Belt, belt manufacturing method and elevator

Abstract

The belt has multiple ropes and a rope sheath. When viewed in a cross-section perpendicular to the belt's length, the multiple ropes are spaced apart from each other in the width direction. The rope sheath covers the multiple ropes. Each rope has a core rope. Each core rope has a core fiber bundle consisting of one or more twisted high-strength fiber bundles, and multiple steel core wire components disposed around the outer periphery of the core fiber bundle.

Description

Technical Field

[0001] This invention relates to a belt, a method for manufacturing the belt, and an elevator. Background Technology

[0002] Conventional traction machine ropes have a load-bearing section and a polymer layer. The load-bearing section is covered with a polymer layer on its outer periphery. The load-bearing section is made of a composite material. The composite material includes multiple reinforcing fibers and a polymer matrix. Furthermore, the multiple reinforcing fibers are oriented parallel to the length direction of the rope. In addition, the multiple reinforcing fibers are bonded together by the polymer matrix (for example, see Patent Document 1).

[0003] Furthermore, conventional elevator systems use belts with multiple tensioning components. Each tensioning component has a core component, multiple overlapping components, and a jacket material. The core component is composed of multiple load-bearing fibers (see, for example, Patent Document 2).

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent No. 5713682

[0007] Patent Document 2: Japanese Patent Application Publication No. 2018-177535 Summary of the Invention

[0008] The problem that the invention aims to solve

[0009] In the conventional rope described in Patent Document 1, the outer periphery of the load-bearing portion is only covered with a polymer layer, and there is no binding force between the reinforcing fibers. Therefore, if the diameter of the load-bearing portion becomes larger, it is difficult to transfer the load to the vicinity of the center of the load-bearing portion, and it is difficult to make all the reinforcing fibers equally share the load.

[0010] In the belt described in Patent Document 2, multiple overlapping members are provided on the outer periphery of the core component. However, since the manufacturing method of the core component is the same as that in Patent Document 1, it is difficult to distribute the load equally among all the reinforcing fibers, just like the rope in Patent Document 1.

[0011] The present invention was made to solve the problems mentioned above, and its purpose is to obtain a belt, a method for manufacturing the belt, and an elevator that can distribute the load more evenly among high-strength fiber bundles.

[0012] Methods for solving problems

[0013] The belt of the present invention comprises: a plurality of ropes, which are arranged at intervals in the width direction when viewed in a cross section perpendicular to the length direction; and a rope covering body that covers the plurality of ropes, each of the plurality of ropes having a core rope, each core rope having: a core fiber bundle consisting of one or more twisted high-strength fiber bundles; and a plurality of steel core wire components disposed on the outer periphery of the core fiber bundle.

[0014] Invention Effects

[0015] The belt according to the present invention enables the high-strength fiber bundles to distribute the load more evenly. Attached Figure Description

[0016] Figure 1 This is a perspective view showing the elevator of Embodiment 1.

[0017] Figure 2 yes Figure 1 A sectional view of the band.

[0018] Figure 3 yes Figure 1 A cross-sectional view of the contact area between the drive pulley and the belt.

[0019] Figure 4 It is shown Figure 3 A cross-sectional view of a deformed example of the peak.

[0020] Figure 5 This is a cross-sectional view of embodiment 2.

[0021] Figure 6 It is shown in magnification Figure 5 A cross-sectional view of the rope.

[0022] Figure 7 This is a cross-sectional view of embodiment 3.

[0023] Figure 8 It is shown in magnification Figure 7 A cross-sectional view of the rope.

[0024] Figure 9 This is a cross-sectional view of embodiment 4.

[0025] Figure 10 It is shown in magnification Figure 9 A cross-sectional view of the rope.

[0026] Figure 11 This is a cross-sectional view of embodiment 5.

[0027] Figure 12 This is a cross-sectional view of embodiment 6.

[0028] Figure 13 This is a cross-sectional view of embodiment 7.

[0029] Figure 14 It is shown in magnification Figure 13 A cross-sectional view of the rope.

[0030] Figure 15 This is a cross-sectional view of embodiment 8.

[0031] Figure 16 This is a cross-sectional view of embodiment 9.

[0032] Figure 17 This is a cross-sectional view of the belt in embodiment 10.

[0033] Figure 18 This is an enlarged cross-sectional view showing the rope of the belt in Embodiment 11.

[0034] Figure 19 This is an enlarged cross-sectional view showing the rope of the belt in Embodiment 12.

[0035] Figure 20 It is to constitute Figure 19 The side view shows the multiple layers of the rope exposed.

[0036] Figure 21 It is shown Figure 20 A side view of the first example of yarn.

[0037] Figure 22 It is shown Figure 20 A side view of the second example of yarn.

[0038] Figure 23 This is an enlarged cross-sectional view showing the rope of the belt in Embodiment 13.

[0039] Figure 24 It is to constitute Figure 23 The side view shows the multiple layers of the rope exposed.

[0040] Figure 25 This is an enlarged cross-sectional view showing the rope of the belt in embodiment 14.

[0041] Figure 26 This is an enlarged cross-sectional view showing the rope of the belt in Embodiment 15.

[0042] Figure 27 This is an enlarged cross-sectional view showing the rope of the belt in Embodiment 16.

[0043] Figure 28 This is an enlarged cross-sectional view showing the rope of the belt in Embodiment 17.

[0044] Figure 29 This is a cross-sectional view of embodiment 18.

[0045] Figure 30 This is a cross-sectional view of the belt in embodiment 19. Detailed Implementation

[0046] Hereinafter, the embodiments will be described with reference to the accompanying drawings.

[0047] Implementation Method 1

[0048] Figure 1 This is a perspective view of the elevator according to Embodiment 1. In the figure, a machine room 2 is provided above the hoistway 1. A traction machine 3 and a deflector sheave 6 are provided in the machine room 2.

[0049] The traction machine 3 has a traction machine body 4 and a cylindrical drive rope sheave 5. The traction machine body 4 has a traction machine motor (not shown) and a traction mechanism brake (not shown). The traction machine motor rotates the drive rope sheave 5. The traction mechanism brake keeps the drive rope sheave 5 stationary. In addition, the traction mechanism brakes the rotation of the drive rope sheave 5.

[0050] The drive pulley 5 rotates around a horizontal axis. Two or more belts 7 are wound around the drive pulley 5 and the guide pulley 6. However, in... Figure 1 In the diagram, only one belt 7 is shown. Two or more belts 7 are arranged at intervals from each other in the axial direction of the drive pulley 5.

[0051] A car 8 is connected to the first end of the belt 7 along its length. A counterweight 9 is connected to the second end of the belt 7 along its length. The car 8 and the counterweight 9 are suspended within the hoistway 1 by the belt 7. That is, the belt 7 functions as a suspension body. Furthermore, the car 8 and the counterweight 9 move up and down within the hoistway 1 by rotating the drive sheave 5.

[0052] The hoistway 1 is equipped with a first car guide rail 10a, a second car guide rail 10b, a first counterweight guide rail (not shown), and a second counterweight guide rail (not shown). The first car guide rail 10a and the second car guide rail 10b guide the lifting and lowering of the car 8. The first counterweight guide rail and the second counterweight guide rail guide the lifting and lowering of the counterweight 9.

