Wiring fixture

Abstract

To provide a wiring fixture that reduces friction resistance (friction force) between a wiring structure and a wiring member, thereby enabling smooth movement of the wiring member along the wiring structure and improving the ease of installation of the wiring member relative to the wiring structure.SOLUTION: A wiring fixture includes a fixture body 2 that extends continuously from a base end 2a to a tip end 2b and can be moved along a pre-set wiring structure (Kale Black 8), and a friction resistance reduction mechanism 5 that reduces the friction resistance acting between the wiring structure and the fixture body when moving the fixture body along the wiring structure.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] Embodiments of the present invention relate to a wiring jig.

Background Art

[0002] Conventionally, in order to construct various communication systems including disaster prevention systems against human disasters and natural disasters, for example, wiring structures (such as cable racks, pipes, and other wiring areas) provided in basements, under floors, in ceiling spaces, and in concealed parts inside walls are used. Techniques for arranging various wiring members (such as call wires, communication cables, and optical fiber cables) are applied.

[0003] As an example of this arrangement technique, there are methods such as directly arranging a cable in a wiring structure, and a method of pulling a call wire that has been passed through a wiring structure in advance to arrange a cable connected to the end of the call wire in the wiring structure.

[0004] In any method, when arranging wiring members in a wiring structure, the wiring members such as cables and call wires are manually pushed along the wiring structure by an operator and moved to a preset position.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] By the way, when arranging a wiring member in a wiring structure, frictional resistance (frictional force) acts between the wiring structure and the wiring member. Depending on the magnitude of the frictional resistance (frictional force), there is a risk that the wiring member may buckle or bend, and it may not be possible to smoothly move the wiring member along the wiring structure.

[0007] Furthermore, in the wiring structure, there may be wiring members that have already been arranged. Depending on the quantity and arrangement state of the existing wiring members, the movement of the wiring members to be newly arranged may be obstructed or blocked, which may reduce the workability of arranging the wiring members with respect to the wiring structure.

[0008] Therefore, an object of the present invention is to provide a wiring jig capable of smoothly moving a wiring member along a wiring structure by reducing the frictional resistance (frictional force) acting between the wiring structure and the wiring member, thereby improving the workability of arranging the wiring member with respect to the wiring structure.

Means for Solving the Problems

[0009] According to an embodiment, it includes a jig body that continuously extends from the base end to the tip end and can be moved along a preset wiring structure, and a frictional resistance reduction mechanism that reduces the frictional resistance acting between the wiring structure and the jig body when moving the jig body along the wiring structure.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Embodiments for Carrying Out the Invention

[0011] "One Embodiment" FIG. 1 is an overall configuration diagram of the wiring jig 1 according to this embodiment. In the example of FIG. 1, the wiring jig 1 includes a jig body 2, a tip connection member 3, a base end connection member 4, and a friction resistance reduction mechanism 5.

[0012] As shown in FIG. 1, the jig body 2 is a single structure continuously extending from the base end 2a to the tip end 2b, and is configured to have a preset overall length. Since the overall length of the jig body 2 is arbitrarily set according to the usage environment and application of the wiring jig 1, it is not particularly limited here.

[0013] When the jig body 2 is moved along a predetermined wiring structure (for example, a cable rack, a pipe, or other wiring possible areas), it has a rigidity that can always maintain a certain contour shape. In the example of FIG. 1, the movement of the jig body 2 is performed with its tip end 2b facing (preceding) in the moving direction.

[0014] As the material of the jig body 2 that can exhibit rigidity capable of maintaining a certain contour shape during this movement, for example, both a highly rigid material such as a metal that is difficult to deform, or a low-rigid material such as deformable glass fiber or synthetic resin can be applied.

[0015] In FIG. 1, as an example of the contour shape of the jig body 2, a straight and continuously extending contour shape is assumed, but it is not limited to this. If the usage environment and application of the wiring jig 1 are curved, the jig body 2 may be configured in a pre-curved contour shape accordingly.

[0016] Here, it is also assumed that the above wiring structure is set with a mixture of a straight state and a bent state. In this case, it is preferable to apply a material with low rigidity such as deformable glass fiber or synthetic resin for the jig body 2. At this time, the jig body 2 is configured to be elastically deformable in response to an external force. Thereby, when moving the jig body 2 along a wiring structure in which a straight state and a bent state are mixed, the jig body 2 elastically deforms smoothly according to the bent state of the wiring structure. As a result, it becomes possible to smoothly move the jig body 2 along the wiring structure.

