JP2005318696A - Protective sheet body, separation holder, protector and protection method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protector which can be fixed to and removed from an object to be protected easily and can secure the safety of work, and to provide a protection method. <P>SOLUTION: A protection sheet body 22 and an object to be protected are supported while keeping a predetermined distance by fixing a separation holder 23 to the protection object 21. Consequently, the protection sheet body and the object to be protected can be prevented from coming into contact. When a wire member 40 is tightened to the sheet body 39, the fringe-side part of the sheet body is bound and the object to be protected is wrapped up in the sheet body. Consequently, a worker can wrap up the object to be protected 21 in the sheet body by the simple work of pulling the wire member. The work of tightening the wire member to the sheet body can be performed at a position separated from the object to be protected. Consequently, the worker can be protected from touching a wire to receive an electric shock. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a protection device and a protection method for covering and protecting a protection object including a wire support structure for supporting a wire and a wire portion in the vicinity of the wire support structure.

  The first conventional protection device includes a support arm, a net support, and a protection net, and fixes one end of the support arm to a support that supports a utility pole or a transformer attached to the utility pole. A net support that supports the protective net is fixed to the other end of the support arm. The protection net is attached to the net support by bolts or the like, and covers the utility pole and the nearby transformer from the outside (see, for example, Patent Document 1).

  FIG. 35 is a perspective view schematically showing a state in which the protection device 1 according to the second prior art is attached to the utility pole 2 or the like. FIG. 36 is a perspective view showing a simplified state before the protective device 1 is attached to the utility pole 2 or the like. The protective device 1 is configured by winding the insulator 4 or the like from the outside by the construction sheet 3 from the outside and engaging the construction sheet 3 with an adhesive tape or the like.

  FIG. 37 is a perspective view schematically showing a state in which the protection device 5 of the third prior art is attached to the utility pole 2 or the like. The protective device 5 is configured by using a net-like protective sheet 6, covering the utility pole 2 and the insulator 4 from the outside with the protective sheet 6, and locking the protective sheet 6 to the utility pole 2 using a rope. Has been.

Japanese Utility Model Publication No. 4-53143

  In the first conventional technique, an operator first needs to attach a support arm and a net support to a utility pole or the like, resulting in poor work efficiency.

  In the first, second, and third conventional techniques, an operator who installs the protective device needs to perform an operation of directly attaching the protective device in the vicinity of an electric wire or the like. Therefore, when the electric wire is a live wire, there is a risk that an operator may come into contact with the electric wire or the like to get an electric shock.

  Accordingly, an object of the present invention is to provide a protective sheet body, a separation holder, a protective device, and a protective method that can be easily attached and can ensure work safety.

The present invention is a protective device for protecting a protection object including a wire support structure for supporting a wire and a wire portion in the vicinity thereof,
A protective sheet covering the object to be protected;
The protective device includes a protective sheet body and a separation holder that supports the protective object while maintaining the protective object at a predetermined distance or more.

  According to the present invention, the protection sheet body and the protection target object are supported by the separation holder while maintaining a predetermined distance or more, so that the protection sheet body and the protection target object can be prevented from contacting each other. Thus, when the protection object is heated and energized, the protection sheet body can be prevented from being damaged by contacting the protection object. Further, since the protection target object is covered with the protection sheet body, it is possible to reliably prevent the worker from coming into contact with the protection target object that is generating heat and being energized.

The present invention also attaches a separation holder to the object to be protected,
Cover the object to be protected with the separation holder together with the separation holder from the outside, provide the protection sheet body in contact with the separation holder, narrow down the protection sheet body, The protection method is characterized in that the protection object is prevented from falling off from the protection object in a state where the protection object is maintained at a predetermined distance or more.

  According to the present invention, the protection object to which the separation holder is attached is covered from the outside together with the separation holder, and the protection sheet body is provided in a state of being in contact with the separation holder. The protective sheet body is narrowed down so that the protective sheet body and the object to be protected are kept at a predetermined distance or more to prevent the protective sheet body from falling off. Therefore, the protective sheet body can be maintained in a state where the predetermined distance from the protection target object is reliably maintained by the separation holder. Thereby, it can prevent that a protection sheet | seat body and a protection target object contact. Therefore, when the object to be protected is heated and energized, the protection sheet can be prevented from being damaged by coming into contact with the object to be protected. Moreover, since the protection target object equipped with the separation holder is covered with the protection sheet body from the outside together with the separation holder, the protection object can be covered with the protection sheet body. Therefore, it is possible to reliably prevent the worker from coming into contact with the object to be protected that generates heat and is energized.

Furthermore, the present invention is a protective sheet body that covers and protects an object to be protected including an electric wire support structure for supporting an electric wire and an electric wire portion in the vicinity thereof,
The seat body,
The protective sheet body includes narrowing means for narrowing the sheet main body to prevent falling off from the protective target object while covering the protective target object.

  According to the present invention, the narrowing means is used to prevent the sheet body from being removed from the protective object while the seat body is covered with the protective object. As a result, the state in which the seat body is covered with the protection object can be maintained. Therefore, the operator can easily wrap the object to be protected with the seat body by the narrowing means. In addition, the operation of narrowing down the sheet main body by the narrowing-down means can be performed indirectly using a tool such as a bark having electrical insulation. As a result, the operator can be prevented from coming into contact with an electric wire or the like to receive an electric shock.

Furthermore, the present invention provides a distance between which a protective sheet body that is attached to a protective object including a wire support structure for supporting an electric wire and a wire part in the vicinity thereof and that protects the protective object from the outside is in contact with the protective sheet body. A holding tool,
Clamping means for resiliently clamping the object to be protected;
A separation holder characterized in that it includes an isolating means that is provided so as to surround the clamping means and arranges the sheet main body of the protective sheet body at a predetermined distance from the object to be protected.