[0053] A compensator 11 is suspended between the lower part of the car 8 and the lower part of the counterweight 9. The compensator 11 compensates for the effects of changes in the weight balance of the belt 7 caused by the movement of the car 8. As the compensator 11, a flexible rope-like component, such as a rope or chain, is used.

[0054] Figure 2 yes Figure 1 A cross-sectional view of band 7 shows a section perpendicular to the length direction of band 7. The dimension of band 7 in the thickness direction is smaller than the dimension of band 7 in the width direction. The thickness direction of band 7 is perpendicular to the length direction of band 7. Figure 2 The direction parallel to the X-axis. The width direction of band 7 is parallel to... Figure 2The direction parallel to the Y-axis. The length direction of band 7 is parallel to... Figure 2 The direction parallel to the Z-axis.

[0055] When observing a cross-section perpendicular to the length direction of belt 7, belt 7 has multiple ropes 21 and a resin-made rope covering 22. Figure 2 In this configuration, 10 ropes 21 are used. The ropes 21 are arranged at equal intervals across the width of the belt 7. The ropes 21 function as strength components.

[0056] The rope cover 22 covers the entire group consisting of all the ropes 21. That is, the multiple ropes 21 are integrated by the rope cover 22.

[0057] An elastomer is used as the material for the rope covering 22. Furthermore, from the viewpoints of high friction resistance, wear resistance, and hydrolysis resistance, an ether-based thermoplastic polyurethane elastomer is preferred as the elastomer. Additionally, the rope covering 22 may contain a flame retardant. This makes the rope covering 22 non-flammable.

[0058] Multiple ropes 21 are arranged along the length direction of the belt 7. That is, the length direction of each rope 21 is the length direction of the belt 7. In addition, each rope 21 has a core rope 23. Each rope 21 in Embodiment 1 is composed only of the core rope 23.

[0059] Each core rope 23 has a core fiber bundle 24 and multiple steel core wire components 25. The cross-section of each core fiber bundle 24, that is, the cross-section perpendicular to the length direction of the rope body 21, is circular.

[0060] The core fiber bundle 24 consists of one or more twisted high-strength fiber bundles. Each high-strength fiber bundle is composed of multiple twisted high-strength fiber filaments.

[0061] As a material for high-strength fiber bundles, one or more fibers selected from the group consisting of carbon fiber, glass fiber, PBO (poly-p-phenylenebenzodioxazole) fiber, aramid fiber, polyarylate fiber and basalt fiber are used.

[0062] Multiple core wire components 25 are disposed on the outer periphery of the core fiber bundle 24. Furthermore, the multiple core wire components 25 are twisted around the outer periphery of the core fiber bundle 24. Figure 2 In this process, 12 core wire components 25 are used. Each core wire component 25 uses a single steel wire, i.e., a steel wire. The diameter of each core wire component 25 is smaller than the diameter of the core fiber bundle 24.

[0063] Figure 3 yes Figure 1A cross-sectional view of the contact portion between the drive pulley 5 and the belt 7. Two or more belts 7 are wound at intervals around the outer circumference of the drive pulley 5 along its axial direction. The axial direction of the drive pulley 5 is... Figure 3 The left and right directions. However, in Figure 3 Only one band 7 is shown in the image. Furthermore, in... Figure 3 The internal structure with the number 7 is omitted.

[0064] The drive pulley 5 has a number of grooves 5a that are the same number as the number of belts 7. Each belt 7 is inserted into its corresponding groove 5a.

[0065] The diameter of the portion of the drive pulley 5 that contacts each belt 7 varies such that the central portion of the belt 7 protrudes radially outward from the two ends of the belt 7 in the width direction. That is, a peak 5b, or crown, is formed on the bottom surface of each belt groove 5a. The radial direction of the drive pulley 5 is... Figure 3 The up and down directions.

[0066] Figure 4 It is shown Figure 3 A cross-sectional view of a deformed example of peak 5b. Figure 3 In the middle, the cross-section of the surface of peak 5b is a gently curving arc. In contrast, in... Figure 4 In the middle, the cross-section of the surface of the peak 5b is trapezoidal, that is, a combination of 3 straight lines.

[0067] In such a belt 7 and in the elevator using the belt 7, when a load is applied to the belt 7, the core fiber bundle 24 is constrained radially by multiple core wire components 25. Therefore, the high-strength fiber bundles constituting the core fiber bundle 24 can distribute the load more evenly.

[0068] Furthermore, since each core fiber bundle 24 is composed of high-strength fiber bundles, it is possible to achieve both lightweight and high strength of the belt 7, and thus achieve a belt 7 with a high strength-to-weight ratio.

[0069] Therefore, the belt 7 in Implementation 1 can also be applied to elevators with a car 8 having a lifting stroke of 75 meters or more.

[0070] Furthermore, compared to conventional wire ropes with the same strength, the belt 7 is easier to bend, thus enabling the drive pulley 5 to have a smaller diameter. For example, the diameter of the drive pulley 5 can be less than 40 times the maximum diameter of the multiple ropes 21. In addition, in Embodiment 1, the diameters of the multiple ropes 21 are all the same, and it can be said that the diameter of each rope 21 is the maximum diameter.

[0071] Furthermore, since a belt 7 with a high strength-to-weight ratio and a high coefficient of friction for the drive pulley 5 is obtained, the mass of the compensator 11 can be reduced. For example, the mass of the compensator 11 can be made less than half the total weight of the entire belt 7. In addition, the compensator 11 can be completely removed depending on the lifting stroke of the car 8.

[0072] In addition, each core wire component 25 consists of a single wire, thus making it easy to manufacture the band 7.

[0073] Furthermore, since a peak 5b is provided on the bottom surface of each groove 5a, the positional displacement of each belt 7 in the axial direction of the drive pulley 5 can be suppressed.

[0074] Furthermore, the manufacturing method of the belt 7 in Embodiment 1 includes the following steps: while applying uniform tension to all the ropes 21, the rope covering body 22 is continuously wrapped around all the ropes 21. As a result, when a load is applied to the belt 7, the load is distributed approximately evenly across all the ropes 21, thus preventing premature damage to a portion of the ropes 21.

[0075] Implementation Method 2

[0076] then, Figure 5 This is a cross-sectional view of belt 7 in Embodiment 2, showing a section perpendicular to the length direction of belt 7. Each core rope 23 in Embodiment 2 has a core fiber bundle 24 and multiple steel core strands 26 as multiple core wire components.

[0077] Multiple core strands 26 are disposed on the outer periphery of the core fiber bundle 24. Furthermore, the multiple core strands 26 are twisted around the outer periphery of the core fiber bundle 24. Figure 5 In this process, 12 core strands 26 are used. The diameter of each core strand 26 is smaller than the diameter of the core fiber bundle 24.

[0078] Figure 6 It is shown in magnification Figure 5 A cross-sectional view of the rope 21. Each core strand 26 comprises multiple steel core strands 27 twisted together. Specifically, each core strand 26 has one central core strand and six peripheral core strands.

