JP5566095B2 - Coaxial cable connector - Google Patents

Description

  The present invention relates to a coaxial cable connector that is attached to an end of a coaxial cable and connects the coaxial cable to a coaxial connector such as a television terminal.

  Conventionally, television terminals installed on the walls of buildings and antenna terminals provided on various receivers have F-type plugs that are coaxial and project on the outer conductor side and are threaded on the outer peripheral surface. It is used.

  And as a coaxial cable connector for connecting a coaxial cable to this kind of F-type plug, a cylindrical shape inserted between an insulating member around the core wire of the coaxial cable and an outer conductor around the insulating member Provided on the side opposite the coaxial cable side of the insertion portion, the flange portion that contacts the outer conductor or a covering member around the outer conductor when the insertion portion is inserted into the coaxial cable, and positions the coaxial cable And a fitting portion that can be fitted (externally fitted) to the outer conductor of the F-type plug.

  In addition, the coaxial cable connector has a fitting portion rotatably fixed to the insertion portion, and can be screwed onto the inner peripheral surface of the fitting portion with a thread formed around the outer conductor of the F-type plug. There are two types: a thread formed on the inner peripheral surface of the fitting part and a threaded part not inserted on the inner peripheral surface of the fitting part, and the outer conductor of the F-type plug inserted into the fitting part. Are known.

  Of these, the former can use the thread formed on the outer conductor side of the F-type plug to fix the coaxial cable firmly to the F-type plug. Since it is necessary to rotate a fitting part at the time of mounting | wearing, it could not be used.

  In other words, since the F-type plug used as a TV terminal or antenna terminal protrudes from the outer conductor side, the F-type plug at the installation location (that is, the wall of the building or the housing of the receiving device). A recess may be formed so as not to protrude outward. However, in this case, if the space around the F-type plug is small, the fitting portion cannot be rotated when the coaxial cable connector is mounted, and thus the former coaxial cable connector cannot be used.

  On the other hand, the coaxial cable connector in which the outer conductor of the F-type plug is inserted into the fitting portion without forming a screw thread on the inner peripheral surface of the fitting portion, so there is no need to rotate the fitting portion. The structure becomes simple, and even if the F-type plug is provided in the recess, it can be easily attached to the F-type plug.

  However, when this type of coaxial cable connector is attached to the F-type plug, only the outer conductor of the F-type plug is inserted into the fitting portion. It becomes easy to come off by (pull) or the like. For this reason, for example, when it is used for connection between a TV terminal and a recording device, a problem such as that the connection has been disconnected at the time of scheduled recording and the recording could not be performed easily occurs, and such a problem may occur. It has been desired to improve reliability so that there is no problem.

  In order to meet this demand, conventionally, a slit is formed on the opening end side of the fitting portion so that the diameter on the opening end side of the fitting portion can be enlarged / reduced. It has been proposed to provide a ring spring around the end side and a slide collar that moves the ring spring in the axial direction of the fitting portion (see, for example, Patent Document 1).

  In addition, according to the proposed coaxial cable connector, the diameter of the opening end side of the fitting portion can be enlarged / reduced, so that the coaxial cable connector is attached to the F-type plug with the opening portion of the fitting portion widened. Then, by reducing the diameter of the opening end of the fitting portion, the coaxial cable connector (and thus the coaxial cable) can be firmly fixed to the F-type plug.

JP 2001-297838 A

  However, the proposed coaxial cable connector has a problem that the configuration is complicated because the ring spring and the slide collar are used to enlarge / reduce the diameter of the opening end of the fitting portion.

  Moreover, since the slide collar is merely for moving the ring spring, the slit formed on the opening end side of the fitting portion cannot be electrically shielded, and noise enters through the slit. There was a thing.

  The present invention has been made in view of these problems, and can fix a coaxial cable firmly to an F-type plug such as a TV terminal or an antenna terminal, and is simple in configuration and reliably prevents noise from entering. An object of the present invention is to provide a coaxial cable connector that can be used.

In order to achieve this object, the invention according to claim 1 is formed in a cylindrical shape, and one open end side is formed so as to be connectable to an outer conductor of a coaxial cable. A connector main body through which the rod-shaped terminal connected to the core wire can be inserted, and a cylindrical fitting provided at the opening end of the connector main body opposite to the coaxial cable, into which a coaxial plug to be connected can be inserted. In a coaxial cable connector comprising a joint portion, wherein the connector body and the fitting portion are made of conductive metal,
The fitting part is formed in a tapered shape whose opening end side opposite to the connector body has a diameter increasing outwardly, and the taper part extends from the opening end side to the central axis of the fitting part. Is divided into a plurality of slits formed along a plurality of slits, so that the opening end side can be reduced in diameter.
Around the fitting portion, it is formed in a cylindrical shape with a conductive metal, along the central axis of the fitting portion from the connector body side to the opening end side where the slit is formed or in the opposite direction. movable slide ring provided it is bidirectionally Te,
Moreover, the slide ring is shorter than the slit of the fitting portion from the opening end opposite to the connector main body toward the connector main body side, and does not overlap the slit of the fitting portion. A plurality of slits are formed .

