Laying aid and cable laying method

Abstract

The present invention aims to solve the problem of providing a novel device that can assist in appropriate cable wiring to a conductive path using a guiding device. 【Solution means】 In order to solve the above problems, the present invention is a laying aid for assisting the work of laying a cable on a conductive path, and the laying aid includes a fixing portion fixed to the conductive path and a connecting portion connected to a guiding device for guiding the cable.

Description

Technical Field

[0001] The present invention relates to a laying aid and a cable laying method.

Background Art

[0002] Conventionally, a device for assisting in the wiring of electrical cables in a building has been known. An example of such a device is disclosed in Patent Document 1, for example.

[0003] In Patent Document 1, one end of an electrical cable A to be pulled is inserted into a bag-shaped wire net 1 from an opening 3 of a pulling tool B, and a binding wire 6 or the like is wound around the outer periphery of the wire net 1 near the opening to fix the electrical cable A to the pulling tool B. One end of a main rope 7 is connected to a first ring 2, and the other end of the main rope 7 is passed through a first pulley 9 suspended from a ceiling 8. The other end of the main rope 7 is pulled by a winch to pull up the electrical cable A. At this time, the second ring 5 is tied to the outer periphery of the wire net 1 with a binding wire 10 or the like. When the tip of the pulling tool B approaches the pulley 9 to which the main rope 7 is hung, the binding wire 10 is removed, and an auxiliary rope 11 is connected to the second ring 5. The auxiliary rope 11 is hung on a second pulley 12 provided close to the first pulley 9, and the auxiliary rope 11 is pulled by a winch to pull up the pulling tool B. In this state, the pulling tool B is further pulled up, the main rope 7 connected to the first ring 2 is removed from the first pulley 9, the main rope 7 is pulled in the direction of the other end of the cable rack 13 beside it, the auxiliary rope 7 is removed from the second pulley 12, the main rope 7 is pulled to bend the electrical cable and pull it into the cable rack 13. A cable guide 14 is installed at the bent portion of the electrical cable A, and the electrical cable A is directly towed by a towing device 15 to extend the electrical cable A to a predetermined position of the cable rack 13. A method of bending and pulling the tip of the electrical cable A using the pulling tool B is described.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the invention described in Patent Document 1, a cable can be extended from below a building to a predetermined position of a cable rack (conductor path), but the cable extended to the predetermined position of the conductor path cannot be properly wired.

[0006] In addition, in the conventional cable wiring, an induction device for guiding the cable by connecting a belt to the conductor path was fixed. However, depending on the skill of the operator, the induction device could not be properly fixed, and there was a problem that safe and efficient cable wiring could not be performed.

[0007] In view of the above problems, an object of the present invention is to provide a novel device that can assist in proper cable wiring to a conductor path using an induction device.

Means for Solving the Problems

[0008] In order to achieve the above object, the present invention provides a laying auxiliary tool for assisting the work of laying a cable on a conductor path, the laying auxiliary tool including a fixing portion 1 fixed to the conductor path and a connecting portion 2 connected to an induction device for guiding the cable.

[0009] With such a configuration, it is possible to assist in cable laying using an induction device.

[0010] In a preferred embodiment of the present invention, the conductor path includes a path side surface having a predetermined thickness, and the fixing portion has a first fixing surface 11 that abuts from the outside of the path side surface at the outside of the bend of the conductor path and has substantially the same thickness as the path side surface, and a second fixing surface 12 orthogonal to the first fixing surface, in order to be fixed to the conductor path.

[0011] With such a configuration, the laying aid can be fixed to the wire path, and the induction device can be stabilized. Thereby, safe cable laying can be realized.

[0012] In a preferred form of the present invention, the second fixing surface has a through hole 13, and the connecting portion 2 is configured to be detachable through the through hole 13.

[0013] With such a configuration, the laying aid can be used at various locations on the wire path.

[0014] In a preferred form of the present invention, the through hole 13 is drilled at a position where the outer part of the bend of the wire path is sandwiched by the first fixing surface 11 and the connecting portion 2 in order to fix the induction device in a fixed position.

[0015] With such a configuration, the induction device can be fixed to a simple and accurate position.