  According to the present invention, the separating means is provided so as to surround the separation holder, and the protective sheet body and the protection target object are arranged at a predetermined distance. Therefore, it can prevent that a protection sheet body and a protection target object contact. As a result, when the object to be protected is heated and energized, it is possible to prevent the protection sheet from being damaged by contacting the object to be protected. In addition, it is possible to reliably prevent the worker from coming into contact with an object to be protected that generates heat and is energized.

  Since the separation holder elastically holds the object to be protected, the holding means can be configured to be detachable from the object to be protected. Thus, the operator can easily attach and detach the separation holder to / from the protection target. Also, the operator uses a tool such as a bark that has electrical insulation to attach the separation holder to the object to be protected, and grips the separation holder and presses the separation holder against the object to be protected. The holder can be indirectly attached to the object to be protected. As a result, the operator can be prevented from coming into contact with an electric wire or the like to receive an electric shock.

  Furthermore, this invention is provided in at least any one of two adjacent electric wire parts, or at least one of an adjacent electric wire part and an electric wire support structure, The said two electric wire parts, or the said electric wire The portion and the wire support structure are prevented from contacting or approaching each other.

  According to the present invention, by providing the separation holder, the two electric wire portions or the electric wire portion and the electric wire support structure are prevented from contacting or approaching each other. Therefore, it is possible to prevent the parts from coming into contact with each other or coming close to each other by the separation holder. Accordingly, even when the worker works near the electric wire portion or the electric wire support structure, the respective parts are prevented from contacting or approaching each other, so that the worker can work safely. .

  ADVANTAGE OF THE INVENTION According to this invention, it can prevent that a protection sheet body is damaged by contacting a protection target object. Further, since the protection target object is covered with the protection sheet body, it is possible to reliably prevent the worker from coming into contact with the protection target object that is generating heat and being energized. As a result, the operator can be prevented from coming into contact with an electric wire or the like to receive an electric shock.

  Moreover, according to this invention, it can prevent that a protection sheet body and a protection target object contact. Therefore, when the protection target object generates heat and is energized, it is possible to prevent the protection sheet body from being damaged by coming into contact with the protection target object. Moreover, since the protection target object equipped with the separation holder is covered with the protection sheet body from the outside together with the separation holder, the protection object can be covered with the protection sheet body. Therefore, it is possible to reliably prevent the worker from coming into contact with the object to be protected that generates heat and is energized. As a result, the operator can be prevented from coming into contact with an electric wire or the like to receive an electric shock.

  Furthermore, according to this invention, the state which covered the sheet | seat main body with the protection target object can be maintained. Moreover, the operation | work which provides a protective sheet body in the state contact | abutted to a separation holder can be performed from the outer side of a protective sheet body. As a result, the operator can be prevented from coming into contact with an electric wire or the like to receive an electric shock.

  Furthermore, according to this invention, it can prevent that a protection sheet body contacts and protects a protection target object. The operator indirectly holds the separation holder by holding the separation holder against the object to be protected by using a tool such as a bark with electrical insulation that can be attached to the object to be protected. Can be attached to the object to be protected. As a result, the operator can be prevented from coming into contact with an electric wire or the like to receive an electric shock.

  Furthermore, according to the present invention, even when the operator works near the electric wire portion or the electric wire support structure, the respective parts are prevented from contacting or approaching each other, so that the operator can safely Can work.

  FIG. 1 is a perspective view schematically showing a state in which a protection device 20 according to an embodiment of the present invention is attached to a protection object 21. FIG. 2 is a perspective view showing a state in which the separation holder 23 constituting the protection device 20 is attached to the protection object 21. FIG. 3 is a perspective view schematically showing the protection target 21 before the protection device 20 is attached. The protection device 20 includes a protection sheet body 22 and a separation holder 23. The protection target object 21 includes an electric wire support structure for supporting an electric wire and an electric wire portion in the vicinity thereof.

  The protective device 20 is arranged so that the worker can safely work around the protection object 21 when the contact with the vicinity of the protection object 21 is dangerous, such as when the electric wire is a live wire. Is provided so as not to contact. When the protection device 20 is attached to the protection object 21, the operation is indirectly performed using an insulating tool or the like so that the attachment operation can be performed safely. In other words, the protection device 20 is attached to the protection object 21 by the indirect hot wire method.

  FIG. 4 is an enlarged perspective view showing the separation holder 23. FIG. 5 is a front view showing the separation holder 23. The separation holder 23 is attached to the protection object 21 and supports the protection sheet body 22 that covers and protects the protection object 21 from the outside. The separation holder 23 is attached to the protection target object 21 and supports the protection sheet body 22 and the protection target object 21 while maintaining a predetermined distance or more. The separation holder 23 includes a holding part 24 and an isolation part 25. The sandwiching portion 24 is a sandwiching means and resiliently sandwiches the protection target 21. The isolation part 25 is an isolation means and is provided so as to surround the holding part 24, and arranges the sheet main body 39 constituting the protection sheet body 22 at a predetermined distance from the protection object 21. The isolation part 25 is provided so as to surround the clamping position by the clamping part 24. The separation holder 23 of the present embodiment is preferably used particularly when attached to a cable-like object such as an electric wire.