[0079] The center core wire is the core wire 27 located at the center of the core strand 26. Each outer core wire is a core wire 27 twisted around the center core wire. All core wires 27 have the same diameter.

[0080] Except for the use of multiple core wires 26 instead of multiple core wire components 25, the structure of the belt 7 is the same as in Embodiment 1. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are also the same as in Embodiment 1.

[0081] The same effect as in embodiment 1 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0082] Furthermore, since multiple strands 26 are used instead of multiple core wire component 25, the flexibility of the strip 7 can be further improved.

[0083] Alternatively, the core wire component 25 of Embodiment 1 and the core strand 26 of Embodiment 2 may be mixed together on the outer periphery of the core fiber bundle 24.

[0084] Implementation Method 3

[0085] then, Figure 7 This is a cross-sectional view of the belt 7 in Embodiment 3, showing a section perpendicular to the length direction of the belt 7. Each rope body 21 in Embodiment 3 has a core rope 23, a first outer peripheral fiber layer 28, and a first strand layer 29.

[0086] The core cord 23 of embodiment 3 has a core fiber bundle 24 and six core strands 26. The six core strands 26 are twisted around the outer periphery of the core fiber bundle 24. The diameter of each core strand 26 is the same as or approximately the same as the diameter of the core fiber bundle 24.

[0087] The first outer peripheral fiber layer 28 is disposed on the outer periphery of the core rope 23. The first outer peripheral fiber layer 28 is composed of the same high-strength fiber bundle as the core fiber bundle 24. The cross-sectional shape of the first outer peripheral fiber layer 28, perpendicular to the length direction of the rope 21, is annular.

[0088] A first strand layer 29 is disposed on the outer periphery of the first outer peripheral fiber layer 28. Furthermore, the first strand layer 29 has a plurality of first outer layer strands 30. The plurality of first outer layer strands 30 are twisted to the outer periphery of the first outer peripheral fiber layer 28. Figure 7 In this process, 20 first outer layer strands 30 are used. That is, the number of first outer layer strands 30 is more than the number of core strands 26.

[0089] Figure 8 It is shown in magnification Figure 7 A cross-sectional view of the rope 21. Each first outer strand 30 includes multiple steel first outer strands 31 twisted together. Specifically, each first outer strand 30 has one first central strand and six first peripheral strands.

[0090] The first central single line is the first outer single line 31 located at the center of the first outer single line 30. Each first peripheral single line is a first outer single line 31 twisted around the periphery of the first central single line. All the first outer single lines 31 have the same diameter.

[0091] Furthermore, the diameter of each first outer layer single wire 31 is the same as the diameter of each core single wire 27. Additionally, the diameter of each first outer layer strand 30 is the same as the diameter of each core strand 26. That is, in this example, the same steel strands as the core strands 26 are used as the first outer layer strands 30.

[0092] Except for the fact that a first peripheral fiber layer 28 and a first strand layer 29 are provided on the outside of the core rope 23, the structure of the belt 7 is the same as in Embodiment 2. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in Embodiment 1.

[0093] The same effect as in embodiment 2 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0094] Furthermore, when a load is applied to the belt 7, the core fiber bundle 24 is constrained radially by multiple core strands 26. Additionally, the first outer peripheral fiber layer 28 is constrained radially by multiple first outer strands 30. Therefore, even with an increased diameter of each rope body 21, the load can be distributed more evenly among the high-strength fiber bundles included in the rope body 21.

[0095] Implementation Method 4

[0096] then, Figure 9 This is a cross-sectional view of the belt 7 in Embodiment 4, showing a section perpendicular to the length direction of the belt 7. Each rope body 21 in Embodiment 4 has a core rope 23, a first outer peripheral fiber layer 28, a first strand layer 29, a second outer peripheral fiber layer 32, and a second strand layer 33.

[0097] The second outer peripheral fiber layer 32 is disposed on the outer periphery of the first strand layer 29. The second outer peripheral fiber layer 32 is composed of the same high-strength fiber bundle as the core fiber bundle 24. The cross-sectional shape of the second outer peripheral fiber layer 32, perpendicular to the length direction of the rope body 21, is annular.

[0098] A second strand layer 33 is disposed on the outer periphery of the second outer peripheral fiber layer 32. Furthermore, the second strand layer 33 has a plurality of second outer layer strands 34. The plurality of second outer layer strands 34 are twisted to the outer periphery of the second outer peripheral fiber layer 32. Figure 9 In this case, 32 second outer layer stock lines 34 are used. That is, the number of second outer layer stock lines 34 is more than the number of first outer layer stock lines 30.

[0099] Figure 10 It is shown in magnification Figure 9 A cross-sectional view of the rope 21. Each second outer strand 34 includes multiple steel second outer strands 35 twisted together. Specifically, each second outer strand 34 has one second central strand and six second peripheral strands.

[0100] The second center single line is the second outer single line 35 located at the center of the second outer single line 34. Each second outer single line is a second outer single line 35 twisted around the outer periphery of the second center single line. All the second outer single lines 35 have the same diameter.

[0101] Furthermore, the diameter of each second outer layer single wire 35 is the same as the diameter of each core single wire 27, and also the same as the diameter of each first outer layer single wire 31. Additionally, the diameter of each second outer layer strand 34 is the same as the diameter of each core strand 26, and also the same as the diameter of each first outer layer strand 30. That is, in this example, the same steel strands as the core strands 26 and the first outer layer strands 30 are used as the second outer layer strands 34.

[0102] Except for the fact that a second peripheral fiber layer 32 and a second fiber layer 33 are provided on the outside of the first fiber layer 29, the structure of the belt 7 is the same as in Embodiment 3. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in Embodiment 1.

[0103] The same effect as in embodiment 3 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0104] Furthermore, when a load is applied to the belt 7, the second outer peripheral fiber layer 32 is constrained radially by multiple second outer strands 34. Therefore, even if the diameter of each rope 21 is further increased, the high-strength fiber bundles included in the rope 21 can distribute the load more evenly.

[0105] Alternatively, steel strands with different structures and diameters can be used as the core strand 26, the first outer strand 30, and the second outer strand 34.

[0106] In addition, three or more layers of high-strength fiber bundles and three or more layers of strands can be provided on the outside of the core rope 23.

[0107] Implementation Method 5

[0108] then, Figure 11 This is a cross-sectional view of the belt 7 in Embodiment 5, showing a section perpendicular to the length direction of the belt 7. A steel centerline member 36 is provided at the center of each core fiber bundle 24. Each centerline member 36 uses a single steel wire. The centerline members 36 are arranged continuously along the length direction of the rope 21.

[0109] Each core rope 23 in embodiment 5 has a core fiber bundle 24, multiple core wire components 25, and a center wire component 36. In this example, the same steel wire as each core wire component 25 is used as the center wire component 36.

[0110] Except for the fact that a centerline component 36 is provided at the center of each core fiber bundle 24, the structure of the belt 7 is the same as in Embodiment 1. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are also the same as in Embodiment 1.

