JP2001338733A - Coaxial connector plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coaxial connector plug capable of centering in the radial direction by elasticity in only the shaft direction, preventing twisting in the diameter direction of a coil spring giving elasticity, and floating in the shaft direction and in the radial direction. SOLUTION: This coaxial connector plug 2 has a coaxial plug part 4, whose tip is fit and connected to a receptacle 3; a housing composed of a case 42 housing a coaxial plug part 4 so as to project from opening parts 46, 48 at both ends and a cover 43; a centering guide 31 fixed to the coaxial plug 4 positioned within the housing, and in which the surface on the tip side of the coaxial plug part 4 is formed on a conical inclined surface 31 around the coaxial plug part 4 as center; a support stand 45 slidably supporting the base bottom of the centering guide 31 in the diameter direction and housed movably in the shaft direction within the case 42; and a coil spring arranged between the support stand 45 and the bottom surface of the case 42 and energizing the support stand 45 in the shaft direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coaxial connector plug.

[0002]

2. Description of the Related Art A hands-free kit and a device for fixing a mobile phone are provided, which allow a user to talk with the mobile phone without having the mobile phone even when driving, when the mobile phone is carried into a car and used. Have been. FIG.
Denotes a device A such as a hands-free kit and a mobile phone B. The device A is provided with a mounting portion 1A for mounting the mobile phone B on the upper surface of the housing 1, and the mounting portion 1A is provided with a mobile phone. B can be mounted and fixed by placing the back of B. When the mobile phone B is placed and fixed on the mounting portion 1A, the coaxial connector 2 provided on the mounting portion 1A and the receptacle 3 provided on the back of the mobile phone B are fitted and connected, and the coaxial connector 2 is fitted and connected. In the receptacle 3, a circuit for disconnecting the antenna connection part of the wireless communication unit on the mobile phone B side and the antenna on the mobile phone B side and simultaneously connecting the antenna connection part to the coaxial connector 2 side is formed in the receptacle 3. An antenna connection section of the wireless communication section can be connected to the provided antenna via a coaxial cable C connected to the coaxial connector 2.

FIG. 17 shows a state in which a conventionally used coaxial connector 2 and a receptacle 3 have not been fitted and connected. The conventional coaxial connector 2 has a coaxial plug portion 4 fitted in the receptacle 3 and A cable connecting portion 6 for connecting the coaxial cable C to the coaxial post 5 of the coaxial plug portion 4 and a mounting portion 7 for mounting the coaxial connector 2 to the housing 1.

A mounting member 7 is fixed at one end to the outer conductor 9 of the coaxial plug portion 4 and at the other end to a supporting member 8 fixed to the housing 1.
In order to limit the axial displacement of the front end of the coaxial plug portion 4 protruding outside the housing 1, the mounting portion 7 of the coaxial plug portion 4 is provided. Annular member 1 attached near the joint end to
The coil spring 10 is housed in a mounting hole 12 formed in the housing 1, and the member 11 is brought into contact with the inner surface of the housing 1 around the opening of the mounting hole 12, so that the coil spring 10 is coaxial. The plug portion 4 is held so as to be displaceable in the axial direction and the radial direction. Reference numeral 62 denotes a film body for preventing dust and the like from entering the mounting hole 12.

[0005] The coaxial plug portion 4 is composed of a dielectric 13 in which the coaxial post 5 is provided at the center and the external conductor 9 in which the dielectric 13 is provided.

The cable connecting portion 6 has a cylindrical body 22 having a through hole 21 for accommodating a conductor 20 provided in the center of the dielectric 19 of the coaxial cable C. The outer conductor 23 is accommodated. The outer conductor 23 is narrowed down to the cylinder 22 by plastic deformation of the metal ring 24. The cable connecting part 6 has a passage 25 which is integral with the cylindrical body 22 and extends orthogonally to the cylindrical body 22 and extends in the axial direction of the coaxial plug part 4, and connects the conductive case part 26 connected to the through hole 21. The end of the coaxial plug part 4 is fitted and fixed to the conductive case part 26, and the end of the conductor 20 of the coaxial cable C introduced into the conductive case part 26 and the end of the coaxial post 5 are connected. They are electrically connected by soldering or the like.

