JP2010208762A - Hoistway wiring method and device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hoistway wiring method for an elevator, for determining the wiring length, without depending on a structure of a building for arrangingd the elevator. <P>SOLUTION: An upper wiring branching device 26 is arranged in a reference position of the wiring length in the uppermost structure of a hoistway skeleton for forming a hoistway in a space partitioned by a wall surface of the building, and the upper wiring branching device 26 is connected to a control panel 17 of an elevator control device arranged in an upper part of the hoistway, and a first master cable 23 having the wiring length without depending on the building, is laid along the hoistway skeleton and the uppermost structure, and a second master cable 24 connected to the upper wiring branching part 26 and having the wiring length without depending on the building, is laid in the vertical direction along the skeleton of the hoistway. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wiring method and apparatus for laying wiring in an elevator hoistway.

  Generally, in a building where an elevator is installed, various devices necessary for the operation of the elevator are installed in various places. Specifically, hall call devices are installed in the elevator halls of each floor, and limit switches for detecting the terminal floor are provided at the uppermost and lowermost parts of the hoistway. In the lowermost pit, there are lighting power supplies and P-wave earthquake detectors.

  Further, along the elevator hoistway, wiring for transmitting signals and electric power necessary for the operation of the elevator is laid, and the control panel of the elevator and various electric devices are connected. In particular, the trunk cable provided vertically along the hoistway has many branch lines connected to the electrical equipment.

  Conventionally, various improvements and devices have been made in order to increase the efficiency of the work of laying wiring in the elevator hoistway or to eliminate the waste of electric wires.

  For example, in Patent Document 1, it is necessary to prevent the wiring load from being applied to the branch connection portion by crimping and connecting the branch wire to the inner wire of the main cable, and to form a loop-shaped branch portion in the main cable. However, a wiring method has been proposed in which the wiring length of the main cable can be shortened.

Further, Patent Document 2 proposes that a wiring bracket is attached to a guide rail and a wiring path is established along the wiring bracket in order to eliminate the extra length of an electric wire connected to an electrical device.
JP 2004-67361 A JP 2007-119119 A

  A problem in wiring the elevator hoistway is that the building structure of the building differs from building to building. In other words, the building structure of the building has its own structure, whereas the elevator hoistway is defined by the length of the hoistway and the size of the car, but the same model is the same There is a difference.

  This will be specifically described with reference to FIG. 11 in which the hoistway is seen from above. In FIG. 11, reference numeral 1 indicates a car. What is used as a hoistway is a space surrounded on all sides by a wall 2 of the building. The car 1 moves up and down along the car guide rails 3a and 3b, and the counterweight (not shown) moves up and down along the counterweight guide rails 4a and 4b. Reference numeral 5 denotes an elevator control panel.

  As described above, the size of the space defined by the wall 2 of the building varies from building to building, whereas the hoistway of the car 1 has the guide rails 3a and 3b for the car and the counterweight. This is determined by the arrangement of the guide rails 4a and 4b. Therefore, although the layout of the hoistway is constant regardless of the building, the size of the space outside the hoistway partitioned by the wall 2 varies depending on the building.

  Because of this situation, when arranging elevator wiring for a building, the person in charge of the arrangement plans to arrange wiring routing while comparing the building drawing with the layout drawing of the elevator. In order to prevent the wiring length from becoming insufficient in the local construction, it is usual to arrange for a longer wiring in advance, considering the extra wiring length.

  For example, in FIG. 11, the trunk cable includes a trunk cable 6 laid in the vertical direction along the wall 2 and a trunk cable 7 extending in the horizontal direction from the control panel 5 to the wall 2. The length of the main cable 7 extending in the horizontal direction varies depending on the structure of the building. In addition, since the branch line branched from the main cable 15 extending in the vertical direction is also wired along the wall, the length varies depending on the structure of the building. For this reason, there is a problem that the amount of electric wires corresponding to the extra length that is wasted becomes considerable in a high-rise building in order to arrange the wiring in anticipation of the extra length of the wiring as described above.