  Further, the invention according to claim 2 is the coaxial cable connector according to claim 1, wherein the opening end side inner peripheral surface of the fitting portion is threaded on the outer peripheral surface of the coaxial plug. The coaxial cable connector according to claim 1, wherein an engaging protrusion is formed.

  Next, the invention according to claim 3 is the coaxial cable connector according to claim 1 or 2, wherein the slide ring is provided on at least one of an inner peripheral surface of the slide ring and an outer peripheral surface of the fitting portion. Is engaged with the engaging portion on the fitting portion side or the slide ring side at the specific position where the diameter of the fitting portion is reduced by moving to the opening end side of the fitting portion, and the slide ring An engaging projection for positioning the lens is formed.

  According to a fourth aspect of the present invention, in the coaxial cable connector according to the third aspect, the engaging portion formed on the outer peripheral surface of the fitting portion is such that the slide ring is on the opening end side of the fitting portion. When the engagement portion of the slide ring is engaged with the engagement portion of the slide ring, the opening end of the fitting portion expands and contracts and hits the inner peripheral surface of the slide ring to generate a sound. It is formed.

Further, the invention according to claim 5 is the coaxial cable connector according to any one of claims 1 to 4 , wherein the end of the slide ring on the connector main body side is provided around the slide ring. Is provided with a ring cover made of resin.

Further, the invention according to claim 6 is the coaxial cable connector according to any one of claims 1 to 5 , wherein the coaxial cable core wire is crimped into the inner space of the connector body. An insulating member is provided to hold the terminal in a state of protruding into the fitting portion,
On the outer peripheral surface of the insulating member in contact with the inner peripheral surface of the connector main body, a space is formed between the inner peripheral surface of the connector main body at a position corresponding to the crimped portion between the core wire and the rod-shaped terminal of the coaxial cable. A recess to be formed is formed.

The invention described in Claim 7 provides a coaxial cable connector according to any one of claims 1 to 6, wherein the fitting portion, and inserting the coaxial connector into the fitting portion In this case, a leaf spring is provided between the inner peripheral surface of the fitting portion and the outer peripheral surface of the coaxial plug, and biases the outer peripheral surface of the coaxial plug.

  In the coaxial cable connector according to claim 1, the opening end side of the fitting portion opposite to the connector main body is formed in a tapered shape whose diameter increases outwardly, and the tapered portion is the opening end. It is divided into a plurality of slits formed along the central axis of the fitting portion from the side.

  And around the fitting part, it is formed in a cylindrical shape with a conductive metal, along the central axis of the fitting part from the connector body side to the opening end side where the slit is formed or in the opposite direction. A slide ring that is movable in both directions is provided.

  For this reason, according to the coaxial cable connector of the present invention, if the slide ring is moved from the connector main body side to the opening end side where the slit is formed, the opening end side of the fitting portion formed in a tapered shape is formed. If the diameter is reduced and conversely moved from the opening end side to the connector main body side, the opening end side of the fitting portion expands in a taper shape, and the diameter increases.

Therefore, the configuration is simpler and can be realized at a lower cost than the conventional one in which the ring spring and the slide collar are provided in order to enlarge / reduce the diameter on the opening end side of the fitting portion.
In addition, since the slide ring is formed in a cylindrical shape with a conductive metal, when the coaxial cable connector is attached to the coaxial plug and the slide ring is moved to the opening end side of the fitting portion, Not only can the opening end side of the fitting part be reduced in diameter and fixed to a coaxial plug (such as the above-mentioned F-type plug), but the slit formed on the opening end side of the fitting part is surrounded by a slide ring, and the slit It is possible to prevent noise from entering through.
In addition, the slide ring has a plurality of slits that are shorter than the slits of the fitting part and do not overlap with the slits of the fitting part from the opening end opposite to the connector body toward the connector body side. Therefore, when the user moves the slide ring to the opening end side of the fitting portion, the opening of the slide ring is widened and can be moved smoothly, improving operability. .
Also, the slit of the slide ring is shorter than the slit of the fitting part, and does not overlap with the slit of the fitting part, so the opening end of the fitting part divided by the slit is urged from the outside, The opening end of the fitting portion can be reduced in diameter, and the above-described function is not impaired.

  Next, according to the coaxial cable connector of the second aspect, the protrusion that can be engaged with the thread formed on the outer peripheral surface of the coaxial plug is formed on the inner peripheral surface of the fitting end on the opening end side. Therefore, when the coaxial cable connector is attached to the coaxial connector and the slide ring is moved to the opening end side of the fitting portion, not only the opening end of the fitting portion is reduced in diameter, A protrusion formed on the inner peripheral surface of the open end engages with a screw thread formed on the coaxial plug.

