TW387059B - Metal tube clad optical fiber cable - Google Patents

Abstract

A connector for connecting an optical fiber cable to an equipment adaptor, a flexible metal tube clad optical fiber cable including a flexible metal tube through which an optical fiber core rod extends and which is used for connection with an equipment, a relay adaptor for providing a connection between cables of different kinds, and a seamless metal tube clad optical fiber cable including a seamless tube through which an optical fiber core rod extends and which is used for wiring over a relatively long distance are disclosed individually and in combinations. The connector is connected to the flexible metal tube clad optical fiber cable, which is then connected through the relay adaptor to the seamless metal tube clad optical fiber cable. A certain element of the connector is formed of an insulator to provide an electrical isolation between the metal tube and the equipment adaptor.

Description

A 6 η 6 V. Description of the invention (1 ·) The present invention relates to an optical fiber cable through which an optical fiber core wire passes through a metal tube, and particularly to a metal having an end portion for connecting the cable to another optical fiber cable or an optical communication device connector Tubes are coated with fiber optic cables. [Conventional technology] Optical communication cables that have been widely used in recent years are more resistant to electromagnetic noise and have a single core with a larger average transmission capacity than conventional wire communication cables. Signal obstacles such as beating cables that are in active state such as beating cables. Commercially available fiber optic cables with these advantages can be roughly divided into two types. One is a polymer core coated optical fiber cable with a thin resin coating once coated with a core made of quartz or plastic and a metal cladding to form a baseline, and a polymer coated secondary polymer with an organic system polymer, as disclosed in Japanese Patent Application Laid-Open No. 58_142308 and Japanese Patent Application Laid-Open No. 60-263104. The other is to use a metal tube instead of the secondary coating of the polymer of the organic system, and cover the optical fiber cable by passing the aforementioned core wire through the metal tube of the metal tube. The Ministry of Economic Affairs + Central Bureau of Standards, Industrial and Industrial Cooperation, Duyin Optical Fiber Cable has a connector to connect it to a communication device. This connector has a certain specification (for example: jIS C5973 "F04 single-core fiber optic connector. "). Fig. 24a shows a polymer-clad optical fiber cable having such a connector, and Fig. 24b shows an enlarged section thereof. In addition, Fig. 24b shows a cut surface of the connector shown in Fig. 24a at a plane parallel to the paper axis including the central axis of the optical fiber cable 19. The optical fiber baseline 9 of the optical fiber cable 19 passes through the ferrule 12 and is fixed to the ferrule 12. The thread 10 containing the primary covering baseline 9 was also fixed to the collar. . The collar 12 penetrates the center hole of the inner flange ne of the plug frame Π, and the outer flange 12a of the collar 12 touches the inner flange lie, preventing the collar 12 from moving to the right side of the paper rule Λ.楳 iMCNS) T4 gauge (2) 0x297 male; 12) Λ (i Η 6 5. Description of the invention (2.). The inner flange lie of the plug frame 11 is located at the front end (the right end of the illustration> the opening and the rear end (Figure (Left side shown) is slightly in the middle of the opening. The rear end opens into the front end of the retaining ring 7, and the compression coil spring 14 pushed by the front end pushes the sleeve 12 to the right, so the outer flange 12a of the collar 12 is pushed to The inner flange 11 e often imparts a right-side rebound force to the collar 12. A pair of half-moon-shaped protrusions are formed on the outer peripheral surface of the retaining ring 7 by making grooves cut in parallel with each other to be attached to the outer peripheral shaft of the cylinder. 7a and 7b respectively enter the slit-shaped holes 11a and 11b of the plug frame 11. Therefore, the stop ring 7 and the plug frame 11 are integrated into one. The outer peripheral surface of the rear end portion of the stop ring 7 is engaged with the inner peripheral surface of the riveting ring 22. The small diameter rear end of the riveting ring 22, and the secondary pressure ring 21 fasten and fix the outer jacket 19a of the optical fiber cable 19. The riveting ring 22 and the dust ring 21 and the outer jacket of the optical fiber cable The ends are covered with a rubber cover 20. The synthetic resin handles 15 cover the rubber cover 20 and the side peripheral surfaces of the plug frame 11. The protrusions 11f and 11g of the plug frame 11 enter the holes of the handle 15, so The hand 15 is integrated with the plug frame. Generally speaking, the material of the rubber cover 22 is synthetic rubber, the pressure ring 21 is stainless steel or brass, the riveting ring 22 is aluminum, the retaining ring 7 is brass, and the coil spring 14 Steel or non-recorded steel. The central standard of the Ministry of Economic Affairs (印 工 工 消费 社 社 印 5) (please read the precautions of Ifii before θ) Figure 24c shows the appearance of the decomposed plug frame 丨 丨 and the retaining ring 7. The outer peripheral surface of the ring 7 has half-moon-shaped protrusions 7a, 7b protruding from the outer side thereof, and the plug frame 11 has slit-shaped holes 11a, 11t) for receiving those. Further, the plug frame 11 is cut open to mutually connect the rear end openings thereof. Opposite the two long holes, that is, the slit He. When the cylindrical portion on the front side is inserted into the rear end of the plug frame U from the semilunar protrusions of the retaining ring 7, & Diameter is larger than the inner diameter of the rear opening, but the rear opening of the plug frame家 K-house standard (CNS) Ή specifications (2 丨 0x297g ¢) Λ (> Ιί) V. Description of the invention (3.) From 7a, 7b, if you open the slit nc, the meniscus 7a, 7b enters The inside of the rear end of the plug frame 11 is before the front face of the stop ring 7 hits the bottom of the rear end of the plug frame π, and the meniscus protrusions 7a, 7b enter the slit-shaped holes na, llb of the plug frame n. The elastic restoring force of U gradually narrows, such as slightly closing its slit nc and the rear end opening. As shown in FIG. 24b, the plug frame 11 and the retaining ring 7 are integrated. 25a to 25d show the sequence of fixing the connector to the optical fiber cable 19 as shown in Fig. 24b. First, the optical fiber cable is passed through the rubber cover 20, the pressing ring 21, the riveting ring 22, the retaining ring 7 and the coil spring 14 in this order (Fig. 25 &). Then, the characteristic of the front end of the trans-domain cable 19 exposes the strength line 23 and the defibrillation baseline 9 of the heart line (Figure 25b). Then, apply glue to the optical fiber baseline 9 and pass through the ferrule 12 (the material system does not maintain the through hole and the ferrule 12 becomes a body, and grind and repair the end face of the ferrule 12 (Figure 25c). Then, pass the ferrule 12 through The Ue hole in the flange of the plug frame is used to insert the disc holder into the rear end of the plug frame U. It is located between the collar 12 and the head frame n to support the-end (right end) of the coil spring 14 and the left side is pushed by the retaining ring 7) At the same time, the front end of the retaining ring 7 (the right end, the other side from the pin, and the other side is opened, so that the meniscus 7a of the stretcher ring 7 is inserted into the rear slit-shaped holes 11a and 11b of the plug frame 11. Department JC's member JC- Consumer Cooperative 卬 Secondly, after arranging the tensile strength line 23 on the s perimeter, the riveting ring 22 is shifted to the outer strength line at the rear end of the gown 7 of the stop ring 7 23, riveting the riveting ring 22, so that the ring ^^ around the surface of the tension retaining ring 7 integrated. Second, the outer i9a, the tensile strength line 23 and the