JP4124748B2 - Coaxial plug connector - Google Patents

Description

  The present invention relates to a coaxial plug connector used for connecting a coaxial cable used when transmitting a high-frequency signal or the like such as digital satellite broadcasting.

  Coaxial cables are used for high-frequency signal transmission, such as digital satellite broadcasting, because they are resistant to noise. A coaxial cable is composed of a central conductor (copper wire, etc.), an outer conductor (mesh copper wire, etc.) arranged concentrically with the central conductor, and an internal insulator provided between the central conductor and the outer conductor. (Polyethylene or the like) and a jacket (polypropylene or the like) covering the outer conductor.

  As a coaxial plug connector used for such a coaxial cable connection, a cylindrical electrode is formed at one end and a cable insertion portion (cylindrical shape) is inserted between the outer conductor of the coaxial cable and the inner insulator at the other end. And a contact pin having one end arranged at the center position in the cylindrical electrode of the outer conductor fitting and a connecting portion with the center conductor of the coaxial cable at the other end. A structure in which a contact pin and an external conductor metal fitting are protected by an insulating case is known.

For example, as shown in FIG. 22, the contact pin 201 and the cylindrical electrode (outer conductor shell) 202 are arranged concentrically, and the axial direction of the contact pin 201 and the cylindrical electrode 202 and the axial direction of the coaxial cable C are the same. Many L-type coaxial plug connectors having a structure orthogonal to each other have been proposed (see, for example, Patent Document 1 and Patent Document 2).
JP-A-5-152037 JP 2003-297499 A

  By the way, most of the conventional coaxial plug connectors have a structure that can handle only one size (cable diameter) coaxial cable with one connector. In particular, in a coaxial plug connector having a structure in which the cable insertion portion of the outer conductor fitting is inserted between the outer conductor of the coaxial cable and the inner insulator, the size of the coaxial cable that can be connected is determined by the diameter of the cylindrical cable insertion portion. Therefore, it is impossible to cope with a plurality of types of cable sizes.

  In the coaxial plug connector, a split structure (matching structure) is used as the external conductor metal fitting. However, in such an external conductor metal fitting, the cable insertion portion is adjusted when inserted into the coaxial cable. There is also a problem that a gap occurs in the part.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a coaxial plug connector capable of supporting a plurality of types of cable sizes with one product.

The coaxial plug connector according to the present invention includes an outer conductor fitting in which a cylindrical electrode is formed at one end and a cable insertion portion is formed at the other end between the outer conductor and the inner insulator of the coaxial cable. One end portion (pin body) is disposed at the center position in the cylindrical electrode of the conductor metal fitting, and the other end portion is provided with a connection portion (receiving blade) with the central conductor of the coaxial cable, and the contact pin is connected to the external An internal insulator that retains insulation inside the metal fitting, a fixing member for fixing the coaxial cable to the external metal fitting, and an external insulation case that protects the contact pin and the external metal fitting the provided, is constituted by the outer conductor fitting cable insertion portion can be modified to suit the diameter of the coaxial cables flexible piece (for example a pair of left and right flexible pieces) The exposed portion of the outer conductor exposed by peeling off the envelope of the connection side of the distal end portion of the coaxial cable is arranged at the base portion of the flexible piece, characterized by the flexible piece is covered by the external conductor It is done.

  According to the coaxial plug connector of the present invention, the coaxial plug connector has the outer conductor fitting formed with the cable insertion portion to be inserted between the outer conductor of the coaxial cable and the inner insulator, and the cable insertion portion of the outer conductor fitting is connected to the coaxial cable. Therefore, one product can cope with a plurality of types of cable sizes.

  In the coaxial plug connector of the present invention, the fixing member for fixing the coaxial cable includes a cable fastening portion including a plurality of fastening pieces for fastening the coaxial cable inserted into the cable insertion portion of the external conductor fitting, and the external conductor fitting. It is preferable to provide an annular fitting portion to be fitted. In this way, by fixing the coaxial cable with the cable tightening portion composed of a plurality of tightening pieces, the cable can be fixed again after the cable is fixed. Furthermore, if a fitting part for fitting the external conductor metal fitting is provided in the fixing member, the external conductor metal fitting can be fixed securely and even if the external conductor metal fitting is composed of left and right divided parts. In addition, it is possible to prevent a gap from occurring in the mating portion of the external conductor metal fitting.