[0017] The tip connection member 3 is removably connected to the tip 2b of the jig body 2. As this connection method, for example, existing methods such as screwing, press-fitting, or screwing the tip connection member 3 to the tip 2b of the jig body 2 can be applied.

[0018] In the example of FIG. 1, the tip connection member 3 is removably screwed to the tip 2b of the jig body 2. In this connection method by screwing, a male screw portion 3m is formed on the outer periphery of the tip connection member 3, and a female screw portion 2f is formed on the inner periphery of the tip 2b of the jig body 2. The effective diameters and pitches of both screw portions 3m and 2f are set to be the same as each other while ensuring an optimal play (gap). Thereby, it becomes possible to smoothly screw and remove the screw portions 3m and 2f from each other.

[0019] Furthermore, the tip connection member 3 includes a guide portion 3g. The guide portion 3g has a tapered shape toward the moving direction of the jig body 2. Thereby, when moving the jig body 2 along the wiring structure, the jig body 2 is guided in a certain direction by the guide portion 3g. As a result, the jig body 2 provided with the guide portion 3g at the tip 2b can be stably moved along the wiring structure.

[0020] Furthermore, the guide portion 3g has a shock absorption function. To achieve the shock absorption function, the guide portion 3g is made of an elastically deformable material. In this case, considering the usage environment and applications of the wiring jig 1, it is preferable that the shock absorption function of the guide portion 3g has shock absorption characteristics while maintaining impact resistance. As an example of the guide portion 3g, rubber or the like can be applied. Thereby, when moving the jig body 2 along the wiring structure, the external force applied to the tip 2b of the jig body 2 is absorbed and removed by the guide portion 3g and does not act on the jig body 2. As a result, it is possible to prevent the occurrence of problems such as damage to the jig body 2 caused by the external force applied during movement.

[0021] The base end connection member 4 is removably connected to the base end 2a of the jig body 2. As this connection method, for example, existing methods such as screwing, press-fitting, or screwing the base end connection member 4 to the base end 2a of the jig body 2 can be applied.

[0022] In the example of FIG. 1, the base end connection member 4 is removably screwed to the base end 2a of the jig body 2. In this connection method by screwing, an external thread portion 2m is formed on the outer periphery of the base end 2a of the jig body 2, and an internal thread portion 4f is formed on the inner periphery of the base end connection member 4. The effective diameters and pitches of both thread portions 2m and 4f are set to be the same as each other while ensuring an optimal play (gap). Thereby, it becomes possible to smoothly screw and remove the thread portions 2m and 4f from each other.

[0023] Furthermore, the base end connection member 4 includes an attachment portion 4t. The attachment portion 4t has a hollow ring shape. Thereby, a wiring member (for example, a calling wire, a communication cable, an optical fiber cable) arranged along the wiring structure can be removably attached to the attachment portion 4t. As a result, the jig body 2 provided with the attachment portion 4t at the base end 2a can move without dropping the wiring member and can surely arrange the wiring member along the wiring structure.

[0024] Furthermore, the mounting portion 4t has a rewinding function. To realize the rewinding function, the mounting portion 4t is configured to be freely rotatable. As a result, the wiring member attached to the mounting portion 4t is untwisted and bent when the mounting portion 4t rotates freely, and these problems are eliminated. As a result, when the jig body 2 is moved along the wiring structure, the wiring member can always be maintained in a constant form or posture.

[0025] The friction resistance reduction mechanism 5 is configured to reduce the frictional resistance (frictional force) acting between the wiring structure and the jig body 2 when the jig body 2 is moved along the wiring structure. The friction resistance reduction mechanism 5 is provided at a plurality of preset installation locations between the distal end 2b and the proximal end 2a of the jig body 2.

[0026] The plurality of preset installation locations include, for example, both a variation in which the friction resistance reduction mechanism 5 is provided randomly and a variation in which the friction resistance reduction mechanism 5 is provided at equal intervals. In FIG. 1, as an example of the plurality of installation locations, the friction resistance reduction mechanism 5 is provided at equal intervals between the distal end 2b and the proximal end 2a of the jig body 2.

