JPS5931902A - Optical interior wiring accessory - Google Patents

Abstract

PURPOSE:To prevent the application of a strain greater than a permissible strain to an optical interior wire sheathed with a pipe and to prevent the breaking of a bending part by forming circumferential grooves in the pipe at specific axial pitch and inhibiting the pipe from bending to below a specific radius of curvature. CONSTITUTION:The pipe A uses a cylindrical pipe made of synthetic resin such as polyethylene for containing the optical interior wire. Grooves 4 are formed circumferentially in the outside surface of the wall part and a cut 5 is formed axially in the wall part; a recessed part 5c (coupling part) is formed in one end surface 5a of the cut 5 and a projection part 5d (coupling part) to be fitted in the recessed part 5c is formed in the other end surface 5b. Further, axial grooves 6 and 6' are formed in the outside surface of the wall part. In this case, the grooves 4 are formed at specific intervals in the axial direction of the pipe A. Then, the bottom wall part 7 of each groove 4 is much thinner than the groove 4 is deeper for free inflection.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a wiring tool used when distributing optical extension lines within a house.

In general, in order to wire optical extension lines inside the house,
A: There are many bends in the corners of walls, pillars, etc.

If the optical extension wire is bent and fixed, the original fiber housed in the width will not stay in place for a long time. In this case, the smaller the bending radius, the greater the strain, and the optical fiber will break in a short period of time. Therefore, it is desirable that the bending radius when bending the TE indoor wire be as large as possible in terms of long-term reliability. - 10,000, bending diameter resistance If the tension is too large, the optical extension wires will hang up from the paulownia wood or pillars, and when cleaning, etc., the optical extension wires will be hung one by one and cut. Not only do breakage accidents occur frequently, they become damaged, and the aesthetic appearance is also significantly affected.
! It will be ti. Therefore, the artificial destruction 1 tyr.
To prevent accidents and maintain aesthetics, the bending radius must be as small as possible.

For the above reasons, when bending into an optical extension wire, there are certain conditions such as not damaging the fibers and bezel, etc.). Wiring parts that can be bent at a bending radius are required.

Examples of conventional wiring parts for optical gate signs are shown in Figures 1 and 712. □The first FAc is an outline of the wiring parts used when bending within the same plane with a fixed bending radius. FIG. 2 is a schematic diagram of a fitting part used in the case of bending a light indoors at a circular bending angle of a wall. In the figure, the grip part-2 that grips the l&go light indoor iM
is the fixing part that fixes the wiring #11 to the wall.

By the way, since the IJ parts with such a layout are made in a shape typical of the location where the optical indicator wire is bent, it is difficult to convert it to other curved shapes. Ta. If there is a slight protrusion on the cypress or the like to which the fixed part 2 is attached, and the shape of the part where the optical layer inner wire is bent is even slightly changed, it is often difficult to apply the method.

In addition, in order to overcome the above-mentioned disadvantages + WI, when parts are made to match the shapes of various bending locations, the number of wiring m parts increases, resulting in a drawback that the workability during wiring becomes poor.

Further, FIG. 3 is a diagram showing an example in which optical extension lines are wired in a complex curved shape. In this figure, 8 is an optical extension line. As shown in this figure, when the optical inner #11 is arranged, there are parts that are slightly different in shape, size, etc. due to bends, and the h
It's safe to say that it would be almost impossible to support Q) with 5 products because the number of parts would be large.

The present invention is based on the above-mentioned small t? Its purpose is to prevent optical fibers from breaking.It can be used on curved parts of various shapes and can be installed efficiently. An object of the present invention is to provide an unprecedented optical extension wiring fitting.

Hereinafter, the implementation sequence of the present invention will be explained with reference to the drawings.

