JP2010095350A - Elevator control cable device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an elevator control cable device capable of preventing reduction of a temperature in a hoistway, hardening of a coating of a control cable, enlargement of a suspension loop radius, interference of the control cable with a hoistway wall, and breakage of the control cable. <P>SOLUTION: This elevator control cable device comprises: a control cable connected to a hoistway and a car of an elevator, suspended in the hoistway, and forming an approximate U-shape at its suspension part; and a lamp device installed between a portion suspended along the hoistway wall of the control cable and the hoistway wall along the portion of the control cable, and having a lamp radiating a radiation heat to the control cable. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator control cable device.

  In a conventional elevator control cable device, when the inside of the hoistway is at a low temperature and the hanging loop radius of the control cable is large, the elevator is kept in a retracted position so that the elevator can be seen from the outside. In addition to eliminating problems that impair the appearance, when the inside of the hoistway is hot and the control cable's hanging loop radius is small, the control cable should move away from the side of the car and the control cable will come into contact with the car In order to prevent the occurrence of damage due to the car, one end is hung near the upper end of the hoistway, the other end is hung near the center of the bottom of the car, and the lower end protrudes. A control cable suspended in the hoistway to form a curved portion and a protective body provided on the operating portion and mounted on the car It is arranged opposite to the control cable at a position close to the bottom surface, is normally held in a retracted position, operates when necessary, pushes the control cable by the protector, and moves the control cable away from the side of the car. There is known one that includes an displacing operation means and a control device that operates when the temperature in the hoistway rises above a predetermined value and biases the operation means (for example, Patent Document 1). reference).

  In addition, it is possible to prevent the control cable and the car from approaching and interfering with each other with a simple structure. The elevator car and the hoistway equipment are connected. When the hoistway temperature rises, the coated vinyl softens and the bottom In an elevator control cable device that has a drooping loop radius that decreases and approaches the car, the control cable is provided on a wall of the hoistway and holds the control cable when the hoistway temperature rises. A control cable fixing tool that prevents interference with the car is known (for example, see Patent Document 2).

JP 2005-231794 A JP 2007-269991 A

  However, in any of the conventional elevator control cable devices shown in Patent Document 1 and Patent Document 2, when the inside of the hoistway is at a high temperature and the hanging loop radius of the control cable is small (FIG. 10), the control cable and the car Contrary to this, the temperature in the hoistway is lowered and the droop loop radius of the control cable is increased (FIG. 11), and the control cable and hoistway wall are increased. Is not taken into account, and there is a problem that this cannot be prevented in advance.

Conventionally, in order to prevent direct interference between the control cable and the hoistway wall when the temperature in the hoistway decreases and the covering of the control cable hardens and the drooping loop radius increases. As shown in FIGS. 6 to 9, it is known to cover the hoistway wall along the hoistway wall to prevent direct contact between the hoistway concrete wall, hoistway installation equipment, and the control cable. .
That is, in the figure, reference numeral 1 denotes an elevator hoistway, and a pair of car rails 18 arranged opposite to each other and a pair of weight rails 20 arranged opposite to each other are erected in the hoistway 1. The car 2 is guided to the car rail 18 and the counterweight 19 is guided to the weight rail 20 so as to be raised and lowered in the hoistway 1.
The car 2 is electrically connected to a control panel (not shown) that controls the overall operation of the elevator by a control cable 3, and this control cable 3 is provided on the hoistway wall 1 a in the hoistway 1. The hoistway cable hanger (not shown) and the car cable hanger 4 provided on the car lower frame 2b are connected to the hoistway 1 and are suspended.
A car door 2c is provided at the car doorway provided in front of the car 2 so as to be openable and closable. The car door 2 is provided at a position facing the car doorway when the car 2 stops at the landing floor. A landing door 21 is provided at the landing doorway so as to be freely opened and closed.

