JPH0867456A - Inclined elevator - Google Patents

Abstract

PURPOSE: To provide an inclined elevator devised to improve durability and a driving environment by way of eliminating oscillation of a cable carrier. CONSTITUTION: This inclined elevator is furnished with a control cable 20 extending from a lower part of an inclined elevating passage 1, a cage 7 elevating in the elevating passage 1, a cable carrier 30-1 to elevate with the cage 7 by way of holding an upper end part of the control cable 20 and cable carriers 30-2, 30-3 sequentially connected to the cable carrier 30-1 through messenger wires 50-1, 50-2 with a damper 60 installed on them and holding the control cable 20 with a specified interval.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diagonal elevator for vertically raising and lowering an elevator cage.

[0002]

2. Description of the Related Art Conventionally, a skew elevator of this type is shown in FIG.
The configuration was as shown in. In FIG. 4, reference numeral 1
Is an inclined hoistway, and a machine room 2 is provided above the hoistway 1. A hoisting machine 3 is present in the machine room 2, and a main rope 4 is hung on the hoisting machine 3. In the hoistway 1, inclined guide rails 5 and 6 are provided, and a carriage 8 on which a basket 7 is placed and a counter 9 are placed on the guide rails 5 and 6. And these dolly 8
And counters 9 are attached to both ends of the main rope 4 stretched by the deflecting wheels 10 and 11. As a result, the cage 7 is lowered and raised along the guide rails 6 by raising and lowering the counter 9 by driving the hoisting machine 3.

A control cable 20 is connected to the basket 7 of such an oblique elevator. Specifically, the control cable 20 is connected to the control cable splicing box 21 attached to the lower side of the hoistway 1 and the control cable splicing box 22 attached to the basket 7, and a cable carrier that holds the control cable 20. 30 (one cable carrier 30
-1, and a plurality of cable carriers 30-2, 30-3) are slidably attached to the guide rail 40. Then, the cable carrier 30-1 and the cable carrier 3
The messenger wire 50 (50 between 0-2 and 30-3
-1, 50-2) are connected, and the cable carrier 30-
A drive rope 53, which is connected to the counter 9 via the deflecting wheels 51 and 52, is connected to one end of 1.

FIG. 5 is a block diagram of the cable carrier 30. In FIG. 5, reference numeral 31 is a carrier body,
Guide rails 40 are provided on both upper ends of the carrier body 31.
Is provided with a lower portion of the guide portion 32, and a roller 33 that rotates in a guide rail 40 is attached to the central portion of the guide portion 32. Further, at both lower ends of the carrier body 31,
A mounting portion 34 for mounting the drive rope 53 (or the messenger wire 50) and a mounting portion 35 for mounting the messenger wire 50 are provided. A cable fixture 36 is attached to the central portion, and the control cable 20 is sandwiched between the cable fixture 36 and the hanger 37.

Since the oblique elevator has such a structure, when the hoisting machine 3 is driven and the basket 7 is raised in FIG. 4, the counter 9 is lowered and the drive rope 53 is moved to the cable carrier. Pull up 30-1. Then, when the cable carrier 30-1 rises by a predetermined distance and the messenger wire 50-1 is tensioned, the descending force of the counter 9 is transmitted to the cable carrier 30-2,
The cable carrier 30-2 starts rising. Then, when the messenger wire 50-2 is strained, the cable carrier 30-3 starts to rise. In this way, the cable carriers 30-1 to 30-3 ascend with the cage 7 one after another, whereby the control cable 20 is extended upward.

[0006]

However, the above-described conventional skew elevator has the following problems.
In FIG. 6, since the drive rope 53 is tensioned from the beginning by the counter 9 (see FIG. 4), the counter 9
As shown in FIG. 7 (a), the speed of the cable carrier 30-1 smoothly rises to a constant speed state after the start. However, cable carrier 3
At the time of starting 0-2, 30-3, the messenger wires 50-1, 50-2 suddenly become tense from the initially loose state, so that the cable carriers 30-2, 30-3 are suddenly pulled, It will be in a pop-out state. Therefore, the speeds of the cable carriers 30-2 and 30-3 have a waveform that rises sharply at the time of starting and undulates for a while, as shown in FIG. 7B.

