JP7749508B2 - elevator - Google Patents

Description

This disclosure relates to an elevator equipped with a cable suspension device that suspends a cable.

Patent Document 1 discloses an elevator. The elevator includes a car, a support member, a control panel, a cable, and a cable suspension device. The control panel is fixed within the hoistway by the support member. One end of the cable is connected to the control panel. The other end of the cable is connected to the car. The cable suspension device includes a base, a first clamping member, and a second clamping member. The first clamping member is fixed to the support member via the base. The second clamping member is fixed to the second clamping member by a plurality of bolts. The cable is clamped between the first clamping member and the second clamping member by the fastening force of the bolts.

Japanese Patent Application Laid-Open No. 2004-262611

In the above elevator, to secure the cable to the cable suspension device, it is necessary to fasten the second clamping member and the first clamping member together with multiple bolts while pressing the cable against the first clamping member with the second clamping member. This poses the problem of making the process of securing the cable to the cable suspension device complicated.

This disclosure has been made to solve the above-mentioned problems, and aims to provide an elevator that makes it easy to secure the cable to the cable suspension device.

The elevator according to the present disclosure comprises a car that ascends and descends in a hoistway, a control panel fixed to the hoistway, a cable connecting the car and the control panel, and a cable suspension device fixed to at least one of the car and the hoistway and suspending the cable. The cable suspension device has a first pillar-shaped member, a second pillar-shaped member arranged below the first pillar-shaped member, a third pillar-shaped member arranged below the second pillar-shaped member, a first support member that supports one end of each of the first pillar-shaped member, the second pillar-shaped member, and the third pillar-shaped member, and a second support member that supports the other end of each of the first pillar-shaped member, the second pillar-shaped member, and the third pillar-shaped member. The first and third pillars each extend in a direction intersecting the vertical direction, the first and third pillars are in contact with a first surface of the cable, and the second pillar is in contact with a second surface of the cable opposite the first surface. The cable is bent along the first, second, and third pillars, respectively, and a pressing force is applied to the cable by the second pillar. When viewed along the extension direction of the second pillar, the contact point between the second pillar and the cable is located on the side of the pressing force relative to a straight line passing through the contact point between the first pillar and the cable and the contact point between the third pillar and the cable.

This disclosure makes it easy to secure a cable to a cable suspension device.

1 is a diagram showing the overall configuration of an elevator according to a first embodiment; 1 is a diagram showing the overall configuration of an elevator according to a first embodiment; 1 is a front view showing the configuration of an elevator cable suspension device according to a first embodiment. FIG. 1 is a side view showing the configuration of an elevator cable suspension device according to a first embodiment. FIG. 1 is a diagram showing a method of fixing a cable to a cable suspension device of an elevator according to embodiment 1. FIG. FIG. 10 is a side view showing the configuration of an elevator cable suspension device according to a second embodiment. 10A and 10B are diagrams showing a method of fixing a cable to an elevator cable suspension device according to the second embodiment. FIG. 11 is a side view showing the configuration of an elevator cable suspension device according to a third embodiment. 10A and 10B are diagrams showing a method of fixing a cable to an elevator cable suspension device according to the third embodiment. FIG. 10 is a side view showing the configuration of an elevator cable suspension device according to a fourth embodiment. FIG. 10 is a side view showing the configuration of an elevator cable suspension device according to embodiment 5. 10A and 10B are diagrams showing a method of fixing a cable to an elevator cable suspension device according to embodiment 5. 10A and 10B are diagrams showing a method of fixing a cable to an elevator cable suspension device according to embodiment 5. FIG. 13 is a side view showing the configuration of an elevator cable suspension device according to a sixth embodiment. 13A and 13B are diagrams showing a method of fixing a cable to an elevator cable suspension device according to a sixth embodiment. FIG. 13 is a side view showing the configuration of an elevator cable suspension device according to embodiment 7. 13A and 13B are diagrams showing a method of fixing a cable to an elevator cable suspension device according to embodiment 7. FIG. 13 is a side view showing the configuration of an elevator cable suspension device according to embodiment 8. A side view showing the configuration of an elevator cable suspension device related to embodiment 9. A side view showing the configuration of an elevator cable suspension device related to embodiment 10. An oblique view showing the configuration of a second pillar-shaped member in an elevator cable suspension device according to embodiment 10. An exploded oblique view showing the configuration of a second pillar-shaped member in an elevator cable suspension device according to embodiment 10. A diagram showing a method of fixing a cable to an elevator cable suspension device in embodiment 10. FIG. 20 is a perspective view showing the configuration of an elevator cable suspension device according to an eleventh embodiment. 12 is an exploded perspective view showing the configuration of an elevator cable suspension device according to embodiment 11. FIG. A cross-sectional view showing the configuration of an elevator cable suspension device related to embodiment 12. A diagram showing a method of fixing a cable to an elevator cable suspension device in embodiment 12. A cross-sectional view showing the configuration of an elevator cable suspension device related to embodiment 13. A diagram showing a method of fixing a cable to an elevator cable suspension device in embodiment 13. A front view showing the configuration of an elevator cable suspension device related to embodiment 14. A front view showing the configuration of the second pillar-shaped member in the elevator cable suspension device of embodiment 14. A front view showing the configuration of the second pillar-shaped member in the elevator cable suspension device of embodiment 14.

Embodiment 1.
An elevator according to the first embodiment will be described. Figures 1 and 2 are diagrams showing the overall configuration of the elevator according to the present embodiment. The up and down directions in Figures 1 and 2 represent the vertical up and down direction. Figure 1 shows the configuration of the elevator when the car 11 is located at the top of the hoistway 10. Figure 2 shows the configuration of the elevator when the car 11 is located at the bottom of the hoistway 10.

As shown in Figures 1 and 2, a car 11 is provided in the elevator shaft 10. The car 11 is configured to move up and down the elevator shaft 10. The elevator shaft 10 is guided by car guide rails (not shown) as it moves up and down. A control panel 12 is fixed to the elevator shaft 10. The control panel 12 is configured to control the elevator shaft 10's movement up and down.

The control panel 12 and the car 11 are connected by a cable 13. The cable 13 is configured to supply power and transmit signals between the control panel 12 and the car 11. The cable 13 is flexible.

