Classifications

• • 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
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B1/00—Constructional features of ropes or cables
  • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
  • D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B1/00—Constructional features of ropes or cables
  • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
  • D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B1/00—Constructional features of ropes or cables
  • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
  • D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B5/00—Making ropes or cables from special materials or of particular form
  • D07B5/007—Making ropes or cables from special materials or of particular form comprising postformed and thereby radially plastically deformed elements
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B2201/00—Ropes or cables
  • D07B2201/10—Rope or cable structures
  • D07B2201/1028—Rope or cable structures characterised by the number of strands
  • D07B2201/1036—Rope or cable structures characterised by the number of strands nine or more strands respectively forming multiple layers
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B2201/00—Ropes or cables
  • D07B2201/20—Rope or cable components
  • D07B2201/2015—Strands
  • D07B2201/2019—Strands pressed to shape
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B2201/00—Ropes or cables
  • D07B2201/20—Rope or cable components
  • D07B2201/2047—Cores
  • D07B2201/2052—Cores characterised by their structure
  • D07B2201/2059—Cores characterised by their structure comprising wires
  • D07B2201/2061—Cores characterised by their structure comprising wires resulting in a twisted structure
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B2201/00—Ropes or cables
  • D07B2201/20—Rope or cable components
  • D07B2201/2047—Cores
  • D07B2201/2052—Cores characterised by their structure
  • D07B2201/2065—Cores characterised by their structure comprising a coating
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B2201/00—Ropes or cables
  • D07B2201/20—Rope or cable components
  • D07B2201/2071—Spacers
  • D07B2201/2074—Spacers in radial direction