  Accordingly, an object of the present invention is to provide an elevator hoistway wiring method and apparatus that solves the problems of the prior art and allows the wiring length to be determined without depending on the structure of the building where the elevator is installed. It is to provide.

  In order to achieve the above object, the present invention connects an elevator control device, a call device for each floor landing, a sensor, a switch and other various electric devices to the elevator hoistway, and connects the electric power and signal transmission wiring to the hoistway. A hoistway wiring method for wiring along the upper wire branching device at the uppermost structure of the hoistway housing that forms the hoistway in the space defined by the wall of the building, A first main cable having a wiring length that does not depend on a building connected to a control panel of an elevator control device installed at the upper part of the hoistway and the upper wiring branching device is provided along the hoistway housing and the uppermost structure. A second main cable having a wiring length that is connected to the upper wiring branching device and does not depend on a building is laid in the vertical direction along the hoistway housing. .

  In the present invention, the lower end of the second main cable is connected to the lower part of the hoistway housing, and the lower wiring branching device is installed at the reference position of the wiring length, and is arranged from the lower wiring branching device to the lower part of the hoistway. You may make it branch the branch line connected to various electric equipment. The first main cable is provided with a wiring path extending in the vertical direction along the hoistway housing, and a wiring path extending in a horizontal direction perpendicular to the hoistway is provided in the uppermost structure. Also good.

  In addition, the present invention provides a hoistway in which an elevator control device, a call device at each floor, a sensor, a switch, and other various electrical devices are connected to an elevator hoistway, and power and signal transmission wiring is routed along the hoistway. An upper wiring branching device installed at the reference position of the wiring length at the uppermost structure of the hoistway housing that forms the hoistway in the space partitioned by the wall surface of the building, and installed above the hoistway A main cable connecting the control panel of the elevator control device and the upper wiring branch device, the first main cable being laid along the hoistway housing and the uppermost structure and having a wiring length independent of a building; A second main cable having a wiring length independent of a building connected to the upper wiring branching device and laid in a vertical direction along the hoistway housing. Is shall.

  According to the present invention, it becomes possible to determine the wiring length of the main cable and the branch line based on the position of the upper wiring branch device and the lower wiring branch device without depending on the structure of the building. As a result, the wiring length can be accurately grasped in the wiring arrangement so that the wiring can be made efficiently and without waste.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an elevator hoistway wiring method and apparatus according to the present invention will be described with reference to the accompanying drawings.
First embodiment
FIG. 1 shows an elevator to which a first embodiment of the present invention is applied. In FIG. 1, reference numeral 10 indicates an elevator hoistway. FIG. 2 is a diagram showing a layout of the uppermost portion of the hoistway 10.

  Reference numeral 11 is a wall surface of the building, and the hoistway 10 is provided in a space surrounded by the wall surface 11 on all sides. In the hoistway 10, rails such as car guide rails 12a and 12b and counterweight guide rails 13a and 13b extend vertically. The hoistway housing is constructed by these car guide rails 12a and 12b, counterweight guide rails 13a and 13b, and the like.

  As shown in FIG. 2, a structure called a tower 14 is installed at the top of the hoistway housing. The tower 14 includes four beams 15 assembled in four directions and is fixed to the car guide rails 12a and 12b and the counterweight guide rails 13a and 13b. Of various devices and electrical equipment necessary for the operation of the elevator, the motor 16 of the hoisting machine is installed in the tower 14.

  The control panel 17 of the elevator control device is below the tower 14 and is fixed to the counterweight rail 13b. In addition, as main equipment, a governor 18 and a high-gal seismometer 19 are installed at the top of the hoistway housing.

  A P-wave seismometer 20 is installed on the floor 21 of the pit as main equipment at the lowermost part of the hoistway 10. A landing call device 22 is installed at the landing on each floor.

  Connection is made between various control devices such as the control panel 17 of the elevator control device, the motor 16 of the hoisting machine, the landing call device 22 installed at the landing on each floor, and the P-wave seismometer 20 installed in various places. The wiring for transmitting power and signals is configured as follows.

  In FIG. 1, reference numeral 23 indicates a first main cable laid on the upper part of the hoistway 10, and reference numeral 24 indicates a second main cable laid in the vertical direction from the top of the hoistway to the bottom. Indicates. The first main cable 23 and the second main cable 24 are connected via an upper wiring branching device 26 installed in the tower 14.

