JP2005067834A - Cable type moving body protective device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To protect a cable type moving body from interference with a building frame of a hoistway and secure the free diameter of the cable type moving body, without considering movement of projecting objects, such as beams and steel frames, and changing a disposition position of the cable type moving body, when gaps between the cable type moving body, such as a tail cord, and the projecting objects, such as beams and steel frames, are narrow and small. <P>SOLUTION: Guide devices 13 for protecting an intermediate part of a tail cord 3 of which one end part is connected to a car 2 lifted/lowered inside the hoistway 1 and the other end part is supported by the hoistway 1, with respect to projecting parts 10 of the hoistway 1 are provided. These guide devices 13 comprise guide members 13a slidably guiding the tail cord 3 and support members 13b supporting the guide members 13a and mounted to the building frame of the hoistway 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention connects a device installed in an elevator car and a device such as a control device installed in a hoistway, and a cable-like moving body such as a tail cord that moves as the car moves up and down. It relates to a protective device.

  The car that goes up and down in the hoistway is installed in the machine room above the hoistway and equipment such as door drive motors, car lighting equipment and operation panel switches installed on the ceiling of the car. Tail cords and cables are disposed between the car and the hoistway to exchange control signals and supply power to devices such as control devices.

  FIG. 6 is a sectional view showing a general elevator. As shown in FIG. 6, in particular, in a low floor / medium / low speed elevator, a tail cord receiver (not shown) having a terminal box is disposed in the middle of the elevator 2 in the hoistway 1. The tail cord 3 is freely suspended from there, and one end of the tail cord 3 is held in a U-shape and supported by the tail cord receiver 4 on the car 2 side so that it can be connected to the car 2 equipment. It was.

  FIG. 7 is a perspective view showing a state in which the elevator car 2 provided with the tail cord receiver 4 is looked up from below. This elevator is of a raised type, and a lower beam 6 is provided on the lower surface of the car floor frame 5, and a sheave beam 8 that rotatably supports a pair of sheaves 7, 7 is provided on the lower beam 6. ing. The car 2 is lifted up and down by a lifting rope (not shown) wrapped around the pair of sheaves 7 and 7.

  The sheave beam 8 also serves as the tail cord receiver 4, and a pair of rotating members 9, 9 are rotatably attached to the plate surface. The tail cord 3 is wound around the pair of rotating members 9, 9. One end of the car passes through the car floor frame 5 and is connected to a device installed in the car 2.

  On the other hand, as shown in FIG. 6, the hoistway 1 generally has a flush hoistway wall surface 2a. However, in terms of architectural design, a projecting object such as a beam or a steel frame on the hoistway wall surface 1a side. May be formed. FIG. 8 is a schematic configuration diagram showing a conventional elevator in which a protruding object 10 such as a beam or a steel frame is formed on the hoistway wall surface 1a side. In such a case, the distance between the tail cord 3 and the projecting object 10 such as a beam or a steel frame becomes narrow, and if they interfere with each other, the operation of the elevator may be hindered.

  If the distance between the tail cord 3 and the projecting object 10 such as a beam or steel frame is narrow as the above-mentioned correspondence, the construction side considers the movement of the beam or steel side, or the tail code 3 and the projecting object When 10 interferes, measures such as changing the planned arrangement position of the tail cord 3 on the elevator installation side are taken.

  However, if the beam or steel projection 10 cannot be moved due to the design of the building including the hoistway 1, the tail cord receiver 4 is placed on the side opposite to the projection 10 of the car floor frame 5 as shown in FIG. 8. The position of the tail cord 3 when the car 2 is moved down to the position of the car 2 is moved as close as possible to the car 2 side, or the tail cord 3 and the protruding object 10 such as a beam or steel frame In the meantime, it has been necessary to take measures to eliminate interference with the projecting object 10 such as a beam or a steel frame with respect to the tail cord 3 by installing a tail cord protection wire mesh 11 or the like.

