JPH07257883A - Wire slipoff preventive device of winder - Google Patents

Abstract

PURPOSE:To provide a wire slipoff preventing device for winder, with which wire is prevented from slipping off from the winder in the air and which permits the winder to be operated regardless of existence or not of wire while it is located on the ground etc. CONSTITUTION:A winder 4 is installed on a winder framing 11 using a long hole 12 and a pin 13 so that the up-down positioning of the winder differs in the air. where a load is applied to wire 2, from when it is located on the ground. This is sensed by a ground/air sensing limit switch 24, and under the winder 4 a guide roller 25a in which the wire 2 is inserted is moved in the direction of pinching so that the limit switch 24 is actuated, and thus existence of wire 2 is sensed Thereby the winder 4 is stopped by a control device 28 only when such a condition is generated that no wire exists in the air, so that wire slipping-off is precluded; on the ground the winder 4 is operated freely even without wire 2 and the wire setting is performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire retaining device for a winder, and a gondola or the like that moves up and down along a wire suspended from the upper end of a structure descends down to a portion where there is no wire. This is to prevent this.

[0002]

2. Description of the Related Art In order to carry out work at high places such as building, ships, power plants, bridges, and other structures at high altitudes safely and efficiently, use gondola devices instead of conventional temporary scaffolds. There are many, for example, as shown in FIG. 9, one end of the wire 2 is fixed and suspended at the upper end of the structure 1, and the winder (hoisting machine) 4 installed in the gondola 3 is driven to move the gondola 3 Work is performed by moving up and down along the wire 2.

In the winder 4 used in such a gondola device or the like, the wire 2 is wound around a rotary sheave in which a drive motor and a brake device are connected, and the winder 4 is generated between the rotary sheave and the wire 2. It is possible to move up and down along the wire 2 or to stop at a predetermined position by using the holding force of the frictional force.

[0004]

However, when the gondola 3 and the like are moved up and down using such a winder 4, if the length of the wire 2 suspended from the upper end of the structure 1 is short,
The wire 2 wound around the winder 4 may come off during the descent, and the gondola 3 may fall.

Therefore, a sensor for detecting the presence / absence of a wire is provided, and the motor for driving the rotary sheave of the winder is stopped by detecting the sensor before the wire is removed from the winder.
It is possible to activate the brake, but
For example, when installing a gondola in a structure, if you try to set a wire on a winder attached to a gondola placed on the roof or on the ground, the sensor will detect the absence of the wire and the winder cannot be operated. Can not be set.

On the other hand, it is conceivable to switch the detection signal of the sensor for detecting the presence or absence of the wire by using a changeover switch or the like so as not to be used. However, if the winder is used without resetting, the sensor does not function at all. Since it becomes impossible to detect the disconnection of the wire, it is not preferable to provide the changeover switch for safety.

The present invention has been made in view of the above-mentioned problems of the prior art. In the air, which causes the gondola to fall, the wire can be prevented from coming off from the winder, and when the wire is set on the ground or the like. SUMMARY OF THE INVENTION An object of the present invention is to provide a wire stopper device for a winder that can operate the winder without any trouble.

[0008]

In order to solve the above-mentioned problems, a wire stopper device for a winder according to claim 1 of the present invention is arranged such that each winder is attached along a wire wound around a sheave driven to rotate of the winder. A wire retaining device provided for an elevating body to be elevated and lowered, wherein the winder is supported on the elevating body so as to be vertically movable between the ground and the air depending on the presence / absence of a load applied to the wire, while the winder vertically moves to the ground. A ground air detection limit switch for detecting the air is provided, and a pair of wire guide rollers that can move in the wire clamping direction are provided under the winder of the wire wound around this winder. A wire presence / absence detection limit switch that detects the presence / absence of a wire by moving the In which characterized in that a control device for outputting a control signal for stopping the winder only when there is no presence of the wire in the air by the detection signal and the off signal of the terrestrial aerial detection limit switch switches.

A wire retaining device for a winder according to a second aspect of the present invention is the same as that of the first aspect,
The wire air presence / absence detection limit switch is omitted and the wire presence / absence detection limit switch is also used, while the wire presence / absence detection limit switch is configured to be operable above and below the winder via a link mechanism. .

