JP2015210997A - Modular plug built-in plug assembly and modular connector built-in connector assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plug assembly which allows for easy assembling work of a modular plug in a plug case.SOLUTION: A plug assembly incorporates the modular plug 13 of a standardized communication cable connector, and includes a waterproof plug case (barrel 4, end bell 1, cable packing 8, and the like), and plug fixing means for fixing the modular plug 13 in the plug case. This plug fixing means has a front holder 12 engaging with the outer surface of the modular plug 13 from the coupling surface (front) side, and a rear holder 11 engaging with the outer surface of the modular plug 13 from the cable (rear) side. The modular plug 13 is held by these front holder 12 and rear holder 11.

Description

  The present invention relates to a plug assembly having a waterproof function and incorporating a modular plug of a standardized communication cable connector. In particular, the present invention relates to a plug assembly that can easily perform the work of incorporating a modular plug into a plug case.

  Internationally standardized as RJ-45, RJ-11, etc., as a cable connector for data communication such as Ethernet (registered trademark), which is a globally popular LAN standard, and indoor equipment connection in telephones Connector exists.

  FIG. 13 is a diagram published as FIG. 10 of Patent Document 1, and is a schematic exploded perspective view of the modular jack 20 and the modular plug 30 of the standardized RJ-45. As shown in the figure, the pin electrode 31 of the modular plug 30 is formed by a plate piece extending in the insertion direction, and the pin electrode 24 of the modular jack 20 is formed by a wire extending in the insertion direction. These pin electrodes 31 and 24 are arranged in the groove part 34 on the modular plug 30 side and the groove part 27 on the modular jack 20 side.

  On the upper surface of the modular plug 30, a lock lever 32 having a lock step portion 33 is attached. The lock lever 33 is formed as an elastic lever that cantilevered upward from the upper surface of the main body 36 of the modular plug 30. The lock step portion 33 is formed in a step or edge shape that protrudes to the left and right outside in the width direction at the lower portion of the lock lever 32 (portion close to the main body 36). On the other hand, the modular jack 20 is formed with a fitting hole portion 21 into which a distal end portion of the modular plug 30 including the lock lever 32 is fitted. A concave step portion 26 to which the above-described lock step portion 33 is locked is formed at the upper portion of the fitting hole portion 21.

  When the modular plug 30 is properly inserted into the modular jack 20, the lock step portion 33 of the modular plug 30 is locked to the concave step portion 26 of the modular jack 20. When pulling out the modular plug 30 from the modular jack 20, the lock lever 32 is pushed down (in the direction approaching the plug body 36), the lock step portion 33 is removed from the concave step portion 26, and the modular plug 30 is pulled out.

  In the figure of this patent document 1, the lower surface 37 (surface on the side opposite to the lock lever) of the plug main body 36 is drawn flat, but in many modular plugs currently supplied to the market, the rear side of the lower surface 37 ( A step portion 38 (indicated by a one-dot chain line) is formed on the counter electrode side.

  Patent Document 2 discloses an outdoor waterproof connector that incorporates an RJ-45 connector and an optical cable connector.

JP 2012-53524 A JP 2009-284014 A

  An object of the present invention is to provide a plug assembly or the like that facilitates the work of incorporating a modular plug into a plug case.

  The plug assembly incorporating the modular plug of the standardized communication cable connector of the present invention includes a waterproof plug case, plug fixing means for fixing the modular plug in the plug case, and connected to the modular plug. Connecting means to a jack assembly in which a modular jack of a standardized communication cable connector is housed in a waterproof jack case, the plug case housing the plug fixing means, and the jack assembly. A cylindrical barrel having a recess opened on the coupling surface side, a cylindrical end bell connected to the cable side of the barrel, and an outer surface of the cable extending from the modular plug housed in the end bell Cable plug, wherein the plug fixing means comprises the modular A front holder engaged with the outer surface of the lug from the coupling surface side, and a rear holder engaged with the outer surface of the modular plug from the cable side, and the modular plug is connected to the longitudinal direction of the cable by the front holder and the rear holder. It is characterized by being sandwiched between.

  Since the modular plug is sandwiched between the front holder and the rear holder in the longitudinal direction of the cable and fixed in the barrel, assembly is easy. In the present specification, the connector side of the mating partner in the longitudinal direction of the cable is referred to as the coupling surface side or the front side, and the side on which the opposite cable extends is referred to as the cable side or the rear side. When the pinching type plug fixing means as in the present invention is used, a pin / socket type plug case (barrel, end bell, clamp nut, etc.) in the connector of the power cable can be used as it is. In such a case, it is advantageous in terms of component costs.

  The communication cable according to the present invention may transmit either an electric signal or an optical signal. The parts such as the barrel and the end bell in the claims of the present application are not limited to the shape / action of the embodiment, and are not limited by the shape / action of the product from which the name is derived.

