JP4734189B2 - Wiring fixture - Google Patents

Description

  The present invention relates to a wiring fixture for fixing an optical cable and a tension member, for example, in an optical termination box.

  Conventionally, for example, in an optical termination box, the cable body of the optical cable and the tension member of the optical cable are each fixed by a dedicated fixing tool. Patent Document 1 discloses a cable fixing tool for fixing the cable body. As a tension member fixing tool for fixing a tension member, there is one disclosed in Patent Document 2.

JP 2001-201640 A JP 2000-266955 A

Here, a conventionally known cable fixture 81 and tension member fixture 82 will be described with reference to FIG. FIG. 8 is an explanatory view showing a conventional example related to fixing of the end of an optical cable.
The optical cable is in a state in which the tension member 84 is pulled out from the cable main body 83 at the end, and the cable main body 83 and the tension member 84 are fixed by a dedicated cable fixing tool 81 and a tension member fixing tool 82, respectively. .

  The cable fixture 81 is configured such that the back plate side of the U-shaped main body 85 can be fixed in the optical termination box, and the cable main body 83 is inserted into a pair of projecting pieces protruding from the back plate. A possible insertion hole 86 is provided. A pressing plate 87 is attached between the pair of projecting pieces to press and fix the cable main body 83 inserted through the main body 85 to the back plate side. Can be fixed / released. On the other hand, the tension member fixture 82 can be fixed so that the back plate side of the U-shaped main body 89 protrudes from the fixing surface, and is attached to a pair of projecting pieces protruding from the back plate of the main body 89. Is formed with an insertion hole 90 through which the tension member 84 can be inserted. The tension member 84 that is inserted through the insertion hole 90 can be fixed / released by tightening the screws 91 and 91 attached to the back plate of the main body 89.

  According to the cable fixture 81 and the tension member fixture 82 as described above, both the fixtures 81 and 82 are installed according to the optical cable entry direction in the optical termination box, and the cable body 83 is attached by the cable fixture 81. The tension members 84 were fixed by the tension member fixtures 84, respectively.

  However, when the conventional cable fixture 81 and the tension member fixture 82 as described above are used, after both the fixtures 81 and 82 are once installed (for example, installed in an optical termination box), the optical cable entry direction When it is desired to change the two, it is necessary to remove both the fixtures 81 and 82 once and re-install them, which is troublesome. In addition, since each of the fixing tools 81 and 82 is a dedicated fixing tool for fixing the cable body 83 or the tension member 84, there are many types of parts for fixing the optical cable, and the management of both the fixing tools 81 and 82 can be performed. There is also a problem that proper use is complicated.

  Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a rational wiring fixture having both a cable body fixing function and a tension member fixing function. .

In order to achieve the above object, the invention described in claim 1 of the present invention comprises a cable body fixing mechanism for fixing a cable body of an optical cable and a tension member fixing mechanism for fixing a tension member of the optical cable. cage, Oite in Mitsunari Tanbako, wherein a wire fixing member for fixing the cable body and the tension member, a body, side face formed integrally provided on the pair of projecting pieces and below the back plate A fixing portion for mounting a fixing member for installing the main body on a fixing surface in a posture in which the protruding piece protrudes forward is provided on both left and right side portions of the back plate. A bulging portion that bulges forward between the upper and lower protrusions and presses and fixes the cable body positioned rearward by attachment to the fixing surface by the fixing member to the fixing surface side. While the cable body fixing mechanism is configured, the pair of projecting pieces are provided with insertion holes through which the tension members can be inserted, and the tension members in the insertion state are pressed into the insertion holes. The tension member fixing mechanism is configured by providing pressing means for fixing the cable body, and the cable main body is disposed at the rear of the bulging portion from above or below the main body in a state of being attached to the fixing surface by the fixing member. The tension member can be fixed to either the cable body or the tension member by inserting the tension member through the insertion hole, and parallel to the cable body by installing a plurality of the tension members along the direction of the optical cable. characterized in that capable of fixing the said tension member in the direction.
According to a second aspect of the present invention , in the first aspect of the invention, a plurality of cable body fixing mechanisms and tension member fixing mechanisms are provided in the left-right direction.