Definitions

• the present invention relates to an elevator rope having an outer layer covering body made of resin at the outer peripheral portion, and an elevator apparatus using the rope.
• Patent Document 1 Japanese Patent Laid-Open No. 2001-262482
• the present invention has been made in order to solve the above-described problems, and an elevator rope capable of improving the packaging density of the strands and the effective sectional area, and the use thereof.
• the purpose is to obtain an elevator apparatus.
• An elevator rope according to the present invention includes a core binding body in which a plurality of steel strands are twisted together, and a core binding core body made of resin and covering the core binding body.
• Each core rope tie-down body is made by twisting together multiple steel strands.
• the core rope child binding assembly that is twisted around the core binding core as a core, and the core rope binding binding force that is the core rope binding force, the core rope sheathing body made of resin that covers the core rope binding binding assembly, and more
• An outer-layer-bound assembly composed of a plurality of outer-layer ties that are twisted around the outer periphery of the core rope covering body, each having an outer-layer tie-down body formed by twisting steel strands of It is provided with an outer layer covering made of a resin that covers the assembly.
• an elevator apparatus has a drive device main body and a drive sheave rotated by the drive device main body, and is strung over the drive device and the drive sheave arranged below the hoistway.
• the elevator rope with the drive sheave force is placed at the top of the hoistway and the car and the counterweight suspended in the hoistway by a 1: 1 roving method.
• Each elevator rope is equipped with a core tie body made by twisting a plurality of steel strands and a resin made of grease that covers the core tie body.
• a core tie having a core tie covering and a core rope tie main body formed by twisting a plurality of steel strands are respectively twisted around the core tie around the core tie.
• Each core rope has a core rope binding assembly, a core rope sheath covering the core rope binding assembly, and an outer layer binding body formed by twisting a plurality of steel strands.
• An outer layer binding assembly comprising a plurality of outer layer bindings twisted around the outer periphery of the rope covering body, and an outer layer coating made of resin covering the outer layer binding assembly, and having at least one The diameter of the return wheel is not more than 20 times the diameter of the elevator rope.
• FIG. 1 is a cross-sectional view of an elevator rope according to Embodiment 1 of the present invention.
• FIG. 2 is a side view showing the elevator rope of FIG. 1 broken for each layer.
• FIG. 3 is a cross-sectional view of an elevator rope according to Embodiment 2 of the present invention.
• FIG. 4 is a cross-sectional view of an elevator rope according to Embodiment 3 of the present invention.
• FIG. 5 is a cross-sectional view of an elevator rope according to Embodiment 4 of the present invention.
• FIG. 6 is a plan view showing an elevator apparatus according to Embodiment 5 of the present invention.
• FIG. 7 is a front view showing the elevator apparatus of FIG. 6.
• FIG. 1 is a cross-sectional view of an elevator rope according to Embodiment 1 of the present invention
• FIG. 2 is a side view of the elevator rope of FIG.
• the elevator rope has a core rope 1, an outer layer tie assembly 2 provided on the outer periphery of the core rope 1, and a resin outer layer cover 3 that covers the outer layer tie assembly 2.
• the core rope 1 includes a core core restraint 4, a core rope core restraint assembly 5 provided on the outer periphery of the core core restraint 4, and a core rope sheath body 6 made of resin that covers the core rope core restraint assembly 5.
• the core tie 4 has a core tie main body 7 in which a plurality of steel strands are twisted together, and a core binding tie cover 8 made of a resin covering the core tie main body 7.
• the core rope tying assembly 5 is composed of a plurality (six here) of core rope tying 9.
• each core rope tying 9 is composed only of a core rope tying body formed by twisting a plurality of steel strands.
• the core rope strap 9 is twisted around the core strap 4 with the core strap 4 as the center.
• the outer-layer child-bound assembly 2 is composed of a plurality (12 in this case) of outer-layer child-bound 10.
• each outer layer tie 10 is composed only of an outer layer tie main body formed by twisting a plurality of steel strands. Further, the outer layer tie 10 is twisted around the outer periphery of the core rope sheath 6.
• the core-bound cover 8 and the core rope cover 6 are made of, for example, polyethylene resin.
• the outer layer covering 3 is made of a high-friction resin material having a friction coefficient of 0.2 or more, for example, polyurethane resin.
• the cross-sectional structure of the core binding body 7 may be a force seal type that is a Warrington type (JIS G 3525), a Warrington seal type, or a filler type.
• the cross-sectional structures of the core tie body 7, the core rope tie body 8 (core rope tie body) and the outer layer child tie 9 (outer layer tie body) are the same as each other. Further, the core tie main body 7, the core rope tie 9 and the outer layer tie 10 are formed by parallel twisting steel strands into three or more layers.
• the rope diameter excluding the outer layer covering 3, that is, the outer diameter of the outer layer tying assembly 2, is 20 times or more the straight diameter of the steel wire.
• the diameters of all steel strands are the same as the applicable sheave, that is, this
• the diameter of the sheave (or pulley) around which the beta rope is wound is set to 1Z400 or less.
