JP7413496B1 - TV terminal - Google Patents

Abstract

[Problem] To provide a TV terminal to which a coaxial cable can be directly connected, which can confirm that the core wire of the coaxial cable is connected to an internal contact pin, which can prevent noise, and which can easily fix the coaxial cable. It is to be. A TV terminal 100 includes a main body 200 having a conductive contact pin 210, and a plurality of L-shaped shells connected to the main body 200 and inserted into one side and the other side of the main body 200, respectively. 300 , a cover member 500 that is pivotally supported on one end of the L-shaped shell 300 and can be opened and closed, and an insulating bush 410 provided inside the L-shaped shell 300 to separate it from the inner wall of the L-shaped shell 300 . The inner contact pin 420 is held by the inner contact pin 420, and the shell window 360 allows the connection between the inner contact pin 420 and the core wire 970 of the inserted coaxial cable 950 to be visually recognized. [Selection diagram] Figure 1

Description

The present invention relates to a TV terminal into which a coaxial cable is inserted.

Patent Document 1 (Japanese Unexamined Patent Publication No. 6-163116) discloses a connection structure for a television coaxial plug that can be easily connected even by general users.
The connection structure of the TV coaxial plug described in Patent Document 1 includes a metal shielding case with a U-shaped cross section that houses the tip of a coaxial cable inserted through an opening at one end and shields it with side pieces and a bottom piece; A connecting terminal part is provided in the center of the bottom piece of the metal shielding case, is electrically connected to the metal shielding case, and cuts into and contacts the braided wire part exposed at the tip of the coaxial cable, and the metal shielding case A core wire insertion terminal, which is electrically insulated from the metal shielding case at the other end, is provided to connect the core wire exposed at the tip of the coaxial cable, and a core wire insertion terminal is provided at the other end of the metal shielding case. A plug part in which a cylindrical electrode is arranged and connected to the lower part of the outer bottom surface, and a plug provided in the center of the cylindrical electrode is connected to a core wire insertion terminal inside the metal shielding case, and a plug part on both sides of the metal shielding case. A metal movable shielding can, one end of which is pivotally supported on the upper part of one end so that it can be opened and closed, and which shields the upper opening side of the metal shielding can in the closed state; The locking spring has a pressing portion that presses the coaxial cable in the shielded box downward, and a locking portion that bites into the outer sheath of the coaxial cable in the opposite direction of insertion.

Patent Document 2 (Japanese Unexamined Patent Publication No. 7-14647) discloses a structure of a television coaxial plug that facilitates shielding after connection of a coaxial cable, facilitates connection of a coaxial cable, and improves ease of assembly. ing.
The structure of the TV coaxial plug described in Patent Document 2 includes a cable connection fitting having a U-shaped cross section that houses the tip of a coaxial cable inserted through an opening at one end and shielding it with both side pieces and a bottom piece, and this cable connection fitting. A connecting terminal part is provided in the center of the bottom piece of the cable connector and is electrically connected to the cable connecting metal fitting, and a connecting terminal part that bites into contact with the braided wire part exposed at the tip of the coaxial cable, and a connecting terminal part on the other end side of the cable connecting metal fitting. The cable connection fittings are arranged in an electrically insulated state, and include a core wire connection fitting that connects to the core wire exposed at the tip of the coaxial cable, and an external contact located below the outer bottom surface of the other end of the cable connection fitting. A plug part in which the center contact provided at the center of the external contact is connected to the core wire connection fitting in the cable connection fitting, and one end is pivotally supported on the upper part of one end side of both sides of the cable connection fitting so as to be openable and closable. and a cable holding fitting that shields the top opening side of the cable connecting fitting in the closed state and caulks the coaxial cable, and a cable holding fitting that is provided integrally with the cable holding fitting and shields the core wire connecting fitting in the shielding state of the cable holding fitting. It is equipped with a shield part.

Patent Document 3 (Japanese Unexamined Patent Publication No. 6-251832) discloses that the cable connecting fitting is not caulked except when actually connecting the coaxial cable, and when the coaxial cable is actually connected, the rib is in a position where the cable connecting fitting can be caulked. A positionable TV coaxial plug is disclosed.
In the TV coaxial plug described in Patent Document 3, one end includes a cable connection fitting that obtains continuity by caulking the braided wire of a TV coaxial cable, and a core wire connection that obtains continuity by fixing the core wire of the coaxial cable. A plug body is made up of a main body that includes a metal fitting, a core wire connection fitting and an insulated shield bottom, and a connection part for connecting to a TV outlet on the other end, and a cover that is provided on the main body so that it can be opened and closed via a hinge part. Inside the cover is a shield case that fits with the bottom of the shield and conducts electricity when the cover is closed, and is approximately U-shaped with both sides curved to match the shape of the cable connection fitting. A rotatable rib is provided inside the cover, which compresses both sides of the cable connection fitting when the cover is closed, thereby reducing the diameter of the cable connection fitting and caulking the cable connection fitting.

Patent Document 4 (Japanese Unexamined Patent Publication No. 6-251833) discloses a TV coaxial plug that allows easy reconnection of coaxial cables.
In the TV coaxial plug described in Patent Document 4, on one end side, there is a cable connecting fitting made of an elastic metal that obtains conduction by caulking the braided wire of a TV coaxial cable, and a cable connecting fitting made of an elastic metal that obtains conduction by fixing the core wire of the coaxial cable. A main body comprising a core wire connection fitting that obtains the desired performance, a shield bottom insulated from the core wire connection metal fitting, and a connection part for connecting to a TV outlet on the other end, and a cover provided on the main body so as to be openable and closable via a hinge part. The inside of the cover has a rib that reduces the diameter of the cable connection fitting by pressing both sides of the cable connection fitting when the cover is closed, and a shield when the cover is closed. It is equipped with a shield case that fits into the bottom and provides electrical continuity.