[0016] In a preferred form of the present invention, the second fixing surface 12 has a through hole for inserting the connecting portion 2, and the through hole 13 is drilled at a position where the bent portion of the wire path is sandwiched by the first fixing surface 11 and the connecting portion 2 in order to receive the force applied when the cable is bent on the wire path side.

[0017] With such a configuration, the force applied to the induction device during cable laying can be received on the wire path side. Thereby, stable cable laying can be realized.

[0018] In a preferred form of the present invention, the through hole 13 is drilled at a position where a predetermined gap that allows a connecting medium for propagating the force applied when the cable is bent to the connecting portion 2 can be wound between the wire path side and the connecting portion 2 inserted through the through hole 13 when the first fixing surface 11 is brought into contact with the wire path side.

[0019] By adopting such a configuration, the connecting medium can be easily wound around the connecting portion, and the cable laying work can be made more efficient.

[0020] In a preferred embodiment of the present invention, the through hole 13 is drilled on a straight line connecting the center of curvature of the cable laid at the bent portion of the conductive path and the center point of the bent portion in order to equally divide the force applied when bending the cable.

[0021] By adopting such a configuration, the force applied to the laying auxiliary tool when bending the cable can be dispersed, and the consumption of the laying auxiliary tool can be reduced.

[0022] In a preferred embodiment of the present invention, the laying auxiliary tool further includes a fastening portion 22, a first fastening auxiliary tool 23, and a second fastening auxiliary tool 24, and the connecting portion 2 is engaged with the fixing portion 1 using the fastening portion 22, the first fastening auxiliary tool 23, and the second fastening auxiliary tool 24.

[0023] By adopting such a configuration, the fixing portion and the connecting portion can be robustly engaged, and the connection of the guiding device can be stabilized.

[0024] Further, in order to achieve the above object, the present invention provides a cable laying method using a laying auxiliary tool including a fixing portion fixed to a conductive path on which a cable is laid and a connecting portion connected to a guiding device for guiding the cable, the method including: a step of bringing the fixing portion into contact with the outside of the bent portion of the conductive path from the outside of the side surface of the conductive path; a step of inserting the connecting portion through a through hole provided in a surface orthogonal to the surface of the fixing portion that contacts the side surface of the conductive path; a step of passing a connecting medium for connecting the connecting portion and the guiding device through the connecting portion; and a step of laying the cable using the guiding device.

[0025] By adopting such a configuration, the safety and efficiency of the cable laying work can be ensured.

Advantages of the Invention

[0026] According to the present invention, it is possible to provide a novel device that can assist in appropriate cable wiring to a conductive path using an induction device.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0028] (Embodiment 1) Hereinafter, the laying aid according to each embodiment of the present invention will be described with reference to the drawings. The description will detail the configuration of the embodiment, the method of implementation, and other embodiments in this order. Note that the following embodiments are examples of the present invention, and the present invention is not limited to the following embodiments. Also, the "approximate" in the application documents means that chamfering or rounding is performed on the subsequent shape, and that the elements constituting the shape are deformed or the length is changed within a range that does not impede the purpose of the configuration.

[0029] The present invention relates to a tool for assisting in laying electrical cables laid in a building. Conventionally, when laying an electrical cable on a cable rack (hereinafter referred to as a wireway) on which the electrical cable is laid, a pulley (hereinafter referred to as a guiding device) for guiding the electrical cable in a straight line or on a curve is connected to a belt, a rope, or the like (hereinafter referred to as a connecting medium), and the guiding device is fixed by attaching the connecting medium to the wireway to lay the electrical cable. However, a certain skill is required to attach the connecting medium to the wireway, and simply attaching the connecting medium to the wireway cannot stably and easily fix the guiding device.

[0030] <1.1. Configuration of Embodiment 1> In contrast, the laying aid in the present invention stably and easily fixes the guiding device and assists in laying the electrical cable. FIG. 1 is a diagram showing the laying aid in Embodiment 1. FIG. 1( a) is an example of a schematic diagram of the laying aid. The laying aid 0 includes a fixing portion 1 fixed to the wireway and a connecting portion 2 connected to the guiding device. The laying aid 0 in the present embodiment has a triangular prism shape with the hypotenuse surface removed and is mounted at a bent portion where the wireway is bent at a right angle or in an arch shape. Hereinafter, the removed surface is referred to as an open surface.