  Recently, as shown in FIG. 6, only the pit portion 1b of the hoistway 1 has a tendency to reduce the hoistway plane size. In this case as well, only when the car 2 lands on the lowest floor, It is necessary to take similar measures.

  When the tail cord receiver 4 is moved to the side of the car 2 opposite to the protruding portion 10, the U-shaped free diameter of the tail cord 3 decreases, and the tail cord 3 has a limit free diameter determined by its physical properties. If it is not secured, there is a risk that a twist will occur, causing a malfunction. FIG. 9 is a schematic configuration diagram showing another conventional elevator, and shows a case where a twist 3 a is generated in the tail cord 3.

  For this reason, due to the design of the building including the hoistway 1, the protruding object 10 such as a beam or a steel frame cannot be moved, and even if the tail code receiver 4 is moved to the side opposite to the protruding part 10, If the free diameter cannot be guaranteed, the planned placement position of the tail cord 3 must be changed.

  This imposes a burden on the building side that designs the building including the hoistway 1 so as to secure the necessary hoistway space again, and at the same time, the projecting object 10 such as a beam or a steel frame on the elevator installation side. It is necessary to select the arrangement position of the tail cord 3 that is not affected by this, and to newly design the equipment in the hoistway 2 related to this, both of which are a heavy burden.

  As described above, in the conventional elevator, when the distance between the tail cord 3 and the protruding object 10 such as the beam or the steel frame is narrow, the movement of the protruding object 10 such as the beam or the steel frame in the hoistway 1 is considered. In addition, there is a problem that the standard arrangement position of the tail cord 3 has to be changed.

  Therefore, the present invention eliminates the need to consider the movement of the projecting object such as the beam or the steel frame when the distance between the cable-like moving object such as the tail cord and the projecting object such as the beam or the steel frame is narrow. Cable-shaped moving body protection for elevators that can protect the cable-shaped moving body from interference with the hoistway drive and ensure the free diameter of the cable-shaped moving body without changing the arrangement position of the cable-shaped moving body An object is to provide an apparatus.

  In order to achieve the above object, the present invention uses an intermediate part of a cable-shaped moving body, one end of which is connected to a car that moves up and down in the hoistway and the other end supported by the hoistway, as a driver of the hoistway. A guide device for protecting the guide member is provided. The guide device includes a guide member that slidably guides the cable-shaped moving body, and a support member that supports the guide member and is attached to the hoistway of the hoistway. It is characterized by comprising.

  By configuring in this way, when the distance between the cable-like moving body and the protruding object such as the beam or the steel frame is narrow, the cable-like moving body can be guided by the guide device, so that the protrusion of the beam, the steel frame, etc. Protects the cable-like moving body from interference with the hoistway and ensures the free diameter of the cable-like moving body without moving objects or changing the position of the cable-like moving body be able to.

  In this case, the support member can be provided with an adjusting means capable of variably configuring the distance between the guide member and the hoistway shaft.

  Further, a slip-off preventing member that restricts the shaking of the cable-like moving body can be provided on both axial sides of the guide member.

  Furthermore, a guide device can also be provided in the car.

  As described above, according to the cable-like moving body protecting apparatus for an elevator according to the present invention, when the distance between the cable-like moving body such as the tail cord and the protruding object such as the beam or the steel frame is narrow, Without considering the movement of protrusions such as steel frames or changing the position of the cable-like moving body, the cable-like moving body is protected from interference with the hoistway and the cable-like moving body. Can be ensured.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram showing a first embodiment of a cable-like moving body protecting apparatus for an elevator according to the present invention. FIG. 2 is an enlarged perspective view showing the main part in FIG. 1 and 2, the car 2 is suspended by a suspension rope (not shown) so as to move up and down in the hoistway 1. On the wall surface 1a of the hoistway 1, a projecting object 10 such as a beam or a steel frame is formed. A tail cord 3, which is a cable-shaped moving body that connects a device installed in the car 2 and a device installed in the hoistway 1, has one end supported by the hoistway 1 and an intermediate portion along the hoistway 1. The other end is wound around the rotating members 9 and 9 of the tail cord receiver 4 provided on the lower surface of the car 2 and connected to the car 2.