Patent Document 5 (Japanese Unexamined Patent Publication No. 2004-134192) discloses a coaxial cable connector that prevents the coaxial cable from coming out and has a release function.
In the coaxial cable connector described in Patent Document 5, the coaxial cable connector has a cable attachment means for attaching the coaxial cable to the rear part and a connection means for connecting the coaxial cable to the connection target in the front part, The attachment means is formed inside a substantially cylindrical outer cylinder into which the coaxial cable is inserted, and includes a sleeve portion inserted between the inner insulator and the outer conductor of the coaxial cable, and a sleeve portion that prevents the coaxial cable from being pulled out. It has a stopper and a releaser that releases the coaxial cable from being prevented from being pulled out by the stopper, and the stopper has a cylindrical body that is elastic and has the same central axis as the outer cylinder; It consists of a gripping part that is constricted in the front part of the body and that performs a gripping operation by bringing the tip into line contact around the coaxial cable, and a locking part that locks onto the external cylinder provided at the rear part of the body. By inserting and mounting the coaxial cable into the external cylinder, the gripping portion grips the coaxial cable and prevents the coaxial cable from being pulled out.

Patent Document 6 (Japanese Unexamined Patent Publication No. 2003-142214) discloses that the central conductor and braid of the coaxial cable can be quickly inserted into the hollow part of the connector with a one-touch operation, and when the coaxial cable is pulled out from the connector. discloses a connector for a coaxial cable that can be pulled out and reattached without damaging the coaxial cable braid.
In the coaxial cable connector described in Patent Document 6, the base member of the connector body is provided with an insertion hole for inserting the center conductor of the coaxial cable, and the braided portion of the coaxial cable is positioned from one side of the base member. A side wall is protruded so as to form a hollow storage chamber inside the hollow storage chamber, and the center conductor of the coaxial cable passes through the insertion hole, and the braided portion of the coaxial cable is inserted into the hollow storage chamber. In a connector for a coaxial cable, which is provided with a retaining member that presses against the braided portion to prevent the braided portion from coming out when the braided portion is installed indoors, in the hollow storage chamber, the inner is a cylindrical contact tube equipped with an insertion hole that coaxially communicates with the above-mentioned insertion hole in order to insert the center conductor, one end is integrally joined to one surface of the above-mentioned base member, and the other end is connected to the above-mentioned hollow housing. The contact cylinder is arranged so as to protrude toward the opening in the storage chamber, and the outer peripheral surface of the contact tube is covered with a braid of a coaxial cable inserted through the opening in the storage chamber so as to be electrically conductive. Around the hollow contact tube, a plurality of resilient engagement claws are arranged to prevent the contact tube from coming off, and are inclined so that the free end approaches the contact tube from the opening side toward the base member side. After the braid of the coaxial cable to be inserted into the storage chamber is inserted by pushing up the engaging claw, the braid is arranged so that it can be pressed and locked, and the contact tube is placed over the opening in the hollow storage chamber. A cylindrical release member having an inner circumferential surface larger than the outer circumference of the above-mentioned braid is attached so as to be freely movable in the axial direction, and the tip of the engaging claw removing member at the free end of the release member on the base member side. is set so that when the release member is pushed forward toward the base member, the engagement claw can be pushed up to separate the claw from the braided portion of the coaxial cable, and when the release member is pushed back, the engagement The tip of the claw is configured to be able to return to a position where the above-mentioned braid can be pressed and locked.

Patent Document 7 (Japanese Unexamined Patent Publication No. 2008-91318) discloses a series unit that has excellent workability when attached to a wall surface.
In the series unit described in Patent Document 7, an input terminal and an output terminal each comprising a cylindrical socket having a center conductor and an outer conductor provided concentrically with the center conductor, a TV terminal, and an input terminal and an output terminal. , and a unit casing that supports the TV terminal, the outer conductor of each terminal is electrically connected via the unit casing, and the center conductor is electrically connected within the space formed inside the unit casing. In the connected series units, both the input terminal and the output terminal have a shape in which the direction of the connection end with the unit housing and the direction of the detachable end where the cable side terminal is attached or detached are perpendicular to each other, and The connecting end with the unit housing is configured as a rotatable movable terminal, and is arranged so that the planes formed by the central axes of the attaching and detaching ends intersect with each other due to the rotation of both movable terminals.

Patent Document 8 (Japanese Unexamined Patent Publication No. 2004-247228) discloses a coaxial cable distributor that increases the versatility of a coaxial cable distributor or branch.
In the coaxial cable distributor described in Patent Document 8, a coaxial cable connection terminal (hereinafter referred to as a connection terminal) is provided with a center contact and a cylindrical external contact provided concentrically with the center contact on the surface of a housing having a cavity inside. A coaxial cable distributor in which three or more connectors (referred to as plugs) are attached, the external contacts of each plug are electrically connected to each other by the housing, and the center contacts are electrically connected to each other within the cavity of the housing. At least two of the plugs rotate about a rotation axis in a direction perpendicular to the direction of protrusion from the housing surface while maintaining electrical connection between the external contacts and between the center contacts.