  Therefore, according to the coaxial cable connector of the second aspect, when the coaxial cable connector is attached to the coaxial connector, the fitting portion is prevented from being detached from the coaxial connector, and the coaxial cable is connected to the coaxial connector. Can be fixed more firmly.

The protrusion may be formed in an annular shape around the central axis of the fitting portion, but more preferably formed in a spiral shape corresponding to the shape of the thread formed on the outer peripheral surface of the coaxial plug. Good.
And if it does in this way, since a protrusion can be engaged with a screw thread in the substantially whole region, it can prevent more reliably that a coaxial cable connector remove | deviates from a coaxial plug.

  Next, according to the coaxial cable connector according to claim 3, the slide ring is moved to the opening end side of the fitting portion and fitted to at least one of the inner peripheral surface of the slide ring and the outer peripheral surface of the fitting portion. Engagement protrusions for positioning the slide ring are formed by engaging the engagement portion on the fitting portion side or the slide ring side at a specific position where the diameter of the portion is reduced.

  Therefore, when the coaxial cable connector is attached to the coaxial connector, the slide ring is moved to the opening end side of the fitting portion, and the coaxial cable is fixed to the coaxial connector, the slide ring is positioned by the engaging protrusion. The slide ring can be prevented from moving toward the connector body.

  Also, when the coaxial cable connector is attached to the coaxial connector and the slide ring is moved to the opening end side of the fitting portion, noise and vibration are generated when the engagement protrusion engages with the engagement portion. The operator of the ring can detect that the slide ring has been moved to a predetermined fixed position, and the usability can be improved.

  In order to make it possible to confirm the engagement state of the engaging portion with sound in this way, as described in claim 4, the slide ring is moved to the opening end side of the fitting portion, and the engaging protrusion is moved. When engaging with the engaging portion, the opening end of the fitting portion opens by an amount corresponding to the protruding amount of the engaging protrusion (in other words, expands and contracts), and the fitting portion comes into contact with the inner peripheral surface of the slide ring. Thus, it is desirable to form the engaging portion in the vicinity of the opening end where the coaxial plug is inserted so as to generate sound.

Further, according to the coaxial cable connector of the fifth aspect, since the resin ring cover is provided at the end of the slide ring on the connector body side around the slide ring , the user can slide When the ring is moved manually, the ring cover becomes non-slip, and the usability during the slide ring operation can be improved.

  In addition, when the user operates the slide ring, the ring cover electrically insulates the slide ring from the user, so that an electrical signal flows through the outer conductor of the coaxial cable. However, it is possible to prevent the signal from being transmitted to the user and improve safety.

In addition, since the ring cover is provided at the end of the slide ring on the connector main body side, the ring cover can prevent the slit formed in the slide ring from being damaged and the function of the slit described above from being impaired.

Further, in the coaxial cable connector according to claim 6 , an insulating member is provided in the internal space of the connector body, and the rod-shaped terminal to which the core wire of the coaxial cable is crimped is fitted with the insulating member. It is made to hold | maintain in the state protruded in the part.

Therefore, according to the coaxial cable connector of the sixth aspect, when the coaxial cable connector is mounted, the core wire of the coaxial cable and the central conductor of the coaxial plug to be connected are connected via the rod-shaped terminal. Compared with the case where the coaxial cable core wire is directly connected to the center conductor of the coaxial plug by projecting the coaxial cable core wire into the fitting section, Reliability can be improved.

According to the coaxial cable connector of the sixth aspect, the connector on the outer peripheral surface of the insulating member in contact with the inner peripheral surface of the connector main body at a position corresponding to the crimping portion between the core wire of the coaxial cable and the rod-shaped terminal. Since a recess that forms a space with the inner peripheral surface of the main body is formed, by appropriately setting the size of the recess, the transmission impedance generated at the crimped portion between the core wire of the coaxial cable and the rod-shaped terminal It is possible to eliminate the mismatch and prevent the transmission characteristics of the transmission path formed via the coaxial cable connector from deteriorating.

Further, according to the coaxial cable connector of the seventh aspect, the outer peripheral surface of the coaxial plug is attached to the inside of the fitting portion when the coaxial plug such as the F-type plug is inserted. Since the urging leaf spring is provided, the outer conductor of the coaxial plug and the fitting portion can be brought into surface contact to ensure shielding performance.