One end of the cable 13 is connected to the control panel 12 via a cable hoisting device 14. The cable hoisting device 14 is fixed to the hoistway 10. The cable hoisting device 14 may be fixed to the hoistway 10 via another member, such as a member that supports the control panel 12. The cable hoisting device 14 is located below the control panel 12. The cable 13 is suspended by the cable hoisting device 14.

The other end of cable 13 is connected to car 11 via cable suspension device 15. Cable suspension device 15 is fixed to car 11. Cable suspension device 14 is located below car 11. Cable 13 is suspended by cable suspension device 15. The position of the other end of cable 13 moves in conjunction with the rise and fall of car 11. The weight of cable 13 is supported by cable suspension device 14 and cable suspension device 15.

The cable suspension device of this embodiment will be described below. The cable suspension device of this embodiment is applied to both the cable suspension device 14 on the control panel 12 side and the cable suspension device 15 on the car 11 side. The cable suspension device of this embodiment will be described below using the cable suspension device 14 as an example. Note that the cable suspension device of this embodiment may be applied to only one of the cable suspension device 14 and the cable suspension device 15.

Figure 3 is a front view showing the configuration of an elevator cable suspension device according to this embodiment. Figure 4 is a side view showing the configuration of an elevator cable suspension device according to this embodiment. The up and down directions in Figures 3 and 4 represent the vertical up and down directions. Figure 4 shows the configuration of the cable suspension device 14 when viewed along the extension directions of the first columnar member 21, the second columnar member 22, and the third columnar member 23.

As shown in Figures 3 and 4, the cable suspension device 14 has a first pillar member 21, a second pillar member 22, a third pillar member 23, a first support member 31, and a second support member 32. The cable 13 extends vertically overall.

The first columnar member 21, the second columnar member 22, and the third columnar member 23 each extend in a direction intersecting the vertical direction. In this embodiment, the first columnar member 21, the second columnar member 22, and the third columnar member 23 all extend horizontally and are arranged parallel to one another. The first columnar member 21, the second columnar member 22, and the third columnar member 23 are arranged side by side in the vertical direction.

The second columnar member 22 is positioned lower than the first columnar member 21. The third columnar member 23 is positioned even lower than the second columnar member 22. The second columnar member 22 is located between the first columnar member 21 and the third columnar member 23 in the vertical direction. A gap 24 is formed between the first columnar member 21 and the second columnar member 22. The cable 13 passes through the gap 24. The distance between the first columnar member 21 and the second columnar member 22 in the vertical direction is equal to or greater than the thickness of the cable 13. A gap 25 is formed between the second columnar member 22 and the third columnar member 23. The cable 13 passes through the gap 25. The distance between the second columnar member 22 and the third columnar member 23 in the vertical direction is equal to or greater than the thickness of the cable 13.

Each of the first columnar member 21, second columnar member 22, and third columnar member 23 has a columnar or cylindrical shape. That is, each of the first columnar member 21, second columnar member 22, and third columnar member 23 has a cylindrical outer surface. The first columnar member 21, second columnar member 22, and third columnar member 23 have the same diameter and extension length. For example, each of the first columnar member 21, second columnar member 22, and third columnar member 23 is formed from steel pipes, which are readily available and inexpensive.

A cylindrical shaft portion 21a is formed at one end of the first columnar member 21 in the extension direction. The shaft portion 21a has a diameter smaller than the diameter of the first columnar member 21. The shaft portion 21a protrudes from the first columnar member 21 along the central axis of the first columnar member 21. A cylindrical shaft portion 21b is formed at the other end of the first columnar member 21 in the extension direction. The shaft portion 21b has a diameter smaller than the diameter of the first columnar member 21. The shaft portion 21b protrudes from the first columnar member 21 along the central axis of the first columnar member 21. The shaft portions 21a and 21b are fixed to the first columnar member 21.

Similarly, a cylindrical shaft portion 22a is formed at one end of the second columnar member 22 in the extension direction. The shaft portion 22a has a diameter smaller than the diameter of the second columnar member 22. The shaft portion 22a protrudes from the second columnar member 22 along the central axis of the second columnar member 22. A cylindrical shaft portion 22b is formed at the other end of the second columnar member 22 in the extension direction. The shaft portion 22b has a diameter smaller than the diameter of the second columnar member 22. The shaft portion 22b protrudes from the second columnar member 22 along the central axis of the second columnar member 22. The shaft portions 22a and 22b are fixed to the second columnar member 22.

The first support member 31 and the second support member 32 each have a rectangular, flat plate shape that is long in the vertical direction. The first support member 31 and the second support member 32 are arranged opposite each other, sandwiching the first columnar member 21, the second columnar member 22, and the third columnar member 23 between them. The first support member 31 supports one end of each of the first columnar member 21, the second columnar member 22, and the third columnar member 23 in the extension direction. The second support member 32 supports the other end of each of the first columnar member 21, the second columnar member 22, and the third columnar member 23 in the extension direction.

The first support member 31 has holes 31a and 31b formed therein. The second support member 32 has holes 32a and 32b formed therein. Hole 32a is disposed opposite hole 31a. Hole 32b is disposed opposite hole 31b. Holes 31a, 31b, 32a, and 32b are all formed in a circular shape.

The shaft 21a is rotatably inserted into the hole 31a of the first support member 31. The shaft 21b is rotatably inserted into the hole 32a of the second support member 32. As a result, the first columnar member 21 is supported by the first support member 31 and the second support member 32 so as to be rotatable around the central axis of the first columnar member 21.

The shaft 22a is rotatably inserted into the hole 31b of the first support member 31. The shaft 22b is rotatably inserted into the hole 32b of the second support member 32. As a result, the second pillar 22 is supported by the first support member 31 and the second support member 32 so that it can rotate freely around the central axis of the second pillar 22. The second pillar 22 is attached by the cable 13 installation worker when fixing the cable 13 to the cable suspension device 14. In other words, the second pillar 22 can be attached to the first support member 31 and the second support member 32 later. The second pillar 22 may also be detachable from the first support member 31 and the second support member 32.

One end of the third columnar member 23 is fixed to the first support member 31 by welding or the like. The other end of the third columnar member 23 is fixed to the second support member 32 by welding or the like. As a result, the third columnar member 23 is supported by the first support member 31 and the second support member 32 so as not to rotate. In this way, at least one of the first columnar member 21, the second columnar member 22, and the third columnar member 23 is supported by the first support member 31 and the second support member 32 so as not to rotate.