Japanese Patent Application Publication No. 6-163116 Japanese Unexamined Patent Publication No. 7-14647 Japanese Patent Application Publication No. 6-251832 Japanese Patent Application Publication No. 6-251833 Japanese Patent Application Publication No. 2004-134192 Japanese Patent Application Publication No. 2003-142214 JP2008-91318A JP2004-247228A

Wall terminals for extracting TV signals have traditionally been installed on the walls of houses, and coaxial cables wired within the walls are connected to the wall terminals.
In recent years, the 4K8K standard has been newly established, and TV terminals are also required to suppress noise, have reliable contact, and prevent coaxial cables from being pulled out so as not to interfere with other wireless services. Furthermore, the TV terminal is required to be rotatable depending on the installation environment.
In particular, from the viewpoint of shielding noise, as described in conventional Patent Documents 1 to 8, if the core wire of the coaxial cable is exposed, even if it is covered, a large amount of noise will remain in the 4K8K standard. It was a problem.

In addition, in the case of conventional TV terminals, the coaxial cable was generally connected through an F-type plug, so in order to install it, it was first necessary to attach an F-type plug to the coaxial cable whose tip had been processed. However, there was the hassle of having to prepare an F-type plug separately.
Further, even if it is possible to directly connect the coaxial cable, there is a problem that the workability is poor because it is necessary to fix the coaxial cable with screws after connecting the coaxial cable.

The main purpose of the present invention is that the coaxial cable can be directly connected, the core wire of the coaxial cable can be confirmed to be connected to the internal contact pin, noise prevention can be realized, and the coaxial cable can be easily fixed. The aim is to provide a TV terminal that can be used.

(1)
A TV terminal according to one aspect includes a main body having a center contact, a substrate, and a conductive contact, and an L-shaped shell connected to the main body and inserted only on one side of the main body, or one side and the other side. The L-shaped shell is formed by a plurality of L-shaped shells each inserted into the L-shaped shell, a cover member that can be opened and closed and pivoted on one end of the L-shaped shell, and an insulating member provided inside the L-shaped shell. The cover member includes an internal contact pin held apart from the inner wall of the shaped shell, and a shell window through which the connection between the internal contact pin and the core wire of the coaxial cable to be inserted is visible, and the cover member opens the shell window when opened. It is made visible, and when it closes, it closes the shell window and fixes the outer sheath of the coaxial cable.

In this case, the shell window of the L-shaped shell can be used to confirm that the core wire of the coaxial cable is connected to the internal contact pin. Moreover, since the shell window can be closed when the cover member is moved to close, a high degree of noise prevention can be achieved. Furthermore, the coaxial cable can be easily fixed by rotating the cover member relative to the L-shaped shell.
Note that even when the shell window is closed, if the cover member is transparent or translucent, the shell window can be visually recognized through the transparent or translucent member.
Furthermore, with conventional wall terminals, it was necessary to form an F-type plug on the tip of the coaxial cable before connecting it. However, in the present invention, there is no need to attach an F-type connector, and it is possible to directly connect a coaxial cable with a processed tip. In addition, although there were cases where the F-type plug was not necessary, there was a problem in that it required tightening of screws, etc. when fixing the coaxial cable, resulting in poor workability. However, in the present invention, the coaxial cable can be fixed with one touch by simply moving the cover member into the closed state.
Furthermore, when connecting the F-type connector after processing it, a space is required to insert a tool for attaching the F-type connector, making it difficult to downsize. Specifically, a space was required to insert a spanner or the like for fixing the F-type plug.
The present invention does not require an F-type connector, allows direct connection of a coaxial cable with a processed tip, and further eliminates the need for a space for inserting a tool, making it possible to achieve miniaturization and/or space saving. .

(2)
A TV terminal according to a second aspect of the invention includes a disc spring provided between the main body and the other end of the L-shaped shell; The device may further include a C-ring for preventing insertion and removal from the portion.

In this case, force is applied to the main body and the L-shaped shell in the direction of separating them from each other due to the elasticity of the disc spring, and the main body and the L-shaped shell are maintained in a predetermined relationship so as not to be separated by the C-ring. Ru.
As a result, when the L-shaped shell is connected to the main body, it can be rotated 180 degrees with respect to the main body about the other end of the L-shaped shell as an axis.

(3)
A TV terminal according to a third aspect of the present invention is a TV terminal according to one aspect, in which a part of the housing on the other end side of the L-shaped shell has a cylindrical outer shape, and a housing on the one end side of the L-shaped shell has a cylindrical outer shape. The external shape of the body may be a rectangular cylindrical shape, and the cover member may have a U-shaped cross section and have a shape capable of accommodating the rectangular cylindrical shape.

In this case, since the other end has a cylindrical shape, it is easy to rotate it relative to the main body. Moreover, in order to reliably close the shell window with the cover member, the one end side preferably has a rectangular cylindrical shape.

(4)
A TV terminal according to a fourth aspect of the present invention is a TV terminal according to one aspect, in which the cover member has a biting part that bites into the outer skin of the coaxial cable, and the L-shaped shell has a notch on one end side. , when the coaxial cable moves closed, the biting portion may bite into the coaxial cable via the notch.

In this case, when the cover member is moved to close, the biting portion of the cover member bites into the outer skin of the coaxial cable, so that the coaxial cable can be reliably prevented from being pulled out.

