EP2460754B1 - Suspending apparatus of traveling cable for elevator and elevator apparatus - Google Patents
Suspending apparatus of traveling cable for elevator and elevator apparatus Download PDFInfo
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- EP2460754B1 EP2460754B1 EP20110192066 EP11192066A EP2460754B1 EP 2460754 B1 EP2460754 B1 EP 2460754B1 EP 20110192066 EP20110192066 EP 20110192066 EP 11192066 A EP11192066 A EP 11192066A EP 2460754 B1 EP2460754 B1 EP 2460754B1
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- traveling cable
- suspending
- supporting bracket
- cable
- traveling
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Classifications
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- 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
Definitions
- the present invention relates to a suspending apparatus of a traveling cable for an elevator and more particularly relates to a suspending apparatus of a traveling cable suitable for an elevator with a large stroke and such an elevator apparatus.
- An elevator is configured to feed power to and exchange signals with a car via a traveling cable suspended between the car and a midpoint of a hoistway.
- FIG. 9 illustrates an exemplary structure of such a traveling cable.
- a traveling cable 10 in this drawing is configured so that a plurality of bundles of electric wires 10a is surrounded with a sheath (coating) 10b, each electric wire 10a including a conductor made of copper for power feeding and signal transmission and covered with an insulator.
- a plurality of suspending wire ropes in the illustrated example two suspending wire ropes 10L and 10R, are embedded in the traveling cable for suspension thereof.
- Fig. 10A and Fig. 10B illustrate an exemplary overall configuration for power-feeding to a car using such a traveling cable.
- Fig. 10A illustrates the case where the car is positioned at a bottom floor and
- Fig. 10B illustrates the case where the car is positioned at a top floor.
- power feeding to a car 11 is performed to a car-side power-feeding device 13 from an elevator controller 12 provided in a machine room on top of a hoistway to control an elevator via the traveling cable 10 at a movable part in tandem with the travelling of the car and via the traveling cable or via a general cable at a fixed part not moving.
- a distance between the bottom floor and the top floor for elevator traveling is called a hoisting stroke (H 1 ) of the elevator.
- H 1 a distance between the bottom floor and the top floor for elevator traveling.
- One end of the traveling cable 10 is suspended by a suspension mechanism 500 on the hoistway side located above a midpoint of the hoisting stroke at a position of H 2 ( ⁇ H 1 /2) from the bottom floor level, and the other end is suspended, using the two suspending wire ropes 10L and 10R, by a suspension mechanism 600 on the car side provided at the bottom of the car.
- a traveling cable used for this class of apparatuses has a unit weight Wt of about 50 N/m (in the exemplary configuration of the traveling cable of Fig, 9 , a conductor area per electric wire is 0.75 mm 2 and the number of wires is 100 to 150).
- Minimums Wc 1 , Wh 2 applied to the suspension mechanisms on the car side and on the hoistway side are about a few tens N as understood from Figs. 10A and 10B .
- the load applied to the suspension mechanisms on the car side and on the hoistway side is about 5,000 N at maximum and repeatedly varies between a few tens N and about 5,000 N. Therefore, these suspension mechanisms are required to resist such a severe load condition.
- Fig. 11 illustrates a conventional example of a suspending apparatus of traveling cable resistant to such a load condition.
- the suspending apparatus of traveling cable of this drawing uses a rope socket that suspends a main rope which hoists a car.
- Rope sockets 520L and 520R are provided for the suspending wire ropes 10L and 10R, respectively, of the traveling cable 10.
- the rope sockets 520L and 520R each include a holding part of a wire rope at a lower part as shown in the drawing, and the holding part has a tapered shape interiorly.
- the suspending wire ropes 10L and 10R bent along the periphery are pressure-connected with a wedge-shaped rope pressing members for fixing and holding, and ends of the suspending wire ropes 10L and 10R are banded with wire grips 521.
- thimble rods shackle rods
- the other ends of the thimble rods 530L and 530R are fixed and supported at a supporting bracket 540 provided at the suspension mechanism 500 on the hoistway side and at the suspension mechanism 600 on the car side illustrated in Fig. 10 .
- This suspending apparatus resistant to severe load conditions allows the load applied to the suspending wire ropes to be distributed uniformly.
- this suspending apparatus is capable of adjusting the fixed positions of the thimble rods in the height direction on the hoistway side or on the car side in accordance with the attachment state between the suspending wire ropes, the rope sockets and the thimble rods so that the load applied to the two suspending wire ropes, e.g., the load of 5,000 N as described above, can be applied to the two suspending wire ropes uniformly.
- the distance between the two suspending wire ropes has to be increased to be suitable to the shape of the rope sockets.
- the width of the traveling cable is further increased, for example, for large scale more than needs and accordingly the weight of the traveling cable also increases, which leads to a contracting result.
- traveling cables for a large stroke are wound around a large drum exceeding 2 m in diameter, and are placed at the bottom of the building.
- the traveling cable In order to suspend such a traveling cable at a midpoint of the hoistway, the traveling cable has to be entered from the bottom part of the hoistway and lifted through the hoistway for suspension.
- Conventional techniques do not mention such a lifting method of a suspension mechanism at the midpoint of the hoistway.
- JP 2009 126640 A a tail cord support device for an elevator is shown.
- the tail cord support device includes a tail cord fixing member for fixing one end of a tail cord and a tail cord swing preventing member fixed inside a hoistway under the tail cord fixing member so as to support the tail cord.
- JP 2001 139259 A an elevator where at least one end of a plurality of ropes driven by a hoist is installed fixedly to a rope fixing end provided in a shaft and a car is suspended by the ropes to move it up and down, at least one end of the plurality of ropes is installed fixedly to the rope fixing end by allowing at least two ropes to pass through one terminal member.
- JP 2008 207901 A a support tool is fixed to a predetermined position of the control cable connected between a control board of the elevator and a car, and is lifted by a lifting device.
- the control cable fixed to the support tool is raised to a predetermined hanging position in the elevator shaft, and in such a state that the support tool fixed to the control cable is lifted by the lifting device, the support tool is mounted to the hanging position of the control cable.
- a suspending apparatus of a traveling cable for an elevator configured to feed power to a car and exchange signals with the car and including a plurality of suspending wire ropes embedded therein.
- the suspending apparatus includes: rope sockets into one of which each suspending wire rope is incorporated, respectively; and thimble rods to one of which each rope socket incorporating the suspending wire rope is fastened, respectively, so that one end of the traveling cable is suspended from a hoistway building and the other end is suspended from the car.
- the thimble rods are configured to have a different length from each other; and the suspending apparatus further includes a traveling cable sway prevention mechanism provided below a drawing point of the suspending wire ropes.