Further, a wire retaining device for a winder according to a third aspect of the present invention is replaced with the structure according to the first aspect, the wire guide roller is replaced, and a swing arm that swings depending on the presence or absence of a wire is provided. This swing arm operates the wire presence / absence detection limit switch.

A wire pullout prevention device for a winder according to a fourth aspect of the present invention has a structure according to the first aspect.
The ground air detection limit switch is omitted and the wire presence / absence detection limit switch operated by the swing arm is also used, while an auxiliary arm is integrally provided on the swing arm to detect a vertical movement of the winder. It is characterized in that it is swingable.

[0012]

According to the wire retaining device for a winder according to the first aspect of the present invention, the winder is attached to the elevating body so that the winder can move up and down, and the vertical position of the winder is changed between the air and the ground where a load is applied to the wire. This is detected by the ground air detection limit switch, and the guide roller, through which the wire is inserted below the winder, can be moved in the clamping direction, and the wire presence / absence detection limit switch is detected from the movement of the guide roller. Therefore, the winder can be stopped by stopping the winder only when there is no wire in the air by the control device, while on the ground, the winder can be freely moved without the wire. I am able to drive.

According to the wire retaining device for a winder according to claim 2 of the present invention, the ground air detection limit switch according to claim 1 is omitted, and the vertical movement of the winder is detected by the wire mechanism as a wire presence / absence detection limit switch. The wire presence / absence detection limit switch is turned off only when there is no wire and it is in the air, so that the control device can automatically switch without any change. On the ground, the winder can be operated without the wire, and in the air, the winder can be stopped when the absence of the wire is detected.

Further, according to the wire retaining device for a winder according to a third aspect of the present invention, a swing arm is provided instead of the detection of the presence or absence of the wire by the movement of the guide roller that presses the wire. The wire presence / absence detection limit switch is made to operate, and this also allows the control device to automatically and without any switching, on the ground,
The winder can be operated without the wire, and in the air, the winder can be stopped when the absence of the wire is detected.

According to a fourth aspect of the present invention, there is provided a wire removal preventing device for a winder, wherein an auxiliary arm is attached to the swing arm and the auxiliary arm is brought into contact with a detection rod for detecting a vertical movement of the winder. The wire presence / absence detection limit switch is turned off only when there is no wire and it is in the air, so that there is no need to switch between one limit switch and the control device. The winder can be automatically operated on the ground without a wire, and in the air, the winder can be stopped when a wire-free state is detected.

[0016]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 to 3 relate to an embodiment of a wire retaining device for a winder according to the present invention. FIG. 1 is a sectional view in the air, FIG. 2 is a sectional view in the ground, and FIG. 3 is an enlarged sectional view. Is.

The wire retaining device 10 of this winder
For example, as shown in FIG. 9, the gondola 3 and the winder 4 are used to prevent the wire 2 from being wound around the winder 4 for raising and lowering the gondola 3 used for the work on the outer wall of the structure 1.
Is performed only when the vehicle is in the air, and the winder 4 can freely operate on the ground.

The wire retaining device 10 of this winder
Then, long holes 12 that are long in the vertical direction are formed on both sides of the winder mount 11 for mounting the winder 4 on the gondola 3, and the pins 13 of the winder 4 are attached to these two long holes 12 and the winder mount 11 is attached. On the other hand, the winder 4 can be moved up and down by the length of the long hole 12.

Further, the winder mount 11 is formed with a through hole 14 through which the end of the wire 2 wound around the winder 4 is inserted, and the size of the through hole 14 projects below the winder 4. The protruding portion 4a is also adapted to be able to enter.

Therefore, when the gondola 3 and the winder 4 are in the air, a load is applied to the wire 2, so that the winder 4 is pulled up with respect to the winder mount 11 and the pin 13 is provided at the upper end of the slot 12. On the other hand, when the gondola 3 and the winder 4 are on the ground or the like, the load is not applied to the wire 2 and the winder 4 is placed on the winder mount 11 by its own weight. The pin 13 is located at the lower end of the elongated hole 12 and the projecting portion 4a of the winder 4 is located in the through hole 14 of the winder mount 11 (see FIG. 2). The winder 4 moves vertically with respect to the winder mount 11. To detect the air and the ground.

Therefore, a box-shaped sensor mount 15 is attached to the winder mount 11 below the through hole 14 through which the end of the wire 2 wound around the winder 4 hangs down, and a position corresponding to the through hole 14 is provided. A wire hole 16 is formed so as to vertically penetrate therethrough.