When the mobile phone B is to be placed at a fixed position on the mounting table 1A of the housing 1 of the device A equipped with the coaxial connector 2 thus configured, the receptacle provided on the back of the mobile phone B The front end of the coaxial plug portion 4 of the coaxial connector 2 fits into a hole 14 formed on the surface of the external electrode body 3 such that the inner diameter gradually increases from the bottom toward the surface opening. The tip of the coaxial plug portion 4 comes into contact with the tapered surface of the hole portion 14 due to the force for pressing B against the mounting table 1A side, but the coil spring 10 causes the coaxial plug portion 4 to swing in the axial and radial directions. Therefore, it is possible to reduce the risk of damage by absorbing the impact of the coaxial connector 2.

When the leading end of the coaxial plug 4 is fitted into the fitting recess 15 provided at the center bottom of the hole 14, the leading end of the movable contact body 16 exposed at the bottom is pushed by the leading end of the coaxial post 5. By moving the movable contact body 16 in the axial direction, the movable spring plate 17 is further moved at the rear end of the movable contact body 16, and the movable contact 17 a of the movable spring plate 17 is separated from the contact surface of the fixed terminal 18. The movable spring plate 17 is connected to the antenna connection of the wireless communication unit of the mobile phone B, and the fixed terminal 18 is connected to the antenna of the mobile phone B. Is connected to the coaxial post 5 of the coaxial plug unit 4 via the movable spring plate 17 and the movable contact body 16, whereby the vehicle is connected to the antenna on the automobile side via the coaxial cable C.

[0009]

The coaxial connector plug 2 of the above-mentioned conventional example is a coil spring 1 having a substantially truncated cone shape.
0 causes floating in the axial direction and the radial direction. However, in such a conventional configuration, the coil spring 10 is deformed to be twisted when the coil spring 10 is bent in the radial direction, so that an excessive load is applied. Coil spring 1 when added
0 may be plastically deformed and may not return to the initial position.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a coil spring capable of radial centering by elasticity only in the axial direction and providing elasticity. An object of the present invention is to provide a coaxial connector plug which realizes a structure capable of floating in an axial direction and a radial direction without being twisted in a direction.

[0011]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a coaxial plug portion for fitting and connecting a distal end portion to a receptacle, and an opening portion on both end surfaces. A housing for housing the coaxial plug portion so as to protrude from the portion, a centering member provided at an intermediate outer peripheral portion of the coaxial plug portion located in the housing, and a base bottom surface of the centering member sliding in a radial direction. A supporting table that is freely supported and accommodated in the housing so as to be movable in the axial direction of the coaxial plug portion, and is disposed between the supporting table and the bottom surface of the housing; The inserted coaxial plug portion is constituted by the coil spring that can be inserted in the axial direction, and the coil spring urges the support base in the axial direction toward the distal end portion of the coaxial plug portion. When the centering member moves in the radial direction when the distal end portion of the coaxial plug portion is fitted and connected to the receptacle and when returning from the fitted connection state to the non-fitted connection state, the centering member The centering member is fitted in the opening of the housing so that the coaxial plug is centered in the opening when returning to the non-fitting connection state. It is characterized by being formed in.

According to a second aspect of the present invention, in the first aspect of the present invention, the centering member is provided integrally with the coaxial plug portion, and a surface portion corresponding to a tip end side of the coaxial plug portion is flattened. A surface around the opening of the housing corresponding to the above is a mortar-shaped concave surface centered on the opening.

According to a third aspect of the present invention, in the first aspect of the present invention, the centering member is provided integrally with the coaxial plug portion, and a surface portion corresponding to the distal end portion of the coaxial plug portion is projected toward the distal end portion. The coaxial plug is formed in a conical shape with the center as the center, and the inner surface around the opening of the housing corresponding to the conical inclined surface is a flat surface.

According to a fourth aspect of the present invention, in the second aspect of the present invention, a flange portion having a diameter larger than a diameter of an opening of the housing into which the centering member is fitted is formed to protrude from a base peripheral portion of the centering member. It is characterized by the following.

According to a fifth aspect of the present invention, in the first aspect of the present invention, the centering member is provided integrally with the coaxial plug portion, and a surface portion corresponding to the distal end side of the coaxial plug portion projects in the distal direction. The coaxial plug portion is formed in a polygonal pyramid shape with the center at the center, and the inner surface around the opening of the housing corresponding to the inclined surface of the polygonal pyramid shape is a flat surface.

According to a sixth aspect of the present invention, in any one of the second to fifth aspects of the present invention, an R surface is formed on an inner edge of the opening located inside the housing at an opening of the housing from which a tip end of the coaxial plug projects. It is characterized by having been formed.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects of the present invention, the center portion and the housing portion forming the opening from which the distal end portion of the coaxial plug portion projects are formed of metal. It is characterized by the following.