It is a side view showing the external appearance of the coaxial cable connector of the reference example used as the premise of this invention . It is sectional drawing explaining the internal structure of the coaxial cable connector of a reference example, and its operation | movement. It is a perspective view showing the state which decomposed | disassembled the coaxial cable connector of a reference example . It is sectional drawing showing the structure of the coaxial cable connector of the reference example which provided the leaf | plate spring in the fitting part. It is sectional drawing showing the structure of the coaxial cable connector of the reference example which provided the ring cover around the slide ring. It is explanatory drawing showing the structure of the coaxial cable connector of embodiment to which this invention was applied . It is explanatory drawing showing the structure of the coaxial cable connector of the modification formed in L shape.

Reference examples and embodiments of the present invention will be described below with reference to the drawings.
[Reference example]
1 to 3 are explanatory views showing the configuration of a coaxial cable connector of a reference example as a premise of the present invention , FIG. 1 is a side view showing the appearance of the coaxial cable connector, and FIG. FIG. 2B is a cross-sectional view illustrating a state in which the opening end side of the joint portion is widened, FIG. 2B is a cross-sectional view illustrating a state in which the diameter of the opening end side of the fitting portion is reduced, and FIG. FIG. 3B is a partially broken perspective view showing a state in which the components of the coaxial cable connector are cut along a plane along the central axis.

The coaxial cable connector of the reference example is for connecting the coaxial cable 4 to the F-type plug 2 that constitutes a TV terminal, an antenna terminal, and the like (see FIG. 2A). The connector main body 10 and the plug connection portion 20 for connecting the F-type plug 2 are provided.

  Among these, the connector main body 10 includes a cylindrical insertion portion 12 that can be inserted between the insulating member 6 around the core wire 5 of the coaxial cable 4 and the outer conductor 7 around the insulating member 6. Then, when the insertion portion 12 is inserted into the coaxial cable 4, the outer conductor 7 of the coaxial cable 4 or the covering member 8 around the outer conductor 7 is brought into contact with the rear end side of the insertion portion 12. A flange portion 14 for positioning 12 (and thus the connector main body 10) at the tip of the coaxial cable 4 is formed. In addition, a cylindrical fixing portion 16 for fixing the plug connection portion 20 is formed on the opposite side of the flange portion 14 from the insertion portion 12.

  In addition, the insertion part 12, the collar part 14, and the fixing | fixed part 16 which comprise the connector main body 10 are integrally formed with the electroconductive metal (for example, C3604B). In addition, the inner diameter of the fixing portion 16 is larger than the inner diameter of the insertion portion 12. This is because the insulating member 6 of the coaxial cable 4 inserted into the insertion portion 12 can be inserted into the plug connection portion 20 side.

  On the other hand, the plug connection portion 20 includes a cylindrical fitting portion 22 into which the F-type plug 2 can be inserted, and on the side opposite to the opening end of the fitting portion 22 on the F-type plug 2 side. A wall portion 26 having an insertion hole 24 through which the insulating member 6 of the coaxial cable 4 can be inserted is provided, and the fixing portion 16 of the connector body 10 is provided on the opposite side of the wall portion 26 from the fitting portion 22. A cylindrical fixing portion 28 to be fitted and fixed is projected. In addition, the fitting part 22, the wall part 26, and the fixing | fixed part 28 which comprise the plug connection part 20 are integrally formed with the electroconductive metal (for example, C3604B) similarly to the connector main body 10. FIG. Moreover, the fixing | fixed part 28 and the fixing | fixed part 16 adhere by press fit.

Therefore, in the coaxial cable connector of the reference example , as shown in FIG. 2A, the insulating member 6 extends from the front ends of the covering member 8 and the outer conductor 7 in the central axis direction of the fixing portion 16 and the wall portion 26. The tip of the coaxial cable 4 is processed so as to protrude by the length of the insulating member 6 and the length of the fitting portion 22 from the tip of the insulating member 6, and the insertion portion 12 is insulated from the outer conductor 7 of the coaxial cable. If it is inserted between the members 6, a terminal structure in which the core wire 5 of the coaxial cable 4 is surrounded by the fitting portion 22 can be obtained.

  In this state, if the fitting portion 22 is attached to the F-type plug 2 constituting a TV terminal or the like, the core wire 5 of the coaxial cable 4 is connected to the central conductor of the F-type plug 2 and is coaxial. The outer conductor 7 of the cable 4 is connected to the outer conductor of the F-type plug 2 via the fitting portion 22.

However, the coaxial cable connector is easily detached from the F-type plug 2 only by attaching the fitting portion 22 to the F-type plug 2.
Therefore, in the reference example , the opening end side of the fitting portion 22 is formed in a tapered shape extending outward, and the center of the fitting portion 22 (and thus the coaxial cable connector) is formed on the tapered portion. By forming a plurality of slits 30 along the axis, the opening end side of the fitting portion 22 is radially divided into a plurality from the central axis.

  That is, when the opening end side of the fitting portion 22 is urged from the periphery by dividing the opening end side of the fitting portion 22 into a plurality of portions through the slits in this way, the opening end of the fitting portion 22 is opened. The diameter of the side is reduced so that the fitting portion 22 can be firmly fixed to the outer conductor of the F-type plug 2.