  Further, the fixing member may be provided with an external conductor tightening portion for tightening the external conductor facing the end portion of the coaxial cable inserted into the cable insertion portion of the external conductor metal fitting. As described above, when the outer conductor tightening portion is provided in the fixing member, the outer conductor is placed in the outer conductor of the coaxial cable when the gap (the gap between the flexible pieces) generated in the cable insertion portion of the outer conductor fitting is wrapped with the outer conductor of the coaxial cable. Since it can be tightened, the shielding effect can be enhanced.

  In the coaxial plug connector of the present invention, if the spring member for securing the fitting force with the mating connector inserted into the cylindrical electrode is formed integrally with the cylindrical electrode of the external conductor metal fitting, The mating force of the connector is stable, and the reliability of connector connection is improved. In addition, by making the spring member an integrally formed product, it is possible to stabilize the fitting force without increasing the number of parts and the number of assembly steps.

  In the coaxial plug connector of the present invention, if the external insulation case is structured to cover all the parts of the contact pin, the external conductor metal fitting, the internal insulator and the fixing member, even if it receives an impact from the outside, It is possible to prevent parts such as the outer conductor gold and the fixing member from being deformed or damaged. Also, the appearance of the entire connector is improved.

According to the present invention, an external conductor metal fitting in which a cylindrical electrode is formed at one end and a cable insertion part is formed at the other end between the outer conductor and the inner insulator of the coaxial cable, and the outer conductor fitting. In the coaxial plug connector having a contact pin in which one end is arranged at the center position in the cylindrical electrode and the other end is connected to the central conductor of the coaxial cable, the cable insertion portion of the external conductor fitting is coaxial It is composed of a flexible piece that can be deformed according to the diameter of the cable, and the exposed portion of the outer conductor that is exposed by peeling off the outer cover of the coaxial cable connection side is the root of the flexible piece. Since the flexible piece is disposed on the portion and covered with the outer conductor , a single product can correspond to a plurality of types of cable sizes.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an example of a coaxial plug connector of the present invention. FIG. 2 is a longitudinal sectional view of the coaxial plug connector, and FIGS. 3 and 4 are a front view and a bottom view of the coaxial plug connector. 5 and 6 are a sectional view taken along the line X1-X1 and a sectional view taken along the line X2-X2 in FIG. 2 , respectively.

  The coaxial plug connector of this example is an L-type coaxial plug connector including an outer conductor fitting 1, a contact pin 2, a cable fixing member 3, an inner insulator 4 and an outer insulating case 5, and includes a contact pin 2 and a cylindrical electrode 11. And the axial direction of the coaxial cable C are orthogonal to each other (see FIG. 17).

  The external conductor metal fitting 1 is a processed product obtained by processing phosphor bronze or the like into an L shape, and as shown in FIGS. A cylindrical electrode 11 is formed at one end of the external conductor fitting 1. Further, a cable insertion portion 12 to be inserted between the outer conductor C3 of the coaxial cable C and the inner insulator C2 is formed at the other end portion of the outer conductor fitting 1, and the cylindrical electrode 11, the cable insertion portion 12, and the like. Between them is an insulator accommodating portion 13.

  The cable insertion portion 12 is composed of a pair of left and right flexible pieces 12a and 12a that are tapered toward the tip. The flexible pieces 12a and 12a can be deformed according to the diameter of the coaxial cable C to be connected (see FIGS. 19 and 21), and can correspond to a plurality of types of cable sizes. Each flexible piece 12a, 12a is provided with a step 12b for preventing it from coming off. The pair of left and right flexible pieces 12a and 12a are formed by cutting a cylindrical body having a bifurcated structure on the left and right sides with two curved surfaces symmetrical with respect to the divided surface, and removing a portion including the central portion of the cylinder. Or a member formed by press working.

  The cylindrical electrode 11 of the external conductor metal fitting 1 is provided with a plurality of spring pieces 11a by cutting or bending. Each spring piece 11a protrudes to the inside of the cylindrical electrode 11, and when the mating connector 6 (see FIG. 8) is inserted into the cylindrical electrode 11, the spring piece 11a is pressed and the elastic force (restoring force) causes the connector. The fitting force can be stabilized.

  The contact pin 2 is a part obtained by processing phosphor bronze or the like into an L shape. As shown in FIG. 9, one end portion is a pin body 21 for connection with a mating connector, and the other end portion is coaxial. A receiving blade 22 used for connection with the central conductor C1 (see FIG. 19) of the cable C is provided. Three guide pieces 23 for guiding the central conductor C1 of the coaxial cable C into the receiving blade 22 are integrally formed at the tip of the receiving blade 22.