  In the plug assembly with built-in modular plug of the present invention, the rear holder has a cylindrical shape having an inner hole, and the inner hole has a dimension that allows the modular plug to pass from the cable side to the coupling surface side. And passing the modular plug from the cable side to the coupling surface side through the inner hole of the rear holder, and then engaging the front holder from the coupling surface side of the modular plug, and then connecting the rear holder to the cable. It is preferable that the modular plug and the front holder are engaged from the side and the modular plug is sandwiched between the holders in the longitudinal direction of the cable.

  With the cable attached to the modular plug, the rear holder can be fitted on the outer periphery of the cable on the rear side of the modular plug. Therefore, even after connecting the cable to the modular plug, the waterproof case can be attached to the modular plug without disconnecting the connection.

  In the present invention, the front holder is formed with a movement prevention locking portion toward the coupling surface side of the modular plug and a movement prevention locking portion toward the coupling surface side with respect to the barrel. The movement prevention locking part to the cable side of the modular plug and the movement prevention locking part to the cable side with respect to the barrel can be formed. The modular plug is formed with a locking step portion that is a locking means for engagement with the modular jack, and a locking portion for preventing the modular plug from moving to the cable side is formed on the rear holder. It is preferable to contact the lock step.

  The shape and dimensions of the locking step of the modular plug are determined with high accuracy, and there is little variation in the shape and dimensions of the modular plug manufacturer. If such a portion is used as a positioning reference point, the position and posture of the modular plug in the plug assembly can be set with high accuracy. Therefore, the modular plug and the modular jack in a state where the plug assembly is connected to the jack assembly. Good connection (conduction) can be secured.

  In the present invention, the rear holder may be formed with a tongue that protrudes in a tongue shape toward the coupling surface, and the tongue may be inserted into the inner hole of the front holder. And the movement prevention latch part to the cable side of the said modular plug can be formed in the front-end | tip of the said tongue part. Further, the tongue portion of the rear holder can be brought into the unlocked state by pushing the lock lever toward the modular plug body. As will be described later, the unlocked state can be maintained more reliably by the tip 11p of the rear holder tongue 11m hitting the lock step 13d of the lock lever 13b.

In this case, since the lock between the modular plug and the modular jack is in a released state, both can be attached and detached. Then, the connection and fixation of both are performed between the plug assembly and the jack assembly. It is also possible to obtain a certain frictional contact between the rear holder and the front holder by the elastic force of the lock lever, and it is possible to temporarily fix both holders and the modular plug, and they are inadvertently separated during assembly work. The work can be done smoothly.
In this case, the tongue of the rear holder is inserted into the first side of the inner hole of the front holder, and the tongue of the rear holder is between the second side of the inner hole of the front holder. It can also be said that the modular plug is sandwiched in a direction crossing the longitudinal direction of the cable.

  In the present invention, a movement preventing locking portion to the cable side of the rear holder with respect to the barrel is formed on the elastic piece portion, and by bending the elastic piece portion, the rear holder is locked to the barrel. It is preferable to be released. In this case, the rear holder and the barrel can be assembled and disassembled with a simple operation.

  In another plug assembly of the present invention, the cable packing has a slit connected to the outer periphery from the inner hole, and the slit can be expanded and fitted to the outer surface of the cable. A means for compressing the packing to close the slit and pressing the inner hole against the outer surface of the cable is provided.

  The cable packing can be fitted on the outer periphery of the cable on the rear side of the modular plug while the cable is attached to the modular plug. Therefore, even after connecting the cable to the modular plug, the waterproof case can be attached to the modular plug without disconnecting the connection. Although the cable packing inner hole can be made large enough for the modular plug to pass, the cable packing inner hole is closer to the cable outer diameter and the cable packing inner hole is closer to the cable. It becomes easy to adhere to the outer periphery.

  The modular connector built-in connector assembly of the present invention includes a plug assembly in which a modular plug of a standardized communication cable connector is built in a waterproof plug case, and a modular jack connected to the modular plug is a waterproof jack case. And a connecting means for connecting the two assemblies, wherein the plug assembly is any one of the modular plug built-in plug assemblies described above.

  INDUSTRIAL APPLICABILITY The present invention can provide a plug assembly and the like having an advantage that an operation of incorporating a modular plug into a plug case can be easily performed.