(5)
A TV terminal according to a fifth aspect of the present invention is a TV terminal in which a pair of protrusions are provided on one end side of the L-shaped shell, and are rotatable by fitting into a pair of holes in a cover member. A protrusion may be provided on the other end side of the L-shaped portion of the L-shaped shell, and the closed state may be maintained by fitting into the recess or hole of the cover member.

In this case, the cover member can be opened and closed about the pair of protrusions. Furthermore, the recess or hole and the projection fit together, and the closed state of the cover member can be reliably maintained.

(6)
A TV terminal according to a sixth aspect of the present invention is a TV terminal according to one aspect, in which the inner cylinder of the L-shaped shell is communicated from one end side to the other end side, and a transparent or translucent insulating member is connected to the inner cylinder. A contained internal contact pin may be provided and held spaced apart from the inner wall of the L-shaped shell.

In this case, the distance from the inner wall of the L-shaped shell to the internal contact pin can be maintained reliably. As a result, the dielectric constant can be kept constant. Furthermore, electrical continuity between the L-shaped shell and the internal contact pins can be reliably prevented.
Furthermore, connections between internal contact pins and core wires can be confirmed through the transparent or semi-transparent insulating member from the shell window.

(7)
The TV terminal according to a seventh invention is the TV terminal according to the sixth invention, further including a ring member insertable into the inner cylinder on one end side of the L-shaped shell, and the ring member is connected to the outer conductor of the coaxial cable. The L-shaped shell may have a structure that allows electrical conduction, and may also have a function of preventing the internal contact pin and the insulating member inserted into the inner tube at one end of the L-shaped shell from coming off.

In this case, the ring member can reliably maintain the conduction state of the coaxial cable, and can also be grounded to the casing of the L-shaped shell of the TV terminal. As a result, leakage characteristics can be maintained well. Further, by press-fitting the ring member into the L-shaped shell, it is possible to prevent the transparent or semi-transparent insulating member from being pulled out.
Furthermore, this structure allows it to have shielding performance equivalent to that of an F-type connector, and the structure can also be applied to devices using other F-type connectors.

(A)
A TV terminal according to an aspect of the invention is a TV terminal in which the transparent or translucent insulating member is made of polypropylene, the cover member is made of stainless steel, and the L-shaped shell is made of die-casting. good.

In this case, since the transparent or translucent insulating member is made of polypropylene that has elasticity and can be insulated, the visibility of the connection can be improved. Furthermore, since the cover member is made of stainless steel, the outer sheath of the coaxial cable can be held securely.

(B)
A TV terminal according to a third aspect of the present invention is a TV terminal in which a D cut is formed in a part of the outer periphery of the ring member, and a part of the inner cylinder on one end side of the L-shaped shell is provided with a D cut. A D-cut surface corresponding to the D-cut may be formed, and the ring member may be press-fitted into the inner cylinder of the L-shaped shell while the D-cut of the ring member corresponds to the D-cut surface.

In general, there is a risk that the coaxial cable may not be fixed incompletely due to errors or variations in the outer diameter of the coaxial cable. In this case, in the present invention, the amount of compression can be increased by reducing the inner diameter using the D-cut surface provided on the inner cylinder of the L-shaped shell, and as a result, errors or variations in the outer diameter can be reduced. It can absorb and securely hold the coaxial cable. Furthermore, it is possible to prevent the ring member from rotating together with the coaxial cable within the inner cylinder.

FIG. 2 is a schematic perspective view showing an example of a TV terminal according to the present embodiment. FIG. 2 is a schematic cross-sectional view showing a part of the horizontal cross-section of the TV terminal in FIG. 1. FIG. It is a typical cross-sectional explanatory view showing an example of an insulating bush and an internal contact pin. It is a typical cross-sectional explanatory view showing an example of an insulating bush and an internal contact pin. It is a typical cross-sectional explanatory view showing an example of an insulating bush and an internal contact pin. It is a typical cross-sectional explanatory view showing an example of an insulating bush and an internal contact pin. FIG. 3 is a schematic explanatory diagram for explaining conduction between an internal contact pin, a conduction contact pin, and a core wire of a coaxial cable. It is a typical explanatory view for explaining an example of a pair of L-shaped shells and a cover member. It is a typical explanatory view for explaining an example of a pair of L-shaped shells and a cover member. It is a typical perspective view for explaining an example of a fixed sleeve. It is a typical perspective view for explaining other examples of a cover member. It is a typical perspective view for explaining other examples of a fixed sleeve.

Embodiments of the present invention will be described below with reference to the drawings. In the following description, the same parts are given the same reference numerals. In addition, when the symbols are the same, their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[Embodiment]
FIG. 1 is a schematic perspective view showing an example of the TV terminal 100 according to the present embodiment, and FIG. 2 is a schematic cross-sectional view showing a part of the horizontal cross section of the TV terminal 100 in FIG. 1.

(Schematic explanation of TV terminal 100)
The TV terminal 100 according to this embodiment is a wall terminal that is mainly attached to a wall. Note that the same structure as the present invention can be applied to boosters, distributors, etc. That is, the TV terminal according to the present invention also includes a booster, a distributor, and the like.
First, as shown in FIGS. 1 and 2, the TV terminal 100 mainly includes a main body 200, a pair of L-shaped shells 300, a cover member 500 attached to the L-shaped shells 300, a fixing sleeve 800, and a disc spring 910. , and a C-ring 920.