  A convex portion 24 for positioning is integrally formed at a substantially central portion of the contact pin 2, and the internal insulator 4 is connected to the external conductor in a state where the convex portion 24 is fitted into a concave portion 41 of the internal insulator 4 described later. By accommodating in the insulator accommodating part 13 of the metal fitting 1, the pin main body 21 of the contact pin 2 is arranged at the center position in the cylindrical electrode 11 of the external conductor metal fitting 1.

  The cable fixing member 3 is a processed product such as brass, and as shown in FIGS. 10 and 11, the cable fastening portion 32, the fitting portion 33, and the outer conductor fastening portion 34 are integrally formed on the upper side of the base portion 31. Is formed.

  A bendable locking piece 31a is integrally formed at the end of the base portion 31, and the locking piece 31a is bent in a state where the locking piece 31a is inserted into a through hole 51d of the case body 51 described later. Accordingly, the entire cable fixing member 3 can be positioned and fixed with respect to the case main body 51.

  The cable tightening portion 32 is a substantially U-shaped member made up of a pair of left and right tightening pieces 32a, 32a, and upper claws 32b having different height positions at the upper ends of the pair of tightening pieces 32a, 32a. And the lower nail | claw 32c is integrally formed. Each of the upper claws 32 b and the lower claws 32 c is processed into a mountain shape (two peaks) and protrudes toward the inside of the cable fastening portion 32. These upper claws 32b and lower claws 32c are arranged alternately between the left and right fastening pieces 32a, 32a, and the upper claws 32b of one fastening piece 32a and the lower claws 32c of the other fastening piece 32a Are positioned so that the lower claws 32c of one fastening piece 32a and the upper claws 32b of the other fastening piece 32a face each other.

  Furthermore, triangular claws 32d are integrally formed at each of the fastening pieces 32a at two positions on the front and rear sides. These front and rear triangular claws 32d also protrude toward the inside of the cable fastening portion 32.

  The fitting portion 33 is a substantially cylindrical body and has an inner diameter that is equal to or slightly smaller than the outer diameter of the cylindrical portion 13a of the insulating holding portion 13 of the external conductor fitting 1. The fitting part 33 is divided into left and right by a notch 33a machined in the upper center.

  The outer conductor fastening portion 34 is a member composed of a pair of left and right arcuate fastening pieces 34a, 34a, and can fasten the outer conductor C3 exposed at the end of the coaxial cable C as will be described later. The upper ends of the fastening pieces 34a, 34a are cut obliquely with respect to the axial direction of the coaxial cable C.

  The internal insulator 4 is a resin molded product such as polypropylene, and is composed of two symmetrical parts as shown in FIG. The internal insulator 4 is a member that holds the contact pin 2 in a state in which insulation is ensured inside the external conductor fitting 1 and is accommodated in the insulator accommodating portion 13 of the external conductor fitting 1 as shown in FIG. . The internal insulator 4 accommodates the positioning concave portion 41 into which the positioning convex portion 24 of the contact pin 2 is fitted, and the receiving blade 22 and the guide piece 23 at the other end of the contact pin 2. A portion (hollow portion) 42 is provided.

  The outer insulating case 5 is a resin molded product such as polypropylene, and is a member having a matching structure including a case main body 51 and a cover 52 as shown in FIGS. The cover 52 is connected to the case main body 51 via a hinge 53 so as to be freely opened and closed. The case main body 51 can be opened to the outside with the cover 52 open, and the case main body 51 can be opened with the cover 52 closed. Can be covered. As shown in FIG. 2, the outer insulating case 5 used in this example has all the components of the outer conductor metal fitting 1, the contact pin 2, the cable fixing member 3, and the inner insulator 4 with the cover 52 closed. It can be housed inside and all of these parts can be protected.

  Locking hooks 51 f are provided on both sides of the case body 51. The cover 52 is also provided with hooks 52a at positions corresponding to the hooks 51f of the case main body 51, and each cover 52 is in a state where the cover 52 is aligned with the case main body 51 (closed state). The hooks 52 a can engage with the hooks 51 f of the case main body 51 to fix the cover 52 to the case main body 51. Further, by disengaging the hook 51f of the case body 51 and the hook 52a of the cover 52, the cover 52 can be opened.