[0027] Furthermore, as a method of reducing the frictional resistance (frictional force), the friction resistance reduction mechanism 5 is applied with a structure that reduces the contact area between the jig body 2 and the wiring structure. The friction resistance reduction mechanism 5 for realizing this structure includes both rotating members and non-rotating members.

[0028] As the rotating members, for example, rotating members including rolling elements such as balls and rollers can be applied. On the other hand, as the non-rotating members, for example, arc-shaped sliding members having a smooth surface can be applied. In both the rotating / non-rotating members, the friction resistance reduction mechanism 5 is configured to make point contact with the wiring structure.

[0029] In FIG. 1, as an example of point contact, at the plurality of installation locations described above, the friction resistance reduction mechanism 5 has a plurality of rotating members 6 (that is, balls) rotatably provided on the jig body 2. The plurality of rotating members 6 are arranged at equal intervals along the circumferential direction of the jig body 2.

[0030] A part of the plurality of rotating members 6 is configured to be rotatable in a state of protruding from the jig body 2. In all the rotating members 6 provided on the jig body 2, the protruding amount Pt from the jig body 2 is set to be the same for each other.

[0031] Although not particularly shown, even when a non-rotating friction resistance reduction mechanism 5 is applied, an arc-shaped sliding member having a smooth surface may be set to the same contour shape as the rotating member 6 described above.

[0032] FIG. 2 is a connection configuration diagram of the jig bodies 2. In the example of FIG. 2, a configuration for connecting two jig bodies 2 to each other is shown. That is, the tip 2b of one jig body 2 is removably connected to the base end 2a of the other jig body 2.

[0033] As shown in FIG. 2, the male screw portion 2m at the base end 2a of the jig body 2 and the female screw portion 2f at the tip 2b of the jig body 2 are set to be the same as each other while ensuring an optimal play (gap) in terms of their effective diameter and pitch.

[0034] Thereby, it becomes possible to smoothly screw together or remove the male screw portion 2m at the base end 2a of one jig body 2 and the female screw portion 2f at the tip 2b of the other jig body 2. As a result, depending on the usage environment and application of the wiring jig 1, by connecting a plurality of jig bodies 2, it becomes possible to extend the entire wiring jig 1.

[0035] FIG. 3 is a cross-sectional view configuration diagram of the jig body 2 and the friction resistance reduction mechanism 5. In the example of FIG. 3, the jig body 2 has a hollow cylindrical shape and has the same diameter Dm over its entire length (that is, from the tip 2b to the base end 2a).

[0036] 3, four rotating members 6 arranged at equal intervals along the circumferential direction are rotatably provided on a hollow cylindrical jig body 2. A frictional resistance reduction mechanism 5 having these four rotating members 6 is provided between a tip end 2b and a base end 2a of the jig body 2 at equal intervals from one another.

[0037] In each of the frictional resistance reduction mechanisms 5, the four rotating members 6 protruding from the hollow cylindrical jig body 2 are concentrically arranged along the circumferential direction at a constant protruding amount Pt. This allows the jig body 2 to be stably moved along the wiring structure without rattling due to the rotation of each rotating member 6 in point contact with the wiring structure when the jig body 2 is moved along the wiring structure.

[0038] Furthermore, the hollow cylindrical jig body 2 is lightweight, and the synergistic effect with the rotation of each rotating member 6 allows the jig body 2 to be moved smoothly along the wiring structure.

[0039] Fig. 4 is a diagram showing the process of installing the above-mentioned wiring members (for example, a call line, a communication cable, an optical fiber cable). In the example of Fig. 4, a construction method is assumed in which a call line that has been passed through a wiring structure in advance is pulled, and a cable tied to the end of the call line is installed in the wiring structure. Hereinafter, the installation process of the wiring members will be described with reference to Figs. 1, 5 to 9 together with Fig. 4.

[0040] As shown in Figures 4 and 1, the distal end connecting member 3 and the proximal end connecting member 4 are connected to the jig body 2 (S1). Next, as shown in Figures 4 and 5(a), the call line 7 is passed through the mounting portion 4t of the proximal end connecting member 4, and then, as shown in Figures 4 and 5(b), the end of the call line 7 is tied to the mounting portion 4t of the proximal end connecting member 4. This causes the call line 7 to be attached to the proximal end connecting member 4 (mounting portion 4t) (S2).