[0111] The same effect as in embodiment 1 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0112] Furthermore, a centerline member 36 is provided at the center of each core fiber bundle 24, so when forming the core fiber bundle 24, the core fiber bundle 24 can be arranged around the centerline member 36 as the center. As a result, it is easy to make the cross-sectional shape of the core fiber bundle 24 circular, and it is easy to make the cross-sectional shape of the rope 21 circular.

[0113] Alternatively, the center wire component 36 can also be a steel wire with a diameter different from that of each core wire component 25.

[0114] Implementation Method 6

[0115] then, Figure 12 This is a cross-sectional view of belt 7 according to Embodiment 6, showing a section perpendicular to the length direction of belt 7. Belt 7 of Embodiment 6 is identical to belt 7 of Embodiment 2, except that a centerline member 36 is provided at the center of each core fiber bundle 24. Each centerline member 36 is the same as the centerline member 36 of Embodiment 5. Furthermore, the manufacturing method of belt 7 and the structure of the elevator are the same as in Embodiment 1.

[0116] The same effect as in embodiment 5 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0117] Furthermore, the use of multiple core strands 26 further enhances the flexibility of the band 7.

[0118] Implementation Method 7

[0119] then, Figure 13 This is a cross-sectional view of the belt 7 in Embodiment 7, showing a section perpendicular to the length direction of the belt 7. A steel center strand 37, serving as a centerline component, is provided at the center of each core fiber bundle 24 in Embodiment 7. Each center strand 37 is continuously arranged along the length direction of the rope body 21.

[0120] Figure 14 It is shown in magnification Figure 13 A cross-sectional view of the rope 21. Each center strand 37 comprises multiple steel center strands 38 twisted together. Specifically, each center strand 37 has one third center strand and six third outer circumferential strands.

[0121] The third central single line is the central single line 38 positioned at the center of the central single line 37. Each third peripheral single line is a central single line 38 twisted around the periphery of the third central single line. All the central single lines 38 have the same diameter.

[0122] Furthermore, the diameter of each center strand 38 is the same as the diameter of each core strand 27. Additionally, the diameter of each center strand 37 is the same as the diameter of each core strand 26. That is, in this example, the same steel strands as the core strands 26 are used as the center strands 37.

[0123] The belt 7 of Embodiment 7 is the same as that of Embodiment 6, except that a central strand 37 is provided at the center of each core fiber bundle 24. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as those of Embodiment 1.

[0124] The same effect as in embodiment 6 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0125] Furthermore, since a center strand 37 is used instead of a center strand component 36 made of steel wire, the flexibility of the belt 7 can be further improved.

[0126] Implementation Method 8

[0127] then, Figure 15 This is a cross-sectional view of the belt 7 in Embodiment 8, showing a section perpendicular to the length direction of the belt 7. In each rope body 21 of Embodiment 8, a center strand 37, the same as in Embodiment 7, is provided at the center of the core fiber bundle 24 of Embodiment 3. Each center strand 37 is arranged continuously along the length direction of the rope body 21.

[0128] Furthermore, in each core rope 23 of Embodiment 8, 12 core strands 26 are used. Additionally, in the first strand layer 29 of Embodiment 8, 24 first outer strands 30 are used.

[0129] Except for the fact that a central strand 37 is provided at the center of each core fiber bundle 24, the number of core strands 26, and the number of first outer layer strands 30, the structure of the belt 7 is the same as in embodiment 3. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in embodiment 1.

[0130] The same effect as in embodiment 3 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0131] Furthermore, when forming the core fiber bundle 24, the core fiber bundle 24 can be arranged around the center strand 37. As a result, it is easy to make the cross-sectional shape of the core fiber bundle 24 circular, and it is easy to make the cross-sectional shape of the rope 21 circular.

[0132] Furthermore, since the center strand 37 is used as each center strand component, the flexibility of the belt 7 can be further improved.

[0133] Implementation Method 9

[0134] then, Figure 16 This is a cross-sectional view of the belt 7 in Embodiment 9, showing a section perpendicular to the length direction of the belt 7. In each rope body 21 of Embodiment 9, a center strand 37, the same as in Embodiment 7, is provided at the center of the core fiber bundle 24 of Embodiment 4. Each center strand 37 is arranged continuously along the length direction of the rope body 21.

[0135] Furthermore, in each core rope 23 of Embodiment 9, eight core strands 26 are used. Additionally, in the second strand layer 33 of Embodiment 9, 28 second outer strands 34 are used.

[0136] Except for the fact that a central strand 37 is provided at the center of each core fiber bundle 24, the number of core strands 26, and the number of second outer layer strands 34, the structure of the belt 7 is the same as in embodiment 4. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in embodiment 1.

[0137] The same effect as in embodiment 4 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0138] Furthermore, when forming the core fiber bundle 24, the core fiber bundle 24 can be arranged around the center strand 37. As a result, it is easy to make the cross-sectional shape of the core fiber bundle 24 circular, and it is easy to make the cross-sectional shape of the rope 21 circular.

[0139] Furthermore, since the center strand 37 is used as each center strand component, the flexibility of the belt 7 can be further improved.

[0140] Alternatively, three or more layers of high-strength fiber bundles and three or more layers of strands can be provided on the outside of the core rope 23.

[0141] Implementation Method 10

[0142] then, Figure 17 This is a cross-sectional view of the belt 7 in Embodiment 10, showing a section perpendicular to the length direction of the belt 7. In each rope 21 of Embodiment 10, a core resin layer 39 is sandwiched between the core fiber bundle 24 and the layers of multiple core wire components 25.

[0143] As the material for the core resin layer 39, a resin with high wear resistance and low friction is used, such as polyethylene or polypropylene.

[0144] Except for the fact that a core resin layer 39 is provided on the outer periphery of the core fiber bundle 24, the structure of the belt 7 is the same as in Embodiment 1. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are also the same as in Embodiment 1.

[0145] The same effect as in embodiment 1 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0146] Furthermore, since a core resin layer 39 is provided at the boundary between the core fiber bundle 24 and the multiple core wire components 25, wear of the core fiber bundle 24 caused by contact with the multiple core wire components 25 can be suppressed.

[0147] Alternatively, in embodiments 2 to 9, a core resin layer 39 may be provided on the outer periphery of the core fiber bundle 24.

[0148] Furthermore, in embodiments 3, 4, 8, and 9, a first peripheral resin layer identical to the core resin layer 39 may also be provided on the outer periphery of the first peripheral fiber layer 28.

[0149] Furthermore, in embodiments 4 and 9, a second peripheral resin layer identical to the core resin layer 39 may also be provided on the outer periphery of the second peripheral fiber layer 32.

[0150] Implementation Method 11

[0151] then, Figure 18 This is an enlarged cross-sectional view showing the rope body 21 of the belt 7 in embodiment 11. The overall cross-section of the belt 7 is similar to... Figure 13 same.

[0152] In embodiment 11, a central fiber core 40 is provided at the center of each central strand 37. Furthermore, a strand fiber core 41 is provided at the center of each core strand 26. Each central fiber core 40 and each strand fiber core 41 is composed of a high-strength fiber bundle identical to the core fiber bundle 24.

