JP5870363B2 - Equipment case - Google Patents

Description

  The present invention relates to a serial unit used for in-house hearing such as a television signal.

Generally, a terminal device called a serial unit having a terminal for outputting a television signal or the like is provided on the wall surface of each room of the building. From the serial unit, a television signal from a cable television system is provided. It is also possible to output a television signal from a television antenna installed on the roof of a building. A conventional example of this series unit is shown in FIGS. 36 (a) is a front view showing the configuration of the series unit 100, and FIG. 36 (b) is a side view showing the configuration of the series unit 100 in a KK sectional view.
In the series unit 100 shown in these drawings, the television signal is guided through the first coaxial cable 113 into the switch box 111 in which the series unit 100 is accommodated, and attached to the tip of the first coaxial cable 113. The first plug 113 a is attached to the first terminal 101 a of the series unit 100. The supplied television signal is branched in the serial unit 100, the branched television signal is output from the TV terminal 101b, and the branched television signal is output from the second terminal 101c. A second plug 114a attached to the tip of the second coaxial cable 114 is attached to the second terminal 101c of the series unit 100, and a television signal output from the second terminal 101c is transmitted through the coaxial cable 114. To be sent to the next serial unit or the like.

  The switch box 111 includes a bottom surface and side portions that rise from four sides of the bottom surface, and has a box shape with an open front surface. Bosses 116a and 116b are erected and formed at substantially the center of the short side of the switch box 111, and screw holes are formed in the bosses 116a and 116b. Then, the mounting frame 112 whose detailed configuration is omitted is arranged on the front surface of the switch box 111, and the two screws 115 are screwed to the bosses 116a and 116b, respectively, so that the mounting frame 112 is fixed to the switch box 111. Yes. Since the series unit 100 is attached to the attachment frame 112, the series unit 100 is accommodated in the switch box 111 by fixing the attachment frame 112 to the switch box 111. A cover 110 is attached to the front surface of the switch box 111. The cover 110 is a decorative cover that covers the front surface of the switch box 111. A rectangular through hole is provided in the center of the cover 110, and the main body of the rectangular series unit 100 in which the TV terminal 101b is provided in the through hole is fitted. It is inserted. Thus, a television signal is supplied to the television by attaching the plug attached to the tip of the coaxial cable derived from the television to the TV terminal 101b.

By the way, the switch box 111 is generally mounted so as to be embedded in the wall surface of the house, and the drawing position of the coaxial cable introduced into the switch box 111 varies depending on the wiring of the coaxial cable in the wall. Become. The aspect from which the drawing position of a coaxial cable differs is shown to Fig.37 (a)-(c). However, the cover 110 and the mounting frame 112 are omitted in FIGS.
A first drawing mode of the first coaxial cable 113 and the second coaxial cable 114 introduced into the switch box 111 is shown in FIG. 37 (a). In the first drawing mode, the first coaxial cable 113 is viewed from the upper left. The second coaxial cable 114 is drawn into the switch box 111 from the lower right. FIG. 37B shows the second drawing mode. In the second drawing mode, the first coaxial cable 113 is drawn into the switch box 111 from the upper left and the second coaxial cable 114 is drawn from the lower left. Furthermore, FIG. 37 (c) shows a third drawing mode. In the third drawing mode, the first coaxial cable 113 is drawn into the switch box 111 from the upper left and the second coaxial cable 114 is drawn from the upper right.

  37 (a) to 37 (c), in the first drawing mode shown in FIG. 37 (a), the bending of the coaxial cables 113 and 114 is small, and the stress applied to the coaxial cables 113 and 114 is not so large. . However, in the second drawing mode shown in FIG. 37 (b) and the third drawing mode shown in FIG. 37 (c), the bending of the coaxial cables 113 and 114 becomes large, and the stress applied to the coaxial cables 113 and 114 is increased. growing. Since the coaxial cables 113 and 114 are thicker than the illustrated thickness, the stress applied to the coaxial cables 113 and 114 becomes larger.

  In order to reduce the stress applied to the coaxial cable, a series unit in which a terminal can be rotated is conventionally known (see Patent Documents 1 to 3). In the conventional series unit in which the terminal can be rotated, the stress is applied to the coaxial cable because the terminal is rotated so as to reduce the stress applied to the coaxial cable attached to the terminal.

JP-A-2005-222804 JP 2008-91318 A JP 2011-150891 A

Since the conventional series unit that can rotate the terminal is configured to be able to rotate the terminal with respect to the main body of the serial unit, it is complicated to fix the terminal to the main body so as to be rotatable. There is a problem that a configuration is required, and thus there is a disadvantage that the price is high.
Accordingly, an object of the present invention is to provide a series unit that can simplify a configuration that can reduce stress applied to a coaxial cable and can reduce the price.

