JPH07257882A - 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. Under the winder 4 a metal sensor 17 is installed to sense existence of a wire 2. On the ground, the metal portion 19b of a wire guide 19 is positioned in the metal sensor part through utilization of the winder 4 falling onto the framing 11 by its deadweight, and in the air, the wire guide 19 is raised so that the non-metal portion 19c is put in place. Thereby the winder 4 can be operated freely on the ground automatically, and in the air, the winder 4 is stopped by a control device 18 when non-existence of wire 2 is sensed so that wire slipping-off is precluded.

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. 6, one end of the wire 2 is fixed and suspended at the upper end of the structure 1, and the winder (hoisting machine) 4 mounted in the gondola 3 is driven to drive 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 supports the winder so that the winder can be moved between the ground and the air depending on the presence or absence of a load applied to the wire, and the winder for the wire wound around the winder. A wire presence / absence detection sensor for detecting the presence / absence of a wire is provided facing downward, and a signal equivalent to the presence / absence of a wire is provided to the wire presence / absence detection sensor on the ground by the movement of the winder between the ground and the air. And a wire guide that can detect only the presence or absence of a wire in the air. 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.

According to a second aspect of the present invention, there is provided a wire pullout prevention device for a winder, wherein a wire pullout is provided on an elevating body that is moved up and down together with the winder along a wire wound around a sheave that is driven to rotate. A stopping device that supports the winder so that it can move between the ground and the air depending on the presence or absence of a load applied to the wire, and a limit switch that detects the ground and the air when the winder moves is attached to the lift. A wire presence / absence detection sensor for detecting the presence / absence of the wire is provided below the winder of the wire wound around the winder, and the presence of the wire in the air is detected by the detection signal of the wire presence / absence detection sensor and the ON / OFF signal of the limit switch. If there is no control device that outputs a control signal to stop the winder It is an butterfly.

Further, according to a third aspect of the present invention, there is provided a wire pullout preventing device for a winder, wherein the wire pullout is provided on an elevating body that is moved up and down together with the winder along a wire wound around a sheave that is driven to rotate. A stopping device, which attaches a ground air detection sensor for detecting the ground and the air of the lifting body depending on the presence or absence of a load applied to the wire of the winder to the lifting body, and below the winder of the wire wound around the winder. A wire presence / absence detection sensor for detecting the presence / absence of a wire is provided oppositely, and the winder is provided only when the lifting body is in the air and no wire is present due to the detection signal of the wire presence / absence detection sensor and the on / off signal of the ground air detection sensor. Is provided with a control device for outputting a control signal for stopping the operation.

According to a fourth aspect of the present invention, in addition to the structure of the first or second aspect, the wire retaining device for a winder has a vertically long slot having a structure for movably supporting the winder on an elevating body. And a pin mounted in the long hole.

Further, in addition to the structure of claim 1 or 2, the wire retaining device for a winder according to claim 5 of the present invention has a structure in which the winder is movably supported by an elevating body by a pin and a hole. It is characterized by being configured to move.

According to a sixth aspect of the present invention, in addition to the structure of the first or second or third aspect, the wire pullout prevention device for a winder is characterized in that the wire presence / absence detection sensor is a metal sensor. It is a thing.

According to a seventh aspect of the present invention, in addition to the structure of the third aspect, the wire retaining device for a winder further comprises a ground air detection sensor for detecting the ground and the air of the lifting body from the lifting body. It is characterized by comprising a rod projecting toward the ground and a limit switch operated by this rod.

[0015]

According to the wire retaining device for a winder according to claim 1 of the present invention, the winder is attached to the elevating body so that it can be moved vertically and oscillated. The winder's vertical or rotational position is changed, and a wire presence / absence detection sensor such as a metal sensor for detecting the presence / absence of a wire is installed below the winder to detect the presence / absence of the wire. The metal part of the wire guide is positioned at the wire presence / absence detection sensor part by using the downward movement, and the wire guide is moved up to position the non-metal part in the air. The winder can be operated automatically without wires on the ground without the need, and when there is no wire in the air, the controller can detect it. It becomes possible to prevent the omission of the wire stop inductor.

According to the wire retaining device of the winder of the second aspect of the present invention, the winder is attached to the elevating body so that it can be moved up and down and rocked, and the load is applied to the wire. By changing the vertical or rotational position, and by installing a wire presence detection sensor such as a metal sensor that detects the presence or absence of a wire below the winder to detect the presence or absence of the wire, the winder moves up and down by its own weight between the ground and the air. By moving the limit switch up and down by moving up and down or swinging on the body, it is possible to know the ground and the air by operating the limit switch.
The signal from this limit switch and the signal from the wire presence / absence detection sensor can be automatically operated by the control device without any need for switching, and the winder can be operated without wires on the ground. Once detected, the winder can be stopped.