- the thus prepared thimble rods having different dimensions allow rope sockets even having an outside diameter size larger than the distance between the two suspending wire ropes embedded in the traveling cable to be attached so as not to cause mutual interference of the rope sockets.
- a traveling cable of an appropriate size can be used without increasing the size thereof to widen the distance between the two suspending wire ropes.
- the suspending apparatus can be constructed of the thimble rods with small diameters and the rope sockets corresponding to such diameters, so as to achieve a small and reliable suspending apparatus.
- the thimble rods may differ by at least a longitudinal length of the rope sockets. This configuration allows the rope sockets to be attached to two suspending wire ropes at at least positions not causing mutual interference of the rope sockets.
- the sway prevention mechanism may include a plate steel and a hat-shaped fitting surrounding the traveling cable, and the hat-shaped fitting may have internal dimensions equal to or larger than the outside diameter size of the traveling cable.
- the sway prevention mechanism may include plate steels and round bars surrounding the traveling cable, the plate steels facing a minor axis-face of the traveling cable and the round bars facing major axis-face of the traveling cable, and an area surrounded by the plate steels and the round bars may be equal to or larger than external dimensions of the traveling cable.
- the invention further may include a supporting bracket to support the thimble rods against the hoistway building.
- a hole boring may be processed for lifting the supporting bracket together with the traveling cable.
- a suspending apparatus of a traveling cable for an elevator configured to feed power to a car and exchange signals with the car and including a plurality of suspending wire ropes embedded in the traveling cable.
- the suspending apparatus includes: a rope socket into which each suspending wire rope is incorporated; and a thimble rod to which each rope socket incorporating the suspending wire rope is fastened so that one end of the traveling cable is suspended from a hoistway building and the other end is suspended from the car.
- the suspending apparatus further includes a supporting bracket to support the thimble rods against the hoistway building, and the supporting bracket includes a hole bored for lifting the supporting bracket together with the traveling cable.
- the traveling cable can be suspended easily by lifting the traveling cable to the suspension position at the midpoint of the hoistway using the supporting bracket by a crane. Furthermore, the rope sockets and the thimble rods as main elements of the suspending apparatus of the traveling cable can be set before lifting the traveling cable, and therefore the number of operations to be performed in high places at the midpoint of the hoistway can be reduced and worker's safety can be obtained.
- a hole threading may be processed for attachment of an eyebolt in a vicinity of each end of the supporting bracket.
- a through hole boring may be processed for attachment of a shackle in a vicinity of each end of the supporting bracket.
- an elevator apparatus including: a car hoisted in a hoistway; and a traveling cable configured to feed power to the car and exchange signals with the car and comprising a plurality of suspending wire ropes embedded in the traveling cable, each suspending wire rope being incorporated into a rope socket, each rope socket incorporating the suspending wire rope being fastened to a thimble rod so that one end of the traveling cable is suspended from a hoistway building and the other end of the traveling cable is suspended from the car.
- each of the thimble rods is adjusted to have a different length from each other; and a traveling cable sway prevention mechanism is provided below a drawing point of the suspending wire ropes.
- the thus prepared thimble rods having different dimensions allow rope sockets even having an outside diameter size larger than the distance between the two suspending wire ropes embedded in the traveling cable to be attached so as not to cause mutual interference of the rope sockets.
- a traveling cable of an appropriate size can be used without increasing the size thereof to widen the distance between the two suspending wire ropes.
- an elevator apparatus of this configuration can contribute to reduce the weight of the car and enables effective usage of a limited hoistway space, thus improving the usage efficiency of the space.
- a small and reliable suspending apparatus of traveling cable for elevator can be provided even with a traveling cable used in an elevator even for a large stroke. Further, the present invention can facilitate lifting of the traveling cable to a suspension position at the midpoint of the hoistway.
- Fig. 1 illustrates the overall configuration of a suspending apparatus of traveling cable for elevator of the present invention.
- Fig. 2 illustrates the detailed configuration of the suspending apparatus of traveling cable to be attached on a side of a hoistway.
- Fig. 3 illustrates the detailed configuration of the suspending apparatus of traveling cable to be attached on a side of a car.
- Fig. 4 is an enlarged view of a major section illustrating the details of a traveling-cable sway prevention fitting at the suspending apparatus of traveling cable on the hoistway side.
- Fig. 5 is an enlarged view of a major section illustrating the details of a traveling-cable sway prevention fitting at the suspending apparatus of traveling cable on the car side.
- Fig. 6 describes bending load applied to a thimble rod as an element of the suspending apparatus of traveling cable due to rolling of the traveling cable.
- Fig. 7 illustrates the detailed configuration of a bracket to attach and hold/fix a thimble rod in the suspending apparatus of traveling cable on the hoistway side.
- Fig. 8 illustrates a way to suspend a traveling cable on the hoistway side.
- Fig. 1 illustrating the overall configuration of one embodiment of the suspending apparatus of traveling cable for elevator
- signal exchange and power feeding to a car 11 through a traveling cable 10 is performed from a controller (refer to Fig. 10 ) provided in a machine room on top of a hoistway to control an elevator via a car-side power-feeding device 13.
- This traveling cable 10 has one end suspended at a suspension apparatus 100 at a midpoint of the hoistway and the other end suspended at a suspending apparatus 200 on the car side.
- Fig. 2A as a plan view
- Fig. 2B as a cross-sectional view taken along the line IIB-IIB
- Rope sockets 20L and 20R are provided for suspending wire ropes 10L and 10R, respectively, embedded in the traveling cable 10.
- the rope sockets 20L and 20R each include a holding part for a wire rope at a lower part shown in the drawing, and the holding part has a tapered shape interiorly.
- the suspending wire ropes 10L and 10R bent along the periphery are pressure-connected with a wedge-shaped rope pressing members for fixing and holding, and ends of the suspending wire ropes 10L and 10R are banded with wire grips 21L and 21R.
- thimble rods 30L and 30R connected with joint pins 22L and 22R.
- the other ends of the thimble rods 30L and 30R are supported by a supporting bracket 110.
- the supporting bracket 110 is supported in the following manner. Firstly, vertically extended L-section steels 121a, 121b are attached to horizontal beams 120a, 120b made ofH-section steel provided at the respective floors of the building by means of channel steels 122a to 122d. Then, channel steels 123 a, 123b are attached to the L-section steels 121a, 121b and the supporting bracket 110 is mounted on the channels 123a, 123b for supporting.
- This suspending apparatus further includes a sway prevention mechanism 130 to prevent the traveling cable 10 from rolling.
- the detailed configuration of the sway prevention mechanism 130 is described later.
- rope sockets 20L and 20R each include a holding part of a wire rope at a lower part of the drawing, and the holding part has a tapered shape interiorly.
