JP2007308258A - Cable suspension device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cable suspension device for an elevator lengthening the service life of suspension wire ropes by equalizing the load of the suspension wire ropes disposed in the cable. <P>SOLUTION: The cable suspension device for the elevator suspending the cable between a hoistway building and a car by suspension-supporting the ends of at least two suspension wire ropes 3 disposed in the cable 2 to supply power to the car 1 and to transmit and receive signals, comprises a fixing member 5 mounted to the hoistway building or the car and formed with at least two elongate holes 6 in a vertical direction; an arm member 8 rotatably mounted to the fixing member through a support member 7 and formed with elongate holes 9 at both ends around the support member at the center; and shaft members 10 movably inserted through one side and the other side of the oblong holes formed in the fixing member and the oblong holes formed in the arm member and connected to shackle rods 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an elevator cable suspension system, and in particular, suspends and supports the end of a suspension wire rope arranged in a cable that feeds power to and receives signals from a high-stroke elevator car. The present invention relates to an elevator cable suspension system suspended between a building and a car.

  The elevator cable suspension system suspends and supports the ends of a plurality of suspension wire ropes arranged in a cable that feeds and sends signals to the car, and suspends the cable between the hoistway building and the car. Therefore, as the cable suspension device, conventionally, a device constituted by a shackle rod provided individually for each suspension wire rope has been proposed. If the load applied to multiple suspension wire ropes is not equal due to the attachment state of the suspension wire rope and shackle rod, the elevator cable suspension system can be used to mount the shackle rod under the hoistway building or elevator car. The fixing position in the height direction of the shackle rod is adjusted by turning a screw attached to the shaft, and the load applied to the plurality of suspension wire ropes is equalized (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2004-137019 (paragraphs 0010 to 0020, FIG. 1)

The technique disclosed in Patent Document 1 is to adjust the fixing position in the height direction of the shackle rod by turning a screw in order to equalize the load applied to the suspension wire rope. The load on the rope may not be equalized completely. Moreover, there is a possibility that the load sharing rate of the suspension wire rope may change due to the secular change of the wire rope elongation.
Therefore, the working load of any of the suspension wire ropes is increased, and there is a problem that the life of the suspension wire rope cannot be sufficiently extended.

  The present invention has been made to solve the above-described problems, and is an elevator that extends the life of a suspension wire rope by equalizing the load of the suspension wire rope arranged in the cable. The object is to obtain a cable suspension.

  The elevator cable suspension device according to the present invention suspends and supports at least two suspension wire rope ends in a cable for feeding and sending / receiving signals to / from a car, and the cable is constructed as a hoistway. A cable suspension system for an elevator, which is suspended between an object and a car and includes a shackle rod provided individually for each of the suspension wire ropes, wherein the cable suspension system is the hoistway building. Or a fixing member attached to the car and having at least two elongated holes formed in the vertical direction, and attached to the fixing member via a support member so as to be rotatable, and at both ends centering on the support member Move to one or the other of the arm member formed with the long hole, the long hole formed in the fixing member, and the long hole formed in the arm member It is inserted through the ability and is characterized by comprising a shaft member connected to the shackle rod.

  According to the present invention, it is possible to equalize the load of the suspension wire rope arranged in the cable for feeding and sending / receiving signals to / from the car, thereby obtaining the effect of extending the life of the suspension wire rope.

  Preferred embodiments of an elevator cable suspension according to the present invention will be described below with reference to the accompanying drawings.

Embodiment 1 FIG.
1 and 2 are diagrams for explaining Embodiment 1 of the present invention. FIG. 1 is a front view of a cable suspension device, and FIG. 2 is a side view of the cable suspension device of FIG.
1 and 2, two sets, for example, two suspension wire ropes 3 are arranged to extend in the longitudinal direction inside a cable 2 for feeding and sending / receiving signals to / from a car 1. Further, at the end portion of the cable 2 close to the car 1, the end portions of the two suspension wire ropes 3 are protruded to the outside by removing a part of the sheath (cover).