Further, as shown in FIG. 1, the TV terminal 100 includes a pair of L-shaped shells 300, one each on one side or both sides of the main body 200. The pair of L-shaped shells 300 are not made of the same member, but have a symmetrical shape. As shown in the figure, the pair of L-shaped shells 300 has a shape that is curved at 90 degrees at the other end between one end side and the other end side. As shown by arrow R in FIG. 1, each of the pair of L-shaped shells 300 is provided so as to be rotatable within a range of at least 180 degrees with respect to the main body portion 200.
Further, the main body portion 200 is provided with a conductive contact pin 210, a center contact pin 211, a plug seat 250, a switch (not shown) capable of switching between one side and two directions, and a substrate 240. The plug seat 250 has a structure that is electrically connected to a ground portion 960 (laminate and mesh wire) of a coaxial cable 950 that is connected to the pair of L-shaped shells 300. Note that a switch (not shown) capable of switching between one side and two directions is not essential and may be omitted.
The conductive contact pin 210 is electrically connected to a core wire 970 of a coaxial cable 950 connected to the L-shaped shell 300.

The coaxial cable 950 according to this embodiment is a model compatible with a frequency of 3.2 GHz and compatible with 4K and 8K radio wave environments. Since the high frequency of 3.2 GHz is likely to leak, a double shield is formed inside the outer skin of the coaxial cable 950, that is, a shield is formed with aluminum foil and braid. However, since an F-type plug is not used, if the TV terminal 100 is to be compatible with a 4K or 8K radio wave environment, shielding performance for shielding radio waves with a frequency of 3.2 GHz is required.

(Pair of L-shaped shells 300)
As shown in FIGS. 1 and 2, the pair of L-shaped shells 300 include an internal space 310, a pair of shafts 320, a notch 330, a convex portion 340 (see FIG. 7 or 8), and a shell window 360. is formed.
The outer casings of the pair of L-shaped shells 300 are made of a metal conductor. For example, it is preferably made of zinc die casting. Note that the pair of L-shaped shells 300 may be formed of any material other than zinc die-casting or any other material that can realize electrical shielding.

(Internal space 310)
As shown in FIGS. 1 and 2, the cross section of one end of the outer casing of the pair of L-shaped shells 300 is rectangular and has a substantially circular internal space 310 therein. Further, the cross section of the pair of L-shaped shells 300 on the other end side of the outer casing has a shape changed from a rectangular shape to a cylindrical shape, and has a substantially circular internal space 310 therein. The internal space 310 from the one end side to the other end side is provided to penetrate.

Further, an internal contact pin 420 is incorporated into the insulating bush 410 and inserted into the internal space 310. Additionally, a fixing sleeve 800 is press-fitted into the internal space 310 to prevent the insulating bushing 410 from being pulled out. Furthermore, an air space is formed between the insulating bush 410 and the internal space 310 for impedance adjustment (see FIG. 2, on the side of the reference numeral 410).

(Insulating bush 410 and internal contact pin 420)
3, 4, and 5 are schematic cross-sectional explanatory views showing an example of the insulating bush 410 and the internal contact pin 420.
FIG. 6 is a schematic cross-sectional explanatory diagram showing an example of the insulating bush 410 and the internal contact pin 420, and FIG. 7 illustrates the conduction between the internal contact pin 420, the conductive contact pin 210, and the core wire 970 of the coaxial cable 950. FIG.

As shown in FIG. 3, the insulating bush 410 is formed into a divided cylindrical shape. An internal contact pin 420 is housed inside the insulating bush 410, and as shown in FIGS. 4 and 5, the internal contact pin 420 is contained within the insulating bush 410.
Further, the insulating bush 410 is provided with a recess 412 and a protrusion 414. By inserting the convex portion 414 into the concave portion 412, the insulating bush 410 becomes approximately cylindrical.
Further, as shown in FIG. 3, a thin connecting portion 416 is provided between the divided shapes of the insulating bush 410. The thin connecting portion 416 is formed to prevent the substantially cylindrical outer shape of the insulating bush 410 from expanding.

Further, as shown in FIG. 6, the insulating bush 410 has a positioning portion 418 formed therein. The positioning portion 418 is inserted into a positioning hole formed in the internal space 310 of the pair of L-shaped shells 300, and its position within the internal space 310 is determined. This positioning portion 418 can be electrically connected to the conductive contact pin 210 every 180 degrees. That is, as shown in FIG. 6, the conductive contact pin 210 of the main body part 200 can be brought into contact with the contact part 425 of the internal contact pin 420.
Since the internal contact pin 420 is connected to the conductive contact pin 210 in a rotatable structure without inhibiting electrical continuity, the internal contact pin 420 rotates as indicated by the arrow R (see FIG. 1) of the L-shaped shell 300. It can be rotated according to the movement without contact failure.

Further, as shown in FIG. 7, the internal contact pin 420 housed in the internal space 310 of the pair of L-shaped shells 300 is inserted into the conductive contact pin 210, and then the internal contact pin 420 is connected to the coaxial cable 950. It is connected to the core wire 970 in the region AR for conduction.
Note that in FIG. 7, the internal contact pin 420 is actually wrapped in a transparent insulating bush 410, but the insulating bush 410 is not shown for the sake of explanation.

(Description of cover member 500 and relationship between shaft portion 320, convex portion 340, and cover member 500)
Next, FIGS. 8 and 9 are schematic explanatory diagrams for explaining an example of a pair of L-shaped shells 300 and a cover member 500.