Cable 13 is a flat cable having a flat cross-sectional shape. Cable 13 has a first surface 13a and a second surface 13b. Both first surface 13a and second surface 13b are surfaces along the width direction of cable 13. Second surface 13b is the surface opposite to the first surface. Cable 13 may also be a round cable having a circular cross-sectional shape.

In the front view shown in FIG. 3 , the cable 13 is located between the first support member 31 and the second support member 32, and overlaps with the first columnar member 21, the second columnar member 22, and the third columnar member 23. The outer peripheral surfaces of the first columnar member 21 and the third columnar member 23 are in contact with the first surface 13a of the cable 13. The outer peripheral surface of the second columnar member 22 is in contact with the second surface 13b of the cable 13. The cable 13 is pressed between the first columnar member 21 and the third columnar member 23 by the second columnar member 22. The cable 13 is bent along the outer peripheral surfaces of the first columnar member 21, the second columnar member 22, and the third columnar member 23.

A pressing force is applied to the cable 13 by each of the first columnar member 21, the second columnar member 22, and the third columnar member 23. The direction of the pressing force by the second columnar member 22 is to the right in FIG. 4. The direction of the pressing force by each of the first columnar member 21 and the third columnar member 23 is to the left in FIG. 4, which is opposite to the direction of the pressing force by the second columnar member 22. The cable 13 is curved so as to be convex in the direction of the pressing force by the second columnar member 22.

Here, the contact portion between the first columnar member 21 and the cable 13 is referred to as contact portion 41. The contact portion between the second columnar member 22 and the cable 13 is referred to as contact portion 42. The contact portion between the third columnar member 23 and the cable 13 is referred to as contact portion 43. The straight line passing through contact portion 41 and contact portion 43 is referred to as line 44. In a side view taken along the extension direction of the second columnar member 22, contact portion 42 is located closer to the direction of the pressing force of the second columnar member 22 acting on the cable 13 than line 44.

These pressing forces generate frictional forces between the first columnar member 21, the second columnar member 22, and the third columnar member and the cable 13. These frictional forces allow the cable suspension device 14 to support the vertical load of the cable 13.

Next, we will explain how to secure the cable 13 to the cable suspension device 14. Figure 5 is a diagram showing how to secure the cable to the cable suspension device of an elevator in this embodiment. As shown in Figure 5, the second pillar member 22 has not yet been attached to the cable suspension device 14 before the cable 13 is secured.

First, the cable 13 is sandwiched between the first and third pillars 21, 23, and the second pillar 22. The first and third pillars 21, 23 are located on the first surface 13a side of the cable 13. The second pillar 22 is located on the second surface 13b side of the cable 13.

Next, the second columnar member 22 is pushed together with the cable 13 between the first columnar member 21 and the third columnar member 23. In this embodiment, the first columnar member 21 and the second columnar member 22 are allowed to rotate, so the second columnar member 22 and the cable 13 are pushed between the first columnar member 21 and the third columnar member 23 with less force.

Next, with the second columnar member 22 and cable 13 pressed between the first columnar member 21 and the third columnar member 23, the shaft portion 22a is fitted into the hole 31b of the first support member 31, and the shaft portion 22b is fitted into the hole 32b of the second support member 32. This causes the second columnar member 22 to be supported by the first support member 31 and the second support member 32. Through the above procedure, the cable 13 is fixed to the cable suspension device 14 as shown in Figures 3 and 4.

As described above, the elevator according to this embodiment comprises a car 11, a control panel 12, a cable 13, and cable suspension devices 14 and 15. The car 11 is configured to move up and down the hoistway 10. The control panel 12 is fixed to the hoistway 10. The cable 13 connects the car 11 and the control panel 12. The cable suspension devices 14 and 15 suspend the cable 13. The cable suspension device 14 is fixed to the control panel 12. The cable suspension device 15 is fixed to the car 11.

Each of the cable suspension devices 14 and 15 has a first columnar member 21, a second columnar member 22, a third columnar member 23, a first support member 31, and a second support member 32. The second columnar member 22 is positioned lower than the first columnar member 21. The third columnar member 23 is positioned lower than the second columnar member 22. The first support member 31 supports one end of each of the first columnar member 21, the second columnar member 22, and the third columnar member 23. The second support member 32 supports the other end of each of the first columnar member 21, the second columnar member 22, and the third columnar member 23. Each of the first columnar member 21, the second columnar member 22, and the third columnar member 23 extends in a direction intersecting the vertical direction.

The first columnar member 21 and the third columnar member 23 are in contact with the first surface 13a of the cable 13. The second columnar member 22 is in contact with the second surface 13b of the cable 13, which is the surface of the cable 13 opposite the first surface 13a. The cable 13 is bent along each of the first columnar member 21, the second columnar member 22, and the third columnar member 23. A pressing force is applied to the cable 13 by the second columnar member 22. A line 44 is a straight line passing through the contact portion 41 between the first columnar member 21 and the cable 13 and the contact portion 43 between the third columnar member 23 and the cable 13. When viewed along the extension direction of the second columnar member 22, the contact portion 42 between the second columnar member 22 and the cable 13 is located closer to the direction of the pressing force by the second columnar member 22 than the line 44.

With this configuration, the cable 13 can be secured to each of the cable suspension devices 14 and 15 by using the second pillar member 22 to push the cable 13 between the first pillar member 21 and the third pillar member 23. This makes it easy to secure the cable 13 to each of the cable suspension devices 14 and 15.

In the elevator according to this embodiment, one or two of the first pillar member 21, the second pillar member 22, and the third pillar member 23 are rotatably supported by the first support member 31 and the second support member 32. This configuration allows the second pillar member 22 and the cable 13 to be pushed between the first pillar member 21 and the third pillar member 23 with less force. This makes it easier to secure the cable 13 to the cable suspension device 14 and the cable suspension device 15, respectively. Because at least one of the first pillar member 21, the second pillar member 22, and the third pillar member 23 does not rotate, the vertical load of the cable 13 can be supported by the cable suspension device.

In the elevator according to this embodiment, the first columnar member 21, the second columnar member 22, and the third columnar member 23 each have a cylindrical outer surface. This configuration prevents damage to the cable 13 due to contact with the first columnar member 21, the second columnar member 22, and the third columnar member 23. Furthermore, this configuration allows the first columnar member 21, the second columnar member 22, and the third columnar member 23 to be formed from steel pipes, which increases the availability of parts for the cable suspension device and reduces the manufacturing costs of the cable suspension device and the elevator including it.