• the twisting direction of the outer layer child restraint 10 is opposite to the twisting direction of the core rope child restraint 9. Further, the twisting direction of the steel strands of the core restraint body 7 is also opposite to the twist direction of the core rope restraint 9.
• the mounting density of the steel strands can be improved and the effective cross-sectional area can be improved as compared with the conventional rope.
• the ties (main body) 7, 9, 10 of each layer are separated from each other by the coverings 8, 6, 3, it prevents wear of the steel wires that the steel wires cannot directly contact each other. it can.
• the buffering action of the coverings 8, 6, and 3 can alleviate the bending stress generated in the steel wire.
• the core tie main body 7, the core rope tie 9 and the outer layer tie 10 are formed by parallelly twisting steel strands into three or more layers, so that the steel strands are in line contact with each other. As a result, the gap between the strands is reduced, the mounting density of the steel strands can be further improved, and the wear damage of the steel strands can be further reduced.
• the diameter ⁇ of the steel strand of the outer layer tie 10 without complicating the outer layer tie 10 can be reduced.
• the relationship with the loop diameter d excluding the cover 3 can be dZ ⁇ 20, and the bending stress generated can be reduced.
• the diameter of the core rope 1 can be increased to some extent, it is possible to suppress a decrease in strength due to wear of the steel wire without causing the steel wire in the core rope 1 to become extremely thin.
• the diameters of all the steel strands are set to 1Z400 or less of the diameter of the sheave to be applied, a sufficient bending fatigue life can be secured.
• the rope diameter can be a minimum of 200 mm for a rope diameter of 10 mm. Therefore, it is possible to prolong the fatigue life or reduce the diameter of the sheave.
• the outer layer covering 3 is arranged on the outermost periphery, it is possible to prevent the sheave side from being worn, and the degree of freedom in selecting the strands of the outer layer strap 10 and the material of the sheave is increased. It can be improved. Therefore, the overall strength can be further increased, and the sheave can be configured at low cost.
• the outer covering 3 that contacts the driving sheave is made of a high-friction grease material, it is possible to ensure sufficient driving force transmission efficiency even if the diameter of the driving sheave is reduced. You can. Therefore, it is necessary to increase the weight of the car to increase the frictional force between the elevator rope and the drive sheave, or to add a guide wheel to increase the wrapping angle of the elevator rope around the sheave. There is no complication of the elevator system configuration.
• polyurethane resin is a force that can be freely selected from soft to hard.
• a hard polyurethane resin of 90 degrees or more. is there.
• ether-based rosin is preferred over estenore!
• the bending resistance can be reduced by selecting an elevator rope that is freely slippery when bent by a sheave. Can do.
• the core-bound cover 8 and the core rope cover 6 need to be hard enough not to be crushed between steel strands.
• a low friction and hard polyethylene material is suitable.
• the core-bound cover 8 and the core rope cover 6 do not require a large friction coefficient compared to the outer layer cover 3, and are not greatly bent by the sheave, so that they always have excellent stretch characteristics. Do not need. Accordingly, as a material for the core-bound cover 8 and the core rope cover 6, a resin such as nylon, silicon, polypropylene, or polychlorinated bur may be used.
• the core rope tie 9 includes a core rope tie body 11 in which a plurality of steel strands are twisted together, and a core rope tie cover body 12 made of resin that covers the core rope tie body 11. And have.
• the outer layer tie 10 includes an outer layer tie body 13 formed by twisting a plurality of steel strands, and an outer layer tie cover 14 made of resin that covers the outer layer tie body 13. Yes.
• the core rope tying covering 12 and the outer layer tying covering 14 are made of the same material as the core tying covering 8 and the core opening covering 6, for example, polyethylene resin. Other configurations are the same as those in the first embodiment.
• the coverings 8, 12, 1 4 are provided on the outer circumferences of all the ties 4, 9, 10; Can be more reliably prevented from coming into contact with each other, and wear and damage of the steel wire can be prevented.
• FIG. 4 is a cross-sectional view of an elevator rope according to Embodiment 3 of the present invention.
• the outer layer tie 10 is composed only of an outer layer tie itself formed by twisting a plurality of steel strands.
• the cross section of the steel wire is deformed by compressing the outer tie-down body from the outer periphery.
• Other configurations are the same as those in the second embodiment.
• cross-sectional structures of the ties 4, 9, and 10 in each layer may be different from each other.
• FIG. 5 is a cross-sectional view of an elevator rope according to Embodiment 4 of the present invention.
• the outer layer tie 10 is composed of only the outer layer tie main body formed by twisting a plurality of steel strands, as in the first embodiment. Further, in the core restraint body 7 and the core rope restraint body 11, the cross sections of the steel strands are deformed by compressing the restraint bodies 7 and 11 from the outer periphery. Other configurations are the same as those in the second embodiment.
• FIG. 6 is a plan view showing an elevator apparatus according to Embodiment 5 of the present invention
• FIG. 7 is a front view showing the elevator apparatus of FIG.