When the cable carriers 30-2 and 30-3 perform the above-described start, this influence is transmitted via the messenger wires 50-1 and 50-2 to the front cable carriers 30-1 and 30-2. Be transmitted to. As a result, as shown in (b) and (c) of FIG. 8, the influence of the velocity waveform e of the cable carrier 30-3 is influenced by the cable carrier 30.
2 appears as a waveform d in the velocity waveform of -2, and as shown in FIGS. 8A and 8B, the influence of the velocity waveforms c and d of the cable carrier 30-2 affects the velocity waveform of the cable carrier 30-1. Appear as waveforms a and b.

As a result, the cable carrier 30-1 vibrates twice by the influence waveforms a and b, the cable carrier 30-2 vibrates twice by the starting waveform c and the influence waveform d, and the cable carrier 30-3 starts. It vibrates once by e. As a result, the cable carriers 30-1, 3
The vibration of 0-2 causes the control cable 20a between the cable carriers 30-1 and 30-2 to undulate between the holding points x and y as shown by the solid line and the broken line in FIG. Further, due to the vibration of the cable carriers 30-2 and 30-3, the control cable 20b between the cable carriers 30-2 and 30-3 undulates between the clamping points y and z. When the waviness of the control cables 20a and 20b is repeated in this way, bending is repeatedly applied to the sandwiching points x, y, and z,
The internal strands of the control cable 20 at that portion will be fatigued. Further, since the two control cables 20 are in a stacked state as shown in FIG. 5, when the control cables 20 are wavy, the two control cables collide with each other and generate noise. As described above, in the conventional oblique elevator, the internal strands of the control cable 20 may be fatigued and broken due to the waving of the control cables 20a and 20b, so that the control cable 20a and the control cable 20a, 20b
There is a problem that the driving environment is lacking because noise is generated due to the waving.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an oblique elevator which eliminates vibration of the cable carrier and improves durability and operating environment. To do.

[0010]

In order to achieve the above-mentioned object, an oblique elevator according to a first aspect of the present invention has a control cable extending from a lower portion of an inclined hoistway, and hoists in the hoistway. Cage and one cable carrier that holds the upper end of the control cable and moves up and down with the cage,
And a plurality of cable carriers that are sequentially connected to the one cable carrier via a messenger wire to which a damper is attached and that hold the control cables at predetermined intervals.

According to a second aspect of the present invention, there is provided an oblique elevator according to the first aspect, in which the distance between the rod protruding from the cylinder of the damper and the cylinder in the state where the messenger wire is connected is greater than the stroke of the rod. It was configured with a long backup wire attached.

[0012]

According to the skew elevator according to the first aspect of the invention, one cable carrier holds the upper end of the control cable and moves up and down together with the basket. Then, when the messenger wire is tensioned, the next cable carrier is activated.
At this time, one cable carrier that moves up and down and the next cable carrier are connected to each other through the messenger wire to which the damper is attached, so that the sudden tension of the messenger wire is absorbed by the damper. Therefore, no impact is generated on the next cable carrier, so that the cable carrier starts smoothly without generating vibration. Similarly, in the subsequent cable carriers, the sudden tension of the messenger wire is absorbed by the damper, so that the cable carriers do not generate vibration in sequence,
It will start smoothly.

According to the skew elevator of claim 2,
Since the backup wire is attached between the rod of the damper and the cylinder, when the rod comes out of the cylinder, the messenger wire is connected to the damper via the backup wire.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing a main part of a skew elevator according to an embodiment of the present invention. 4 and 5
The same members as the members shown in FIG.