Embodiment 2.
An elevator according to the second embodiment will now be described. Fig. 6 is a side view showing the configuration of a cable suspension device for an elevator according to the second embodiment. As shown in Fig. 6, no shafts are formed at either end of the first columnar member 21. One end of the first columnar member 21 is fixed to the first support member 31 by welding or the like. The other end of the first columnar member 21 is fixed to the second support member 32 by welding or the like. As a result, the first columnar member 21, like the third columnar member 23, is supported by the first support member 31 and the second support member 32 so as not to rotate. The remaining configuration is the same as that of the first embodiment.

Figure 7 is a diagram showing a method for securing a cable to an elevator cable suspension device according to this embodiment. As shown in Figure 7, in this embodiment, the cable 13 is secured to the cable suspension device 14 using the same procedure as in embodiment 1.

In this embodiment, the first pillar member 21 and the third pillar member 23 do not rotate, so the cable 13 can be fixed to the cable suspension device 14 more firmly than in embodiment 1.

Embodiment 3.
An elevator according to the third embodiment will now be described. Fig. 8 is a side view showing the configuration of an elevator cable suspension device according to the present embodiment. As shown in Fig. 8, the shaft portion 22b of the second pillar member 22 has a rectangular pillar shape. Although not shown, the shaft portion 22a of the second pillar member 22 also has a rectangular pillar shape. The hole 31b of the first support member 31 and the hole 32b of the second support member 32 are both formed in a rectangular shape. As a result, the second pillar member 22 is supported by the first support member 31 and the second support member 32 so as not to rotate. The other configurations are the same as those of the second embodiment.

Figure 9 is a diagram showing a method for securing a cable to an elevator cable suspension device according to this embodiment. As shown in Figure 9, in this embodiment, the cable 13 is secured to the cable suspension device 14 using the same procedure as in embodiment 1.

In this embodiment, the first columnar member 21, the third columnar member 23, and the second columnar member 22 do not rotate, so the cable 13 can be fixed to the cable suspension device 14 even more firmly than in embodiment 2.

Embodiment 4.
An elevator according to a fourth embodiment will now be described. Fig. 10 is a side view showing the configuration of a cable suspension device for an elevator according to this embodiment. As shown in Fig. 10, the parallel arrangement direction of the first pillar member 21, the second pillar member 22, and the third pillar member 23 is inclined from the vertical direction. In this way, the cable suspension device 14 may be arranged so that the parallel arrangement direction of the first pillar member 21, the second pillar member 22, and the third pillar member 23 is inclined from the vertical direction.

Embodiment 5.
An elevator according to a fifth embodiment will now be described. Fig. 11 is a side view showing the configuration of a cable suspension device for an elevator according to this embodiment. As shown in Fig. 11, no shafts are formed at either end of the second columnar member 22. One end of the second columnar member 22 is fixed to the first support member 31 by welding or the like. The other end of the second columnar member 22 is fixed to the second support member 32 by welding or the like. As a result, the second columnar member 22, like the third columnar member 23, is supported by the first support member 31 and the second support member 32 so as not to rotate.

The first pillar-shaped member 21 is rotatably supported by the first support member 31 and the second support member 32. The first pillar-shaped member 21 is attached by the cable 13 installation worker when securing the cable 13 to the cable suspension device 14. In other words, the first pillar-shaped member 21 can be attached to the first support member 31 and the second support member 32 later. The first pillar-shaped member 21 may also be detachable from the first support member 31 and the second support member 32. Other configurations are the same as in embodiment 1.

Figures 12 and 13 are diagrams showing a method for securing a cable to an elevator cable suspension device according to this embodiment. As shown in Figure 12, the first pillar member 21 has not yet been attached to the cable suspension device 14 before the cable 13 is secured thereto.

First, as shown in Figure 12, the cable 13 is passed through the gap 25 between the second pillar 22 and the third pillar 23. The third pillar 23 is located on the first surface 13a side of the cable 13. The second pillar 22 is located on the second surface 13b side of the cable 13.

Next, the cable suspension device 14 is rotated in the direction of the thick arrow in Figure 12 around an axis parallel to the extension direction of the second columnar member 22. As a result, the cable 13 is bent along the outer peripheral surfaces of the second columnar member 22 and the third columnar member 23, as shown in Figure 13. Next, the first columnar member 21 is attached. This secures the cable 13 to the cable suspension device 14, as in the configuration shown in Figure 11.

This embodiment eliminates the need for the step of pushing the second pillar member 22 together with the cable 13 between the first pillar member 21 and the third pillar member 23, so the cable 13 can be secured to the cable suspension device 14 with less force.

In this embodiment, the columnar member that is subsequently attached to the first support member 31 and the second support member 32 is the first columnar member 21, but the columnar member that is subsequently attached to the first support member 31 and the second support member 32 may also be the third columnar member 23. In other words, in this embodiment, the first columnar member 21 or the third columnar member 23 can be subsequently attached to the first support member 31 and the second support member 32.

Embodiment 6.
An elevator according to the sixth embodiment will now be described. FIG. 14 is a side view showing the configuration of a cable suspension device for an elevator according to the sixth embodiment. As shown in FIG. 14 , a notch 33 is formed in the second support member 32. The notch 33 has an open end 33a. The open end 33a is formed on an end face 32c of the second support member 32 that is located on the opposite side to the direction of the pressing force of the second pillar member 22 acting on the cable 13. The notch 33 extends obliquely downward from the open end 33a. The shaft portion 22b of the second pillar member 22 is inserted into the notch 33. The shaft portion 22b is located below the open end 33a of the notch 33. The remaining configuration is the same as that of the third embodiment.

In this embodiment, the notch 33 is formed in the second support member 32, but the notch may also be formed in the first support member 31, or in both the first support member 31 and the second support member 32.

Figure 15 is a diagram showing a method for securing a cable to an elevator cable suspension device according to this embodiment. As shown in Figure 15, the second pillar 22 has not yet been attached to the cable suspension device 14 before the cable 13 is secured thereto. When the second pillar 22, together with the cable 13, is pushed between the first pillar 21 and the third pillar 23, the shaft 22b is inserted into the notch 33 from the open end 33a and is guided by the notch 33.