Further, according to the wire retaining device for a winder according to a third aspect of the present invention, a ground air detection sensor for detecting the ground and the air is attached to the lifting body itself which moves up and down through the winder. A wire presence detection sensor such as a metal sensor that detects whether there is a wire or not is installed below the winder to detect the presence or absence of a wire.On the ground, the lifting body can be lowered to the ground or rooftop. I know this by using, and in the air, I am trying to know this by using the fact that the lifting body separates from the ground, rooftop, etc., even if it is a fixed winder, it does not need any switching automatically, On the ground, the winder can be operated without a wire. In the air, when the absence of the wire is detected, the winder can be stopped by the control device to prevent the wire from coming off. Uninaru.

Further, according to the wire stopper device of the winder of the fourth aspect of the present invention, the winder and the elevating body can be moved up and down by the vertically long slot and the pin mounted in the slot. Therefore, the winder can be lifted and lowered while being surely supported by the lifter, and the movement of the winder can be easily detected between the ground and the air.

Further, according to the wire retaining device of the winder of the fifth aspect of the present invention, the winder and the lifting body are swingably connected by the hole and the pin mounted in the hole, By swinging the winder while securely supporting it on the lifting body, it is possible to easily detect the ground and the air.

According to the wire retainer device for a winder according to claim 6 of the present invention, the wire presence / absence detection sensor is constituted by a metal sensor, so that the presence / absence of a wire can be easily detected. At the same time, even if the wire is contaminated, it can be detected without being affected by it.

Further, according to the wire retaining device of the winder of claim 7 of the present invention, a rod which projects a sensor for detecting the ground and the air by the elevation of the lifting body itself toward the ground and the movement of this rod. And a limit switch that operates in accordance with the present invention, and the winder can be installed in a fixed state to easily detect the ground and the air.

[0022]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 and 2 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 and FIG. 2 is a sectional view in the ground.

The wire retaining device 10 of this winder
For example, as shown in FIG. 6, the gondola 3 and the winder 4 are provided 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.

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. A guide hole 16 is formed so as to penetrate therethrough.

A guide hole 16 is formed in the sensor mount 15.
The metal sensor 17 is attached in the left-right direction so as to sandwich the portion where the wire 2 hangs down and detects whether or not the wire 2 is present in the guide hole 16 portion.

The metal sensor 17 causes the gondola 3 to descend and before the wire 2 comes out of the winder 4, the wire 2
It is possible to detect that there is no wire, and input this to the control device 18 to stop the winder 4 and also to stop the wire 2 by applying a brake, but the gondola 3 is placed on the ground or on the rooftop. Attempting to set the wire 2 on the winder 4 at times by the control device 18,
Cannot be operated and the wire 2 cannot be wound around the rotary sheave of the winder 4.

Therefore, the guide hole 16 of the sensor mount 15 is provided.
A cylindrical wire guide 19 that moves up and down is mounted inside, and a spring 20 is interposed between the large diameter portion 19a at the upper end and the upper surface of the sensor mounting base 15 to urge the wire guide 19 upward. A stopper ring 21 is attached to the lower end of the wire guide 19 so as to regulate the rising position.

The upper end surface of the large-diameter portion 19a of the wire guide 19 can enter the through hole 14 of the winder mount 11, and is in contact with the protruding portion 4a on the lower surface of the winder 4. The wire guide 19 moves up and down as the winder 4 moves up and down with respect to the gantry 11.

Therefore, the wire guide 19 is in a state where the wire guide 19 is pushed downward by the winder 4 when the gondola 3 and the winder 4 are placed on the ground or on the roof and there is no need to prevent the wire 2 from coming off. In this state, the portion detected by the metal sensor 17 is formed of the metal 19b, and the wire guide 19 is required to prevent the wire 2 from coming off because the gondola 3 and the winder 4 are located in the air. In this case, the wire guide 19 is raised by the rise of the winder 4, but in this state, the metal sensor 17
The portion detected by is formed in a cylindrical shape of non-metal 19c. Then, the non-metal portion 19c of the wire guide 19
The presence or absence of the wire 2 on the inside is detected by the metal sensor 17.

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, as the winder 4 rises, the wire guide 19 that is in contact with the protruding portion 4a is pushed up by the spring 20 and enters the through hole 14 of the winder mount 11.