The skew elevator of this embodiment is different from the above-described conventional skew elevator in that it is provided with a damper. That is, also in the present embodiment, as shown in FIG. 1, the main rope 4 is hung on the hoisting machine 3 in the machine room 2, and the basket 7 is placed on the guide rails 5 and 6 in the hoistway 1. A dolly 8 and a counter 9 are placed. Then, the dolly 8 and the counter 9
Are attached to both ends of the main rope 4 stretched by the deflecting wheels 10 and 11, and the counter 9 is moved up and down by driving the hoist 3 so that the basket 7 is lowered and raised along the guide rails 6. Has become. Further, the control cable 20 is connected to the control cable joint box 21 and the control cable joint box 22 of the basket 7, and the control cable 20 is held by the cable carriers 30-1 to 30-3.

These cable carriers 30-1 to 30
-3 is connected by messenger wires 50-1 and 50-2 to which a damper 60 is attached. Specifically, as shown in FIG. 2, the damper 60 has a cylinder 61 having a mounting portion 62 at one end, a cylinder (not shown) slidably inserted into the cylinder 61, and an unillustrated piston at the inner end of the cylinder. It is composed of a rod 66 having a wire attachment portion 65 at the outer end portion of the cylinder. Although not shown, the cylinder 61 is filled with hydraulic oil to resist the tensile force applied to the rod 66.
A return spring that pulls the rod 66 back into the cylinder 61 is attached to the. Thus, when an external force is applied to the rod 66, the hydraulic oil in the cylinder 61 absorbs the energy of the external force, and the rod 66 gradually extends from the cylinder 61. Further, when released from the external force, the rod 66 is retracted to the cylinder 61 side by the action of the return spring.

As shown in FIG. 1, the mounting portion 62 of the damper 60 is axially supported by the mounting portion 35 of the cable carrier 30-1 (or the cable carrier 30-2), and the wire mounting portion 65 is , Messenger wire 50-1 (or messenger wire 50-2) attached to the attachment portion 34. Then, as shown in FIG. 2, a backup wire 50a is provided at the connecting portion of the messenger wire 50-1 (50-2).
Specifically, the end of the messenger wire 50-1 (50-2) is hooked back to the pin 65a of the wire attachment portion 65, and the returned portion is fixed to the cylinder 61 with the tape 68 in a slackened state. , Backup wire 50
a. The length of the backup wire 50a depends on the specified stroke of the rod 66 (for example, 110 m).
It is set longer than m).

Next, the vibration damping operation of this embodiment will be described. In FIG. 1, when the cage 7 is on the lowest floor of the hoistway 1, the control cable 20 and the messenger wires 50-1 and 50-2 are in a hanging state, as indicated by a chain double-dashed line. .

Since the drive rope 53 is tense from the beginning, when the cage 7 starts to rise, the speed of the cable carrier 30-1 rises smoothly from the start as shown by the solid line in FIG. It becomes a speed state. Cable carrier 30-1
As the cable rises from the starting state, the cable carrier 30
The damper 60 attached to -1 rotates upward around the attachment portion 35. Then, when the damper 60 and the messenger wire 50-1 are aligned with each other and the messenger wire 50-1 is in a tension state, the tension force pulls the rod 66 of the damper 60.

At this time, the cable carrier 30-2 is in a state of being pulled suddenly. Therefore, in the case where the damper 60 is not provided, as shown by the broken line in FIG.
0-2 will start at a wavy speed. However, in this embodiment, since the damper 60 is provided between the cable carrier 30-2 and the messenger wire 50-1, the tension of the messenger wire 50-1 is absorbed by the hydraulic oil in the cylinder 61. Then, the rod 66 gradually extends from the cylinder 61. As a result,
The cable carrier 30-2 will start at a smooth speed, as indicated by the dashed line. Therefore, when the messenger wire 50-1 is tensioned, the cable carrier 3
0-2 starts to move smoothly without vibrating.

When the cable carrier 30-2 is pulled by the cable carrier 30-1 and moved up from this starting state, the damper 60 attached to the cable carrier 30-2 is centered on the attachment portion 35 this time. Start rotating upwards. Then, when the damper 60 and the messenger wire 50-2 are aligned with each other and the messenger wire 50-2 is in a tension state, the tension force causes
The rod 66 of the damper 60 is pulled. Also at this time,
The tension of the messenger wire 50-2 causes the cylinder 61 to
Since the rod 66 is absorbed by the hydraulic oil inside and the rod 66 gradually extends from the cylinder 61, the cable carrier 30-3 also starts to move smoothly without vibrating.