  The holding portion 24 includes a first holding body 26 and a second holding body 60. The separator 25 includes a separator 27 and a connecting body 28. The first holding body 26 and the separator 27 are formed in a substantially cylindrical shape. The diameter of the first holding body 26 is formed smaller than the diameter of the separator 27, and the first holding body 26 is arranged concentrically with the separator 27. The height dimension that is the dimension in the axial direction of the first holding body 26 is formed smaller than the height dimension that is the dimension in the axial direction of the separator 27. The height dimension of the first holding body 26 is, for example, 15 mm, and the height dimension of the separator 27 is, for example, 30 mm.

  The first holding body 26 is formed so that one place in the circumferential direction is divided, and both end portions in the circumferential direction of the first holding body 26 are configured to be elastically close to and away from each other. The separator 27 is formed radially outward from both ends in the circumferential direction of the first holding body 26, and a concave portion 38 that is concave inward in the radial direction is formed in a part of the circumferential direction. Moreover, the circumferential direction center part of the recessed part 38 is formed so that the circumferential direction may be divided. Such a separator 27 is configured such that the central portion in the circumferential direction of the recess 38 can be elastically moved toward and away from each other.

  The holding portion 24 is configured to further include a grip portion 48. The grip portion 48 is the outer peripheral surface portion 29 of the first holding body 26 and is formed so as to protrude radially outward from the central portion in the circumferential direction. The grip portion 48 is formed in a shape that can be gripped by a tool such as a bark. The grip portion 48 is formed in a flat plate shape, for example. Therefore, the operator can convey the separation holder 23 by grasping the grasping portion 48 using a tool such as a bark.

  The first holding body 26 and the separator 27 are connected by a connecting body 28. The connection body 28 includes a first connection piece 31 and a second connection piece 32. Each connection piece 31 and 32 is flat form, Comprising: A thickness dimension is equal to the height dimension of a 1st holding body, and is formed integrally with a 1st holding body. A plurality of the first connection pieces 31 are arranged in the circumferential direction of the first holding body 26 and the separator 27, and four in the present embodiment. Each first connecting piece 31 is disposed by extending the outer peripheral surface 29 of the first holding member 26 and the inner peripheral surface 30 of the separator 27 in the radial direction of the first holding member 26 and the separator 27. .

  The 2nd connection piece 32 is formed in a substantially L shape seeing from the thickness direction one side. One end of the second connecting piece 32 is connected to the outer peripheral surface 29 of the first holding body 26, and the other end is the inner peripheral surface of the separator 27 and is connected to the vicinity of both ends in the circumferential direction. . Each connecting body 28 is formed with a drainer 33 in the middle in the longitudinal direction. Each drainer 33 is formed so as to protrude outward in the thickness direction of each coupling body 28. By forming such a drainer 33, it is possible to make it difficult for rainwater or the like to enter the first holding body 26 inward in the radial direction through each connecting body 28 from the radially outer side. This prevents the object to be protected from corrosion by rainwater. Both ends in the circumferential direction of the first holding body 26 and both ends in the circumferential direction of the separator 27 are not connected in the radial direction and are separated. By being divided in this way, it has the same effect as the drainer 33 formed in each coupling body 28.

  Since the isolation part 25 is thus configured, the first holding body 26 connected by the connection body 28 is also separated in the circumferential direction by deforming the isolation body 27 so as to be separated in the circumferential direction. Transforms into Therefore, by displacing the separating portion 25 by the electric wire, the electric wire first comes into contact with the concave portion of the separator 27. When the electric wire is further displaced inward in the radial direction of the separator 27, the concave portion of the separator 27 is deformed so as to be separated in the circumferential direction. Further, along with the deformation of the separator 27, both end portions in the circumferential direction of the first holding body 26 are deformed so as to be separated from each other. As a result, the electric wire is guided to a radially inner region of the first holding body 26. Further, the first holding body 26 and the separator 27 are arranged in the circumferential direction so that the electric wire does not easily fall off from the separating portion 25 after the electric wire is arranged in the radially inner region of the first holding body 26. It approaches and returns to the state where both circumferential ends abut.

  Further, by selecting the height dimension of the separator 27, the area of the outer peripheral surface portion of the separator 27 can be increased, and the portion where the protective sheet body 22 and the separator 27 abut can be increased. As a result, the possibility that the protection sheet 22 abuts against the protection object 21 can be reduced.

  The second holding member 60 includes a first holding piece 34, a second holding piece 35, a central shaft body 36, a spring member, and a holding jig 73. Each sandwiching piece 34, 35 is a longitudinal member. The central shaft body 36 is a columnar member. Each of the holding pieces 34 and 35 is disposed so that the axial direction of the central shaft body 36 and the thickness direction of each of the holding pieces 34 and 35 are substantially parallel to each other, in the vicinity of the middle portion in the longitudinal direction of each holding piece 34 and 35. It is inserted through the central shaft body 36. As a result, the holding pieces 34 and 35 are connected to each other around the angular displacement axis L24 that is the axis of the central shaft body 36 so as to be angularly displaceable. In other words, when one end in the longitudinal direction of each of the holding pieces 34 and 35 is in contact with each other, the other end in the longitudinal direction is separated from each other, and conversely, when one end in the longitudinal direction is separated from each other, the other end in the longitudinal direction Are configured to abut one another.

  The axial direction of the central shaft body 36 is substantially parallel to the axial direction of the first holding body 26, and is disposed in the vicinity of the central portion in the circumferential direction of the first holding body 26. The central shaft body 36 is mechanically connected to the first holding body 26 by a bolt or the like, and is configured to be detachable. Each of the holding pieces 34 and 35 is formed in a curved shape so that the longitudinal end portions 61 and 62 can be securely held without damaging the electric wire or the like. Each of the holding pieces 34 and 35 is formed such that the other end 63 and 64 in the longitudinal direction can be gripped by a tool such as a bark.