According to another aspect of the present invention, there is provided a housing having a coaxial plug portion for fitting and connecting a distal end portion to a receptacle, and housings having openings at both end surfaces and accommodating the coaxial plug portions so as to protrude from the opening portions at both ends. A centering member provided at least on an outer peripheral portion of the coaxial plug portion located in the housing, and a support base integrally provided at a lower portion of the centering member and restricted in a lateral direction in the housing,
The coaxial plug is disposed between the support base and the bottom surface of the housing, and the coaxial plug portion penetrating through the support base is constituted by the coil spring penetrating in the axial direction. The support base is urged in the axial direction toward the distal end of the portion, and when the distal end of the coaxial plug portion is fitted to the receptacle and is connected to the receptacle, non-fitting connection is performed. When returning to the state, when the centering member moves in the radial direction, the shape of the surface portion where the centering member and the housing are in sliding contact with each other is changed to the opening of the housing when returning to the non-fitting connection state. The coaxial plug portion is formed so as to be centered in the opening by fitting the centering member into the opening.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments. (Embodiment 1) FIG. 1 shows, for example, a coaxial connector plug 2 of the present embodiment provided on a housing 1 side of a device A such as a hands-free kit arranged on an automobile side and a housing of a mobile phone B corresponding thereto. The cross-sectional structure of the receptacle 3 provided on the back is shown.

The coaxial connector plug 2 of this embodiment comprises a coaxial plug portion 4, a cable connecting portion 6, a mounting portion 7, and a centering guide 30 as a centering member.

The coaxial plug portion 4 includes a cylindrical external electrode body 9 and a dielectric 1 housed inside the external electrode body 9 as in the conventional example.
3 and a coaxial post 5 provided at the center of the dielectric 13 so as to be surrounded by the dielectric 13.
The distal end surface of the dielectric 13 is positioned slightly inside the open end of the distal end of the external electrode body 9 and the position of the distal end surface of the coaxial post 5 protruding from this distal end surface is the same as that of the external electrode body 9. Further, four split grooves 27 are formed at equal intervals at the tip of the external electrode body 9 as shown in FIG.

The centering guide body 30 is inserted and fixed to a substantially central portion of the coaxial plug portion 4 in the axial direction. This centering guide body 30 is the same as
And a metal body formed in a substantially conical shape having a surface on the tip end side with an inclined surface 31 with the center as a center, for performing centering guide of the coaxial plug portion 4 described later.

The cable connecting portion 6 has a metal cylindrical body 29 having a through hole 28 for accommodating the dielectric 19 of the coaxial cable C. The distal end of the cylindrical body 29 is tapered to form the coaxial cable C. While press-fitting between the jacket conductor 23 and the insulating jacket 32, the jacket conductor 23 is put on the outer surface of the cylinder 29, and the metal ring 33 is plastically deformed to narrow the cylinder 29 via the insulating tube 34. I have.

The cable connecting portion 6 is formed integrally with the cylindrical body 33, and has a hollow portion 35 which is perpendicular to the cylindrical body 33, has both ends in the axial direction of the coaxial plug portion 4 opened, and communicates with the through hole 28. A case 36 is provided.

The coaxial plug portion 4 is connected to the conductor connection portion 5 provided at one end of the coaxial post 5 through one opening 37 of the case portion 36.
A is made to face the cavity 35, and the opening 37 is closed by the outwardly projecting portion 13a at the end of the dielectric 13 of the coaxial plug portion 4 and further projecting outward from the end of the external electrode body 9. The protruding piece 9 a is fitted to a groove 39 of a fixing portion 38 provided on the outer surface of the case portion 36 and fixed to the case portion 36.

The end of the conductor 20 of the coaxial cable C is soldered to the conductor connection portion 5A facing the cavity 35, whereby the coaxial post 5 is connected to the antenna via the conductor 20 of the coaxial cable C. Connected. The soldering operation in this case is performed from the opening 40 opened on the surface opposite to the opening 37. After the soldering is completed, the opening 40 is closed by the lid 41.

The mounting portion 7 has a bottomed cylindrical case 42 made of synthetic resin or metal, and a bottomed cylindrical metal lid 43 which covers the upper portion of the case 42 in FIG. And a coil spring 44 having a cylindrical outer shape, and a centering guide body 30 fixed to the coaxial plug portion 4.
And a metal support base 45 for slidably supporting the support.

