JP5278806B2 - Line device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire pulling device that autonomously executes the avoidance behavior when abutting against an obstacle or the like even without operation from the worker side, and also, avoids the occurrence of an accident due to breakage or deterioration of a linear body without the need for power supply via an electric wire inside the linear body. <P>SOLUTION: An autonomous vibration unit 3 is provided at the tip of a wire pulling linear body 2 pushed into the inside of a conduit. The autonomous vibration unit has a pressing operation member 5 pushed in the axial direction of the linear body 2, a push-button switch 6 forming a conductive state by the pushing of the pressing operation member 5, a vibration generator 8 for generating vibration, and a power supply 10 that consists a closed circuit together with the push-button switch 6 and the vibration generator 8 and supplies power to the vibration generator 8 by the operation of the push-button switch 6. The autonomous vibration unit 3 may be removably mounted to the linear body 2 or integrated with the linear body 2. The autonomous vibration unit may also be added with a configuration for controlling the vibration generator 8 by an optical signal via an optical fiber incorporated into the linear body. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a wiring device that is used by being pushed into a pipeline when installing a cable or the like in an existing pipeline, and more specifically, the tip of a linear body is used as an obstacle in the pipeline. The present invention relates to a communication device provided with a mechanism that vibrates autonomously when contacted.

  Conventionally, as a wiring device used for passing a cable or the like in an existing pipe line, a movable part having a plurality of projecting members provided at the tip of a cable or the like and projecting from an outer peripheral surface, and the movable part is rotated. Alternatively, by providing a movable means that vibrates, it is possible to change the insertion path so as to avoid the obstacle point (see Patent Document 1), or a linear body that is pushed into the pipe A derivative is provided at the tip of this, and a vibration device is provided on this derivative to vibrate (see Patent Document 2).

Japanese Patent Laid-Open No. 07-143634 JP 2004-187337 A

  However, in the former wiring device, when the movable part is rotated, it is necessary to drive the motor to generate a strong torsional force, so that a large torsional force also acts on the linear body of the liner. Therefore, when electric power supply wires or the like are provided inside the linear body, there is a disadvantage that they are twisted and broken.

  In addition, when the movable part is vibrated in the former wiring device or when the vibration device is driven in the latter wiring device, electric power is supplied via a power supply wire passing through the linear body. Because of the supply, there is a concern that an accident caused by a short circuit or leakage due to breakage or deterioration of the linear body may be induced.

  In addition, the state where the tip of the wireliner is obstructed by obstacles in the pipeline is difficult to grasp from the operator side, and feels difficult to push in by pushing or pulling the linear body. In many cases, it can be recognized for the first time, and after the recognition, the work to supply power to the motor and the vibration device from the worker side is performed. In some cases, it takes time to work on the line.

  The present invention has been made in view of such circumstances, and can perform an avoidance action autonomously when hitting an obstacle or the like without any operation from the worker side, It is a main object to provide a wiring device capable of avoiding inducing accidents associated with breakage or deterioration of a linear body by making it unnecessary to supply electric power via the electric wire.

  In order to achieve the above-described object, a wire-line device according to the present invention includes a wire-like linear body that is pushed into a pipeline, and a pressing operation member that can be pushed in the axial direction of the linear body, A switch that is pressed by the pressing operation member to form a conductive state, a vibration generator that generates vibration, and a closed circuit together with the switch and the vibration generator, and the vibration generator that is connected by the conduction of the switch An autonomous vibration unit having a power source for supplying electric power to the linear body is provided at the tip of the linear body.

  Therefore, even when the linear body is pushed into the pipe and the front end of the linear body hits an obstacle or the like and is prevented from progressing, the pressing operation member of the autonomous vibration unit provided at the front end of the linear body Is pushed by an obstacle or the like and presses the switch, so that power from the power source is supplied to the vibration generator, and the vibration generator operates to vibrate the tip of the linear body (autonomous vibration unit). Become. Therefore, prior to the passive operation by the worker, an autonomous operation is performed to avoid contact with the obstacle, etc., so that the worker moves to avoid the obstacle, or rejects the obstacle. It becomes possible.