  Then, the inner wall on the opening end side of the fitting portion 22 has a circumferential direction so as to engage with a thread formed around the outer conductor of the F-type plug 2 when the opening end is reduced in diameter. The formed protrusion 32 is provided.

  In addition, a slide ring 40 formed in a cylindrical shape with a conductive metal (for example, C3604B) is provided around the fitting portion 22. The slide ring 40 is connected in the axial direction so as to surround the region from the region where the slit 30 of the fitting portion 22 is not formed to the flange portion 14 in a state where the connector main body 10 and the plug connection portion 20 are connected. The length is set, and the inner diameter is substantially the same as or slightly larger than the outer diameter of a region where the slit 30 of the fitting portion 22 is not formed (region not formed in a tapered shape).

  In addition, a pair of protrusions 42 formed in the central axis direction from the collar part side are provided on the inner wall of the slide ring 40, and these protrusions 42 are engaged with the rear end side of the fitting part 22. Thus, a notch 38 is formed to guide the slide ring 40 so as to be movable toward the opening end side.

  A pair of protrusions 36 and 44 are provided along the circumferential direction on the opening end side outer wall of the fitting portion 22 and the opening end side inner wall of the slide ring 40. When the slide ring 40 is moved to the opening end side of the fitting portion 22, the protrusions 36 and 44 are brought into contact with each other before the slide ring 40 reaches the most distal end of the fitting portion 22. When the rod is further moved to the most distal side, the protrusion 44 gets over the protrusion 36 of the fitting portion 22, and the slide ring 40 is prevented from moving in the reverse direction.

  Further, the inner wall on the rear end side of the slide ring 40 is brought into contact with the rear end of the fitting portion 22 at a position where the tip of the slide ring 40 reaches the opening end of the fitting portion 22. A protrusion (protrusion) 46 that prevents movement toward the distal end side is provided.

According to the coaxial cable connector of the reference example configured as described above, when the slide ring 40 is moved to the opening end side of the fitting portion 22, the outer peripheral surface on the opening end side of the fitting portion 22 is moved by the slide ring 40. When it hits the inner peripheral surface of the slide ring 40, the portion of the fitting portion 22 divided by the slit 30 is displaced toward the central axis, and the diameter of the fitting portion 22 on the opening end side is reduced.

  Then, when the slide ring 40 is moved to the most advanced position where the protrusion 44 of the slide ring 40 gets over the protrusion 36 of the fitting portion 22, the slide ring 40 is positioned by the engagement of the protrusions 44 and 36. Thus, the slide ring 40 is prevented from moving to the flange portion 14 side and the opening end side diameter of the fitting portion 22 is increased.

Thus, according to the coaxial cable connector of the reference example , the diameter on the opening end side of the fitting portion 22 can be enlarged / reduced only by the slide ring 40. The configuration becomes simple and can be realized at low cost.

  Further, since the slide ring 40 is formed of a conductive metal in a cylindrical shape, the coaxial cable connector is attached to the F-type plug 2 and the slide ring 40 is moved to the opening end side of the fitting portion 22. In this case, not only can the opening end side of the fitting portion 22 be reduced in diameter to be firmly fixed to the F-type plug 2, but the slit 30 formed on the opening end side of the fitting portion 22 can be moved by the slide ring 40. It is possible to prevent noise from entering through the enclosure and the slit 30.

Further, in the coaxial cable connector of the reference example , in order to position the slide ring 40 when the slide ring 40 moves to the tip position on the opening end side of the fitting portion 22, the opening end side outer wall of the fitting portion 22 and On the opening end side inner wall of the slide ring 40, protrusions 36 and 44 that can be engaged with each other are provided.

For this reason, according to the coaxial cable connector of the reference example, the coaxial cable 4 is attached to the F-type plug and the slide ring 40 is moved to the opening end side of the fitting portion, whereby the coaxial cable 4 is connected to the F-type connector. When fixed to the plug 2, the slide ring 40 can be positioned at a fixed position to the F-type plug 2 by engaging the pair of protrusions 36 and 44.

  Further, when the protrusions 36 and 44 are engaged with each other in this manner, the protrusion 44 on the slide ring 40 side gets over the protrusion 36 on the fitting part 22 side, so that the open end of the fitting part 22 is obtained. Spreads outward and the ridge 36 abuts against the inner wall of the slide ring 40, so that sound and vibration are generated. For this reason, the operator of the slide ring 40 can detect that the slide ring 40 has been moved to the most advanced position by sound or vibration, and the usability can be improved.

Here, for example, as shown in FIG. 4A, in the fitting portion 22, the tubular portion on the rear end side where the slit 30 is not formed is provided in the fitting portion 22 with an F-type plug 2 or the like. When the coaxial plug is inserted, a leaf spring 50 that urges the outer peripheral surface of the coaxial plug may be provided.