[0153] Each central strand 37 has a central fiber core 40 and six central strand individual strands 38. The six central strand individual strands 38 are twisted around the outer periphery of the central fiber core 40.

[0154] Each core strand 26 has a fiber core 41 and six single core strands 27. The six single core strands 27 are twisted around the outer periphery of the fiber core 41.

[0155] Except for the structures of each central strand 37 and each core strand 26, the structure of the belt 7 is the same as in embodiment 7. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in embodiment 1.

[0156] The same effect as in embodiment 7 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0157] Furthermore, a central fiber core 40 is provided at the center of each central strand 37. Additionally, a strand fiber core 41 is provided at the center of each core strand 26. Therefore, weight reduction of the strip 7 can be achieved. Furthermore, an improvement in the strength-to-weight ratio can be achieved.

[0158] Alternatively, the fiber core 41 need not be provided on all the core strands 26. That is, the fiber core 41 only needs to be provided on at least one core strand 26.

[0159] In addition, in embodiments 2 to 4, 6, 8 and 9, a strand fiber core 41 may be provided at the center of at least one core strand 26.

[0160] In addition, in embodiments 3, 4, 8, and 9, a first outer fiber core composed of a high-strength fiber bundle may be provided at the center of at least one first outer strand 30.

[0161] In addition, in embodiments 4 and 9, a second outer fiber core composed of a high-strength fiber bundle may be provided at the center of at least one second outer strand 34.

[0162] In addition, in embodiments 8 and 9, a central fiber core 40 may be provided at the center of the central strand 37.

[0163] Furthermore, when the fiber core is provided at the center of the strands, a core resin layer identical to the core resin layer 39 of Embodiment 10 can be sandwiched between the resin layer and the layers of multiple strands around it. This can suppress wear of the fiber core.

[0164] Implementation Method 12

[0165] then, Figure 19 This is an enlarged cross-sectional view showing the rope body 21 of the belt 7 in embodiment 12. The overall cross-section of the belt 7 is similar to... Figure 7 They are roughly the same.

[0166] In each core rope 23 of embodiment 12, 12 core strands 26 are used. In each first strand layer 29, 8 first outer strands 30 are used. The diameter of each core strand 26 is smaller than the diameter of each first outer strand 30. The number of core strands 26 is greater than the number of first outer strands 30.

[0167] Each first outer layer stock line 30 consists of 19 first outer layer single lines 31. Specifically, each first outer layer stock line 30 has 1 first central single line, 9 first intermediate single lines, and 9 first peripheral single lines.

[0168] The first central single line is the first outer single line 31 located at the center of the first outer single line 30. Each first intermediate single line is the first outer single line 31 twisted around the first central single line. Each first peripheral single line is the first outer single line 31 twisted around the periphery of the layer of 9 first intermediate single lines.

[0169] The diameter of each first intermediate single wire is smaller than the diameter of the first center single wire and smaller than the diameter of the first outer single wire. The diameter of all core single wires 27 is smaller than the diameter of any first outer single wire 31.

[0170] The high-strength fiber bundles constituting the core fiber bundle 24 and the high-strength fiber bundles constituting the first outer peripheral fiber layer 28 are formed by bundling multiple yarns 50 together. The diameter of each yarn 50 is approximately 1 mm.

[0171] Figure 20 It is to constitute Figure 19 The side view shows the multiple layers of the rope 21 exposed. Multiple yarns 50 are arranged parallel to the length direction of the rope 21.

[0172] Figure 21 It is shown Figure 20 Side view of the first example of yarn 50. Figure 22 It is shown Figure 20 The second example is a side view of the yarn 50. Each yarn 50 is composed of multiple high-strength fiber filaments 51 bundled together. The high-strength fiber filament 51 is the smallest unit of high-strength fiber. The diameter of each high-strength fiber filament 51 is several μm to tens of μm.

[0173] In the first example, multiple high-strength fiber filaments 51 are arranged parallel to the length direction of the rope body 21. In the second example, multiple high-strength fiber filaments 51 are twisted together.

[0174] Apart from Figure 19 Except for the cross-sectional structure of each rope 21 shown, the structure of the belt 7 is the same as in Embodiment 3. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in Embodiment 1.

[0175] The same effect as in embodiment 3 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0176] Furthermore, since the high-strength fiber bundle is formed by binding multiple yarns 50 together, the core fiber bundle 24 and the first outer peripheral fiber layer 28 can be manufactured more easily compared to the case where multiple high-strength fiber filaments 51 that are not bound into yarns 50 are processed.

[0177] Furthermore, multiple yarns 50 are arranged parallel to the length direction of the rope 21. As a result, the overall elastic modulus of the belt 7 in the length direction is increased, which can suppress the elongation of the belt 7.

[0178] However, if the belt 7 bends, the compressive stress is applied to the yarn 50 on the inside of the bending direction, which is closer to the center of the cross-section of the rope 21, and the load cannot be evenly applied to the entire high-strength fiber bundle. Therefore, the belt 7 of Embodiment 12 is effective when the rope 21 is relatively thin. Furthermore, the belt 7 of Embodiment 12 is preferably applied to elevators where the ratio of the diameter D of the drive pulley 5 to the diameter d of the rope 21, i.e., the bending radius ratio D / d, is large.

[0179] Furthermore, when multiple high-strength fiber filaments 51 are arranged parallel to the length direction of the rope body 21, as in the first example, the effect of acting as a high-strength fiber bundle can be maximized.

[0180] On the other hand, in the case of twisting multiple high-strength fiber filaments 51 as in the second example, it is not necessary to make the multiple high-strength fiber filaments 51 the same length, and yarn 50 can be easily manufactured.

[0181] Implementation Method 13

[0182] then, Figure 23 This is an enlarged cross-sectional view showing the rope 21 with 7 in embodiment 13. Figure 24 It is to constitute Figure 23 The side view shows the multiple layers of the rope 21 exposed. In embodiment 13, multiple yarns 50 are each twisted together.

[0183] Furthermore, the core fiber bundle 24 and the first outer peripheral fiber layer 28 are composed of multiple high-strength fiber strands 52. Each high-strength fiber strand 52 is formed by twisting multiple yarns 50 together.

[0184] exist Figure 23 In this structure, the first outer peripheral fiber layer 28 is composed of eight high-strength fiber strands 52. Furthermore, the core fiber bundle 24 is composed of one high-strength fiber strand 52.

[0185] Except for the fact that the high-strength fiber bundle is formed by bundling multiple yarns 50 and that the multiple yarns 50 are twisted together, the structure of the belt 7 is the same as in Embodiment 3. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in Embodiment 1.

[0186] The same effect as in embodiment 3 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0187] Furthermore, since the high-strength fiber bundle is formed by bundling multiple yarns 50 together, it is easy to manufacture the core fiber bundle 24 and the first peripheral fiber layer 28.

[0188] Furthermore, the multiple yarns 50 are twisted together, thus reducing the compressive stress generated in the high-strength fiber bundle. As a result, even when using materials with relatively weak compression resistance, damage to each high-strength fiber filament 51 can be suppressed as a material for the high-strength fiber bundle.