When the wire guide 19 rises in this way,
The non-metal portion 19c of the wire guide 19 is located on the metal sensor 17 portion of the sensor mount 15.

In this state, the wire 2 moves into the wire guide 19
If present, the presence of metal, that is, the presence of the wire 2 is detected by the metal sensor 17, and the operation of the winder 4 can be continued via the control device 18.

On the other hand, when the wire 2 comes out of the winder 4 and the end of the wire 2 passes through the metal sensor 17 of the wire guide 19, the absence of metal, that is, the disconnection of the wire 2 is detected. Metal sensor 17
The detection signal is input to the control device 18, and the control device 18 outputs a stop signal to the winder 4 to prevent the wire 2 from coming off.

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 19 abutting against the protrusion 4a is pushed down against the spring 20. It becomes a state.

When the wire guide 19 descends in this way,
The metal portion 19b of the wire guide 19 is positioned on the metal sensor 17 portion of the sensor mount 15, and the metal sensor 17 detects the metal portion 19b of the wire guide 19 and detects whether or not the wire 2 is present. The detection state is the same as the presence of the winder 4 through the control device 18.
The operation of can be continued.

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.

[0044]

[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 on 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. 3 and 4.

Wire stopper device 30 of this winder
Has a different configuration for detecting whether the gondola 3 and the winder 4 are on the ground or in the air.

In the wire retaining device 30 of the winder, the lower end corner of the winder 4 is swingably attached to the winder mount 11 through the hole 12a and the pin 13 to a position slightly higher than the winder mount 11. To do. Then, a through hole 31 is formed in a portion of the lower end of the winder 4 of the winder base 11 where the other corner is placed, and a limit switch 32 that is turned on / off by the swing movement of the winder 4 is provided on the lower surface of the winder base 11. It is installed.

Therefore, in the limit switch 32, when the gondola 3 and the winder 4 are on the ground, they are pushed by the winder 4 to be turned on, while the gondola 3 is turned on.
And, when the winder 4 is in the air, the winder 4 is turned off by the counterclockwise swinging and rising, and these states can be detected.

With the provision of such a limit switch 32, only the metal sensor 17 is attached to the sensor mounting base 15 corresponding to the position where the wire 2 hangs down.

The ON / OFF signal of the limit switch 32 and the detection signal of the metal sensor 17 are input to the control device 18, the detection signal of the limit switch 32 is OFF, and the detection signal of the metal sensor 17 is metal. The stop signal is output from the control device 18 to the winder 4 only when it is determined that the winder 4 does not exist.

The operation of the wire retaining device 30 of the winder thus constructed and the operation of retaining the wire 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. 3, the gondola 3 and the winder 4 are suspended from the wire 2, and the hole 12 of the winder mount 11 is
The pin 13 of the winder 4 swings counterclockwise around a and the other end of the winder 4 is raised.

Then, the limit switch 3 located in the through hole 31 of the winder stand 11 as the winder 4 is raised.
2 becomes free and turns off.

In this state, if the wire 2 hangs down from the winder 4, the presence of metal, that is, the presence of the wire 2 is detected by the metal sensor 17, and the limit switch 32 OFF signal and the wire of the metal sensor 17 are detected. Two
The presence signal allows the winder 4 to continue operating through the controller 18.

On the other hand, when the wire 2 comes out of the winder 4 and the end of the wire 2 passes through the metal sensor 17, the state where there is no metal, that is, the drop of the wire 2 is detected. The detection signal for the absence of the wire and the signal for turning off the limit switch 32 are input to the control device 18, and the control device 18 outputs a stop signal to the winder 4 to prevent the wire 2 from being pulled out.

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. 4, the load is not applied to the gondola 3 and winder 4 via the wire 2. , The winder 4 swings around the pin 13 mounted in the hole 12a of the winder mount 11, and the other end of the winder 4 is attached to the winder mount 1
1 is placed in the descending state.

Then, when the winder 4 descends, the limit switch 3 located in the through hole 31 of the winder frame 11 is moved.
2 is pressed and turned on.

In the state in which the ON signal of the limit switch 32 is input to the control device 18, the control device 18 is operated through the control device 18 regardless of whether the metal sensor 17 detects the presence or absence of metal. The operation of the winder 4 can be continued.

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.

[0062]

[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 rooftop, 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 FIG.

The wire retaining device 40 of this winder
Has a different configuration for detecting whether the gondola 3 and the winder 4 are on the ground or in the air.

In the wire stopper device 40 of this winder, the winder 4 is fixedly attached to the winder stand 11. Then, a rod 41 is mounted so that it can move up and down from the gondola 3, which is an elevating body, toward the ground.
The gondola 3 is equipped with a limit switch 42 which is operated by the vertical movement of 1.

