JP4789858B2 - Series unit - Google Patents

Description

  The present invention relates to a serial unit mainly used in a television reception system, and particularly relates to a structure of a serial unit having good workability particularly when an existing serial unit is renewed.

  Conventionally, there is a so-called direct-attached type series unit that uses a coaxial socket seat as an outlet terminal (also referred to as a TV terminal) and directly connects a coaxial cable whose end is processed to a predetermined size as an input terminal and an output terminal. It is known (see, for example, Patent Document 1).

  In recent years, in order to receive not only terrestrial television broadcasts but also satellite broadcasts, it is necessary to pass signals in the intermediate frequency band output from the satellite converter, and the series units are also required to have ultra-wideband frequency characteristics. Yes. For this reason, not only outlet terminals but also series units using coaxial connector seats having excellent high-frequency characteristics and shielding properties are mainly used for input terminals and output terminals.

In this coaxial plug type serial unit, an outlet terminal plug seat is provided on the front surface of the housing formed in a substantially rectangular parallelepiped (the surface disposed along the wall surface of the room), and the flat bottom surface of the housing. In general, the one having a shape in which at least one plug is provided in a protruding manner (see, for example, Patent Document 2).
Japanese Patent No. 3066542 JP 2000-173730 A

  By the way, at present, terrestrial digital broadcasting using the UHF band has started broadcasting in various places, and in 2011, terrestrial analog broadcasting is in a state of ending. However, when trying to receive terrestrial digital broadcasts in a receiving system configured using a conventional direct-attached series unit, external interference radio waves and the like are mixed from the direct-attached part with low shielding properties, and so on. There has been a problem that specific block noise may appear in the video or the video may be blocked.

  Therefore, by replacing the direct-attached series unit with a series unit having excellent high-frequency characteristics and shielding properties (good immunity characteristics) as shown in Patent Document 2 above, terrestrial digital images with beautiful images without interference can be obtained. It is possible to provide broadcasting.

  In addition, as shown in the conventional example, the series unit is generally attached to the outlet box or switch box installed on the wall, and the storage space is limited to a very narrow frontage and depth. It is space. Therefore, the coaxial cable that has been routed around the wall cannot be routed so that it can be stored in the switch box, etc., leaving the extra length, and the coaxial cable is installed with the optimum dimensions for mounting the direct-attached series unit. Will be. That is, the coaxial cable drawn into the switch box cannot be pulled out further, and the position and direction of the drawing cannot be changed.

  When the direct connection type is replaced with the coaxial connector seat type, the F-type coaxial for enabling connection with the coaxial connector seat at the end of the coaxial cable removed from the direct connection type serial unit. It is necessary to install a cable connector.

  In this case, specifically, after the front end portion of the coaxial cable directly attached is cut with a nipper or the like, the front end portion of the coaxial cable is processed and attached to a predetermined length corresponding to the F-type coaxial cable connector. As a result, the coaxial cable to which the connector is attached is shorter and has no margin.

  Therefore, depending on the wiring condition of the existing coaxial cable, even if it is replaced with a coaxial connector seat type series unit, the coaxial cable cannot be connected, or even if it can be connected, it cannot be stored in a switch box, etc. Even if it can be stored, there is a problem that the work may require a lot of work.

Therefore, the present invention has been made to solve these problems, and an object of the present invention is to provide a series unit excellent in workability at the time of mounting on a wall surface.
Another object is to provide a series unit suitable for replacement of an existing direct-attached series unit.

  Another object is to provide a series unit with extremely good workability when replacing an existing direct-attached series unit.

In order to solve the above-mentioned problems, an invention according to a first configuration includes an input terminal and an output terminal comprising a central conductor and a cylindrical connector seat having an outer conductor provided concentrically with the central conductor, and a television terminal. And a unit housing that supports the input terminal, the output terminal, and the television terminal. Each terminal is electrically connected to the outer conductor via the unit housing, and the center conductor is a unit housing. In the series unit electrically connected in the space formed inside the body, both the input terminal and the output terminal are attached and detached so that the direction of the connection end with the unit housing and the terminal on the cable side are attached and detached. It has a shape that is orthogonal to the direction of the ends, and is configured as a movable terminal that can rotate at the connection end with the unit housing. Plane the central axis of the de-end forms, characterized in that it is arranged so as to intersect with each other.

The invention according to a second configuration is the series unit according to the first configuration , wherein any one of the movable terminals is such that a plane formed by the central axis of the detachable end by rotation of the movable terminal is a central axis of the television terminal It is arrange | positioned so that it may orthogonally cross.

The invention which concerns on 3rd structure is the input terminal and output terminal which consist of the cylindrical receptacle which has a center conductor and the outer conductor provided concentrically with this center conductor, the television terminal, and the said input terminal and output terminal And a terminal housing that supports a television terminal, and each terminal is electrically connected to the outer conductor through the unit housing, and the center conductor is in a space formed inside the unit housing. In the electrically connected series unit, at least one of the input terminal and the output terminal has a shape in which the direction of the connection end with the unit housing is orthogonal to the direction of the detachable end where the terminal on the cable side is attached or detached And is configured as a movable terminal rotatable at a connection end with the unit casing, and the central axis of the detachable end is formed by the rotation of the movable terminal. Surface, characterized in that it is arranged perpendicular to the central axis of the television terminal.

The invention according to a fourth configuration is the series unit according to any one of the first to third configurations , wherein the unit housing includes a first housing portion having a front surface on which the television terminal is formed, and It is formed in a shape provided with a second housing part that protrudes from a part of the back surface of the first housing part and has a space that is continuous with a space formed inside the first housing part. Among the input terminals and the output terminals, one terminal is disposed on the back surface of the first housing, and the other terminal is a side surface of the second housing portion erected from the back surface of the first housing portion. It is characterized by being arranged in.

The invention which concerns on 5th structure is the unit which supports the said input terminal and television terminal which consist of the cylindrical receptacle which has a center conductor and the outer conductor provided concentrically with this center conductor, and the said television terminal A series unit in which each terminal is electrically connected through the unit housing, and the center conductor is electrically connected in a space formed inside the unit housing. The input terminal has a shape in which the direction of the connection end with the unit casing is orthogonal to the direction of the detachable end to which the terminal on the cable side is attached and detached, and at the connection end with the unit casing The movable terminal is configured to be rotatable, and the plane formed by the central axis of the detachable end by the rotation of the movable terminal is disposed so as to be orthogonal to the central axis of the television terminal. To.