Since one end of the control cable 3 is connected to the hoistway cable suspension provided on the hoistway wall 1a, a part of the control cable 3 is suspended along the hoistway wall 1a. .
A cable protection wire mesh 5 is provided between a portion of the control cable 3 suspended along the hoistway wall 1a and the hoistway wall 1a.
This cable protection wire mesh 5 has a wire mesh holding plate 5b and a protection wire mesh attachment arm 5a provided by extending one side of a rail bracket used to fix the car rail 18 to the hoistway wall 1a. By being fixed using a wire mesh holding screw 5c, the control cable 3 is disposed between the hoistway wall 1a and a portion suspended along the hoistway wall 1a, and the control cable 3 is connected to the hoistway. The direct contact with the wall 1a is prevented.
However, although it is a protective wire mesh, there are many cases where damage to the control cable occurs when it comes into contact with the control cable over and over again. When the inside of the hoistway is at a low temperature, contact with the hoistway wall of the control cable, etc. There is a problem that the damage that occurs is not completely prevented.

  The present invention has been made to solve the above-described problems. The temperature in the hoistway is lowered, the control cable is hardened, and the droop loop radius is increased, and the control cable and hoistway wall or It is an object of the present invention to provide an elevator control cable device that can prevent a control cable from being damaged due to interference with a protective wire mesh.

  In the elevator control cable device according to the present invention, the control cable is connected to the elevator hoistway wall and suspended in the hoistway, and the hanging part of the control cable is substantially U-shaped, and the control cable. A lamp device having a lamp that is provided along the portion of the control cable between the portion suspended along the hoistway wall and the hoistway wall, and that irradiates the control cable with radiant heat; It is set as the structure provided with.

  Further, the elevator cable is connected to the elevator hoistway wall and suspended in the hoistway, and the hanging part of the control cable has a substantially U shape, and is formed over the longitudinal direction of the control cable. A hollow hole, a heater that warms the air to generate warm air, and a blower fan that sends warm air generated by the heater as warm air to the hollow hole.

  The present invention relates to an elevator control cable device, wherein the elevator cable is connected to a hoistway wall of the elevator and suspended in the hoistway, and the hanging part of the control cable has a substantially U shape, and the control cable A lamp device having a lamp provided along the portion of the control cable between the portion suspended along the hoistway wall and the hoistway wall, and radiating radiant heat to the control cable. With this configuration, the temperature inside the hoistway decreases, the control cable covering hardens, the droop loop radius increases, and the control cable and hoistway wall interfere with each other, causing damage to the control cable. There is an effect that it can be prevented beforehand.

  Further, in the elevator control cable device, the elevator cable is connected to the elevator hoistway wall and suspended in the hoistway, and the hanging portion of the control cable has a substantially U shape, and the longitudinal length in the control cable. A configuration comprising: a hollow hole formed in a direction; a heater that warms air to generate warm air; and a blower fan that sends warm air generated by the heater as warm air to the hollow hole; Even with this, the same effect can be achieved.

  The present invention will be described with reference to the accompanying drawings. Throughout the drawings, the same reference numerals indicate the same or corresponding parts, and redundant description thereof will be simplified or omitted as appropriate.

Embodiment 1 FIG.
1 and 2 relate to Embodiment 1 of the present invention, FIG. 1 is a sectional view of an elevator hoistway, and FIG. 2 is an enlarged view of a portion A in FIG.
In the figure, reference numeral 1 denotes a hoistway standing in a building where an elevator is installed. A car 2 is disposed in the hoistway 1 so as to be movable up and down, and a car floor 2 a forming a floor portion of the car 2 is supported by a car lower frame 2 b provided below the car 2. Has been.
The car 2 is electrically connected to a control panel (not shown) that controls the overall operation of the elevator by a control cable 3, and this control cable 3 is provided on the hoistway wall 1 a in the hoistway 1. The hoistway cable hanger (not shown) and the car cable hanger 4 provided on the car lower frame 2b are connected to and hung in the hoistway 1.

The drooping portion of the control cable 3 has a substantially U shape, and the curvature radius (droop loop radius) of the substantially U shape portion changes depending on the temperature in the hoistway 1.
That is, when the inside of the hoistway 1 is at a high temperature, the vinyl sheath of the control cable 3 is softened, so that the droop loop radius is reduced (see FIG. 10). On the other hand, when the inside of the hoistway 1 is at a low temperature, the vinyl covering of the control cable 3 is cured, so that the droop loop radius is increased (see FIG. 11).