As described above, in the elevator according to this embodiment, the second pillar member 22 has a shaft 22b protruding from the end of the second pillar member 22 in the extension direction. The second support member 32 has a notch 33 formed therein. The notch 33 has an open end 33a on the end face 32c opposite the direction of the pressing force of the second pillar member 22 acting on the cable 13. The notch 33 extends diagonally downward from the open end 33a. The shaft 22b is inserted into the notch 33. The shaft 22b is located below the open end 33a.

This configuration makes it less likely that the second pillar-shaped member 22 will fall off the cable suspension device 14, simplifying the mechanism for holding the second pillar-shaped member 22 to the cable suspension device 14.

In addition, with this configuration, the shaft portion 22b is guided by the notch 33, making it easy to push the second columnar member 22 between the first columnar member 21 and the third columnar member 23.

Embodiment 7.
An elevator according to embodiment 7 will now be described. Fig. 16 is a side view showing the configuration of an elevator cable suspension device according to this embodiment. As shown in Fig. 16, irregularities 26 are formed on the outer peripheral surface of the second pillar member 22. The irregularities 26 function as a friction force increasing portion that increases the friction force generated between the second pillar member 22 and the cable 13. The other configurations are the same as those of embodiment 2.

Figure 17 is a diagram showing a method for securing a cable to an elevator cable suspension device according to this embodiment. As shown in Figure 17, in this embodiment, the cable 13 is secured to the cable suspension device 14 using the same procedure as in embodiment 1. In this embodiment, the frictional force generated between the second columnar member 22 and the cable 13 is increased, allowing the cable 13 to be secured more firmly to the cable suspension device 14.

In this embodiment, irregularities 26 are formed as the frictional force increasing portion, but a rubber member may be wrapped around the outer peripheral surface of the second columnar member 22 as the frictional force increasing portion. Also, in this embodiment, a frictional force increasing portion is formed on the outer peripheral surface of the second columnar member 22, but the same effect can be achieved if a frictional force increasing portion is formed on the outer peripheral surface of any of the first columnar member 21, second columnar member 22, and third columnar member 23.

As described above, in the elevator according to this embodiment, a frictional force increasing portion is formed on at least one of the first pillar member 21, the second pillar member 22, and the third pillar member 23. This configuration increases the frictional force generated between the cable 13 and at least one of the first pillar member 21, the second pillar member 22, and the third pillar member 23, thereby enabling the cable 13 to be more firmly fixed to the cable suspension device 14.

Embodiment 8.
An elevator according to embodiment 8 will now be described. Fig. 18 is a side view showing the configuration of an elevator cable suspension device according to this embodiment. As shown in Fig. 18, each of the first columnar member 21, the second columnar member 22, and the third columnar member 23 has a partially cylindrical shape with a portion of the column missing. In each of the first columnar member 21, the second columnar member 22, and the third columnar member 23, the outer circumferential surface of the portion in contact with the cable 13 is formed into a cylindrical surface. The other configurations are the same as those in embodiment 2.

Embodiment 9.
An elevator according to a ninth embodiment will be described. Fig. 19 is a side view showing the configuration of a cable suspension device for an elevator according to this embodiment. As shown in Fig. 19, the first pillar 21 and the third pillar 23 are in a twisted position. The first pillar 21 and the second pillar 22 are in a twisted position. The third pillar 23 and the second pillar 22 are in a twisted position. In this way, the first pillar 21, the second pillar 22, and the third pillar 23 do not have to be arranged parallel to each other.

Embodiment 10.
An elevator according to a tenth embodiment will be described. Fig. 20 is a side view showing the configuration of an elevator cable suspension device according to this embodiment. Fig. 21 is a perspective view showing the configuration of a second pillar-shaped member in an elevator cable suspension device according to this embodiment. Fig. 22 is an exploded perspective view showing the configuration of a second pillar-shaped member in an elevator cable suspension device according to this embodiment.

As shown in Figures 20 to 22, a through-hole 22e is formed in the second columnar member 22. The through-hole 22e penetrates the second columnar member 22 along the extension direction of the second columnar member 22. The through-hole 22e is formed on the central axis of the second columnar member 22.

A shaft member 22d, which is a separate member from the second columnar member 22, is inserted into the through-hole 22e. The shaft member 22d is a member for fixing the second columnar member 22 to the first support member 31 and the second support member 32. The shaft member 22d has a cylindrical shape. The axial length of the shaft member 22d is longer than the extension length of the second columnar member 22.

The hole 31b of the first support member 31 is a through-hole that penetrates the first support member 31. The hole 32b of the second support member 32 is a through-hole that penetrates the second support member 32. The shaft member 22d penetrates the hole 31b of the first support member 31, the through-hole 22e of the second columnar member 22, and the hole 32b of the second support member 32. Split pins 27 are attached to both ends of the shaft member 22d. The split pins 27 prevent the shaft member 22d from coming off the first support member 31, the second columnar member 22, and the second support member 32. The other configurations are the same as in embodiment 2.

Figure 23 is a diagram showing a method for securing a cable to an elevator cable suspension device according to this embodiment. As shown in Figure 23, when securing the cable 13 to the cable suspension device 14, the second pillar member 22, together with the cable 13, is pushed between the first pillar member 21 and the third pillar member 23. Then, the position of the through hole 22e is aligned with the positions of the hole 31b of the first support member 31 and the hole 32b of the second support member 32. In this state, the shaft member 22d is passed through the hole 31b, the through hole 22e, and the hole 32b. This secures the second pillar member 22 to the first support member 31 and the second support member 32.

Then, split pins 27 or the like are attached to both ends of the shaft member 22d. This prevents the shaft member 22d from coming loose and also prevents the shaft member 22d from rotating. If rotation of the shaft member 22d relative to the second columnar member 22 is restricted, preventing rotation of the shaft member 22d also prevents rotation of the second columnar member 22.

As described above, in the elevator according to this embodiment, the first support member 31 has a through-hole 31b formed therein. The second support member 32 has a through-hole 32b formed therein. The second pillar member 22 has a through-hole 22e formed therein. The cable suspension device 14 further has a shaft member 22d. The shaft member 22d passes through the hole 31b of the first support member 31, the hole 32b of the second support member 32, and the through-hole 22e of the second pillar member 22.

This configuration prevents interference between the shaft member 22d and the first support member 31 and second support member 32 when the second columnar member 22 is pushed between the first columnar member 21 and the third columnar member 23. After the second columnar member 22 is pushed between the first columnar member 21 and the third columnar member 23, the second columnar member 22 can be easily fixed in place by the shaft member 22d.