  Also, since the autonomous vibration unit vibrates autonomously when it hits an obstacle, it is possible to identify the position of the tip of the linear body by checking the location where the vibration sound is generated. It is also possible to grasp which part is caught.

  Furthermore, since the autonomous vibration unit vibrates autonomously at the tip of the linear body, there is no need to pass an electric power supply wire through the linear body, and there is no need to drive the autonomous vibration unit from the operator side. At the same time, there are no inconveniences such as a short circuit and a leakage accident caused by the presence of the electric wire.

  Such an autonomous vibration unit provided at the front end of the linear body may be detachably attached to the front end of the linear body, and may be used by being attached to the linear body of an existing line device. Good.

  Further, the autonomous vibration unit may further include a time-limit mechanism that cuts off the power supply from the power source after a predetermined time has elapsed since the switch was closed. With the addition of such a configuration, even when the pressing operation member continues to be pressed and the switch continues to close, the vibration is stopped when a predetermined time has elapsed, so that the energization of the vibration generator is continued and wasted power. Can be avoided.

  Further, an optical fiber is provided inside the linear body from an end portion on the operator side to the distal end portion, and the autonomous vibration unit is integrally provided at the distal end portion of the linear body. A switching element or a switching circuit that forms a conductive state by receiving an optical signal input from the end on the side through the optical fiber and forms a closed circuit together with the vibration generator and the power source. May be.

  In such a configuration, active vibration by the autonomous vibration unit provided at the tip of the linear body and passive vibration by an optical signal sent from the worker side via the optical fiber are possible. In normal times, it is left to the autonomous vibration by the operation of the switch, and it is possible to intentionally generate vibration from the operator when necessary. For this reason, it is possible to perform the line work more accurately and in a short time.

  In addition, since the power from the power supply unit is received by receiving the optical signal transmitted through the optical fiber instead of the electric wire for supplying electric power, there is no inconvenience such as a short circuit and a leakage accident caused by the presence of the electric wire. .

  In the above configuration, in order to make the operator confirm that the vibration operation is being performed by the vibration generator, output light is output to the worker side via the optical fiber when the vibration generator is energized. And you may make it light-emit the indicator provided in the operator side.

  As described above, according to the present invention, the switch of the autonomous vibration unit including the closed circuit including the switch, the vibration generator, and the power source that is pressed by the pressing operation member to form a conduction state is provided. Since it is provided at the tip of the linear body, even when the linear body pushed into the pipeline hits an obstacle and the progress is blocked, the switch is activated by the pressing of the pressing operation member, and the vibration generator is Because it operates, autonomous operation to avoid contact with obstacles etc. is performed prior to passive operation from the worker side, and it is possible to perform the line work accurately and in a short time It becomes possible.

  In addition, since the autonomous vibration unit autonomously vibrates when it hits an obstacle, it is possible to identify the position of the tip of the linear body by checking the location where the vibration sound is generated. It becomes easy to grasp which part is caught.

  Furthermore, since the autonomous vibration unit can autonomously vibrate, it is not necessary to pass an electric power supply wire through the linear body, driving operation from the operator side becomes unnecessary, and the linear body There are no inconveniences such as a short circuit or leakage due to damage or deterioration of the battery.

  In particular, if the autonomous vibration unit can be detachably attached to the tip of the linear body, it can also be used by attaching it to the linear body of an existing wire-passage device, so that it has versatility. In addition, when the autonomous vibration unit fails, it is possible to cope by replacing only that part.

  Further, if the autonomous vibration unit is provided with a timing mechanism that cuts off the supply of power from the power source after a lapse of a predetermined time since the switch is turned on, the pressing operation member can be kept in a predetermined time even if the pressing state continues. Since the vibration generator can be vibrated only by this, it is possible to avoid the inconvenience that the vibration is continued and power is consumed wastefully.

  Furthermore, an autonomous vibration unit is provided integrally at the tip of the linear body, receives an optical signal input via an optical fiber provided inside the linear body, forms a conductive state, and generates a vibration generator and By further providing a switching element or switching circuit that forms a closed circuit together with the power supply, autonomous vibration by the autonomous vibration unit provided at the tip of the linear body and light transmitted from the operator side via the optical fiber Since it is possible to generate vibration due to passive operation by signals, it is possible to perform the line work more accurately and in a short time.