Since one end of the control cable 3 is connected to the hoistway cable suspension provided on the hoistway wall 1a, a part of the control cable 3 is suspended along the hoistway wall 1a. .
A cable protection wire mesh 5 is provided between a portion of the control cable 3 suspended along the hoistway wall 1a and the hoistway wall 1a.
For example, as shown in FIGS. 6 to 9, the cable protection wire mesh 5 is attached to a protection wire mesh provided by extending one side of a rail bracket used to fix the car rail 18 to the hoistway wall 1a. The arm 5a is fixed to the arm 5a by using a wire mesh retainer plate 5b and a wire mesh retainer screw 5c so that the control cable 3 is suspended between a portion suspended along the hoistway wall 1a and the hoistway wall 1a. Has been placed.

Between the portion of the control cable 3 suspended along the hoistway wall 1a and the hoistway wall 1a and between the cable protection wire mesh 5 and the hoistway wall 1a. A plurality of lamp devices 6 for warming the control cable 3 when the inside of the hoistway 1 is at a low temperature are provided along a portion of the control cable 3 suspended along the hoistway wall 1a.
A lamp 6a (preferably a halogen lamp) of the lamp device 6 is attached to a lamp socket 6b, and light and radiant heat emitted from the lamp 6a are transmitted to the back side of the lamp 6a, that is, the hoistway wall 1a side. A reflector 6c for efficiently irradiating the control cable 3 is provided.

Electric power for lighting the lamp 6a is supplied through an electrical wiring 7 having one end connected to the lamp socket 6b and the other end connected to a power source (not shown). The electrical wiring 7 is provided with a switch 8. The switch 8 is normally opened to cut off the current, and the inside of the hoistway 1 is predetermined by a temperature sensor 9 provided in the vicinity. When it is detected that the temperature is lower than the reference temperature, it is closed and energized.
Here, the temperature sensor 9 and the switch 8 may be directly linked to each other, or the detection result of the temperature sensor 9 is once transmitted to the control panel, and the switch 8 is controlled by the control panel. Opening and closing operations may be performed.

In the elevator control cable device configured as described above, at the normal time, that is, when it is detected by the temperature sensor 9 that the temperature in the hoistway 1 is not lower than the reference temperature, the switch 8 is The lamp 6a is open and the lamp 6a is off.
On the other hand, when the temperature sensor 9 detects that the inside of the hoistway 1 is lower than the reference temperature, the switch 8 is closed and the lamp 6a is turned on.
The radiant heat emitted from the lit lamp 6a warms and softens the vinyl coating of the control cable 3 that has been cured at a low temperature, and the large drooping loop radius is reduced.

In the elevator control cable device configured as described above, the elevator is provided with a control cable which is connected to the hoistway wall and suspended in the hoistway, and the hanging part of which is substantially U-shaped. A lamp device having a lamp provided along the portion of the control cable between the portion suspended along the hoistway wall of the control cable and the hoistway wall and irradiating the control cable with radiant heat. As a result, the temperature in the hoistway decreases, the control cable coating hardens, the droop loop radius increases, and the control cable interferes with the hoistway wall or protective wire mesh, causing damage to the control cable. Can be prevented in advance.
For this reason, it is possible to extend the life of the control cable.

  In addition, the lamp device is provided in the hoistway and detects that the temperature in the hoistway is lower than a predetermined reference temperature. In normal times, the current to the lamp is cut off, and the temperature sensor By providing a switch that energizes the lamp when it is detected that the temperature in the hoistway is lower than the reference temperature, the temperature in the hoistway becomes lower than the reference temperature, and the lamp is irradiated to control cable Only when it is necessary to warm the vinyl coating of the lamp can the lamp irradiation be performed accurately.

  In addition, regarding the energization to the lamp, the energization of all the lamps may be controlled based on the detection result of the temperature sensor provided in the hoistway, or a temperature sensor that operates independently for each lamp device, and A switch may be provided so that each lamp device operates independently according to the temperature in the vicinity of the installation location of each lamp device.