Then, a substantially cylindrical wire guide 1 which moves up and down into the wire hole 16 on the upper surface of the sensor mount 15.
7 is mounted, and a spring 18 is interposed between the large diameter portion 17a formed at the upper end and the upper surface of the sensor mounting base 15 to urge the wire guide 17 upward. On the outer periphery of the lower end portion, a cam 17b having an inclined surface formed by cutting off in a cone shape is formed. A stopper ring 17c that regulates the upper end position is attached to the wire guide 17.

The cam 17b of the wire guide 17 includes
The cam roller 21 at the tip of the arm 20 attached to the upper part of the swing link 19 having the intermediate portion supported is adapted to come into contact and roll, and the vertical movement of the wire guide 17 causes the cam 17b to move up and down. Moves to the left and right, which causes the swing link 19 to swing.

The swing link 19 has a spring 2 at the upper end.
The cam roller 21 is always pressed against the cam 17b of the wire guide 17 by being contacted by the cam roller 2. A horizontal link 23 is connected to the lower end of the swing link 19,
The limit switch 24 is turned on / off at the tip of the horizontal link 23.

Therefore, when the wire guide 17 is pushed down by the projecting portion 4a of the winder 4 and is on the ground, the cam roller 21 is pushed back by the cam 17b against the spring 22, and the swing link 19 is moved. The connected horizontal link 23 is pushed out, the limit switch 24 is turned on, and conversely, when the winder 4 is in the air, the winder 4 rises, so that the horizontal link 23 is pulled back through the swing link 19, When the limit switch 24 is turned off, the ground and the air can be detected.

Further, on the sensor mounting base 15, a pair of wire guide rollers 25 is arranged on both left and right sides of the wire hole 16 where the wire 2 hangs down, and one wire guide roller 25a can move in the left and right directions. Thus, the wire guide roller 25b is supported by the elongated hole 23a of the horizontal link 23, and the other wire guide roller 25b is supported by the sensor mounting base 15, so that the wire 2 can be sandwiched by the two wire guide rollers 25a, 25b. Is pressed by a spring 26.

The outer peripheral end of the moving wire guide roller 25a is arranged at a position where the limit switch 24 can be turned on / off, and when the wire 2 is inserted between the wire guide rollers 25 and the wire guide roller 25a moves to the outside. Turn on the limit switch 24, and vice versa.
The limit switch 24 is turned off when the wire guide roller 25a is pushed back inwardly.

Therefore, the limit switch 24 is turned on both when it is pushed by the horizontal link 23 and when it is pushed by the wire guide roller 25a, and it is turned off unless both are retracted. There is no such thing.

Although only one limit switch 24 is used to turn on / off both the guide roller 25a and the horizontal link 23, as shown in FIG. It is also possible to provide a limit switch for detecting the presence / absence of a wire that is turned on / off, and provide a limit switch 27 separately for the horizontal link 23 to serve as a ground air detection limit switch.

Such a limit switch 24 (27)
Is inputted to the control device 28, and the operation of the winder 4 can be controlled by the control device 28.

The operation of the wire retaining device 10 of the winder thus constructed and the operation of retaining the wire will be described.

A. When it is necessary to prevent the wire from coming off in the air When the gondola 3 and winder 4 are in the air,
As shown in FIG. 1, the gondola 3 and the winder 4 are suspended from the wire 2, and the long hole 1 of the winder mount 11 is
2, the pin 13 of the winder 4 is positioned at the upper end, and the winder 4 rises by the length of the long hole 12.

Then, when the winder 4 is lifted, the wire guide 17 which is in contact with the protruding portion 4a is pushed up by the spring 18 and enters the through hole 14 of the winder mount 11.

When the wire guide 17 is raised in this way,
The cam roller 21 in contact with the cam 17b of the wire guide 17 is pushed out by the spring 22, and the horizontal link 23 connected to the swing link 19 via the arm 20 is pushed back.

Therefore, the limit switch 24 is turned off, and it is detected that it is in the air.

In this state, the two wire guide rollers 2
If the wire 2 exists between the wires 5a and 25b, the wire guide roller 25a is pushed outward and the limit switch 24 is turned on, so that the controller 28 can continue the operation of the winder 4.