  The ends of the suspension wire ropes 3 are individually suspended via a shackle rod 4 on a pair of fixing members attached to the lower portion of the car 1 at a predetermined interval, for example, the first plate-like member 5. The first plate-like member 5 is formed with two elongated holes 6 in the vertical direction having the same pitch as the mounting pitch of the two suspension wire ropes 3. Further, a support member, for example, a first shaft 7 is attached to a substantially central portion of the first plate-like member 5, and the arm member 8 is centered on the first shaft 7 by the first shaft 7. It is attached so that it can rotate. The arm member 8 has two elongated holes 9 formed in the longitudinal direction of the arm member 8 at both ends thereof with the first shaft 7 as a center.

  A pair of second plate members 10 having two holes (not shown) in the vertical direction and facing each other with a predetermined interval are arranged so as to sandwich the arm member 8 from both sides. As can be understood from FIG. 2, the second plate-like member 10 and the arm member 8 include the long hole 6 in the first plate-like member 5, the hole in the upper vertical direction of the second plate-like member 10, The second plate 11 is inserted into the long hole 9 of the arm member 8 and is attached to the first plate-like member 5. With the above configuration, the first plate member 5 and the second plate member 10 are connected.

  Further, as understood from FIG. 2, the shackle rod 4 is inserted through the third shaft 12 into a hole in the lower vertical direction of the second plate-like member 10 disposed so as to be sandwiched from both sides. The second plate member 10 is rotatably attached to the second plate member 10. With the above configuration, the shackle rod 4 and the second plate-like member 10 are connected, and as a result, the first plate-like member 5 and the shackle rod 4 can rotate via the second plate-like member 10. Connected.

  Next, a connection configuration between the shackle rod 4 and the suspension wire rope 3 will be described. About this connection structure, it is the same as that of what is disclosed by Unexamined-Japanese-Patent No. 2004-137019 illustrated as above-mentioned patent document 1, and is comprised as follows.

  That is, the shackle rod 4 includes a rope socket 30, a rope pressing member 31, and a rod 32 (see FIG. 1) whose enlarged front view and left side view are shown in FIGS. The rope socket 30 includes a flat tubular rope holding portion 33 and a pair of support portions 34 protruding upward from the upper end portion of the rope holding portion 33. The inner diameter D in the major axis direction of the rope holding portion 33 is reduced in a tapered shape downward. A through hole 35 for attaching the rod 32 is formed at the upper end of each support portion 34.

  The rope pressing member 31 is plate-shaped and wedge-shaped, and a groove 36 for receiving the suspension wire rope 3 in the radial direction is formed on the entire outer periphery thereof. The end portion of the suspension wire rope 3 is passed from the lower end side of the rope holding portion 33 to the rope holding portion 33, and the end portion of the suspension wire rope 3 protruding above the rope holding portion 33 is inserted into the groove 36 of the rope pressing member 31. When the rope holding member 31 is inserted into the rope holding portion 33 and the tip of the suspension wire rope 3 protruding from the lower end of the rope holding portion 33 is pulled downward, The holding member 31 is pushed deeply by the rope holding portion 33, and the end of the suspension wire rope 3 accommodated in the groove 36 is pressed against the tapered inner side surface 33 a of the rope holding portion 33 to be fixedly held by the rope holding portion 33. It will be in the state.

  The tip of the end portion of the suspension wire rope 3 protruding from the lower end of the rope holding portion 33 is fixed to the portion of the end portion of the suspension wire rope 3 that does not enter the rope holding portion 33 by a fixing bracket 37 (see FIG. 1). Is done.

  The lower end portion of the rod 32 is connected to the rope socket 30 via a fastening member 38 (see FIG. 1) attached to the through hole 35 of the support portion 34 of the rope socket 30. On the other hand, the upper end portion of the rod 32 is connected to the lower hole in the vertical direction formed in the second plate member 10 by the third shaft 12 as described above.