(Cover member 500)
As shown in FIGS. 8 and 9, the cover member 500 is formed of a metal plate. For example, it is formed by processing a plate member made of stainless steel spring steel. Note that the cover member 500 may be made of any material other than stainless steel or any other material that can provide electrical shielding.
As shown in FIGS. 7 and 8, the cover member 500 is a member having a U-shaped cross section so as to surround the exterior of the casing of the L-shaped shell 300 from three directions. As shown in FIGS. 8 and 9, the cover member 500 includes a bite portion 525 (see FIG. 2), a finger hook portion 570, a hole 575, and a pair of rotation holes 590.

A pair of rotation holes 590 are formed at one end of the cover member 500 so as to fit with the pair of shaft portions 320 of the L-shaped shell 300 for opening and closing operations. Further, a hole 575 that can fit into the convex portion 340 of the L-shaped shell 300 is formed on the other end side of the cover member 500. When the cover member 500 is in the closed state, the convex portion 340 and the hole 575 fit together, thereby fixing the L-shaped shell 300 and the cover member 500 in the closed state.
Furthermore, by pulling the finger hook portion 570, the hole 575 is separated from the convex portion 340 of the L-shaped shell 300, and the cover member 500 can be placed in the open state.

(Notch 330 and coaxial cable 950)
Further, the cover member 500 has a biting portion 525 formed therein. As shown in the cross-sectional view of FIG. 2, the biting part 525 can penetrate the cutout part 330 of the L-shaped shell 300 and bite into the outer skin part of the coaxial cable 950 to fix the coaxial cable 950.
The biting part 525 of the cover member 500 uses the rotation hole 590 as a fulcrum, the finger rest part 570 side as a point of force, and the biting part 525 as a point of action, thereby increasing the pressing force with less operating force based on the lever principle. The biting portion 525 can be reliably bitten into the outer sheath of the coaxial cable 950.
That is, it is desirable that the distance from the biting part 525 to the finger hook part 570 is longer than the distance from the rotation hole 590 of the cover member 500 to the biting part 525.

(shell window 360)
A shell window 360 is provided in each of the pair of L-shaped shells 300. The shell window 360 according to the present embodiment is formed in the L-shaped shell 300 with a size of 3.5 mm square. The size of this shell window 360 is important in terms of balance with leakage, and is determined in relation to leakage. It is formed so that the area AR (see FIG. 7), which is the connection position between the internal contact pin 420 and the core wire 970 of the coaxial cable 950, can be confirmed.
Note that the size of the shell window 360 is not limited to 3.5 mm square, but may be any size determined based on the balance with leakage.

(Fixed sleeve 800)
FIG. 10 is a schematic perspective view for explaining an example of the fixing sleeve 800.

Fixation sleeve 800 includes four protrusions 820 and a D-cut 840. Fixed sleeve 800 is made of zinc die casting. Note that the fixing sleeve 800 is not limited to zinc die casting, but is preferably made of any material such as a metal conductor having electrical conductivity.

As explained above, the fixing sleeve 800 is press-fitted into the internal space 310 of the L-shaped shell 300. That is, the external size of the fixed sleeve 800 is formed to be slightly larger than the cylindrical size of the internal space 310 of the L-shaped shell 300.
Furthermore, as shown in FIG. 10, by providing four protrusions 820 on the inner wall of the fixed sleeve 800, when the coaxial cable 950 is inserted, conduction on the GND side in the axial direction with respect to the ground portion 960 of the coaxial cable 950 is established. can be secured. That is, these four protrusions 820 are for grounding by biting into the laminate part (aluminum foil) of the coaxial cable 950. Note that in this embodiment, there are four protrusions 820, but the present invention is not limited to this, and one or other number of protrusions may be provided, or any other ribs may be provided.

Further, a D cut 840 is formed in a part of the outer peripheral surface of the fixed sleeve 800. By forming the D cut 840, it is possible to prevent the fixed sleeve 800 from rotating together with the coaxial cable 950 within the internal space 310 of the pair of L-shaped shells 300. The fixed sleeve 800 is electrically connected to the ground portion 960 side of the coaxial cable 950 and the outer casings (GND side) of the pair of L-shaped shells 300.

(Disc spring 910)
As shown in FIG. 2, the disc spring 910 is provided between the L-shaped shell 300 and the main body 200. The disc spring 910 maintains tension in the direction of separating the L-shaped shell 300 and the main body portion 200, and also serves as an electrical ground. As a result, reliable GND continuity between the L-shaped shell 300 and the main body 200 can be obtained.
Further, the disc spring 910 generates an elastic force between the L-shaped shell 300 and the main body portion 200, so that the L-shaped shell 300 can be smoothly rotated in the direction of arrow R (see FIG. 1).

(C ring 920)
As shown in FIG. 2, the C-ring 920 is provided between the L-shaped shell 300 and the main body portion 200. C-ring 920 is provided so that L-shaped shell 300 and main body portion 200 are not separated from each other. As a result, the L-shaped shell 300 can be rotated in the direction of arrow R (see FIG. 1) with respect to the main body portion 200.