The case 42 has an inward flange 4 on the inner surface near an opening 46 formed at the bottom opposite to the side covered by the lid 43.
7 is projected, and a coil spring 44 is
The coil spring 44 is accommodated by placing one end having a large diameter. The support base 45 is mounted on the other end of the coil spring 44, and moves in the case 42 according to the axial expansion and contraction of the coil spring 44.

The support base 45 has a downwardly-facing peripheral wall 45a protruding from the peripheral edge in FIG. Therefore, even if an oblique force is applied to the support base 45, the support base 45 can be smoothly moved in the axial direction without tilting.

The coil spring 44 and the support base 45 are accommodated in the case 42 by storing one end of the coil spring 44 in a recess 45b surrounded by the side peripheral wall 45a and the plane part of the support base 45.
The coil spring 44 is prevented from moving in the radial direction when it is incorporated into the device, thereby improving the assemblability.

Here, the coaxial plug portion 4 to which the centering guide body 30 is fixed is connected to the opening 46 of the case 42 of the mounting portion 4.
And through the opening 48 on the side of the lid 43 before the connection to the cable connecting portion 6 as described above. That is, the outer diameter of the base of the centering guide body 30 is larger than the inner diameter of the center hole 45c of the support base 45.
The centering guide body 3 is provided on the upper surface of the support 45 around
The bottom of the coaxial plug portion 4 is inserted into the center hole 45c of the support base 45 and the center of the coil spring 44 while coming into contact with the base bottom surface of the case 0, and is brought out of the case 42 through the opening 46 of the case 42. Thus, the connection in the case portion 36 is performed.

In this state, the cover 43 is put on the case 42 so that the coaxial plug 4 is projected outward through the opening 48 of the cover 43, and the inclined surface 31 of the centering guide 30 is inserted into the opening 48. When fitted, the coaxial connector plug 2 of the present embodiment shown in FIG. 2 is completed.

The shape of the hole of the opening 48 of the lid 43 is substantially the same as the cross-sectional shape of the base of the centering guide 30 in plan view. The base bottom surface of the centering guide body 30 is pushed up, and this pushing up displaces the coaxial plug portion 4 in the axial direction toward the tip portion, so that the surface of the connection portion 4 on the mounting portion 7 side contacts the end surface (bottom surface) of the case 42. The centering guide body 3 at the position where the contact and the further movement are restricted.
The 0 inclined surface 31 projects outside the lid 43.

When the coaxial connector plug 2 configured as described above is assembled into the mounting hole 49 of the casing 1 of the apparatus A, the lid 43 is removed from the opening 46 inside the casing 1. The case 42 is inserted into the mounting hole 49 while the front end of the coaxial plug 4 is inserted.

An outward flange 50 is integrally formed on the peripheral surface of the case 42, and an inward flange 51 is integrally provided on the inner surface of the mounting hole 49 so as to correspond to the outward flange 50. Yes,
The lower surface (in FIG. 1) of the outward flange 50 of the case 42 is brought into contact with the inward flange 51. The hole of the mounting hole 49 on the outer side of the housing 1 is formed by cutting and raising the peripheral wall of the lid 43 at predetermined intervals so that the tip can protrude outward.
2 has an inner diameter through which the case 43 is inserted from the outside of the housing 1 into the hole until the tip of the inclined protruding piece 51 hits the upper surface (in FIG. 1) of the inward flange 51. 42. As a result, the coaxial connector plug 2 is inserted into the mounting hole 42 so that the inward flange 51 of the mounting hole 49 is sandwiched between the tip of the inclined protruding piece 52 of the lid 43 and the outward flange 50 of the case 42 in FIG. It will be fixed as shown.

Here, the receptacle 3 provided on the portable telephone B side includes a cover 60 and a cover 60 as shown in FIG.
The main body is composed of a base 61 housed inside the mobile phone B, and is disposed in a mounting hole 53 provided in a case 62 of the mobile phone B. A hole 54 is formed on the surface of the cover 60 so as to face the outer opening of the mounting hole 53 so that the inner diameter gradually increases from the bottom toward the surface opening. Coaxial connector plug 2
Fitting recess 55 for fitting the front end of the coaxial plug portion 4 of FIG.
Spring plate 5 provided on the base 61 side from the hole 55a of
The contact piece 57 provided at the tip of the coaxial plug portion 4 is exposed.
The tip of the is pressed. The movable spring plate 56 has a base fixed to the base 61 and cuts and raises an inverted L-shaped piece at the center thereof.
Is composed. The movable spring plate 56 is provided with a movable contact 58 on the lower surface (in FIG. 4) of its free end, and when the coaxial connector plug 2 is not fitted and connected, the base 6
A wireless communication unit (not shown) connected to the movable spring plate 56 by allowing the movable contact 58 to resiliently contact the contact surface at the tip of the fixed terminal plate 59 fixed to the movable spring plate 56;
The antenna is electrically connected to an antenna connected to the fixed terminal plate 59.