  This is the main feature of the present invention.

  According to the present invention, this can be done.

It is a top view which shows the structure of the series unit concerning 1st Example of this invention. It is a front view which shows the structure of the series unit concerning 1st Example of this invention. It is a side view which shows the structure of the series unit concerning 1st Example of this invention. It is a bottom view which shows the structure of the series unit concerning 1st Example of this invention. It is a bottom view which shows the rotation range of the series unit concerning 1st Example of this invention. It is a top view which shows the structure of the serial unit main body in the serial unit of 1st Example of this invention. It is a front view which shows the structure of the serial unit main body in the serial unit of 1st Example of this invention. It is a side view which shows the structure of the serial unit main body in the serial unit of 1st Example of this invention. It is a side view which shows the structure of the serial unit main body in the serial unit of 1st Example of this invention with AA sectional drawing. It is a side view which shows the structure of the serial unit main body in the serial unit of 1st Example of this invention with BB sectional drawing. It is a bottom view which shows the structure of the serial unit main body in the serial unit of 1st Example of this invention. It is a front view which shows the structure of the serial unit main body in the serial unit of 1st Example of this invention with CC sectional drawing. It is a top view which shows the structure of the terminal block in the series unit of 1st Example of this invention. It is a front view which shows the structure of the terminal block in the series unit of 1st Example of this invention. It is a bottom view which shows the structure of the terminal block in the series unit of 1st Example of this invention. It is a side view which shows the structure of the terminal block in the series unit of 1st Example of this invention. It is a front view which shows the structure of the terminal block in the series unit of 1st Example of this invention with DD sectional drawing. It is a side view which shows the structure of the terminal block in the series unit of 1st Example of this invention with EE sectional drawing. It is a front view which shows the structure of the case cover in the serial unit of 1st Example of this invention. It is a top view which shows the structure of the case cover in the serial unit of 1st Example of this invention. It is a side view which shows the structure of the case cover in the serial unit of 1st Example of this invention. FIG. 3 is an exploded view showing the configuration of the series unit of the first embodiment of the present invention. It is a top view which shows the assembly and rotation range in the serial unit of 1st Example of this invention. It is a top view which shows the structure of the series unit concerning 2nd Example of this invention. It is a side view which shows the structure of the series unit concerning 2nd Example of this invention. It is a front view which shows the structure of the series unit concerning 2nd Example of this invention. It is a bottom view which shows the structure of the series unit concerning 2nd Example of this invention. It is a bottom view which shows the rotation range of the series unit concerning 2nd Example of this invention. It is a top view which shows the structure of the case cover in the serial unit of 2nd Example of this invention. It is a side view which shows the structure of the case cover in the serial unit of 2nd Example of this invention. It is a front view which shows the structure of the case cover in the serial unit of 2nd Example of this invention. It is a bottom view which shows the structure of the case cover in the serial unit of 2nd Example of this invention. It is a side view which shows the structure of the case cover in the serial unit of 2nd Example of this invention by FF sectional drawing. It is a front view which shows the structure of the case cover in the serial unit of 2nd Example of this invention with GG sectional drawing. It is an exploded assembly figure which shows the structure of the serial unit of 2nd Example of this invention. It is the front view and side view which show the structure of the switch box provided with the conventional serial unit. It is a figure which shows the drawing-in mode of the coaxial cable to the switch box provided with the conventional serial unit.

The configuration of the series unit 1 according to the first embodiment of the present invention is shown in FIGS. FIG. 1 is a plan view showing the configuration of the series unit 1 according to the first embodiment of the present invention, FIG. 2 is a front view showing the configuration of the series unit 1, and FIG. 3 is a side view showing the configuration of the series unit 1. FIG. 4 is a bottom view showing the configuration of the series unit 1.
The series unit 1 according to the first embodiment of the present invention shown in these drawings includes a die-cast metal series unit body 10, a molded resin terminal block 20, and a lower surface of the series unit body 10. It is comprised from the metal case cover 30 fitted. The series unit body 10 is fitted to the terminal block 20, but the series unit body 10 is rotatable with respect to the terminal block 20 in a predetermined angle range. The series unit main body 10 includes a side wall portion that surrounds four sides and an upper surface portion provided on the upper surface of the side wall portion, and the lower surface is opened. The space surrounded by the side wall portion and the upper surface portion is a storage space for the circuit board on which the branch circuit is assembled. A first input / output terminal 14a is provided so as to protrude from the right side of the side wall portion on one long side, and a second input / output terminal 14c is provided so as to protrude from the right side of the side wall portion facing this side wall portion. It has been. That is, the first input / output terminal 14a and the second input / output terminal 14c are provided at corners facing each other. The television signal input from the first input / output terminal 14a or the second input / output terminal 14c is branched by a branch circuit on a circuit board accommodated in the accommodation space, and from the TV terminal 14b provided on the upper surface portion. A branched television signal is output. Further, the branched television signal is output to the next series unit from the first input / output terminal 14a or the second input / output terminal 14c to which no television signal is input. Further, a case cover 30 made of a metal plate is fitted to the lower surface of the series unit main body 10 to close the opening of the storage space.