  Furthermore, when the vibration generator is energized, if the output light is output to the worker side through the optical fiber and the indicator provided on the worker side is made to emit light, the worker can vibrate by the vibration generator. It is possible to confirm that the operation is being performed.

FIG. 1 is a diagram showing a configuration example of a wiring device according to the present invention, (a) is a schematic configuration diagram showing a linear body to which an autonomous vibration unit is detachably attached, and (b) is an autonomous vibration. It is sectional drawing of a part notch which shows the specific structural example of a unit. FIG. 2 is a circuit diagram showing a circuit configuration of the autonomous vibration unit shown in FIG. FIG. 3 is a time chart showing an example of operation states of the time timer, the contacts, and the motor after the pushbutton switch is turned on. FIG. 4 is a diagram showing another configuration example of the wiring device according to the present invention, (a) is a schematic configuration diagram showing a linear body integrally mounted with an autonomous vibration unit, (b) It is sectional drawing of a part notch which shows the specific structural example of the front-end | tip part of the linear body containing an autonomous vibration unit. FIG. 5 is a circuit diagram showing a circuit configuration of the wiring device shown in FIG.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, the best embodiment of the invention will be described with reference to the accompanying drawings.

  In FIG. 1, a wiring device 1 according to the present invention is shown. This wiring device 1 is a highly rigid FRP (Fiber Reinforced Hyperlink "http://d.hatena.ne.jp/keyword/Plastics" Plastics) wound around a winding drum (not shown). An existing linear body 2 and an autonomous vibration unit 3 that can be detachably attached to a distal end portion inserted into a pipe line of the linear body 2 by screwing or the like are configured.

  The autonomous vibration unit 3 has a cylindrical unit case 4 formed using a hard material such as FRP so as to have substantially the same diameter as the linear body 2 or a somewhat larger diameter. The switch mechanism accommodating portion 7 provided with the member 5 and the push button switch 6, the vibration generating portion 9 accommodating the vibration generator 8, and the power supply accommodating portion 11 accommodating the power source 10 are provided. . In this example, the switch mechanism accommodating portion 7 is provided at the tip of the unit case 4, and the vibration generating portion 9 is integrally provided adjacent to the switch mechanism accommodating portion 7. Moreover, the vibration generating part 9 and the power supply accommodating part 11 are connected via the bellows part 12 which formed a part of unit case 4 in the bellows shape.

  The switch mechanism housing portion 7 is divided into a spring housing chamber 15 in which the spring 14 is compressed and housed by the partition wall 13 and a switch element housing chamber 16 in which the push button switch 6 is housed. Through holes 17 and 18 are formed at positions aligned in the axial direction of the unit case 4 in the front end face of the switch and the partition wall 13, and a portion facing the through hole 18 of the switch element housing chamber 16 (in this example, the switch A push button switch 6 is fixed to a wall portion 19 that separates the mechanism housing portion 7 and the vibration generating portion 9 and is aligned with the through hole 18 in the axial direction of the unit case 4.

  The pressing operation member 5 includes a rod 5a having a diameter substantially equal to or somewhat smaller than the diameter of the through holes 17 and 18, and a diameter of the rod 5a and the through hole 17 formed integrally with the tip of the rod 5a. The rod 5a is inserted into the spring accommodating chamber 15 and the switch element accommodating chamber 16 through the through hole 17 from the front end side of the unit case 4, A spring 14 is elastically mounted between the stopper 20 formed in the middle of the rod 5a and the partition wall 13 so that the stopper 20 is normally in contact with the inner surface of the end face of the unit case 4 by the spring 14. It is energized.