Embodiment 11.
An elevator according to embodiment 11 will be described. Fig. 24 is a perspective view showing the configuration of a cable suspension device for an elevator according to this embodiment. Fig. 25 is an exploded perspective view showing the configuration of a cable suspension device for an elevator according to this embodiment. In Figs. 24 and 25, the first pillar-shaped member 21 and the third pillar-shaped member 23 are not shown.

As shown in Figures 24 and 25, a first fastening member 28a and a second fastening member 28b are used as shaft members for fixing the second columnar member 22. Each of the first fastening member 28a and the second fastening member 28b is a bolt or the like.

The hole 31b of the first support member 31 is a through-hole that penetrates the first support member 31. The hole 32b of the second support member 32 is a through-hole that penetrates the second support member 32. The first fastening member 28a fastens the first support member 31 to one end of the second columnar member 22 via the hole 31b. The second fastening member 28b fastens the second support member 32 to the other end of the second columnar member 22 via the hole 32b. The rest of the configuration is the same as in embodiment 10.

When securing the cable 13 to the cable suspension device 14, the second pillar member 22 is pushed between the first pillar member 21 and the third pillar member 23, and then the first support member 31 and the second pillar member 22 are fastened together by the first fastening member 28a, and the second support member 32 and the second pillar member 22 are fastened together by the second fastening member 28b.

As described above, in the elevator according to this embodiment, the first support member 31 has a through-hole 31b formed therein. The second support member 32 has a through-hole 32b formed therein. The cable suspension device 14 further includes a first fastening member 28a and a second fastening member 28b. The first fastening member 28a fastens the first support member 31 to one end of the second pillar member 22 via the hole 31b in the first support member 31. The second fastening member 28b fastens the second support member 32 to the other end of the second pillar member 22 via the hole 32b in the second support member 32.

This configuration prevents interference between the first fastening member 28a and the first support member 31, and between the second fastening member 28b and the second support member 32, when the second columnar member 22 is pushed between the first columnar member 21 and the third columnar member 23. After the second columnar member 22 is pushed between the first columnar member 21 and the third columnar member 23, the second columnar member 22 can be easily fixed by the first fastening member 28a and the second fastening member 28b.

Embodiment 12.
An elevator according to embodiment 12 will now be described. Fig. 26 is a cross-sectional view showing the configuration of a cable suspension device for an elevator according to this embodiment.

As shown in FIG. 26 , a rope-like member 29 is used as the shaft member for fixing the second columnar member 22. A through-hole 22e is formed in the second columnar member 22. The hole 32b of the second support member 32 is a through-hole that penetrates the second support member 32. The rope-like member 29 is passed through the through-hole 22e of the second columnar member 22 and the hole 32b of the second support member 32. One end of the rope-like member 29 is fixed to the first support member 31. The other end of the rope-like member 29 is pulled out from the hole 32b of the second support member 32 to the outside of the cable suspension device 14. The remaining configuration is the same as in embodiment 1, etc.

Figure 27 is a diagram showing a method for securing a cable to an elevator cable suspension device according to this embodiment. As shown in Figure 27, when securing the cable 13 to the cable suspension device 14, a rope-like member 29 is passed through the through-hole 22e of the second pillar member 22 and the hole 32b of the second support member 32, and the other end of the rope-like member 29 is pulled to the outside of the cable suspension device 14. When the other end of the rope-like member 29 is pulled in this state, the second pillar member 22, together with the cable 13, is pushed between the first pillar member 21 and the third pillar member 23. This makes it easy to secure the cable 13 to the cable suspension device 14.

As described above, in the elevator according to this embodiment, the cable suspension device 14 further includes a rope-like member 29. The rope-like member 29 is fixed to the first support member 31. The second support member 32 has a through-hole 32b formed therein. The second pillar member 22 has a through-hole 22e formed therein. The rope-like member 29 is passed through the through-hole 22e of the second pillar member 22 and the hole 32b of the second support member 32.

With this configuration, by pulling the other end of the rope-like member 29, the second pillar member 22, together with the cable 13, can be easily pushed between the first pillar member 21 and the third pillar member 23. Therefore, the cable 13 can be easily fixed to the cable suspension device 14.

Embodiment 13.
An elevator according to embodiment 13 will now be described. Fig. 28 is a cross-sectional view showing the configuration of a cable suspension device for an elevator according to this embodiment. The upper part of Fig. 28 shows the direction of the pressing force of the second pillar-shaped member 22 acting on the cable 13.

As shown in FIG. 28, the cable suspension device 14 has a first jack bolt 34a and a second jack bolt 34b. The first support member 31 has a bolt support portion 31d with a female thread. The first jack bolt 34a passes through the female thread of the bolt support portion 31d. This allows the first jack bolt 34a to be supported by the first support member 31. The tip of the first jack bolt 34a is pressed against the outer peripheral surface of one end of the second columnar member 22.

The second support member 32 has a bolt support portion 32d with a female thread formed therein. The second jack bolt 34b passes through the female thread of the bolt support portion 32d. This allows the second jack bolt 34b to be supported by the second support member 32. The tip of the second jack bolt 34b is pressed against the outer peripheral surface of the other end of the second columnar member 22.

One end of the second columnar member 22 is pressed by the first jack bolt 34a in the direction of the pressing force of the second columnar member 22 acting on the cable 13. The other end of the second columnar member 22 is pressed in the same direction by the second jack bolt 34b. This maintains the position of the second columnar member 22 in the direction of the pressing force. The rest of the configuration is the same as in embodiment 1, etc.

Figure 29 is a diagram showing a method for securing a cable to an elevator cable suspension device according to this embodiment. As shown in Figure 29, when securing the cable 13 to the cable suspension device 14, the first jack bolt 34a and the second jack bolt 34b are used to push the second pillar member 22 together with the cable 13 between the first pillar member 21 and the third pillar member 23. This makes it easy to secure the cable 13 to the cable suspension device 14.

As described above, in the elevator according to this embodiment, the cable suspension device 14 further includes a first jack bolt 34a and a second jack bolt 34b. The first jack bolt 34a is supported by the first support member 31. The second jack bolt 34b is supported by the second support member 32. One end of the second pillar member 22 is pressed by the first jack bolt 34a in the direction of the pressing force of the second pillar member 22 acting on the cable 13. The other end of the second pillar member 22 is pressed by the second jack bolt 34b in the direction of the pressing force of the second pillar member 22 acting on the cable 13.