The invention according to a sixth configuration is characterized in that, in the series unit according to any one of the first to fifth configurations, a rotation range of the movable terminal is larger than 180 °.
The invention according to the seventh configuration is the series unit according to any one of the first to sixth configurations , wherein a connection end with the unit housing and a terminal on the cable side are attached and detached instead of the input terminal, A bifurcated terminal having a pair of detachable ends, one for input and the other for output.

According to an eighth aspect of the present invention, in the series unit according to any one of the first to seventh aspects, the F-type plug can be connected to an F-type plug in which the detachable end of the movable terminal is connected to the tip of the coaxial cable. It consists of a connector.

The invention according to a ninth configuration is the series unit according to any one of the first to eighth configurations , wherein the connecting end of the movable terminal is such that the outer conductor keeps an electrical connection with the unit casing, and The movable terminal is pivotally attached to an attachment hole formed in the unit housing so that the movable terminal rotates about the central axis of the connection end as a rotation axis.

The invention according to a tenth configuration is the series unit according to the ninth configuration , wherein the unit housing has a structure in which a pair of divided housings formed so as to divide the mounting hole into two are integrally fixed. The outer peripheral surface of the connection end of the movable terminal and the mounting hole of the divided housing are formed on the mounting hole forming edge, one of which is a groove portion and the other is a convex portion that engages with the groove. Side connection means and case side connection means are formed, and the movable terminal is pivotally attached to the unit case by sandwiching the terminal side connection means between the case side connection means respectively formed in the pair of divided cases. It is characterized by being assembled as possible.

According to an eleventh aspect of the present invention, in the series unit according to the ninth configuration, the connection end of the movable terminal is formed to have a larger diameter than the insertion portion through which the attachment hole can be inserted and the hole diameter of the attachment hole. A flange portion and a groove portion formed on the outer peripheral surface of the insertion portion and at a position separated from the flange portion by a length equal to the thickness of the wall surface of the unit housing at least in the formation portion of the mounting hole. The movable terminal can be pivotally attached to the unit housing by fixing a locking piece having a diameter larger than the diameter of the mounting hole in the groove portion in a state where the insertion portion is inserted through the mounting hole. It is characterized by being assembled in.

The invention according to a twelfth configuration is characterized in that, in the series unit according to any one of the first to eleventh configurations , a washer is inserted between the movable terminal and the unit housing. .

  In the present invention, both the input terminal and the output terminal are configured as rotatable movable terminals, and the rotation surfaces of the two are different from each other. For this reason, even if there is no allowance for the length of the lead-in wire drawn into the switch box, the outlet box or the like attached to the wall surface, the lead-in wire can be wired at the shortest distance by rotating the movable terminal.

  In other words, since there is no restriction on the length and arrangement direction of the lead wires already wired, connection work can be easily performed even in an extremely narrow place such as a switch box, thereby reducing the work time. Can be planned.

  Note that the lead-in wire drawn into a switch box, outlet box, etc. is generally wired along a plane orthogonal to the central axis of the TV terminal, so either one of the movable terminals can be moved. By arranging the plane formed by the central axis of the detachable end by the rotation of the terminal so as to be orthogonal to the central axis of the television terminal, the workability of the connection work can be improved more reliably.

  Note that both the input terminal and the output terminal do not necessarily have to be configured as movable terminals, at least one of which is configured as a movable terminal, and a plane formed by the central axis of the detachable end by the rotation of the movable terminal. Further, it may be arranged so as to be orthogonal to the central axis of the television terminal.

That is, as described above, in a situation where the lead-in wire is wired along a plane orthogonal to the central axis of the television terminal, even with such a configuration, the workability of the connection work can be sufficiently improved.
In this case, the input terminal may be a movable terminal and the output terminal may be omitted.

Further, by making the rotation range of the movable terminal larger than 180 °, it is possible to more appropriately cope with various lead-in wiring conditions.
Furthermore, by providing a bifurcated terminal instead of an input terminal, it is possible to flexibly cope with various types of receiving systems.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First Embodiment]
<Overall configuration>
1A to 1D are schematic views of a series unit according to the present invention. FIG. 1A is a rear view, FIG. 1B is a front view, and FIG. 1C is a side view. 1 (d) is a top view. In the following description, when directions are indicated, the direction in which the TV terminal 6 protrudes is defined as the front or front with reference to the state in FIG. 1B unless otherwise specified, and the left and right in FIGS. 1A and 1B. 1 and the vertical direction in FIG. 1D is the horizontal direction, the horizontal direction in FIGS. 1C and 1D is the front-rear direction, and the vertical direction in FIGS.

  As shown in FIGS. 1A to 1D, the series unit 1 is rotatable to a unit housing 3 formed of a box having a space for storing electronic components and the like, and to the back side of the unit housing 3. An L-shaped input terminal 5 attached to the unit housing 3, an L-shaped output terminal 8 similarly rotatably attached to the back side of the unit housing 3, and a television set provided on the front side of the unit housing 3. The terminal 6 is provided on the front side of the unit housing 3 so that the television terminal 6 is exposed and a terminal block 7 for fixing the series unit 1 to the switch box.

The series unit 1 is configured to branch the signal input from the input terminal 5 and output the signal from the output terminal 8 and the television terminal 6.
<Terminal block configuration>
As shown in FIG. 10, the terminal block 7 is a well-known one having a hole 71 for exposing the TV terminal 6 and a locking portion 73 for fixing the series unit to the mounting frame housed in the switch box. The series unit 1 is housed and fixed in a switch box provided on a wall or the like through this mounting frame.

<Configuration of each terminal>
2A is an enlarged side view of the input terminal 5 and the output terminal 8 as movable terminals that are rotatably attached to the unit housing 3, and FIG. 2B is a front view. (C) is the BB sectional drawing in FIG.2 (b).

In order to simplify the description, in the following description, the input terminal 5 is described, and the description of the output terminal 8 having the same configuration is omitted.
As shown in FIGS. 2A to 2C, the input terminal 5 has L-shaped center conductors 11 and 17 and a concentric (that is, circular cross-section) cylinder with respect to the center conductors 11 and 17. And an outer conductor 12 provided in the shape), and an F-type plug seat having an L-shaped outer shape.

  In the following, in the input terminal 5, of the two parts forming the L shape, the part attached to the unit housing 3 is the connecting end 16, and the part to which the F-type plug is attached / detached is the attaching / detaching end 15. Call it.

  Further, the center conductor 11 provided at the detachable end 15 is referred to as a first center conductor, and the center conductor 17 provided at the connection end 16 is referred to as a second center conductor, and the distal end portion 17a of the second center conductor 17 is connected to the connection end 16. The outer conductor 12 protrudes from the opening 19 formed to the outside of the outer conductor 12.