[0031] FIG. 1(b) is an example of a schematic diagram of the fixing portion 1. The fixing portion 1 has a first fixing surface 11, a second fixing surface 12, and a through hole 13. In the present embodiment, the first fixing surface 11 is a surface that abuts against the outside of the side surface of the wireway on the outside of the bent portion of the wireway, and the two abutting surfaces are configured to form a predetermined angle. Note that the first fixing surface 11 may be configured as a single curved surface that abuts against the outside of the side surface of the wireway.

[0032] More preferably, the first fixing surface 11 has a hole with a predetermined size at the center of the surface. Thereby, the weight of the laying aid 0 can be reduced. The shape of the hole is not particularly limited, but a shape having symmetry or the like is preferable. By forming the hole with a predetermined size in this shape, an effect of stabilizing the center of gravity of the laying aid 0 can be expected.

[0033] The second fixing surface 12 is a triangular surface that is orthogonal and adjacent to the first fixing surface, and has a through hole 13 through which the connecting portion 2 is detachably attached.

[0034] In this embodiment, the first fixing surface 11 may have any shape that abuts against the side surface of the wiring path, and the shape of the second fixing surface 12 is not limited to a triangular shape. That is, among the columnar bodies of the shape of the second fixing surface 12, a shape in which the surfaces other than the first fixing surface 11 and the second fixing surface 12 are open surfaces may be used.

[0035] Also, in this embodiment, the fixing portion 1 and the connecting portion 2 are made of the same material (for example, iron or the like), but they may be made of different materials. For example, in order to support the force applied to the fixing portion 1 when guiding an electric cable, a material with higher strength than that of the connecting portion 2 may be used for the material of the first fixing portion 11, and the connecting portion 2 may be lightened. Thereby, while ensuring the safety of cable laying, by lightening the laying auxiliary tool 0, it is possible to facilitate carrying when using it at various bent portions of the wiring path.

[0036] FIG. 1(c) is an example of a schematic diagram of the connecting portion 2. The connecting portion 2 includes a connecting portion main body 21, a fastening portion 22, a first fastening auxiliary tool 23, and a second fastening auxiliary tool 24.

[0037] The connecting portion main body 21 is a bolt, and has a locking portion for stopping the connecting portion 2 inserted through the through hole 13 at one end, and a screwing portion for attaching the fastening portion 22 at the other end. Note that both ends of the connecting portion main body 21 may be screwing portions.

[0038] The first fastening auxiliary tool 23 is a washer and has a hole through which the connecting portion main body can be inserted, and preferably has a hole diameter smaller than the hole diameter of the through hole 13.

[0039] The second fastening auxiliary tool 24 is a spring washer and has a shape in which a part of the first fastening auxiliary tool 23 is cut and twisted.

[0040] Fig. 1(d) is an example of an elevation view of the laying aid 0. In this embodiment, on the locking portion side, a first fastening aid 23 is disposed between the locking portion and the second fixing surface 12, and on the fastening portion 22 side, the first fastening aid 23 and the second fastening aid 24 are disposed between the fastening portion 22 and the second fixing surface 12. They are mounted in the order of the first fastening aid 23, the second fastening aid 24, and the fastening portion 22 in sequence from the second fixing surface 12 side. Note that the order of the first fastening aid 23 and the second fastening aid 24 may be reversed. By combining the first fastening aid 23 and the second fastening aid 24, it is possible to prevent loosening and prevent dropping when loosened, and prevent an accident in which the laying aid 0 comes off from the wire path or the guiding device during the guiding of the electric cable. Further, by using the first fastening aid 23 and the second fastening aid 24 in combination for the engagement between the fixing portion 1 and the connecting portion 2, even if a force due to irregular operation from the guiding device (for example, a repeated operation when laying the cable on the wire path while bending the cable) is applied to the laying aid 0, the engagement between the fixing portion 1 and the connecting portion 2 can be appropriately maintained. In addition, by disposing the first fastening aid 23 between the locking portion and the second fixing surface 12, the contact area can be increased compared to the contact area when the locking portion directly contacts the second fixing surface 12. Thereby, the rotation on the locking portion side generated by the force acting during the guiding of the electric cable can be suppressed, and the loosening prevention and the dropping prevention when loosened of the connecting portion 2 can be achieved.