According to the present invention, the wiring fixture is provided with both the cable body fixing mechanism for fixing the cable body and the tension member fixing mechanism capable of fixing the tension member in a direction parallel to the cable body. There is no need to prepare a dedicated fixing tool for each fixing point. Therefore, it is possible to reduce the production cost of the fixture compared to the conventional case, and it becomes easy to manage the fixture, and it is not necessary to use the fixture separately at the fixing location, which is convenient.
In addition, in the state of attachment to the fixed surface, for example, when it is desired to reverse the up and down direction of the incoming line at the end of the optical cable, it can be handled without removing the wiring fixture in the attachment state, and the workability is excellent. Yes. Furthermore, when changing the installation mode of the optical cable, it is possible to fix the optical cable main body at the position where the end of the optical cable (particularly the tension member) is fixed, which is extremely convenient.
Furthermore, when fixing the optical cable, such as presses together thereby enabling a fixed like pressing the cable body by bulging portion that bulges forward, the tension member which is inserted into the insertion hole by pressing means fixed Therefore, it is versatile regardless of the diameter of the cable body or tension member of the optical cable that can be fixed.
In addition, according to the second aspect of the present invention, since a plurality of cable body fixing mechanisms and tension member fixing mechanisms are provided in the left-right direction, the fixing work is very difficult when a plurality of optical cables are to be fixed in parallel. It can be simplified.

  Hereinafter, a wiring fixture according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an explanatory view showing a wiring fixture 1 according to the present invention, where (a) is an explanatory view seen from the front, (b) is an explanatory view seen from the side, and (c) is from below. FIG. FIG. 2 is an explanatory view showing a state in which the end of the optical cable 2 is fixed by the wiring fixtures 1 and 1, and (a) and (b) have different incoming directions of the optical cable 2. FIG. 3 is an explanatory view showing a state in which the cable body 3 of the optical cable 2 is fixed by the wiring fixture 1, and FIG. 4 is an explanation showing a state in which the tension member 4 of the optical cable 2 is fixed by the wiring fixture 1. FIG.

  The wiring fixture 1 has a U-shaped main body 10 formed by integrally projecting a pair of projecting pieces 12 and 12 on the upper and lower sides of a back plate 11, and the back plate 11 is placed in an optical termination box. It attaches in the state contact | abutted to fixed surfaces, such as. An arch-shaped bulging portion 14 that bulges forward is provided at the center of the back plate 11, and the wiring fixture 1 is attached to a fixed surface on both the left and right sides of the bulging portion 14. Fixing holes (fixing portions) 15 and 15 through which a fixing screw (fixing member) 30 (shown in FIG. 3) can be inserted are formed.

In addition, a notch 16 having a shape along the bulging portion 14 is provided at the approximate center of the connecting portion between the projecting pieces 12 and 12 and the back plate 11. The cable body 3 can be passed behind, that is, behind the bulging portion 14.
Further, flanges 13 and 13 projecting outward are provided at the tips of the projecting pieces 12 and 12, respectively. And the connection part of each protrusion 12 and the flange part 13 is provided with the notch part (insertion hole) 17 notched in the shape of an inverted triangle, By inserting the inside of this notch part 17, The tension member 4 can be passed through the front of the bulging portion 14 of the main body 10.

  In addition, a pressing piece 18 projecting forward from the notch 17 is provided at the base end of each flange portion 13 (connecting portion with the protruding piece 12). A holding screw (pressing means) 19 that enters / retreats in the front-rear direction is attached to the holding piece 18, and the shaft tip of the holding screw 19 and a notch are adjusted by adjusting the degree of entry of the holding screw 19. 17 The distance from the front surface can be adjusted, that is, the tension member 4 inserted through the notch 17 can be fixed / released.