  A thread is formed on the outer peripheral surface of the outer conductor 12 at the detachable end 15. On the other hand, a through hole 16 a penetrating into the internal space of the outer conductor 12 is formed in the end surface on the side connected to the detachable end 15, and the through hole 16 a is closed by the lid body 14. Further, on the outer peripheral surface of the external conductor 12 at the connection end 16, a case side connection means (30 shown in FIG. 3) described later formed on the unit case 3 while maintaining electrical connection with the unit case 3. Terminal side connection means 20 for pivotal attachment is formed.

  The terminal-side connecting means 20 includes a pair of protrusions 21 formed over the entire circumference at the tip of the outer conductor 12 at the connection end 16, and a groove 22 is formed by the pair of protrusions 21. However, the protrusion 21 only needs to be appropriately disposed on the concentric circle from the central axis of the connection end 16 on the bottom surface of the groove 22, and is not necessarily provided over the entire circumference.

  The first central conductor 11 is manufactured by bending a thin plate-shaped metal material, and a receiving portion 11a having a spring property for receiving the central axis of the coaxial cable is formed on one end side. On the other hand, the second central conductor 17 is composed of a pin-shaped contact pin in which at least the tip portion 17a has a substantially circular cross section.

  And these center conductors 11 and 17 are arrange | positioned by the insulators 13 and 18 in the position of the center axis | shaft of the attachment / detachment end 15 and the connection end 16, respectively, and the edge part on the opposite side to the receiving part 11a and the front-end | tip part 17a. 11b and 17b are held in contact with each other. The insulators 13 and 18 are fixed inside the outer conductor 12 by known press-fitting or adhesive.

  Further, the end portions 11b and 17b of the central conductors 11 and 17 that are in contact with each other inside the outer conductor 12 are fixed by, for example, soldering or the like through the through holes 16a. Then, the lid body 14 is fixed by press-fitting or screwing so as to close the through hole 16a without any gap and to ensure good shielding properties.

  The TV terminal 6 (see FIG. 1B) is a cylindrical plug seat comprising a central conductor and an outer conductor provided concentrically with the central conductor (that is, a cylindrical shape having a circular cross section). And is configured similarly to the detachable end 15 of the input terminal 5.

<Unit housing configuration>
Next, as shown in FIGS. 1A to 1D, the unit housing 3 is protruded rearward from the first housing portion 3 a located in front and the back surface of the first housing portion 3 a. It consists of the 2nd housing | casing part 3b whose horizontal dimension is shorter than the 1st housing | casing part 3a. The first casing portion 3a and the second casing portion 3b are configured to form a continuous internal space. That is, the unit housing 3 is configured such that the cross-sectional shape along the surface orthogonal to the vertical direction is a substantially convex character.

  The input terminal 5 protrudes from one side surface (the left side surface in FIG. 1A) among the side surfaces located on both sides in the horizontal direction of the second housing portion 3b, and extends in the horizontal direction. It is attached so as to rotate around an axis. Further, the output terminal 8 protrudes from the input terminal 5 on the opposite side (the right side in FIG. 1A) across the second housing portion 3b and on the rear side surface of the first housing portion 3a. It is attached so as to rotate around an axis along the direction.

  That is, the input terminal 5 is configured such that a plane formed by the central axis of the detachable end 15 by rotating the input terminal 5 (hereinafter referred to as a rotation surface of the input terminal 5) is orthogonal to the horizontal direction. The terminal 8 has a plane (hereinafter referred to as a rotation surface of the output terminal 8) formed by the central axis of the detachable end by rotating the output terminal 8 in the front-rear direction (that is, the direction along the central axis of the television terminal 6). It is supposed to be orthogonal.

  Further, as shown in FIG. 1A, when the output terminal 8 is rotated, the side surface of the second housing portion 3b located at a place where the output terminal 8 comes into contact with the output terminal 8 to limit the rotation range of the output terminal is The inclination is provided so that the rotation range of the output terminal 8 exceeds 180 °. In the present embodiment, the rotation angle of the output terminal 8 is set to ± 110 ° with the horizontal direction set to 0 °, that is, configured to have a rotation range of 220 °.

  As will be described later, the unit housing 3 is composed of an upper housing 31 mainly opened at the lower surface and a lower housing 32 mainly opened at the upper surface, and the upper housing 31 and the lower housing divided into two vertically. It is formed by fixing the side housing 32 integrally. The unit housing 3 (that is, the upper housing 31 and the lower housing 32) is manufactured by molding a conductive material such as aluminum die casting, for example.

<Internal configuration of unit housing>
Next, the internal configuration of the unit housing 3 will be described with reference to FIGS.
3A is a cross-sectional view taken along the line AA in FIG. 1A. The lower housing 32 with the upper housing 31 removed, and the cross sections of the input terminal 5 and the television terminal 6 are shown. It is shown. FIG. 3B is a perspective view in which a part of the lower housing is broken. However, the outer shapes of the upper casing 31 and the lower casing 32 are partially simplified for easy viewing of the drawing.

  As shown in FIG. 3A, the lower housing 32 is a box that mainly has an upper surface (front side in the drawing) and has a space inside. When the upper housing 31 is combined with the upper housing 31, An opening end surface 32 a of the lower housing 32 that contacts the 31 is provided.

  Further, the front wall 33 of the lower housing 32 is integrally formed with a protrusion that forms the outer conductor of the television terminal 6. And inside the TV terminal 6, the center conductor 9 is hold | maintained with the insulator so that the front-end | tip part 9a may protrude in the housing | casing inside.

  In a space formed inside the lower housing 32, a printed wiring board 50 in which electronic components are incorporated is assembled. The printed wiring board 50 is fixed to a plurality of protruding pieces 38 formed inside the lower housing 32 by soldering or the like. In other words, the electrical connection between the ground-side conductor formed on the printed wiring board 50 and the lower housing 32 is ensured via the protruding piece 38. Further, the distal end portion 9a of the central conductor 9 of the television terminal 6 is connected to a signal-side conductor formed on the printed wiring board 50 by soldering or the like.

  And in the lower housing | casing 32, the position corresponding to the side surface of the 2nd housing | casing part 3b used as the attachment position of the input terminal 5 is a semicircle from the opening end surface 32a, as shown in FIG.3 (b). A lower concave portion 30a is formed by cutting the casing into a shape.