small diameter rear end of the riveting ring 22 (left end ) Placed on the outer end (right end). Β side 'shifts toward the right side ^ paper scales are used in a poor family (CHS) Τ 4 gauge (210X297 male dragon) Λ (i _____ Π 6__ 5. Description of the invention (4_) The ring 21 is positioned on the outer peripheral surface of the small-diameter rear end of the ring 22, and the pressure ring 2i is riveted so that the ring 21, the outer sleeve 19a and the willow ring 22 are integrated. Then, the rubber cover 20 Shift to the right to cover the riveting ring 22. The above can obtain the optical fiber cable 19 with connector. Figure 25d shows its appearance. The handle 15 is installed as required. As shown in Figure 25d, by the rear end of the handle 15 ( (Left end) The plug frame 11 of the connector is press-fitted into the connector, and the handle 15 is a slightly flexible synthetic resin. The inner space is pushed away due to the pressing. As shown in FIG. 24b, the handle 15 and the plug frame 11 are integrated. It is known that there are two methods for inserting the plug frame 11 into the broadcast ring 7. The first method is to position the slit-shaped holes 11a and lib of the plug frame 11 to face the stop ring 7 semilunar protrusions 7a, 7b, that is, Based on the relative position relationship shown in Fig. 24c, the method of directly pushing the escape ring 7 into the plug frame 11 is pushed in. At this time, if the plug frame 11 contacts the inclined surfaces of the meniscus protrusions 7a, 7b, the U-shapes face each other. The two slits 11c extend the plug frame π with its elasticity, allowing the meniscus protrusions to enter, and the protrusions 7a, 7b are straight as usual. Enter the slit-shaped holes 11a, 11b. The Central Bureau of Standards, Ministry of Economic Affairs, and the Ministry of Economic Affairs have also cooperated with Du to produce another method, which is the second method, with its central axis as the center, as shown in Figure 4c. State, the plug frame 11 is rotated 90 degrees, so that the meniscus protrusions 7a, 7b of the retaining ring 7 enter along the two slits 11c facing each other in the plug frame 6. Then, the meniscus protrusions 7a, 7b enter the meniscus shape. When the protrusions 7a, 7b and the slit-shaped holes 11a, 11b are separated by 90 degrees, turn the plug frame 11 to 90 degrees. 'U-shaped two slits 11 c facing each other elasticity of the plug frame 11 When the plug frame 11 is extended, the meniscus protrusions 7a, 7b are rotated and moved to the positions of the slit-shaped holes 11a, lib. This paper is a standard for renting and renting in China (CNS) V4 specification (210X297 male; J2) Λ () | {6 V. Description of the invention (5 ·) In addition, it is also familiar that it is not a nested type but a screw connection A method for fixing the catch ring 7 and the plug frame 11 (Japanese Patent Application Laid-Open No. 61-129605). The above-mentioned conventional optical fiber cable with connector is composed of many parts such as rubber cover 20, pressure ring 21, riveting ring 22, retaining ring 7, coil spring 14, collar 12, and so on. Therefore, the cost is increased. The rear side of the ring 7 is attached with a willow ring 22, a pressure ring 21, a rubber army 20, and the like to perform connection with the optical fiber cable 19, so there is a problem that the connection is troublesome and takes time. In addition, in any of the j-th and second methods of combining the retaining ring 7 and the plug frame 11 described above, after pressing the retaining ring 7 straight into the plug frame 丨 1, to confirm whether the meniscus protrusions 7a, 7b of the catch ring 7 are Slit-shaped holes 11a, lib fitted to the head frame η, or to align the meniscus projections 7a, 7b with the slit-shaped holes 11a, lib, and rotate relative to the center axis of the plug frame 11 as a center Stop ring 7 and hoe frame 11. However, even if the meniscus protrusions 7a, 71? Do not match the slit-shaped holes 11a, 11b, the restoring force of the plug frame 11 is still used to press the meniscus protrusions 7a, 7b, and therefore a strong force is required for the rotation drive. On the one hand, if the meniscus protrusions 7a, 7b are tied to the slit-shaped holes iia, lib, the meniscus protrusions 7a, 7b are not detached from the slit-like holes 11a, lib unless they are rotated with a strong force. However, since this force and the force difference required to align the half-moon protrusions 7a and 7b with the slit-shaped holes iia and lib are small, it is relatively excessive to confirm the engagement of the circlip 7 and the plug frame 11. Rotating the retaining ring 7 and the plug frame 11 may easily cause assembly errors such as dislodging the meniscus protrusions 7a, 7b from the slit-shaped holes 11a, lib, or leaving them as they are. In addition, if an unfamiliar person connects the connector to the machine or removes the connector from the machine, the paper cover may be attached to the rubber cover 20; η H5 S 家 料 ⑽S) 1 丨 脑 (21ϋχ29ί 公 幻(Please read the back of the first note #Fill in • τ.〆τ The staff of the Shiyang Standards Bureau of the Ministry of Economic Affairs, the Consumer Price Cooperatives Seal 51 Λ (j B6 V. Description of the Invention (6 ·)

(Please pay attention to the matter first # Jft ^ L Torque or pull force. Therefore, the retaining ring 7 is detached from the plug ring 11 and it is easy to cause obstacles such as the break of the core 10 or the break of the core 10 or the optical fiber baseline 9 .. Although the above-mentioned polymer-coated optical fiber electrical overview 'has sufficient advantages of the aforementioned optical communication cable, but because the entire cable system is made of so-called quartz, plastic, resin, organic system polymer with low mechanical strength, Therefore, it only shows very little resistance to deformation such as stretching, lateral pressure, bending, etc. Therefore, a linear body containing Kepler or a high-strength plastic (polytetrafluoroethylene, FRp, etc.) is required to improve the strength. Especially Those who are overhead lines sometimes require extremely high tensile strength, sometimes plastic wires instead of concrete are sometimes used steel wires. Although the indispensable element for signal transmission is the aforementioned core wire, if steel wires are used, it becomes Thick and heavy cable. The metal tube covers the optical fiber cable. The core wire passes through the metal tube. It has high resistance to stretching, lateral pressure, bending, etc., and is thinner and lighter. Also, because of its small radius, Easy to bend The cable that causes the core wire to break is broken, so the processing is simple and easy to do the cable wiring, that is, the wiring. R '·: _ 经济 部 屮 央 # 准 局 S: printed by industrial and consumer cooperatives. In the market, f seamless tube-coated optical fiber cables and flexible tube-coated domain cables are released. 这些 The connection between these electrical fibers and their typical cables or communication equipment is as follows: ⑴Covered in seamless tube_cables The tube end of the seamless tube is shaped as a fixed nut. ⑵The tube end of the flexible tube that covers the fiber optic cable with the flexible tube is located between the adapter and the fixed nut of the fixed connector. Coated optical fiber_The end of the seamless tube is between the fixed end of the adapter and the end of the flexible tube. The other end of the flexible tube is between the fixed end of the adapter and the paper ruler. ) Flat 4 specifications (2) 0 × 297 public goods) H6 5. Description of the invention (7.) Fixed nut of the device. The advantage of the seamless tube covering the optical fiber cable is that it completely breaks the core wire from its external environment, but it is flexible. The performance is lower than that of flexible tube-coated optical fiber cable. On the one hand, the flexibility of flexible tube-coated optical fiber is not good. The optical communication cable is mostly covered with a seamless tube to cover the optical fiber cable, and the electrical end is connected to the connector in the manner described above. That is, in the place where a small half-mile bend is required, it is between the adapters. Connecting flexible tube-clad fiber optic cable to seamless tube-clad fiber