  The case body 51 is integrally formed with a boss portion 51 a having a shape covering the outer periphery of the cylindrical electrode 11 of the external conductor fitting 1. Above the boss portion 51a, a step portion 51b for positioning the external conductor fitting 1 accommodated in the external insulating case 5 is provided.

At the end of the case body 51 on the cable connection side, a locking portion 51c having a slit-like through hole 51d into which the locking piece 31a of the cable fixing member 3 is inserted and a bending recess 51e is provided. Further, the case body 51 is provided with a support base 51g for supporting the cable fixing member 3.

  The end portion of the case body 51 on the cable connection side and the cover 52 are provided with semicircular cutout recesses 50a and 50b at positions corresponding to each other, and the cover 52 is circular with the cover body 52 aligned with the case body 51. A cable insertion opening 50 is formed. The center of the cable insertion port 50 substantially coincides with the center of the cable insertion portion 12 of the outer conductor fitting 1 positioned and fixed to the case body 51.

  A rib 52b for pressing the outer conductor fitting 1 installed on the case body 51 is integrally formed on the inner wall surface of the cover 52. The rib 52b comes into contact with the upper surface of the insulator housing portion 13 of the external conductor fitting 1 with the cover 52 closed.

  Next, the assembly procedure of the coaxial plug connector having the above structure and the connection of the coaxial cable will be described.

-Assembly of coaxial plug connector-
(1) The external conductor metal fitting 1, the contact pin 2, the cable fixing member 3, the internal insulator 4 and the external insulation case 5 are disassembled and each is made into a single item.

(2) The inner insulator 4 that is symmetrical and divided into two parts is disassembled, and the receiving blade 22 (including the guide piece 23) and the convex portion 24 of the contact pin 2 are respectively replaced with the receiving blade accommodating portion 42 and the concave portion of the inner insulator 4. The internal insulator 4 is assembled in a state matched to 41 .

  (3) In a state where the outer conductor fitting 1 is divided into left and right parts, the inner insulator 4 is accommodated in the insulator accommodating part 13 of one of the divided parts, and then the other divided part is aligned with one of the divided parts. Assemble the external conductor fitting 1. In the assembled state of the external conductor fitting 1, the pin main body 21 of the contact pin 2 is arranged in the center of the cylindrical electrode 11 inside the cylindrical electrode 11 of the external conductor fitting 1.

  (4) The cylindrical portion 13a of the external conductor fitting 1 is inserted into the fitting portion 33 of the cable fixing member 3, and the left and right divided parts of the external conductor fitting 1 are firmly fixed. By inserting the cylindrical portion 13a of the outer conductor fitting 1 into the fitting portion 33 of the cable fixing member 3 in this way, when performing a connecting operation of the coaxial cable C described later, the mating portion (divided parts) of the outer conductor fitting 1 is used. It is possible to prevent a gap from occurring at the mating part). In this fitting operation, the center of the cylindrical electrode 11 of the external conductor metal fitting 1 and the center of the locking piece 31a of the cable fixing member 3 (the center in the orthogonal direction of the base portion 31) are made to coincide.

  (5) With the cover 52 of the outer insulating case 5 opened, the cylindrical electrode 11 of the outer conductor fitting 1 is inserted into the boss portion 51 a of the case body 51, and the outer conductor fitting 1 is inserted into the step portion 51 b of the case body 51. Positioning, and with the locking piece 31a of the cable fixing member 3 inserted into the through hole 51d of the locking portion 51c of the case body 51, the locking portion 51c of the case body 51 is bent toward the folding recess 51e. . As a result, the entire cable fixing member 3 and the external conductor fitting 1 (including the contact pin 2 and the internal insulator 4) are fixed to the case body 51.

-Coaxial cable connection-
(1) As shown in FIG. 17, the outer cover C <b> 4 is peeled off from the distal end portion on the connection side of the coaxial cable C to expose the outer conductor C <b> 3. Such tip portion processing is performed by a gap portion (a pair of flexible wires) generated at the end portion of the outer conductor fitting 1 when the cable insertion portion 12 of the outer conductor fitting 1 is inserted into the coaxial cable C in the operation described later. This is performed to cover the gap between the pieces 12a and 12a with the outer conductor C3.