Therefore, in the limit switch 42, when the gondola 3 is on the ground, it is pushed by the rod 41 to be turned on, while when the gondola 3 is in the air, the rod 41 is lowered and turned off. Therefore, these states can be detected.

With the provision of such a limit switch 42, only the metal sensor 17 is attached to the sensor mounting base 15 corresponding to the position where the wire 2 hangs down.

The on / off signal of the limit switch 42 and the detection signal of the metal sensor 17 are input to the control device 18, the detection signal of the limit switch 42 is off, and the detection signal of the metal sensor 17 is metal. The stop signal is output from the control device 18 to the winder 4 only when it is determined that the winder 4 does not exist.

The operation of the wire retaining device 40 of the winder thus constructed and the prevention of the wire retaining will be described.

A. When it is necessary to prevent the wire from coming off in the air When the gondola 3 is in the air, the gondola 3 and the winder 4 are hung on the wire 2 as shown by the chain double-dashed line in Fig. 5 (b). Yes, the rod 41 attached to the gondola 3 is in a lowered state. Then, the limit switch 42 is turned off.

In this state, if the wire 2 hangs down from the winder 4, the presence of metal, that is, the presence of the wire 2 is detected by the metal sensor 17, and the limit switch 42 OFF signal and the wire of the metal sensor 17 are detected. Two
The presence signal allows the winder 4 to continue operating through the controller 18.

On the other hand, when the wire 2 comes out of the winder 4 and the end of the wire 2 passes through the metal sensor 17 part, the absence of metal, that is, the omission of the wire 2 is detected. The detection signal for the absence of the wire and the signal for turning off the limit switch 42 are input to the control device 18, and the stop signal is output from the control device 18 to the winder 4, whereby the wire 2 is prevented from coming off.

B. When it is necessary to set the wires on the ground or on the roof When the gondola 3 and the winder 4 are on the ground or on the roof, the gondola 3 and the winder 4 are connected via the wire 2 as shown by the solid line in FIG. The rod 41 is pushed up by placing the gondola 3 on the ground or the like with no load applied.

Then, the limit switch 4 is moved by the rod 41.
2 is pressed and turned on.

In the state where the ON signal of the limit switch 42 is input to the control device 18, the control device 18 is operated through the control device 18 regardless of whether the metal sensor 17 detects the presence or absence of metal. The operation of the winder 4 can be continued.

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

As described above, according to the wire retaining device 40 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.

Further, the winder 4 can be fixed to the gondola 3 as in the conventional case, and the application to the conventional apparatus is easy.

In each of the above embodiments, the wire presence / absence detecting sensor is a metal sensor. However, the present invention is not limited to this, and other sensors such as an optical sensor composed of a light emitting element and a light receiving element may be used. .

The mechanism for vertically moving the elevator and the winder is not limited to the mechanism using the long hole and the pin,
Other structures may be used.

[0082]

As described above in detail with reference to the embodiment, according to the wire stopper device for a winder according to claim 1 of the present invention, the winder is attached so as to be movable to the lifting body and the wire is loaded. The position of the winder is changed between the air and the ground, and a wire presence / absence detection sensor such as a metal sensor that detects the presence / absence of the wire is attached below the winder to detect the presence / absence of the wire. Since the metal part of the wire guide is located in the wire presence / absence detection sensor part by moving on the lifting body by its own weight, the wire guide rises to position the non-metal part in the air. , It is possible to operate the winder without wires on the ground automatically without any switching, and in the air, the condition without wires is detected. It is possible to prevent the omission of the wire stop winder in that the control device.

According to the wire retaining device for a winder according to the second aspect of the present invention, the winder is attached to the elevating body so that the winder can be moved and the wire is vertically loaded. Install a wire presence detection sensor such as a metal sensor that detects the presence or absence of a wire below the winder to detect the presence or absence of the wire, and the winder can move above the lifting body by its own weight between the ground and the air. Since the limit switch is operated by using the so that the ground and the air can be known, the control device automatically changes the signal of this limit switch and the signal of the wire presence detection sensor without any need for switching. In addition, it is possible to operate the winder without wires on the ground, and when there is no wire in the air, the winder can be operated. It can be stopped.