It is a disassembled perspective view which shows the whole structure of the plug assembly with a modular plug which concerns on embodiment of this invention. FIG. 2 is an exploded perspective view showing an enlargement of the periphery of a plug holder of the plug assembly of FIG. 1. FIG. 2 is a partial cross-sectional assembly view of the plug assembly of FIG. 1. 2A is a side cross-sectional view, FIG. 2B is a front view, and FIG. 2C is a CC cross-sectional view in FIG. 2A is a side sectional view, FIG. 2B is a rear view, and FIG. 2C is an enlarged perspective view of a tongue portion. FIG. 2 is a side sectional view of a barrel of the plug assembly of FIG. 1. FIG. 2 is an exploded perspective view showing a state in which the cable packing 8 is fitted to the outside of the cable 14 in the plug assembly of FIG. 1. FIG. 2 is an exploded perspective view showing a state in which a front holder 12 is fitted into a modular plug 13 from the front in the assembly process of the plug assembly of FIG. 1. FIG. 9 is an exploded perspective view showing a state in which the rear holder 11 is fitted into the modular plug 13 from the state of FIG. 8 in the assembly process of the plug assembly of FIG. 1. FIG. 10 is an exploded perspective view showing a state in which the front holder 12, the modular plug 13, and the rear holder 11 are fitted into the inner hole of the barrel 4 from the state shown in FIG. 9 in the assembly process of the plug assembly shown in FIG. FIG. 2 is an exploded perspective view showing a state where the assembly process of the plug assembly of FIG. 1 is completed. FIG. 2 is a partial cross-sectional assembly view of an adapter assembly connected to the plug assembly of FIG. 1. It is the figure published as FIG. 10 of patent document 1, Comprising: It is a schematic exploded perspective view of the modular jack and modular plug of RJ-45.

DESCRIPTION OF SYMBOLS 1; End bell, 1b; Tapered surface, 1c: Inner hole, 1d: Male screw, 1f: Inner hole, 1h; Groove
1j: Screw hole, 1m; Female thread 2; Clamp nut, 2b; Female thread, 2d; Inner hole 3; Coupling nut, 3b; Ring inner ridge, 3c; Inner hole, 3d: Female thread 4; Barrel, 4b; 4d; male thread, 4f; cylindrical surface, 4h; annular outer ridge, 4j;
4p; front inner hole, 4r; stepped portion, 4s; cylindrical inner surface, 4t; annular groove, 4u; ridge 5; set screw, 6; set screw, 7; clamp washer, 7b: inner hole, 7c; 8; Cable packing, 8b; Slit, 8d; Tapered surface, 8f; Inner hole, 8h;
9; plug packing, 10; barrel packing 11; rear holder, 11b; elastic piece, 11d; outer peripheral surface, 11f;
11h; meat stealing groove, 11j; front side, 11m; tongue, 11p; tip,
11r; meat stealing, 11s; meat stealing, 11t; groove, 11v; square hole, 11x; cutout groove 12; front holder, 12b; rear surface, 12d and 12f; cylindrical surface, 12e;
12g; front side, 12k; square hole, 12k1; upper square hole, 12k2; lower square hole, 12n; stepped surface,
12r: Notch groove, 12v: Chamfer,
12t · 12l; side, 12h · 12i · 12j; top and bottom surface 13; modular plug, 13b; lock lever, 13d; lock step, 13f;
13g; Plug body, 13g '; Rear side of plug body, 13h; Insertion part, 13j; Bottom surface, 13m; Step part
14; cable 20; modular jack, 21; fitting hole, 24; pin electrode, 26;
27; groove 30; modular plug, 31; pin electrode, 32; lock lever, 33; lock step,
34; Groove, 36; Plug body, 37; Lower surface, 38; Step
101; End bell, 102; Clamp nut
103; adapter shell, 103b; annular ridge, 103d; male screw,
104 · 105; Set screw, 106; Washer, 107; Cable packing,
108; Plug packing, 109; Set spring, 110; Holder member A,
111; holder member B, 112; modular jack, 112b; recess, 112d; groove
113; cable

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
First, an overall structure of a plug assembly according to an embodiment of the present invention will be described mainly with reference to FIGS. 1 and 2. In the following description, as shown by the arrows in the figure, one side of the cable in the longitudinal direction (the other connector to be connected) is connected to the coupling surface (front side) and the other side (the cable is extended) to the cable side (the cable extension). The direction perpendicular to it is called up / down / left / right. “Upper” is the side of the modular plug 13 with the lock lever 13b.

  This plug assembly incorporates an RJ-45 modular plug 13 which is a standardized communication cable connector. A cable 14 extends from the modular plug 13 to the rear side (cable side) of the figure. A lock lever 13b is attached to the upper surface of the modular plug 13 in the figure. The modular plug 13 is clamped from the front and rear by a front holder 12 and a rear holder 11 as plug fixing means and fixed in the barrel 4.

  The coupling nut 3 has an internal thread 3d on the inner surface, and connects the barrel 4 to an adapter shell 103 on the jack assembly (receptacle) side described later. The end bell 1 is a cylindrical body connected to the cable side of the barrel 4 and accommodates therein a cable packing 8 that is pressed against the outer surface of the cable 14. The cable packing 8 is pressed against the tapered surface 1b (see FIG. 3) in the end bell 1 by the clamp nut 2 through the clamp washer 7 from the rear side to reduce its diameter, and its inner surface 8 is connected to the outer surface of the cable 14. It is in close contact. These barrel 4, end bell 1, cable packing 8, clamp nut 2 and the like constitute a waterproof plug case. The components constituting these waterproof plug cases, except for the cable packing 8, are pin-socket fitting type power connector (part number NJW-28) manufactured and sold by the applicant of the present application. It can be used as it is.