In this example, the position of the stopper 20 is adjusted so that the free end of the rod 5a protrudes into the switch element accommodating chamber 16 even when the stopper 20 is in contact with the inner surface of the tip end surface of the unit case 4. When the stopper 20 is in contact with the inner surface of the end face of the unit case 4, the distance between the enlarged diameter protruding head 5 b and the end face of the unit case 4 is greater than the distance between the free end of the rod 5 a and the push button switch 6. The length of the rod 5a is adjusted so as to be longer.
Therefore, when the enlarged-diameter head 5b of the pressing operation member 5 hits an obstacle and is pushed against the spring force, the tip of the rod 5a is pressed against the push button switch 6, and the push button switch 6 is activated. Thus, a conductive state is formed. Further, when the diameter-expanding head 5b is separated from the obstacle or the like, the rod 5a is separated from the push button switch 6 by the restoring force of the spring 14, and the stopper 20 is returned to the state in contact with the inner surface of the end face of the unit case 4. .

  The vibration generator 8 accommodated in the vibration generating unit 9 is constituted by, for example, a motor 23 in which a weight 21 is eccentrically attached to an output shaft 22, and the power source 10 accommodated in the power source accommodating unit 11 is detachable. The battery 24 is housed in a possible manner. A male screw 25 extending in the axial direction of the unit case 4 is provided on the end surface of the power supply accommodating portion 11, and this male screw 25 is screwed to a female screw (not shown) provided at the insertion-side tip of the linear body 2. By doing so, the autonomous vibration unit 3 can be attached to and detached from the linear body 2.

  The push button switch 6, the motor 23, and the battery 24 that are pressed by the pressing operation member 5 described above are connected in the unit case 4 to form an electrical closed circuit as shown in FIG. When electric power is supplied from the battery 24 to the motor 23 by forming the conduction state of the push button switch 6, the motor 23 rotates to generate vibration.

  In the closed circuit, for example, a time timer 26 and a contact 27 linked to the time timer 26 are connected in series between the battery 24 and the push button switch 6, and the conduction state of the push button switch 6 is formed by the time timer 26. After a predetermined time (for example, 3 minutes) has elapsed after the push button switch 6 has been turned on, the contact 27 is opened to shut off the closed circuit and turn off. After a lapse of a predetermined time (for example, 1 minute), the contact 27 is closed to restore the closed circuit conduction state.

  Therefore, as shown in FIG. 3, when the pressing operation member 5 is pressed from time t0 and the conduction state of the push button switch 6 is formed, energization to the motor 23 is started and vibration is started. At the same time, the time timer 26 starts from the time (t0) when the energization of the motor 23 is started. If the pushbutton switch 6 is released before the predetermined time (3 minutes after t1: t0) has elapsed since the time timer 26 is activated, the conduction state of the pushbutton switch 6 is released. Although the motor 23 stops, even when the push button switch 6 is not released, the contact point 27 is opened when a predetermined time (3 minutes after t1: t0) has elapsed, and the drive of the motor 23 stops. The vibration stops. Thereafter, when a predetermined time (t2: one minute after t1) has passed, the contact 27 is returned and closed again, and if the pressing state of the pushbutton switch 6 is canceled at that point, the motor 23 is stopped. However, if the push button switch 6 continues to be pressed, the motor 23 is driven again from that point and vibration is generated, and the timing of the timed timer 26 is started and the above-described operation is performed. Is repeated.

  In the above configuration, when the work using the above-described wire passing device is performed, the autonomous vibration unit 3 is screwed and attached to the tip 2 of the existing linear body 2, and the linear body 2 is autonomously vibrated. The unit 3 is pushed into the pipe from the tip to which the unit 3 is attached. In the process, when the tip of the linear body 2 hits an obstacle or the like and the pushing of the linear body 2 is prevented, the enlarged diameter protruding head 5b is pressed against the obstacle or the like, so that the pressing operation member 5 Is pushed and the push button switch 6 is pushed, so that a conduction state of the push button switch 6 is formed, electric power is supplied from the battery 24 to the motor 23, and the motor 23 rotates and is attached to the output shaft 22. The weight 21 rotates and the tip end portion (autonomous vibration unit 3) of the linear body 2 vibrates. For this reason, it becomes possible to avoid the contact state between the linear body 2 and the obstacle by this vibration, and the autonomous vibration unit 3 can be moved to avoid the obstacle or the obstacle can be withdrawn. It becomes possible.