  A plurality of wiring fixtures 1 as described above are installed along the incoming direction of the optical cable 2, and the cable body 3 is connected to the tension member 4 by the notches 17, 17 and the holding screws 19, 19 at the bulging portion 14. Can be fixed. Hereinafter, attachment of the wiring fixture 1 and fixation of the cable body 3 and the tension member 4 will be described.

  For example, in the optical termination box or the like, the wiring fixture 1 has the fixing screws 30 and 30 inserted through the fixing holes 15 and 15 with the back plate 11 facing the fixing surface, and each fixing screw 30 is fixed to the fixing surface. Installed by screwing. When the wiring fixture 1 is attached to the fixed surface in this manner, a space 20 through which the cable body 3 can be inserted is formed between the bulging portion 14 and the fixed surface. Therefore, by inserting the cable body 3 into the space 20 and tightening the fixing screws 30, 30, the cable body 3 can be fixed so as to be pressed against the fixed surface by the bulging portion 14 (FIG. 3). To show).

  In addition, the tension member 4 drawn out from the cable body 3 at the end of the optical cable 2 is inserted so as to pass between the notches 17 and 17 of the wiring fixture 1, and the holding screw 19 is tightened to tighten the holding screw 19. And the upper surface of the corner portion of the cutout portion 17 (see FIG. 4).

  According to the wiring fixture 1 as described above, both the cable body fixing mechanism such as the bulging portion 14 and the fixing screw 30 and the tension member fixing mechanism such as the notch portion 17 and the holding screw 19 are provided. For this reason, it is not necessary to prepare a dedicated fixing tool for each fixing portion when the optical cable 2 is fixed. Therefore, it is possible to reduce the production cost of the fixture compared to the conventional case, and it becomes easy to manage the fixture, and it is not necessary to use the fixture separately at the fixing location, which is convenient.

Further, since the cable body 3 and the tension member 4 are inserted into the space 20 formed at the rear of the bulging portion 14 and the notch portion 17 and the like, the cable can be fixed. For example, when it is desired to change the incoming line direction at the end of 2 from the direction as shown in FIG. 2A to the direction as shown in FIG. Excellent in properties.
Furthermore, when the installation mode of the optical cable 2 is changed, it is possible to fix only the cable body 3 of the optical cable 2 as shown in FIG. 5 at the place where the end of the optical cable 2 is fixed as shown in FIG. It is very convenient to use.

Furthermore, when the optical cable 2 is fixed, the cable body 3 is fixed to be pressed by the arch-shaped bulging portion 14, and the tension member 4 pressed by the pressing screw 19 is attached to the inverted triangular cutout portion 17. Therefore, the optical cable 2 can be reliably pressed and fixed.
In addition, since the cable body 3 and the tension member 4 can be fixed / released by adjusting the tightening degree of the fixing screw 30 and the holding screw 19, it can be used for fixing various optical cables having different cable diameters. Rich in versatility.

  The configuration according to the wiring fixture of the present invention is not limited to the aspect of the above embodiment, and the configuration related to the main body, the cable main body fixing mechanism, the tension member fixing mechanism, etc. As long as it does not deviate, it can change suitably as needed.

  For example, a wiring fixture 1a as shown in FIG. 6 may be used. The wiring fixture 1a is formed by integrally connecting the wiring fixtures described in the above-described embodiment on the left and right sides, and includes a plurality of cable body fixing mechanisms and tension member fixing mechanisms. . By adopting this configuration, in addition to the effects exhibited by the wiring fixture described in the above embodiment, when it is desired to fix a plurality of optical cables in parallel, the fixing work of the optical cables can be simplified and fixed in parallel. Since it is not related to the incoming direction of the optical cable (for example, it is possible to cope with the reverse direction as shown in FIG. 6), it is easy to use.