Next, a portable telephone B in which the receptacle 3 is provided on the mounting table 1A of the housing 1 of the apparatus A provided with the present embodiment.
The case of mounting and removing will be described with reference to FIGS.

First, when the mobile phone B is mounted on the mounting table 1A, the mobile phone B is brought to a predetermined position on the mounting table 1A (FIG. 5 (a)), and the mobile phone B is pressed down from above. Move down. At this time, the tip of the coaxial plug portion 4 of the coaxial connector plug 2 first contacts the tapered surface of the hole 54 of the cover 60 of the receptacle 3 (FIG. 6).
(A)) A radial force acts on the coaxial plug portion 4 from the tapered surface, and a downward axial force acts on the coaxial plug portion 4. The downward force pushes the coaxial connector plug 2 downward against the bias of the coil spring 44 (FIG. 5).
(B)) At the same time, the centering guide body 30 slides in the direction of the radial force on the upper surface of the support base 45 while the centering guide body 30 slides its inclined surface against the opening edge of the opening 48 of the lid 43 by the radial force. (FIG. 6B). As a result, the front end of the coaxial plug portion 4 fits into the fitting concave portion 55 along the tapered surface of the hole portion 54 of the cover 60 of the receptacle 3, and the coaxial plug portion 4
Of the plug post 5 comes into contact with the contact piece 57 of the movable spring plate 56 of the receptacle 3 and pushes the contact piece 57 upward in the figure to deflect the movable spring plate 56 about its fixed end, and the free end side Is separated from the contact surface of the fixed terminal plate 59, and the antenna is separated from the wireless communication unit.

When the mobile phone A is further pushed down to the mounting table 1A side of the housing 1 (FIG. 5C), the mobile phone A
Is fixed to a predetermined position of the mounting table 1A by fixing means (not shown), and the contact of the contact piece 57 of the movable spring plate 56 of the receptacle 3 with the tip of the plug post 5 of the coaxial plug portion 4 is maintained. 58 and fixed terminal board 5
9 is kept open from the contact surface.

Next, when the mobile phone A in the locked state is removed from the mounting table 1A of the housing 1, the mobile phone A is lifted upward. At this time, an upward axial force of the coil spring 44 is applied. The coaxial connector plug 2 is shown in FIG.
(A) As shown in (b), it moves upward and returns to the original position. During this removal, a radial force is applied, and the centering guide body 30 slides on the support base 45 so that the inclined surface 31 contacts the lower opening edge of the opening 48 of the lid 43. However, when the pressing force is lost, the centering guide body 30 moves on the support base 45 while bringing the inclined surface 31 into contact with the lower opening edge of the opening of the lid 43 by the axial spring bias of the coil spring 44. After sliding in the center direction, the centering guide 30 is fitted into the opening 48 of the lid 43, and the coaxial plug 4 is moved from the center of the opening 48 to the housing 1 as shown in FIG. It will return to the predetermined position protruding outside. (Embodiment 2) In Embodiment 1, the centering guide body 30 formed in a conical shape is provided with the outer shell electrode body 9 of the coaxial plug portion 4.
In this embodiment, the coaxial plug portion 4 is inserted through the center portion and fixed to the coaxial plug portion 4. In this embodiment, the centering guide body is integrally formed with the metal case 4 of the coaxial plug portion 4. As shown in FIG. 8, the shape of the centering guide body 30 is flat, and the centering guide body 30 slides on the support base 45 in the radial direction. A surface around the opening of the opening 48 inside the lid 43 with which the edge portion slides is formed as a mortar-shaped concave surface 62 centered on the opening 48.

With this configuration, the shape of the centering guide body 30 is simplified, and the coaxial plug portion 4 and the outer shell electrode body 9 can be easily integrated.

The other structure is the same as that of the first embodiment, and the description is omitted. (Embodiment 3) In Embodiment 1, the centering guide body 30 formed in a conical shape is provided with the outer electrode body 9 of the coaxial plug portion 4.
In this embodiment, the coaxial plug portion 4 is inserted into the center portion and fixed to the coaxial plug portion 4. However, in this embodiment, as shown in FIG. And a centering guide body 30 formed integrally therewith.

According to the present embodiment, the number of parts and the number of steps can be reduced by integrating the coaxial plug portion 4 with the outer shell electrode body 9, and the thickness of the lid 43 can be reduced as in the first embodiment. be able to.