- Suspending wire ropes 10L and 10R bent along the periphery are pressure-connected with a wedge-shaped rope pressing members for fixing and holding, and ends of the suspending wire ropes 10L and 10R are banded with wire grips 21L and 21R.
- thimble rods 30L and 30R connected with joint pins 22L and 22R.
- the other ends of the thimble rods 30L and 30R are supported at a supporting bracket 210 attached to a reinforcing member 220 as an element of the car.
- the reinforcing member 220 is provided with a sway prevention mechanism 230 at brackets 221, 222 extended downward of the car to prevent the traveling cable 10 from rolling.
- the detailed configuration of the sway prevention mechanism 230 is described later.
- the positional relationship between the rope sockets 20L, 20R and the thimble rods 30L, 30R on the hoistway side and on the car side is described below. Firstly, as shown in Fig. 2 , letting that the longitudinal dimension of the rope sockets 20L, 20R is L S2 , the thimble rods 30L, 30R are prepared to have a length of the longitudinal dimension L S2 or more.
- the thimble rods 30L, 30R manufactured beforehand to satisfy the following Expression (3) are used: L 30 ⁇ L 30 ⁇ R + L S ⁇ 2 or L 30 ⁇ R ⁇ L 30 ⁇ L + L S ⁇ 2
- the thus prepared thimble rods 30L, 30R having different dimensions allow the rope sockets even having an outside diameter size larger than the distance between the two suspending wire ropes embedded in the traveling cable to be attached so as not to cause the mutual interference of the rope sockets.
- a traveling cable of an appropriate size can be used without increasing the size thereof to widen the distance between the two suspending wire ropes.
- the thimble rods 30L, 30R have the same lengths on the hoistway side and on the car side. However, they may have different lengths as long as Expression (3) holds.
- the sway prevention mechanism 130 for the traveling cable 10 is provided at the same point of or below a drawing point 10a (see Figs. 2A and 2B ) of the suspending wire ropes 10L, 10R of the traveling cable 10. This is because, as described above for the problems to be solved by the invention, the traveling cable 10 rolls back and forth and around due to wind pressure as the car 11 travels. Especially, a traveling cable used in an elevator with a large stroke becomes long and tends to roll easily. To cope with this rolling, the sway prevention mechanism 130 is provided to reduce a bending force (moment) applied to the thimble rods 30L, 30R.
- Fig. 6 illustrates suspension by one of the two suspending wire ropes embedded in the traveling cable 10, i.e., the wire rope 10L, in the suspending apparatus at the midpoint of the hoistway illustrated in Figs. 2A and 2B .
- Attached to the suspending wire rope 10L are the rope socket 20L and the thimble rod 30L is attached to the rope socket 20L with the joint point 22L.
- the thimble rod 30L is fixed and supported by the bracket 110.
- the bending moment M that the thimble rod 30L receives when the traveling cable 10 rolls is considered.
- the thimble rods will receive such large bending moment as well as repeated moment of 0 to about 900 N.m. In order to resist this moment, robust thimble rods of large diameters are required. Such robust thimble rods of large diameters need larger rope sockets for attachment.
- the sway prevention mechanism 130 of traveling cable is to prevent this bending moment, and can eliminate the necessity of thicker thimble rods and larger rope sockets to attach the thimble rods and can achieve a configuration using thimble rods of small diameters taking account of the strength for vertical tensile load only and rope sockets corresponding to such diameters. Therefore, a small and reliable suspending apparatus can be achieved.
- Fig. 4 illustrates the details at the traveling cable suspending apparatus on the hoistway side
- Fig. 5 illustrates the details at the traveling cable suspending apparatus on the car side.
- the sway prevention mechanism 130 of traveling cable on the hoistway side of Fig. 4 is attached in the following manner. After a plate steel 131 is provided on two L-section steels 121a, 121b fixed and supported at the building and provided vertically, the traveling cable 10 is attached to the plate steel 131 so as to be covered with a hat-shaped fitting 132 as illustrated in the drawing.
- the hat-shaped fitting 132 covers the traveling cable 10 so as to have internal dimensions L hw ⁇ L ht satisfying L ht ⁇ L tw and L ht ⁇ L tt where L tw is the width (major axis-side) of the traveling cable 10 and L tt is the thickness (minor axis-side) thereof.
- Such dimensions of the internal dimensions of the hat-shaped fitting equal to or slightly larger than the outside diameter size of the traveling cable prevents the weight of the traveling cable from applying to the sway prevention mechanism, and so the sway prevention mechanism can be configured with a simple plate steel and such a hat-shaped fitting to suppress rolling only.
- sway prevention mechanism 230 on the car side is described below.
- This configuration of the sway prevention mechanism is effective when the distance L ex between the suspension position of the traveling cable 10 and the bracket 222 fixing the sway prevention mechanism is relatively large as illustrated in Fig. 3 .
- brackets 231a, 231b having a U-shape
- attached to these two brackets 231a, 231b are two round bars 232a, 232b so as to sandwich the traveling cable 10 therebetween.
- the area surrounded by the brackets 231a, 231b and the round bars 232a, 232b, L ew ⁇ L ct is set similarly to the sway prevention mechanism of traveling cable on the hoistway side so that L hw and L ht are equal to or slightly larger than L tw and L tt , respectively, i.e., L hw ⁇ L tw , L ht ⁇ L tt where L tw , is the width (the major axis-side) of the traveling cable 10 and L tt is the thickness (the minor axis-side) thereof.
- the sway prevention mechanism can be configured with simple members of the brackets 231a, 231b and the round bars 232a, 232b to suppress rolling only.
- thimble rods previously having different dimensions can prevent mutual interference between rope sockets, and sway prevention mechanisms preventing roll of the traveling cable back and forth and around enables the configuration of small thimble rods and such rope sockets, thus realizing a small and reliable suspending apparatus of traveling cable.
- the traveling cable is short and light, a member such as nylon sling or fiber rope is wound around the traveling cable as sheath, and the traveling cable can be easily carried to the suspension position using the member by a crane.
- the elevator has a hoisting stroke of 400 m, however, the suspension position on the hoistway side is about 200 m from the bottom floor as stated above and the weight of the traveling cable is about 10,000 N, and so it is difficult to lift the traveling cable with this method.
- the bracket 110 for fixing and supporting the thimble rods 30L, 30R illustrated in Figs. 2A and 2B doubles as a lifting bracket.
- Fig. 7 and Fig. 8 illustrate the details thereof.
- the bracket 110 is the bracket for fixing and supporting the thimble rods 30L, 30R illustrated in Figs. 2A and 2B .