  Further, the upper casing 31 is also formed with an upper recess 30a (indicated by a broken line in the drawing) at a position facing the lower recess 30a, and the upper casing 31 and the lower casing 32 are combined. Thus, the concave portions 30a are configured to form the housing side connection means 30 formed of a substantially circular hole. A ring-shaped wall 30b having a constant thickness is formed on the entire periphery of the hole constituting the housing-side connecting means 30.

Note that such a case side connection means 30 is also formed on the back surface of the first case portion 3a where the output terminal 8 is attached.
When the upper casing 31 and the lower casing 32 are fixed together, the ring-shaped wall 30b formed in the lower recess 30a of the lower casing 32 forming the casing-side connecting means 30 is The input terminal 5 is placed so that the groove 22 constituting the terminal-side connection means 20 of the input terminal 5 is fitted, and then the terminal-side connection is made to the ring-shaped wall 30b formed in the upper recess 30a of the upper housing 31. The input terminal 5 is pivotally attached to the unit casing 3 by assembling the upper casing 31 so that the groove 22 constituting the means 20 is fitted. The same applies to the output terminal 8.

  As shown in FIG. 3B, screw holes 34 having internal threads are formed in predetermined positions on the end surface 32 a of the lower housing 32, and these screw holes 34 are formed in the upper housing 31. A through-hole 35 that penetrates the upper housing 31 is formed at a position facing the.

The upper housing 31 and the lower housing 32 that are closed to each other are integrally fixed by inserting and screwing the screw rod 36 into the screw holes 34 and 35 from the upper housing 31 side.
Next, the connection between the central conductor 17 of the input terminal 5 and the output terminal 8 and the signal-side conductor formed on the printed wiring board 50 will be described with reference to FIGS.

  4A to 4C show the configuration of the connection terminal 55 which is a structure for drawing the central conductor 17 of the input terminal 5 and the output terminal 8 into the housing, and the central conductor 17 is connected to the connection terminal 55. FIG. It is explanatory drawing which shows the procedure to perform. FIG. 4D is a plan view of the connection terminal 55 fixed to the printed wiring board 50 as viewed from above in FIGS. 4A to 4C.

As shown in FIGS. 4A to 4D, a connection terminal 55 is provided on the printed wiring board 50 so as to face the position where the input terminal 5 and the output terminal 8 are attached.
The connection terminal 55 is composed of a pair of connection pieces 55a formed by bending a thin plate-like conductive material having elasticity, and each connection piece 55a is directed upward from the base 56 to the printed wiring board 50. The contact piece 57 is formed by bending. The contact piece 57 is connected to the base body 56 and urges the contact piece 57 toward the center conductor, and a slide for slidingly holding the center conductor 17 formed subsequent to the urging piece 57a. The holding portion 57b and a receiving portion 57c that expands upward from the sliding holding portion 57b are configured.

  And the connection terminal 55 is formed by arrange | positioning a pair of connection piece 55a which has such a structure facing each other. Each connection piece 55a is fixed to the printed wiring board 50 by inserting a fastening claw 54 projecting downward from the base body 56 into a through-hole formed in the printed wiring board 50 and soldering. ing.

  When the input terminal 5 is attached to the lower housing 32, the central conductor 17 advances toward the printed wiring board 50 while spreading the receiving portion 57c outward (see FIG. 4B). When the terminal-side connecting means 20 of the input terminal 5 is correctly placed on the housing-side connecting means 30 of the lower housing 32, the center conductor 17 is configured to be properly fitted in the sliding holding portion 57b.

  The contact piece 57 urged by the urging piece 57a holds the contact with the center conductor 17 well. Further, as described above, since the cross-sectional shape of at least the tip portion of the center conductor 17 is formed in a circular pin shape, good contact with the connection terminal 55 is maintained even when the center conductor 17 rotates.

<Effect>
Here, the attachment of the series unit 1 will be described, and the functions and effects of the series unit 1 will be described in detail.

 FIG. 5 is a schematic explanatory view showing a wiring state for attaching the series unit to the switch box. In particular, A-1 to A-3 in FIG. 5 are views showing a state in which the coaxial cable connector is assembled after the existing direct-attached series unit is removed and the leading end of each lead-in wire is reworked. B-1 to B-3 in FIG. 5 are wiring states of a conventional coaxial connector seat type series unit (referred to as the conventional product 1) formed so that both the input terminal and the output terminal protrude upward. FIG. C-1 to C-3 in FIG. 5 are fixed so that the input terminal protrudes upward, and only the output terminal can be rotated similarly to the input terminal 5 of the series unit 1 according to the present invention. It is a figure which shows the wiring state about the conventional coaxial connector seat type serial unit (it is called the conventional product 2) comprised in FIG. 5 D-1 to D-3 are diagrams showing a wiring state in the case of the series unit 1 according to the present invention.

  However, A-1, B-1, C-1, and D-1 in FIG. 5 show the case where the input-side lead wire and the output-side lead wire are arranged in the same direction. A-2, B-2, C-2, and D-2 show cases where the input-side lead wire and the output-side lead wire are arranged from above and below so as to be along the same axis line. A-3, B-3, C-3, and D-3 show cases where the input-side lead-in wire and the output-side lead-in wire are arranged in the vertical direction at different positions on the axis.

  It is assumed that the length of the lead-in wire on the input side is 7 cm and the length of the lead-in wire on the output side is 8 cm as experimental conditions, and each coaxial cable has a coaxial cable connector connected to the tip of S5CFB.

  First, when the attachment property of the conventional product 1 is evaluated, there is no problem in the attachment property as long as the lead-in wire is in the same direction as shown in B-1 in FIG. As shown in B-2 and B-3 in FIG. 5, when the lead-in wire is drawn along the same axis or from the vertical direction at a different position, it can be attached, but one coaxial cable is It can be installed with the condition that it cannot be installed unless it is long.

  Next, when the attachment property of the conventional product 2 is evaluated, there is no problem in the attachment property as long as the lead-in wire is in the same direction as indicated by C-1 in FIG. As shown in C-2 in FIG. 5, when the lead-in wire is drawn from the vertical direction so as to be along the same axis, it can be attached by drawing it with the output terminal facing upward as shown in (a). However, it is possible to attach with the condition that it cannot be attached unless one of the coaxial cables is long. If the output terminal is rotated downward as shown in (b), the connector can be easily connected, but when the series unit is stored, the coaxial cable is attached to the mounting frame mounting boss for mounting the series unit. There are cases where it cannot be stored by touching. Moreover, even if it can be accommodated, it is necessary to bend the cable abruptly, and an unreasonable force generated by this is applied to the detachable end of the connector connected to the leading end of the lead-in wire, which causes a problem of reliability. As shown by C-3 in FIG. 5, when the lead-in wire is drawn in from the vertical direction at a different position on the same axis, there is no problem in mounting.

