JP2006062769A - Hanging rope rotation stopper for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hanging rope rotation stopper for an elevator capable of certainly suppressing rotation action by rotation force based on tension of respective hanging ropes with a simple structure and easy work. <P>SOLUTION: The hanging rope rotation stopper for the elevator is provided with a plurality of hanging ropes 3 for hanging down and supporting a car of the elevator and a balance weight; shackle rods 8a, 8b, 8c connected to ends of the hanging ropes 3, penetrated through a beam member 2 from a lower part to an upper part respectively and supported on the beam member 2 through a tension adjustment means; and a bracket 20 provided between the respective shackle rods 8a, 8b, 8c each other projected from the beam member 2 and having one end fastened and fixed to one shackle rods 8a, 8b, 8c each other and the other end engaged with the other shackle rods 8a, 8b, 8c to suppress the rotation of one shackle rods 8a, 8b, 8c. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a suspension rope detent device for suspending and supporting an elevator car and a counterweight.

  The elevator car and the counterweight are suspended in a hoistway of the building via a suspension rope wound around the hoisting machine, and are moved up and down in the opposite directions in the hoistway by driving by the hoisting machine. To do.

  The car and the counterweight are suspended by a plurality of suspension ropes (wire ropes) arranged in parallel, and the end portions of the suspension ropes are locked to the beam members. FIG. 14 shows a locking structure of each suspension rope with respect to the beam member. Reference numeral 1 denotes a floor member of a machine room in which a hoisting machine (not shown) is installed, and a beam member 2 above the floor member 1. Is provided. The end of each suspension rope 3 is connected to a socket 4 and fastened to the socket 4 via a clip 5.

  Shackle rods 8 are connected to the sockets 4, and the upper end portions of the shackle rods 8 are inserted into the beam members 2 provided in the machine chamber from the lower side and protrude upward from the beam members 2. Has been derived to be.

  Each shackle rod 8 is loosely inserted into the beam member 2, and a screw is machined on the outer peripheral surface of each shackle rod 8. A coil spring 9 and a washer 10 are mounted on the outer periphery of each shackle rod 8 projecting upward from the beam member 2, and a pair of tension adjusting means is provided on each shackle rod 8 above the washer 10. Tightening and locking nuts 12 a and 12 b are screwed, and a coil spring 9 is sandwiched between the nuts 12 a and 12 b and the beam member 2.

  With such a structure, each suspension rope 3 is supported by the beam member 2, and the lower side of each suspension rope 3 is led out through the opening 1 a formed in the floor member 1. The load applied to each suspension rope 3 is elastically received by each coil spring 9.

  By the way, a rotating force is generated in the suspension rope 3 in accordance with a load applied to the suspension rope 3. This rotation force is based on the twisted structure of the suspension rope 3, and a rotation force is generated in a direction opposite to the twist direction according to the load of the suspension rope 3. In order to suppress the rotation of the suspension rope 3 due to such rotation force, conventionally, a thin rod 15 for preventing rotation is inserted between the adjacent sockets 4 and is passed over. Thus, the rotation (rotation) of each suspension rope 3 is suppressed. A wire rope may be used instead of the bar 15.

  It is necessary to adjust the tension of the suspension rope 3 as necessary. At the time of the adjustment, the nut 12a for tightening which is screwed to the shackle rod 8 is tightened or loosened so that the position of the shackle rod 8 is adjusted. Displace up and down. By such tension adjustment, the positions of the sockets 4 adjacent to each other may change, and may be arranged in a stepped manner up and down.

  In such a case, when the rod 15 is inserted between the adjacent sockets 4 to prevent the suspension rope 3 from rotating, the adjacent sockets 4 are stepped so that the rod 15 is inserted. May become difficult.

  If a thin wire rope having flexibility is used instead of the bar 15, it can be inserted between the sockets 4 having different steps. In this case, the wire rope is a thin wire rope having flexibility. The rotation force of the suspension rope 3 cannot be sufficiently suppressed, and the wire rope is bent by the rotation force, and the adjacent sockets 4 may collide with each other to generate an abnormal sound.