[0041] As shown in FIGS. 4 and 6, the jig body 2 to which the tip connection member 3 and the base end connection member 4 are connected is set at the wiring start position (S3). In the example of FIG. 6, as the wiring structure, it is assumed that there is a cable rack 8 laid in the concealed part inside the wall. Then, the position on the cable rack 8 facing one of the inspection ports 9 provided in plurality on the wall of the concealed part is taken as the wiring start position. The cable rack 8 is configured such that a plurality of sub-beams 8b are interposed between a pair of parent beams 8a, and wiring members can be moved and arranged in a predetermined direction.

[0042] Next, the jig body 2 is moved toward the wiring end position (S4). As a method of moving the jig body 2, for example, by manual operation of an operator, the jig body 2 set at the wiring start position is moved toward the next inspection port 9, and then further moved from the inspection port 9 toward the next inspection port 9. By repeating this procedure, the jig body 2 is moved toward the wiring end position.

[0043] At this time, along with the movement of the jig body 2, the call wire 7 connected to the base end connection part 4 (attachment part 4t) also moves on the cable rack 8 along the same direction. At this time, due to the above-described friction resistance reduction mechanism 5, the friction resistance (frictional force) acting between the cable rack 8 and the jig body 2 is reduced, so that the jig body 2 can be smoothly moved along the cable rack 8.

[0044] As shown in FIGS. 4 and 7, when the jig body 2 reaches the wiring end position (S5), after removing the call wire 7 from the base end connection part 4 (attachment part 4t) (S6), the cable 10 is connected to the end of the call wire 7 (S7).

[0045] FIG. 8 shows a state in which the cable 10 is connected to the end of the call wire 7. In the example of FIG. 8, a part of the electric wire 10a built in the cable 10 is exposed, and the exposed electric wire 10a is connected to the end of the call wire 7.

[0046] As shown in FIGS. 4 and 9, the operator manually pulls the call wire 7 from the inspection port 9 facing the wiring end position to pay out the cable 10 (S8). When the cable 10 has been paid out by the necessary amount (S9), the laying work is completed.

[0047] As described above, according to the present embodiment, by providing the friction resistance reduction mechanism 5 in the jig body 2, when the jig body 2 is moved along the wiring structure, the friction resistance (frictional force) acting between the wiring structure and the jig body 2 can be reduced. In this case, the jig body 2 can be moved smoothly along the wiring structure. As a result, the wiring member attached to the attachment portion 4t of the jig body 2 can also be moved smoothly along the wiring structure. As a result, the workability of laying the wiring member with respect to the wiring structure can be improved.

[0048] According to the present embodiment, the friction resistance reduction mechanism 5 is configured to make point contact with the wiring structure. Thereby, the friction resistance (frictional force) acting between the wiring structure and the friction resistance reduction mechanism 5 can be made as small as possible. As a result, the jig body 2 can be moved smoothly along the wiring structure. In this case, by configuring the jig body 2 in a hollow cylindrical shape, the weight of the jig body 2 can be reduced, and the jig body 2 can be moved more smoothly with respect to the wiring structure.

[0049] According to the present embodiment, the jig body 2 has a hollow cylindrical shape having the same diameter Dm over its entire length, and the rotating members 6 provided at equal intervals along the circumferential direction as the friction resistance reduction mechanism 5 have a constant protruding amount Pt in a concentric shape along the circumferential direction. Thereby, when the jig body 2 is moved along the wiring structure, the rotation of each rotating member 6 that makes point contact with the wiring structure allows the jig body 2 to move smoothly and stably along the wiring structure without rattling.

[0050] According to this embodiment, when the jig body 2 is moved along the wiring structure, it has rigidity capable of always maintaining a constant contour shape. Thereby, the dynamic stability of the jig body 2 can always be maintained constant. As a result, the jig body 2 can be stably moved along the wiring structure.

[0051] According to this embodiment, the jig body 2 can be configured to be elastically deformable while always maintaining a constant contour shape. Thereby, when the jig body 2 is moved along a wiring structure in which a straight state and a bent state are mixed, the jig body 2 elastically deforms smoothly according to the bent state of the wiring structure. As a result, the jig body 2 can be smoothly moved along the wiring structure.

[0052] According to this embodiment, the jig body 2 (tip 2b) is provided with a guide portion 3g having a shock absorbing function that tapers in the moving direction of the jig body 2. Thereby, when the jig body 2 is moved along the wiring structure, the jig body 2 is guided in a certain direction by the guide portion 3g, and at the same time, the external force applied to the tip 2b of the jig body 2 is absorbed and removed by the guide portion 3g and does not act on the jig body 2. As a result, it is possible to prevent the occurrence of problems such as damage to the jig body 2 due to an external force applied during movement.