  In this way, the leaf spring 50 allows the outer conductor of the coaxial plug and the fitting portion 22 to be in surface contact with each other to ensure a shielding property, and the urging force of the leaf spring 50 allows the fitting. The portion 22 can be firmly fixed by the coaxial connector.

In this case, in the leaf spring 50, for example, as shown in FIG. 4B, a number of substantially parallel slits are formed in a metal plate serving as a spring material, and one plate portion between the slits is formed. It is preferable to use a metal plate that is press-molded so as to protrude in one direction and wound in the slit arrangement direction so that the protruding direction is inside .
Further, for example, as shown in FIG. 5, a ring cover 60 made of a synthetic resin (for example, soft PVC) is provided on the outer peripheral surface of the slide ring 40 on the rear end side. Thus, the slide ring 40 may be operated.

  In this way, when the slide ring 40 is moved, the user does not need to touch the slide ring 40 directly, so even if an electric signal flows through the outer conductor of the coaxial cable, the signal is used. Can be transmitted to the person, and safety can be improved.

  When the ring cover 60 is provided in this way, as shown in FIG. 5, a protrusion (in the drawing, formed in the circumferential direction) for positioning and fixing the ring cover 60 on the outer peripheral surface on the rear end side of the slide ring 40. 48).

Further, the axial length of the ring cover 60 is determined by, for example, attaching the fitting portion 22 to a television terminal (F-type plug 2) provided in a concave portion of a wall surface of a building as shown in FIG. When the slide ring 40 is moved to the opening end side of the fitting portion 22, the ring cover 60 may be appropriately set according to the place where the coaxial cable connector is used so that it does not hit the wall surface of the building. .
[Embodiment]
Next, in the above-described reference example, the slide ring 40 is simply formed in a cylindrical shape, but in the present invention, the coaxial cable is included in the slide ring 40 as in the coaxial cable connector of the embodiment shown in FIG. 4 is shorter than the slit 30 of the fitting portion 22 from the opening end on the opposite side to the connector main body 10 to which the connector 4 is connected, and the slit of the fitting portion 22 is shorter than the slit 30 of the fitting portion 22. A plurality of slits are formed so as not to overlap with 30 .

6A is a side view showing the appearance of the coaxial cable connector of the embodiment to which the present invention is applied , and FIG. 6B is a cross-sectional view showing the internal configuration thereof.
And if it does in this way, when a user moves the slide ring 40 to the opening end side of the fitting part 22, the opening of the slide ring 40 will spread a little and the slide ring 40 can be moved smoothly. As a result, operability can be improved.

Further, since the slit 41 of the slide ring 40 is shorter than the slit 30 of the fitting portion 22 and does not overlap with the slit 30, it fits in the same manner as the slide ring 40 of the reference example in which the slit 41 is not provided. Each projecting piece divided by the slit 30 in the joint portion 22 can be urged from the outside to reduce the diameter of the opening end of the fitting portion 22 and close the slit 30 formed in the fitting portion 22. The inside can be shielded.

Further, in the coaxial cable connector of the present embodiment , the slide ring 40 is provided with a ring cover 60, but this ring cover does not block the slit 41 (on the coaxial cable 4 side of the slide ring 40 ( That is, it is provided at the end of the connector main body 10 side.

In addition, the coaxial cable connector of the reference example shown in FIGS. 1 to 5 has a structure in which the core wire 5 of the coaxial cable 4 is directly projected into the fitting portion 22, but the coaxial cable of the embodiment shown in FIG. In the connector, the axial length of the connector main body 10 formed in a cylindrical shape with a metal material is made longer than that shown in FIGS. 1 to 5, and the insulating member 65 is provided in the internal space. And a structure in which the tip of the rod-shaped terminal 70 is protruded into the fitting portion 22 as a so-called center conductor by holding the rod-shaped terminal 70 to which the core wire 5 of the coaxial cable 4 is crimped via the insulating member 65. It has become.

Therefore, according to the coaxial cable connector of the embodiment shown in FIG. 6, when the coaxial cable connector is mounted, the core wire 5 of the coaxial cable 4 and the central conductor of the coaxial plug to be connected are connected to the rod-shaped terminal 70. The core wire 5 of the coaxial cable 4 can be prevented from being deformed in the fitting portion 22 and the reliability at the time of connection to the coaxial connector can be improved.

  In addition, in the rod-shaped terminal 70, at the rear end portion on the opposite side to the fitting portion 22, the core wire 5 of the coaxial cable 4 can be inserted and crimped to the intermediate portion or the tip portion in the axial direction of the rod-shaped terminal 70. A crimping portion 72 having a larger diameter and having a hole for inserting a core wire formed from the rear end side is formed.