- This bracket 110 is provided with through holes 111a, 111b bored for the attachment of the thimble rods 30L, 30R, through holes 112a, 112b bored to let bolts pass through to fix this bracket 110 to the channels 123a, 123b of Fig. 2 and threaded holes 113a, 113b threaded for the attachment of eyebolts 50 in the vicinity of both ends of the bracket 110.
- the traveling cable is lifted to the suspension position on the hoistway side as seen in Fig. 8 and is installed there.
- the rope sockets 20L, 20R and the thimble rods 30L, 30R are set at the two suspending wire ropes 10L, 10R of the traveling cable 10.
- the thimble rods 30L, 30R are passed through the through holes 111a, 111b bored in the bracket 110, and upper and lower parts of the thimble rods 30L, 30R are fixed with nuts to the bracket 110.
- eyebolts 50a, 50b are attached to the bracket 110 at the threaded holes 113a, 113b in the vicinity of both ends of the bracket 110.
- the traveling cable 10 is lifted while attaching lifting wire ropes 60a and 60b to the eyebolts 50a and 50b, respectively, and hanging the lifting wire ropes 60a and 60b on a hook 61 of the crane.
- the upper and lower parts of the thimble rods 30L, 30R are fixed to the bracket 110 with nuts, rotation of the thimble rods 30L, 30R and the suspending wires 10L, 10R can be prevented as well.
- the supporting bracket 110 is placed on the channels 123a, 123b and is fixed and supported to the channels 123a, 123b with bolts and nuts via the through holes 112a, 112b bored in the bracket 110.
- the traveling cable 10 can be lifted to the suspension position at the midpoint of the hoistway by a crane simply by attaching the eyebolts 50 to the supporting bracket 110.
- the rope sockets 20L, 20R and the thimble rods 30L, 30R as main elements of the suspending apparatus of the traveling cable 10 can be set before lifting the traveling cable, and therefore the number of operations to be performed in high places at the midpoint of the hoistway can be reduced and worker's safety can be obtained.
- eyebolts are used for lifting in the above description, similar effects can be obtained using a hanging ring called a shackle.
- a hole may be bored at a horizontal face of the bracket 110 for lifting so as to let a shaft of the shackle pass therethrough.
- Elevator apparatuses using the suspending apparatus described in the present embodiment can prevent an unnecessary increase of the suspending apparatus in size, which can contribute to reduce the weight of a car and enables effective usage of a limited hoistway space, thus improving the usage efficiency of the space.
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Description
- The present invention relates to a suspending apparatus of a traveling cable for an elevator and more particularly relates to a suspending apparatus of a traveling cable suitable for an elevator with a large stroke and such an elevator apparatus.
- An elevator is configured to feed power to and exchange signals with a car via a traveling cable suspended between the car and a midpoint of a hoistway.
-
Fig. 9 illustrates an exemplary structure of such a traveling cable. Atraveling cable 10 in this drawing is configured so that a plurality of bundles ofelectric wires 10a is surrounded with a sheath (coating) 10b, eachelectric wire 10a including a conductor made of copper for power feeding and signal transmission and covered with an insulator. For large-stroke purpose, a plurality of suspending wire ropes, in the illustrated example two suspendingwire ropes -
Fig. 10A and Fig. 10B illustrate an exemplary overall configuration for power-feeding to a car using such a traveling cable.Fig. 10A illustrates the case where the car is positioned at a bottom floor andFig. 10B illustrates the case where the car is positioned at a top floor. InFigs. 10A and 10B , power feeding to acar 11 is performed to a car-side power-feeding device 13 from anelevator controller 12 provided in a machine room on top of a hoistway to control an elevator via thetraveling cable 10 at a movable part in tandem with the travelling of the car and via the traveling cable or via a general cable at a fixed part not moving. - Next, positions for suspending of such a
traveling cable 10 are described below. InFig. 10A and Fig. 10B , a distance between the bottom floor and the top floor for elevator traveling is called a hoisting stroke (H1) of the elevator. One end of thetraveling cable 10 is suspended by asuspension mechanism 500 on the hoistway side located above a midpoint of the hoisting stroke at a position of H2 (≅H1/2) from the bottom floor level, and the other end is suspended, using the two suspendingwire ropes suspension mechanism 600 on the car side provided at the bottom of the car. - The following considers the load applied to each of the suspending mechanisms when the stroke is a large stroke of H1=200 m. A traveling cable used for this class of apparatuses has a unit weight Wt of about 50 N/m (in the exemplary configuration of the traveling cable of
Fig, 9 , a conductor area per electric wire is 0.75 mm2 and the number of wires is 100 to 150). -
-
- Minimums Wc1, Wh2 applied to the suspension mechanisms on the car side and on the hoistway side are about a few tens N as understood from
Figs. 10A and 10B . - In this way, the load applied to the suspension mechanisms on the car side and on the hoistway side is about 5,000 N at maximum and repeatedly varies between a few tens N and about 5,000 N. Therefore, these suspension mechanisms are required to resist such a severe load condition.
-
Fig. 11 illustrates a conventional example of a suspending apparatus of traveling cable resistant to such a load condition. The suspending apparatus of traveling cable of this drawing uses a rope socket that suspends a main rope which hoists a car.Rope sockets wire ropes traveling cable 10. Therope sockets wire ropes wire ropes wire grips 521. - At the top of the
rope sockets joint pins 522. The other ends of thethimble rods bracket 540 provided at thesuspension mechanism 500 on the hoistway side and at thesuspension mechanism 600 on the car side illustrated inFig. 10 . - This suspending apparatus resistant to severe load conditions allows the load applied to the suspending wire ropes to be distributed uniformly. In other words, this suspending apparatus is capable of adjusting the fixed positions of the thimble rods in the height direction on the hoistway side or on the car side in accordance with the attachment state between the suspending wire ropes, the rope sockets and the thimble rods so that the load applied to the two suspending wire ropes, e.g., the load of 5,000 N as described above, can be applied to the two suspending wire ropes uniformly.
- With the recent tendency to construct high-rise buildings, elevators therein are forced to have a hoisting stroke exceeding 400 m. The load applied to suspending apparatuses of the traveling cable accordingly increases in proportion to such a hoisting stroke. For instance, in the case where the hoisting stroke is 400 m, the load of a few tens to 10,000 N will be applied to the suspension mechanisms based on Expressions (1) (2) mentioned as background of the invention. In such a case, the thimble rods and the rope sockets suspending the traveling cable have to have increased durability by increasing in their size, for example.
- The conventional technique disclosed in
JP-A-2004-137019 rope sockets Fig. 11 with reference to the distance Ltr between two suspendingwire ropes Fig. 11 causes interference between the rope sockets. - In order to avoid such interference, the distance between the two suspending wire ropes has to be increased to be suitable to the shape of the rope sockets. To this end, the width of the traveling cable is further increased, for example, for large scale more than needs and accordingly the weight of the traveling cable also increases, which leads to a contracting result.