  An intermediate portion of the tail cord 3 is guided and supported by a guide device 13 attached to the hoistway of the hoistway 1 such as the wall surface 1 a of the hoistway 1 and the protrusion 10.

  As shown in FIG. 2, the guide device 13 includes a drum-shaped guide member 13 a and a pair of support members 13 b and 13 b, and the pair of support members 13 b and 13 b is an arbitrary body of the hoistway 1. The guide member 13a is supported by the pair of support members 13b and 13b at both ends in the axial direction.

  Here, the guide member 13a is a portion that directly contacts and slides on the tail cord 3 to protect it, and the outer surface is made of a smooth material such as rubber so as not to damage the tail cord 3. .

  A plurality of guide devices 13 having different diameters of the guide member 13a are attached to the vicinity of the protruding portion 10 of the hoistway 1 or to the wall surface 1a, and the tail cord 3 sliding on the guide member 13a is moved up and down. It arrange | positions so that it may not interfere with the protrusion 10 of the path | route 1. FIG.

  Since the tail cord 3 is always pressed against the protruding portion 10 and the wall surface 1a of the hoistway 1, the tail cord 3 is in direct contact with the outer peripheral surface of the guide member 13a without applying any force to the guide member 13a. Further, the guide member 13a is configured in a drum shape having a concave portion along the axial direction, so that the shaking of the guide member 13a along the axial direction is suppressed. Further, since the guide member 13a has a drum shape and is formed with a concave portion along the axial direction on the entire circumference in the circumferential direction, if the guide member 13a is attached to the support member 13b when the guide device 13 is attached, The concave surface can be positioned.

  Therefore, according to the present embodiment, when the distance between the tail cord 3 and the projecting object 10 such as a beam or a steel frame is narrow, by attaching the guide device 13 to an appropriate portion of the body of the hoistway 1, The movement of the tail cord 3 can be smoothly guided and supported without moving the projecting object 10 such as a beam or a steel frame in the hoistway 1 and without changing the standard arrangement position of the tail cord 3. The tail cord 3 can be protected without interference with the protrusion 10 in the hoistway 1.

  FIG. 3 is a perspective view showing a second embodiment of the elevator-like cable-like moving body protecting apparatus of the present invention. In FIG. 3, in the present embodiment, connecting members 14 and 14 are provided between a guide member 13a and a pair of support members 13b and 13b, respectively, to constitute a guide device 23. The connecting members 14 and 14 One end is connected to the support members 13b and 13b, respectively, and the other end is connected to both axial ends of the guide member 13a. Since the connecting members 14 and 14 are fastened together with the support members 13b and 13b, the attachment angle of the guide member 13a can be arbitrarily set. The connecting members 14 and 14 are also provided with the guide member 13a. Are connected to the guide member 13a through the long holes 14a, 14a, so that the distance between the guide member 13a and the support member 13b is determined by the length of the long hole 14a. It has a variable structure that can be set freely within the range of length. As a result, the guide device 23 can be arranged at an appropriate position on the movement path of the tail cord 3, and the tail cord 3 can be arranged by the guide device 23 even in a more complicated hoistway 1 shape. Can be protected.

  FIG. 4 is a perspective view showing a third embodiment of the elevator-like cable-like moving body protecting apparatus of the present invention. In FIG. 4, the present embodiment is characterized in that the guide device 33 is configured by providing the locking members 15, 15 on both axial sides of the guide member 13 a.