On the other hand, when the end of the wire 2 passes through the wire guide rollers 25a and 25b in a state where the wire 2 comes out of the winder 4, the wire guide roller 25
Since a is pushed back by the spring 26, the limit switch 24 is turned off, and since the signal of the limit switch 24 by the horizontal link 23 is also turned off because it is in the air, disconnection of the wire 2 is detected, and the control device 28 By outputting the stop signal to the winder 4, the wire 2 is prevented from coming off.

The operation of preventing the wire 2 from coming off is as follows.
The same applies to the case where only one limit switch 24 is provided and the case where two limit switches 27 are provided. When there is only one limit switch, it is not possible to distinguish whether it is on the ground or in the air. It is possible to detect whether or not it is necessary to prevent omission.

B. When it is necessary to set the wires on the ground or on the roof When the gondola 3 and winder 4 are on the ground or on the roof, as shown in FIG. 2, the load is not applied to the gondola 3 and winder 4 via the wire 2. , The pin 13 of the winder 4 is positioned at the lower end with respect to the long hole 12 of the winder mount 11, and the winder 4 is mounted on the winder mount 1.
1 is placed in the descending state.

Then, as the winder 4 descends, the protrusion 4a enters the through hole 14 of the winder frame 11, and the wire guide 17 abutting against the protrusion 4a is pushed down against the spring 18. It becomes a state.

When the wire guide 17 descends in this way,
The cam 17b of the wire guide 17 is also lowered to move the cam roller 2
1 is pushed back against the spring 22, and the horizontal link 23 connected to the swing link 19 via the arm 20.
Is pushed out, the limit switch 24 is turned on, and it is detected that the vehicle is on the ground.

On the other hand, the wire guide rollers 25a and 25b
Since there is no wire 2 between the wire guide roller 25a
Is pushed back by the spring 26, and the limit switch 24 is turned off.

The state of such a limit switch 24,
That is, since the signal for turning on the limit switch 24 is input to the control device 28, the operation of the winder 4 can be continued via the control device 28 regardless of the presence or absence of the wire 2.

Therefore, it is possible to set the wire 2 for winding the wire 2 around the rotary sheave while operating the winder 4.

Table 1 shows the relationship between the position of the winder and the operable state of the winder as shown in Table 1. (a) shows the case where two limit switches are provided, and (b) shows ) Indicates the case where one limit switch is configured.

[0046]

[Table 1]

As described above, according to the wire retaining device 10 of the winder, the wire 2 can be automatically prevented from coming off only when the wire 2 comes out in the air, and on the ground or the roof, You can insert the wire 2 and set it.

Next, an embodiment of a wire retaining device for a winder of another invention will be described with reference to FIGS.

Wire stopper device 30 of this winder
Are different in the configuration for detecting whether the gondola 3 and the winder 4 are on the ground or in the air, and the arrangement of limit switches for detecting the presence / absence of wires.

In the wire stopper device 30 of the winder, a wire presence / absence detection limit switch 31 for detecting the presence / absence of the wire 2 is mounted in the winder 4, and is turned on / off by swinging the limit switch 31. A roller 33 is attached to the tip of the arm 32, and the roller 33 swings between a state in which the roller 33 is in contact with the side surface of the wire wound around the rotary sheave of the winder 4 and a state in which the wire is not in contact. The presence / absence detection limit switch 31 is turned on / off to detect the presence / absence of the wire 2.

When the wire retaining device 30 of the winder detects the ground and the air, the winder 4 is attached to the winder mount 11 through the long hole 12 and the pin 13, and the winder 4 is attached to the bottom of the winder 4. A through hole 34 is formed so as to face the surface of the winder mount 11, and a vertically movable ground detection rod 35 is attached to the through hole 34.

Then, the wire presence / absence detection limit switch 31 is also integrally assisted by the arm 32 which is turned on / off by swinging the wire presence / absence detection limit switch 31 so that the wire presence / absence detection limit switch 31 is also used to detect the ground and the air. Arm 3
6 is provided, and the roller 37 at its tip is in contact with the upper surface of the ground detection rod 35.

The wire presence / absence detection limit switch 3
Although there is only one switch, the two swinging arms 32 and the auxiliary arm 36 are both turned on and off. However, as shown in FIG. Apart from 31, it is also possible to provide a ground air detection limit switch 38 that is turned on / off by an auxiliary arm 36.