Details of each part will be described below.
As shown in more detail in FIGS. 2 and 3, the modular plug 13 is similar to the modular plug 30 described above with reference to FIG. Here, portions related to the front holder 12 and the rear holder 11 before and after the plug 30 will be described. On the upper surface of the modular plug 13, a lock lever 13b having a lock step portion 13d is attached. The lock lever 13b is formed as an elastic lever that cantilevered upward from the upper surface of the main body 13g of the modular plug 13.

  The lock step portion 13d is formed at the rear end of the root portion 13f, which is a connection portion with the main body 13g of the lock lever 13b, in a step or an edge shape protruding outward in the width direction (see reference numeral 33 in FIG. 13). The front side of the plug body 13g is an insertion portion 13h that is inserted into a fitting hole portion (see reference numerals 20 and 21 in FIG. 13) of the modular jack. The lock step portion 13d is brought into contact with and locked to a concave step portion (see reference numerals 21 and 26 in FIG. 13) at the upper portion of the fitting hole portion of the modular jack. This locking is released when the lock lever 13b is pushed down to the plug body 13g.

  A step portion 13m is formed on the rear side (cable side) of the lower surface 13j (surface on the side opposite to the lock lever) of the plug body 13g.

  Next, the front holder 12 will be described with reference to FIGS. 4, 3, and 2. The front holder 12 has a disk shape that extends vertically and horizontally as a whole, and has a square hole 12k at the center. The rear surface 12b of the front holder 12 is in contact with the front surface of the rear holder 11, which will be described later. A portion below the square hole 12k on the rear surface of the front holder 12 is a stepped surface 12n dug in one step. The step 12m of the lower surface 13j of the modular plug 13 hits the surface 12n, and the modular plug 13 is fixed to the front side. That is, the stepped surface 12n is a movement preventing locking portion formed on the front holder 12 toward the coupling surface side of the modular plug 13.

  The outer peripheral surface of the front holder 12 has two cylindrical surfaces 12d and 12f. Both cylindrical surfaces 12d and 12f are fitted to the inner surface of the barrel 4. The boundary between the cylindrical surfaces 12d and 12f is a step 12e facing forward, and this step 12e is in contact with a step 4r of the barrel 4 to be described later and fixed so that the front holder 12 does not move forward. Is done. That is, the step 12e is a movement prevention locking portion formed on the front holder 12 toward the coupling surface with respect to the barrel 4.

  The front side surface 12g of the front holder 12 faces the end surface of the modular jack (see FIG. 12) on the jack assembly side (a slight gap is opened). As shown in the right part of FIG. 4B, a cutout groove 12r is formed in a part of the cylindrical surface 12d. The notch groove 12r engages with the protrusion 4u (see FIG. 6) on the inner surface of the barrel 4 to position the front holder 12 in the circumferential direction with respect to the barrel 4.

  The square hole 12k of the front holder 12 has a convex shape as shown in FIG. 4B. The upper small hole 12k1 accommodates the lock lever 13b of the modular plug 13 and the tongue 11m of the rear holder 11. A chamfer 12v shown in FIG. 4C is provided on the left and right corners of the rear side of the small hole 12k1 so that the tongue 11m of the rear holder 11 can be easily inserted. The main body 13g of the modular plug 13 is inserted into the lower large hole 12k2. The modular plug 13 is positioned left and right by the side surfaces 12t and 12l of the square hole 12k. Further, the modular plug 13 is vertically positioned by the upper and lower surfaces 12h, 12i and 12j of the square hole 12k.

  Next, the rear holder 11 will be described with reference to FIGS. 5, 3, and 2. The rear holder 11 is a cylindrical member as a whole. Locking ridges 11f extending in the circumferential direction are provided on the upper and lower portions of the outer peripheral surface 11d of the rear holder 11. The locking protrusion 11f engages with the annular groove 4t of the barrel 4 and fixes the rear holder 11 so as not to move rearward. That is, the locking protrusion 11f is a movement preventing locking portion formed on the rear holder 11 with respect to the barrel 4 toward the cable side.