Figures ψ to 9 are views showing the 4f4 section of the wiring pipe A, which is an optical internal wiring fitting according to the present invention (the invention of 11). The pipe A is made of synthetic resin such as polyethylene and houses the optical extension wire 8 inside. A cut 5 is formed along the axial direction in the same wall part, and an end face 5 of the moving surfaces 5a and 5b of the cut 5 part of the same wall part is formed.
A recess 5c (joint part) is formed on one end surface 5b.
A convex b5d (joint portion) that fits into the wall portion C is formed at a thickness of 2 tn%, and axial grooves 6 and 6' are formed on the outer surface side of the same wall portion. In this case, the upper groove 4 is formed at the same constant spacing a in the axial direction of the pipe A. The bottom wall part 7 existing at the bottom of each groove has a thickness of t so that it can bend freely.
It is sufficiently thinner than the depth of L4.

G+: to use this pipe A is 2 cut as shown in Fig. 9. With the 1:15 gi branch expanded, put this pipe 8 over the optical indicator wire, and fit it into the convex FA5 drr: concave part 5C. The end faces 5a and 5b are used by tying them together. When such a pipe A is bent, as shown in FIG. The maximum 9 is 1 for the center of the optical extension wire 8. Here, as shown in Fig. 6 and Fig. ,
1 i C, the outer diameter of the indoor wire of 4 is 2
Assuming r, the following equation holds true for the opening of 7 with the small bending radius.

Therefore, a, b, c, b of the pipe,
If l is appropriately selected Tn, the optical inner wire (outer diameter, zr) 8 accommodated therein cannot be bent beyond the minimum bending radius 1 (,) determined by the above equation.

In this way, in the above pipe A, if l:n, e.g. Since there is no 11+l slip, the wiring inside the house is connected to the indoor line 1171.
The optical fiber is damaged even if it is released for the first time.
You can avoid it. For gentle bending with a bending radius greater than the ratio, the bottom 7 of ll4 bends and can be freely bent in any direction, resulting in an irregularly shaped bend as shown in Figure 43. LtJ can be easily applied to the department.

Zara &: Since the shape of the pipe in the 1-axis direction is the same shape, there is a bend in Ifli's P! The n"E pipe A, which has the advantage of being able to be cut to the required length to suit your needs, can be cut vertically in the axial direction, so it can be displayed on the optical extension line after the optical extension line has been installed. By determining the bending radius, there is no need to pass pipes into the light pipe according to the number and length of the bends in the installation NRF, and the workability is also advantageous.

Although the figure shows the case where i/number of fiber optic cables are accommodated, similar advantages can generally be obtained even when a plurality of fiber optic indoor lines are accommodated.

In addition, Fig. 10 shows the case where the above pipe A is used as a field umbrella.
It is a T diagram showing a connecting ring B that connects these pipes. The new ring B has an inner diameter that allows the pipe A to be inserted into it.
21-shaped body, with a sulin in the axial direction on its wall)
10 is formed 2rn% inside TMC via'A groove 4 of the same wall part
, 6, is'clft+sitijru convex Fits
11 is currently being formed. This October, 1 filtration (B is the same as pipe A and 1 filtration (B lrk of polyethylene, etc.)
+ (it I+tt 1!: Therefore, it was created.

Is this connecting ring B 11" and Ikei's vibe A? r: Connection?
Then, with the ends 1n1 of the pipes A of the connector base 2X touching each other, connect I'? between the ends of each pipe.
Cover Y+-term B-Convex Pt1s of ring 13 to this treatment 1
1 are formed in the end of each pipe 4, 6. (
It makes a linear combination with S'.

If the force is 1, then the pipes A and r of ((U() are bound and the ring N<to
, Ko's invention) is the #1 inn, ba, Mitsutouchi Haya's long curved capital?
A groove is provided on the outer surface of the wall (R).Although the groove is provided on the inner surface of the wall, the same effect can be obtained.

1st/Picture or view 4/ψPicture number inside +ro 1l
FIG. 3 is a diagram showing an example in which lil is provided with d4.

In this case, the pipe cannot be bent to a bending radius F defined by the following equation.