- Further, as the elevator travels, the traveling cable rolls back and forth and around due to wind pressure. Especially, a traveling cable used in an elevator with a large stroke becomes long and tends to roll easily. This rolling together with bending stress repeatedly applied to attached parts a1, a2 of the
member 540 fixing and supporting thethimble rods Fig. 11 may cause fatigue breakdown in some cases. Conventional techniques have not considered such repeatedly applied bending stress. - As another problem, typical traveling cables for a large stroke are wound around a large drum exceeding 2 m in diameter, and are placed at the bottom of the building. In order to suspend such a traveling cable at a midpoint of the hoistway, the traveling cable has to be entered from the bottom part of the hoistway and lifted through the hoistway for suspension. Conventional techniques do not mention such a lifting method of a suspension mechanism at the midpoint of the hoistway.
- In
JP 2009 126640 A - In
JP 2001 139259 A - In
JP 2008 207901 A - In view of the aforementioned problems of the conventional technique, it is an object of the present invention to provide a traveling cable and a suspending apparatus therefor used in an elevator even with a large stroke without increasing the traveling cable and the suspending apparatus in size. It is another object of the present invention to provide a suspending apparatus of traveling cable for elevator capable of facilitating lifting of the traveling cable to a suspending mechanism located at a midpoint of the hoistway, and such an elevator apparatus.
- In order to fulfill the aforementioned major objects, according to a first aspect of the present invention, there is provided a suspending apparatus of a traveling cable for an elevator, the traveling cable configured to feed power to a car and exchange signals with the car and including a plurality of suspending wire ropes embedded therein. The suspending apparatus includes: rope sockets into one of which each suspending wire rope is incorporated, respectively; and thimble rods to one of which each rope socket incorporating the suspending wire rope is fastened, respectively, so that one end of the traveling cable is suspended from a hoistway building and the other end is suspended from the car. In the suspending apparatus, the thimble rods are configured to have a different length from each other; and the suspending apparatus further includes a traveling cable sway prevention mechanism provided below a drawing point of the suspending wire ropes.
- The thus prepared thimble rods having different dimensions allow rope sockets even having an outside diameter size larger than the distance between the two suspending wire ropes embedded in the traveling cable to be attached so as not to cause mutual interference of the rope sockets. As a result, a traveling cable of an appropriate size can be used without increasing the size thereof to widen the distance between the two suspending wire ropes.
- Since the sway prevention mechanism of a traveling cable is provided, it can suppress bending load repeatedly applied to the thimble rods due to rolling of the traveling cable back and force and around, and thus, can eliminate the necessity of thicker thimble rods and larger rope sockets to attach the thimble rods. As a result, in view of only the strength for vertical tensile load, the suspending apparatus can be constructed of the thimble rods with small diameters and the rope sockets corresponding to such diameters, so as to achieve a small and reliable suspending apparatus.
- In the first aspect of the present invention, the thimble rods may differ by at least a longitudinal length of the rope sockets. This configuration allows the rope sockets to be attached to two suspending wire ropes at at least positions not causing mutual interference of the rope sockets.
- In the first aspect of the present invention, the sway prevention mechanism may include a plate steel and a hat-shaped fitting surrounding the traveling cable, and the hat-shaped fitting may have internal dimensions equal to or larger than the outside diameter size of the traveling cable. With this configuration, the weight of the traveling cable is not applied to the sway prevention mechanism, and so the sway prevention mechanism can be configured with simple members of the plate steel and the hat-shaped fitting to suppress rolling only.
- In the first aspect of the present invention, the sway prevention mechanism may include plate steels and round bars surrounding the traveling cable, the plate steels facing a minor axis-face of the traveling cable and the round bars facing major axis-face of the traveling cable, and an area surrounded by the plate steels and the round bars may be equal to or larger than external dimensions of the traveling cable. With this configuration, similarly to the above mentioned, the weight of the traveling cable is not applied to the sway prevention mechanism, and so the sway prevention mechanism can be configured with simple members of the plate steels and the round bars to suppress rolling only.
- In the first aspect of the present invention, the invention further may include a supporting bracket to support the thimble rods against the hoistway building. In the supporting bracket, a hole boring may be processed for lifting the supporting bracket together with the traveling cable. With this configuration, the traveling cable can be suspended easily by lifting the traveling cable to the suspension position at the midpoint of the hoistway using the supporting bracket by a crane.
- According to a second aspect of the present invention, there is provided a suspending apparatus of a traveling cable for an elevator, the traveling cable configured to feed power to a car and exchange signals with the car and including a plurality of suspending wire ropes embedded in the traveling cable. The suspending apparatus includes: a rope socket into which each suspending wire rope is incorporated; and a thimble rod to which each rope socket incorporating the suspending wire rope is fastened so that one end of the traveling cable is suspended from a hoistway building and the other end is suspended from the car. The suspending apparatus further includes a supporting bracket to support the thimble rods against the hoistway building, and the supporting bracket includes a hole bored for lifting the supporting bracket together with the traveling cable. With this configuration, the traveling cable can be suspended easily by lifting the traveling cable to the suspension position at the midpoint of the hoistway using the supporting bracket by a crane. Furthermore, the rope sockets and the thimble rods as main elements of the suspending apparatus of the traveling cable can be set before lifting the traveling cable, and therefore the number of operations to be performed in high places at the midpoint of the hoistway can be reduced and worker's safety can be obtained.
- In the second aspect of the present invention, in the hole boring of the supporting bracket, a hole threading may be processed for attachment of an eyebolt in a vicinity of each end of the supporting bracket. With this configuration, the traveling cable can be lifted to the suspension position at the midpoint of the hoistway by a crane simply by attaching the eyebolts to the supporting bracket.
- In the second aspect of the present invention, in the hole boring of the supporting bracket, a through hole boring may be processed for attachment of a shackle in a vicinity of each end of the supporting bracket. With this configuration, similarly to the above mentioned, the traveling cable can be lifted to the suspension position at the midpoint of the hoistway by a crane simply by attaching the shackles to the supporting bracket.