  Therefore, prior to the passive operation of pushing and pulling the linear body by the operator, it is possible to avoid a state where the linear body 2 is in contact with an obstacle or the like due to autonomous vibration of the linear body 2, and vibration noise is generated. The position of the tip of the linear body 2 can be confirmed, and it is possible to grasp at which part in the pipe the linear body 2 is caught.

  Moreover, since the autonomous vibration unit 3 provided at the tip of the linear body 2 can autonomously vibrate, it is necessary to pass an electric power supply wire for driving the motor 23 into the linear body 2. Therefore, it is possible to eliminate the occurrence of a short circuit or a leakage accident due to the presence of the electric wire inside the linear body 2.

  Further, since the autonomous vibration unit 3 is provided with a time-limiting mechanism that cuts off the power supply from the battery 24 to the motor 23 after a predetermined time has elapsed since the push button switch 6 was closed, the push button switch 6 is kept pressed. Even when the conduction state continues to be formed, it is possible to avoid the inconvenience that the motor is continuously energized and the power is consumed wastefully.

  Furthermore, in the above-described configuration, since the autonomous vibration unit 3 is detachably attached to the linear body 2, even when the autonomous vibration unit 3 breaks down, only this portion can be replaced. Therefore, it is not necessary to newly prepare the linear body 2 to which the autonomous vibration unit 3 is attached, and it is possible to provide versatility.

  In the above configuration, the example in which the autonomous vibration unit 3 is provided separately from the linear body 2 and is detachable is shown. However, the autonomous vibration unit 3 may be provided integrally with the linear body 2.

  As a structure which forms the autonomous vibration unit 3 integrally with the linear body 2, the structure as shown in FIG. 4 is possible, for example. Explaining this example, the autonomous vibration unit 3 includes an optical coupler, between the power supply accommodation unit 11 and the linear body 2, in addition to the configuration from the switch mechanism accommodation unit 7 to the power supply accommodation unit 11 shown in FIG. A control unit 30 in which control elements such as a light receiving element and an optical switch are accommodated is interposed.

  The linear body 2 is formed of a hard material such as FRP (Fiber Reinforced Hyperlink "http://d.hatena.ne.jp/keyword/Plastics" Plastics) using carbon fiber or glass fiber, for example. In addition, an optical fiber 31 for transmission that transmits an optical signal projected from the worker side to the distal end portion, and an optical fiber 32 for reception that transmits output light, which will be described later, output from the control unit 30 to the worker side. Configured through.

  These optical fibers 31 and 32 are installed from the end on the worker side to the tip of the linear body 2, and as shown in FIG. 5, an output light source 33 such as an LED or an LD at the end on the worker side. Is arranged opposite to the light incident end of the transmission optical fiber 31, and a light emitting display 34 composed of a light emitting body or the like coated with a fluorescent material that receives light and emits light is emitted from the optical fiber 32 for reception. Opposed to the end. Such an output light source 33 and the light emitting display 34 may be provided integrally with the linear body 2 or may be attached / detached or opposed to each other as a separate device.

  The control unit 30 provided at the tip of the linear body 2 receives the optical coupler 35 connected to the light output end of the transmission optical fiber 31 and one optical signal branched by the optical coupler 35. The light receiving element 36 such as PIN-PD that forms a conductive state and the other optical signal branched by the optical coupler 35 when the voltage value input from the outside is a predetermined voltage or more is output to the receiving optical fiber 32. An optical switch 37 that outputs light and a resistor 38 that is connected in parallel to the motor 23 and generates a voltage that is input to the optical switch 37 when the motor 23 is energized are accommodated. The light receiving element 36 is connected to the battery 24 and the motor 23 in parallel with a series circuit including the push button switch 6, the contact 27, and the time timer 26.

  Therefore, in this example, the battery 24 and the motor 23 are shared in addition to the above-described closed circuit (first closed circuit) constituted by the battery 24, the motor 23, the push button switch 6, the contact 27, and the timed timer 26. Thus, a closed circuit (second closed circuit) composed of the battery 24, the motor 23, and the light receiving element 36 is formed. When the light receiving element 36 receives an optical signal from the optical coupler 35, energization to the motor 23 starts. Thus, the motor 23 is driven and the voltage applied to the resistor 38 is input to the optical switch 37.