[0053] According to this embodiment, the jig body 2 (base end 2a) is provided with a mounting portion 4t having a twisting return function that forms a hollow ring shape. Thereby, the wiring member attached to the attachment portion 4t is untwisted and bent by the free rotation of the attachment portion 4t. As a result, when the jig body 2 is moved along the wiring structure, the wiring member can always be maintained in a constant form or posture.

[0054] According to this embodiment, a plurality of jig bodies 2 can be connected according to the use environment and application of the wiring jig 1. Thereby, the entire wiring jig 1 can be extended.

[0055] "Modification Example" In the above-described embodiment, a method is assumed in which the cable 10 connected to the end of the calling wire 7 is arranged in the wiring structure (cable rack 8) by pulling the calling wire 7 that has been previously passed through the wiring structure (cable rack 8). Instead of this, a method of directly arranging the cable 10 in the wiring structure (cable rack 8) can also be applied.

[0056] For example, in the arrangement process of FIGS. 5(a) and 5(b) described above, the tip of the cable 10 is passed through the attachment portion 4t of the base end connection member 4 and connected. Thereafter, in the same manner as in the above-described embodiment, by moving the jig body 2 from the wiring start position toward the wiring end position, the cable 10 can be arranged in the wiring structure (cable rack 8).

[0057] As described above, one embodiment and a modification of the present invention have been described. These embodiments and modifications are presented as examples and are not intended to limit the scope of the invention. These embodiments and modifications can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications are included in the scope and gist of the invention and are included in the invention described in the claims and its equivalent scope.

Explanation of Reference Numerals

[0058] 1... Wiring jig, 2... Jig body, 2a... Base end, 2b... Tip, 2m... Male screw portion, 2f... Female screw portion, 3... Tip connection member, 3m... Male screw portion, 3g... Guide portion, 4... Base end connection member, 4f... Female screw portion, 4t... Attachment portion, 5... Friction resistance reduction mechanism, 6... Rotating member, 7... Calling wire, 8... Cable rack, 9... Inspection port, 10... Cable, Pt... Projection amount, Dm... Diameter.

Claims

1. A jig body that continuously extends from the base end to the tip end and can be moved along a preset wiring structure, and A wiring jig comprising a friction resistance reduction mechanism that reduces the frictional resistance acting between the wiring structure and the jig body when moving the jig body along the wiring structure.

2. The wiring jig according to claim 1, wherein the friction resistance reduction mechanism is configured to always make point contact with the wiring structure.

3. The friction resistance reduction mechanism is provided at a plurality of preset installation locations between the tip end and the base end of the jig body, At each of the installation locations, the friction resistance reduction mechanism has a plurality of rotatable members rotatably provided on the jig body, The wiring jig according to claim 2, wherein a part of the plurality of rotatable members is configured to be rotatable in a state of protruding from the jig body.

4. The wiring jig according to claim 3, wherein the friction resistance reduction mechanism is provided at equal intervals between the tip end and the base end of the jig body.

5. The jig body has a cylindrical shape with the same diameter from the tip end to the base end, The wiring jig according to claim 3, wherein at each of the installation locations, the plurality of rotatable members are arranged at equal intervals along the circumferential direction of the jig body.

6. The wiring jig according to claim 3, wherein the protrusion amounts from the jig body of all the rotatable members provided on the jig body are set to be the same as each other.

7. A tip connection member removably connected to the tip end of the jig body and capable of guiding the jig body along the wiring structure, and A base end connection member removably connected to the base end of the jig body and capable of attaching a wiring member disposed along the wiring structure, further comprising the wiring jig according to claim 1.

8. The tip connection member includes a guide portion having a shock absorption function, The guide portion has a tapered shape toward the moving direction of the jig body, The base end connection member includes an attachment portion having a twist-back function, The wiring jig according to claim 7, wherein the wiring member is removably attached to the attachment portion.

9. The wiring jig according to claim 1, wherein the jig body has rigidity capable of always maintaining a constant contour shape when moving the jig body along the wiring structure.

10. The wiring jig according to claim 9, wherein the jig body is configured to be elastically deformable in response to an external force when moving the jig body along the wiring structure.

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