The elevator cable suspension according to the first embodiment is configured as described above, and the operation thereof will be described next.
Assuming that the aging growth of the two wire ropes 3 is different and that the aging growth of the left wire rope 3 is large, as shown in FIG. It becomes a state. When the state shown in FIG. 5 is reached, the first shaft 7 is centered in the range of the long hole 6 formed in the vertical direction in the first plate-like member 5 attached to the lower portion of the car 1. As shown in FIG. 5, the arm member 8 is rotated, the second plate member 10 on the right side in FIG. 5 is lowered in the vertical direction, and the second plate member 10 on the left side is raised in the vertical direction. That is, the arm member 8 rotates like a seesaw in the range of the long hole 6 around the first shaft 7 in accordance with the aging of the wire rope 3, thereby adjusting the aging of the wire rope 3. become.

  As described above, the elevator cable suspension according to the first embodiment has a pair of first plate-like attachments attached to the lower part of the car 1 even if the two suspension wire ropes 3 have different aging elongations. Since the center of gravity of the cable 2 can be suspended while keeping the distance between the two wire ropes 3 in the range of the long hole 6 formed in the member 5 in the vertical direction, the load acting on the two suspension wire ropes 3 Can be kept even. Accordingly, the working load of either one of the two suspension wire ropes 3 is not increased, so that the life of the wire rope 3 can be sufficiently extended.

  In addition, although this embodiment illustrated and demonstrated the case where two suspension wire ropes were used, it is not limited to this, Two sets of suspension wires which made several suspension wire ropes into one set The same effect can be obtained when a rope is used.

  Moreover, although the case where the cable suspension apparatus was attached to the cage | basket | car was demonstrated, it cannot be overemphasized that the same effect is produced, even if it attaches to a hoistway building. In addition, as a hoistway building, for example, a cage, a counterweight weight guide rail or a beam for attachment to the hoistway wall is provided near the center of the hoistway height direction or at the upper part of the hoistway, or the beam is attached. What is necessary is just to comprise and provide a part.

  Further, the cable suspension device may be attached to both the car and the hoistway building. In this case, since the load applied to the rope at both ends of the wire rope is kept uniform, a higher effect can be expected.

  Moreover, although the case where the shackle rod 4 is connected to the second shaft 11 by interposing the second plate member 10 has been described as an example, the second plate member 10 is not interposed, The present invention is not limited to the present embodiment, for example, even if it is directly connected, and includes various design changes within the scope of the technical idea of the present invention.

  The elevator cable suspension device according to the present invention is highly applicable as a suspension device for a suspension wire rope disposed in a cable that feeds power to and receives signals from a car in a high-stroke elevator.

It is a front view of the cable suspension apparatus of the elevator which concerns on Embodiment 1 of this invention. It is a side view of the cable suspension apparatus of FIG. It is an enlarged front view of a shackle rod. It is an expansion left view of a shackle rod. It is a figure which shows the case where the right-and-left height becomes uneven when the wire rope for suspension is fixed with the shackle rod. It is a side view of the cable suspension apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Cable 3 Suspension wire rope 4 Shackle rod 5 1st plate-shaped member 6,9 Long hole 7 1st axis | shaft 8 Arm member 10 2nd plate-shaped member 11 2nd axis | shaft 12 3rd axis | shaft 30 Rope socket 31 Rope holding member 32 Rod 33 Rope holding part 34 Support part 35 Through hole 36 Groove 37 Fixing bracket 38 Fastening member

Claims (2)

At least two suspension wire rope ends arranged in a cable for feeding and sending / receiving signals to / from the car are supported by suspension, and the cable is suspended between the hoistway building and the car. And
In the elevator cable suspension system having a shackle rod provided individually for each of the suspension wire ropes,
The cable suspension is
A fixing member attached to the hoistway building or the car and having at least two elongated holes formed in a vertical direction;
An arm member that is rotatably attached to the fixing member with a support member interposed therebetween, and has an elongated hole formed at both ends around the support member;
A shaft member that is movably inserted into one and the other of the long hole formed in the fixing member and the long hole formed in the arm member, and is connected to the shackle rod;
A cable suspension system for an elevator, comprising:   The elevator cable suspension system according to claim 1, wherein the cable suspension apparatus is provided in both the hoistway building and the car.

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