optic cable. Metal tube-clad fiber optic cable has important shortcomings in terms of insulation. That is, the inner fiber-optic core wire insulation is covered, so There is no signal obstacle caused by live wire contact, but the outer metal pipe is a good conductor, which is equivalent to the current flowing through the connector installed at the end of the metal pipe to the machine or device. Sometimes the machine or device is damaged due to this current. Equipment. Therefore, it is best to cover the metal pipe with an insulator such as an organic system polymer. However, if the coating is thickened, the flexibility of the electrical fiber is reduced, and the weight of the cable is increased. Bend / stretch twice or hit something to break the cover. [The gist of the invention] The Central Standards Department of the Ministry of Economic Affairs has agreed to cooperate with Du Du to print the first objective of the present invention, which is to provide a metal tube-coated optical fiber with strong mechanical strength and not easy to cause damage to the inner core of the optical fiber. The second objective is to prevent electric current from flowing into the machine connected between the metal tube with the connector and the optical fiber cable connected with the connector, and the third objective is to reduce the number of parts of the optical fiber cable with the connector and to simplify the connection between the cable and the connector. The 4 purpose system does the connection of the connector to the cable, and it is not easy to be separated after the connection. The metal-clad optical fiber cable according to the first aspect of the present invention is provided with a National Standard (CNS) specification (210x297) Λ 6 -— _Β6_ combined with the standard of this paper. V. Description of the invention (8.) (Please read first It is difficult to write the metal converter of the machine. The fiber optic cable (3,6,10) with a metal tube cover is supported. The metal tube is supported by the cable (3,6,10). The front end of the optical fiber ⑽ is located at the front end of the outer optical fiber ，, and guides the front end to the insulator ferrule ⑵ of the optical fiber insertion hole of the metal adapter ⑽; push the insulator ferrule 贯通 to the spring member 贯通 passing through the metal adapter ⑵ ; The insulator collar ⑽ is freely supported in the aforementioned through direction, one end is fixed to the insulator base (11, 15) of the metal adapter ⑵, and one end is fixed to the insulator base (1) L, i5). The other end is fixed at least to a metal material cable connection body (7, 8) covered with a metal tube of the optical fiber cable (3, 6, 10). In addition, the symbols in parentheses represent the first-mentioned sections shown in the drawings. Corresponding elements or corresponding matters of the first embodiment (Figure 1). The base (UJ5) is an insulator, so a high degree of insulation can be obtained between the metal pipe and the machinery and equipment connected to it. For example, it can not make current flow into the machinery and equipment as long as it is in contact with other live wires. Destroy machinery and equipment. In addition, because the optical fiber is covered with a metal tube, it is lightweight and has high strength. Therefore, a highly secure optical fiber cable can be obtained. In most of the variations of the first embodiment (FIGS. 2, 7 and 8), the fixed nut ⑻ fixed to the base (11, 15) is used as an insulator, and in another variation (FIG. 3), the end is fixed to the fixed The nut ⑻ is at the other end a cable adapter ⑺ that is fixed at least on a metal tube fixed to the optical fiber cable (3, 6, 10) as an insulator. In another modification (Fig. 4), the metal tube 系The adapter ⑽ connected to the base (11, 15) is an insulator. The metal tube-coated optical fiber cable according to the second aspect of the present invention is provided with a Chinese paper standard (CNS) TM specification (210X2 ( J7 Male ¢) Λ () It 6 V. Invention Theory (9.) A fiber-optic cable (19B) covered by a tube, which has a continuous front opening, rear opening, two openings of the inner space, and a plug frame (U) protruding from the inner flange (Ue) of the inner space, An outer flange (12a) contacting the inner flange (11e) and a central hole penetrating the base line ⑼ of the optical fiber (19B), the central hole of the inner flange (11e) is penetrated from the rear end opening side To the collar rib on the front opening side, push the collar 02) from the aforementioned rear opening side to the front opening side, and one end contacts the compression coil spring ⑽ of the collar ⑽, and bears the compression coil spring 结合 coupled to the rear end of the plug frame ⑼. The front end of the end can enter the rear end of the optical fiber cable (19B) having a larger diameter opening, and the retaining ring 贯穿 which penetrates from the opening to the front end and penetrates the central hole of the core wire ⑽ of the optical fiber cable (19B). In addition, the symbols in parentheses indicate the corresponding elements or corresponding items of the second embodiment (FIGS. 9a to 9c) described later in the figure. According to it, because the covering material (3, 6) 'of the optical fiber cable (丨 9B) is fixed at the rear end of the retaining ring ⑺, the front end of the retaining ring ⑺ is combined with the plug frame structure of the supporting ring ⑽, so there is no FIG. 24b. The shown riveting ring ⑽, pressing ring 0) and rubber cover ⑽ have a small number of parts. Therefore, the cost of the connector is reduced, and the connector is easy to assemble. In the second embodiment (FIGS. 9a to 9c), the retaining ring ⑺ has engaging protrusions (7a, 7b) and rotation preventing protrusions (7c, 7d) protruding from the outer peripheral surface of the front end, and the plug frame (Π) has Enter the engaging holes b) of the engaging protrusions (7a, 7b), and open at the rear end to receive the non-rotation protrusions (7 (^, 7 (}) to guide the non-rotation protrusions from the rear opening to the front opening direction ( 7c, 7d) movement to stop the long hole ⑴c) with the stop ring ⑺ center axis as the center rotation. Therefore, align the non-turn protrusion (7c, 7d) with the long hole ⑴e) Tackle ring towel B1 The material (where) is dirty (210X297 male; 1J :) '~~' ----— Read it behind it It matters #

The Ministry of Economic Affairs, the Central Bureau of Quasi-Bureau Consumption ^: printed by the cooperative

V. Description of the invention (10 :) A process in which the front end of ⑺ is pressed into the opening of the plug frame αΐ), and the engaging protrusions (7 a, 7 b) of the retaining ring ⑺ are fitted into the engaging holes of the plug frame (Π) (11 a, 11 b), the combination of the redundant ring ⑺ and the plug frame (Π). Later, since the long hole (Π c) prevents the protrusion (7 c, 7d) from rotating, the stop ring ⑺ cannot rotate with respect to the plug frame ⑶. It stretches in the opposite direction to the direction in which the retaining ring ⑺ is inserted into the plug frame ，, and the fastening of the engaging protrusions (7a, 7b) and the engaging holes (lla, llb) is relatively strong, although the retaining ring ⑺ will still not be pulled. Disengaged from the plug frame (Π). In a modified example of the second embodiment (Fig. 11a and lib), the retaining ring ⑺ has engaging protrusions (7a, 7b) protruding from the outer peripheral surface of the front end and extending from the front end surface to the direction of the central hole. The guide groove (7g, 7h), the plug frame (Π) has an engagement hole (11a, lib) that enters the engagement protrusion (7a, 7b), and enters the guide groove (7g, 7h) to guide the mobile guide groove (7g, 7h) 7g, 7h) to the extension direction to prevent the rotation-preventing protrusions (llj, Ilk) centering on the center axis of the circling ring ⑺. According to it, the guide groove (7g, 7h) is aligned with the anti-rotation protrusion (llj, Ilk). During the process of pressing the front end of the stop ring (7) into the rear end of the plug frame (11), the stop ring (7 ) The engaging protrusions (7a, 7b) are inserted into the engaging holes (11a, 11b) of the plug frame (11) to complete the assembly of the retaining ring (7) and the plug frame (11). In the future, since