As described above, according to this embodiment, the damper 6
By the action of 0, the cable carriers 30-1 to 30-
Since the 3 starts smoothly without vibrating, the waving phenomenon of the control cable 20 does not occur. As a result, since the control cable 20 is not bent at the control cable holding points x, y, z of the cable carriers 30-1 to 30-3, the internal strands of the control cable 20 are fatigued.
It does not break. Further, since the control cable 20 does not undulate, no noise is generated.

As mentioned above, the cable carrier 30-
1, when the cable carrier 30-2 is started, the tension applied to the messenger wires 50-1 and 50-2 is absorbed by the damper 60, but the tension applied to the messenger wires 50-1 and 50-2. Power is a great power. Therefore, with long-term use, the damper 6
It can be said that there is a possibility that 0 will be damaged and the rod 66 will come out of the cylinder 61. In this case, since a large pulling force is directly applied to the control cable 20,
The control cable 20 may be broken.

However, in this embodiment, since the backup wire 50a is provided on the damper 60, the rod 6
When 6 comes out of the cylinder 61, the messenger wire 50-1 (50-2) is replaced by the backup wire 50a.
It is in a state of being connected to the cylinder 61 via. Therefore, even if the rod 66 is pulled out, the connection state between the cable carriers 30 is maintained, so that a large pulling force is not applied to the control cable 20. As a result, the rod 66 is
The accident that the control cable 20 is broken due to the disconnection of the cable does not occur.

[0025]

As described above, according to the skew elevator according to the invention described in claim 1, the sudden tension force of the messenger wire is absorbed by the damper, and the cable carrier is sequentially smoothed without vibrating. Because it starts
No waviness occurs on the control cable. Therefore, even if the control cable is used repeatedly for a long period of time, there is no risk of fatigue or breakage of the internal strands of the control cable, and thus the durability of the control cable can be significantly improved. Further, since the control cable does not undulate, noise is not generated, and the operating environment can be improved.

According to the skew elevator of claim 2,
Even if the damper rod comes out of the cylinder,
Since the messenger wire is connected to the damper via the backup wire, it is possible to prevent the situation in which tension is directly applied to the control cable when the damper is damaged.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a main part of a skew elevator according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a damper.

FIG. 3 is a velocity waveform diagram of a cable carrier.

FIG. 4 is an overall schematic diagram showing a conventional oblique traveling elevator.

FIG. 5 is a configuration diagram of a cable carrier.

FIG. 6 is a undulating state diagram of the control cable.

FIG. 7 is a velocity waveform diagram at the time of starting the cable carrier, (a) of FIG. 7 shows the velocity waveform of the cable carrier that starts first, and (b) of FIG. 7 shows the velocity of the cable carrier that starts later. The waveform is shown.

FIG. 8 is a velocity waveform diagram showing an influence waveform of a cable carrier, FIG. 8 (a) is an influence waveform occurring in a cable carrier that is started first, and FIG. 8 (b) is a cable carrier that is started next. FIG. 8C is a starting waveform diagram of the cable carrier started last.

[Explanation of symbols]

1 hoistway, 7 cage, 20 control cable, 30-1 ~
30-3 cable carrier, 50-1, 50-2 messenger wire, 60 damper.

Claims (2)

[Claims] 1. A cage that has a control cable extending from a lower portion of an inclined hoistway and that ascends and descends in the hoistway; and a cable carrier that holds the upper end portion of the control cable and that ascends and descends together with the cage. And a plurality of cable carriers that are sequentially connected to the one cable carrier via a messenger wire to which a damper is attached, and hold the control cable at predetermined intervals. 2. A backup wire longer than the stroke of the rod is attached between the rod protruding from the cylinder of the damper and the cylinder in a state where the messenger wire is connected. The skew elevator according to Item 1.