  A meat stealing groove 11h is dug from the rear side to the front side on the inner diameter side of the portion where the locking projection 11f is provided (upper and lower, each about a quarter of the circumference), and is elastic. A piece 11b is formed. The rear holder 11 can be removed from the barrel 4 by sandwiching the upper and lower elastic pieces 11b with fingers and bending the elastic pieces 11b toward the center. When the rear holder 11 is inserted into the correct position to be in a free state, the elastic piece portion 11b springs back, and the locking protrusion 11f enters the annular groove 4t. As can be seen in FIG. 5B, the left and right sides of the elastic piece 11b are subjected to meat stealing 11s. As seen on the left side of FIG. 5B, a notch groove 11x is cut into a part of the outer peripheral surface. The notch groove 11x engages with the protrusion 4u (see FIG. 6) on the inner surface of the barrel 4 to position the rear holder 11 in the circumferential direction with respect to the barrel 4.

  At the upper part of the front side surface 11j of the rear holder 11, a tongue portion 11m protruding to the front side is provided. As shown in FIG. 3, the tongue 11m is inserted between the modular plug 13 and the upper surface 12h of the upper corner hole 12k1 (see FIG. 4) of the front holder 12. The tip 11p of the tongue portion 11m shown in FIG. 5C is in contact with the lock step portion 13d of the modular plug 13 and is fixed so that the modular plug 13 does not move rearward. That is, the tip 11p of the tongue portion 11m is a locking portion formed on the rear holder 11 to prevent the modular plug 13 from moving to the cable side. The corner steal 11r at the tip of the tongue 11m is for avoiding interference with the modular jack.

  A square hole (inner hole) 11v passes through the center of the rear holder 11 in the front-rear direction. The main body 13g of the modular plug 13 enters the square hole 11v. The modular plug 13 is positioned in the left-right direction by fitting the left and right surfaces of the square hole 11v with the left and right surfaces of the modular plug body 13g. A groove 11t is dug in the upper surface of the square hole 11v so as to penetrate in the front-rear direction. The groove 11t is also dug into the lower portion of the tongue portion 11m. The lock lever 13b of the modular plug 13 enters the groove 11t.

  As shown in FIG. 3, the height of the square hole (inner hole) 11v of the rear holder 11 is sufficiently higher than the height of the modular plug 13, and in the state where the front holder 12 does not exist, The modular plug 13 can be passed from the rear side (cable side) to the front side (coupling surface side) in the hole 11v. Therefore, the rear holder 11 can be externally fitted to the outer periphery of the cable 14 on the rear side of the modular plug 13 with the cable 14 attached to the modular plug 13.

  In this embodiment, the tongue 11m of the rear holder 11 inserted into the first side (upper surface 12h) of the inner hole of the front holder 12 is connected to the second side (lower surface 12j) of the inner hole of the front holder 12. The modular plug 13 is sandwiched in a direction (vertical direction) intersecting the cable longitudinal direction. As a result, both the holder and the modular plug can be temporarily fixed, and they are not unintentionally separated during the assembly work, and the work can be performed smoothly.

  Next, the barrel 4 will be described with reference to FIGS. 6, 3, and 2. The barrel 4 is a cylindrical member as a whole. As shown in FIG. 3, the plug packing 9 contacts the rear end surface 4 b of the barrel 4. On the outer peripheral surface of the rear part of the barrel 4, a male screw 4d is cut. The male screw 4d is screwed into a female screw 1m on the front side of the end bell 1 to connect the barrel 4 and the end bell 1. A set screw 5 is provided as a loosening stop after the barrel 4 and the end bell 1 are tightened.

  A cylindrical surface 4f and a front annular outer protrusion 4h are formed on the outer periphery of the barrel 4 on the front side of the male screw 4d. Here, the annular inner protrusion 3b of the coupling nut 3 is engaged so as to be movable in the front-rear direction. The barrel packing 10 hits the front surface of the annular outer protrusion 4h. A protrusion 4j extending in the front-rear direction is formed on the front side of the annular outer protrusion 4h. The protrusion 4j engages with a groove of the adapter shell 103 (see FIG. 12) on the jack assembly side, and the circumferential positioning of the plug assembly and the jack assembly is performed.

  The front inner hole 4p of the barrel 4 receives the jack 112 (see FIG. 12) on the jack assembly side. At the back of the front inner hole 4p, a step portion 4r facing the back side is formed. The step 12e of the front holder 12 abuts on the step 4r, and the front holder 12 is fixed so as not to move forward. The outer peripheral surface 11d of the rear holder 11 is fitted to the cylindrical inner surface 4s on the back side of the step 4r. An annular groove 4t is cut into the inner side of the cylindrical inner surface 4s, and a locking protrusion 11f on the outer surface of the rear holder 11 is engaged with the annular groove 4t so that the rear holder 11 does not move rearward. Secure to. A protrusion 4u for positioning the rear holder 11 in the circumferential direction is formed in the inner hole of the rear holder 11 on the front side of the annular groove 4t. As described above, the barrel 4 uses parts of a pin-socket fitting type connector (part number NJW-28) manufactured and sold by the applicant of the present application as it is. A socket insulator or a pin insulator is fitted to the inner cylindrical surface 4s.

  Next, the configuration around the cable packing 8 will be described with reference to FIGS. 3, 1, and 7. The cable packing 8 is a rubber cylinder. The front side of the outer peripheral surface of the cable packing 8 is a tapered surface 8d, and the rear corner is an inclined rear corner surface 8h. An inner hole 8f extending in the front-rear direction passes through the center of the cable packing 8. The cable 14 passes through the inner hole 8f.

  The cable packing 8 has a slit (cut) 8b extending from the inner hole 8f to the outer peripheral surface. As shown in FIG. 7, by opening the slit 8b, the cable packing 8 can be fitted from the side surface of the cable 14 to the outer periphery thereof. By doing so, the inner diameter of the cable packing inner hole 8f can be made close to the outer diameter of the cable 14 (for example, the cable outer diameter is 6.5 mm to 7 mm and the packing inner hole diameter is 7 mm). The hole 8f is easily adhered to the outer periphery of the cable 14. Also, the cable packing 8 can be easily attached. That is, with such a structure, when the modular plug 13 is attached to the tip of the cable 14, it is not necessary to pass through the cable packing in advance, so that the work procedure of the connection work is reduced. In many cases, it is impractical to remove the modular plug 13 from the cable 14, pass the cable 14 through the inner hole 8 f of the cable packing 8, and then attach the modular plug 13 to the tip of the cable 14 again.

  After the cable packing 8 is attached to the cable 14, the female screw 2b of the clamp nut 2 is screwed into the male screw 1d of the end bell 1, and the cable packing 8 is compressed between the clamp washer 7 and the end bell taper surface 1b. Thereby, the cable packing inner hole 8f is in close contact with the outer periphery of the cable 14, and the slit 8b is also closed tightly, so that sufficient water tightness can be secured.

Next, the assembly method and the overall operation of the plug assembly of this embodiment will be described with reference to the drawings.
First, the modular plug 13 with the cable 14 is connected from the rear side of FIGS. 1 and 3 to the inner hole 2d of the clamp nut 2 → the inner hole 7b of the clamp washer 7 → the taper surface 1b / inner hole 1c · 1f of the end bell 1 → The inner hole 3c of the coupling nut 3 is passed through the square hole 11v of the rear holder 11. As a result, the parts excluding the cable packing 8, the front holder 12, the plug packing 9, and the barrel 4 are arranged in the form shown in FIG.

  Next, the cable packing 8 is fitted to the outside of the cable 14 from the side between the end bell 1 and the clamp washer 7. At this time, as shown in FIG. 7, the slit 8b is expanded, and the cable 14 is passed through the expanded slit 8b.

  Next, the modular plug 13 is inserted into the square hole 12k of the front holder 12 from the rear to the front. At this time, the lock lever 13b of the modular plug 13 is inserted into the small square hole 12k1 on the front holder 12. Thus, the state shown in FIG. 8 is obtained. At this time, as shown in FIG. 3, the lower surface step portion 13m of the modular plug 13 comes into contact with the stepped surface 12n of the front holder 12, and the modular plug 13 does not advance further.

  Next, the main body rear portion 13g ′ of the modular plug 13 is inserted into the square hole 11v of the rear holder 11. At this time, the rear holder tongue 11m is put on the lock lever 13b of the modular plug 13 (the lock lever 13b enters the groove 11t of the tongue 11m), and the same tongue is inserted into the small square hole 12k1 on the front holder 12. Insert part 11m. That is, the tongue 11m of the rear holder 11 is inserted between the lock lever 13b of the modular plug 13 and the upper surface 12h of the square hole 12k1 on the front holder 12. Thus, the state shown in FIG. 9 is obtained.

  At this time, as shown in FIG. 3, the tip 11p of the tongue 11m of the rear holder 11 comes into contact with the lock step 13d of the modular plug 13 and stops (see also FIG. 5C). Further, the lock lever 13b of the modular plug 13 warps upward due to its elasticity and pushes the ceiling of the groove 11t of the tongue portion 11m, and the reaction force causes the lower surface 13j of the modular plug 13 to be the bottom surface of the square hole 12k of the front holder 12. Pressed against 12j. For this reason, the modular plug 13, the front holder 12, and the rear holder 11 are locked by an appropriate mutual frictional force, and then do not fall apart unexpectedly.

  The assembly of the modular plug 13, the front holder 12, and the rear holder 11 described above is extremely easy because it can be assembled by simply operating the parts in the front-rear direction.

  Next, the assembly of the modular plug 13, the front holder 12 and the rear holder 11 is inserted into the inner hole from the rear side of the barrel 4. At this time, as shown in FIG. 3, the notch grooves 12 r and 11 x of the front holder 12 and the rear holder 11 are positioned in the circumferential direction in accordance with the protrusion 4 u of the barrel 4. Thus, the state shown in FIG. 10 is obtained. At this time, the step 12e of the front holder 12 hits the inner step 4r of the barrel 4, and the locking protrusion 11f on the outer surface of the rear holder 11 is fitted into the annular groove 4t of the inner hole of the barrel 4, so that each part is moved in the front-rear direction. Fixed. The barrel packing 10 may be incorporated in the barrel 4 in advance or may be incorporated last.