  Next, when the attachment property of the series unit 1 of the present embodiment is evaluated, there is no problem in the attachment property as in the conventional product as long as the lead-in wire is in the same direction, as indicated by D-1 in FIG. As shown in D-2 in FIG. 5, when the lead-in wire is drawn from the vertical direction along the same axis, if the output terminal is rotated downward, when the series unit is stored, Since the output terminal is further inclined inward from the lower direction (in the series unit 1, it is further inclined inward by approximately 20 ° with respect to the position directly below). The direction is such that the coaxial cable does not touch the boss. As a result, it is not necessary to bend the lead-in wire suddenly, and an excessive force is not applied to the connecting / disconnecting end of the connector connected to the tip of the lead-in wire. Is possible. Next, as shown by D-3 in FIG. 5, when the lead-in line is drawn from the vertical direction at a different position, the output terminal faces the inlet direction of the lower lead-in line. It does not have to be processed into an S shape, and its connectivity is further improved.

  As described above, when the series unit 1 is housed in the switch box, the rotation surface of the input terminal 5 rotates vertically so that the rotation surface of the input terminal 5 is perpendicular to the opening surface of the switch box and toward the rear bottom surface of the switch box. The rotation surface of the output terminal 8 is parallel to the opening surface of the switch box, and the rotation range of the output terminal 8 is ± 90 ° or more when the horizontal direction is 0 ° (in the embodiment of the present application, ± 110 °).

  As a result, according to the series unit 1, the wiring can always be performed while keeping the minimum bending radius of the coaxial cable regardless of the direction in which the lead-in wire is drawn into the switch box, and the connection work is facilitated. Therefore, the work time can be shortened.

Further, the serial unit 1 remarkably shows its usefulness when renewal work is performed from the direct attachment type to the coaxial connector seat type.
That is, in order to reattach the coaxial cable connector to the leading end of the lead-in wire after removing the direct-attach type series unit, it is necessary to cut the processed portion of the lead-in wire, and it protrudes into the switch box after the connector is attached The service line will be shorter than the original.

  However, if the series unit 1 is used, even if the lead-in wire is short due to the rotation of the input terminal 5 and the output terminal 8 and the wide rotation range of the output terminal 8, the connectivity is not impaired. is there.

  Here, the suitable example of the renewal construction using the series unit 1 of this embodiment is demonstrated concretely. Terrestrial digital broadcasting using the UHF band was started, and in July 2011, terrestrial analog broadcasting is scheduled to end. When trying to receive this terrestrial digital broadcast, for example, if the already-wired television reception system uses a direct-attached series unit, the direct-attached part that is the detachable end of the series unit and the coaxial cable will interfere with external interference. When receiving radio waves, there may be problems such as block noise peculiar to digital broadcasting appearing in the video, or video being cut off when it is severe. Therefore, it is required to promptly make a reception system using a direct-attached type serial unit compatible with a terrestrial digital broadcast reception system. Therefore, if the serial unit according to the present invention is used for this renewal work, any receiving system can be changed to terrestrial digital correspondence quickly and easily at low cost.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.
6A to 6D are schematic views of the series unit 1A according to the present embodiment, in which FIG. 6A is a rear view, FIG. 6B is a front view, and FIG. 6C is a side view. FIG. 6 (d) is a top view.

Note that the series unit 1A is different from the series unit 1 only in a part of the configuration, and therefore, the description will focus on the parts having different configurations.
As shown in FIGS. 6A to 6D, the series unit 1A has a shape in which the unit housing 3 is composed only of the first housing portion 3a without the second housing portion 3b.

  Similarly to the output terminal 8, the input terminal 5 is pivotally supported on the back surface of the unit housing 3, and is arranged so that the rotation surface of the input terminal 5 is parallel to the back surface of the unit housing 3. Has been.

The series unit 1A configured in this manner is different from the series unit 1 of the first embodiment only in the rotation direction of the input terminal 5, and the same effect as the series unit 1 can be obtained.
One of the input terminal 5 and the output terminal 8 may be fixed so as not to rotate.

[Third embodiment]
Next, a third embodiment of the present invention will be described.
7A to 7D are schematic views of the series unit 1B according to the present embodiment. FIG. 7A is a rear view, FIG. 7B is a front view, and FIG. 7C is a side view. FIG. 7 and FIG. 7D are top views.

Note that the series unit 1B is different from the series unit 1 only in a part of the configuration, and therefore, the description will focus on parts having different configurations.
As shown in FIGS. 7A to 7D, the series unit 1B includes two connection portions (detachable ends) 15 connected to the outer conductor of the F-type plug instead of the input terminal 5, and has an outer shape. The configuration is the same as that of the series unit 1 except that a T-shaped forked terminal 95 is used.

Note that one of the bifurcated terminals 95 is used for input and the other is used for output.
According to the series unit 1B configured as described above, the movable range of the bifurcated terminal 95 is limited by the input terminal 5 of the series unit 1, but the same effect as that of the series unit 1 can be obtained.

Moreover, according to the serial unit 1B, since there are two output terminals, it is possible to flexibly configure various types of reception systems.
In this embodiment, the bifurcated terminal 95 is attached to the unit housing 3 so as to rotate about the central axis of the connection end 16 as a rotation axis. However, as in the series unit 1C shown in FIG. It may be attached so as to rotate about an axis orthogonal to the rotation axis of the end 16 and along the central axis of the detachable end 15, or it may be fixed so as not to rotate.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described.
The serial unit 1D of the present embodiment has the same outer shape as that of the first embodiment, and the structure of the portion that pivotally attaches the input terminal 5 (the same applies to the output terminal 8) to the unit housing 3 is the first. Since this embodiment is only partially different from that of the first embodiment, this different portion will be mainly described.

  9A is a cross-sectional view of the series unit 1D (corresponding to a cross-sectional view taken along line AA in FIG. 1A), FIG. 9B is a schematic diagram for explaining the sliding member, and FIG. FIG. 4 is a perspective view when two sliding members are combined.

  As shown in FIG. 9A, a sliding member 40 made of an elastic conductive material is inserted into one or both of the side surface of the ring-shaped wall 30b and the side surface of the groove portion 22 (only the outer side in the figure). Yes.