  A recess that forms a space with the inner peripheral surface of the connector main body 10 at a position corresponding to the crimping portion 72 of the rod-like terminal 70 on the outer peripheral surface of the insulating member 65 in contact with the inner peripheral surface of the connector main body 10. 67 is formed.

  This recess 67 eliminates the mismatch of transmission impedance that occurs at the crimped portion between the core wire 5 of the coaxial cable 4 and the rod-shaped terminal 70, and deteriorates the transmission characteristics of the transmission path formed through the coaxial cable connector. It is for preventing.

Further, in the coaxial cable connector of the embodiment shown in FIG. 6, the outer conductor of the coaxial cable 4 is connected to an annular connecting member 7a that is externally fitted to the distal end portion of the coaxial cable 4, and the connecting member 7a is connected to the connector. The main body 10 is connected to the connector main body 10 by being fitted inside the cable connection portion 13 formed at the end opposite to the fitting portion 22.

  The connecting portion between the cable connecting portion 13 and the coaxial cable 4 is provided with a synthetic resin bush 76 that protects the connecting portion, and the connecting portion between the bush 76 and the connector body 10 is a synthetic portion. It is protected by an overmold 78 formed by resin injection molding.

That is, the coaxial cable bull connector of the embodiment shown in FIG. 6 is integrally assembled at the tip of the coaxial cable 4 using the bush 76 and the overmold 78. For this reason, the coaxial cable connector does not come off from the coaxial cable 4, and this also improves the reliability of the coaxial cable connector.

Further, in the coaxial cable connector of the embodiment shown in FIG. 6, the amount of movement of the slide ring 40 in the axial direction of the slide ring 40 is that the wall 43 formed at the end opposite to the fitting portion 22 of the slide ring 40. It is regulated by contacting the stepped portion 18 formed on the outer peripheral surface of the insulating member 65 or the fitting portion side end of the overmold 78.

  And the protrusion 44 is provided in the internal peripheral surface of the fitting part 22 side opening end of the slide ring 40, the slide ring 40 moves to the fitting part 22 side, and the wall part 43 of the rear end is formed. When contacting the stepped portion 18 of the slide ring 40, the protrusion 44 goes over the opening end of the fitting portion 22, so that the opening end of the fitting portion 22 spreads outward and protrudes from the opening end surface. The strip 44 is engaged, and the slide ring 40 is positioned at that position.

Further, at the time of the engagement, the opening end of the fitting portion 22 spreads outward, and comes into contact with the inner wall of the slide ring 40, so that sound and vibration are generated, and the user moves the slide ring 40 to the top. That the movement to the tip position can be detected by sound or vibration.
[Modification]
Next , in the reference example and the embodiment described above, the linear coaxial cable connector in which the central axis of the coaxial cable 4 and the central axis of the fitting portion 22 are formed linearly has been described. Even the coaxial cable connector formed in an L shape so that the center axis of 4 and the center axis of the fitting portion 22 are orthogonal to each other can be applied in the same manner as described above.

  For example, in the coaxial cable connector shown in FIG. 6, since the rod-like terminal 70 connected to the core wire 5 of the coaxial cable 4 is provided in the internal space of the connector main body 10, as shown in FIG. The cable connecting portion 13 in which the connecting member 7a of the coaxial cable 4 is fitted is connected to the side wall at the end opposite to the fitting portion 22 from the direction orthogonal to the central axis of the connector main body 10. If the core wire 5 of the coaxial cable 4 is crimped to the rod-shaped terminal 70 provided in the internal space, an L-shaped coaxial cable connector can be easily configured.

Also in this L-shaped coaxial cable connector, if the plug connection portion 20 is composed of the fitting portion 22 and the slide ring 40 in the same manner as the coaxial cable connector shown in FIG. By applying the invention, the same effects as described above can be obtained.
[Other variations]
On the other hand, the tip shape of the protrusion 32 provided on the inner wall on the opening end side of the fitting portion 22 may be sharp or rounded.

In the reference example and the embodiment, the protrusion 32 is provided on the entire inner periphery of the fitting portion 22, but only a part of the protruding pieces divided by the slit 30 at the tip of the fitting portion 22. May be provided.

  Further, in this case, the projecting piece not provided with the protrusion 32 is not formed in a taper shape extending outward, but is formed in a straight shape extending straight in the axial direction, or the angle extending outward is reduced. May be.

  In this way, it is possible to reduce the force required to move the slide ring 40 to the opening end side to position (lock) the fixed position or release the position (lock). The operability of 40 can be improved.

In the reference example and the embodiment described above , the protrusion 32 is described as being formed in an annular shape around the central axis of the fitting portion 22, but the thread formed on the outer peripheral surface of the coaxial plug to be connected. Corresponding to the shape, it may be formed in a spiral shape.