  In the state shown in FIG. 10, the rear end of the elastic piece 11b of the rear holder 11 protrudes to the rear side of the rear end of the barrel 4, and is elastically deformed by pinching the elastic piece 11b (upper and lower two places). If it is moved inward (see FIG. 3), the locking protrusion 11f on the outer surface of the rear holder 11 is disengaged from the annular groove 4t in the barrel 4 inner hole. As a result, the rear holder 11, the front holder 12, and the modular plug 13 can be removed from the barrel 4.

  After the state of FIG. 10, the coupling nut 3 is fitted to the rear outer periphery of the barrel 4 from the rear side. Next, the female screw 1m of the end bell 1 is screwed into the male screw 4d of the barrel 4, and the set screw 5 (see FIG. 3) is stopped. Thereafter, the cable packing 8 is pushed into the inner hole of the end bell 1, and the outer peripheral tapered surface 8 d of the cable packing 8 is applied to the inner hole tapered surface 1 b of the end bell 1. Then, the female screw 2b of the clamp nut 2 is screwed into the male screw 1d at the rear end of the end bell 1 so that the rear corner surface 8h of the cable packing 8 is pushed by the front inclined surface 7c of the clamp washer 7. Further, a set screw 6 (see FIG. 3) is screwed in, and the clamp nut 2 and the end bell 1 are positioned and fixed. As a result, the plug assembly is assembled as shown in FIGS.

  In this state, the cable packing 8 is compressed from the front and back and from the outside, the inner hole 8f of the cable packing 8 is in close contact with the outer periphery of the cable 14, and the outer peripheral tapered surface 8d of the cable packing 8 is in contact with the end bell inner hole tapered surface 1b. The slit 8b of the cable packing 8 is perfectly closed, and the inside of the end bell 1 is watertight.

  Next, a jack assembly (adapter) connected to the plug assembly of FIG. 1 will be described with reference to FIG. In this jack assembly, a standardized jack 112 is accommodated in an adapter shell 103 or an end bell 101 and is prevented by packings 107 and 108 (which are called waterproof jack cases).

  The jack 112 has a recess 112b into which the modular plug 13 of the plug assembly of FIG. 1 is inserted. A groove 112d for accommodating the base of the lock lever 13b of the modular plug 13 is formed in the upper portion of the recess 112b.

  The outer periphery of the modular jack 112 is positioned and fixed to a holder made up of a holder member A110 and a holder member B111 (the positioning step and unevenness are not shown). The holder is sandwiched between an annular protrusion 103b in the adapter shell 103 and a set spring 109, and is positioned in the front-rear direction and fixed to the adapter shell 103. Thus, the modular jack 112 is positioned and fixed with respect to the adapter shell 103 in the front-rear direction, the vertical direction, and the left-right direction.

  The adapter shell 103 is engaged with the barrel 4 of the plug assembly, and the male screw 103 d is screwed into the female screw 3 d of the coupling nut 3, whereby the adapter shell 103 is connected to the barrel 4 and the coupling nut 3. At this time, the modular plug 13 is fitted and connected to the jack 112.

  Other parts, end bell 101, plug packing 108, cable packing 107, clamp nut 102, washer 106, and set screws 104 and 105 are the same as those of the plug assembly.

The plug assembly incorporating the modular plug of the standardized communication cable connector of the present invention includes a waterproof plug case, plug fixing means for fixing the modular plug in the plug case, and connected to the modular plug. Connecting means to a jack assembly in which a modular jack of a standardized communication cable connector is housed in a waterproof jack case, the plug case housing the plug fixing means, and the jack assembly. A cylindrical barrel having an inner hole opened on the coupling surface side, a cylindrical end bell connected to the cable side of the barrel, and a push on the outer surface of the cable extending from the modular plug housed in the end bell A cable packing to be applied, wherein the plug fixing means comprises the modular plug A front holder that engages from the coupling surface side to the outer surface, and a rear holder that engages from the cable side to the outer surface of the modular plug, and holds the modular plug in the longitudinal direction of the cable by the front holder and the rear holder. It is a thing to do.