In addition, for the contact ring of such a pipe with a groove formed on the inner wall, the outer diameter of the connecting ring should be the diameter that can be inserted into the pipe, and the outer diameter of the connecting ring should be the same as the groove of the pipe. It is sufficient to provide a convex portion.

As is clear from the above explanation, +387 of the present invention
According to the invention, a groove is provided in the circumferential direction of the pipe, and this groove is arranged in the axial direction with a predetermined pinch so that the pipe does not bend beyond the bending radius of ->1. It is possible to prevent the bent part of the light range extension line from breaking even if the light range extension line accommodated therein is not subjected to any strain exceeding the allowable strain by 7JD, and is kept inside the house during the bending period of the light range extension line. Also, since the pipe can be bent into any shape,
There is a great advantage in that it can also be used in cases where the optical range line is roughly bent. In addition, the length of the pipe can be adjusted according to the length of the curved part of the light pipe. 'I work can be carried out with high efficiency.Unfortunately, it is not necessary to vertically divide the pipe in the axial direction, so even after installing the optical interior 4, it is possible to cover the optical interior A4 with a minimum There is an advantage that the bending radius can be defined.!I = ta, n is 1g) According to the second invention, by making the pipe ra HHq, there is an advantage that the long curved part of the optical 1-d extension line can be maintained. There is an O

[Brief explanation of drawings]

Figure 1, Part 2 (2) is Izun, and also the inner keyaki yoke for his light.
+ Perspective view of J parts, 'QX 3 figure is f'
The state where the EJ pheasant curved shape is installed in the place where it is installed, (1
BoT1 sentence 1, ri) Da I3+lJ or 1st O meat are diagrams showing an example of the actual Mlj of the present invention, yA1 diagram is a perspective view of the main part of the wiring width vibrator, and the third sentence is a front view of the same pipe. Fig. 4 shows the main part of the same pipe on the side 11Jr rm.
Fig. 4 shows the position 1α relationship of each part when the pipe is bent, and Fig. 9 shows the same pipe enlarged at the cut part. The open state (IH bottom perspective view - 10th figure and perspective view of the connection ring, Figures 1 to 1 are other embodiments of the present invention); ＾d book-l A hemostasis diagram of #4 pipe, the first picture number is the (ii) + h side view of the same pipe, and Figure 13 is a cross-sectional view of the same pipe in a bent state. , Figure 1II shows the same pipe ?each 15i when bent.
It is a theoretical UJJ diagram showing the iQ-order M relationship. A...Pipe, 1"...Glue, 8
...Inner structure for light, 4...1, 5...
...cut, 5a15b...river/blood, 5c...
L! if Jh> (joint part), 5d...--Convex V
rh (joint part), 6...i?i? Outgoing line [4 people E (AltT, I M1υ story public company Figure 1 Figure 2 Figure 6 C Figure 7 1j Figure 8 Figure 11 Figure 12 Figure 7

Claims (1)

[Scope of Claims] l Inner g11&: A cylindrical pipe that accommodates f-/a number of former indoor doors, with grooves on the inner surface of the plate part or on the outer surface circumferentially. At the same time as the forming process 1), cuts are formed along the axial direction on the same wall part of the serving plate n2 at the same predetermined intervals in the axial direction, and the end faces of this cut piece are tied together. A light indoor wiring fixture consisting of pipes that have been formed by Zelukyu Fengjima. 2 Inner b&: A cylindrical pipe that accommodates one or four light pipes, and the inner surface of the wall has a circumference of one circle.
Grooves are formed on the outer surface of the cylindrical surface, and grooves are formed at predetermined intervals in the axial direction A81, and cuts are formed along the axial direction in the axial direction. A connection v6 is formed to connect the end faces of the pipes +=S, and these pipes are connected to each other by f, < a moat, and the inner diameter C that can be installed inside the pipe is the above. Inside the outer diameter groove that can be inserted into the pipe [0! An optical extension wire duck paste tool comprising a connecting ring and a furnace tool, each having a convex portion formed on the outer surface of the T-shaped groove to fit into the groove.