The other structure is the same as that of the first embodiment, and the description is omitted. (Embodiment 4) In this embodiment, in addition to the structure of Embodiment 3, a flange 63 is integrally protruded outwardly from the base outer peripheral surface of the centering guide body 30 as shown in FIG. When the non-fitting connection to the receptacle 3 is made, the plane of the flange 63 is brought into surface contact with the plane around the opening 48 inside the lid 43.

According to the structure of the present embodiment, in addition to the advantages of the third embodiment, the abrasion and deformation of the opening 48 can be prevented.

The other structure is the same as that of the first embodiment, and the description is omitted. (Embodiment 5) In Embodiments 1 and 3 and 4, the shape of the centering guide body 30 is conical as shown in FIGS. 11 (a) and (b), but this embodiment is shown in FIGS. 12 (a) and 12 (b). As shown, it is formed in the shape of a polygonal pyramid, and at the time of sliding in the radial direction, it comes into point contact with the opening edge of the opening 48 of the lid 43, so that wear can be reduced.

The other structure is the same as that of the first embodiment as shown in FIG.

The polygonal pyramid may be employed in the structure of the third or fourth embodiment. (Embodiment 6) In Embodiment 6, as shown in FIG. 14, an R surface 64 is formed at an opening edge inside the opening 48 of the lid 43,
Smooth sliding contact between the centering guide body 30 and the inclined surface 31 enables smooth centering.

The other structure is the same as that of the first embodiment, and the description is omitted.

The configuration of the present embodiment may be applied to the second to fifth embodiments.

In the first to sixth embodiments, the centering guide body 30 and the lid 43 are made of metal so that wear and deformation due to repeated contact between the opening 48 of the lid 43 and the centering guide body 30 are prevented. is there. Of course, when the degree of demand for measures against wear and deformation is low, these parts may be replaced with synthetic resin molded articles. (Claim 7) In the first to sixth embodiments, the centering guide body 30 and the support stand 45 are separate bodies. However, in this embodiment, as shown in FIG. It is characterized in that the support base 45 receiving the bias is integrated and a cylindrical portion 30 a through which the coaxial plug portion 4 is inserted is formed integrally at the upper end of the centering guide body 30. Support stand 45
Is stored so that it does not move in the horizontal direction, and the coaxial plug section 4
Of the center is guided by the inclination of the centering guide body 30 including the support base 45 by the coil spring 44.

That is, in the first to sixth embodiments, the coaxial cable C is connected to the coaxial connector plug 2, and the tension by the coaxial cable C is applied to the coaxial connector plug 2, and the centering body 30 slides on the support base 45. However, in the configuration of the present embodiment, the coaxial cable C is connected to the coaxial connector plug 2 as shown in the figure, and the tension is applied by the coaxial cable C in the direction of arrow a shown in the figure. Even if it is applied, the support 45 of the centering guide body 30 holding the coaxial plug portion 4 does not move in the horizontal direction, so that the centering guide body 30 maintains the center position even if the tension of the coaxial cable C is applied. The center position of the coaxial plug section 4 is maintained. In the drawing, α indicates the movable range of the distal end of the coaxial plug 4.

The same components as those of the first to sixth embodiments are denoted by the same reference numerals, and description thereof is omitted.

[0054]

According to the first aspect of the present invention, a coaxial plug portion for fitting and connecting a distal end portion to a receptacle, and openings at both end surfaces, and the coaxial plug portions are housed and arranged so as to protrude from the opening portions at both ends. A housing, a centering member provided in an intermediate outer peripheral portion of the coaxial plug portion located in the housing, and a base bottom surface of the centering member slidably supported in a radial direction and the coaxial plug is provided in the housing. A support that is movably accommodated in the axial direction of the portion, and is disposed between the support and the bottom surface of the housing, and the coaxial plug that passes through the support can be axially inserted. The coil spring is configured to urge the support base in the axial direction toward the distal end of the coaxial plug by the coil spring, wherein the distal end of the coaxial plug is the receptacle. When the centering member moves in the radial direction when the centering member moves in the radial direction when the centering member moves to the non-mating connection state from the mating connection state with respect to the socket, the centering member and the housing slide against each other. When returning to the non-fitting connection state, the centering member is fitted into the opening of the housing so that the coaxial plug portion is centered in the opening. Since there is no load in the direction and no twist in the radial direction, there is an effect that there is no fear of deformation of the coil spring.