  First, one end of the first main cable 23 is connected to the control panel 17. The first main cable 23 is routed along the counterweight guide rail 13b and, when reaching the tower 14, is laid horizontally along the beam 15 of the tower 14 and extends to the upper wiring branching device 26. Yes. For wiring to various electric devices arranged near the uppermost part of the hoistway, a branch line 27 branches from the upper wiring branching device 26 and travels through the girder 15 of the tower 14 and the guide rail. It extends to various places.

  On the other hand, the second main cable 24 extends downward from the upper wiring branch device 26 to the lower wiring branch device 28 along the hoistway housing. A branch line 29 branches off from the middle of the second main cable 24 and is connected to a hall call device 22 installed on each floor.

  The lower wiring branching device 28 is attached to a bracket of the car guide rail 12a and the like, and sensors such as a P-wave seismometer 20 installed on the floor 21 of the pit, and electrical devices such as various switches. Wiring is made by branch lines 30 extending from the lower wiring branching device 28.

  Next, the mode of wiring using the first main cable 23, the second main cable 24, the upper wiring branch device 26, and the lower wiring branch device 28 will be described more specifically.

1 and 2, an upper wiring branching device 26 is installed at a position serving as a reference for a predetermined wiring length in the tower 14 provided at the uppermost portion of the hoistway housing. FIG. 3 shows the uppermost part of the hoistway 10 where the upper wiring branching device 26 is installed.
The wiring length of the first main cable 23 is set based on the position of the upper wiring branching device 26 as follows.

  As shown in FIG. 1, among the wiring paths of the first main cable 23, the path of the vertical wiring portion 23 a is a path that extends vertically from the control panel 17 through the counterweight guide rail 13 b. As shown in FIG. 2, the path of the horizontal wiring portion 23 b of the first main cable 23 is a path extending horizontally through the tower 14 at the top of the hoistway housing. Since both the vertical wiring portion 23a and the horizontal wiring portion 23b use the hoistway housing for the wiring route, the wiring length can be determined without depending on the structure of the building. That is, since the structure of the hoistway housing and the installation position of the control panel 17 are standardized by the elevator model, the vertical wiring portion 23a of the first main cable 23 and the horizontal wiring portion 23a are respectively horizontal with respect to the position of the upper wiring branching device 23. The wiring length of the wiring part 23b is determined regardless of the structure of the building.

  And for wiring to sensors and switches such as the high-gal seismometer 19 installed at the top of the hoistway, branch lines 27 are branched from the upper wiring branching device 26 and wired along the hoistway housing. Thus, the wiring length of the branch line 27 is also determined based on the position of the upper wiring branching device 26. In this way, the wiring length in the upper part of the hoistway can be determined based on the position of the upper wiring branching device 26 without depending on the structure of the building. Thus, the wiring length can be accurately grasped and efficient wiring becomes possible.

  Similarly, for the second main cable 24 extending vertically along the hoistway housing from the upper wiring branching device 26 to the lower wiring branching device 28, the wiring length does not depend on the structure of the building. The positions of the branch device 26 and the lower wiring branch device 28 can be determined based on the reference. Therefore, the wiring length can be unified without depending on the building, and the wiring length of the second main cable 24 can be accurately grasped at the stage of wiring arrangement, thereby enabling efficient wiring.

  For example, a sensor 30 such as a P-wave seismometer 20 or a lobe stretch detection switch installed on the floor 21 of the pit at the bottom of the hoistway, and wiring to the switch, the branch line 30 is connected from the lower wiring branch device 28. By branching and wiring to the floor surface 21 of the pit along the car guide rail 12b constituting the hoistway housing, the wiring length of the branch line 30 is also determined based on the position of the lower wiring branching device 28. Become. As shown in FIG. 4, on the floor 21 of the pit, the buffer fixing base 33 on which the buffer 32 is installed constitutes the lowermost part of the hoistway housing, and the branch line 30 travels along this buffer fixing base 33 to the P wave. It is connected to devices such as a seismometer and a rope stretch detection switch 31. In this way, the wiring length in the lower part of the hoistway can be determined based on the position of the lower wiring branching device 28 without depending on the structure of the building. In this case, it is possible to accurately grasp the wiring length and to perform efficient wiring.