the rotation-preventing protrusions (llj, Ilk) prevent the guide groove (7g, 7h) from rotating, the stop ring ⑺ cannot rotate with respect to the plug frame (Π). The direction in which the retaining ring ⑺ is inserted into the plug frame ⑪ is reversely stretched, and the fastenings of the engaging protrusions (7a, 7b) and the engaging holes (lla, lib) are relatively strong, although the retaining ring ⑺ is still not stretched. It will disengage from the plug frame (Π). Other objects and features of the present invention may become apparent from the description of the following embodiments with reference to the drawings. The paper size is easy to use. Η 家 iiiMCNS) 4 specification (21 (1X297)) (Please read the back and pay attention to the contention item # 埚 Write mine; Λ Γ > η 6 V. Description of the Invention (u.) [Simplified Description of Drawings] FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention. FIG. 2 is a first modification example of the first embodiment. Fig. 3 is a longitudinal sectional view showing a second modification of the first embodiment. P 4 is a longitudinal sectional view of a third modification of the first embodiment. Fig. 5 is a view showing the first embodiment. A longitudinal sectional view of a fourth modification. Fig. 6 is a longitudinal sectional view of a fifth modification of the i-th embodiment. Fig. 7 is a longitudinal sectional view of a main portion of one modification of the fifth modification. 8 is a longitudinal sectional view of a main part of another modification of the fifth modification. Fig. 9a is a longitudinal sectional view of a second embodiment of the present invention. Fig. 9.b is a second embodiment of Fig. 9a. An exploded perspective view showing the appearance of several parts. Fig. 9c is a front view showing the end face of the retaining ring 7 shown in Fig. 9b. Fig. 10 is a diagram showing a [variation example] of the second embodiment. An exploded perspective view of the appearance of each part. Fig. 11a is an exploded perspective view showing the appearance of several parts in the second modification of the second embodiment. Fig. 11b is a cross-sectional view taken along line B-B in Fig. 11. 'Fig. 12 shows A front view of the end face of the second modification of the second embodiment of the escape ring 7. Fig. 13a is an enlarged side view showing a part of the flexible tube 6 shown in Fig. 1 being cut. Jiaxuan rate (CNS) τ 4 specification (210x29γ public goods) (Please read the back of the precautions before writing Μ Ministry of Economic Affairs 屮 Central Standards, and only eliminate cooperation Du Yin Μ

iU V. Description of the invention (12) Fig. 13b is an enlarged longitudinal sectional view of the flexible tube 6 in Fig. 1. Fig. 14 is an enlarged perspective view showing the flexible tube 6i shown in Fig. 1 with a sheet of paper and a strip 61 processed by the press. FIG. 15 is a side view of the tube used for the flexible tube 6 shown in FIG. 1. Fig. 16a is a side view showing the circuit formed by the flexible tube 6 shown in Fig. 15; Fig. 16b is a plan view showing the circuit formed by the flexible tube 6; Fig. 17a is a plan view showing the circuit shown in Fig. 16a; Side view of the flexible tube 6 with additional tension to shrink. Small-diameter circuit. Fig. 17b is a plan view showing a small-diameter circuit in which the flexible pipe_6 shown in Fig. 16b is added with a pulling force. Fig. 18a is a side view showing a state in which the circuit of the flexible man 6 shown in Fig. 17a is opened due to tension. Fig. 18b is a plan view showing a state in which the circuit of the flexible tube 6 shown in Fig. 17b starts to open due to tension. Fig. 19 is a side view of the tube thrown on the flexible tube 6 shown in Fig. 1. The central standard of the Ministry of Economic Affairs Λ0 Bei Gong Xiao 4: Cooperative Dumplings · Fig. 20a is a side view showing the state where the flexible tube 6 is bent as shown in Fig. 19 when the longitudinal compression force along the axis is applied. Fig. 20b is a plan view showing a state where the flexible tube 6 shown in Fig. 19 is bent by applying a longitudinal compression force along the axis. Fig. 21a is a side view showing a state where the flexible tube 6 shown in Fig. 20a starts to form a circuit due to a compressive force. Fig. 21b shows the flexible tube 6 shown in Fig. 20b. The paper ruler was opened due to the compression force while using the Chinese ffl standard (CNS) T 4 specification (2) 0x297 mm; it) Λ 0 Β 6 V. Description of the invention (13.) A plan view showing the state of the loop. Fig. 22a is a side view showing a loop formed by 6 as shown in Fig. 21a. Fig. 22b is a plan view showing a circuit formed by the pullable tube e shown in Fig. 21b. Fig. 23 is a magnified longitudinal sectional view of the .f-curve used for the 6-tube tube shown in Fig. 1 and the light-centered line shown in it. Fig. 24a is a side view showing a conventional optical fiber electric fiber. Figure 24b is an enlarged cross-sectional view of a plane parallel to the paper surface of Figure 24-cut LJ1 Phoenix: Chengguang-. Fiber cable connector. > Fig. 24c is an exploded perspective view showing the appearance of several parts of the connector shown in Fig. 24b. Figs. 25a to 25d are side views showing the order of installing connectors on the cable ends before constituting the fiber optic cable shown in Fig. 24'a. Explanation of the preferred embodiment (many) [First Embodiment] FIG. 1 shows one end portion of a metal tube fiber cable in the first embodiment. In addition, the other structure is the same. Cable This system covers the seamless tube cable 19a of the seamless tube 4 with a resin 3a, and fixes one end of the intermediate adapter 5 to the seamless tube 4 with small screws 18a, 18b. At the other end of the intermediate adapter 5, the flexible tube cable 19B that covers the flexible tube 6 with PV resin 3b is fixed with small screws 17c, 17d. The other end of the flexible tube 6 is fixed to one end of the adapter 7 with small screws 17 a and 17 b. The other end of the adapter 7 is fixedly locked by a fixed nut 8. Covered with a thin resin coating at one time, covered with a core paper size, and used in the Ming Dynasty family standard ijl (CNS wide fM specification (210X297) ((please first | «] read back and note # 蜞 写 铧) Ministry of Economic Affairs Printed by the Central Bureau of Standards, KK Industrial Consumer Cooperatives! V. Description of Invention (14 ·)

(Please read the "Notes on the back and read the note Sun Ke writes L and the metal cladding fiber baseline 9 fiber optic core line 10, through seamless tube 4, adapter 5, flexible tube 6, adapter 7 and fixing nut & In addition, the flexible tube 6 has the property of maintaining straightness in the longitudinal direction. The connector includes a cylindrical body 11. The body 11 is inserted into the collar 12 at the front and the shaft at the rear. The ring 13. The front end of the collar 12 protrudes from the body. The compression coil spring 14 is inserted between the collar 12 and the collar 13. The collar 12 is splined to the body 11, and the flange of the collar 12 touches To the body; q inner flange 11 a. The body 11 penetrates the connection nut 15. The connection nut 15 shown in FIG. 1 is bolted to a metal connection adapter 2 (not shown) of a communication device. Due to the screw-locked combination lock, the inner flange 15 a of the connection nut 15 touches the outer flange of the body Π, and the body 11 is fixed to the connection adapter 2. The female of the fixed nut 8 A male bolt 11 c bolted to the outer periphery of the rear end of the body 11. The collar 12 is located at the center position of the connection adapter 2 due to the rebound force of the compression disk 篑 14. Push the device-side collar 120 to closely fit the front end surface of the collar 12 to the front end surface of the communication equipment side collar 120. For the baseline 90 axis fixed to the collar 120, it is necessary to achieve a precision of 丄 ~ 2 " The degree of matching is fixed to the baseline 9 axis of the collar 12. The Ministry of Economic Affairs, the Central Bureau of Standards, IS: printed on the metal pipe of the consumer cooperative, that is, between the flexible pipe 6 and the communication device connection adapter 2, It has an adapter 