[0041] Note that in this embodiment, three fastening aids are used for the engagement between the fixing portion 1 and the connecting portion 2, but four or more fastening aids can also be used, or two may be used. Further, in this embodiment, the connecting portion 2 is engaged with the second fixing surface 12 by the fastening portion 22, but it is only necessary that the connecting portion 2 be engaged with the second fixing surface 12, and the mode of the connecting portion 2 is not limited to this.

[0042] Figure 2 is a diagram showing an example of the size of the laying aid 0 in this embodiment. Fig. 2(a) is a plan view of the first fixing surface 11 provided with predetermined holes, showing the size of the first fixing surface 11. In the illustrated example, one surface of the first fixing surface 11 has a thickness of 3.2 mm, a height of 111.4 mm, and a width of 106.8 mm. Here, for the holes of a predetermined size, in order to achieve weight reduction and maintain the strength to withstand the forces acting during the induction of the electrical cable, the area ratio between the area of the holes and the entire area of the first fixing surface 13 is configured to be approximately 1:2. Note that the left and right sides in Fig. 2(a) are common with the sides of the second fixing surface 13.

[0043] Fig. 2(b) is a plan view of the second fixing surface 12, showing the size of the second fixing surface 12. In the illustrated example, one surface of the second fixing surface 12 has a thickness of 3.2 mm and a width of 106.8 mm. Further, the through-hole 13 has a diameter of 18 mm and is drilled on the bisector of the isosceles triangle.

[0044] Fig. 2(c) is a plan view of the connecting portion main body 21, showing the size of the connecting portion main body 21. In the illustrated example, the screwing portion has a diameter of 16 mm, and the connecting portion main body 21 has an overall length of 145 mm. The screwing portion of the connecting portion main body 21 in this embodiment is provided at a part of the other end of the locking portion of the connecting portion main body 21. Thereby, the friction between the connecting medium wound around the connecting portion main body 21 and the screwing portion can be reduced, and the consumption of the connecting medium can be reduced.

[0045] Note that the size of the laying aid 0 is not limited to the above size, and can be suitably changed according to the specifications of the conducting path and the like.

[0046] <1.2. Example of Use of the Laying Aid in Embodiment 1> Hereinafter, with reference to Fig. 3, an example of the use of the laying aid 0 in this embodiment will be described.

[0047] FIG. 3(a) is a plan view showing the positional relationship among a laying aid 0, a connecting medium LM, a wire path GR, an induction device GA, and an electric cable CA when the electric cable is laid at a bent portion of the wire path. In the illustrated example, the laying aid 0 is abutted from the outside of the side surface of the wire path at the bent outside BP of the wire path. The connecting portion 2 is connected to the induction device GA via the connecting medium LM. The electric cable CA is bent by being guided along the pulley portion of the induction device GA by a winch or by hand (see FIG. 4).

[0048] Here, the bent portion of the wire path includes a bent outside BP, which is the outside bent portion of the bent portion of the wire path, and a bent inside (not shown) of the wire path, with the direction in which the electric cable bends being the inside.

[0049] In the present embodiment, the through hole 13 is drilled on a straight line connecting the center of curvature of the cable laid at the bent portion of the wire path and the center point of the bent portion in order to equally divide the force (central force) applied when bending the electric cable. Specifically, the through hole 13 is drilled on a straight line connecting the center of curvature of the cable laid at the bent portion of the wire path and the center point of the bent outside so that the force on the first fixing surface 11 generated by the central force when bending the electric cable is equally divided. More preferably, the through hole 13 is drilled on the line symmetry axis of the second fixing surface 12. Even more preferably, the through hole 13 is drilled at the position of the center of gravity of the second fixing surface 12. Thereby, by dispersing the force related to the laying aid 0 in the laying of the electric cable, the consumption of the laying aid 0 can be reduced. Also, by using laying aids 0 with different positions of the through hole 13 according to the direction in which the electric cable is to be bent, the laying of a flexible electric cable can be assisted.