The detection signal of the wire presence / absence detection limit switch 31 (ground air detection limit switch 38) is input to the control device 39, and the operation of the winder 4 can be controlled by the control device 39.

The operation of the wire retaining device 30 of the winder thus constructed and the prevention of the wire detachment will be described.

A. When it is necessary to prevent the wires from coming off in the air When the gondola 3 and winder 4 are in the air,
As shown in FIG. 1, the gondola 3 and the winder 4 are suspended from the wire 2, and the long hole 1 of the winder mount 11 is
2, the pin 13 of the winder 4 is positioned at the upper end, and the winder 4 rises by the length of the long hole 12.

Then, as the winder 4 rises, the bottom surface of the winder 4 rises, the ground detection rod 35 located in the through hole 34 relatively lowers, and the roller 37 of the auxiliary arm 36 swings downward. Then, the wire presence / absence detection limit switch 31 is turned off.

In this state, if the wire 2 hangs down from the winder 4, the arm 32 is pushed back by the roller 33 contacting the side surface of the wire 2 and the wire presence / absence detection limit switch 31 is turned on.

In this way, the detection signal of the wire presence / absence detection limit switch 31 is input to the control device 39, but the operation of the winder 4 can be continued via the control device 39 by inputting the ON signal due to the presence of the wire 2. .

On the other hand, when the wire 2 comes out of the winder 4 and the end of the wire 2 passes the roller 33 of the arm 32, the arm 32 is pushed upward and the wire 32 detection limit by the arm 32 is reached. The switch 31 is also turned off, and the control device 39
Only the OFF signal is input, and the control device 39 outputs a stop signal to the winder 4 to prevent the wire 2 from coming off.

B. When wires need to be set on the ground or on the roof When the gondola 3 and winder 4 are on the ground or on the roof, as shown in FIG. 6, no load is applied to the gondola 3 and winder 4 via the wire 2. , The pin 13 of the winder 4 is positioned at the lower end with respect to the long hole 12 of the winder mount 11, and the winder 4 is mounted on the winder mount 1.
1 is placed in the descending state.

Then, the lowering of the winder 4 causes the ground detection rod 35 located in the through hole 34 of the winder 4 to be relatively raised, whereby the roller 3 of the auxiliary arm 36 is moved.
7 is swung so as to be upward, and the wire presence / absence detection limit switch 31 is turned on.

If the wire 2 is not present in this state, there is no force to push the arm 32 downward via the roller 33 and the wire presence / absence detection limit switch 31 is turned off. Since the ON signal from the wire presence / absence detection limit switch 31 is input from the auxiliary arm 36, the winder 4 can be operated regardless of the presence / absence of the wire 2.

Therefore, it is possible to set the wire 2 for winding the wire 2 around the rotary sheave while operating the winder 4.

Table 2 shows the relationship between the position of the winder and the operable state of the winder as shown in Table 2. (a) shows the case where two limit switches are provided, and (b) ) Indicates the case where one limit switch is configured.

[0066]

[Table 2]

As described above, according to the wire retaining device 30 of the winder, the wire 2 can be automatically prevented from coming off only when the wire 2 comes out in the air, and on the ground or on the roof, You can insert the wire 2 and set it.

In each of the above embodiments, the mechanism for vertically moving the lifting body and the winder is described by using the elongated hole and the pin, but the present invention is not limited to this, and other structures may be used. May be.

[0069]

As described above in detail with the embodiment, according to the wire stopper device for a winder according to claim 1 of the present invention, the winder is attached to the wire so that it can be moved up and down on the lifting body. The vertical position of the winder is changed between the load and the ground, and this is detected by the ground air detection limit switch, and the guide roller, through which the wire is inserted below the winder, can be moved in the pressure direction. Since the presence / absence of the wire is detected by the wire presence / absence detection limit switch based on the movement of the guide roller, the winder can be stopped only when the control device has no wire in the air and the wire can be prevented from coming off. , On the ground, the winder can be operated freely without wires.

According to the wire stopper device for a winder according to claim 2 of the present invention, the ground air detection limit switch according to claim 1 is omitted, and the vertical movement of the winder is detected by the wire presence / absence detection limit switch by a link mechanism. Since it is transmitted and operated, the wire presence / absence detection limit switch is turned off only when there is no wire and it is in the air, which enables the control device to automatically and without any switching on the ground. , With the ability to operate the winder without wires, in the air,
When the absence of wire is detected, the winder can be stopped to prevent the wire from coming off.