With this configuration, by using the first jack bolt 34a and the second jack bolt 34b, the second columnar member 22 together with the cable 13 can be easily pushed between the first columnar member 21 and the third columnar member 23. Therefore, the cable 13 can be easily fixed to the cable suspension device 14.

Embodiment 14.
An elevator according to embodiment 14 will be described. Fig. 30 is a front view showing the configuration of an elevator cable suspension device according to this embodiment. Figs. 31 and 32 are cross-sectional views showing the configuration of a second pillar-shaped member in the elevator cable suspension device according to this embodiment.

As shown in Figures 30 to 32, a through-hole 22e is formed in the second columnar member 22. The through-hole 22e penetrates the second columnar member 22 along the extension direction of the second columnar member 22. The through-hole 22e is formed on the central axis of the second columnar member 22.

A first shaft portion 22f, a second shaft portion 22g, and an elastic body 30 are inserted into the through hole 22e. The elastic body 30 is sandwiched between the first shaft portion 22f and the second shaft portion 22g. The elastic body 30 is, for example, a compression coil spring. The first shaft portion 22f and the second shaft portion 22g are arranged to be movable along the through hole 22e. A force is applied by the elastic body 30 to each of the first shaft portion 22f and the second shaft portion 22g in a direction that causes them to protrude axially outward from the through hole 22e. A mechanism is provided inside the through hole 22e, as necessary, to restrict the range of movement of the first shaft portion 22f and the second shaft portion 22g.

As shown in FIG. 31, a portion of the first shaft portion 22f protrudes from one axial end face 22h of the second columnar member 22 and is fitted into the hole 31b of the first support member 31. A portion of the second shaft portion 22g protrudes from the other axial end face 22i of the second columnar member 22 and is fitted into the hole 32b of the second support member 32. When a force from the outside in the axial direction that resists the restoring force of the elastic body 30 is applied to the first shaft portion 22f and the second shaft portion 22g, the first shaft portion 22f and the second shaft portion 22g are accommodated inside the through-hole 22e as shown in FIG. 32.

When securing the cable 13 to the cable suspension device 14, the second columnar member 22, together with the cable 13, is pushed between the first columnar member 21 and the third columnar member 23. At this time, an axial force is applied to the first shaft portion 22f and the second shaft portion 22g from the outside, causing the first shaft portion 22f and the second shaft portion 22g to fit inside the through-hole 22e. This prevents interference between the first shaft portion 22f and the first support member 31 and between the second shaft portion 22g and the second support member 32. When the position of the first shaft portion 22f aligns with the position of the hole 31b, the first shaft portion 22f protrudes from the second columnar member 22 and fits into the hole 31b. When the position of the second shaft portion 22g aligns with the position of the hole 32b, the second shaft portion 22g protrudes from the second columnar member 22 and fits into the hole 32b. This allows the second columnar member 22 to be easily secured.

As described above, in the elevator according to this embodiment, a hole 31b is formed in the first support member 31. A hole 32b is formed in the second support member 32. A through hole 22e is formed in the second columnar member 22. A first shaft portion 22f, a second shaft portion 22g, and an elastic body 30 are inserted into the through hole 22e. The elastic body 30 is sandwiched between the first shaft portion 22f and the second shaft portion 22g. A portion of the first shaft portion 22f protrudes from the through hole 22e and is inserted into the hole 31b of the first support member 31. A portion of the second shaft portion 22g protrudes from the through hole 22e and is inserted into the hole 32b of the second support member 32.

With this configuration, the second columnar member 22 can be easily fixed to the first support member 31 and the second support member 32, making it easy to fix the cable 13 to the cable suspension device 14.

The above embodiments can be implemented in combination with each other.

The above describes preferred embodiments, etc., but the present invention is not limited to the above-described embodiments, etc., and various modifications and substitutions can be made to the above-described embodiments, etc., without departing from the scope of the claims.

The various aspects of this disclosure are summarized below as appendices.

(Appendix 1)
A car that goes up and down the elevator shaft,
a control panel fixed to the elevator shaft;
A cable connecting the car and the control panel;
a cable suspension device fixed to at least one of the car and the elevator shaft and suspending the cable;
Equipped with
The cable suspension device is
a first pillar-shaped member;
a second pillar member disposed below the first pillar member;
a third columnar member disposed below the second columnar member;
a first support member that supports one end of each of the first columnar member, the second columnar member, and the third columnar member;
a second support member that supports the other end of each of the first columnar member, the second columnar member, and the third columnar member;
It has
each of the first columnar member, the second columnar member, and the third columnar member extends in a direction intersecting with a vertical direction;
the first post and the third post are in contact with a first surface of the cable;
the second pillar-shaped member is in contact with a second surface of the cable, the second surface being the surface opposite to the first surface;
the cable is bent along each of the first pillar member, the second pillar member, and the third pillar member;
a pressing force is applied to the cable by the second pillar-shaped member,
An elevator in which, when viewed along the extension direction of the second pillar-shaped member, the contact point between the second pillar-shaped member and the cable is located on the side of the direction of the pressing force relative to a straight line passing through the contact point between the first pillar-shaped member and the cable and the contact point between the third pillar-shaped member and the cable.
(Appendix 2)
An elevator as described in Appendix 1, wherein one or two of the first pillar-shaped member, the second pillar-shaped member, and the third pillar-shaped member are rotatably supported by the first support member and the second support member.
(Appendix 3)
The elevator according to claim 1 or 2, wherein each of the first pillar-shaped member, the second pillar-shaped member, and the third pillar-shaped member has a cylindrical outer peripheral surface.
(Appendix 4)
An elevator according to any one of claims 1 to 3, wherein at least one of the first pillar member, the second pillar member, and the third pillar member has a frictional force increasing portion formed thereon.
(Appendix 5)
an axial portion protruding from the second columnar member is formed at an end portion of the second columnar member in the extension direction;
a notch having an open end formed on an end surface opposite to the direction of the pressing force in at least one of the first support member and the second support member;
The notch extends obliquely downward from the open end,
The shaft portion is inserted into the notch,
5. The elevator according to claim 1, wherein the shaft portion is located below the open end portion.
(Appendix 6)
a through hole is formed in each of the first support member and the second support member,
a through hole is formed in the second columnar member,
An elevator described in any one of Appendix 1 to Appendix 5, wherein the cable suspension device further has an axial member passing through a through hole of the first support member, a through hole of the second columnar member, and a through hole of the second support member.
(Appendix 7)
a through hole is formed in each of the first support member and the second support member,
The cable suspension device is
a first fastening member that fastens the first support member and one end of the second columnar member through a through hole of the first support member;
a second fastening member that fastens the second support member and the other end of the second columnar member through a through hole of the second support member;
6. The elevator according to any one of claims 1 to 5, further comprising:
(Appendix 8)
the cable suspension device further includes a cord-like member fixed to the first support member,
The second support member has a through hole formed therein,
a through hole is formed in the second columnar member,
An elevator described in any one of Appendix 1 to Appendix 5, wherein the cord-like member is passed through a through hole of the second columnar member and a through hole of the second support member.
(Appendix 9)
the cable suspension device further includes a first jack bolt supported by the first support member and a second jack bolt supported by the second support member,
one end of the second columnar member is pressed in the direction of the pressing force by the first jack bolt,
An elevator according to any one of claims 1 to 5, wherein the other end of the second columnar member is pressed in the direction of the pressing force by the second jack bolt.
(Appendix 10)
a hole is formed in each of the first support member and the second support member,
a through hole is formed in the second columnar member,
a first shaft portion, a second shaft portion, and an elastic body are inserted into the through hole;
the elastic body is sandwiched between the first shaft portion and the second shaft portion,
a portion of the first shaft portion protruding from the through hole and inserted into a hole of the first support member;
An elevator according to any one of claims 1 to 4, wherein a portion of the second shaft portion protrudes from the through hole and is inserted into a hole in the second support member.