Embodiment 2. FIG.
3 and 4 relate to the second embodiment of the present invention. FIG. 3 is a cross-sectional view of the control cable, and FIG. 4 is a diagram for explaining a main part of the elevator control cable device.
In Embodiment 1 described above, when the inside of the hoistway is cold, the control cable is irradiated with lamp light to warm and soften the vinyl coating of the control cable cured by the radiant heat, thereby reducing the drooping loop radius. However, in the second embodiment described here, the control cable is hardened by forming a hollow hole along the longitudinal direction in the control cable and flowing warm air through the hollow hole when the inside of the hoistway is at a low temperature. The vinyl coating is warmed and softened to reduce the drooping loop radius.
That is, the control cable 3 is a flat cable as shown in FIG. 3, and is used for exchanging control signals and supplying power between the control panel and the devices in the car 2 in the vinyl sheath. A control wiring 10 is embedded.
A hollow hole 11 is formed in the flat control cable 3 at positions near the left and right side ends along the longitudinal direction of the control cable 3.
A control cable presser plate 12 is provided on the hoistway cable suspension side of the control cable 3, and an air blowing pipe 13 is connected to the hollow hole of the control cable 3 in the vicinity below the control cable presser plate 12. 11 is connected.
A blower fan 14 is connected to the side of the air blower pipe 13 opposite to the hollow hole 11, and the blower fan 14 supplies warm air heated by the heater 16 through the connection pipe 15, Hot air is sent into the hollow hole 11 through the air blowing pipe 13.
A temperature sensor 9 is provided in the hoistway 1. When the temperature sensor 9 detects that the temperature in the hoistway 1 is lower than a predetermined reference temperature, the control panel detects the temperature sensor 9. Based on the result, the blower fan 14 and the heater 16 are operated to send warm air into the hollow hole 11.
The remaining configuration is the same as that of the first embodiment except that the above-described points are provided in place of the lamp device 6.

In the elevator control cable device configured as described above, at the normal time, that is, when the temperature sensor 9 detects that the temperature in the hoistway 1 is not lower than the reference temperature, the blower fan 14 and the heater 16 are not operating.
On the other hand, when it is detected by the temperature sensor 9 that the temperature inside the hoistway 1 is lower than the reference temperature, the control panel operates the blower fan 14 and the heater 16.
The warm air heated by the heater 16 is sent into the hollow hole 11 as warm air by the blower fan 14, and the vinyl covering of the control cable 3 that has been cured at low temperature by the heat of the warm air. Is warmed and softened, and the drooping loop radius, which was large, becomes small.

  In the elevator control cable device configured as described above, the elevator control cable device is connected to the elevator hoistway wall and suspended in the hoistway, and the hanging part of the elevator control cable device is substantially U-shaped. A hollow hole is formed in the longitudinal direction, and warm air generated by a heater that warms the air to generate warm air is sent as warm air to the hollow hole by a blower fan, so that it is the same as in the first embodiment. There is an effect.

  In addition, a temperature sensor is provided in the hoistway to detect that the temperature in the hoistway is lower than a predetermined reference temperature. The blower fan and the heater are lower than the reference temperature in the hoistway by the temperature sensor. It is activated when it is detected that the temperature has been reached, so that the hot air is accurately blown only when the temperature inside the hoistway is lower than the reference temperature and it is necessary to warm the vinyl sheath of the control cable. It can be sent to the hollow hole of the control cable.

Embodiment 3 FIG.
FIG. 5 relates to Embodiment 3 of the present invention and is a cross-sectional view of a control cable.
Embodiment 2 mentioned above forms a hollow hole along a longitudinal direction in a control cable, and warms the vinyl covering of the hardened control cable by flowing warm air through the hollow hole when the inside of the hoistway is at a low temperature. In the second embodiment described here, a nichrome wire is provided in place of the hollow hole in the control cable, and a current is supplied to the nichrome wire when the hoistway is at a low temperature. The vinyl coating of the cured control cable is warmed and softened by Joule heat generated by the flow of, and the drooping loop radius is reduced.
That is, a nichrome wire 17 is embedded in the vinyl coating of the flat control cable 3 over the longitudinal direction of the control cable 3, and the nichrome wire 17 warms the vinyl coating uniformly. As necessary, a plurality of wires are embedded in parallel at predetermined intervals over the width direction of the flat plate.
The other configurations are substantially the same as those of the second embodiment described above, that is, a temperature sensor is provided in the hoistway 1, and the hoistway 1 is provided with a predetermined reference by the temperature sensor. When it is detected that the temperature is lower than the temperature, the control panel is configured to switch on the nichrome wire 17 based on the detection result and to allow current to flow through the nichrome wire 17.