- According to a third aspect of the present invention, there is provided an elevator apparatus including: a car hoisted in a hoistway; and a traveling cable configured to feed power to the car and exchange signals with the car and comprising a plurality of suspending wire ropes embedded in the traveling cable, each suspending wire rope being incorporated into a rope socket, each rope socket incorporating the suspending wire rope being fastened to a thimble rod so that one end of the traveling cable is suspended from a hoistway building and the other end of the traveling cable is suspended from the car. In this elevator apparatus, each of the thimble rods is adjusted to have a different length from each other; and a traveling cable sway prevention mechanism is provided below a drawing point of the suspending wire ropes. The thus prepared thimble rods having different dimensions allow rope sockets even having an outside diameter size larger than the distance between the two suspending wire ropes embedded in the traveling cable to be attached so as not to cause mutual interference of the rope sockets. As a result, a traveling cable of an appropriate size can be used without increasing the size thereof to widen the distance between the two suspending wire ropes. Furthermore, an elevator apparatus of this configuration can contribute to reduce the weight of the car and enables effective usage of a limited hoistway space, thus improving the usage efficiency of the space.
- According to the present invention, a small and reliable suspending apparatus of traveling cable for elevator can be provided even with a traveling cable used in an elevator even for a large stroke. Further, the present invention can facilitate lifting of the traveling cable to a suspension position at the midpoint of the hoistway.
-
-
Fig. 1 illustrates the overall configuration of a suspending apparatus of traveling cable for elevator according to the present invention. -
Figs. 2A and 2B illustrate the detailed configuration of the suspending apparatus of traveling cable to be attached on a side of a hoistway. -
Figs. 3A and 3B illustrate the detailed configuration of the suspending apparatus of traveling cable to be attached on a side of a car. -
Fig. 4 is an enlarged view of a major section illustrating the details of a traveling-cable sway prevention fitting at the suspending apparatus of traveling cable on the hoistway side. -
Fig. 5 is an enlarged view of a major section illustrating the details of a traveling-cable sway prevention fitting at the suspending apparatus of traveling cable on the car side. -
Fig. 6 describes bending load applied to a thimble rod as an element of the suspending apparatus of traveling cable due to rolling of the traveling cable. -
Fig. 7 illustrates the detailed configuration of a bracket to attach and support/fix a thimble rod in the suspending apparatus of traveling cable on the hoistway side. -
Fig. 8 illustrates a way to lift a traveling cable on the hoistway side. -
Fig. 9 illustrates an exemplary structure of a traveling cable used for a large stroke to feed power to a car. -
Fig. 10A and Fig. 10B illustrate a typical and exemplary overall configuration for power feeding to a car using a traveling cable. -
Fig. 11 illustrates a conventional suspending apparatus of traveling cable for elevator. - The following describes one embodiment of a suspending apparatus of traveling cable for elevator according to the present invention, with reference to
Fig. 1 through Fig. 8 .Fig. 1 illustrates the overall configuration of a suspending apparatus of traveling cable for elevator of the present invention.Fig. 2 illustrates the detailed configuration of the suspending apparatus of traveling cable to be attached on a side of a hoistway.Fig. 3 illustrates the detailed configuration of the suspending apparatus of traveling cable to be attached on a side of a car.Fig. 4 is an enlarged view of a major section illustrating the details of a traveling-cable sway prevention fitting at the suspending apparatus of traveling cable on the hoistway side.Fig. 5 is an enlarged view of a major section illustrating the details of a traveling-cable sway prevention fitting at the suspending apparatus of traveling cable on the car side. -
Fig. 6 describes bending load applied to a thimble rod as an element of the suspending apparatus of traveling cable due to rolling of the traveling cable.Fig. 7 illustrates the detailed configuration of a bracket to attach and hold/fix a thimble rod in the suspending apparatus of traveling cable on the hoistway side.Fig. 8 illustrates a way to suspend a traveling cable on the hoistway side. - As in
Fig. 1 illustrating the overall configuration of one embodiment of the suspending apparatus of traveling cable for elevator, signal exchange and power feeding to acar 11 through a travelingcable 10 is performed from a controller (refer toFig. 10 ) provided in a machine room on top of a hoistway to control an elevator via a car-side power-feedingdevice 13. This travelingcable 10 has one end suspended at asuspension apparatus 100 at a midpoint of the hoistway and the other end suspended at a suspendingapparatus 200 on the car side. - Referring now to
Fig. 2A as a plan view andFig. 2B as a cross-sectional view taken along the line IIB-IIB, thesuspension apparatus 100 on the hoistway side is described in detail below.Rope sockets wire ropes cable 10. - The
rope sockets wire ropes wire ropes wire grips - At the top of the
rope sockets thimble rods joint pins thimble rods bracket 110. The supportingbracket 110 is supported in the following manner. Firstly, vertically extended L-section steels horizontal beams channel steels 122a to 122d. Then, channel steels 123 a, 123b are attached to the L-section steels bracket 110 is mounted on thechannels - This suspending apparatus further includes a
sway prevention mechanism 130 to prevent the travelingcable 10 from rolling. The detailed configuration of thesway prevention mechanism 130 is described later. - Referring now to
Fig. 3A as a plan view andFig. 3B as a cross-sectional view taken along the line IIIB-IIIB, thesuspension apparatus 200 on the car side is described below in detail. Similarly to the suspension apparatus on the hoistway side,rope sockets wire ropes wire ropes wire grips - At the top of
rope sockets thimble rods joint pins thimble rods bracket 210 attached to a reinforcingmember 220 as an element of the car. The reinforcingmember 220 is provided with asway prevention mechanism 230 atbrackets cable 10 from rolling. The detailed configuration of thesway prevention mechanism 230 is described later. - The positional relationship between the
rope sockets thimble rods Fig. 2 , letting that the longitudinal dimension of therope sockets thimble rods thimble rod 30L is L30L and the length of thethimble rod 30R is L30R, thethimble rods - The thus
prepared thimble rods - In this example, the
thimble rods - Next, the
sway prevention mechanism 130 for the travelingcable 10 is provided at the same point of or below adrawing point 10a (seeFigs. 2A and 2B ) of the suspendingwire ropes cable 10. This is because, as described above for the problems to be solved by the invention, the travelingcable 10 rolls back and forth and around due to wind pressure as thecar 11 travels. Especially, a traveling cable used in an elevator with a large stroke becomes long and tends to roll easily. To cope with this rolling, thesway prevention mechanism 130 is provided to reduce a bending force (moment) applied to thethimble rods - Referring now to
Fig. 6 , the bending moment applied to the thimble rods as an element of the suspending apparatus of traveling cable due to rolling of the traveling cable is described below. -
Fig. 6 illustrates suspension by one of the two suspending wire ropes embedded in the travelingcable 10, i.e., thewire rope 10L, in the suspending apparatus at the midpoint of the hoistway illustrated inFigs. 2A and 2B . Attached to the suspendingwire rope 10L are therope socket 20L and thethimble rod 30L is attached to therope socket 20L with thejoint point 22L. Thethimble rod 30L is fixed and supported by thebracket 110. - Herein, the bending moment M that the
thimble rod 30L receives when the travelingcable 10 rolls is considered. -
-
- Then, bending moment M for the class of a hosting stroke of 400 m as a large stroke can be calculated as about 900 N·m at maximum, where letting the unit weight of the traveling cable is 50N, the maximum weight Wc1 of the traveling cable is 10,000 N based on Expression (2) and the inclination of the rope θ=10° and the length L12 of the
thimble rod 30L = 0.5 m. - The thimble rods will receive such large bending moment as well as repeated moment of 0 to about 900 N.m. In order to resist this moment, robust thimble rods of large diameters are required. Such robust thimble rods of large diameters need larger rope sockets for attachment.