(Assembling method of TV terminal 100)
A method for assembling TV terminal 100 in this embodiment will be explained. First, a state in which the main body portion 200 and the L-shaped shell 300 are not connected will be described.
First, an assembly containing internal contact pin 420 within insulating bushing 410 is created.
Next, the above assembly is inserted into the internal space 310 of the pair of L-shaped shells 300. In this case, the assembly is positioned in the internal space 310 within the L-shaped shell 300 by the positioning portion 418 .
Next, the fixing sleeve 800 is press-fitted into the internal space 310. Subsequently, the pair of rotation holes 590 of the cover member 500 are fitted into the pair of shaft portions 320 of the L-shaped shell 300. Form these on the left and right sides.
Finally, the L-shaped shell 300 assembly is connected on one side of the main body 200 or on each of the left and right sides. In this connection, a disc spring 910 is interposed between the main body part 200 and the L-shaped shell 300, and a C ring 920 is used to prevent the main body part 200 from coming off. Thereby, the TV terminal 100 can be obtained.

(Connection method of connecting coaxial cable 950 to TV terminal 100)
First, the outer cover of the coaxial cable 950 is peeled off, and the tip is processed to expose the core wire 970, which is an internal conductor, and the ground portion 960, which is an external conductor. Next, the cover member 500 attached to the L-shaped shell 300 of the TV terminal 100 is opened.
Then, the coaxial cable 950 whose tip has been processed is inserted into the internal space 310 of the L-shaped shell 300. In this case, the GND portion (laminate and mesh wire) of the coaxial cable 950 fits into the four protrusions 820 provided on the inner wall of the fixed sleeve 800, ensuring GND continuity. Thereby, the ground portion 960 of the coaxial cable 950 and the GND of the TV terminal 100 are reliably electrically connected. Furthermore, since shielding is ensured, it functions effectively against leakage from the TV terminal 100.

Further, the core wire 970 of the coaxial cable 950 is fitted with the internal contact pin 420 installed inside the L-shaped shell 300, and conduction is established. Since the installer can visually confirm the state in which the core wire 970 of the coaxial cable 950 is fitted to the internal contact pin 420 through the shell window 360, a reliable connection is possible.
Subsequently, the cover member 500 is brought into a closed state. As a result, the biting portion 525 formed on the cover member 500 bites into the outer skin of the coaxial cable 950, and the coaxial cable 950 is fixed.
Finally, when the cover member 500 is brought into the closed state, the hole 575 of the cover member 500 and the convex portion 340 of the L-shaped shell 300 fit together, and the closed state is maintained.

As described above, when the cover member 500 is in the open state, the installer inserts the coaxial cable 950 with a processed tip into the L-shaped shell 300, and connects the core wire 970 and the internal contact pin 420 through the shell window 360. After confirming that, the cover member 500 can be fixed in the closed state. That is, the coaxial cable 950 can be directly, easily, and/or reliably connected to the TV terminal 100.

(How to remove the coaxial cable from TV terminal 100)
When removing the coaxial cable 950 connected to the TV terminal 100, the cover member 500 can be easily released from the L-shaped shell 300 to the open state by pulling the finger hook 570 of the cover member 500.
As a result, the biting portion 525 of the cover member 500 is separated from the coaxial cable 950, and the coaxial cable 950 can be removed. Thereby, even if the coaxial cable 950 is connected incorrectly, it can be easily removed.

(Effect of TV terminal 100)
In the TV terminal 100 according to the present embodiment, the coaxial cable 950 whose tip has been processed can be directly connected by removing the outer cover and exposing the core wire 970 that is the internal conductor and the ground portion 960 that is the external conductor. When the cover member 500 is in the open state, the core wire 970 of the coaxial cable 950 is inserted into the L-shaped shell 300, and the cover member 500 is in the closed state, so that it can be fixed with one touch.
Further, the region AR of the connection state between the core wire 970 of the coaxial cable 950 and the internal contact pin 420 can be visually recognized from the shell window 360 of the L-shaped shell 300, which will be described later, and a reliable connection can be realized.
The outer casing of the main body portion 200, the outer casing of the L-shaped shell 300, and the fixed sleeve 800 are electrically connected to each other and have the same potential, and function effectively as GND. Furthermore, the coaxial cable 950 can be securely fixed by the cover member 500. As a result, the TV terminal 100 has good leakage characteristics that meet industry standards.

(Other example 1)
FIG. 11 is a schematic perspective view for explaining another example of the cover member 500.

The differences between the cover member 500 shown in FIG. 11 and the L-shaped shell 300 and cover member 500 shown in FIGS. 8 and 9 will be explained.
The L-shaped shell 300 shown in FIG. 11 has the same structure as the L-shaped shell 300 shown in FIGS. 8 and 9. Meanwhile, the cover member 500 shown in FIG. 11 further includes a notch 550 and a spring member 560. The spring member 560 is bent toward the L-shaped shell 300.

The notch 550 is for forming a spring member 560, and is formed so that the spring member 560 can press the surface of the L-shaped shell 300. As a result, when the finger rest 570 is operated, the cover member 500 automatically presses against the surface of the L-shaped shell 300, and a force is generated to lift the cover member 500, allowing the installer to easily cover the Member 500 can be placed in an open position.
That is, when the cover member 500 is brought into the open state (released), there is a possibility that the biting portion 525 will be difficult to come off from the outer sheath of the coaxial cable 950. In this case, by using the cover member 500 in another example, tension can be applied by the spring member 560 so that the cover member 500 moves from the L-shaped shell 300 to the open state.

As described above, in the cover member 500 of the other example, when the finger rest portion 570 is operated, the cover member 500 can be easily released. Furthermore, as a secondary effect, it is possible to prevent rattling while the cover member 500 is being fixed to the L-shaped shell 300. Furthermore, it is possible to suppress misfitting between the hole 575 of the cover member 500 and the convex portion 340 of the L-shaped shell 300 when the cover member 500 is in the closed state.