In addition, the sliding member 40 is comprised by shape | molding a semicircle-shaped elastic metal material to a corrugation, as shown in FIG.9 (b).
The sliding member 40 is connected to the terminal-side connecting means 20 together with the ring-shaped wall 30b constituting the casing-side connecting means 30 when the input terminal 5 is assembled to the recess 30a of the upper casing 31 and the lower casing 32. Is sandwiched between the grooves 22 constituting the. In addition, when the unit casing 3 is assembled by sandwiching the sliding members 40 one by one in the respective casings 31 and 32, the sliding members 40 are vertically aligned as shown in FIG. 9C. It is constituted in a substantially circular shape and is attached between the outer side of the side surface of the ring-shaped wall 30b and the groove portion 22 side surface.

  According to the series unit 1D of the present embodiment configured as described above, the sliding member 40 can smoothly rotate the input terminal 5 and the output terminal 8, and the input terminal 5 and the output terminal 8 The electrical contact with the unit housing 3 is improved, and the shielding property can be improved.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described.
FIG. 11 is a perspective view showing the series unit 1E with the terminal block 7 removed.

  As shown in FIG. 11, the series unit 1E of the present embodiment is the first embodiment regarding the outer shape of the unit housing 103, the arrangement of the input terminal 105, the output terminal 108, and the TV terminal 106, and the configuration of the TV terminal 106. It is the same as that of the form.

  However, since the division structure of the unit casing 103, the configuration of the input terminals 105 and the output terminals 108, and the pivot attachment structure of these terminals 105 and 108 to the unit casing 103 are different from those in the first embodiment, The explanation will focus on the different parts.

<Configuration of input terminal and output terminal>
12A is an enlarged side view of the input terminal 105 and the output terminal 108 shown in FIG. 11, FIG. 12B is a front view, and FIG. 12C is B- in FIG. It is B line sectional drawing.

In order to simplify the description, the following description will be made on the input terminal 105, and description of the output terminal 108 having the same configuration will be omitted.
As shown in FIGS. 12A to 12C, the input terminal 105 is provided with a central conductor 111 connected in an L shape and concentric with the central conductor 111 (that is, a cylindrical shape having a circular cross section). The outer conductor 112 is made of an F-type plug seat having an L-shaped outer shape. In the following, in the input terminal 105, of the two parts forming the L-shape, the part attached to the unit housing 103 is the connecting end 116, and the part to which the F-type plug is attached / detached is the attaching / detaching end 115. That's it.

  A thread is formed on the outer peripheral surface of the outer conductor 112 at the detachable end 115. On the other hand, the outer peripheral surface of the outer conductor 112 at the connection end 116 is connected to case side connection means (130 shown in FIG. 13), which will be described later, formed on the unit case 103 while maintaining electrical connection with the unit case 103. Terminal side connection means 120 for pivoting is formed.

  The terminal-side connecting means 120 includes a flange 121 formed over the entire circumference of the outer conductor 112 at the connection end 116, and a groove formed over the entire circumference from the flange 121 to the distal end side of the connection end 116. 122.

  The central conductor 111 is manufactured by bending a thin plate-like metal material, and has spring properties for receiving contact pins having a circular central axis and a cross section of the coaxial cable at both ends thereof. Receiving portions 111a and 111b are formed.

  The center conductor 111 has two portions formed in a straight line forming an L-shape so that the insulators 113 and 118 are disposed at the positions of the central axes of the detachable end 115 and the connection end 116, respectively. Is retained.

  The insulators 113 and 118 are fixed inside the outer conductor 112 by known press-fitting or adhesive. Further, when the central conductor 111 and the insulators 113 and 118 are assembled to the external conductor 112, the central conductor 111 may be elastically deformed and inserted into the external conductor 112.

<Unit housing configuration>
As shown in FIG. 11, the unit housing 103 protrudes rearward from the first housing portion 103a positioned in the front and the back surface of the first housing portion 103a, as in the unit housing 3 in the first embodiment. And a second housing portion 103b having a horizontal dimension shorter than that of the first housing portion 103a. The first housing portion 103a and the second housing portion 103b form a continuous internal space. It is configured as follows.

Here, FIG. 13 is a perspective view showing the series unit 1E in an exploded state.
As shown in FIG. 13, the unit housing 103 includes a box-shaped case 131 having an opening on the upper surface and housing the printed wiring board 150, and a lid 132 that closes the opening of the box-shaped case 131. The case 131 and the lid 132 are integrally fixed.

  The box-shaped case 131 is provided with a mounting hole 130 as a housing side connection means formed by cutting the box-shaped case 131 into a circular shape at the mounting position of the input terminal 105 and the output terminal 108.

  The printed wiring board 150 is provided with connect pins 153 connected to the receiving portions 111b of the input terminal 105 and the output terminal 108. These connect pins 153 connect the printed wiring board 150 in the box-shaped case 131. It is arranged so as to penetrate the center of the mounting hole 130 when stored. In addition, the connect pin 153 is connected to a signal side conductor formed on the printed wiring board 150 by soldering or the like.

<Installation of input terminal and output terminal>
FIG. 14A is a cross-sectional view showing a structure in the vicinity of the attachment hole 130 for pivotally attaching the input terminal 105.

  As shown in FIG. 14A, the input terminal 105 is inserted into the attachment hole 130 at the tip side of the flange 121 formed at the connection end 116. Then, a disc spring washer 140 disposed between the outer surface of the box-shaped case 131 and the flange 121, and a locking piece (for example, an E-type retaining ring) attached to the groove 122 inside the box-shaped case 131 ) 145, the input terminal 105 is pivotally attached to the mounting hole 130.

  The disc spring washer 140 is a well-known one having a planar shape shown in FIG. 15A and a cross-sectional shape shown in FIG. The output terminal 108 is pivotally attached to the mounting hole 130 with the same structure.

<Effect>
As described above, in the series unit 1E, the Belleville spring washer 140 whose contact part is in line contact is provided at the part where the input terminal 105 and output terminal 108 are in contact with the unit housing 103 (hereinafter referred to as a pivoting part). It is arranged.

  Therefore, according to the series unit 1E, compared with the case where the sliding member 40 whose contact part is a point contact is used for this pivotally attached portion, the electromagnetic wave enters the unit housing 103 from the pivotally attached portion. Since it can be prevented more reliably, immunity can be further improved, and uniform elasticity can be obtained over the entire circumference of the pivoting portion, so that the input terminal 105 and the output terminal 108 are smoothly and smoothly rotated. be able to.

  In the present embodiment, the flange 121 is configured linearly so as to be parallel to the outer surface of the unit housing 103. However, as shown in FIG. You may comprise it in the shape which bends toward 122 side and forms a bag-shaped space with the outer surface of the unit housing | casing 103. FIG. In this case, the gap generated between the flange 121 and the outer surface of the unit housing 103 can be further reduced by the disc spring washer 140, and as a result, the immunity of the series unit 1E can be further improved.