7, a fixed nut 8 and a body 11. In this first embodiment, the body 11 is made of an insulator (in this embodiment, a polycarbonate with abrasion resistance and high strength), and the collar 12 and Connect the nut 15. That is, in the insulator body 11, the electrical connection of the mechanical coupling from the flexible tube 6 to the adapter 2 is disconnected. Therefore, it is assumed that an abnormal current flowing through the flexible tube 6 will not flow to the connection adapter. Connector 2. In addition, the above-mentioned insulators are inherently bulky, and the paper is used again in accordance with China National Standards (CNS) V 4 specifications (210 X 297 public goods). System A 〇 ____ Π6_ __ 5. Description of the invention (15.) Resistance (relative humidity 50%, 23 ° C) > 1013 Ω αη and piezoelectric resistance (short-time method, thickness 3.17mm) > 100 KV / cm, for the body 11 shown in FIG. 1, the collar 12 and the connection nut 15 are made of polycarbonate having abrasion resistance and high strength However, these materials can also use other resins, ceramics, or some mixtures. For these parts, a certain degree of mechanical strength is required. For example, the mechanical strength, the tensile strength is preferably 150 kgf / cm2 or more. In addition, the first embodiment Although a seamless tube cable 19 A and a flexible tube cable 19 B are used in combination, they are not limited to these. Only the seamless tube cable 19 A is used to directly fix the adapter 7 to this type, or only a flexible tube cable is used. The form of 19 B is still the same to implement the present invention. Furthermore, in the embodiment shown in Fig. 1, the ferrule 12, the connection nut 15 and the body 11 are used as insulators, but instead of being shown in Fig. 2, a fixed nut 8 may be used as an insulator. In the first modification shown in FIG. 2, the fixed nut 8 is made of phenol-formaldehyde water resin and glass fiber. Further, as shown in FIG. 3, the adapter 7 may be used as an insulator. In the second modification shown in FIG. 3, the adapter 7 is made of polyethylene. Also, although not shown in the figure, it is preferable to install the ground point on a metal pipe near the insulator or as a part of the electrical connection relationship. Fig. 4 shows a third modification of the first embodiment. In this example, the insulator adapter 16. The flexible tube cable 19B is connected to the body u. That is, instead of the adapter 7 and the fixing nut 8 shown in Fig. 丄, a form adapter 16 is used in which both are integrated. To endure repeated attachment and detachment of the connector, the connection adapter 2, the collar 12, and the connection nut 15 are made of metal. In this example, the adapter 16 is made of polyethylene to prevent the abnormal current of the flexible tube 6 from flowing to the connection adapter 2. As described in the paragraph (please write down the wooden page in the first place) ❿. 装 ··· " -line-This paper is in the middle of the standard ® 囷 家 标 毕 (chs)

Λ G --------- It 6_ 5. Description of the invention (16.) 3 Modifications, that is, the number of parts of the connector is small. Fig. 5 shows a fourth modification of the first embodiment. In this example, the fixing nut 8 shown in Fig. J is changed to a case having a rear end sleeve 8a for fixing a seamless pipe by riveting. Fig. 5 shows a form of use. Since the connector is coupled to the flexible tube cable 19B, the function of the caulking sleeve 8a is not used. FIG. 6 shows a fifth modification. It represents another use form shown in FIG. Here, the seamless tube 4 is fixed to the fixing nut 8 by riveting the sleeve 8a. Therefore, the connector shown in FIG. 5 can be used not only for the flexible tube cable 19B but also for the seamless tube 4 (FIG. 6). The Central Standards Bureau of the Ministry of Economic Affairs only eliminates cooperation and Du Yin51 In addition, the fixed nut 8 shown in Figs. 5 and 6 is a metal body with a sleeve 8a, but it is fixed as shown in Fig. 7 or 8 The nut 8 can also use the nut 8b or 8d and the metal material rivet fitting 8 (: or 86 as the basic parts, and those can be integrated by bolting or pressing in. As shown in Figures 7 and 8, The nuts 8b and 8d are used as insulators, that is, the body 11 shown in FIG. 5 and the nut 15 and the collar 12 may be used as metal materials depending on the combination. In the example shown in the figure, the thickness of the seamless pipe 4 is 0. .2 legs, the thickness of the fine portion of the riveting fitting 8c and the thickness of the riveting fitting 8e are drawn in 0.4 mm. When the seamless pipe 4 is fixed by the riveting of the fitting 8 (:, the seamless pipe 4 is stretched, side dust The strength of deformation such as bending is strong. Since the fixed nut 8 with the sleeves 8a, 8c, 8e can be used for riveting metal pipes (Figure 6) and those who do not need riveting (Figure 5), it has its connector use Broad. It is not ideal to form riveting fittings 8c and 8e with insulators in terms of strength. [Second embodiment] As shown in the second embodiment of the present invention, Figure 9a, which can be used to flex the tube around the paper scale. A Family Sample Complete (CHS), 丨, 4 regulations (210 father 297 male dragon > Ministry of Economic Affairs 屮 准 准:; Workers ’cooperation cooperation Du Printed Λ (i Η 6 V. Description of the invention (17.) 19 The optical fiber baseline 9 of B passes through the ferrule 12 and is fixed to the ferrule 12. The diameter of the optical fiber baseline 9 is about 125 // m. It is coated with a thin resin The core wire 10 covering the optical fiber baseline 9 once is also fixed to the ferrule 12. The ferrule 12 penetrates the center hole of the inner flange 11e of the plug frame Π, because the outer flange 12a of the ferrule 12 hits the inner flange 11 e and prevent the collar 12 from moving to the right. The inner flange of the plug frame π; Q e is located at the middle of the front (right end) and rear (left end) openings. Enter at the rear opening The front end of the retaining ring 7 and the compression coil spring 14 pushed by this front end push the collar 12 to the right. Therefore, the outer flange 12 a of the collar 12 is pressed against the inner flange lie. Rebounding force to the right. On the outer peripheral surface of the front end of the circling ring 7, cut into parallel grooves to form the meniscus protrusions 7a and 7b installed on the outer circumferential axis of the cylinder and enter the plugs. The slit-shaped holes 11a and lib of the frame 11 are integrated into the stop ring 7 and the plug frame 11. The stop ring 7 is made of synthetic resin, and the lever is longer than the stop ring of the conventional use case (Fig. 24b). At the rear end of 7, cut the opening (thick diameter hole) into which the flexible tube cable 19B can be covered with synthetic resin 3b, and fix it to the front end of the small screws 17a and 17b that are orthogonal to the bolt holes, and penetrate the outer sleeve 3b. Hold the flexible tube 6. In this embodiment, the flexible tube cable 19 B is short, and the optical fiber core wire is threaded +. After the burnable tube 6 coated with 3 b is coated with synthetic resin, the tube has high flexibility and resistance to compression High strength and tensile strength. Here, the flexible tube cable 19B is interposed between the intermediate adapters 5 and connected to a longer seamless tube cable 19A covered with the synthetic tube 3a to cover the seamless tube 4. However, the cables 19A and .19B are connected by one line, and the intermediate adapter 5 is connected by the jackets 3a, 4 and 3b, 6 of the cables 19 A and 19 B mechanically. Specifications (210X297 public goods) (please read the precautions first and write the wooden pages with sun pots) Packing · Thread-A 6 Η β 5. Description of the invention (18.) Figure 9b shows the stop ring 7 and The external appearance of the plug frame ^ is shown in FIG. On the outer peripheral surface of the retaining ring 7, there are meniscus-shaped projections 7a, 7b protruding from the outside. Between these projections 7a, 7b and the front end surface, there are two non-rotation projections 7c, 7d extending to the axial direction. Stop d is located in the middle of the semilunar protrusions 7a, 7b. The plug frame lamp has