  The spring member is a pressing force generating means for generating a pressing force with which the longitudinal end portion 62 of the second sandwiching piece 35 abuts against the longitudinal end portion 61 of the first sandwiching piece 34, specifically, a spring force. For example, it is realized by a torsion coil spring. When the operating force is not given by the operator, the holding portion 24 is in a state in which the longitudinal end portions 61 and 62 of the holding pieces 34 and 35 are in contact with each other by the spring force of the spring member (hereinafter, referred to as “the holding force”). It is simply called “contact state”). From this contact state, an operation force greater than the spring force is applied by the operator's operation, and the other end portions 63 and 64 in the longitudinal direction of the holding pieces 34 and 35 are in contact with each other around the angular displacement axis L24. Angular displacement. Thus, the abutting state can be changed to a state in which the longitudinal ends 61 and 62 of the holding pieces 34 and 35 are separated from each other (hereinafter, simply referred to as “separated state”). When the operating force is released from this separated state, the holding pieces 34 and 35 are angularly displaced about the angular displacement axis L24 by the spring force of the spring member, and are brought into contact. The spring force of the spring member is selected so as not to undesirably deform the electric wire and not easily fall off when the electric wire is pinched in the contact state.

  FIG. 6 is a perspective view showing the holding jig 73. FIG. 7 is a view showing the holding jig 73, FIG. 7 (1) is a front view showing the holding jig 73, and FIG. 7 (2) is a plan view showing the holding jig 73. FIG. 7 (3) is a side view showing the holding jig 73. The holding jig 73 has a substantially U-shaped cross section. The sandwiching jig 73 includes a flat bottom portion 73a and two wall portions 73b extending in the thickness direction of the bottom portion 73a. The width dimension of the bottom 73a is selected so that the holding pieces 34 and 35 are fitted in the width direction. Each wall 73b is formed with a through hole coaxially formed at one end 73c in the longitudinal direction and penetrating in the thickness direction. Each wall portion 73b is formed in a key-like key portion so that the electric wire is hooked on the other longitudinal end portion 73d. Such a holding jig 73 is provided on either one of the holding pieces 34 and 35 so that the central shaft body 36 is inserted through the formed through hole. By providing such a holding jig 73, it is possible to reliably prevent the electric wire from dropping off when the electric wire is pinched while the holding pieces 34 and 35 are in contact with each other. Further, in the state where the separation holder 23 is attached to the electric wire, the axial direction of the electric wire and the longitudinal direction of the holding jig 73 are always substantially vertical by the other end 73d in the longitudinal direction of the holding jig 73. Can do. Therefore, it is possible to prevent the separation holder 23 from being undesirably inclined with respect to the electric wire, and it is possible to maintain stability.

  Thus, since the 2nd holding body 60 elastically holds an electric wire, it can comprise the 2nd holding body 60 so that attachment or detachment is possible with respect to an electric wire. Thus, the operator can easily attach and detach the separation holder 23 to / from the electric wire. Further, the operator can indirectly attach the separation holder 23 to the electric wire by an indirect method using a tool capable of attaching the separation holder 23 to the electric wire, for example, a bark having electrical insulation. As a result, the operator can be prevented from coming into contact with an electric wire or the like to receive an electric shock. Therefore, even when the electric wire is a live wire, it is possible to perform the work of attaching the separation holder 23 while ensuring the safety of the operator.

  The isolation part 25 is provided so as to surround the clamping position. Moreover, when the isolation | separation part 25 covers an electric wire from the outer side using a protection sheet body, it attaches the separation holder 23 to an electric wire, and supports a protection sheet body and an electric wire at a predetermined distance. Specifically, when the separation holder 23 is attached to the electric wire, the distance from the center of the electric wire to the outer peripheral surface of the separator 27 can be made constant. Therefore, it can prevent that a protection sheet body and an electric wire contact. Thereby, when the electric wire is energized, it is possible to prevent the protective sheet from being damaged by contacting the electric wire. Moreover, it can prevent reliably that an operator contacts the electric wire which is supplying with electricity, in other words, the electric wire in a live state.

  The separation holders 23 and 50 are provided on at least one of the two adjacent electric wire portions, or on at least one of the adjacent electric wire portion and the electric wire support structure, thereby the two electric wire portions. Each other or the electric wire portion and the electric wire support structure prevent contact or approach to each other. Therefore, it is possible to prevent the parts from coming into contact with or approaching each other and being damaged by the separation holders 23 and 50. Accordingly, even when the worker works near the electric wire portion or the electric wire support structure, the respective parts are prevented from contacting or approaching each other, so that the worker can work safely. .

  FIG. 8 is a perspective view showing another example of the separation holder 50. FIG. 9 is a front view showing the separation holder 50. The spacing holder 50 of this example is similar to the spacing holder 23 shown in FIGS. 4 and 5 described above, and the configuration of this example is given the same reference numerals as the corresponding configuration in the spacing holder 23 described above. In addition, only different configurations will be described, and description of similar configurations will be omitted. The separation holder 50 of the present example is configured by the remaining portion excluding the second holding body 60 from the above-described separation holder 23.

  In the separation holder 50, the first holding body 26 functions as a holding means. The separation holder 50 is suitably used for the protection object 21 such as a lever. The inner diameter of the first holding body 26 is selected based on the shape of the insulator and is formed slightly smaller than the outer shape of the position where the insulator is attached.

  By attaching the second holding body 60 constituting the above-mentioned separation holder 23 to the separation holder 50, the above-mentioned separation holder 23 can be realized. Therefore, the configuration of the separation holder 50 according to the present embodiment can be changed depending on whether the protection target 21 is an electric wire or a lever. Therefore, the worker can cope with various protection objects 21 by changing the configuration of the separation holder 50 at the work site, and can improve work efficiency.

  FIG. 10 is a perspective view showing still another example of the separation holder 80. FIG. 11 is a front view showing the separation holder 80. FIG. 12 is a perspective view showing a state in which the second holding body 60 is removed from the separation holder 80. FIG. 13 is a front view showing a state in which the second holding body 60 is removed from the separation holder 80. The spacing holder 80 of this example is similar to the spacing holders 23 and 50 shown in FIGS. 4 to 9 described above, and the configuration of this example has the same reference as the corresponding configuration in the spacing holder 23 described above. Only a different configuration will be described with reference numerals, and description of similar configurations will be omitted. In the separation holder 50 of this example, the shapes of the separator 27a and the first holding member 26a are different.

  The separator 27a has a cross-sectional shape in the axial direction having a small air resistance, for example, a streamline shape, and is formed in a substantially circular shape in the present embodiment. Since the separator 27a is formed from a shape having a small air resistance, it is possible to reduce the wind pressure load. Therefore, the separator 27a can prevent an adverse effect caused by wind or the like.

  A plurality of first holding bodies 26a are formed in the circumferential direction so as to be divided into a plurality of, in this example, three places, and notches 81 are formed, and both ends in the circumferential direction of the first holding body 26 are elastically connected to each other. It is configured to be close to and away from. Since the first holding body 26a is formed with the notches 81, both end portions in the circumferential direction can be easily moved close to and away from each other, and the operability can be improved.

  In the separation holder 80, the first holding body 26 functions as a holding means. The inner diameter of the first holding body 26 is selected based on the shape of the insulator and is formed slightly smaller than the outer shape of the position where the insulator is attached. The first holding body 26 a can be easily attached to the protection target object 21 by forming the notch portion 81. Therefore, operability and workability are improved.

  FIG. 14 is a perspective view showing still another example of the separation holder 82. FIG. 15 is a front view showing the separation holder 82. FIG. 16 is a perspective view showing a state in which the second holding body 60 is removed from the separation holder 82. FIG. 17 is a front view showing a state in which the second holding body 60 is removed from the separation holder 82. The spacing holder 82 of this example is similar to the spacing holder 80 shown in FIGS. 10 to 13 described above, and the configuration of this example is given the same reference numerals as the corresponding configuration in the spacing holder 80 described above. Only different configurations will be described, and description of similar configurations will be omitted. In the separation holder 82 of this example, the shapes of the separator 83 and the first holding member 84 are different.

  The separator 83 is formed so that the central portion in the circumferential direction is gently convex outward in the radial direction. By forming the separator 83 in this manner, when the circumferential end portions are brought close to and separated from each other, the distance from the circumferential end portions to the fulcrum can be increased. As a result, both end portions in the circumferential direction of the separator 83 can be easily displaced from each other, and the operability is improved.

  The first holding member 84 is connected to the central portion in the circumferential direction so as to be angularly displaceable, and both end portions in the circumferential direction are close to and away from each other. The first holding body 84 is provided with a pressing force generator 85 at the center in the circumferential direction. The pressing force generator 85 applies force in a direction in which both circumferential ends of the first holding body 84 are close to each other. The pressing force generator 85 is realized by a spring member, for example. Therefore, when displacing the both ends in the circumferential direction of the first holding body 84 in the direction of separating, the displacement is performed against the force of the pressing force generating portion. By configuring the first holding body 84 in this way, both ends in the circumferential direction are close to each other in a natural state, and when the protection target 21 is attached, the both ends in the circumferential direction can be separated. it can.

  Further, the first holding body 26 is formed with a plurality of abutting portions 70 that are convex inward in the radial direction, four in the present embodiment, and spaced in the circumferential direction. The abutting portion 70 has its radially inner portion abuts against the protection object 21 and is elastically pinched.

  Further, a guide piece 72 is further formed on the first holding body 26. The guide pieces 72 are formed at both ends in the circumferential direction of the first holding body 26 so that the protection object 21 is smoothly guided to the holding position, in other words, the protection object 21 is attached to the first holding body 26. It is provided so as not to interfere with the mounting work by being caught.

  FIG. 18 is a perspective view showing still another example of the separation holder 86. FIG. 19 is a front view showing the separation holder 86. FIG. 20 is a perspective view showing a state where the second holding body 60 is removed from the separation holder 86. FIG. 21 is a front view showing a state in which the second holding body 60 is removed from the separation holder 86. The spacing holder 86 of this example is similar to the spacing holder 82 shown in FIGS. 14 to 17 described above, and the configuration of this example is given the same reference numerals as the corresponding configuration in the spacing holder 82 described above. Only different configurations will be described, and description of similar configurations will be omitted. In the separation holder 86 of this example, the shapes of the separator 87 and the first holding member 88 are different.

  The first holding member 88 is formed with a stress relaxation portion 71. The stress relieving part 71 relieves stress so as not to be undesirably deformed when both ends in the circumferential direction of the first holding body 26 are elastically displaced toward and away from each other. The grip portion 48 is disposed so as not to hinder stress relaxation when the stress relaxation portion 71 relaxes the stress. Therefore, the operator can convey the separation holder 23 by grasping the grasping portion 48 using a tool such as a bark.

  The first holding body 26 and the separator 27 are connected by a connecting body 28. The connection body 28 is substantially cylindrical and is formed integrally with the first holding body. The draining effect can be further improved by forming a plurality of drainers 33 in the same connector 28 as in the present embodiment.

  You may comprise so that a cylindrical body may be provided in the inner peripheral part of the 1st holding body 26. FIG. This cylindrical body also has a function as a holding means. The cylindrical body is, for example, a cylindrical shape having a substantially C-shaped cross section, and is configured such that both ends in the circumferential direction can be elastically deformed. The inner diameter of the cylindrical body is selected based on the shape of the insulator that is the protection target 21, and is formed slightly smaller than the outer shape of the position where the insulator is attached. The cylindrical body is concentric with the first holding body 26, and is arranged so that both ends in the circumferential direction face both ends in the circumferential direction of the separator 27. The cylindrical body is coupled to the first holding body 26 and the connecting body. The connection body is arranged so as to extend in the radial direction from the outer peripheral portion of the cylindrical body to the inner peripheral portion of the first holding body 26.

  By providing the cylindrical body in the first holding body 26 in this manner, the inner diameter of the separation holder 50 is set to be equal to the inner diameter of the first holding body 26 and the cylindrical shape depending on whether the connecting body is divided by the dividing means. It can be selected according to the inner diameter of the body. Therefore, the operator can select the inner diameter of the holding portion 24 at the work place according to the outer diameter of the insulator to which the separation holder 50 is attached. Thereby, workability can be improved. Moreover, since it is not necessary to change the shape of the holding part 24 according to the outer diameter of a lever, manufacturing cost can be reduced. A plurality of cylindrical bodies may be provided continuously inward in the radial direction. By providing a plurality, it is possible to cope with various outer diameters of the insulator.

  The separator 27 is formed with a plurality of notches that divide the circumferential direction, and each notch is configured such that the interval between adjacent notches becomes narrower toward both ends in the circumferential direction. The separator 27 can be easily separated by forming a notch. Each notch is formed in a shape that can be separated smoothly without hindering separation of the separator, for example, a tapered shape. Such a notch part is comprised so that the space | interval of the notch part adjacent toward the circumferential direction both ends may become narrow, for example. As a result, both end portions in the circumferential direction of the separator can be easily deformed. Therefore, the operator can facilitate the operation of attaching the isolation part 25 to the electric wire.

  FIG. 22 is a front view showing the protective sheet body 22. FIG. 23 is an enlarged front view showing a part of the protective sheet body 22. In FIG. 22, the thickness dimension of the cord-like member 40 is omitted for easy understanding. The protection sheet body 22 covers and protects the protection target object 21 from the outside. The protective sheet body 22 includes a sheet main body 39 and a cord-like member 40. The sheet body 39 is made of, for example, a material having electrical insulation and flexibility. In the present embodiment, the sheet main body 39 is configured such that a plurality of square frames are adjacent to each other, and each frame shares a side portion with the adjacent frame. In other words, the sheet body 39 is configured in a net shape. The rope member 40 is a narrowing means, and in a state where the protection target object 21 is covered by the sheet main body 39, the sheet main body 39 is narrowed down to prevent the protection target object 21 from falling off.

  The cord-like member 40 is locked to the edge portion 41 of the sheet main body 39. In the present embodiment, the cord-like member 40 is locked so as to sew the mesh of the edge portion 41 of the sheet main body 39. The cord-like member 40 is locked by inserting adjacent meshes in different directions in the thickness direction, for example. There may be a plurality of intervals between the meshes to be inserted. A key-like hook 42 is locked to the end of the cord-like member 40. The rope member 40 is made of, for example, an elastic material.

  FIG. 24 is a perspective view showing a simplified example of attaching the protection sheet body 22 to the protection target object using the cord-like member 40. In FIG. 24, the thickness dimension and the mesh of the sheet main body 39 are omitted for easy understanding. An operator covers such a protective sheet body 22 from the outside using a tool such as a bark or the like to cover the protection target object 21 to which the separation holder 23 is attached. The operator squeezes the ridge member 40 with respect to the sheet main body 39 with a tool, thereby binding the edge 41 of the sheet main body 39 and wrapping the object to be protected with the sheet body 39. Specifically, the operator hooks one of the hooks 42 locked to both ends of the cord-like member 40 near the end of the cord-like member 40 to which the other hook 42 is latched. By further pulling one hook 42 as it is, the worker can make the edge portion 41 of the seat main body 39 into an annular shape and wrap the object to be protected by the seat main body. Further, the worker attaches the protective sheet body 20 to the protection target object 21 by fixing one hook 42 to the protection target object outside the protective sheet body 22 and fixing it. As a result, the protection sheet body 22 can be prevented from easily falling off from the protection object 21 due to external factors such as wind and rain.

  In this way, by narrowing the rope member 40 with respect to the sheet main body 39, the edge 41 of the sheet main body 39 is bound, and the protection object 21 can be held in a state of being wrapped by the sheet main body 39. Therefore, the operator can wrap the protection object 21 with the seat body 39 by a simple operation of narrowing the cord-like member 40. Moreover, by making the rope member 40 a material having elasticity, the state in which the protection object 21 is covered with the sheet main body 30 can be reliably maintained by utilizing the elastic force of the rope member 40.

  In the present embodiment, the protective device 20 can be easily attached to the object to be protected, as well as easily removed. Therefore, when the protective device 20 is attached for a temporary work, it can be removed by a simple work, so that convenience is improved.

  Further, the operation of narrowing the cord-like member 40 with respect to the sheet main body 39 can be performed indirectly using a tool such as a bark having electrical insulation. As a result, the operator can be prevented from coming into contact with an electric wire or the like to receive an electric shock.

  In the present embodiment, the width of the frame of the lattice frame constituting the sheet main body 39 is constant between the frames, but is not limited thereto. You may comprise the width dimension of a lattice frame so that the edge part 41 of the sheet | seat main body 39 may become larger than the remaining site | parts. Accordingly, the strength of the edge portion 41 can be increased, and the sheet main body 39 can be prevented from falling off from the cord-like member 40 due to breakage or the like. Further, the manufacturing cost of the sheet main body 39 can be reduced by increasing the width dimension of only the edge portion 39 without increasing the width dimension of the entire lattice frame.

  FIG. 25 is an enlarged front view showing a part of the protective sheet body 22, and is a view showing another example of locking the cord-like member 40 to the seat body 39. The first hook 43 is attached to the mesh of the edge portion 41 of the sheet main body 39. The first hook 43 is a connecting means for connecting the seat body 39 and the cord-like member 40, and one end portion of the first hook 43 is locked to the seat body 39, and the other end portion of the first hook 43. Is detachably provided on the cord-like member 40. In the present embodiment, the first hook 43 is a substantially S-shaped hook. One end of the first hook 43 is closed in the circumferential direction after being attached to the seat body 39, and the other end is formed in a key shape. The A plurality of such S-shaped first hooks 42 are attached. A cord-like member 40 is attached to the other end of the first hook 42, and a key-like second hook is attached to the end of the cord-like member 40. The interval at which the first hook 42 is attached is selected based on the mesh interval, the size of the object to be protected, and the like. As a result, the same effects as those of the protective sheet body 22 described above can be realized.

  FIG. 26 is a front view showing a part of the protective sheet body 22 in an enlarged manner, and is a view showing still another example in which the cord-like member 40 is locked to the seat main body 39. In FIG. 26, the width dimension and the like are omitted for easy understanding. In this example, the first hook 43 is attached to the mesh of the edge portion 41 of the sheet main body 39 as in FIG. In the sheet main body 39 of this example, the mesh interval in the vicinity of the edge portion 41 is finer than the mesh interval in the remaining part, and the strength of the edge portion 41 is formed. The plurality of first hooks 43 are locked together on the side portions of the plurality of grids, in this example, four lattice frames. By locking the sheet main body 39 in this way, the strength of the sheet main body 39 against the displacement of the first hook 43 can be increased, and the cord-like member 40 is prevented from falling off due to the breakage of the sheet main body 39 or the like. Can do. Therefore, the same effect as the above-described protective sheet body 22 can be achieved.

  FIG. 27 is a perspective view showing the protective sheet body 22, and is a view showing still another example in which the cord-like member 40 is locked to the sheet main body 39. FIG. 28 is a perspective view showing, in a simplified manner, another example of a state in which the protection device 20 is mounted on the protection target object 21. In FIG. 28, for easy understanding, the sheet body 39 is virtually indicated by a virtual line, and the thickness dimension and the mesh of the sheet body 39 are omitted. A plurality of sheet main bodies 39, three in this embodiment, are used, and the edge portions 41 of the respective sheet main bodies 39a to 39c are locked to cover the protection object 21 from the outside. Specifically, the two sheet main bodies 39a and 39b are arranged at intervals in the thickness direction, and the two edge portions 41 of the sheet main body 39c formed in a triangular shape and the two sheet main bodies 39a, The edge part 41 of b is latched. The length dimension of the edge portion 41 of the triangular sheet main body 39c is smaller than the length dimension of the two sheet main bodies 39a and 39b to be locked.

  Such sheet main bodies 39a to 39c are provided so as to cover the protection target object 21, for example, the transformer, and the protection target object 21 in a predetermined region is covered using the remaining portions of the two sheet main bodies 39a and 39b. Provided. In this state, the sheet main body 39 is narrowed down using the rope member 40 to prevent the sheet main body 39 from falling off from the protection target 21. By using such a protection sheet body, the protection object 21 can be easily covered, and workability is improved. Therefore, the same effect as the above-mentioned protective sheet body can be achieved.

  FIG. 29 is a perspective view showing a simplified example of a state in which the protection device 20 is attached to the protection target 21. FIG. 30 is a perspective view showing a state in which the separation holder 23 is attached to the protection target 21. FIG. 31 is a perspective view schematically showing the protection target object 21 before the protection device 20 is attached. In this example, the protection target object 21 is a plurality of electric wires 46 connected to the electric wire support structure 45 and the electric wire support structure 45. The protective device 20 is implemented by being mounted for each electric wire. The protection device 20 is not limited to this, and may be realized by collectively covering a plurality of electric wires from the outside.

  The protective device 20 may be attached to each electric wire depending on the ease of work based on the distance between adjacent electric wires or the like, or a plurality of electric wires may be collectively covered from the outside. In addition, the protective device 20 to be mounted is mounted on the protection target object 21 configured so that the spacers are used for a plurality of wires and the wires are not in contact with each other by attaching the separation holder 23 to each wire. Can do.

  FIG. 32 is a front view showing an example of a protection object to which the separation holder 50 is attached. FIG. 32A shows the lightning protection CF, FIG. 32B shows the CF, and FIG. 32C shows the lightning arrester. FIG. 33 is a front view showing another example of a protection target to which the separation holder 50 is attached. FIG. 33 (a) is a solid tension insulator, FIG. 33 (b) is a tension insulator, and FIG. 33 (c) is a salt-resistant solid tension insulator. FIG. 34 is a front view showing still another example of the protection object to which the separation holder 50 is attached. Fig. 34 (a) is a solid pin insulator, Fig. 34 (b) is a pin insulator, and Fig. 34 (c) is a salt-resistant solid pin insulator. The separation holder 50 can be attached to the insulator shown in FIGS. 32 to 34, for example, as shown by the phantom line in FIG. 34 (b). Further, by forming the cross-sectional shape of the separation holder 50 in the height direction to be substantially U-shaped, the separation holder 50 can be attached without contacting the electric wire 23 attached to the insulator. Therefore, the separation holder 50 can achieve the same effect as the separation holder 23 described above.

It is a perspective view which simplifies and shows the state which attached the protection apparatus 20 of one Embodiment of this invention to the protection target object 21. FIG. FIG. 3 is a perspective view showing a state in which a separation holder 23 constituting the protection device 20 is attached to a protection object 21. It is a perspective view which simplifies and shows the protection target object 21 before the protection apparatus 20 is attached. It is a perspective view which expands and shows the separation holder. It is a front view which shows the separation holder 23. FIG. 7 is a perspective view showing a holding jig 73. FIG. It is the front view, top view, and side view which show the holding jig 73. FIG. 10 is a perspective view showing another example of the separation holder 50. It is a front view which shows the separation holder 50. FIG. FIG. 12 is a perspective view showing still another example of the separation holder 80. It is a front view which shows the separation holder 80. FIG. FIG. 6 is a perspective view showing a state in which a second holding body 60 is removed from a separation holder 80. It is a front view which shows the state which remove | excluded the 2nd holding body 60 from the separation holder 80. FIG. FIG. 12 is a perspective view showing still another example of the separation holder 82. It is a front view which shows the separation holder 82. FIG. FIG. 6 is a perspective view showing a state in which a second holding body 60 is removed from a separation holder 82. It is a front view which shows the state which remove | excluded the 2nd holding body 60 from the separation holder 82. FIG. 12 is a perspective view showing still another example of the separation holder 86. It is a front view which shows the separation holder 86. FIG. FIG. 6 is a perspective view showing a state where a second holding body 60 is removed from a separation holder 86.

FIG. 6 is a front view showing a state in which a second holding body 60 is removed from a separation holder 86. It is a front view which shows the protection sheet | seat body. It is a front view which expands and shows a part of protection sheet | seat body. FIG. 4 is a perspective view showing a simplified example of attaching the protection sheet body 22 to a protection object using the cord-like member 40. It is a front view which expands and shows a part of protection sheet | seat body 22, Comprising: It is a figure which shows the other example which latches the cord-shaped member 40 to the sheet | seat main body 39. FIG. It is a front view which expands and shows a part of protection sheet | seat body 22, Comprising: It is a figure which shows the further another example which latches the cord-shaped member 40 to the sheet | seat main body 39. FIG. FIG. 11 is a perspective view showing the protective sheet body 22 and is a view showing still another example of locking the cord-like member 40 to the sheet main body 39. It is a perspective view which simplifies and shows the other example of the state which mounted | wore the protection target object 21 with the protection apparatus 20. FIG. FIG. 3 is a perspective view schematically showing an example of a state in which the protection device 20 is attached to the protection object 21. FIG. 3 is a perspective view showing a state in which a separation holder 23 is attached to an object 21 to be protected. It is a perspective view which simplifies and shows the protection target object 21 before the protection apparatus 20 is attached. It is a front view which shows an example of the protection target object with which the separation holder 50 is mounted | worn. It is a front view which shows the other example of the protection target object with which the separation holder 50 is mounted | worn. It is a front view which shows the further another example of the protection target object with which the separation holder 50 is mounted | worn. It is a perspective view which simplifies and shows the state which attached the protection apparatus 1 of the 2nd prior art to the utility pole 2 grade | etc.,. It is a perspective view which simplifies and shows the state before attaching the protective device 1 to the utility pole 2 grade | etc.,. It is a perspective view which simplifies and shows the state which attached the protection apparatus 5 of the 3rd prior art to the utility pole 2 grade | etc.,.

Explanation of symbols

DESCRIPTION OF SYMBOLS 20 Protection apparatus 21 Protection target object 22 Protection sheet | seat body 23, 50, 80, 82, 86 Separation holder 24 Nipping part 25 Isolation part 39 Sheet | seat main body 40 Cord-like member 45 Electric wire support structure 46 Electric wire

Claims (5)

A protective device for protecting an object to be protected including an electric wire support structure for supporting an electric wire and an electric wire portion in the vicinity thereof,
A protective sheet covering the object to be protected;
A protective device, comprising: a protective sheet body, and a separation holder that supports the protective object while maintaining the distance above a predetermined distance. Attach a separation holder to the object to be protected,
Cover the object to be protected with the separation holder together with the separation holder from the outside, provide the protection sheet body in contact with the separation holder, narrow down the protection sheet body, A protection method characterized by preventing falling off from a protection target while the protection target is kept at a predetermined distance or more. A protective sheet body that covers and protects an object to be protected including an electric wire support structure for supporting an electric wire and an electric wire portion in the vicinity thereof,
The seat body,
A protective sheet body comprising narrowing means for narrowing the sheet body to prevent the protective object from falling off while covering the protective object. A separation holder that is attached to a protection object including an electric wire support structure for supporting an electric wire and an electric wire portion in the vicinity thereof, and a protective sheet body that covers and protects the protection object from the outside. ,
Clamping means for resiliently clamping the object to be protected;
A separation holder provided by surrounding the clamping means and including an isolating means for arranging the seat body of the protective sheet body at a predetermined distance from the object to be protected.   By being provided in at least one of two adjacent electric wire portions or in at least one of the adjacent electric wire portion and the electric wire support structure, the two electric wire portions or the electric wire portion and the electric wire support structure are provided. The separation holder according to claim 4, wherein an object is prevented from contacting or approaching each other.

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