(Other example 2)
FIG. 12 is a schematic perspective view for explaining another example of the internal space 310 of the L-shaped shell 300 and the fixing sleeve 800.

The internal space 310 of the L-shaped shell 300 shown in FIG. 12 is different from the internal space 310 of the L-shaped shell 300 shown in FIGS. 1 and 2, and the fixed sleeve 800 shown in FIG. The differences from fixed sleeve 800 will be explained.
The internal space 310 of the L-shaped shell 300 shown in FIG. 12 does not have a cylindrical shape, but is partially provided with a D cut 390.
A fixing sleeve 800 is press-fitted into the internal space 310 shown in FIG. 12 . In this case, the D cut 390 presses the D cut 840 on the outer peripheral surface of the fixed sleeve 800.

That is, due to an error or variation in the outer diameter of the coaxial cable 950, there is a possibility that the fixation of the coaxial cable 950 may become incomplete. In this case, the D cut 390 provided in the internal space 310 of the L-shaped shell 300 can increase the amount of compression by reducing the inner diameter, and as a result, errors or variations in the outer diameter can be absorbed, The coaxial cable 950 can be held securely. Furthermore, the relationship between the D-cut 390 and the D-cut 840 can prevent the fixed sleeve 800 from rotating together with the coaxial cable 950 within the internal space 310.

In the present invention, the conductive contact pin 210 corresponds to a "conductive contact," the center contact pin 211 corresponds to a "center contact," the main body 200 corresponds to a "main body," and the L-shaped shell 300 corresponds to an "L" the cover member 500 corresponds to a "cover member", the insulating bush 410 corresponds to an "insulating member", the internal contact pin 420 corresponds to an "internal contact pin", and the coaxial cable 950 corresponds to a "coaxial cable", the shell window 360 corresponds to a "shell window", the TV terminal 100 corresponds to a "TV terminal", the disc spring 910 corresponds to a "disc spring", and the C ring 920 corresponds to " C-ring", the biting part 525 corresponds to a "biting part", the notch part 330 corresponds to a "notch", the pair of shaft parts 320 corresponds to a "pair of convex parts", The pair of rotation holes 590 corresponds to a "pair of holes", the protrusion 340 corresponds to a "protrusion", the core wire 970 corresponds to a "core wire", the hole 575 corresponds to a "recess or hole", The fixed sleeve 800 corresponds to a "ring member".

Although the preferred embodiments of the present invention are as described above, the present invention is not limited thereto. It will be appreciated that various other embodiments may be made without departing from the spirit and scope of the invention. Further, in this embodiment, the functions and effects of the configuration of the present invention are described, but these functions and effects are merely examples and do not limit the present invention.

100 TV terminal 200 Body part 210 Conductive contact pin 300 L-shaped shell 320 Pair of shaft parts 330 Notch part 340 Convex part 360 Shell window 410 Insulating bush 420 Internal contact pin 500 Cover member 525 Biting part 575 Hole 590 Pair of turns Moving hole 800 Fixed sleeve 910 Disc spring 920 C ring 950 Coaxial cable 960 Gland part 970 Core wire

Claims (7)

a main body having a center contact, a substrate, and a conductive contact;
one L-shaped shell connected to the main body and inserted into only one side of the main body, or a plurality of L-shaped shells inserted into one side and the other side, respectively;
a cover member pivotally supported on one end side of the L-shaped shell and capable of being opened and closed;
an internal contact pin held apart from an inner wall of the L-shaped shell by an insulating member provided inside the L-shaped shell;
a shell window through which the connection between the internal contact pin and the core wire of the coaxial cable to be inserted is visible;
The cover member makes the shell window visible when opened, closes the shell window when closed, and fixes the outer sheath of the coaxial cable. a disc spring provided between the main body and the other end of the L-shaped shell;
The TV terminal according to claim 1, wherein the other end side of the L-shaped shell further includes a C ring for preventing insertion and removal from the main body. The outer shape of a part of the casing on the other end side of the L-shaped shell is cylindrical,
The outer shape of the casing on the one end side of the L-shaped shell has a rectangular cylindrical shape,
2. The TV terminal according to claim 1, wherein the cover member has a U-shaped cross section and has a shape capable of accommodating the rectangular cylindrical shape. The cover member has a biting part that bites into the outer skin of the coaxial cable,
The L-shaped shell has a notch on the one end side, and when the coaxial cable is closed, the biting part bites into the coaxial cable through the notch. TV terminal. A pair of convex portions are provided on the one end side of the L-shaped shell, and are rotatable by fitting into the pair of holes of the cover member,
2. The TV terminal according to claim 1, wherein a protrusion is provided on the other end side of the L-shaped portion of the L-shaped shell, and maintains the closed state by fitting into a recess or hole of the cover member. The inner cylinder of the L-shaped shell communicates from the one end side to the other end side,
The inner contact pin enclosed in the transparent or translucent insulating member is disposed in the inner cylinder,
The TV terminal according to claim 1, wherein the TV terminal is held apart from an inner wall of the L-shaped shell. further comprising a ring member insertable into the inner cylinder on one end side of the L-shaped shell,
The ring member has a structure that allows electrical conduction to the outer conductor of the coaxial cable, and has a function of preventing the internal contact pin inserted into the inner cylinder on the one end side of the L-shaped shell and the insulating member from coming off. The TV terminal according to claim 6, comprising: