JP2014169145A - Elevator and tail cord vibration control device included therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tail cord vibration control device capable of suppressing surely rocking of a tail cord without lowering installation workability on an elevator without enlarging an installation space of the elevator, and to provide an elevator including the vibration control device.SOLUTION: One or a plurality of tail cord vibration control devices 3A are mounted on the wall surface of a hoistway 2 or on a structure 12 fixed to the wall surface of the hoistway. The tail cord vibration control device 3A includes a holding frame 23 of a tail cord 8, and an opening/closing member 24 installed on the holding frame 23, opened by a folding part 8a of the tail cord 8 displaced following vertical movement of a car 4, and closing automatically the holding frame 23 after passage of the folding part 8a.

Description

  The present invention relates to an elevator and a damping device for a tail cord, one end of which is connected to an elevator car.

  The elevator is a hoisting machine that lifts or lowers the car by hoisting or paying out a car rope installed in the hoistway, one end of the wire rope tied to the car, and an elevator control device that performs drive control of the hoisting machine And a tail cord for supplying power from the elevator control device to the car and transferring signals between the elevator control device and the car. One end of the tail cord is connected to the car, and the other end is connected to a relay box installed at an intermediate position in the height direction of the hoistway.

  The tail cord is shaken by various factors such as shaking of the building due to an earthquake or wind or driving and stopping of the car. In the conventional general elevator, the tail cord is suspended in the hoistway, and no means for suppressing the tail cord is provided. For this reason, if the tail cord is shaken according to the shaking of the building, etc., the tail cord easily collides with the devices arranged in the hoistway, and there is a concern about the failure of the devices or the breakage of the tail cord. . In particular, since the tail cord swaying width increases as the tail cord becomes longer, such inconveniences are likely to occur in a high-rise elevator.

  Conventionally, in order to solve such a problem, an insertion path of a tail cord called a hoistway duct is formed in a building along the hoistway, and the hoistway duct is lifted and lowered in a gap communicating the hoistway and the hoistway duct. The thing provided with the code | cord | chord stop member for preventing the jumping of the tail code | cord | chord to a road is proposed (for example, refer the summary of patent document 1). Since the elevator described in Patent Document 1 can suppress tail cord oscillation by the hoistway duct, it is possible to prevent breakdown of equipment, breakage of the tail cord, and the like due to tail cord oscillation.

JP 2005-145614 A

  However, since the elevator described in Patent Document 1 must form a hoistway duct in the building along the hoistway, not only the construction cost of the building becomes expensive, but also the elevator installation space becomes larger. As a result, other available space becomes narrower. Moreover, since a great deal of labor is required to insert the tail cord into the hoistway duct, the installation work of the elevator is deteriorated.

  The present invention has been made in view of the state of the prior art as described above, and its purpose is to ensure that the tail cord is not shaken without expanding the installation space of the elevator and deteriorating the installation work of the elevator. The present invention is to provide a tail cord damping device that can be suppressed to a low level and an elevator equipped with the damping device.

  In order to solve the above-mentioned problems, the present invention relates to an elevator, a car installed in a hoistway, a hoisting machine that drives the car up and down, and an elevator control device that controls the hoisting machine. An elevator comprising a tail cord for electrically connecting the elevator car and the elevator controller, and a structure fixed to the wall surface of the hoistway or the wall surface of the hoistway; An opening / closing member that is installed on the holding frame and is opened by the folded portion of the tail cord that displaces following the raising and lowering of the car, and that automatically closes the holding frame after passing through the folded portion One or a plurality of tail cord vibration control devices having the above are attached.

  Further, in order to solve the above-described problems, the present invention relates to a tail cord damping device, a tail cord holding frame, and a tail cord installed on the holding frame and displaced in accordance with the raising and lowering of the car. An opening / closing member is provided that is opened by the folding portion and that automatically closes the holding frame after passing through the folding portion.

  According to the present invention, since one or more tail cord damping devices are attached to the wall of the hoistway or the structure fixed to the wall of the hoistway, it is necessary to form the hoistway duct for tail cord damping in the building. It is possible to prevent an increase in the construction cost of the building and an increase in the installation space of the elevator. In the tail cord damping device of the present invention, the holding frame is provided with an opening / closing member that is opened by the folded portion of the tail cord and that automatically closes the holding frame after passing through the folded portion. The tail cord can be automatically held only by providing the frame at an appropriate position in the hoistway, and the installation work of the elevator can be facilitated.

It is a longitudinal cross-sectional view of the hoistway which shows the structure of the elevator which concerns on 1st Embodiment. It is a cross-sectional view of the hoistway showing the configuration of the elevator according to the second embodiment. 1 is a perspective view of a tail cord damping device according to Embodiment 1. FIG. 1 is a front view of a tail cord vibration damping device according to Embodiment 1. FIG. It is a perspective view which shows the tail cord holding | maintenance state of the tail cord damping device which concerns on Example 1. FIG. FIG. 6 is a perspective view of a tail cord vibration control device according to a second embodiment. FIG. 10 is an operation explanatory diagram of the tail cord vibration control device according to the second embodiment. It is a front view which shows the structure and operation | movement of the tail cord damping device which concerns on Example 3. FIG.

  Hereinafter, embodiments of an elevator according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the elevator 1 </ b> A according to the first embodiment has a plurality of (five in the example of FIG. 1) tail cord vibration control devices 3 on the wall surface of the hoistway 2 with a predetermined interval therebetween. It is characterized by being mounted in a vertical row. About another part, it is comprised similarly to the general elevator which belongs to well-known.

  That is, in the hoistway 2, a car 4 is installed via a guide rail (not shown) fixed to the wall surface of the hoistway 2, and the car 4 is connected to a hoisting machine 6 through a wire rope 5. Yes. The hoisting machine 6 is controlled by an elevator control device 7 to raise and lower the car 4 along the hoistway 2. The car 4 and the elevator control device 7 are electrically connected via a tail cord 8. The tail cord 8 has such a length that the car 4 can be operated between the lowermost floor and the uppermost floor of the building, and one end is connected to the car 4 and the other end is the height of the hoistway 2. It is connected to a relay box 9 installed at an intermediate position in the vertical direction. The relay box 9 and the elevator control device 7 are connected to each other via a fixed cable 10 wired along the wall surface of the hoistway 2, thereby supplying power from the elevator control device 7 to the car 4 and the elevator. Signals can be transmitted and received between the control device 7 and the car 4. The set number and set interval of the tail cord damping device 3 are determined in consideration of the total length of the tail cord 8, ease of swinging, and the like.

  The elevator 1B according to the second embodiment has a high rigidity arranged along the wall surface of the hoistway 2 as shown in FIG. 2 instead of the configuration in which the tail cord damping device 3 is directly attached to the wall surface of the hoistway 2. The tail cord damping device 3 is attached to the structure. In the example of FIG. 2, a bracket 12 is integrally formed on the guide rail 11 of the car 4 fixed to the wall surface of the hoistway 2, and the tail cord damping device 3 is attached to the bracket 12. 2 indicates a guide member provided on the car 4 and is engaged with a guide rail 11 fixed to the wall surface of the hoistway 2.

  Next, an embodiment of the tail cord damping device 3 according to the present invention will be described for each example with reference to the drawings.

  As shown in FIGS. 3 to 5, the tail cord damping device 3 </ b> A according to the first embodiment includes a substrate portion 21 and two side plate portions 22 erected in the same direction from the left and right sides of the substrate portion 21. A U-shaped holding frame 23, a U-shaped opening / closing member 24 attached to the inner surface of the side plate portion 22, and an opening / closing member 24 provided between the inner surface of the side plate portion 22 and the bent portion 25 of the opening / closing member 24. And a butterfly spring 26 that normally biases the spring in the opening direction.

  One to a plurality of (two in the example of FIG. 4) bolt through holes 21a are formed in the substrate portion 21, and the holding frame 23 uses bolts (not shown) penetrated through the bolt through holes 21a. The bracket 12 is fixed to the wall surface of the hoistway 2 or the bracket 12 fixed to the wall surface of the hoistway 2. The distance between the inner surfaces of the two side plate portions 22 is set larger than the width of the tail cord 8 so that the tail cord 8 can be inserted.

  As shown in FIGS. 3 to 5, the lower portion of the opening / closing member 24 is an operation portion 27 that is pressed by the tail cord 8 via the bent portion 25. The upper part is a drop-off prevention portion 28 that moves forward of the tail cord 8 that has entered the holding frame 23 and prevents the tail cord 8 from dropping out of the holding frame 23. The lateral width of the drop-off prevention unit 28 is formed to be smaller than the lateral width of the operation unit 27, and the fall-off prevention unit 28 is formed at an intermediate position in the width direction of the operation unit 27. In the opening / closing member 24 of this example configured as described above, the operation portion 27 is disposed on the passage route of the tail cord 8, and the drop-off prevention portion 28 is movable in front of the tail cord 8 contained in the holding frame 23. In this way, it is attached to the inner surface of the side plate portion 22 constituting the holding frame 23.

  The butterfly spring 26 is provided in the vicinity of the bent portion 25 formed in the opening / closing member 24, and one end is fixed or abutted on the outer surface of the operation portion 27 and the other end is fixed or abutted on the inner surface of the side plate portion 22. Has been. Accordingly, as shown in FIGS. 3 and 4, the butterfly spring 26 has the opening / closing member 24 in a direction in which the outer surface of the drop-off prevention portion 28 abuts against the inner surface of the side plate portion 22 and the operation portion 27 protrudes into the holding frame 23. Is energized.

  Hereinafter, the operation of the tail cord damping device 3A according to the first embodiment will be described.

  In a state in which the tail cord 8 is not held by the holding frame 23, the drop-off preventing portion 28 of the opening / closing member 24 is caused to move by the elastic force of the butterfly spring 26, as shown in FIGS. 3 and 4. The operating portion 27 of the opening / closing member 24 protrudes into the holding frame 23. As the car 4 is lowered, the folded portion 8a of the tail cord 8 is lowered, and when the folded portion 8a of the lowered tail cord 8 enters the holding frame 23, the opening / closing member 24 protruding into the holding frame 23 is provided. The folded portion 8a of the tail cord 8 abuts against the operating portion 27, and the opening / closing member 24 is rotated in the opposite direction against the elastic force of the butterfly spring 26 by the force. As a result, as shown in FIG. 5, the operating portion 27 of the opening / closing member 24 is pivoted in a direction in contact with the side plate portion 22 of the holding frame 23, and the drop-off preventing portion 28 of the opening / closing member 24 enters the holding frame 23. The tail cord 8 turns to the front side. While the tail cord 8 is in the holding frame 23, the operating portion 27 of the opening / closing member 24 is pressed by the side portion of the tail cord 8, so that the tail cord 8 is pivoted in a direction in contact with the side plate portion 22 of the holding frame 23. Subsequently, the drop-off preventing portion 28 of the opening / closing member 24 remains in the state of being turned to the front side of the tail cord 8 that has entered the holding frame 23. Therefore, it is possible to reliably prevent the tail cord 8 from falling off the holding frame 23.

  On the other hand, from the state in which the tail cord 8 is held in the holding frame 23, the folded portion 8a of the tail cord 8 rises as the car 4 rises, and the folded portion 8a of the raised tail cord 8 moves to the holding frame. When the set position of 23 is exceeded, the engagement with the tail cord 8 is released, so that the opening / closing member 24 pivots in the biasing direction by the elastic force of the butterfly spring 26 and returns to the state of FIGS. 4 and 5. Therefore, the tail cord 8 can be smoothly detached from the holding frame 23.

  As shown in FIGS. 6 and 7, the tail cord damping device 3 </ b> B according to the second embodiment includes a substrate portion 31, two side plate portions 32 and side plates erected in the same direction from the left and right sides of the substrate portion 31. A substantially U-shaped holding frame 34 comprising an opening / closing member setting portion 33 folded outward from the tip of the portion 32; an arm-like opening / closing member 35 pivotably attached to the outer surface of the opening / closing member setting portion 33; A coil spring 36 that is provided between the opening / closing member setting portion 33 and the opening / closing member 35 and holds the opening / closing member 35 in a horizontal position at all times, and a reinforcement that is disposed outside the opening / closing member 35 and is fixed to the opening / closing member setting portion 33. The member 37 is comprised.

  As shown in FIGS. 6 and 7A and 7C, the opening / closing member 35 is pivotably connected to the opening / closing member setting portion 33 via a connecting pin 38 at the center of the base end portion. Is held horizontally by a coil spring 36 stretched between the upper side and the opening / closing member setting portion 33. The other parts are the same as those of the tail cord damping device 3A according to the first embodiment, and therefore the corresponding parts are denoted by the same reference numerals and the description thereof is omitted.

  Hereinafter, the operation of the tail cord damping device 3B according to the second embodiment will be described.

  In a state where the tail cord 8 is not held by the holding frame 34, as shown in FIGS. 6 and 7A, the distal end portion of the opening / closing member 35 is placed in the opening of the holding frame 34 by the elastic force of the coil spring 36. Is protruding. As the car 4 is lowered, the folded portion 8a of the tail cord 8 is lowered. When the folded portion 8a of the lowered tail cord 8 enters the holding frame 34, as shown in FIG. The folded portion 8a of the tail cord 8 abuts on the opening / closing member 35 protruding into the opening 34, and by this force, the tip of the opening / closing member 35 resists the elastic force of the coil spring 36 around the connecting pin 38. Is turned downward. When the folded portion 8 a of the tail cord 8 further descends and passes through the opening / closing member 35, the opening / closing member 35 returns to the original horizontal state by the elastic force of the coil spring 36. Thereby, it is possible to reliably prevent the tail cord 8 from falling off the holding frame 34.

  On the other hand, from the state in which the tail cord 8 is held in the holding frame 34, the folded portion 8a of the tail cord 8 rises as the car 4 rises, and the folded portion 8a of the raised tail cord 8 becomes the holding frame. When entering the inside 34, the folded portion 8 a of the tail cord 8 comes into contact with the opening / closing member 35 projecting into the opening of the holding frame 34, and by this force, the tip of the opening / closing member 35 faces upward with the connecting pin 38 as the center. Is rotated. When the folded portion 8 a of the tail cord 8 further rises and passes through the opening / closing member 35, the opening / closing member 35 returns to the original horizontal state by the elastic force of the coil spring 36. Thereby, the tail cord 8 can be smoothly detached from the holding frame 34.

  The tail cord damping device 3B according to the present embodiment has the same effect as the tail cord damping device 3A according to the first embodiment, and the reinforcing member 37 is provided on the outer surface side of the opening / closing member 35. Can be prevented from being deformed and has excellent durability.

  As shown in FIG. 8, the tail cord damping device 3 </ b> C according to the third embodiment has a U-shaped configuration including a substrate portion 41 and two side plate portions 42 erected in the same direction from the left and right sides of the substrate portion 41. The holding frame 43 and an opening / closing member 44 made of a U-shaped elastic plate with one end fixed to the outer surface of the side plate portion 42.

  The side plate portion 42 is provided with a through hole 45 through which the front end side of the opening / closing member 44 can be inserted, and one end of the opening / closing member 44 is fixed to the upper or lower portion of the through hole 45. Further, the central portion of the opening / closing member 44 bent in a U shape penetrates the through hole 45 and protrudes from an intermediate portion of the two side plate portions 42. Others are the same as those of the tail cord damping device 3A according to the first embodiment and the tail cord damping device 3B according to the second embodiment.

  Hereinafter, the operation of the tail cord damping device 3C according to the second embodiment will be described.

  In a state where the tail cord 8 is not held by the holding frame 43, as shown by a solid line in FIG. 8, the center portion of the opening / closing member 44 projects into the holding frame 43. As the car 4 is lowered, the folded portion 8a of the tail cord 8 is lowered, and when the folded portion 8a of the lowered tail cord 8 enters the holding frame 43, the opening / closing member 44 protruding into the holding frame 43 is provided. The folding portion 8a of the tail cord 8 comes into contact with the elastic member, and the opening / closing member 44 is elastically deformed by the force as shown by the broken line in FIG. 8, and the opening / closing member 44 is retracted to the outside of the side plate portion 42 through the through hole 45. The When the folded portion 8a of the tail cord 8 further descends and passes through the opening / closing member 44, the opening / closing member 44 projects into the holding frame 43 by its own elastic force. Thereby, it is possible to reliably prevent the tail cord 8 from falling off the holding frame 43.

  On the other hand, from the state in which the tail cord 8 is held in the holding frame 31, the folded portion 8a of the tail cord 8 rises as the car 4 is raised, and the folded portion 8a of the raised tail cord 8 becomes the holding frame. 43, the folded portion 8a of the tail cord 8 comes into contact with the opening / closing member 44 protruding into the holding frame 43, and the opening / closing member 44 is elastically deformed by the force. It is retracted to the outside of the side plate portion 42 through. When the folded portion 8a of the tail cord 8 further rises and passes through the opening / closing member 44, the opening / closing member 44 projects again into the holding frame 43 by its own elastic force. As a result, the tail cord 8 can be smoothly detached from the holding frame 44.

  The tail cord damping device 3C according to the present embodiment has the same effect as the tail cord damping device 3A according to the first embodiment, and also provides elasticity to the opening / closing member 44 itself. It is not necessary and can be implemented inexpensively.

  DESCRIPTION OF SYMBOLS 1 ... Elevator, 2 ... Hoistway, 3A, 3B, 3C ... Tail cord damping device, 4 ... Car, 5 ... Wire rope, 6 ... Hoisting machine, 7 ... Elevator control device, 8 ... Tail cord, 9 ... Relay Box, 10 ... Fixed cable, 11 ... Guide rail, 12 ... Bracket, 13 ... Guide member, 21 ... Board part, 21a ... Bolt through hole, 22 ... Side plate part, 23 ... Holding frame, 24 ... Opening / closing member, 25 ... Bending 26, butterfly spring, 27, operation portion, 28 ... drop-off prevention portion, 31 ... substrate portion, 32 ... side plate portion, 33 ... opening / closing member setting portion, 34 ... holding frame, 35 ... opening / closing member, 36 ... spring 37: Reinforcing member, 38: Connecting pin, 41: Substrate part, 42: Side plate part, 43 ... Holding frame, 44 ... Opening / closing member, 45 ... Through hole.

Claims (5)

A car installed in the hoistway, a hoist that drives the car to move up and down, an elevator control device that controls the drive of the hoist, and a tail that electrically connects the car and the elevator control device In an elevator with a cord,
On the wall surface of the hoistway or a structure fixed to the wall surface of the hoistway, the tail cord holding frame, and the tail cord folded back that is installed on the holding frame and is displaced following the raising and lowering of the car An elevator having one or more tail cord damping devices provided with an opening / closing member that is opened by a portion and that automatically closes the holding frame after passing through the folded portion. The elevator according to claim 1,
As the tail cord damping device, a U-shaped holding frame having an inner width through which the tail cord can be inserted, and an inner surface of the holding frame are pivotably attached, and are swung by the tail cord. An elevator comprising: a U-shaped opening / closing member; and a spring member that urges the opening / closing member in a position direction about a bent portion thereof. The elevator according to claim 1,
As the tail cord damping device, the holding frame formed in a U-shape having an inner width through which the tail cord can be inserted, and one end of the holding frame are pivotably attached to the tip of the holding frame, and the tail cord An elevator comprising: an arm-shaped opening / closing member that is swiveled by a lever; and a spring member that holds the opening / closing member horizontally and has a distal end portion disposed in an opening of the holding frame. The elevator according to claim 1,
As the tail cord damping device, the holding frame formed in a U-shape having an inner width through which the tail cord can be inserted, and the opening / closing member made of a U-shaped spring material having one end fixed to the holding frame An elevator characterized by the use of   It is opened by a tail cord holding frame and a tail cord folding portion that is installed on the holding frame and is displaced following the raising and lowering of the car. After passing through the folding portion, the holding frame is automatically opened. A tail cord damping device comprising an opening / closing member for closing.

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