[0189] Furthermore, the high-strength fiber bundle constituting the core fiber bundle 24 and the first outer peripheral fiber layer 28 is composed of multiple high-strength fiber strands 52. In this way, by twisting the multiple yarns 50 together, the high-strength fiber strands 52 can share the load as a whole.

[0190] Furthermore, by twisting multiple yarns 50 together, even if there are splices of yarns 50 midway along the length of the high-strength fiber strands 52, the overall strength of the rope 21 can be ensured. Therefore, the yarns 50 do not need to be continuously connected along the entire length of the rope 21, reducing the manufacturing cost of the yarns 50. That is, within each high-strength fiber strand 52, multiple splices can be present to join adjacent yarns 50 along the length of the high-strength fiber strand 52.

[0191] Furthermore, in embodiments 12 and 13, each yarn 50 is preferably molded using yarn resin. This makes the processing of the yarn 50 easier.

[0192] As a method for molding using yarn resin, the following method can be cited: impregnating the bundle of multiple high-strength fiber filaments 51 with yarn resin and molding it into a circular cross-section. Alternatively, the following method can be cited: coating the outer periphery of the bundle of multiple high-strength fiber filaments 51 with yarn resin and molding it into a circular cross-section.

[0193] To ensure the flexibility of each rope 21 and the overall flexibility of the belt 7, a flexible resin is preferably used as the yarn resin. Epoxy resin or polyurethane resin is preferred as the flexible resin. These flexible resins are not damaged when subjected to external forces and can be easily bent.

[0194] Epoxy resin, used as a yarn resin, is a solid formed by mixing and curing a liquid main agent with an additive. The main agent is selected from the group consisting of epoxy compounds and epoxidized polybutadiene. The epoxy compound molecule contains one or more bonds selected from the group consisting of polyoxyethylene bonds and urethane bonds, and two or more epoxy groups. The epoxidized polybutadiene molecule contains two or more epoxy groups.

[0195] When using polyurethane resin as the yarn resin, ether-based polyurethane resins are preferred from the viewpoint of hydrolysis resistance. Examples of ether-based polyurethane resins include resins formed by curing ether polyols with various polyisocyanate compounds. Examples of ether polyols include polytetramethylene ether glycol and polypropylene glycol.

[0196] By using such epoxy or polyurethane resins, the yarn 50 can be easily shaped into a circular shape. Furthermore, it improves the adhesion to the high-strength fiber filament 51. Additionally, it ensures sufficient flexibility after curing.

[0197] Alternatively, only a portion of the multiple yarns 50 may be molded using yarn resin. That is, it is sufficient that at least one yarn 50 is molded using yarn resin.

[0198] Implementation Method 14

[0199] then, Figure 25 This is an enlarged cross-sectional view showing the rope 21 with belt 7 in Embodiment 14. In Embodiment 14, the outer periphery of each high-strength fiber strand 52 is covered by a resin strand covering 53. As the material of the strand covering 53, a resin with high wear resistance and low friction is used, such as polyethylene or polypropylene.

[0200] Except that the outer periphery of each high-strength fiber strand 52 is covered by a resin-made strand covering 53, the structure of the belt 7 is the same as in Embodiment 13. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in Embodiment 1.

[0201] The same effect as in embodiment 13 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0202] Furthermore, since the outer periphery of each high-strength fiber strand 52 is covered by a resin-made strand covering 53, wear of each high-strength fiber strand 52 can be suppressed.

[0203] Alternatively, the strand covering 53 can be provided only for a portion of the multiple high-strength fiber strands 52. That is, it is sufficient that at least one high-strength fiber strand 52 is covered by the strand covering 53.

[0204] Implementation Method 15

[0205] then, Figure 26 This is an enlarged cross-sectional view showing the rope body 21 with belt 7 in Embodiment 15. In Embodiment 15, each high-strength fiber strand 52 is compressed from the outer periphery. As a result, the shape of the cross section of each high-strength fiber strand 52 perpendicular to the length direction is irregularized to become circular.

[0206] Furthermore, the multiple high-strength fiber strands 52 constituting the first outer peripheral fiber layer 28 are uniformly covered by strand coverings 53. Strand coverings 53 are not provided on the high-strength fiber strands 52 constituting the core fiber bundle 24.

[0207] Apart from Figure 26Except for the cross-sectional structure of each rope 21 shown, the structure of the belt 7 is the same as in Embodiment 14. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in Embodiment 1.

[0208] The same effect as in embodiment 14 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0209] Furthermore, since the cross-sectional shape of each high-strength fiber strand 52 is irregularized to become circular, the filling density of the high-strength fiber can be increased.

[0210] Alternatively, only a portion of the high-strength fiber strands 52 may have their cross-sectional shape modified to a circular shape. That is, it is sufficient that at least one high-strength fiber strand 52 has its cross-sectional shape modified to a circular shape.

[0211] Implementation Method 16

[0212] then, Figure 27 This is an enlarged cross-sectional view showing the rope body 21 with belt 7 in Embodiment 16. In Embodiment 16, each of the first outer strands 30 is compressed from the outer periphery. As a result, the shape of the cross section of each of the first outer strands 30 perpendicular to the length direction is irregularized to become circular.

[0213] In each core rope 23 of embodiment 16, 12 core strands 26 are used. In each first strand layer 29, 20 first outer strands 30 are used. The diameter of each core strand 26 is smaller than the diameter of each first outer strand 30.

[0214] Each first outer layer strand 30 is composed of 19 first outer layer single strands 31, similar to that in embodiment 12. Specifically, each first outer layer strand 30 has 1 first center single strand, 9 first middle single strands, and 9 first peripheral single strands.

[0215] Apart from Figure 27 Except for the cross-sectional structure of each rope 21 shown, the structure of the belt 7 is the same as in Embodiment 3. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in Embodiment 1.

[0216] The same effect as in embodiment 3 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0217] Furthermore, since the cross-sectional shape of each first outer layer strand 30 is irregularly shaped to become circular, the contact surface pressure of each first outer layer strand 30 relative to the first outer peripheral fiber layer 28 decreases. This suppresses damage to the first outer peripheral fiber layer 28.

[0218] Alternatively, only a portion of the first outer strands 30 may have their cross-sectional shape modified to a circular shape. That is, it is sufficient that at least one first outer strand 30 has its cross-sectional shape modified to a circular shape.

[0219] In addition, in embodiments other than embodiment 3 that include multiple first outer strands 30, the cross-sectional shape of at least one first outer strand 30 may be irregularized to become circular.

[0220] Implementation Method 17

[0221] then, Figure 28 This is an enlarged cross-sectional view showing the rope body 21 with belt 7 in Embodiment 17. In Embodiment 17, each core strand 26 is compressed from the outer periphery. As a result, the shape of the cross section of each core strand 26 perpendicular to the length direction is irregularized to become circular.

[0222] Apart from Figure 28 Except for the cross-sectional structure of each rope 21 shown, the structure of the belt 7 is the same as in Embodiment 16. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in Embodiment 1.