slit-shaped holes 113, 111) that receive the half-moon-shaped protrusions 73, 71), and cuts and receives the half-moon-shaped protrusions 7c, 7d, and the two opposite long holes that are continuous to the rear opening, that is, the slit 11c . For example, if the non-rotation protrusions 7c and 7d are aligned with the slit 11c, the end-side cylindrical portion is inserted into the rear end of the plug frame 从 from the half-moon protrusions 7a and 7b. The inner diameter of the end opening, so these will hit the rear opening edge of the plug frame 11. If the retaining ring 7 is reinserted as usual, the rear end opening of the plug frame 11 is pushed away by the meniscus protrusions 7 & 71) to open the slit lie, and the meniscus projections 7a and 7b enter the inside of the rear end opening of the plug frame 11 Before the front face of the retaining ring 7 hits the rear end of the plug frame u, the meniscus 7 a, 7 b enters the plug frame; the slit-shaped holes 1 of q; la,: lib, because of the plug frame 11 The elastic restoring force makes the slit 11 (: and the rear end opening gradually narrow to close slightly, as shown in FIG. 9a, combined with the plug frame; Q and the escape ring 7. In this combined state, due to the meniscus 7a, several The end face of the notch touches the short-side inner surface of the holes 11a, 11b, and the stop ring 7 cannot be rotated because the stop protrusions 7c, 7d are blocked by the slit lie. Especially, the stop protrusions 7c, 7d and The slit lie has a high resistance to rotation. For the force in the direction in which the retaining ring 7 is pulled out from the plug frame n, the meniscus protrusions 7a, several and the slit-like hole 1; [a, 11 b have high coupling strength, as long as they are not pushed apart The rear end of the plug frame .11 is open, that is, the retaining ring 7 cannot be pulled out. Please: First: read „in. Back · and · it · Italian · Things: Item: #. m · Write • "

(Ministry of Economic Affairs, Central Government) β) j. Consumer Cooperative Copies Printed on Paper Reverse Standards (CNS) Specifications (210X2) and Λ () Π 6 V. Description of the Invention (19.) Figure 10 A first modification of the second embodiment is shown. In this modification, instead of the disc-shaped protrusions 7e and 7f, the non-rotation protrusions 7c and 7c [extending to the axial direction shown in FIG. 9b are used. The other structures are the same as those shown in Fig. Gb. Fig. 11a shows a second modification of the second embodiment. In the second modified example, guide grooves 7g and 7h are formed on the outer peripheral surface of the front end of the sowing ring 7. The central axis of these guide grooves 7 and ring 7 is parallel to the rear end side 11k of the guide grooves 7g and 7h (Fig. 11b). The holes 7 g and 7 h of) are opened from the front end of the escape ring 7, and the moon-shaped protrusions 7 a and 7 b extend to the rear end side. The end part is provided with a claw 11 which can be described later. I, i ° has a slit-shaped hole 11 a and π b plane which is orthogonal to the plug frame Π, and has a plane parallel to the central axis of the frame 11 and behind the frame U. Two slits with open ends are formed by these slits for 11 h. The same tongue piece Hi is formed on the facing surface forming the tongue piece h, and the rear ends of the tongue pieces llh and ui are provided with claws 11 j and k protruding inwardly (FIG. 11 b ) 〇 The Central Ministry of Economic Affairs and the Consumers ’Cooperative Co., Ltd. printed the guide grooves 7g and 7h of the stopper ring 7 to the tongues 11h and 11i of the plug frame 11 to insert the stopper ring 7 into the plug. Frame Π, that is, firstly push the claws llj and uk outward on the bottom surfaces of the guide grooves 7g and 7h to open the tongues llh and lli slightly to the outside, and guide the claws llj and llk with the grooves 7g and 7h. Then, since the outer diameter of the meniscus projections 7a, 7b is larger than the inner diameter of the rear end opening, these things will hit the rear opening edge of the plug frame 11. If the retaining ring 7 is inserted again, the rear end opening of the plug frame 11 is pushed away by the half-moon projections 7a, 7b to open the slit 11c, and the half-moon projections 7a, 7b enter the rear opening of the plug frame 11, and Before the front end surface of the circling ring 7 hits the bottom of the rear end of the plug frame η, the meniscus protrusions 7a, 7b enter the slot-shaped paper frame of the plug frame 11 and are used in Bl-size (CNS) TM specifications (210X297 (;) Η 6 V. Description of the invention (20.) The holes 11 a and 11 b are gradually narrowed due to the elastic restoring force of the plug frame 11 so as to slightly close the slit 11 c and the rear end opening. Retaining ring 7. At the same time, the claws 11 j and Ilk enter the holes 7i at the rear end of the grooves 7g and 7h, and gradually narrow due to the elastic restoring force of the tongues 11h and 11i to close these slightly. The tongues llh and 11i just fit into the grooves 7g, 7h. In this combined state, the recessed end faces of the meniscus protrusions 7a, 7b touch the short-side inner surfaces of the holes ua, lib, and the tongues 11h, 11i are fitted into the grooves 7g, 7h, and the claws 11j, Ilk It fits into the hole 7i, and the retaining ring 7 cannot be rotated. With regard to the directional force of withdrawing the retaining ring 7 from the plug frame 11, the endurance of the meniscus projections 7 a and 7 b and the slit-shaped holes 11 a and 11 b and the engagement of the claws Π j, 11 k and the holes 7 i are endured. Therefore, as long as the rear end opening of the plug frame 11 is not pushed open, the retaining ring 7 cannot be pulled out. 0 Regardless of the second embodiment described above, any of the first modification and the second modification, the rear end side of the plug frame 11 is half All are quadrangular, so as shown in FIG. 12, the outer shape of the meniscus protrusions 7 a and 7 b (FIGS. 9 b,. 10 and 11 a) can also be made into a quadrangular shape. In addition, FIG. 12 is a front view showing the front end surface of the stop ring 7 corresponding to FIG. 9c. Therefore, if it is formed in a quadrangular shape, the resistance to the rotation of the stop ring 7 is enhanced by the combination of the protrusions 7a, 7b and the slit-shaped holes 11a, Ub. According to the second embodiment and its modification described above, since the number of parts is reduced compared with the conventional case (Fig. 24b), the cost is reduced, and the connection work of the metal fiber optic cable and the connector can be simplified. After the connection is completed, although a rotational force or a tensile force is relatively generated between the plug frame and the retaining ring, since it can tolerate its high strength, the two will not be separated. The paper rule Λ general t Η 棕 home brown standard (CNS) Ή specifications. (210x29 · / male; ¢) A fi H 6 V. Description of the invention (21.) The precautions of m first in) are more difficult% wood π [Explanation of Flexible Tube 6] Printed in Figure 13a by the Consumers ’Cooperative of the Central Bureau of Associate Bureau of the Ministry of Economic Affairs, and the first and second embodiments described above, and the flexible coil 6 spiral coil sections used in these modifications Distance, hereinafter referred to as "丄 pitch member". The one-pitch member is composed of a large-diameter portion 64 and a small-diameter portion 67. The large-diameter portion 64 includes a first annular end portion 65 protruding from the small-diameter portion 67 at one end. Similarly, the small-diameter portion 67 has a second annular end portion 68 ° protruding from the large-diameter portion 64 at one end, and then connects the large-diameter portion 64 and the small-diameter portion 67 via a ring-shaped connecting portion 69. Then, as shown in Fig. 13b, the adjacent members 63 are connected in a spiral manner to the tube axis direction. In this connection portion, the second annular end portion 68 is actually connected to the first annular end portion 65 in the large-diameter portion 64 of the adjacent member 63. In order to shift the adjacent members 63 to the tube axis direction, the first annular end portion 65 and the second annular end portion 