In the elevator control cable device configured as described above, in the normal state, that is, when the temperature sensor detects that the temperature in the hoistway 1 is not lower than the reference temperature, the nichrome wire 17 The switch is disconnected, and the nichrome wire 17 is not energized.
On the other hand, when it is detected by the temperature sensor that the temperature inside the hoistway 1 is lower than the reference temperature, the control panel turns on the switch of the nichrome wire 17 and the nichrome wire 17 A current is passed through.
Then, due to the Joule heat generated in the nichrome wire 17, the vinyl covering of the control cable 3 that has been cured at a low temperature is warmed and softened, and the large drooping loop radius is reduced.

  In the elevator control cable device configured as described above, the elevator control cable device is connected to the elevator hoistway wall and suspended in the hoistway, and the hanging part of the elevator control cable device is substantially U-shaped. A nichrome wire embedded in the longitudinal direction; and a temperature sensor provided in the hoistway for detecting that the temperature in the hoistway is lower than a predetermined reference temperature. Thus, when it is detected that the inside of the hoistway is at a temperature lower than the reference temperature, the same effect as in the first or second embodiment can be obtained.

It is sectional drawing of the hoistway of the elevator in Embodiment 1 of this invention. It is an enlarged view of the A section in FIG. 1 in Embodiment 1 of this invention. It is sectional drawing of the control cable in Embodiment 2 of this invention. It is a figure explaining the principal part of the elevator control cable apparatus in Embodiment 2 of this invention. It is sectional drawing of the control cable in Embodiment 3 of this invention. It is a top view of the hoistway of the conventional elevator. It is an enlarged view of the B section in FIG. 6 in the past. It is an enlarged front view of the B section in FIG. 6 in the past. It is the perspective view of the hoistway and the passenger car of the conventional elevator. It is explanatory drawing which shows the drooping loop radius of the control cable when the hoistway temperature in the past is high. It is explanatory drawing which shows the drooping loop radius of the control cable when the hoistway temperature in the past is low.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 1a Hoistway wall 2 Car cage 2a Car floor 2b Car lower frame 2c Car door 3 Control cable 4 Car cable suspension 5 Cable protection wire mesh 5a Protection wire mesh attachment arm 5b Wire mesh holding plate 5c Wire mesh holding screw 6 Lamp device 6a Lamp 6b Lamp socket 6c Reflector 7 Electrical wiring 8 Switch 9 Temperature sensor 10 Control wiring 11 Hollow hole 12 Control cable presser plate 13 Air blower pipe 14 Blower fan 15 Connection pipe 16 Heater 17 Nichrome wire 18 Cage rail 19 Counterweight 20 Weight Rail 21 platform door

Claims (5)

A control cable connected to the elevator hoistway wall and suspended in the hoistway and suspended in the hoistway;
A lamp having a lamp provided along the portion of the control cable between the portion of the control cable suspended along the hoistway wall and the hoistway wall and irradiating the control cable with radiant heat And an elevator control cable device. The lamp device includes:
A temperature sensor provided in the hoistway for detecting that the hoistway is at a temperature lower than a predetermined reference temperature;
A switch that cuts off the current to the lamp in a normal state and energizes the lamp when the temperature sensor detects that the temperature in the hoistway is lower than the reference temperature. The elevator control cable device according to claim 1. A control cable connected to the elevator hoistway wall and suspended in the hoistway and suspended in the hoistway;
A hollow hole formed along the longitudinal direction in the control cable;
A heater that warms the air and generates warm air;
An elevator control cable device comprising: a blower fan that sends warm air generated by the heater as warm air to the hollow hole. A temperature sensor provided in the hoistway for detecting that the hoistway is at a temperature lower than a predetermined reference temperature;
The elevator control according to claim 3, wherein the blower fan and the heater are operated when the temperature sensor detects that the temperature in the hoistway is lower than the reference temperature. Cable device. A control cable connected to the elevator hoistway wall and suspended in the hoistway and suspended in the hoistway;
Nichrome wire embedded over the longitudinal direction in the control cable;
A temperature sensor provided in the hoistway and detecting that the temperature in the hoistway is lower than a predetermined reference temperature;
The elevator control cable device according to claim 1, wherein the nichrome wire is energized when it is detected by the temperature sensor that the temperature in the hoistway is lower than the reference temperature.

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