[0223] The same effect as in embodiment 16 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0224] Furthermore, the cross-sectional shape of each core strand 26 is irregularly shaped to be circular, thus reducing the contact surface pressure of each core strand 26 relative to the first outer peripheral fiber layer 28. Additionally, the contact surface pressure of each core strand 26 relative to the core fiber bundle 24 also decreases. Therefore, damage to the first outer peripheral fiber layer 28 and the core fiber bundle 24 can be suppressed.

[0225] Alternatively, only a portion of the core strands 26 may have their cross-sectional shape modified to be circular. That is, it is sufficient if at least one core strand 26 has its cross-sectional shape modified to be circular.

[0226] In addition, in embodiments other than embodiment 16 that include multiple core strands 26, the cross-sectional shape of at least one core strand 26 may be irregularized to become circular.

[0227] In addition, in embodiments that include multiple second outer strands 34, the cross-sectional shape of at least one second outer strand 34 may be irregularized to become circular.

[0228] In addition, in embodiments that include multiple center strands 37, the cross-sectional shape of at least one center strand 37 may be irregularized to become circular.

[0229] Implementation Method 18

[0230] then, Figure 29 This is a cross-sectional view of the belt 7 in Embodiment 18, showing a section perpendicular to the length direction of the belt 7. In the belt 7 of Embodiment 18, the multiple ropes 21 include two or more ropes 21 with different cross-sections. Different cross-sections mean that at least one of the diameter of the cross-section and the cross-sectional structure is different. In this example, the multiple ropes 21 include two ropes 21 with different diameters.

[0231] Specifically, the diameter of each of the four ropes 21 located at both ends of the width direction of the belt 7 is smaller than the diameter of each of the six ropes 21 located at the center of the width direction of the belt 7.

[0232] Except for the inclusion of two types of ropes 21 with different diameters, the structure of the belt 7 is the same as in embodiment 11. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in embodiment 1.

[0233] The same effect as in embodiment 11 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0234] In addition, such as Figure 3 and Figure 4 As shown, when the belt 7 is wound around the drive pulley 5 with the peak 5b, the tension applied to each of the multiple ropes 21 varies depending on the position of the belt 7 in the width direction. In this case, ropes 21 with different cross-sections can also be arranged according to the position of the belt 7 in the width direction. As a result, the load distribution of each rope 21 can be made equal.

[0235] Alternatively, there may be multiple ropes 21, including three or more ropes 21 with different diameters.

[0236] Alternatively, various ropes 21 selected from embodiments 1 to 17 can be combined and arranged in a common belt 7.

[0237] Implementation Method 19

[0238] then, Figure 30 This is a cross-sectional view of the belt 7 in Embodiment 19, showing a section perpendicular to the length direction of the belt 7. The belt 7 in Embodiment 19 has 8 ropes 21.

[0239] Eight ropes 21 are sequentially designated as the first rope, the second rope, ..., the eighth rope, starting from one end of the width direction of the belt 7 and moving towards the other. The intervals between the second and third ropes, and between the sixth and seventh ropes, are larger than the intervals between the other adjacent ropes 21. That is, the intervals between adjacent ropes 21 in the width direction of the belt 7 include two distinct intervals.

[0240] Thus, when the belt 7 includes three or more ropes 21, the spacing between adjacent ropes 21 can also include a variety of different spacings.

[0241] Except for the change in the spacing between adjacent ropes 21, the structure of the belt 7 is the same as in embodiment 11. Furthermore, the manufacturing method of the belt 7 and the structure of the elevator are the same as in embodiment 1.

[0242] The same effect as in embodiment 11 can be achieved by using such a belt 7 and the elevator that uses the belt 7.

[0243] Furthermore, by changing the spacing between adjacent ropes 21, even when the belt 7 is wound around the drive pulley 5 which has a peak 5b, the load distribution of each rope 21 can be made equal.

[0244] In addition, the spacing between adjacent ropes 21 may include more than three different types of spacing.

[0245] Alternatively, multiple ropes 21 with different cross-sections can be combined and arranged within a common belt 7, and the spacing between adjacent ropes 21 can be varied. That is, embodiments 18 and 19 can also be combined for implementation.

[0246] Furthermore, in embodiments 1 to 19, at least a portion of the steel components included in the multiple ropes 21 may be plated. For example, the core wire component 25 may be plated. Additionally, the individual wires constituting the core strand 26, the first outer strand 30, the second outer strand 34, and the center strand 37 may be plated. This suppresses corrosion of the steel components.

[0247] Furthermore, the high-strength fiber bundles formed by bundling multiple yarns 50 as shown in Embodiments 12 to 15 can also be applied to the high-strength fiber bundles of Embodiments 1 to 11 and 16 to 19.

[0248] Furthermore, in each embodiment, the number of ropes 21 is not particularly limited. Also, in each embodiment, the amount of high-strength fibers, the number of core wire components, the number of strands, and the number of individual wires constituting the strands are not particularly limited.

[0249] In addition, the belt 7 may also include strength components other than the rope 21 shown in embodiments 1 to 19.

[0250] Furthermore, the type of elevator is not limited to Figure 1 The type can also be, for example, a 2:1 rope winding method.

[0251] In addition, elevators can also be machine-room-less elevators, double-decker elevators, and single-shaft multi-car elevators. A single-shaft multi-car elevator is one in which the upper car and the lower car, located directly below the upper car, move independently within a common shaft.

[0252] Furthermore, in embodiments 1 to 19, belt 7 is used as a suspension body for the elevator car 8. However, the use of belt 7 is not limited to this. For example, belt 7 can also be used as a speed governor rope or compensator for an elevator. In addition, belt 7 can also be used in devices other than elevators, such as crane devices.

[0253] Label Explanation

[0254] 3: Traction machine; 5: Drive rope pulley; 7: Belt; 8: Car; 9: Counterweight; 11: Compensator; 21: Rope; 22: Rope sheath; 23: Core rope; 24: Core fiber bundle; 25: Core wire component; 26: Core strand (core wire component); 27: Core monofilament; 28: First outer peripheral fiber layer; 29: First strand layer; 30: First outer layer strand; 31: First outer layer monofilament; 32: Second outer peripheral fiber layer; 33: Second strand layer; 34: Second outer layer strand; 35: Second outer layer monofilament; 36: Center wire component; 37: Center strand (center wire component); 38: Center strand monofilament; 39: Core resin layer; 40: Center fiber core; 41: Strand fiber core; 50: Yarn; 52: High-strength fiber strand; 53: Strand sheath.

Claims

1. A belt having: Multiple ropes, when viewed in a cross-section perpendicular to the length direction, are arranged at intervals in the width direction; and A rope covering that covers the plurality of ropes. Each of the multiple ropes has a core rope. Each of the described core ropes has: A core fiber bundle, which consists of one or more twisted high-strength fiber bundles; and Multiple steel core wire components are arranged on the outer periphery of the core fiber bundle. in, The high-strength fiber bundle is formed by binding multiple yarns together. At least one of the yarns is formed using yarn resin molding.

2. The belt according to claim 1, wherein, Each of the multiple yarns is arranged parallel to the length direction of the rope.