  The terminal block 20 includes a rectangular base body 21 having an open bottom surface, and has mounting portions 24 that protrude from both sides of the base body 21. Engaging claws 24a are formed on both sides of the tip of each mounting portion 24 so as to protrude. When the series unit 1 is attached to the attachment frame 112 attached to the front surface of the switch box 111 shown in FIG. 36, the engagement claw 24a is engaged with the engagement portion of the attachment frame 112, and the series unit 1 is fixed to the attachment frame. Will come to be. A through-hole is formed in the bottom surface at the substantially center of the base body 21, and a cylindrical recess is formed following the through-hole. The TV terminal 14b is inserted into the through hole and disposed in the cylindrical recess. In addition, a U-shaped rectangular protruding portion 23a is formed in contact with the upper surface of the mounting portion 24 on the side wall portion formed by protruding the mounting portion 24 in the base body portion 21, and the inside of the rectangular protruding portion 23a. A long and narrow engagement groove 23b is formed. There are several types of mounting frames 112 attached to the front surface of the switch box 111, and the mounting frame 112 that does not have an engaging portion with which the engaging claw 24a is engaged is fitted into the engaging groove 23b. It has an engaging piece. Then, when the series unit 1 is attached, the series unit 1 is fixed to the attachment frame 112 when the engagement piece of the attachment frame 112 is crimped into the engagement groove 23b.

  Further, a side wall portion is extended below the attachment portion 24 to form a downward extension portion 25. A long groove 25a that is elongated in the longitudinal direction is formed substantially at the center of the downward extending portion 25 so as to penetrate the wall portion. A disc portion (described later) formed on the base of the TV terminal 14b of the series unit body 10 is slidably contacted with the long groove 25a so that the series unit body 10 does not come out of the terminal block 20. It can rotate with respect to the terminal block 20 in a predetermined angle range. A predetermined angular range α that can be rotated is shown in FIGS. 5 (a) and 5 (b) are bottom views of the series unit 1. When the unit is rotated clockwise as viewed from the bottom like the series unit body 10 indicated by the two-dot chain line in FIG. It can be rotated. Moreover, when it rotates counterclockwise seeing from the lower surface like the serial unit main body 10 shown with the dashed-two dotted line of FIG.5 (b), it can be rotated to the predetermined angle range (alpha). The predetermined angle range α is about 40 °. As described above, since the series unit body 10 can be rotated with respect to the terminal block 20, stress applied to the coaxial cable attached to the series unit 10 can be reduced. Moreover, since the series unit main body 10 itself is rotatable with respect to the terminal block 20, the configuration can be simplified and the price can be reduced.

Next, the detailed structure of the series unit main body 10 concerning the series unit 1 of 1st Example of this invention is shown in FIG. 6 thru | or FIG. FIG. 6 is a plan view showing the configuration of the series unit body 10, FIG. 7 is a front view showing the configuration of the series unit body 10, FIG. 8 is a side view showing the configuration of the series unit body 10, and FIG. FIG. 9 is a side view showing the configuration in the AA cross-sectional view, FIG. 9 is a side view showing the configuration of the series unit main body 10 in the BB cross-sectional view, and FIG. 11 is a bottom view showing the configuration of the series unit main body 10. The front view which shows the structure of the serial unit main body 10 with CC sectional drawing is shown in FIG.
The serial unit main body 10 according to the serial unit 1 of the first embodiment of the present invention shown in these drawings is formed by metal die casting, and the serial unit main body 10 includes a side wall 15 surrounding the four sides, and a side wall. 15 is provided with a main body case portion 11 having an upper surface portion 17 provided on the upper surface of the surface 15 and having an open lower surface. The space of the main body case portion 11 surrounded by the side wall portion 15 and the upper surface portion 17 is a storage space for storing a circuit board on which a branch circuit is assembled. The first input / output terminal 14a is provided so as to protrude outward from the right side of the side wall 15 on one long side, and protrudes outward from the right side of the side wall 15 facing the side wall 15. A second input / output terminal 14c is provided. That is, the first input / output terminal 14a and the second input / output terminal 14c are provided at corners facing each other.