  In general, the direction of the swaying of the tail cord 3 occurs when the car is raised or lowered or during an earthquake, but the direction along the axial direction of the guide member 13a is mainly used. For this reason, the guide member 13a has a drum shape and has a shape in which a concave portion is formed along the axial direction, whereby a certain restriction can be imposed on the movement of the tail cord 3. In the present embodiment, the tail cord 4 is prevented from being detached from the guide member 13a by further providing anti-slip members 15 and 15 extending in a direction perpendicular to the axial direction of the guide member 13a.

  FIG. 5 is a schematic configuration diagram showing a fourth embodiment of the elevator-like cable-like moving body protecting apparatus of the present invention. In FIG. 5, the present embodiment is characterized in that a guide device 13 is provided also on the car 2 side. If the U-shaped free diameter of the tail cord 3 must be reduced because the pit portion 1b is configured to protrude in the hoistway 1, the guide is guided to the tail cord receiver 4 on the car 2 side. By providing the device 13, even if a force for generating a twist phenomenon is applied to the tail cord 3, the guide device 13 limits the force and is based on the occurrence of the twist, for example, the tail cord 3 and the car floor frame 5. It is possible to prevent the occurrence of troubled movements such as interference.

  When the temperature difference in the hoistway occurs due to seasonal changes in climate, the tail cord 3 fluctuates in the free diameter of the tail cord 3 and twists on the tail cord 3 regardless of the originally set free diameter. Such a phenomenon may occur. Even in such a case, interference between the tail cord 3 and the hoistway of the hoistway 1 can be prevented by installing the guide device 13 at an appropriate place as described above.

  Each of the above embodiments can be applied not only to the tail cord, but also to protection against other cable-like moving bodies such as a compensation cable and a power supply cable.

It is a schematic block diagram which shows 1st Embodiment in the cable-shaped moving body protection apparatus of the elevator of this invention. It is a perspective view which expands and shows the principal part in FIG. It is a perspective view which shows 2nd Embodiment in the cable-shaped moving body protection apparatus of the elevator of this invention. It is a perspective view which shows 3rd Embodiment in the cable-shaped moving body protection apparatus of the elevator of this invention. It is a schematic block diagram which shows 4th Embodiment in the cable-shaped moving body protection apparatus of the elevator of this invention. It is sectional drawing which shows a general elevator. It is a perspective view which shows the state which looked up at the passenger car of the conventional elevator provided with the tail cord receiver from the downward direction. It is a schematic block diagram which shows the conventional elevator in which protrusions, such as a beam and a steel frame, are formed in the hoistway wall surface side. It is a schematic block diagram which shows another conventional elevator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Hoistway 1a ... Hoistway wall surface 1b ... Pit part 2 ... Car 3 ... Tail cord (cable-like moving body)
3a ... Twist 4 ... Tail cord receiver 5 ... Car floor frame 6 ... Lower beam 7 ... Sheave 8 ... Sheave beam 9 ... Rotating member 10 ... Projection 11 ... Tail cord protection wire mesh 13, 23, 33 ... Guide device 13a ... Guide member 13b ... support member 14 ... connecting member 14a ... long hole 15 ... anti-separation member

Claims (4)

A cable-like moving body having one end connected to a car that moves up and down in the hoistway and the other end supported by the hoistway, and an intermediate portion of the cable-like moving body with respect to the driver of the hoistway And a guide member having a recess for slidably guiding the cable-like moving body, and a support member that supports the guide member and is attached to the hoistway driver. An elevator cable-like moving body protection device characterized by comprising: The elevator-like cable-like moving body protection device according to claim 1, wherein the support member is provided with an adjusting means capable of variably configuring a distance between the guide member and the hoistway body. 3. The cable-shaped moving body protecting device for an elevator according to claim 1, wherein a slip-off preventing member that restricts shaking of the cable-shaped moving body is provided on both axial sides of the guide member. The elevator-like cable-like moving body protection device according to any one of claims 1 to 3, wherein the guide device is provided in the car.

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