  Further, in the conventional structure, the work position when inserting the bar 15 and the wire rope is within a narrow space between the floor member 1 and the beam member 2 in the machine room, which makes it difficult to perform the work. There is a difficulty that decreases.

  The present invention has been made paying attention to such points, and the object of the present invention is to accurately suppress the rotation operation by the rotation force based on the tension of each suspension rope with a simple structure and easy work. Another object is to provide a suspension rope detent device for an elevator.

  According to the first aspect of the present invention, there are provided a plurality of suspension ropes for suspending and supporting an elevator car and a counterweight, and ends connected to the suspension ropes. Provided between the shackle rod supported by the member via tension adjusting means and each shackle rod protruding from the beam member, and one end is fastened and fixed to one of the shackle rods between the other, the other end Is provided with an anti-rotation member that engages with the other shackle rod and suppresses the rotation of the one shackle rod.

  In the invention of claim 2, the anti-rotation member has an engagement portion that engages with the one shackle rod at one end portion, and an engagement portion that engages with the other shackle rod at the other end portion, The fitting portion is formed of a circular through hole, and the engaging portion is formed of a U-shaped cutout groove.

  In the invention of claim 3, the anti-rotation member has a fitting portion that engages with the one shackle rod at one end, and an engaging portion that engages with the other shackle rod at the other end. The fitting portion and the engaging portion are each formed of a U-shaped notch groove.

  The invention of claim 4 is characterized in that the anti-rotation member is configured to be extendable and contractible in the longitudinal direction.

  The invention according to claim 5 is characterized in that a soundproofing material is provided at the engaging portion of the detent member.

  According to the present invention, it is possible to accurately suppress the rotation operation by the rotation force based on the tension of each suspension rope with a simple structure and easy work.

  Embodiments of the present invention will be described below with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part corresponding to the conventional structure, and the duplicate description is abbreviate | omitted.

  1 to 4 show a first embodiment. This embodiment is an example of a case where a car and a counterweight are suspended in a hoistway using six suspension ropes 3. Shackle rods 8 a, 8 b, 8 c, 8 d, 8 e, 8 f are connected to the end portions of the suspension ropes 3 through sockets 4, respectively.

  These six shackle rods 8a, 8b, 8c, 8d, 8e, and 8f are arranged with respect to the beam member 2 so that three of them are arranged in parallel in two rows in the left-right direction as shown in FIG. These are locked to the beam member 2 via coil springs 9 and nuts 12a and 12b as tension adjusting means, respectively.

  Brackets 20 as anti-rotation members are spanned between the upper portions of the adjacent shackle rods 8a, 8b, 8c, 8d, 8e, and 8f.

  As shown in FIGS. 3 and 4, the bracket 20 has a step 21 at an intermediate portion, and is formed in a plate shape long in one direction so as to be bent in a crank shape as a whole. These brackets 20 are formed of, for example, a steel plate.

  A circular through hole 23 having a diameter slightly larger than the diameter of the shackle rods 8a, 8b, 8c, 8d, 8e, and 8f is formed at one end of the bracket 20 in the longitudinal direction, and the other end is formed at the other end. A U-shaped notch groove 24 having a width slightly larger than the diameter of the shackle rods 8a, 8b, 8c, 8d, 8e, and 8f is formed as the engaging portion. The cutout groove 24 is formed so that the open portion thereof faces one side edge of the bracket 20.

  In the bracket 20 spanned between the adjacent shackle rods 8a and 8b, the shackle rod 8a is inserted into the through hole 23 at one end thereof, and one end thereof is tightened by the nuts 12a and 12b. It is fixed to the shackle rod 8a, and a notch groove 24 at the other end is disposed above the nut 12a of the other adjacent shackle rod 8b and latched so as to engage with the shackle rod 8b.

  With the same structure, between the shackle rods 8b and 8c, between the shackle rods 8c and 8d, between the shackle rods 8d and 8e, between the shackle rods 8e and 8f, and between the shackle rods 8f and 8a. Each bracket 20 is stretched. In addition, the direction of the opening part of the notch groove 24 in each bracket 20 is the same direction as the direction when the bracket 20 rotates by the rotation force due to the tension of the suspension rope 3.

  In such a configuration, when tension is applied to the suspension rope 3 and the shackle rods 8a, 8b, 8c, 8d, 8e, and 8f try to rotate integrally with the suspension rope 3, the shackle rods 8a and 8b are rotated. , 8c, 8d, 8e, and 8f also attempt to rotate integrally with the shackle rods 8a, 8b, 8c, 8d, 8e, and 8f.

  However, since the bracket 20 is engaged with the adjacent shackle rods 8b, 8c, 8d, 8e, 8f, and 8a via the notch grooves 24, the rotation operation of the bracket 20 eventually results in the shackle rods 8b, 8c, 8d, 8e, 8f, and 8a prevent the suspension rope 3 from rotating.

  On the other hand, when adjusting the tension of the hanging rope 3, the shackle rods 8a, 8b, 8b, 8c, 8d, 8e, 8f are tightened or loosened by tightening or loosening the tightening nuts 12a. , 8c, 8d, 8e, and 8f are vertically displaced to adjust the tension of the suspension rope 3.

  At this time, the shackle rods 8a, 8b, 8c, 8d, 8e, and 8f only move up and down with respect to the position of the nut 12a, and the position of the nut 12a is maintained at a fixed position with almost no change. That is, even if the shackle rods 8a, 8b, 8c, 8d, 8e, and 8f are arranged in a stepped manner by adjusting the tension of the suspension rope 3, the brackets 20 are maintained in a substantially fixed position without affecting the steps, and accordingly The rotation operation due to the rotation force based on the tension of the suspension rope 3 can be accurately suppressed as it is.

  Each bracket 20 has shackle rods 8a, 8b, 8c, 8d, 8e, and 8f, that is, the shackle rods 8a, 8b, 8c, 8d, which are adjacent to each other at the upper end of the shackle rods 8, that is, the portion where the periphery of the beam member 2 is widely opened. 8e and 8f may be mounted between each other, so that the mounting operation can be performed easily and efficiently.

  5 and 6 show a second embodiment. In this embodiment, a circular through hole 23 is formed as a fitting portion at one end portion in the longitudinal direction of the bracket 20 and is engaged with the other end portion. As a part, the U-shaped notch groove 24 is formed along the longitudinal direction thereof, that is, the open part of the notch groove 24 faces the one end edge of the bracket 20.

  Also in this case, as in the first embodiment, the through hole 23 is fitted to one of the adjacent shackle rods 8a, 8b, 8c, 8d, 8e, 8f, and the notch groove 24 is engaged to the other. The bracket 20 is spanned between the adjacent shackle rods 8a, 8b, 8c, 8d, 8e, and 8f, and one end of the bracket 20 is fitted into the through hole 23 at one end thereof. , 8c, 8d, 8e, and 8f are fastened and fixed by a pair of nuts (not shown).

  In the case of this embodiment, when the bracket 20 tries to rotate integrally with the shackle rods 8a, 8b, 8c, 8d, 8e, and 8f by the rotation force due to the tension applied to the hanging rope, the notch groove 24 of the bracket 20 is used. The side edge contacts the inner shackle rods 8b, 8c, 8d, 8e, 8f, 8a, and the rotation is prevented.

  In this case, since the cutout groove 24 of the bracket 20 extends along the longitudinal direction thereof, the side edge of the cutout groove 24 is the shackle rod 8b, 8c, 8d, 8e, 8f, and 8a abut against the rotation of the bracket 20, so that the same bracket 20 can be used regardless of the direction of the rotation force of the suspension rope, and the direction of the rotation force of the suspension rope can be changed. Therefore, it is not necessary to check each time, so that the mounting work of the bracket 20 can be performed easily and efficiently.

  7 and 8 show a third embodiment. In this embodiment, a U-shaped notch groove 23 is formed as a fitting portion at one end portion of the bracket 20 and an engaging portion is provided at the other end portion. A U-shaped cutout groove 24 is formed. And both the open parts of these notch grooves 23 and 24 are in the state which faces the one edge of the bracket 20.

  Also in this case, as in the first embodiment, the notch groove 23 is fitted to one of the adjacent shackle rods 8a, 8b, 8c, 8d, 8e, and 8f, and the notch groove 24 is engaged to the other. The shackle rods 8a, 8b, in which the bracket 20 is spanned between the adjacent shackle rods 8a, 8b, 8c, 8d, 8e, 8f, and one end of the bracket 20 is fitted in the notch groove 23 of the one end. , 8c, 8d, 8e, and 8f are fastened and fixed by a pair of nuts (not shown).

  In the case of this embodiment, both the fitting part and the engaging part of the bracket 20 are formed of U-shaped notch grooves 23 and 24, and both the notch grooves 23 and 24 are directed in the same direction. When removing the bracket 20 to adjust the tension of the rope, the nuts 12a and 12b shown in FIG. 1 are loosened, and the nut 12b is pulled out horizontally with the bracket 20 directed to the side, and the shackle rods 8a, 8b, 8c, 8d The bracket 20 can be removed without removing it from 8e, 8f. Further, when the bracket 20 is attached to the shackle rods 8a, 8b, 8c, 8d, 8e, and 8f again, it can be easily and efficiently attached without removing the nut 12b.

  9 to 11 show a fourth embodiment. In this embodiment, the bracket 20 is divided into a pair of end plates 20a, 20b and an intermediate plate 20c, and is attached to one end edge of the intermediate plate 20c. One end plate 20a is rotatably connected via the hinge 30a, and the other end plate 20b is rotatably connected to the other end edge of the intermediate plate 20c via the hinge 30b. Then, the intermediate plate 20c stands up almost vertically, and the end plates 20a, 20b extend horizontally, whereby the whole bracket 20 forms a stepped crank shape, and the intermediate plate 20c is inclined so that the whole bracket 20 is formed. It is possible to expand and contract in the longitudinal direction. One end plate 20a of the bracket 20 is formed with, for example, a circular through hole 23 as a fitting portion, and the other end plate 20b is formed with, for example, a U-shaped notch groove 24 as an engaging portion.

  Also in this case, as in the case of the first embodiment, the through hole 23 is fitted into one of the adjacent shackle rods 8a, 8b, 8c, 8d, 8e, 8f, and the notch groove 24 is formed in the other. Shackle rods 8a, 8b, 8c, 8d engaged and spanned between adjacent shackle rods 8a, 8b, 8c, 8d, 8e, 8f and having one end fitted into a notch groove 23 at one end thereof. , 8e, 8f are fastened and fixed by a pair of nuts (not shown) screwed.

  In the case of this embodiment, since the bracket 20 can be expanded and contracted in the longitudinal direction, the bracket 20 can be expanded and contracted even if there is an error in the distance between adjacent shackle rods 8a, 8b, 8c, 8d, 8e, and 8f. Regardless of the error, the bracket 20 can be mounted over the adjacent shackle rods 8a, 8b, 8c, 8d, 8e, 8f.

  Further, in this bracket 20, the end plate 20b is rotated in the arrow direction from the state shown in FIG. 10 and overlapped with the intermediate plate 20c as shown in FIG. 11, and further the intermediate plate 20c is rotated in the arrow direction from the state. Thus, the bracket 20 can be folded compactly so as to be superimposed on the end plate 20a, and therefore, the bracket 20 can be conveniently carried and stored.

  12 and 13 show a fifth embodiment. In this embodiment, a circular through hole 23 is formed as a fitting portion at one end portion of the bracket 20 in the longitudinal direction, and is engaged with the other end portion. A U-shaped notch groove 24 is formed as a part, and a sound absorbing material 33 is attached to the notch groove 24 as an engaging part. The sound absorbing material 33 is made of rubber or synthetic resin, and is attached so as to extend along the peripheral edge of the notch groove 24.

  In the case of this embodiment, the notch groove 24 is engaged with the shackle rods 8a, 8b, 8c, 8d, 8e, and 8f, and the edge of the notch groove 24 is shackle rod by the rotation force applied to the suspension rope. 8 a, 8 b, 8 c, 8 d, 8 e, 8 f, but the edge of the notch groove 24 is shackle rods 8 a, 8 b, 8 c, 8 d, 8 e, 8 f through the sound absorbing material 33. Since the contact sound or sliding sound is absorbed by the sound absorbing material 33, the noise due to the contact or sliding can be reduced.

  Such a sound absorbing material 33 can also be attached to the notch groove 24 of the bracket 20 shown in FIG. 5, the notch groove 24 of the bracket 20 shown in FIG. 7, and the notch groove 24 of the bracket 20 shown in FIG.

  Moreover, in each said embodiment, although the bracket as a rotation prevention member was provided between the mutually adjacent shackle rods, it does not necessarily need to be provided between the adjacent shackle rods. That is, the anti-rotation member is provided between any shackle rods, one end of the anti-rotation member is fastened and fixed to one shackle rod, and the other end is engaged with the other shackle rod.

1 is a front view showing a suspension rope detent device according to a first embodiment of the present invention. The top view of the suspension rope detent | locking apparatus. The top view which shows the bracket as a detent member in the suspension rope detent device. The side view of the bracket. The top view which shows the bracket as a detent member in the suspension rope detent device which concerns on 2nd Embodiment of this invention. The side view of the bracket. The top view which shows the bracket as a detent member in the suspension rope detent device which concerns on 3rd Embodiment of this invention. The side view of the bracket. The top view which shows the bracket as a detent member in the suspension rope detent device which concerns on 4th Embodiment of this invention. The side view of the bracket. The side view of the state which folded the bracket. The top view which shows the bracket as a detent member in the suspension rope detent device which concerns on 5th Embodiment of this invention. The side view of the bracket. The front view which shows the conventional suspension rope detent | locking apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Floor member 2 ... Beam member 3 ... Hanging rope 4 ... Socket 5 ... Clip 8 ... Shackle rod 8a-8f ... Shackle rod 12a. 12b ... Nut 20 ... Bracket (non-rotating member)
23 ... Through hole 23 ... Notch groove 24 ... Notch groove 33 ... Sound absorbing material

Claims (5)

A plurality of suspension ropes that suspend and support the elevator car and counterweight;
Shackle rods connected to the ends of these suspension ropes, inserted into the beam members from the lower part to the upper part and supported by the beam members via tension adjusting means,
Provided between the shackle rods protruding from the beam member, one end portion is fastened and fixed to one of the shackle rods between them, and the other end portion is engaged with the other shackle rod, and the one shackle rod is engaged. A detent member that suppresses rotation of the
A lifting rope detent device for an elevator, comprising:   The anti-rotation member has a fitting portion that engages with the one shackle rod at one end and an engaging portion that engages with the other shackle rod at the other end, and the fitting portion is circular. The lifting rope detent device for an elevator according to claim 1, comprising a through hole, and the engaging portion is formed of a U-shaped cutout groove.   The anti-rotation member has a fitting portion that engages with the one shackle rod at one end, and an engaging portion that engages with the other shackle rod at the other end. The suspension rope detent device for an elevator according to claim 1, wherein each of the portions is formed of a U-shaped notch groove.   4. The suspension rope detent device for an elevator according to claim 1, wherein the detent member is configured to be extendable and contractable in the longitudinal direction.   The elevator suspension rope detent device according to any one of claims 1 to 4, wherein a soundproof material is provided at an engaging portion of the detent member.

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