68 are located outside the small-diameter portion 67 and inside the large-diameter portion 64 of the adjacent member, respectively. There is a gap L1 between the ring-shaped connecting portion 69 and the ring-shaped connecting portion 69. Then, the inner diameter of the first annular end portion 65 is increased so that a gap L2 is generated from the outer diameter of the small diameter portion 67, and the outer diameter of the second annular end portion 68 is reduced to generate a gap L2 from the inner diameter of the large diameter portion 64. The minimum bending radius of the flexible tube 6 can be adjusted according to the size of the gap L2. As shown in FIG. 14, the flexible tube 6 is obtained by pressing the metal strip plate 60 into a cross-section S-shape as a concave-convex strip 61 with a press, and rolling the strip 61 into a spiral. The first and second annular end portions 65 and 68 and the connection portion 69 are preferably inclined so as to facilitate press processing and improve the contact between the first and second annular end portions 65 and 68 to conform to the spiral joints. Angular. As shown in FIG. 15, the flexible tube 6 is kept horizontal at positions 75A and 6B. Then, as shown in FIG. 16 a (side view) and FIG. 16 b (plan view), a large radius is formed on the flexible tube 6. 1 circuit L, as shown in Fig. 17a (Chinese paper standard (CNS) T4 standard (210x297)) Λ (5 Β6 Ministry of Health, Ministry of Economic Affairs, Central Government urges employees to eliminate " printed by cooperatives) V. Description of the invention (22.) Surface) and @ 17b, provide the horizontal direction of the flexible pipe 6 'If you gradually increase it to reduce the radius of the circuit, the flexible pipe 6 can not finally maintain the circuit' as shown in the figure 18a (side view) and FIG. 18b (plan view) open the circuit. Therefore, the radius r of the circuit before opening is called the "circuit loop half clearance". The thickness of the strip plate 60 is thick, the strip plate 60 is hard, or the diameter of the flexible pipe is larger. The larger the loop clearance radius r is, the larger the 0 is. It is better to set a loop clearance radius r of 15 or more dirty in the fiber core 10 to avoid adding the bending radius above the allowable radius. On the one hand, as shown in FIG. 19, at 75cm The distances 6C and 6D keep the flexible tube 6 horizontal, and then as shown in Fig. 20a (side view) and Fig. 20b (flat surface) (Picture) No, if the compressive force provided to the flexible pipe 6 gradually approaches the holding points 6C and 6D, the flexible pipe 6 is drooped into a U-shape, and then twisted as shown in Figure 21a (side view) and Figure 21b (plan view) As shown in Fig. 22a (side view) and Fig. 22b (plan view), the U-shaped portion M forms the loop L. The U-shaped portion M is twisted by 90 degrees with respect to the direction of the additional compression force. The loneness radius R of the M-shaped portion M is called the "circle forming radius." The strip plate 60 is thin, the strip plate 60 is soft, or the flexible pipe diameter is small, or the i-th ring end 65 and the second ring end The smaller the overlap of the parts 68 is, the smaller the loop radius r is. The smaller the loop radius R is, the higher the flexibility of the flexible pipe 6 is, and the easier it is to guide wiring in the box. It is preferable to set the loop radius R to Below 200, 0 The inner diameter of the flexible tube 6 is considerably larger than the outer diameter of the fiber core 10, and the core 10 can be easily moved within the tube 6. By taking the material from the strip 61 (Figure 14) The strength of the spiral to be restored straight will produce a tensile effect on the flexible pipe 6 along the axis of the flexible pipe 6, so the pipe 6 will be restored straight. If the flexible pipe 6 is not produced Xiao Η neutralized with S-like home MCNS) >! M legs (2 Euro 29 / male Long)

Λ () Η 6 V. Description of the invention (23.) When an external restraining force is generated, as shown in FIG. 13b, the first annular end portion 65 and the second annular end portion 68 are contacted. The compressive force action in the axial direction is reduced, but the tensile force action does not extend. If the bending force is added to the flexible pipe 6, it is bent as shown in FIG. 23, but the first ring-shaped end portion 65 and the second ring-shaped end portion 68 are firmly in contact with each other on the outer side of the bend, and are separated from each other on the inner side. The curved outer side does not extend, but it shrinks the inner side. That is, since the total length of the tube 6 has no actual change, and the inner diameter of the tube 6 is considerably larger than the outer diameter of the core line 10, there is actually no effect of tension and tension in the core line 10 in the tube 6. . Here are examples of flexible tube fiber optic cable 19 B: ⑴ Flexible tube 6: 3.0 mm inner diameter and 4.6 outer diameter. Material 60 is stainless steel with a thickness of 0.2 coffee. .Loop loop half-control r: 34 mm 〇 Forming loop radius R: 131 mm ° Fiber core 10: Quartz system glass fiber baseline 9 with core diameter of 50 # m and outer diameter of metal cladding 125 " m Implementation of outer diameter 250 # m resin coater. ⑵Flexible tube 6:. Inner straight. Diameter 3.0 face, outer diameter 4 _6 deleted. Material 60 is stainless steel with a thickness of 0.2mm. Loop clearance radius r: 34mm. Forming loop radius R: 131mm 〇 Optical fiber core line 10: Paper 5 Gen rule A Easy use in troubled countries (CNShM specification (2) (1 parent 297 mm) (Please read the back of the law meaning matters # Fill in装 ·· ，. 线. Printed by the Shellfish Consumer Cooperative of the Ministry of Economic Affairs, Central Bureau of quasi-government, V. Invention description (24.) Λ (J | {6 Central Standard of the Ministry of Economy # m and metal clad outer diameter 125 " m quartz system glass optical fiber baseline 9 is coated with a resin with an outer diameter of 250 # m, and then a PV coating with an outer diameter of 0.35 legs is applied thereon. ⑶ Flexible tube 6: Inner diameter 3 · 0 legs, outer diameter 4.6 legs. Material 60 is stainless steel with a thickness of 0.2 sides. The outer surface of the tube is coated with pe with an outer diameter of 5.0 ° 3b. Loop clearance radius r: 47 mm. R: 163 wake 0 optical fiber core wire 10: a primary coating with a 250 # m outer diameter is performed on a quartz system glass optical fiber baseline 9 with a core diameter of 50 # m and an outer diameter of 12 5 # m of the metal cladding. As shown in Figures 5 and 9a, the number of combined cables made of adapter 5, seamless tube fiber optic cable 19 A and flexible tube fiber optic cable 19 B is as follows ⑸Seamless tube fiber optic cable 19 A: After annealing to form a uniform structure of the welded tube of stainless steel (SUS 304), the seamless tube 4 with an outer diameter of 1.0 legs and a thickness of 0.15 is implemented. PV-coated 3A. Flexible tube fiber optic cable 19 B: Flexible tube 6: 3.0 diameter inside diameter, 4.6 diameter outside diameter. Material 60 series stainless steel (SUS 304) with thickness 0.8_. Loop clearance radius r: 34mm. Form the loop radius R: 131 legs 0 Optical fiber core line 10: (Please read the precautions written by Sun Xiang ^ page first) Binding. Thread · This paper size is in accordance with China Standards (CNS) specifications (2) 0x2 (J7 公 垃) Λ 6 ____ η β V. Description of the invention (25.) A quartz system glass optical fiber baseline 9 with a core diameter of 50 " m and a metal cladding outer diameter of 125 " m is implemented with a resin with an outer diameter of 250 " m Wrapper. 'Dead adapter 5: Stainless steel (SUS 304). ⑹Seamless tube fiber optic cable 19 A: After annealing, the welded tube of stainless steel (SUS 304) is formed into a uniform structure, and then extended to the outer diameter thickness. 15-sided seamless tube 4, practically known as "thickness 1-sided PV-coated 3A. Flexible tube fiber optic cable 19 B: Flexible pipe 6. Internally controlled 3.0 legs' outer diameter 4.6mm. Material 60 is stainless steel (SUS 304) with a thickness of 0.8mm. The surface of the pipe is covered with PE with an outer diameter of 502 and 3b. Loop clearance Radius r: 47 faces. Forming the loop radius R: 163mm0 Optical fiber core wire 10: In a ballast system with a core diameter of 50 m and a metal cladding outer diameter of 125 m, a glass fiber baseline 9 is implemented with a resin coating of an outer diameter of 250 # m. Adapter 5: stainless steel (SUS 304). The Central Standard of the Ministry of Economic Affairs only co-operates with stamps. 