  As for the position where the lower wiring branching device 28 is installed, it is preferable to install it at the first floor level as shown in FIG. The electrical equipment such as sensors and switches installed in the pit has a waterproof structure so that water does not enter the wiring terminal even when the pit is submerged, whereas the lower wiring branching device 28 has an optional specification. The number of wires leading up to bit electrical equipment varies depending on the customer, and it is difficult to apply waterproofing. Therefore, by setting the installation height of the lower wiring branch device 28 to the first floor level, there is an advantage that the lower wiring branch device 28 can be installed at a height that does not flood, and the wiring work of the lower wiring branch device 28 is facilitated.

Second embodiment
Next, a second embodiment of the present invention will be described with reference to FIG.
While the elevator according to the first embodiment described above is a passenger elevator installed in an office building, the second embodiment is an embodiment in which the present invention is applied to a residential elevator installed in an apartment house. It is.

  A major difference between a passenger elevator and a residential elevator is that, in the residential elevator, a trunk portion is provided on the side of the car facing the door in the car. For this reason, the position of the motor 16 of the control panel 17 and the hoisting machine is set at a position different from that of the passenger elevator so that the trunk portion does not interfere when the car stops on the top floor.

  Thus, even if the arrangement of the devices such as the control panel 17 is changed, wiring can be performed as follows basically in the same manner as in the first embodiment.

  That is, the vertical wiring portion 23a of the first main cable 23 extends up to the tower 14 along the hoistway housing, and the horizontal wiring section 23b is laid horizontally along the beam 15 of the tower 14 and is connected to the upper wiring branching device 26. It extends to. For wiring to various electric devices arranged near the uppermost part of the hoistway, a branch line 27 branches from the upper wiring branching device 26 and travels through the girder 15 of the tower 14 and the guide rail. It extends to various places.

  Further, the second main cable 24 extends downward from the upper wiring branch device 26 to the lower wiring branch device 28 along the hoistway housing. A branch line 29 branches off from the middle of the second main cable 24 and is connected to the hall call device 21 installed on each floor.

  A branch line 30 extends from the lower wiring branching unit 28 and is wired to sensors such as a P-wave seismometer 20 installed on the floor surface 21 of the pit, and electrical devices such as various switches.

  As described above, even if the elevator type changes, the wiring length can be determined based on the positions of the upper wiring branching device 26 and the lower wiring branching device 28 without depending on the structure of the building. Therefore, the wiring length can be accurately grasped in the wiring arrangement so that the wiring surplus length can be reduced, and efficient wiring becomes possible.

Third embodiment
Next, a third embodiment of the present invention will be described with reference to FIG.
In the elevator to which the first embodiment and the second embodiment described above are applied, the hall call device 22 on each floor is arranged on the right side toward the boarding entrance. This is a general arrangement of the hall call device 22. Corresponding to this arrangement, the upper wiring branching device 26 is arranged as shown in FIG. 2 so that the second main cable 24 passes in the vicinity of the hall call device 22.

  However, depending on the customer specifications, the hall call device 22 may be arranged on the left side toward the entrance.

  In order to meet such specifications, the first main cable 23 is slightly extended, the upper wiring branching device 26 is installed at the position shown in FIG. 6, and the second main cable 24 passes near the hall call device 22. What should I do? As a result, it is possible to cope with the specifications with a short wiring length without changing the wiring length of the branch line connected to the hall call device 22.

Fourth embodiment
Next, a fourth embodiment of the present invention will be described with reference to FIGS. The fourth embodiment is an embodiment of the internal configuration of the upper wiring branch device 26 and the lower wiring branch device 28.