- The
sway prevention mechanism 130 of traveling cable is to prevent this bending moment, and can eliminate the necessity of thicker thimble rods and larger rope sockets to attach the thimble rods and can achieve a configuration using thimble rods of small diameters taking account of the strength for vertical tensile load only and rope sockets corresponding to such diameters. Therefore, a small and reliable suspending apparatus can be achieved. - As for the sway prevention mechanism of traveling cable,
Fig. 4 illustrates the details at the traveling cable suspending apparatus on the hoistway side andFig. 5 illustrates the details at the traveling cable suspending apparatus on the car side. Thesway prevention mechanism 130 of traveling cable on the hoistway side ofFig. 4 is attached in the following manner. After aplate steel 131 is provided on two L-section steels cable 10 is attached to theplate steel 131 so as to be covered with a hat-shapedfitting 132 as illustrated in the drawing. - The hat-shaped
fitting 132 covers the travelingcable 10 so as to have internal dimensions Lhw×Lht satisfying Lht≥Ltw and Lht≥Ltt where Ltw is the width (major axis-side) of the travelingcable 10 and Ltt is the thickness (minor axis-side) thereof. - Such dimensions of the internal dimensions of the hat-shaped fitting equal to or slightly larger than the outside diameter size of the traveling cable prevents the weight of the traveling cable from applying to the sway prevention mechanism, and so the sway prevention mechanism can be configured with a simple plate steel and such a hat-shaped fitting to suppress rolling only.
- Referring next to
Fig. 5 , thesway prevention mechanism 230 on the car side is described below. This configuration of the sway prevention mechanism is effective when the distance Lex between the suspension position of the travelingcable 10 and thebracket 222 fixing the sway prevention mechanism is relatively large as illustrated inFig. 3 . - In
Fig. 5 , attached to thebracket 222 supported and fixed to the car are twobrackets brackets round bars cable 10 therebetween. The area surrounded by thebrackets round bars cable 10 and Ltt is the thickness (the minor axis-side) thereof. - With this configuration, similarly to the sway prevention mechanism of traveling cable on the hoistway side, even when the distance Lex between the suspension position of the traveling
cable 10 and thebracket 222 fixing the sway prevention mechanism is relatively large, the weight of the traveling cable is not applied to the sway prevention mechanism, and so the sway prevention mechanism can be configured with simple members of thebrackets round bars - As stated above, thimble rods previously having different dimensions can prevent mutual interference between rope sockets, and sway prevention mechanisms preventing roll of the traveling cable back and forth and around enables the configuration of small thimble rods and such rope sockets, thus realizing a small and reliable suspending apparatus of traveling cable.
- Next, a way to move the traveling cable to a suspension position on the hoistway side is described below. When the traveling cable is short and light, a member such as nylon sling or fiber rope is wound around the traveling cable as sheath, and the traveling cable can be easily carried to the suspension position using the member by a crane. When the elevator has a hoisting stroke of 400 m, however, the suspension position on the hoistway side is about 200 m from the bottom floor as stated above and the weight of the traveling cable is about 10,000 N, and so it is difficult to lift the traveling cable with this method.
- In the present invention, the
bracket 110 for fixing and supporting thethimble rods Figs. 2A and 2B doubles as a lifting bracket.Fig. 7 andFig. 8 illustrate the details thereof. - In
Fig. 7 , thebracket 110 is the bracket for fixing and supporting thethimble rods Figs. 2A and 2B . Thisbracket 110 is provided with throughholes thimble rods holes bracket 110 to thechannels Fig. 2 and threadedholes eyebolts 50 in the vicinity of both ends of thebracket 110. - Using the
bracket 110 with the thus bored holes, the traveling cable is lifted to the suspension position on the hoistway side as seen inFig. 8 and is installed there. Firstly, as illustrated inFig. 2 , therope sockets thimble rods wire ropes cable 10. Thethimble rods holes bracket 110, and upper and lower parts of thethimble rods bracket 110. - Then,
eyebolts bracket 110 at the threadedholes bracket 110. In the thus set state, the travelingcable 10 is lifted while attachinglifting wire ropes eyebolts lifting wire ropes hook 61 of the crane. At this time, since the upper and lower parts of thethimble rods bracket 110 with nuts, rotation of thethimble rods wires - After lifting the traveling
cable 10 to the suspension position of the hoistway, as illustrated inFig. 2 , the supportingbracket 110 is placed on thechannels channels holes bracket 110. - In this way, the traveling
cable 10 can be lifted to the suspension position at the midpoint of the hoistway by a crane simply by attaching theeyebolts 50 to the supportingbracket 110. - Furthermore, the
rope sockets thimble rods cable 10 can be set before lifting the traveling cable, and therefore the number of operations to be performed in high places at the midpoint of the hoistway can be reduced and worker's safety can be obtained. - Although eyebolts are used for lifting in the above description, similar effects can be obtained using a hanging ring called a shackle. In this case, a hole may be bored at a horizontal face of the
bracket 110 for lifting so as to let a shaft of the shackle pass therethrough. - Elevator apparatuses using the suspending apparatus described in the present embodiment can prevent an unnecessary increase of the suspending apparatus in size, which can contribute to reduce the weight of a car and enables effective usage of a limited hoistway space, thus improving the usage efficiency of the space.
Claims (7)
- A suspending apparatus of a traveling cable for an elevator, the traveling cable (10) configured to feed power to a car and exchange signals with the car and including a plurality of suspending wire ropes (10L, 10R) embedded therein, the suspending apparatus comprising:rope sockets (20L, 20R) into each which a suspending wire rope (10L, 10R) is incorporated, respectively; and thimble rods (30L, 30R) to one of which each rope socket (20L, 20R) incorporating the suspending wire rope (10L, 10R) is fastened, respectively, so that one end of the traveling cable (10) is suspended from a hoistway building and the other end is suspended from the car,
characterised in that said thimble rods (30L, 30R) are configured to have a different length from each other, and
the suspending apparatus further comprises a traveling cable sway prevention mechanism (130, 230) provided below a drawing point of the suspending wire ropes (10L, 10R), and
wherein said sway prevention mechanism (230) includes plate steels (231) and round bars (232a,b) surrounding the traveling cable (10), the plate steels facing a minor axis-face of the traveling cable (10) and the round bars (232a,b) facing a major axis-face of the traveling cable (10), and an area surrounded by the plate steels and the round bars (232a,b) is equal to or larger than external dimensions of the traveling cable (10). - The suspending apparatus of a traveling cable for an elevator according to claim 1, wherein the thimble rods (30L, 30R) differ in length by at least a longitudinal length of the rope sockets (20L, 20R).