According to a second aspect of the present invention, in the first aspect of the present invention, the centering member is provided integrally with the coaxial plug portion, and a surface portion corresponding to a tip end side of the coaxial plug portion is flattened. The surface around the opening of the housing corresponding to the above is a mortar-shaped concave surface centered on the opening, so that the shape of the centering member is simplified, so that the integration of the centering member and the coaxial plug portion can be performed. It will be easier.

According to a third aspect of the present invention, in the first aspect of the invention, the centering member is provided integrally with the coaxial plug portion, and a surface portion corresponding to the distal end portion of the coaxial plug portion is projected in the distal direction. The coaxial plug portion is formed in a conical shape with the center as the center, and the inner surface around the opening of the housing corresponding to the conical inclined surface is flat, so that the coaxial plug portion and the centering member are integrated by processing. The number of parts and man-hours can be reduced, and the thickness of the housing can be reduced.

According to a fourth aspect of the present invention, in the second aspect of the present invention, a flange larger than a diameter of an opening of the housing into which the centering member is fitted is formed to protrude around the base of the centering member. Wear and deformation of the opening can be prevented.

According to a fifth aspect of the present invention, in the first aspect of the present invention, the centering member is provided integrally with the coaxial plug portion, and a surface portion corresponding to the distal end side of the coaxial plug portion projects in the distal direction. The coaxial plug is formed into a polygonal pyramid centered on the center, and the inner surface around the opening of the housing corresponding to the inclined surface of the polygonal pyramid is made a flat surface.
At the time of sliding in the radial direction, point contact is made with the opening edge of the opening of the housing, and wear can be reduced.

According to a sixth aspect of the present invention, in any one of the second to fifth aspects of the present invention, an R surface is formed on an inner edge of an opening inside the housing at an opening of the housing from which a tip end of the coaxial plug projects. Therefore, abrasion and deformation of the opening of the housing can be prevented.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects of the present invention, the center portion and the housing portion forming the opening from which the distal end portion of the coaxial plug portion projects are formed of metal. Therefore, wear and deformation due to repeated contact between the opening of the housing and the centering member can be prevented.

According to a further aspect of the present invention, there is provided a housing having a coaxial plug portion for fitting and connecting a front end portion to a receptacle, and housings having openings at both end surfaces and accommodating the coaxial plug portions so as to project from the opening portions at both ends. A centering member provided at least on an outer peripheral portion of the coaxial plug portion located in the housing, and a support base integrally provided at a lower portion of the centering member and restricted in a lateral direction in the housing,
The coaxial plug is disposed between the support base and the bottom surface of the housing, and the coaxial plug portion penetrating through the support base is constituted by the coil spring penetrating in the axial direction. The support base is urged in the axial direction toward the distal end of the portion, and when the distal end of the coaxial plug portion is fitted to the receptacle and is connected to the receptacle, non-fitting connection is performed. When returning to the state, when the centering member moves in the radial direction, the shape of the surface portion where the centering member and the housing are in sliding contact with each other is changed to the opening of the housing when returning to the non-fitting connection state. The coaxial plug portion is formed so as to be centered in the opening by fitting the centering member into the coil spring. Therefore, there is an effect that there is no fear of deformation of the coil spring, and even if tension is applied by the connected coaxial cable, the support base integrated with the centering guide body holding the coaxial plug portion does not move in the horizontal direction. Therefore, the centering guide body can be maintained at the center position, and as a result, the center position of the coaxial plug portion is maintained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which an embodiment of the present invention is fitted and connected to a receptacle.

FIG. 2A is a top view of the same. (B) is a side view of the same. (C) is a bottom view of the same.

FIG. 3 is a side sectional view showing a state of attachment to a housing of the above.

FIG. 4 is a cross-sectional view of the corresponding receptacle.

FIG. 5 is an explanatory view showing movement in the axial direction at the time of fitting connection to the receptacle according to the first embodiment.

FIG. 6 is an explanatory view showing a fitting connection to the receptacle and a movement in a radial direction at the time of removal from the receptacle.

FIG. 7 is an explanatory view showing an axial movement at the time of removal from the receptacle.

FIG. 8 is a side sectional view of a second embodiment of the present invention in which a part can be omitted.

FIG. 9 is a side sectional view in which a third embodiment of the present invention can be partially omitted.

FIG. 10 is a side sectional view of a fourth embodiment of the present invention in which a part can be omitted.

FIG. 11A is a top view of a conical centering guide body. (B) is a front view of the conical centering guide body.