  The structure of the unit housing 103, the input terminal 105, and the output terminal 108 described in the present embodiment, and the structure for pivotally mounting the input terminal 105 and the output terminal 108 are the same as those of the series unit 1 of the first embodiment. Not limited to this, the present invention may be applied to the series units 1A to 1C shown as the second to third embodiments.

[Sixth Embodiment]
Next, a sixth embodiment of the present invention will be described.
Since the series unit 1F of the present embodiment is only partially different in configuration from the series unit 1E of the fourth embodiment, this different part will be mainly described.

<Overall configuration>
FIG. 16 is a perspective view of the series unit 1F, and FIG. 17 is a perspective view showing the series unit 1F in an exploded state. However, all show the state where the terminal block 7 is removed. In FIG. 17, in order to make the drawing easy to see, the input terminal 105 and the output terminal 108 are shown in a simplified manner, and the disk spring washer 140 used for pivotal attachment of the input terminal 105 and the output terminal 108 is omitted.

As shown in FIGS. 16 and 17, the series unit 1 </ b> F includes two television terminals 106.
That is, the signal input from the input terminal 105 is branched into three and output from the output terminal 108 and the two television terminals 106.

  The unit housing 203 provided with the terminals 105, 106, 108 houses the first printed wiring board 150, and has the same outer shape as the unit housing 103 in the sixth embodiment. 203a and a second housing part 203b extending below the second printed wiring board 155 and configured to form a continuous internal space.

<Unit housing configuration>
The unit housing 203 has a box-like case in which openings are formed on the upper surface of the first housing portion 203a and the back surface of the second housing portion 203b so that the printed wiring boards 150 and 155 can be stored. 231 and lids 232 and 233 that close the openings. The box-shaped case 231 and the lids 232 and 233 are integrally fixed.

  The first printed wiring board 150 is configured in the same manner as the printed wiring board 150 in the sixth embodiment, except that it has a connection terminal (not shown) used for connection to the second printed wiring board 155, and The second printed wiring board 155 has a connection terminal (not shown) soldered to the connection terminal of the first printed wiring board 150 while the central conductor of the lower television terminal is fixed by soldering or the like. Have.

In addition, the configuration and pivot structure of the input terminal 105 and the output terminal 108 are the same as in the case of the sixth embodiment, and thus description thereof is omitted here.
<Effect>
As described above, the series unit 1F is configured in the same manner as the series unit 1E of the sixth embodiment except that two television terminals 106 are provided, and thus the same effect can be obtained. In addition to being able to provide a large number of television terminals 106, it can be suitably used.

[Other Embodiments]
In addition, this invention is not limited to the said embodiment, As shown below, it is also possible to implement suitably changing the structure of each part.

For example, in each of the above embodiments, the input terminals 5 and 105 and the output terminals 8 and 108 may be interchanged.
Further, the output terminals 8 and 108 are not necessarily required and may be omitted. However, in this case, it is necessary to configure the rotation surfaces of the input terminals 5 and 105 to be orthogonal to the central axis of the television terminals 6 and 106.

Three or more television terminals 6 and 106 may be provided.
Further, instead of the input terminal 105 of the fifth and sixth embodiments, the two-forked terminal 95 shown in the third embodiment may be used.

  Further, in the fifth and sixth embodiments, the insertion position of the disc spring washer 140 is not limited to the position between the flange 121 and the outer wall surface of the unit housings 103 and 203, but the inner wall surface of the unit housings 103 and 203. It may be between the locking pieces 145. Furthermore, in the fourth to sixth embodiments, the sliding member 40 or the disc spring formed by forming a semicircular elastic metal material into a corrugated shape at the pivotally attached portion of the input terminals 5 and 105 and the output terminals 8 and 108. Although the washer 140 is inserted, other washers may be inserted.

It is a schematic diagram of the series unit which concerns on 1st Embodiment of this invention, (a) is a rear view, (b) is a front view, (c) is a side view, (d) is a top view. (A) is the side view which expanded the input terminal and output terminal which are shown by FIG. 1, (b) is a front view, (c) is the BB sectional drawing in FIG.2 (b). (A) is the sectional view on the AA line in Fig.1 (a), (b) is the perspective view which fractured | ruptured a part of lower housing | casing. It is explanatory drawing which expanded a part which shows the connection method for drawing in the center conductor of an input terminal and an output terminal, and the inside of a housing | casing. It is a schematic explanatory drawing which shows the state of the wiring for drawing in a series unit in a switch box. It is a schematic diagram of the series unit which concerns on 2nd Embodiment of this invention, (a) is a rear view, (b) is a front view, (c) is a side view, (d) is a top view. It is a schematic diagram of the series unit which concerns on 3rd Embodiment of this invention, (a) is a rear view, (b) is a front view, (c) is a side view, (d) is a top view. It is a schematic diagram of the series unit which concerns on the modification of 3rd Embodiment, (a) is a rear view, (b) is a front view, (c) is a side view, (d) is a top view. It is explanatory drawing which shows 4th Embodiment of this invention, (a) is the sectional view on the AA line in Fig.1 (a), (b) is the schematic explaining a sliding member, (c) is sliding It is a perspective view when two members are combined. It is a perspective view which shows a terminal block. It is the perspective view which showed the series unit which concerns on 5th Embodiment of this invention in the state which removed the terminal block. (A) is the side view which expanded the input terminal and output terminal which are shown by FIG. 11, (b) is a front view, (c) is the BB sectional drawing in FIG.12 (b). It is a perspective view shown in the state which decomposed | disassembled the series unit which concerns on 5th Embodiment. (A) is sectional drawing which shows the structure of the attachment hole vicinity which pivotally attaches an input terminal, (b) is sectional drawing which shows the structure of the modification. (A) is a top view which shows the planar shape of a disk spring washer, (b) is sectional drawing which shows the cross-sectional shape. It is the perspective view which showed the series unit which concerns on 6th Embodiment of this invention in the state which removed the terminal block. It is a perspective view shown in the state which decomposed | disassembled the series unit which concerns on 6th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1A-1F ... Series unit, 3,103,203 ... Unit housing | casing, 3a, 103a, 203a ... 1st housing | casing part, 3b, 103b, 203b ... 2nd housing | casing part, 5,105 ... Input terminal, 6, 106 ... TV terminal, 7 ... Terminal block, 8, 108 ... Output terminal, 9, 11, 17, 111 ... Central conductor, 12, 112 ... External conductor, 13, 18, 113, 118 ... Insulator, 14 ... Lid 15, 115 ... attaching / detaching end 16, 116 ... connecting end 20, 120 ... terminal side connecting means 21 ... projection part 22, 122 ... groove part 30 ... housing side connecting means 30a ... recessed part 30b ... Ring-shaped wall, 31 ... upper housing, 32 ... lower housing, 33 ... front wall, 34 ... screw hole, 35 ... through hole, 36 ... screw rod, 38 ... projecting piece, 40 ... sliding member, 50 , 150, 155 ... printed wiring board, 54 ... fastening claws, 55 ... Connection terminal, 56 ... base, 57 ... contact piece, 57a ... urging piece, 57b ... sliding holding part, 57c ... receiving part, 71 ... hole, 73 ... locking part, 95 ... two-way terminal, 121 ... collar part , 130 ... mounting holes, 131, 231 ... box-shaped cases, 132, 232, 233 ... lids, 140 ... disc spring washers, 153 ... connect pins.