  Moreover, it is also possible to set it as the wiring fixing tool 1b as shown in FIG. The wiring fixture 1b is provided by shifting the cable body fixing mechanism and the tension member fixing mechanism in the wiring fixture described in the above embodiment in the left-right direction by the diameter of approximately one optical cable. When the end of the optical cable 2 is fixed using the wiring fixture 1b, as shown in FIG. 7, one of the wiring fixtures 1b is rotated 180 degrees and attached to the fixing surface, and the one of the wiring fixtures 1b is used. The tension member 4 can be fixed to the cable body 3 by the other wiring fixing tool 1b in the same manner as the wiring fixing tool described in the above embodiment. By using such a wiring fixture 1b, when the incoming direction of the optical cable 2 that has been fixed is reversed, similarly to the wiring fixture described in the above embodiment, the optical cable 2 can be inserted without being removed from the fixing surface. The effects can be achieved such that the direction can be reversed, and the installation work can be facilitated when the optical cables 2 having the reverse incoming direction are installed in parallel.

Furthermore, a cushioning member may be installed on the rear surface of the bulging portion so as not to damage the cable body when the cable body is pressed, and the shape of the bulging portion is formed in a triangular shape protruding forward. There is no problem.
In addition, the tension member is not directly pressed by the tip of the holding screw, but a plate-like pressing member is interposed between the holding screw and the tension member, and the pressing screw presses the pressing member, thereby pressing the tension member. It is also possible to adopt a configuration in which the member presses the tension member.

It is explanatory drawing which showed the wiring fixing tool which concerns on this invention, Comprising: (a) is explanatory drawing seen from the front, (b) is explanatory drawing seen from the side, (c) is explanatory drawing seen from the bottom. is there. It is explanatory drawing which showed the state which fixed the terminal end of the optical cable with the wiring fixing tool, (a) and (b) differ in the incoming direction of an optical cable. It is explanatory drawing which showed the state which fixed the cable main body of the optical cable with the wiring fixing tool. It is explanatory drawing which showed the state which fixed the tension member of the optical cable with the wiring fixing tool. It is explanatory drawing which showed the state which fixed the cable main body with the wiring fixing tool. It is explanatory drawing which showed the example of a change of a wiring fixing tool. It is explanatory drawing which showed another example of a change of a wiring fixing tool. It is explanatory drawing shown about the prior art example regarding fixation of the termination | terminus of an optical cable.

Explanation of symbols

  1 ..Wiring fixing device 2 ..Optical cable 3 ..Cable body 4 ..Tension member 10 ..Main body 11 ..Back plate 12 ..Projection piece 13. Bulging part, 15 .. fixing hole, 16 .. notch, 17 .. notch part, 18 .. holding piece, 19 .. holding screw, 30.

Claims (2)

And a cable body fixing mechanism for fixing the cable body of the optical cable has a tension member fixing mechanism for fixing the tension member of the optical cable, securing fraud and mitigating risk the cable body and the tension member within Mitsunari Tanbako A wiring fixture for
The main body is formed into a U-shape formed by integrally providing a pair of projecting pieces on the upper and lower sides of the back plate, and the main body is placed in a posture in which the projecting pieces protrude forward on the left and right sides of the back plate. A fixing portion for attaching a fixing member to be installed on the fixing surface is provided, and bulges forward between the fixing portions and between the upper and lower protruding pieces, and rearward by attachment to the fixing surface by the fixing member. While the cable body fixing mechanism is configured by providing a bulging portion for pressing and fixing the positioned cable body to the fixing surface side,
The tension member fixing mechanism is formed by forming a through hole through which the tension member can be inserted in the pair of projecting pieces, and providing a pressing means for pressing and fixing the tension member in the inserted state through the insertion hole. Configured,
In the state of attachment to the fixing surface by the fixing member, the cable body is inserted from the upper side or the lower side of the main body to the rear of the bulging portion, and the tension member is inserted through the insertion hole, whereby the cable main body or the Either one of the tension members can be fixed,
Multiple by installation to wiring fixture, characterized in that capable of fixing the said tension member to said cable body and parallel along the incoming line direction of the optical cable. The wiring fixture according to claim 1 , comprising a plurality of cable body fixing mechanisms and tension member fixing mechanisms in the left-right direction.

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