FIG. 12A is a top view of a polygonal pyramid-shaped centering guide according to a fifth embodiment of the present invention. (B) is a front view of the polygonal pyramid-shaped centering guide body same as the above.

FIG. 13 is a side sectional view of the above, which can be partially omitted.

FIG. 14 is a side sectional view of a sixth embodiment of the present invention, in which a part can be omitted.

FIG. 15A is a side view of a seventh embodiment of the present invention. (B) is a sectional side view of the same. (C) is a top view of the same.

FIG. 16 is an explanatory diagram of a usage example of a coaxial connector plug and a receptacle.

FIG. 17 is a cross-sectional view showing a state of fitting connection with a receptacle of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Coaxial connector plug 3 Receptacle 4 Coaxial plug part 5 Plug post 30 Centering guide body 31 Inclined surface 42 Case 42 Side peripheral wall 43 Cover 44 Coil spring 45 Support stand 45a Side peripheral wall 45b Recess 46.48 Opening

Claims (8)

[Claims] 1. A housing having a coaxial plug portion for fitting and connecting a distal end portion to a receptacle, a housing having openings at both end surfaces and accommodating the coaxial plug portion so as to protrude from the opening portions at both ends, and a housing inside the housing. A centering member provided at an intermediate outer peripheral portion of the coaxial plug portion, and a base bottom surface of the centering member slidably supported in a radial direction and movable in the housing in the axial direction of the coaxial plug portion. And a coil spring that is disposed between the support and the bottom surface of the housing and that allows the coaxial plug portion that has passed through the support to penetrate in the axial direction. A support base is urged in the axial direction toward the distal end of the coaxial plug by the coil spring, and the distal end of the coaxial plug is fitted and connected to the receptacle. When the centering member moves in the radial direction when the centering member moves in the radial direction when returning from the mating connection state to the non-mating connection state, the shape of the surface portion where the centering member and the housing are in sliding contact with each other is changed to the non-mating state. A coaxial connector plug wherein the centering member is fitted into the opening of the housing when returning to the connected state, so that the coaxial plug is centered in the opening. 2. The centering member is provided integrally with the coaxial plug portion, a surface portion corresponding to a tip end side of the coaxial plug portion is flat, and a surface around the opening of the housing corresponding to the flat surface is provided. 2. The coaxial connector plug according to claim 1, wherein said opening has a mortar-shaped concave surface centered on said opening. 3. The coaxial plug portion is provided integrally with the centering member, and a surface portion corresponding to a distal end portion of the coaxial plug portion is formed in a conical shape centered on the coaxial plug portion by protruding toward a distal end portion. The coaxial connector plug according to claim 1, wherein an inner surface around the opening of the housing corresponding to the conical inclined surface is a flat surface. 4. A coaxial connector according to claim 2, wherein a flange portion larger than a diameter of an opening of said housing in which said centering member is fitted is formed to protrude around a base portion of said centering member. plug. 5. A polygonal pyramid centered on said coaxial plug portion, wherein said centering member is provided integrally with said coaxial plug portion, and a surface portion corresponding to a front end portion of said coaxial plug portion protrudes toward the front end portion. 2. The coaxial connector plug according to claim 1, wherein the inner surface around the opening of the housing corresponding to the polygonal pyramid-shaped inclined surface is a flat surface. 6. An inner surface of an opening of the housing, from which a tip end of the coaxial plug portion protrudes, is formed with an R surface at an inner edge of the opening. Coaxial connector plug. 7. A housing portion forming an opening from which a front end portion of the centering member and the coaxial plug portion protrudes is formed of metal. 8. A housing having a coaxial plug portion for fitting and connecting a distal end portion to a receptacle, a housing having openings at both end surfaces, and housing the coaxial plug portion so as to protrude from the opening portions at both ends, and a housing inside the housing. A centering member provided at least on an outer peripheral portion of the coaxial plug portion, a support base integrally provided below the centering member and restricted in a lateral direction in the housing, and the support base and the bottom surface of the housing. And the coil spring is configured so that the coaxial plug part penetrating the support base is penetrated in the axial direction, and the coil spring is directed toward the distal end of the coaxial plug part. The support base is urged in the axial direction, and the leading end of the coaxial plug portion is fitted to and connected to the receptacle and returns from the fitted connection state to the non-fitted connection state. When the centering member is moved in the radial direction, the shape of the surface portion where the centering member and the housing are in sliding contact with each other, and when returning to the non-fitting connection state, the centering member is inserted into the opening of the housing. A coaxial connector plug, wherein the coaxial plug portion is fitted so as to be centered in the opening.