Claims (13)

A plug assembly incorporating a standardized modular plug of a communication cable connector,
A waterproof plug case,
Plug fixing means for fixing the modular plug in the plug case;
A connection means with a jack assembly in which a modular jack of a standardized communication cable connector connected to the modular plug is accommodated in a waterproof jack case, and
The plug case is
A cylindrical barrel that accommodates the plug fixing means and has a recess opened on the side of the coupling surface with the jack assembly;
A cylindrical end bell connected to the cable side of the barrel; and
A cable packing pressed against an outer surface of a cable extending from the modular plug housed in the end bell;
The plug fixing means is
A front holder engaged with the outer surface of the modular plug from the coupling surface side; and
A rear holder engaged from the cable side on the outer surface of the modular plug;
A modular plug built-in plug assembly, wherein the modular plug is clamped in the longitudinal direction of the cable by the front holder and the rear holder. The rear holder has a cylindrical shape having an inner hole, and the inner hole has a dimension that allows the modular plug to pass from the cable side to the coupling surface side.
After passing the modular plug from the cable side to the coupling surface side through the rear holder inner hole, the front holder is engaged from the coupling surface side of the modular plug,
2. The modular plug built-in plug according to claim 1, wherein the rear holder is engaged with the modular plug and the front holder from the cable side, and the modular plug is clamped in the longitudinal direction of the cable by both holders. Assembly. The front holder is formed with a movement prevention locking portion to the coupling surface side of the modular plug, and a movement prevention locking portion to the coupling surface side with respect to the barrel,
The movement prevention locking part to the cable side of the modular plug and the movement prevention locking part to the cable side with respect to the barrel are formed in the rear holder. Modular plug built-in plug assembly. The modular plug is formed with a lock step which is an engagement locking means with the modular jack,
4. The modular plug built-in plug assembly according to claim 3, wherein a locking preventing portion for preventing the modular plug from moving toward the cable, which is formed on the rear holder, abuts on the lock step portion.   5. The tongue according to claim 3, wherein the rear holder is formed with a tongue that protrudes in a tongue shape toward the coupling surface, and the tongue is inserted into an inner hole of the front holder. Modular plug built-in plug assembly.   6. The modular plug built-in plug assembly according to claim 5, wherein a locking portion for preventing movement of the modular plug toward the cable is formed at a tip of the tongue.   The modular plug built-in plug assembly according to claim 5 or 6, wherein the tongue portion of the rear holder pushes the lock lever toward the main body side of the modular plug to release the lock. The tongue of the rear holder is inserted into the first side of the inner hole of the front holder;
The said tongue part of the said rear holder clamps the said modular plug in the direction which cross | intersects a cable longitudinal direction between the 2nd sides of the inner hole of a front holder, The any one of Claims 5-7 characterized by the above-mentioned. The plug assembly with a built-in modular plug according to claim 1.   A locking portion for preventing movement of the rear holder toward the cable with respect to the barrel is formed on the elastic piece portion, and the locking of the rear holder with respect to the barrel is released by bending the elastic piece portion. The plug assembly with a built-in modular plug according to any one of claims 3 to 8. The cable packing has a slit connected to the outer periphery from the inner hole, and the slit can be expanded and fitted to the outer surface of the cable.
10. The modular plug built-in plug assembly according to claim 1, further comprising means for compressing the cable packing to close the slit and pressing the inner hole against the outer surface of the cable. 11. . A plug assembly incorporating a standardized modular plug of a communication cable connector,
A waterproof plug case,
Plug fixing means for fixing the modular plug in the plug case;
A connection means with a jack assembly in which a modular jack of a standardized communication cable connector connected to the modular plug is accommodated in a waterproof jack case, and
The plug case is
A cylindrical barrel that accommodates the plug fixing means and has a recess opened on the side of the coupling surface with the jack assembly;
A cylindrical end bell connected to the cable side of the barrel; and
A cable packing having an inner hole pressed against an outer surface of a cable extending from the modular plug housed in the end bell;
The cable packing has a slit connected from the inner hole to the outer periphery, and the slit can be expanded and fitted to the outer surface of the cable.
The plug assembly with a built-in modular plug further comprising means for compressing the cable packing to close the slit and pressing the inner hole against the outer surface of the cable. A front holder engaged with the outer surface of the modular plug from the coupling surface side; and
A rear holder engaged from the cable side on the outer surface of the modular plug;
The modular plug is sandwiched in the longitudinal direction of the cable by the front holder and the rear holder,
The rear holder has a cylindrical shape having an inner hole, and the inner hole has a dimension that allows the modular plug to pass from the cable side to the coupling surface side.
After passing the modular plug from the cable side to the coupling surface side through the rear holder inner hole, the front holder is engaged from the coupling surface side of the modular plug,
12. The modular plug built-in plug according to claim 11, wherein the rear holder is engaged with the modular plug and the front holder from the cable side, and the modular plug is sandwiched between the holders in the longitudinal direction of the cable. Assembly. A plug assembly in which a modular plug of a standardized communication cable connector is built in a waterproof plug case;
A jack assembly in which a modular jack connected to the modular plug is built in a waterproof jack case, and a connecting means for both assemblies;
A modular connector built-in connector assembly comprising:
The connector assembly with a built-in modular connector according to any one of claims 1 to 12, wherein the plug assembly is a plug assembly with a built-in modular plug.

Images