10 Elevator shaft, 11 Car, 12 Control panel, 13 Cable, 13a First surface, 13b Second surface, 14, 15 Cable suspension device, 21 First columnar member, 21a, 21b Shaft portion, 22 Second columnar member, 22a, 22b Shaft portion, 22d Shaft member, 22e Through hole, 22f First shaft portion, 22g Second shaft portion, 22h, 22i Axial end surface, 23 Third columnar member, 24, 25 Gap, 26 Irregularity, 27 Split pin, 28a First fastening member, 28b Second fastening member, 29 Cord-like member, 30 Elastic body, 31 First support member, 31a, 31b Hole, 31d Bolt support portion, 32 Second support member, 32a, 32b Hole, 32c End surface, 32d Bolt support portion, 33 notch, 33a open end, 34a first jack bolt, 34b second jack bolt, 41, 42, 43 contact portion, 44 straight line.

Claims (10)

A car that goes up and down the elevator shaft,
a control panel fixed to the elevator shaft;
A cable connecting the car and the control panel;
a cable suspension device fixed to at least one of the car and the elevator shaft and suspending the cable;
Equipped with
The cable suspension device is
a first pillar-shaped member;
a second pillar member disposed below the first pillar member;
a third columnar member disposed below the second columnar member;
a first support member that supports one end of each of the first columnar member, the second columnar member, and the third columnar member;
a second support member that supports the other end of each of the first columnar member, the second columnar member, and the third columnar member;
It has
each of the first columnar member, the second columnar member, and the third columnar member extends in a direction intersecting with a vertical direction;
the first post and the third post are in contact with a first surface of the cable;
the second pillar-shaped member is in contact with a second surface of the cable, the second surface being the surface opposite to the first surface;
the cable is bent along each of the first pillar member, the second pillar member, and the third pillar member;
a pressing force is applied to the cable by the second pillar-shaped member,
An elevator in which, when viewed along the extension direction of the second pillar-shaped member, the contact point between the second pillar-shaped member and the cable is located on the side of the direction of the pressing force relative to a straight line passing through the contact point between the first pillar-shaped member and the cable and the contact point between the third pillar-shaped member and the cable. The elevator described in claim 1, wherein one or two of the first pillar member, the second pillar member, and the third pillar member are rotatably supported by the first support member and the second support member. An elevator as described in claim 1 or claim 2, wherein each of the first pillar-shaped member, the second pillar-shaped member, and the third pillar-shaped member has a cylindrical outer peripheral surface. An elevator as described in claim 1 or claim 2, wherein at least one of the first pillar member, the second pillar member, and the third pillar member has a friction force increasing portion formed thereon. an axial portion protruding from the second columnar member is formed at an end portion of the second columnar member in the extension direction;
a notch having an open end formed on an end surface opposite to the direction of the pressing force in at least one of the first support member and the second support member;
The notch extends obliquely downward from the open end,
The shaft portion is inserted into the notch,
3. The elevator according to claim 1, wherein the shaft portion is located below the open end portion. a through hole is formed in each of the first support member and the second support member,
a through hole is formed in the second columnar member,
3. An elevator as described in claim 1 or claim 2, wherein the cable suspension device further has an axial member passing through a through hole of the first support member, a through hole of the second columnar member, and a through hole of the second support member. a through hole is formed in each of the first support member and the second support member,
The cable suspension device is
a first fastening member that fastens the first support member and one end of the second columnar member through a through hole of the first support member;
a second fastening member that fastens the second support member and the other end of the second columnar member through a through hole of the second support member;
3. The elevator according to claim 1 or claim 2, further comprising: the cable suspension device further includes a cord-like member fixed to the first support member,
The second support member has a through hole formed therein,
a through hole is formed in the second columnar member,
3. The elevator according to claim 1, wherein the cord-like member is passed through a through-hole of the second pillar member and a through-hole of the second support member. the cable suspension device further includes a first jack bolt supported by the first support member and a second jack bolt supported by the second support member,
one end of the second columnar member is pressed in the direction of the pressing force by the first jack bolt,
3. The elevator according to claim 1, wherein the other end of the second pillar-shaped member is pressed in the direction of the pressing force by the second jack bolt. a hole is formed in each of the first support member and the second support member,
a through hole is formed in the second columnar member,
a first shaft portion, a second shaft portion, and an elastic body are inserted into the through hole;
the elastic body is sandwiched between the first shaft portion and the second shaft portion,
a portion of the first shaft portion protruding from the through hole and inserted into a hole of the first support member;
3. The elevator according to claim 1, wherein a portion of the second shaft portion protrudes from the through hole and is inserted into a hole of the second support member.