  (2) The cover 52 of the outer insulation case 5 of the coaxial plug connector that has been assembled is opened, and in this state, the coaxial cable C that has undergone the above-described tip end processing is inserted into the cable insertion portion 12 of the outer conductor fitting 1. Thus, the pair of left and right flexible pieces 12a are inserted between the outer conductor C3 of the coaxial cable C and the inner insulator C2, and the center conductor C1 of the coaxial cable C is inserted into the receiving blade 22 of the contact pin 2. At this time, since the center conductor C1 is guided into the receiving blade 22 by the guide piece 23 at the tip of the receiving blade 22, even if the position of the center conductor C1 with respect to the receiving blade 22 is slightly shifted, the center conductor C1 is received in the receiving blade 22. Easy and reliable insertion. In the state where the coaxial cable C is inserted, the exposed portion of the outer conductor C3 is disposed at the root portion of the pair of flexible pieces 12a and 12a, and the gap between the flexible pieces 12a and 12a is covered with the outer conductor C3. Therefore, the shielding effect can be enhanced.

  (3) With the coaxial cable C disposed at the center of the cable fixing member 3, the pair of fastening pieces 32a, 32a of the cable fastening portion 32 are fastened with a tool such as pliers to fix the coaxial cable C. Further, the pair of fastening pieces 34a, 34a of the outer conductor fastening portion 34 are fastened with a tool such as pliers. 17, 18, and 19 (A) and 19 (B), the upper claw 32 b, the lower claw 32 c, and the triangular claw 32 d of the cable fastening portion 32 are connected to the coaxial cable C as shown in FIGS. The coaxial cable C can be firmly fixed by biting into the jacket C4 or the like. Further, since the coaxial cable C itself is also fixed by the tightening of the outer conductor C3 by the outer conductor tightening portion 34, the fixing of the coaxial cable C is further strengthened. The fastening piece 32a of the cable fastening portion 32 and the fastening piece 34a of the outer conductor fastening portion 34 can be opened outward from the tightened state of FIGS. It is possible to redo.

  (4) After the connection of the coaxial cable C is completed, the cover 52 of the outer insulating case 5 is closed and aligned with the case main body 51, and the hook 52a of the cover 52 is hooked on the hook 51f of the case main body 51 to Secure to the case body 51. And in the state which closed the cover 52 in this way, since all the components of the external conductor metal fitting 1, the contact pin 2, the cable fixing member 3, and the internal insulator 4 are accommodated in the external insulation case 5, an external appearance is favorable. In addition, it is possible to prevent parts such as the external conductor fitting 1 and the cable fixing member 3 from being deformed or damaged even when receiving an impact from the outside.

  Here, in the coaxial plug connector of this example, the pair of left and right flexible pieces 12a and 12a constituting the cable insertion portion 12 of the external conductor fitting 1 can be deformed according to the size (outer diameter) of the coaxial cable. Therefore, it can be easily applied to a coaxial cable having a small outer diameter.

  A specific example will be described. As shown in FIGS. 20 and 21A and 21B, the flexible pieces 12a and 12a of the cable insertion portion 12 are deformed by a tool such as pliers, and a pair of possible After performing the work of adjusting the interval between the flexures 12a, 12a to the diameter of the coaxial cable Cs having a small outer diameter (the inner diameter of the outer conductor Cs3), the above-described coaxial cable connection work (1) to (4) is performed. What is necessary is just to carry out. In this example, since the upper claw 32b and the lower claw 32c having different heights are provided in the cable tightening portion 32, both the upper claw 32b and the lower claw 32c or Since the lower claw 32c bites into the outer sheath Cs4 of the coaxial cable Cs, the coaxial cable Cs can be securely fixed.

  Moreover, since the space | interval of a pair of flexible piece 12a, 12a which comprises the cable insertion part 12 can be adjusted arbitrarily, if it is the range which can deform | transform the flexible piece 12a, 12a, multiple types (3 types) It is possible to apply to a coaxial cable of the above size.

  In the above example, the cable insertion portion 12 is constituted by a pair of flexible pieces (two pieces), but the number of the flexible pieces may be three or more.

  In the above example, the present invention is applied to an L-shaped coaxial plug connector. However, the present invention is not limited to this, and the central axis of the cylindrical electrode and the contact pin and the central conductor of the coaxial cable are connected. The present invention can also be applied to straight coaxial plug connectors in the same direction.

  The coaxial plug connector of the present invention can be applied to a plurality of types of coaxial cables with one product when connecting a coaxial cable used when transmitting a high-frequency signal such as digital satellite broadcasting. Therefore, it can be effectively used for connecting this type of coaxial cable.