3. The belt according to claim 1, wherein, The multiple yarns are each twisted together.

4. A belt that possesses: Multiple ropes, when viewed in a cross-section perpendicular to the length direction, are arranged at intervals in the width direction; and A rope covering that covers the plurality of ropes. Each of the multiple ropes has a core rope. Each of the described core ropes has: A core fiber bundle, which consists of one or more twisted high-strength fiber bundles; and Multiple steel core wire components are arranged on the outer periphery of the core fiber bundle. in, The high-strength fiber bundle is composed of multiple high-strength fiber strands. Each of the aforementioned high-strength fiber strands is formed by twisting multiple yarns together. At least one of the yarns is formed using yarn resin molding.

5. The belt according to claim 4, wherein, Each of the high-strength fiber strands contains a plurality of joints that join adjacent yarns along the length of the high-strength fiber strand.

6. The belt according to claim 4, wherein, At least one of the high-strength fiber strands is covered by a resin-based strand coating.

7. The belt according to claim 5, wherein, At least one of the high-strength fiber strands is covered by a resin-based strand coating.

8. The belt according to claim 4, wherein, The shape of the cross section perpendicular to the length direction of at least one of the high-strength fiber strands is deformed into a circle.

9. The belt according to claim 5, wherein, The shape of the cross section perpendicular to the length direction of at least one of the high-strength fiber strands is deformed into a circle.

10. The belt according to claim 6, wherein, The shape of the cross section perpendicular to the length direction of at least one of the high-strength fiber strands is deformed into a circle.

11. The belt according to claim 7, wherein, The shape of the cross section perpendicular to the length direction of at least one of the high-strength fiber strands is deformed into a circle.

12. The strip according to any one of claims 1 to 11, in, At least one of the ropes has: A first peripheral fiber layer, disposed around the periphery of the core rope, is composed of high-strength fiber bundles; and The first thread layer is disposed on the outer periphery of the first peripheral fiber layer. The first layer of strands has multiple outer strands. Each of the first outer strands comprises multiple steel first outer strands twisted together.

13. The belt according to claim 12, wherein, The shape of the cross section perpendicular to the length direction of at least one of the first outer strands is deformed into a circle.

14. The belt according to claim 12, wherein, The at least one rope body has: A second peripheral fiber layer, disposed on the periphery of the first strand layer, is composed of high-strength fiber bundles; and The second strand layer is disposed on the outer periphery of the second peripheral fiber layer. The second layer of strands has multiple outer strands. Each of the second outer strands comprises multiple steel second outer strands twisted together.

15. The belt according to claim 13, wherein, The at least one rope body has: A second peripheral fiber layer, disposed on the periphery of the first strand layer, is composed of high-strength fiber bundles; and The second strand layer is disposed on the outer periphery of the second peripheral fiber layer. The second layer of strands has multiple outer strands. Each of the second outer strands comprises multiple steel second outer strands twisted together.

16. The strip according to claim 14, wherein, The shape of the cross section perpendicular to the length direction of at least one of the second outer strands is deformed into a circle.

17. The belt according to claim 15, wherein, The shape of the cross section perpendicular to the length direction of at least one of the second outer strands is deformed into a circle.

18. The strip according to any one of claims 1 to 11, wherein, At least one of the core wire components is a core strand wire. The core strands consist of multiple steel core strands twisted together.

19. The belt according to claim 18, wherein, At least one of the core strands has a strand fiber core composed of a high-strength fiber bundle disposed at its center.

20. The belt according to claim 18, wherein, The shape of the cross section perpendicular to the length direction of at least one of the core strands is deformed into a circle.

21. The belt according to claim 19, wherein, The shape of the cross section perpendicular to the length direction of at least one of the core strands is deformed into a circle.

22. The strip according to any one of claims 1 to 11, wherein, Each of the core ropes also has a steel centerline component disposed at the center of the core fiber bundle.

23. The belt according to claim 22, wherein, Each of the aforementioned centerline components is a center strand. Each center strand consists of multiple steel center strands twisted together.

24. The belt according to claim 23, wherein, A central fiber core composed of high-strength fiber bundles is provided at the center of the central strand.

25. The strip according to any one of claims 1 to 11, wherein, Each of the core cords also has a core resin layer between the core fiber bundle and the plurality of core wire components.

26. The strip according to any one of claims 1 to 11, wherein, A flexible resin is used as the yarn resin. Epoxy resin or polyurethane resin is used as the flexible resin.

27. The strip according to any one of claims 1 to 11, wherein, Epoxy resin is used as the yarn resin. The epoxy resin is a solid formed by mixing and curing a liquid main agent with an additive. The main agent is selected from the group consisting of epoxy compounds and epoxidized polybutadiene. The molecule of the epoxy compound contains one or more bonds selected from the group consisting of polyoxyethylene bonds and urethane bonds, and two or more epoxy groups. The epoxidized polybutadiene contains more than two epoxy groups in its molecule.

28. The strip according to any one of claims 1 to 11, wherein, The high-strength fiber bundle uses one or more fibers selected from the group consisting of carbon fiber, glass fiber, poly(p-phenylenebenzodioxazole) fiber, aromatic polyamide fiber, polyarylate fiber and basalt fiber as the material.

29. The strip according to any one of claims 1 to 11, wherein, The rope covering is made of an elastomer.

30. The belt according to claim 29, wherein, The rope covering contains a flame retardant.

31. The strip according to any one of claims 1 to 11, wherein, At least a portion of the steel components comprising the plurality of ropes was plated.

32. The strip according to any one of claims 1 to 11, wherein, The multiple ropes include two or more types of ropes with different cross-sections.

33. The strip according to any one of claims 1 to 11, wherein, The multiple ropes include three or more ropes. The spacing between adjacent ropes includes a variety of different spacings.

34. A method for manufacturing a belt, comprising the method for manufacturing a belt as described in any one of claims 1 to 33. The method for manufacturing the belt includes the following steps: under a state in which uniform tension is applied to the plurality of ropes, the rope covering body is continuously wrapped around the plurality of ropes.

35. An elevator, comprising: The car; and The strip according to any one of claims 1 to 33.

36. The elevator according to claim 35, wherein, The car is suspended by the belt.

37. The elevator according to claim 36, wherein, The elevator also features a traction machine with drive pulleys. Two or more of the belts are wound around the outer circumference of the drive sheave at intervals along its axial direction.

38. The elevator according to claim 37, wherein, The diameter of the portion of the drive pulley that contacts each of the belts varies such that the central portion of the belt in the width direction protrudes radially outward from the drive pulley compared to both ends of the belt in the width direction.

39. The elevator according to claim 37, wherein, The diameter of the drive pulley is less than 40 times the maximum diameter of the plurality of ropes.

40. The elevator according to claim 38, wherein, The diameter of the drive pulley is less than 40 times the maximum diameter of the plurality of ropes.

41. The elevator according to any one of claims 37 to 40, wherein, The elevator also features: Counterweight, which is suspended by the belt; and The compensator is suspended between the car and the counterweight. The total weight of the compensator is less than half the total weight of all the belts.

42. The elevator according to any one of claims 37 to 40, wherein, The lifting distance of the car is over 75 meters.

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