[0050] In another preferred form, the distance from the hypotenuse of the second fixing surface 12 to the through hole 13 is varied according to the thickness of the second fixing surface 12. Specifically, the distance from the hypotenuse of the second fixing surface 12 to the through hole 13 is varied so as to be shorter as the thickness of the second fixing surface 12 is larger. As a result, the distance from the hypotenuse of the second fixing surface 12 to the through hole 13 becomes shorter (the distance between the through hole 13 and the center point outside the bend becomes longer), so that the central force applied to the guiding device is applied closer to the open surface in the first fixing surface 11. Thus, the laying auxiliary tool 0 adheres more closely to the wire path, and the guiding device can be stably fixed.

[0051] FIG. 3(b) is a perspective view of the laying auxiliary tool 0 that is in contact with the side surface of the wire path outside the bend of the wire path. In the present embodiment, the first fixing surface 11 has a height at which the second fixing surface 12 and the surface orthogonal to the side surface of the wire path of the wire path are in contact. Specifically, the first fixing surface 11 has substantially the same height as the side surface of the wire path of the wire path. Thereby, the laying auxiliary tool 0 can be fixed and attached to the wire path, and the guiding device can be stably fixed.

[0052] In addition, the through hole 13 through which the connecting portion 2 is inserted is drilled at a position where the outer bent portion of the wire path is sandwiched by the first fixing surface 11 and the connecting portion 2 in order to fix the guiding device GA in a fixed position. Conventionally, the guiding device GA has been fixed by tying (fixing) the connecting medium of the wire path. However, in this case, when the fixing of the connecting medium is loose or when the fixing position of the connecting medium is not satisfactory, the guiding device GA cannot be stably fixed. On the other hand, in the present invention, the through hole 13 is drilled at a position where the outer bent portion of the wire path is sandwiched by the first fixing surface 11 and the connecting portion 2, and the guiding device GA can be fixed only by winding the connecting medium around the connecting portion 2 inserted through the through hole 13. As a result, the operation of tying the connecting medium to the wire path is eliminated, and the remarkable effect that the guiding device GA can be stably fixed only by the simple operation of winding through the connecting portion 2 is achieved.

[0053] Preferably, the through hole 13 through which the connecting portion 2 is inserted is drilled at a position where the outer bent portion of the wire path is sandwiched by the first fixing surface 11 and the connecting portion 2 in order to support the force applied when bending the electric cable CA on the side surface of the wire path. Conventionally, by attaching a connecting medium connected to the guiding device GA to the conductor path, the central force applied to the guiding device GA was supported by the conductor path. On the other hand, in the present invention, instead of directly attaching the connecting medium to the conductor path, the connecting medium is wound around the connecting portion 2, the central force applied to the guiding device GA is transmitted to the connecting portion 2, and further, the central force applied to the connecting portion 2 is received by the conductor path via the fixing portion 1.

[0054] Preferably, when the through hole 13 abuts on the first fixing surface 11 and the side surface of the conductor path outside the bend of the conductor path, a predetermined gap is formed between the side surface of the conductor path and the connecting portion 2 inserted through the through hole 13, through which the connecting medium LM can be wound through. Thereby, the guiding device can be easily fixed using the connecting medium. In addition, the connecting medium LM for transmitting the force applied to the guiding device GA to the connecting portion 2 can be easily wound around the connecting portion 2, and the guiding device GA can be stably fixed.

[0055] <1.3. Cable laying method of Embodiment 1> Hereinafter, a cable laying method using the laying auxiliary tool 0 will be described. A worker performing cable laying abuts the first fixing surface 11 of the fixing portion 1 from the outside of the side surface of the conductor path outside the bend of the conductor path, inserts the connecting portion 2 through the through hole 13 provided in the second fixing surface 12, winds the connecting medium around the connecting portion 2, fixes the guiding device to the connecting portion 2 via the connecting medium, and lays the electric cable by pulling the electric cable along the pulley of the guiding device (see FIG. 4).

[0056] (Embodiment 2) Next, referring to FIGS. 5 to 7, Embodiment 2 will be described. In the present embodiment, the laying auxiliary tool 0 is attached to the side surface of the straight conductor path to assist in laying the electric cable.