Further, according to the wire retaining device for a winder according to a third aspect of the present invention, a swing arm is provided instead of the detection of the presence or absence of the wire by the movement of the guide roller that clamps the wire. Since the wire presence / absence detection limit switch is made to operate, this also allows the control device to automatically and without any switching, on the ground,
The winder can be operated even without the wire, and when the absence of the wire is detected in the air, the winder can be stopped to prevent the wire from coming off.

According to the wire retainer device for a winder according to a fourth aspect of the present invention, the auxiliary arm is attached to the swing arm according to the third aspect, and the auxiliary arm contacts the detection rod for detecting the vertical movement of the winder. Since it is contacted and oscillated, the wire presence / absence detection limit switch can be turned off only when there is no wire and it is in the air. This allows one limit switch and the control device to switch anything. It is possible to automatically operate the winder on the ground without a wire without the need for the wire. In the air, when the absence of the wire is detected, the winder can be stopped to prevent the wire from coming off.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an embodiment of a wire retaining device for a winder according to the present invention in a state in the air.

FIG. 2 is a cross-sectional view of a state on the ground according to an embodiment of a wire retaining device for a winder of the present invention.

FIG. 3 is an enlarged cross-sectional view of an embodiment of a wire retaining device for a winder according to the present invention.

FIG. 4 is an enlarged cross-sectional view of another embodiment of the wire retaining device of the winder according to the present invention.

FIG. 5 is a cross-sectional view of a wire retaining device of a winder according to another embodiment of the present invention in an in-air state.

FIG. 6 is a cross-sectional view of a state on the ground according to an embodiment of a wire retaining device for a winder of another invention.

FIG. 7 is an enlarged cross-sectional view of an embodiment of a wire retaining device for a winder of another invention.

FIG. 8 is an enlarged cross-sectional view of another embodiment of the wire retaining device of the winder of another invention.

FIG. 9 is an explanatory diagram showing an example of a usage state of a winder to which the present invention is applied.

[Explanation of symbols]

 1 Structure 2 Wire 3 Gondola 4 Winder 4a Projection 10 Winder wire retaining device 11 Winder stand 12 Long hole 13 Pin 14 Through hole 15 Sensor mount 16 Wire hole 17 Wire guide 17a Large diameter part 17b Cam 17c Stopper ring 18 Spring 19 Swing link 20 Arm 21 Cam roller 22 Spring 23 Horizontal link 24 Limit switch (for detecting wire presence) 25 Wire guide roller 26 Spring 27 Limit switch (for detecting air in the ground) 28 Control device 30 Winder wire retaining device 31 Wire Presence / absence detection limit switch 32 Arm 33 Roller 34 Through hole 35 Ground detection rod 36 Auxiliary arm 37 Roller 38 Ground air detection limit switch 39 Control device

Claims (4)

[Claims] 1. A wire retaining device provided in an elevating body that is elevated and lowered together with a winder along a wire wound around a rotary driven sheave of the winder, wherein the winder depends on a load applied to the wire. While supporting up and down so that it can move up and down between the ground and the air, a ground air detection limit switch that detects the ground and the air by moving the winder up and down is provided, facing below the winder of the wire wound around this winder. And a pair of wire guide rollers that can move in the wire clamping direction, and a wire presence / absence detection limit switch that detects the presence / absence of a wire by the movement of the wire guide rollers. And the presence / absence of wires in the air due to the on / off signal of the ground air detection limit switch. Winder wire retaining device, wherein only the provision of the control device for outputting a control signal for stopping the winder when. 2. The ground aerial detection limit switch is omitted, and the wire presence / absence detection limit switch is also used, while the wire presence / absence detection limit switch is operable above and below the winder via a link mechanism. The wire retaining device for a winder according to claim 1. 3. The winder according to claim 1, wherein a swing arm that swings depending on the presence or absence of a wire is provided in place of the wire guide roller, and the swing presence arm operates the wire presence / absence detection limit switch. Wire retention device. 4. The ground aerial detection limit switch is omitted and the wire presence / absence detection limit switch operated by the swing arm is also used, while an auxiliary arm is integrally provided on the swing arm to move the winder up and down. The wire retaining device for a winder according to claim 3, wherein the detecting rod for detecting is configured to be swingable.