Claims (11)

As a terminal comprising a cylindrical contact plug seat, each having a central conductor and said center conductor and concentrically provided with the outer conductor, an input terminal, an output terminal for outputting a signal inputted from the input terminal for inputting a signal from outside And an outlet terminal that branches and outputs a part of the signal input from the input terminal, and is a series unit that supports these terminals in a unit housing ,
When the unit housing stores the series unit in a switch box installed on a wall surface, the center axis of the outlet terminal faces a direction intersecting the wall surface, and only the detachable end of the outlet terminal is the switch It has a fixing part that fixes the series unit to the switch box so as to be in a positional relationship exposed from the box,
Each terminal, the external conductor is electrically connected via said unit housing, said central conductor being electrically connected in the space formed inside the unit casing,
Each of the input terminal and the output terminal has a shape in which the direction of the connection end with the unit casing is orthogonal to the direction of the detachable end to which the terminal on the cable side is attached and detached, and the unit casing It is configured as a movable terminal that can rotate at the connection end, and is arranged so that the central axis of the detachable end of one of the terminals rotates along a plane that intersects the central axis of the outlet terminal. A series unit characterized by As a terminal comprising a cylindrical contact plug seat, each having a central conductor and said center conductor and concentrically provided with the outer conductor, an input terminal, an output terminal for outputting a signal inputted from the input terminal for inputting a signal from outside And an outlet terminal that branches and outputs a part of the signal input from the input terminal, and is a series unit that supports these terminals in a unit housing ,
When the unit housing stores the series unit in a switch box installed on a wall surface, the center axis of the outlet terminal faces a direction intersecting the wall surface, and only the detachable end of the outlet terminal is the switch It has a fixing part that fixes the series unit to the switch box so as to be in a positional relationship exposed from the box,
Each terminal, the external conductor is electrically connected via said unit housing, said central conductor being electrically connected in the space formed inside the unit casing,
At least one of the input terminal and the output terminal has a shape in which a direction of a connection end with the unit casing is orthogonal to a direction of an attachment / detachment end to / from which a cable-side terminal is attached / detached, and the unit casing The movable terminal is configured to be rotatable at a connection end thereof, and the central axis of the detachable end of the terminal is arranged so as to rotate along a plane intersecting the central axis of the outlet terminal . A series unit characterized by that. The unit housing projects from a first housing portion having a front surface on which the TV terminal is formed, and a part of the back surface of the first housing portion, and is provided inside the first housing portion. It is formed in a shape having a second housing part having a space connected to the formed space inside,
Of the input terminal and the output terminal, one terminal is disposed on the back surface of the first housing, and the other terminal is disposed on a side surface of the second housing portion erected from the back surface of the first housing portion. series unit according to any of claims 1 to 2, characterized in that it is arranged. In a series unit comprising an input terminal and an outlet terminal each consisting of a cylindrical plug seat having a center conductor and an outer conductor provided concentrically with the center conductor, and these terminals are supported by a unit housing ,
When the unit housing stores the series unit in a switch box installed on a wall surface, the center axis of the outlet terminal faces a direction intersecting the wall surface, and only the detachable end of the outlet terminal is the switch It has a fixing part that fixes the series unit to the switch box so as to be in a positional relationship exposed from the box,
Each terminal, the outer conductor is electrically connected through the unit casing, the center conductor is electrically connected in a space formed inside the unit casing ,
The input terminal has a shape in which the direction of the connection end with the unit casing is perpendicular to the direction of the detachable end to which the terminal on the cable side is attached and detached, and is rotatable at the connection end with the unit casing. is configured as a movable terminal, the series unit center axis of the detachable end of the terminal, characterized in that said rotating along a plane intersecting the central axis of the outlet terminals are arranged so as . The series unit according to any one of claims 1 to 4 , wherein a rotation range of the movable terminal is larger than 180 °. In place of the input terminal, a bifurcated terminal having a connection end to the unit housing and a pair of attachment / detachment ends to which a cable-side terminal is attached and detached, one used for input and the other used for output The series unit according to any one of claims 1 to 5 , wherein The series unit according to any one of claims 1 to 6 , wherein the detachable end of the movable terminal includes an F-type connector to which an F-type plug connected to a tip of a coaxial cable can be connected. The connecting terminal of the movable terminal is formed in the unit casing so that the outer conductor keeps an electrical connection with the unit casing, and the movable terminal rotates with the central axis of the connecting end as a rotation axis. The serial unit according to any one of claims 1 to 7 , wherein the serial unit has a structure pivotally attached to the mounting hole. The unit housing has a structure in which a pair of divided housings formed so as to divide the mounting hole into two parts are integrally fixed,
A terminal-side connection in which one of the outer peripheral surface of the connection end of the movable terminal and the mounting hole of the divided housing is formed as a groove portion and the other is a convex portion engaging with the groove. Means and housing side connection means are formed,
The movable terminal is pivotally attached to the unit casing by sandwiching the terminal side connecting means between casing-side connecting means respectively formed on the pair of divided casings. The series unit according to claim 8 . The connection end of the movable terminal is
An insertion portion through which the mounting hole can be inserted; and
A flange formed larger than the diameter of the mounting hole;
A groove formed on the outer peripheral surface of the insertion portion and at a position separated from the flange by a length equal to the thickness of the wall surface of the unit housing at least in the formation site of the mounting hole;
Have
The movable terminal is assembled to the unit housing in a pivotable manner by fixing a locking piece having a diameter larger than the diameter of the mounting hole in the groove while the insertion portion is inserted through the mounting hole. The series unit according to claim 8 , wherein Wherein between the movable terminal and the unit housing, the series unit according to any of claims 1 to 1 0, characterized in that the washer is inserted.

Images