Further, according to the wire retaining device for a winder according to claim 3 of the present invention, a ground air detection sensor for detecting the ground and the air is attached to the lifting body itself which moves up and down through the winder. A wire presence detection sensor such as a metal sensor that detects whether there is a wire or not is installed below the winder to detect the presence or absence of a wire.On the ground, the lifting body can be lowered to the ground or rooftop. Since it was used in the air, the lifting body separates from the ground or the rooftop, so even if the winder is in a fixed state, it will automatically change without any change, and on the ground even if there is no wire. When it is detected that there is no wire in the air, the control device can stop the winder 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, in addition to the configuration according to the first or second aspect, a structure for supporting the winder on an elevating body so as to be vertically movable is vertically arranged. Since the winder is configured by the long slot and the pin mounted in the slot, the winder can be lifted and lowered while being surely supported by the lifting body, and its movement can be easily utilized.

Further, according to the wire retaining device of the winder of the fifth aspect of the present invention, in addition to the structure of the first or second aspect, a structure for swingably supporting the winder on the elevating body is provided with a hole. Since it is configured with the pin mounted in the hole, the winder can be lifted and lowered while being surely supported by the lifting body, and its movement can be easily utilized.

In addition, in the wire retaining device for a winder according to claim 6 of the present invention, in addition to the configuration according to claim 1, 2 or 3, the wire presence / absence detection sensor is composed of a metal sensor. The presence / absence of the wire can be easily detected, and the presence / absence of the wire can be reliably detected without being affected by the contamination of the wire.

Further, according to the wire retaining device for a winder according to a seventh aspect of the present invention, in addition to the configuration according to the third aspect, a rod for detecting the ground and the air of the lifting body toward the ground, Since the limit switch is operated by the movement of the rod, it is possible to reliably detect the ground and the air while the winder is fixed to the lifting body.

[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 a cross-sectional view of an embodiment of a wire retaining device of a winder of another invention in a state in the air.

FIG. 4 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.

5A and 5B are a side view and an enlarged view of an embodiment of a wire retaining device for a winder of still another invention.

FIG. 6 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 mount 12 Long hole 13 Pin 14 Through hole 15 Sensor mount 16 Guide hole 17 Metal sensor 18 Control device 19 Wire guide 19a Large diameter part 19b Metal part 19c Non-metal part 20 Spring 21 Stopper ring 30 Winder wire retaining device 31 Through hole 32 Limit switch 40 Winder wire retaining device 41 Rod 42 Limit switch

Front page continuation (72) Inventor San-ichi Moriyama 1-1-1, Minami-Aoyama, Minato-ku, Tokyo Inside Nippon Biso Co., Ltd.

Claims (7)

[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. The winder is supported so that it can move between the ground and the air, and a wire presence / absence detection sensor that detects the presence or absence of the wire is provided facing the winder of the wire wound around the winder. The wire presence / absence detection sensor is provided with a wire guide capable of outputting a signal equivalent to the presence / absence of the wire to the wire presence / absence detection sensor on the ground regardless of the presence / absence of the wire and detecting only the presence / absence of the wire in the air. A control device that outputs a control signal to stop the winder only when there is no wire in the air by the detection signal of Winder wire retaining device, characterized in that the. 2. 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 the lifting body so that it can move between the ground and the air, a limit switch that detects the ground and the air by the movement of this winder is attached to the lifting body, and it faces the lower part of the winder of the wire wound around this winder. A wire presence / absence detection sensor for detecting the presence / absence of a wire is provided, and a control signal for stopping the winder is output only when there is no wire in the air by the detection signal of the wire presence / absence detection sensor and the ON / OFF signal of the limit switch. A wire retaining device for a winder, which is provided with a device. 3. 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 a winder, depending on the presence or absence of a load applied to the wire of the winder. A ground air detection sensor for detecting the ground and the air of the lifting body is attached to the lifting body, and a wire presence / absence detection sensor for detecting the presence or absence of the wire is provided facing the lower side of the winder of the wire wound around the winder. A control device for outputting a control signal for stopping the winder only when the lifting body is in the air and no wire is present is provided by the detection signal of the wire presence / absence detection sensor and the on / off signal of the ground air detection sensor. Wire stopper device for winders. 4. A wire for a winder according to claim 1, wherein the structure for movably supporting the winder on the elevating / lowering body comprises a vertically long elongated hole and a pin mounted in the elongated hole. Lockout device. 5. A wire retaining device for a winder according to claim 1 or 2, wherein a structure for movably supporting the winder on an elevating body is configured to swing by a pin and a hole. 6. The winder wire retaining device according to claim 1, 2 or 3, wherein the wire presence / absence detection sensor is a metal sensor. 7. The ground aerial detection sensor for detecting the ground and the air of the lifting body is composed of a rod protruding from the lifting body toward the ground, and a limit switch operated by this rod. The wire retaining device for a winder according to claim 3.