• a pair of car guide rails 22a, 22b and a pair of counterweight guide rails 23a, 23b are installed in the hoistway 21, a pair of car guide rails 22a, 22b and a pair of counterweight guide rails 23a, 23b are installed.
• the car 24 is raised and lowered in the hoistway 21 along the car guide rails 22a and 22b.
• the counterweight 25 is moved up and down in the hoistway 21 along the counterweight guide rails 23a and 23b.
• the counterweight 25 is arranged so as to face the back of the car 24 when it is located at the same height as the force car 24.
• a drive device 26 for raising and lowering the car 24 and the counterweight 25 is installed in the lower part of the hoistway 21.
• the drive device 26 includes a drive device body 27 including a motor and a drive sheave 28 rotated by the drive device body 27.
• the drive device 26 incorporates a brake (not shown) for braking the rotation of the drive sheave 28.
• a thin type hoisting machine having an axial dimension smaller than an outer diameter dimension in a direction perpendicular to the axial direction is used as the driving device 26 a thin type hoisting machine having an axial dimension smaller than an outer diameter dimension in a direction perpendicular to the axial direction is used.
• the driving device 26 is disposed between the side surface of the force 24 on the vertical projection plane and the hoistway wall 21a facing the side surface. Further, the drive device 26 is arranged so that the rotation shaft of the drive sheave 28 is parallel and horizontal to the width direction of the car 24.
• a main rope group 30 is wound around the drive sheave 28.
• the car 24 and the counterweight 25 are suspended in the hoistway 21 in a 1: 1 roving manner by the main rope group 30.
• the main rope group 30 includes a plurality of first elevator ropes 31 and a plurality of second elevator ropes 32. Each of the elevator ropes 31 and 32 has the same configuration as that of Embodiment 1!
• First and second rope connecting portions 33 and 34 are provided at the lower ends of the both ends in the width direction of the cage 24.
• Each first elevator rope 31 has a first end connected to the first rope connecting portion 33 and a second end connected to the upper portion of the counterweight 25.
• Each second elevator rope 32 has a third end connected to the second rope connecting portion 34 and a fourth end connected to the upper portion of the counterweight 25.
• the elevator ropes 31, 32 from the drive sheave 28 are led from the first to third car side return wheels 35-37 for guiding the elevator ropes 31, 32 to the force 24, and from the drive sheave 28.
• There is a counterweight return wheel 38 for guiding the elevator ropes 31, 32 to the counterweight 25.
• the first elevator rope 31 has the first end side force in the order of the first car side return wheel 35, the second car side return wheel 36, the drive sheave 28 and the counterweight side return wheel 38. It is wrapped around.
• the second elevator rope 32 is also wound around the third car side return wheel 37, the drive sheave 28, and the counterweight side return wheel 38 in the order of the third end side force. That is, the first and second elevator ropes 31 and 32 are distributed from the drive sheave 28 to the second and third car-side return wheels 36 and 37 that are not parallel to each other.
• the first and second car-side return wheels 35, 36 and the counterweight-side return wheel 38 are arranged so that their rotational axes are parallel and horizontal to the depth direction of the car 24.
• the third car side return wheel 37 is arranged such that its rotation shaft is parallel and horizontal to the width direction of the car 24.
• the return wheels 35-38 are arranged outside the area of the car 24 on the vertical projection plane, that is, arranged so as not to overlap the car 24.
• the diameter of at least one of the return wheels 35-38, here the return wheels 35, 36, is not more than 20 times the diameter of the elevator ropes 31, 32.
• the first and second rope connecting portions 33, 34 are arranged such that a straight line connecting them on the vertical projection plane passes through the center of gravity of the car 24 or the vicinity thereof. For this reason, the first rope connecting portion 33 is disposed behind the force guide rail 22a, and the second rope connecting portion 34 is disposed in front of the force guide rail 22b. As a result, the car 24 is suspended substantially at its center position.
• the diameter of the return wheels 35 to 38 can be reduced. Specifically, the diameters of the return wheels 35 and 36 can be reduced to about 20 times the diameter of the elevator ropes 31 and 32.
• the return wheels 35 and 36 can be arranged outside the area of the car 24 without increasing the area of the hoistway 21 on the vertical projection plane. Therefore, when the car 24 moves to the uppermost part in the hoistway 21, the upper space in the hoistway 21 can be reduced without the force car 24 interfering with the return wheels 35 and 36. Also reduce the diameter of the drive sheave 28 Therefore, the load torque acting on the driving device 26 can be reduced, and the small size of the driving device 26 can be achieved.

Landscapes

• Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
• Ropes Or Cables (AREA)

Priority Applications (4)

Applications Claiming Priority (1)

Publications (1)

Family

ID=36577718

Family Applications (1)

Country Status (4)

Cited By (7)

Families Citing this family (11)

Citations (8)

Family Cites Families (1)

• 2004
  • 2004-12-08 EP EP04822549A patent/EP1820765A4/de not_active Withdrawn
  • 2004-12-08 WO PCT/JP2004/018265 patent/WO2006061888A1/ja active Application Filing
  • 2004-12-08 JP JP2006546580A patent/JPWO2006061888A1/ja active Pending
  • 2004-12-08 CN CNA2004800411376A patent/CN1906109A/zh active Pending

Patent Citations (8)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events