51 As shown in Figures 1 to 5 and Figure 9a, the combination of the adapter 5, seamless fiber optic cable 19 A and flexible tube fiber optic unit 19 B Slowly, because the seamless tube fiber optic cable 19A that implements long-distance wiring on the one hand has high strength, small diameter, light weight and high air tightness, etc., it can tolerate high extension line loads during cable installation, and after installation, High mechanical strength, touch resistance and air tightness. On the other hand, since the flexible tube fiber optic cable 19B connected to the connector for short-distance wiring has high flexibility and high mechanical strength, the paper of the optical communicator has been re-written in the Chinese standard iMCHS) (210x297) (Public waste) 5. Description of the invention (¾.) Λ () Ii 6 device or other cables are easy to connect, and the cable strength at the connection place is also low. In addition, regardless of whether the seamless tube optical fiber cable 19A or the flexible tube optical fiber cable 19B is used, the optical fiber core wire 10 does not closely adhere to the inner wall surfaces of the metal tubes 4, 6; As long as the metal tubes 4 and 6 are not compressed, the optical fiber core wire 10 will not be damaged. Moreover, if the turning radius r of the metal pipes 4 and 6 is designed to exceed the capacity bending radius of the optical fiber mandrel 10 in advance, the optical fiber core wire 10 will not be damaged or damaged due to excessive bending during the operation of the material. Equipment · * Order-Line-# · 经 戒 · 部 屮 m ψ Μ) Staff -ϊ. Printing

Claims (1)

Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 VI. Patent Application Fanyuan 1. A metal tube-clad fiber optic cable, which includes a metal tube and an optical fiber cable with a baseline passing through its internal optical fiber, with a continuous opening at the front end The rear end is open, the inner space of the two openings, and the plug frame protruding from the inner flange of the inner space, has an outer flange contacting the aforementioned inner flange, and a ten-heart hole penetrating through the aforementioned optical fiber electrically wound optical fiber baseline, and supports The front end of the metal tube is located at the front end of the baseline of the optical fiber from the rear end opening side through the central hole of the inner flange to the front end opening collar, and the ferrule is pushed from the rear end opening side to the front opening side. , One end of the compression coil spring contacting the ferrule, and the front end of the other end of the compression coil spring that is coupled to the rear end of the plug frame, has a rear end that can be directly inserted into the larger diameter opening of the front-filled optical fiber, and passes through the opening to This front end has a stopper penetrating through the center hole of the baseline of the optical fiber cable. What is the metal man-clad covered optical fiber cable described in Item 1 of the patent application park, wherein the above-mentioned retaining ring has a coupling protruding from the outer peripheral surface of the front end to the outside; a protrusion and a non-rotation protrusion, the plug frame has an entrance The tying and tying holes of the tying protrusions are opened at the rear end, and the cylindrical protrusions are guided to open from the rear end. The mouth moves toward the holding protrusions in the direction of the front opening, preventing the stop ring from rotating around its center_axis. Sprocket with long holes. 3. The metal tube-coated optical fiber cable as described in item 1 of the patent application park, wherein the aforementioned retaining ring has a system that protrudes from the outer peripheral surface of the front end to the outside. A guide groove extending from the hole to the extending direction. The aforementioned hoe frame has an engaging hole that enters the engaging protrusion, and protrudes from the inner space into the guiding groove, and uses it to guide the movement to the direction of the extending guide groove to prevent the stretch ring. A non-rotating protrusion that rotates around the central axis. --------------------------- Equipment ------ Order ------ (谙 Please read f side note Please fill in this page again for this matter) This paper size is applicable to China National Standard (CNS) A4 specifications (210 X 297 mm) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 * B7 C7 ___D7_ VI. Application scope c. The metal tube covered optical fiber cable described in the first item of the scope, wherein the metal tube of the optical fiber cable is a spiral coil of a metal strip body having a substantially S-shaped cross section, and is connected to the first, second, and third parts with attention. In the case of a three-pitch member, the annular groove is formed in the annular groove opened in the second member pipe, and the annular groove is protruded in a direction protruding from the pipe axis of the first member, and the annular groove is opened outside the second member pipe. , To withstand protruding to the tube close to the 3rd member .......................: Axial end state, the metal body is made into a flexible tube that engages the spiral coil. 5. · A metal tube-clad optical fiber cable, which includes a flexible metal tube and a first optical fiber cable having an optical fiber baseline passing through the metal tube. The optical fiber cable has a continuous opening to the front end, a rear end opening, two openings, and an inner space protruding from the opening. The plug frame of the inner space C flange has an outer flange contacting the inner flange and a central hole penetrating the optical fiber baseline of the first optical fiber cable, and supports a flexible metal tube. Pass from the rear end opening side. Pass the collar of the inner flange center hole to the front end opening side, push the collar from the rear end opening side to the front end opening side, and one end contacts the compression coil spring of the ferrule, combined with The rear end of the plug frame bears the front end of the other end of the compression coil spring, and has a rear end that can enter a larger diameter opening of the first optical fiber cable, and has a retaining ring that passes from the opening to the front end and penetrates the center hole of the baseline of the first optical fiber cable. One end is fixed to the other end of the flexible metal tube of the first optical fiber cable, and the optical fiber base line passing through the metal tube has an intermediate adapter penetrating through the center hole, and one end is fixed to the middle. His end connector seamless metal tube, and through its interior, the optical baseline and the second optical fiber cable is connected by an optical fiber line group. (Please read the precautions on the back before writing this page). Binding. Ordering. This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm) A7 B7 C7 _D7_ VI. Patent Application Fan Garden 6 . As described in Item 5 of the patent application, the metal tube is coated with the optical fiber cable, 'The flexible metal tube of the first optical fiber cable is a spiral coil of a metal strip with a S-shaped cross section. In the case of three-pitch members connected to the first, second, and third parts, the ring-shaped end protruding in the annular groove opened in the second member pipe to the direction of disengaging from the shaft axis of the first member is opened in the second member. The annular groove outside the component tube receives a state of the annular end protruding toward the axis direction of the third component tube. (Please read the precautions on the back before filling this page)-Binding and binding.-Yarns • Printed by the Central Consumers Bureau of the Ministry of Economic Affairs, Consumer Cooperatives This paper is sized to the Chinese National Standard (CNS) A4 (210 X 297) %)