  In the above configuration, when the output light source 33 emits light at a desired timing from the worker side, the light enters the optical coupler 35 from the tip of the linear body 2 via the transmission optical fiber 31, where The light is branched into two, one light is irradiated to the light receiving element 36, and the other light is input to the optical switch 37 as carrier light. For this reason, the second closed circuit is turned on by the switching function of the light receiving element 36, and the motor 23 is driven to generate vibration. At the same time, since the voltage applied to the resistor 38 is input to the optical switch 37, the other light branched by the optical coupler 35 enters the receiving optical fiber 32 as output light and passes through the optical fiber 32. Then, it is guided to the light emitting display 34 to emit light.

  Therefore, if the operator wants to vibrate the tip of the wireliner intentionally, the light source 33 will vibrate if it emits light, and the fact that it vibrates (the motor 23 is energized). This can be confirmed by the fact that the light emitting display 34 at hand is emitting light. Further, in addition to the drive control of the motor 23 by pressing the pushbutton switch 6 described above, the tip of the linear body 2 can be vibrated at any time from the operator side. By oscillating mechanically, obstacles can be avoided more effectively, the position of the tip of the linear body 2 can be easily confirmed, and the wire connection work can be performed accurately and in a short time. Become.

  Further, instead of driving the motor at the tip portion by energization from the operator side through the electric wire through the wire to the linear body 2 as in the prior art, an optical fiber is built in the linear body 2 and the vibration generator 8 Since vibration control is performed, there is no possibility of short circuit or leakage due to breakage or deterioration of the linear body 2.

  Further, in the above-described configuration, the vibration control by the operation of the output light source 33 by the operator has a circuit configuration that is realized regardless of the presence or absence of vibration by the operation of the push button switch 6, so that the operator's operation can be performed. It is performed preferentially, and it is possible to obtain the movement intended by the worker (there is no inconvenience that the worker does not vibrate when he / she wants to vibrate).

In addition, when generating the vibration by the operation from the operator side, the first closed circuit may be cut off so that the active vibration by the autonomous vibration unit 3 is not generated. Further, in the above-described configuration, the tip side portion of the power supply accommodating portion 11 may have a sarcan structure so that the linear body 2 is not twisted with the twist of the tip portion.
Further, in the above-described structure, an example in which a PIN-PD is used as a switching element in the control unit 30 is shown. However, a single traveling carrier photodiode (UTC-PD) or the like that can convert an optical signal into a high-output electric signal, etc. Alternatively, a switching circuit composed of a plurality of elements may be substituted.

DESCRIPTION OF SYMBOLS 1 Line apparatus 2 Linear body 3 Autonomous vibration unit 5 Press operation member 6 Pushbutton switch 8 Vibration generator 23 Motor 24 Battery 31, 32 Optical fiber 33 Output light source 34 Light emission display 36 Light receiving element

Claims (5)

A wiring device having a linear body for wiring to be pushed into a pipeline,
A pressing operation member that can be pressed in the axial direction of the linear body, a switch that is pressed by the pressing operation member to form a conductive state, a vibration generator that generates vibration, the switch, and the vibration A wiring device comprising an autonomous vibration unit that forms a closed circuit together with a generator and has a power source that supplies electric power to the vibration generator by conduction of the switch, at a distal end portion of the linear body. The wiring device according to claim 1, wherein the autonomous vibration unit is detachably attached to a distal end portion of the linear body. 3. The wiring device according to claim 1, wherein the autonomous vibration unit includes a timing mechanism that cuts off power supply from the power source after a predetermined time has elapsed since the switch was closed. Inside the linear body, an optical fiber is provided from an end portion on the operator side to the distal end portion, and the autonomous vibration unit is integrally provided on the distal end portion of the linear body. It further comprises a switching element or a switching circuit that receives an optical signal input from the end through the optical fiber to form a conductive state and constitutes a closed circuit together with the vibration generator and the power source. The wiring device according to claim 1. 5. The wiring device according to claim 4, wherein when the vibration generator is energized, output light is output through the optical fiber, and a display provided on an operator side is caused to emit light.

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