  FIG. 7 is an explanatory diagram of the internal configuration of the upper wiring branching device 26. A terminal of the first main cable 23 extending from the control panel 17 is fixed by a cable fixture 43 and connected to a connector 44. On the other hand, the terminal of the second main cable 24 is connected to the connector 45. Each branch line 27 connected to an electric device such as an individual sensor or switch installed at the top of the hoistway is connected to connectors 46 and 47, respectively. A voltage measuring device 42 is provided between the connector 44 and the connectors 45, 46, 47. The upper wiring branching device 26 branches the wiring and can monitor the voltage of the signal flowing through each wiring. It has become.

  FIG. 8 shows a display example of the voltage of the safety circuit that measures the voltage with the voltage measuring device 42. Examples of the safety circuit signal transmitted through the second main cable 24 include a pit safety device installed in the pit, a pit ladder switch, and a rope extension detection switch. Corresponding to each of these switches, the voltage measuring device 42 is provided with a lamp low 47a, a lamp middle 47b, and a lamp height 47c. As shown in FIG. 9, resistors 48a, 48b, and 48c having different resistance values are connected in parallel to the lamp low 47a, the lamp middle 47b, and the lamp height 47c. In this case, if the input voltage is 24V, the lamp low 47a is lit at a threshold value of 3V or more, the lamp 47b is lit at a threshold value of 20V, and the lamp height 47c is lit at a threshold value of 23.5V. As described above, the resistance values of the resistors 48a, 48b, and 48c are set.

  Further, in the upper wiring branch device 26 of this embodiment, in addition to monitoring the voltage of the safety circuit signal, the upper wiring branch safety device 50 is connected. The upper wiring branch safety device 50 is connected to the first main cable 22 via the voltage measuring device 42, and is connected to the control panel 17 via the first main cable 22.

  Since the upper wiring branch safety device 50 is configured such that the switch is shut off when the lid of the upper wiring branch device 26 is opened, the control panel 17 detects the cutoff of the switch. Then, the control panel 17 prevents the car from rising.

  FIG. 10 is a diagram showing the internal configuration of the lower wiring branching device 28, but basically the upper wiring is connected to the lower wiring branching device 28 except that the second main cable 24 and the branch wire 30 are connected. Since the configuration is the same as that of the branching device 26, the same components are denoted by the same reference numerals, and the description thereof is omitted. However, regarding the lower wiring branch safety device 51, when the cover of the lower wiring branch device 28 is opened, the switch is cut off, and the control panel 27 controls the car to not lower.

According to the fourth embodiment as described above, the following effects can be obtained.
As shown in FIG. 3, when inspecting the upper wiring branching device 26, the worker 100 works on the upper surface of the car 101, but stops the car 101 at a position where it can be easily worked. Therefore, the worker 100 will get on. When the worker 100 opens the lid of the upper wiring branching device 26, the safety switch is cut off and a double safety check is performed so that the car 101 can be surely prevented from rising. You can continue working with peace of mind.

  Further, in the upper wiring branching device 26, the voltage level of the safety circuit signal can be grasped visually even if a tester is not prepared by lighting the lamp lamp low 47a, the lamp middle 47b, and the lamp height 47c of the voltage measuring device 42. It becomes possible to do.

  As shown in FIG. 4, when checking the lower wiring branch device 28, the worker 100 goes down to the pit to perform the work. However, if the worker 100 opens the lower wiring branch device 26, the worker 100 is safe. Double safety checks work to ensure that the switch is shut off and the car is not lowered so that the worker can continue to work with confidence and the voltage level of the safety circuit signal is visually The point that can be made is the same.

It is a perspective view which shows the wiring condition of the elevator hoistway by 1st Embodiment of this invention. It is a top view which shows the layout of the uppermost part of the elevator hoistway. Explanatory drawing which shows the attachment position of the upper wiring branch apparatus in the uppermost part of the elevator hoistway. Explanatory drawing which shows the attachment position of the lower wiring branch apparatus in the lowest part of the elevator hoistway. It is a perspective view which shows the wiring condition of the elevator hoistway by 2nd Embodiment of this invention. It is a top view which shows the layout of the uppermost part of the elevator hoistway by 3rd Embodiment of this invention. Explanatory drawing of the internal structure of an upper wiring branch apparatus. Explanatory drawing of the display lamp of the voltage measuring apparatus of an upper wiring branch apparatus. It is a circuit diagram which shows resistance of a display lamp. Explanatory drawing of the internal structure of a lower wiring branch apparatus. It is a top view which shows the layout of the uppermost part of the conventional elevator hoistway.