It is a perspective view which shows an example of the coaxial plug connector of this invention. It is a longitudinal cross-sectional view of the coaxial plug connector of FIG. It is a front view of the coaxial plug connector of FIG. It is a bottom view of the coaxial plug connector of FIG. It is X1-X1 sectional drawing of FIG. It is X2-X2 sectional drawing of FIG. The top view (A), bottom view (B), back view (C) of the external conductor metal fitting used for the coaxial plug connector of FIG. is there. It is X3-X3 sectional drawing of FIG. It is a perspective view of the contact pin used for the coaxial plug connector of FIG. It is a perspective view of the cable fixing member used for the coaxial plug connector of FIG. It is a longitudinal cross-sectional view of a cable fixing member similarly. It is a horizontal sectional view of the internal insulator used for the coaxial plug connector of FIG. A front view (A), a side view (B), a plan view (C), a bottom view (D), and a rear view (E) showing the external insulation cases used in the coaxial plug connector of FIG. FIG. It is X4-X4 sectional drawing of FIG. It is X5-X5 sectional drawing of FIG. It is a side view which shows the outer insulation case used for the coaxial plug connector of FIG. 1 in a closed state. It is a perspective view which shows an example of the use condition of the coaxial plug connector of FIG. It is a principal part top view which shows an example of the use condition of the coaxial plug connector of FIG. It is principal part sectional drawing which shows an example of the use condition of the coaxial plug connector of FIG. It is a principal part top view which shows the other example of the use condition of the coaxial plug connector of FIG. It is principal part sectional drawing which shows the other example of the use condition of the coaxial plug connector of FIG. It is sectional drawing which shows the example of the conventional coaxial plug connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 External conductor metal fitting 11 Cylindrical electrode 11a Spring piece 12 Cable insertion part 12a Flexible piece 13 Insulator accommodating part 2 Contact pin 21 Pin main body 22 Receiving blade 23 Guide piece 24 Protruding part 3 Cable fixing member 31 Base part 31a Locking piece 32 Cable tightening part 32a Fastening piece 32b Upper claw 32c Lower claw 32d Triangular claw 33 Fitting part 34 External conductor fastening part 34a Fastening piece 4 Internal insulator 41 Recess 42 Receiving blade receiving part 5 External insulating case 50 Cable insertion port 51 Case body 51a Boss part 51b Step part 51c Locking part 51d Through hole 51e Bending recess 51f Hook 51g Support base 52 Cover 52a Hook 52b Rib 53 Hinge part 6 Connector C on the other side C Coaxial cable (thick outer diameter)
Cs Coaxial cable (thin outer diameter)
C1, Cs1 center conductor C2, Cs2 inner insulator C3, Cs3 outer conductor C4, Cs4 jacket

Claims (5)

A cylindrical electrode is formed at one end, and an outer conductor fitting having a cable insertion portion inserted between the outer conductor of the coaxial cable and the inner insulator at the other end, and the center of the outer conductor fitting in the cylindrical electrode A contact pin having one end disposed at a position and a connection with a central conductor of a coaxial cable at the other end, and an internal insulator that holds the contact pin in a state in which insulation is ensured inside the external conductor fitting A fixing member for fixing the coaxial cable to the outer conductor fitting, and an outer insulating case for protecting the contact pin and the outer conductor fitting, wherein the cable insertion portion of the outer conductor fitting has a diameter of the coaxial cable. together is constituted by the possible flexible piece being deformed, the exposed portion of the outer conductor exposed by peeling off the envelope of the connection side of the distal end portion of the coaxial cable is, Disposed at the base portion of the Shiwahen, coaxial plug connector, characterized in that the flexible piece is covered by the external conductor.   The fixing member includes a cable fastening portion including a plurality of fastening pieces for fastening the coaxial cable inserted into the cable insertion portion of the outer conductor fitting, and an annular fitting portion into which the outer conductor fitting is fitted. The coaxial plug connector according to claim 1.   The coaxial according to claim 1 or 2, wherein the fixing member is provided with an outer conductor tightening portion for tightening an outer conductor facing an end portion of the coaxial cable inserted into the cable insertion portion of the outer conductor metal fitting. Plug connector.   The spring member for ensuring the fitting force with the other party connector inserted in the said cylindrical electrode is integrally formed in the cylindrical electrode of the said external conductor metal fitting, The any one of Claims 1-3 characterized by the above-mentioned. The coaxial plug connector described. 5. The coaxial plug connector according to claim 1, wherein all parts of the contact pin, the outer conductor metal fitting, the inner insulator, and the fixing member are covered with the outer insulating case. .

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