- The suspending apparatus of a traveling cable for an elevator according to claim 1, wherein said sway prevention mechanism (130, 230) includes a plate steel (131) and a hat-shaped fitting (132) surrounding the traveling cable (10), said hat-shaped fitting having internal dimensions equal to or larger than an outside diameter size of the traveling cable (10).
- The suspending apparatus of a traveling cable for an elevator according to claim 1, further comprising a supporting bracket (110) to support the thimble rods (30L, 30R) against the hoistway building, wherein a hole boring is processed in the supporting bracket for lifting the supporting bracket (110) together with the traveling cable (10).
- A suspending apparatus of a traveling cable (10) for an elevator according to claim 1, wherein the suspending apparatus further comprises a supporting bracket (110) to support the thimble rods (30L, 30R) against the hoistway building, and in said supporting bracket (110), a hole boring is processed for lifting the supporting bracket together with the traveling cable (10).
- The suspending apparatus of a traveling cable for an elevator according to claim 5, wherein in the hole boring of the supporting bracket (110), a hole threading is processed for attachment of an eyebolt in a vicinity of each end of the supporting bracket (110).
- The suspending apparatus of a traveling cable for an elevator according to claim 5, wherein in the hole boring of the supporting bracket (110), a through hole boring is processed for attachment of a shackle in a vicinity of each end of the supporting bracket (110).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2010271375A JP5528312B2 (en) | 2010-12-06 | 2010-12-06 | Suspension device for elevator tail cord and elevator device |
Publications (2)
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EP2460754A1 EP2460754A1 (en) | 2012-06-06 |
EP2460754B1 true EP2460754B1 (en) | 2014-11-19 |
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EP20110192066 Active EP2460754B1 (en) | 2010-12-06 | 2011-12-06 | Suspending apparatus of traveling cable for elevator and elevator apparatus |
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EP (1) | EP2460754B1 (en) |
JP (1) | JP5528312B2 (en) |
CN (1) | CN102530679B (en) |
HK (1) | HK1168834A1 (en) |
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CN103318727B (en) * | 2013-05-27 | 2016-03-09 | 宣城市安华机电设备有限公司 | Take steel rope as the elevator trailing cable of supporting part or the suspension gear of compensated cable |
JP2015003799A (en) * | 2013-06-21 | 2015-01-08 | 株式会社日立製作所 | Vibration control device for elevator tail cord |
DE102013219825A1 (en) * | 2013-09-30 | 2015-04-02 | Thyssenkrupp Elevator Ag | elevator system |
US9850096B2 (en) * | 2014-04-29 | 2017-12-26 | Kone Corporation | Travelling cable clamp assembly, an elevator arrangement, and a method |
JP6404168B2 (en) * | 2015-04-02 | 2018-10-10 | 株式会社日立製作所 | Elevator equipment |
JP6041946B1 (en) * | 2015-08-25 | 2016-12-14 | 三菱電機ビルテクノサービス株式会社 | Elevator control cable delivery cart |
CN106477423A (en) * | 2015-08-27 | 2017-03-08 | 富士电梯(合肥)有限公司 | A kind of elevator device against shake and its anti-shaking method |
CN106477419A (en) * | 2015-08-27 | 2017-03-08 | 富士电梯(合肥)有限公司 | A kind of elevator start and stop stabilising arrangement and its control method |
ES2947228T3 (en) * | 2016-07-27 | 2023-08-03 | Otis Elevator Co | Traction cable oscillation prevention |
CN108275596A (en) * | 2017-01-06 | 2018-07-13 | 上海优爱宝智能机器人科技股份有限公司 | Display material dynamic suspension apparatus |
CN110371824A (en) * | 2019-06-03 | 2019-10-25 | 上海贝恩科电缆有限公司 | A kind of Multi-functional accompanying cable is segmented fixed device up and down |
CN110775793B (en) * | 2019-11-21 | 2021-06-25 | 中国矿业大学 | Split type flat tail rope swing control device and method for vertical shaft elevator |
CN114464362B (en) * | 2022-03-15 | 2023-09-26 | 南通中尧特雷卡电梯产品有限公司 | Multifunctional elevator trailing cable and manufacturing method thereof |
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JPS5795122A (en) * | 1980-12-02 | 1982-06-12 | Fujikura Ltd | Method of preventing vibration of supension flat cable of plural superposed strands |
JPS57203625U (en) * | 1981-06-20 | 1982-12-24 | ||
JPS6097185A (en) * | 1983-10-31 | 1985-05-30 | 株式会社東芝 | Vibration absorber for elevator |
JP2821554B2 (en) * | 1991-07-01 | 1998-11-05 | 株式会社日立製作所 | Elevator tail cord damping device |
US5861084A (en) * | 1997-04-02 | 1999-01-19 | Otis Elevator Company | System and method for minimizing horizontal vibration of elevator compensating ropes |
JP2001139259A (en) * | 1999-11-11 | 2001-05-22 | Hitachi Building Systems Co Ltd | Elevator |
JP2004137019A (en) * | 2002-10-16 | 2004-05-13 | Toshiba Elevator Co Ltd | Tail code mounting apparatus of elevator |
JP2007308258A (en) * | 2006-05-18 | 2007-11-29 | Mitsubishi Electric Corp | Cable suspension device for elevator |
JP4957287B2 (en) * | 2007-02-23 | 2012-06-20 | 三菱電機株式会社 | Elevator control cable fixing method |
JP5191034B2 (en) * | 2007-11-22 | 2013-04-24 | 東芝エレベータ株式会社 | Elevator tail cord support device |
-
2010
- 2010-12-06 JP JP2010271375A patent/JP5528312B2/en active Active
-
2011
- 2011-11-23 CN CN201110375683.5A patent/CN102530679B/en active Active
- 2011-12-06 EP EP20110192066 patent/EP2460754B1/en active Active
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2012
- 2012-09-27 HK HK12109510.8A patent/HK1168834A1/en unknown
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HK1168834A1 (en) | 2013-01-11 |
CN102530679A (en) | 2012-07-04 |
JP2012121637A (en) | 2012-06-28 |
JP5528312B2 (en) | 2014-06-25 |
EP2460754A1 (en) | 2012-06-06 |
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