And if it does in this way, since a protrusion can be engaged with a screw thread in the substantially whole region, it can prevent more reliably that a coaxial cable connector remove | deviates from a coaxial plug.
In the coaxial cable connector of the embodiment or the first and second modifications shown in FIGS. 1 to 5, the protrusion 42 provided on the inner wall of the slide ring 40 and the movement of the slide ring 40 by engaging with the protrusion 42. The guiding notch 38 is not necessarily provided and may be omitted.

Similarly, the coaxial cable connector shown in FIGS. 1 to 5, the tip portion of the insertion portion 12 is the outer diameter is in the same cylindrical shape, easily inserted into the coaxial cable 4, and coaxial cable after the insertion In order to make it difficult to come off, the outer periphery of the insertion portion 12 may be tapered so that the outer diameter becomes smaller toward the tip side, and the diameter may be once increased and tapered at the most distal end portion. Such a taper may be formed in a plurality of stages in the axial direction.

  2 ... F-type plug (coaxial plug), 4 ... coaxial cable, 5 ... core wire, 6 ... insulating member, 7 ... external conductor, 7a ... connecting member, 8 ... cover member, 10 ... connector body, 12 ... insertion portion , 13 ... cable connection part, 14 ... collar part, 16 ... fixing part, 18 ... step part, 20 ... plug connection part, 22 ... fitting part, 24 ... insertion hole, 26 ... wall part, 28 ... fixing part, 30 ... slit, 32, 36 ... protrusion, 38 ... notch, 40 ... slide ring, 41 ... slit, 42 ... protrusion, 43 ... wall, 44, 48 ... protrusion, 50 ... leaf spring, 60 ... ring cover , 65 ... insulating member, 67 ... recess, 70 ... rod-shaped terminal, 72 ... crimping part, 76 ... bush, 78 ... overmold.

Claims (7)

The connector body is formed in a cylindrical shape so that one open end side thereof can be connected to the outer conductor of the coaxial cable, and into the inner space, the core wire of the coaxial cable or the rod-shaped terminal connected to the core wire can be inserted;
A cylindrical fitting portion provided at the opening end of the connector body opposite to the coaxial cable, into which a coaxial plug to be connected can be inserted,
In the coaxial cable connector in which the connector body and the fitting portion are made of a conductive metal,
The fitting part is formed in a tapered shape whose opening end side opposite to the connector body has a diameter increasing outwardly, and the taper part extends from the opening end side to the central axis of the fitting part. Is divided into a plurality of slits formed along a plurality of slits, so that the opening end side can be reduced in diameter.
Around the fitting portion, it is formed in a cylindrical shape with a conductive metal, along the central axis of the fitting portion from the connector body side to the opening end side where the slit is formed or in the opposite direction. movable slide ring provided it is bidirectionally Te,
Moreover, the slide ring is shorter than the slit of the fitting portion from the opening end opposite to the connector main body toward the connector main body side, and does not overlap the slit of the fitting portion. A coaxial cable connector , wherein a plurality of slits are formed .   The protrusion which can be engaged with the screw thread formed in the outer peripheral surface of the said coaxial plug is formed in the inner peripheral surface of the opening end side of the said fitting part. Coaxial cable connector.   In at least one of the inner peripheral surface of the slide ring and the outer peripheral surface of the fitting portion, the slide ring is moved to the opening end side of the fitting portion to reduce the diameter of the fitting portion, The coaxial projection according to claim 1 or 2, wherein an engagement protrusion for positioning the slide ring is formed by engaging with the engagement portion on the fitting portion side or the slide ring side. Cable connector.   The engaging portion formed on the outer peripheral surface of the fitting portion is an opening of the fitting portion when the slide ring is moved to the opening end side of the fitting portion and engages with the engaging portion of the slide ring. 4. The coaxial cable connector according to claim 3, wherein the coaxial cable connector is formed in the vicinity of the opening end of the fitting portion so that the end expands and contracts and hits the inner peripheral surface of the slide ring to generate sound. 5. The resin ring cover according to claim 1 , wherein a resin ring cover is provided around an end of the slide ring on a connector main body side around the slide ring. Coaxial cable connector. In the internal space of the connector body, there is provided an insulating member that holds a rod-like terminal, to which a core wire of a coaxial cable is crimped, protruding in the fitting portion,
On the outer peripheral surface of the insulating member in contact with the inner peripheral surface of the connector main body, a space is formed between the inner peripheral surface of the connector main body at a position corresponding to the crimped portion between the core wire and the rod-shaped terminal of the coaxial cable. The coaxial cable connector according to any one of claims 1 to 5, wherein a concave portion to be formed is formed. When the coaxial plug is inserted into the fitting portion, the fitting portion is disposed between the inner peripheral surface of the fitting portion and the outer peripheral surface of the coaxial plug. The coaxial cable connector according to any one of claims 1 to 6 , wherein a leaf spring for biasing the surface is provided.

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