[0057] In Embodiment 1, the first fixing surface 11 is abutted against the outside of the side surface of the wire path outside the bent portion of the wire path, and the connecting portion 2 is inserted into the through hole 13 provided in the second fixing surface 12, thereby connecting the connecting portion 2 and the guiding device and assisting in laying the electric cable. On the other hand, in the present embodiment, the first fixing portion 11 is abutted against the outside of the side surface of the wire path in the straight portion of the wire path, and the connecting portion 2 is inserted into the through hole 13 provided in the first fixing portion 11, thereby connecting the connecting portion 2 and the guiding device and assisting in laying the electric cable.

[0058] <2.1. Configuration of Embodiment 2> FIG. 5 is a view showing the laying auxiliary tool 0 in Embodiment 2. FIG. 5(a) is an example of a schematic diagram of the fixing portion 1. The fixing portion 1 has a first fixing surface 11 and two through holes 13. In the present embodiment, the first fixing surface 11 has a plate-shaped surface that is abutted against the outside of the side surface of the wire path in the straight portion of the wire path.

[0059] More preferably, the first fixing surface 11 has a hole with a predetermined size at the central portion of the surface. Thereby, the weight of the laying auxiliary tool 0 can be reduced.

[0060] It should be noted that the first fixing surface 11 only needs to have a plate-shaped surface that abuts against the side surface of the wire path, and the portion that does not abut against the side surface of the wire path is not limited to a plate shape.

[0061] The two through holes 13 in the present embodiment have a predetermined interval. Specifically, the predetermined interval has a width longer than the height width of the side surface of the wire path so that the connecting portion main body 21 can be inserted into the fixing portion. Preferably, the predetermined interval has a width substantially the same as the height width of the side surface of the wire path.

[0062] FIG. 5(b) is an example of a schematic diagram of the connecting portion 2. The connecting portion 2 has a connecting portion main body 21, a fastening portion 22, a first fastening auxiliary tool 23, and a second fastening auxiliary tool 24. The connecting portion main body 21 in the present embodiment is a substantially U-shaped bolt and has a connecting intermediate portion 211 and a connecting essential portion 212.

[0063] The connecting intermediate part 211 has screwing parts at both ends for inserting the through holes 13 and attaching the fastening part 22. Also, the connecting intermediate part 211 has a width longer than the width of the surface (GRS in FIG. 3) orthogonal to the line side surface in the straight part of the conducting line. Preferably, the connecting intermediate part 211 has a width substantially the same as the thickness of the surface orthogonal to the line side surface in the straight part of the conducting line.

[0064] The connecting essential part 212 is the part that is connected to the induction device by winding the connecting medium through it. In the present embodiment, the connecting essential part 212 has the same length as the interval between the two through holes 13 that the first fixing surface 11 has.

[0065] Regarding the fastening part 22, the first fastening auxiliary tool 23, and the second fastening auxiliary tool 24, since they have the same configuration as in Embodiment 1, the description thereof is omitted.

[0066] FIG. 6 is a diagram showing an example of the size of the laying auxiliary tool 0 in the present embodiment. FIG. 6(a) is a plan view of the first fixing surface 11 provided with predetermined holes, showing the size of the first fixing surface 11. In the illustrated example, the first fixing surface 11 has a thickness of 3.2 mm (not shown), a lateral width of 1117 mm, and a longitudinal width of 50 mm. Here, the lateral direction on the first fixing surface 11 is a direction substantially perpendicular to the extension direction of the electric cable.

[0067] FIG. 6(b) is a plan view of the connecting part main body 21, showing the size of the connecting part main body 21. In the connecting essential part 212 in the present embodiment, no screwing part is provided. Thereby, the friction due to the connecting medium wound through the connecting part main body 21 and the screwing part can be reduced, and the consumption of the connecting medium can be alleviated.

[0068] Note that the size of the laying auxiliary tool 0 is not limited to the above size, and can be suitably changed according to the standard of the conducting line and the like.

[0069] <2.2. Usage example of the laying auxiliary tool of Embodiment 2> Hereinafter, with reference to FIG. 7, a usage example of the laying auxiliary tool 0 in the present embodiment will be described.

[0070] Figure 7(a) is a plan view showing the positional relationship among a laying aid 0, a connecting medium LM, a conducting path GR, an induction device GA, and an electric cable CA when the electric cable is laid at a bent portion of the conducting path. In the illustrated example, the laying aid 0 is abutted from the outside of the side surface of the path in the straight portion of the conducting path. The connecting portion 2 is connected to the induction device GA via the connecting medium LM. The electric cable CA extends along the pulley portion of the induction device GA.