DESCRIPTION OF SYMBOLS 10 Hoistway 11 Wall of building 14 Tower 15 Digit 16 Motor of hoist 17 Control panel 19 High-gal seismometer 20 P wave seismometer 22 Landing call device 23 1st main cable 24 2nd main cable 26 Upper wiring branch device 28 Lower wiring branch device

Claims (11)

A hoistway wiring method for connecting an elevator control device, a calling device for each floor landing, various electric devices such as sensors and switches to an elevator hoistway, and wiring for power and signal transmission along the hoistway,
The upper wiring branching device is installed at the reference position of the wiring length in the uppermost structure of the hoistway housing that forms the hoistway in the space partitioned by the wall of the building,
A first main cable having a wiring length that does not depend on a building connected to a control panel of an elevator control device installed at the upper part of the hoistway and the upper wiring branching device is provided along the hoistway housing and the uppermost structure. Laying
An elevator wiring hoistway method, characterized in that a second main cable connected to the upper wiring branching device and having a wiring length independent of a building is laid in a vertical direction along the hoistway housing.   The lower end of the second main cable is connected to the lower part of the hoistway housing, and the lower wiring branching device is installed at the reference position of the wiring length. From the lower wiring branching device to various electric devices arranged at the lower part of the hoistway The elevator hoistway wiring method according to claim 1, wherein branch lines to be connected are branched.   The first main cable is characterized in that a wiring path extending in the vertical direction is provided along a hoistway housing, and a wiring path extending in a horizontal direction perpendicular to the hoistway is provided in the uppermost structure. The elevator hoistway wiring method according to claim 1.   The elevator lifting / lowering according to claim 1, wherein a branch wiring route that branches from the upper wiring branching device and is connected to various electric devices arranged at the uppermost part of the hoistway is provided in the uppermost structure. Road wiring method.   The lower wiring branching device is installed at a position near the first-floor landing, and a branch wiring route extending in the vertical direction from the lower wiring branching device is provided along the hoistway housing, and is perpendicular to the hoistway. The elevator hoistway wiring method according to claim 1, wherein a branch wiring route extending in a direction is provided on a pit floor surface of the hoistway.   2. The elevator hoistway wiring method according to claim 1, wherein a wiring route is set so that the second main cable passes near a landing call device installed on each floor. A hoistway wiring device that connects an elevator control device, a call device of each floor platform, sensors, switches, and other various electrical devices to the elevator hoistway, and wires power and signal transmission along the hoistway.
An upper wiring branching device installed at the reference position of the wiring length in the uppermost structure of the hoistway housing that forms the hoistway in the space partitioned by the wall of the building;
A main cable connecting the control panel of the elevator control device installed at the upper part of the hoistway and the upper wiring branching device, and has a wiring length that is laid along the hoistway housing and the uppermost structure and does not depend on the building. A first main cable having:
The elevator hoistway wiring apparatus comprising: a second main cable connected to the upper wiring branching apparatus and having a wiring length independent of a building and laid in a vertical direction along the hoistway housing.   A lower wiring branch device connected to a lower end of the second main cable, and installed at a reference position of a wiring length at a lower portion of the hoistway housing; The elevator hoistway wiring apparatus according to claim 7, wherein a branch line connected to the electric device is branched.   In the first main cable, a wiring path extending in the vertical direction is provided along the hoistway housing, and a wiring path extending in the horizontal direction perpendicular to the hoistway is provided in the uppermost structure. The elevator hoistway wiring device according to claim 1.   9. The elevator hoistway wiring method according to claim 8, wherein each of the upper wiring branching device and the lower wiring branching device includes a voltage measuring device having display means for visually displaying the signal voltage of the safety circuit.   11. The elevator hoistway wiring according to claim 10, wherein the upper wiring branching device and the lower wiring branching device include a safety device that sends a safety switch cutoff signal to the elevator control device when the lid is opened. Method.

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