[0071] Figure 7(b) is a perspective view of the laying aid 0 abutted against the side surface of the path in the straight portion of the conducting path. In the present embodiment, in order to support the force applied when extending the electric cable CA on the side surface of the path, it is arranged at a position where the straight portion of the conducting path is sandwiched by the first fixing portion 11 and the connecting essential portion 212.

[0072] Further, the connecting intermediate portion 211 is perforated at a position where a predetermined gap through which the connecting medium LM can be wound is formed between the side surface of the path and the connecting essential portion 212 when the first fixing surface 11 is abutted against the side surface of the straight portion of the conducting path.

Explanation of Reference Numerals

[0073] 0 Laying aid 1 Fixing portion 11 First fixing surface 12 Second fixing surface 13 Through hole 2 Connecting portion 21 Connecting portion main body 22 Fastening portion 23 First fastening aid 24 Second fastening aid 211 Connecting intermediate portion 212 Connecting essential portion

Claims

1. A laying aid for assisting in the operation of laying a cable on a conductor path, wherein the laying aid includes a fixing portion 1 fixed to the conductor path and a connecting portion 2 connected to an induction device for guiding the cable, the conductor path has a path side surface with a predetermined thickness, the fixing portion 1 has a first fixing surface 11 that abuts from the outside of the path side surface at the outside of the bend of the conductor path to fix to the conductor path and has substantially the same thickness as the path side surface, and a second fixing surface 12 orthogonal to the first fixing surface 11, the second fixing surface 12 has a through hole 13, the through hole 13 is drilled at a position where the outside of the bend of the conductor path is sandwiched by the first fixing surface 11 and the connecting portion 2 to fix the induction device in a fixed position. Laying aid.

2. A laying aid for assisting in the operation of laying a cable on a conductor path, wherein the laying aid includes a fixing portion 1 fixed to the conductor path and a connecting portion 2 connected to an induction device for guiding the cable, the conductor path has a path side surface with a predetermined thickness, the fixing portion 1 has a first fixing surface 11 that abuts from the outside of the path side surface at the outside of the bend of the conductor path to fix to the conductor path and has substantially the same thickness as the path side surface, and a second fixing surface 12 orthogonal to the first fixing surface 11, the second fixing surface 12 has a through hole 13 for inserting the connecting portion 2, the through hole 13 is drilled at a position where the outside of the bend of the conductor path is sandwiched by the first fixing surface 11 and the connecting portion 2 to receive the force applied when bending the cable by the path side surface. Laying aid.

3. The connecting portion 2 is configured to be detachable through the through hole 13 The laying aid according to Claim 1 or 2.

4. When the through hole 13 abuts the first fixing surface 11 against the path side surface, a predetermined gap is formed between the path side surface and the connecting portion 2 inserted through the through hole 13, through which a connecting medium for propagating the force applied when bending the cable to the connecting portion 2 can be wound through. The through hole 13 is drilled at this position. The laying aid according to Claim 1.

5. The through hole 13 is drilled on a straight line connecting the center of curvature of the cable laid at the bend of the conductor path and the center point of the bend to equally divide the force applied when bending the cable. The laying aid according to Claim 1.

6. The laying aid further includes a fastening portion 22, a first fastening aid 23, and a second fastening aid 24. The connecting portion 2 is engaged with the fixing portion 1 by using the fastening portion 22, the first fastening aid 23, and the second fastening aid 24. The laying aid according to claim 3.

7. A cable laying method using a laying aid including a fixing portion 1 fixed to a wire path where a cable is laid and a connecting portion 2 connected to an induction device for guiding the cable, a step of abutting the fixing portion 1 against the outside of the side surface of the wire path from the outside of the side surface of the wire path at the bent outside of the wire path; a step of inserting the connecting portion 2 through a through hole 13 provided in a surface orthogonal to the surface of the fixing portion 1 abutting on the side surface of the wire path; a step of winding a connecting medium for connecting the connecting portion 2 and the induction device around the connecting portion 2; a step of laying the cable using the induction device; A cable laying method including the above steps.

Images