  In addition, the base portions of the first input / output terminal 14a and the second input / output terminal 14c also protrude inside the side wall portion 15, and the side wall on which the first input / output terminal 14a and the second input / output terminal 14c are formed. A part on the corner side on the outer surface of the portion 15 is cut away to form a cutout portion 15a. Further, a TV terminal 14b is formed so as to protrude outward from substantially the center of the upper surface portion 17. The first input / output terminal 14a, the TV terminal 14b, and the second input / output terminal 14c are each formed with a through hole connected to the storage space. By inserting a cylindrical insulator that holds the central conductor into the through hole, the first input / output terminal 14a, the TV terminal 14b, and the second input / output terminal 14c are coaxial connectors.

  Between the upper surface portion 17 of the main body case portion 11 and the TV terminal 14 b, a disk portion 13 is formed by cutting out both sides of the disk, and a ring shape is formed between the disk portion 13 and the upper surface portion 17. A groove portion 16 is formed. The diameter of the disc portion 13 is substantially the same as the length of the long side of the main body case portion 11, and both sides of the disc portion 13 are notched on the long side of the main body case portion 11. It protrudes slightly outward from the surface of the side wall 15 on the long side. In addition, an elongated circular protrusion 12 that protrudes one step upward from the upper surface of the disk portion 13 is formed, and engagement protrusions 13 a having a predetermined width protruding upward from the circular protrusion 12 are formed on both sides of the circular protrusion 12. Are formed respectively. The engaging protrusion 13a is formed on the short side of the main body case 11, and the outer surface of the engaging protrusion 13a is a slope whose thickness gradually decreases as it goes upward. Moreover, the height of the engaging protrusion 13a is about 2 mm. The circular projecting portion 12 and the disc portion 13 are substantially concentric with the TV terminal 14b and are formed at the roots thereof.

On the inner surface on the short side of the side wall portion 15 of the main body case portion 11, two elongated ribs 15c are formed side by side in the vertical direction. The sandwiching ribs 15c are formed on the side wall portions 15 facing each other, and the height of one sandwiching rib 15c is higher than that of the other sandwiching rib 15c. The circuit board is inserted between two sets of sandwiching ribs 15c formed on the side wall 15 facing each other, and the tip of the taller sandwiching rib 15c is soldered to the ground pattern formed on the circuit board. Is done. Furthermore, a predetermined pattern formed on the circuit board and a central conductor held by a cylindrical insulator inserted into the first input / output terminal 14a, the TV terminal 14b, and the second input / output terminal 14c are connected to the lead. It is electrically connected (soldered) via a wire. As a result, the circuit board can be fixed in the storage space of the main body case 11. In addition, the lower part of the side wall part 15 on the short side is formed in a mountain shape, and the height of the side wall part 15 on the long side is considerably low except for the part where the input / output terminals 14a and 14c are formed. Yes. Thereby, the soldering operation to be performed on the stored circuit board can be easily performed without being obstructed by the side wall portion 15.
Further, on the inner surface of the side wall 15 on the long side of the main body case 11, the middle between the first input / output terminal 14 a and the side wall 15 on the short side and the second input / output terminal 14 c on the short side wall 15. The cover pressing ribs 15d are formed in the middle in the vertical direction. When the case cover 30 is fitted to the lower surface of the series unit main body 10, the end portion of the case cover 30 is sandwiched between the cover pressing rib 15 d and the inner surface of the side wall portion 15.

Next, FIG. 13 thru | or FIG. 18 shows the detailed structure of the terminal block 20 concerning the series unit 1 of 1st Example of this invention. FIG. 13 is a plan view showing the configuration of the terminal block 20, FIG. 14 is a front view showing the configuration of the terminal block 20, FIG. 15 is a bottom view showing the configuration of the terminal block 20, and FIG. FIG. 16 is a front view showing the configuration of the terminal block 20 in a DD sectional view, and FIG. 18 is a side view showing the configuration of the terminal block 20 in an EE sectional view.
The terminal block 20 according to the series unit 1 of the first embodiment of the present invention shown in these drawings is formed by resin molding, and includes a rectangular base body 21 having an open bottom surface. 21 have plate-like attachment portions 24 that respectively protrude from the side wall portion 23 on the short side. Engaging claws 24a are formed on both sides of the tip of each mounting portion 24 so as to protrude. When the series unit 1 is attached to the attachment frame 112 attached to the front surface of the switch box 111, the engagement claw 24 a is engaged with the engagement portion of the attachment frame 112 and the series unit 1 is fixed to the attachment frame 112. It becomes like this. A cylindrical recess 21b is formed at substantially the center of the base body 21. The cylindrical recess 21b is formed by a cylindrical protrusion 26 formed so as to dent the upper surface 22 of the base body 21 downward. Is formed. The bottom surface of the cylindrical protruding portion 26 is a ring-shaped bottom portion 26a, and a through hole 21c is formed in the approximate center of the ring-shaped bottom portion 26a. The TV terminal 14b is inserted into the through hole 21c and is disposed in the cylindrical recess 21b. In addition, a U-shaped rectangular protruding portion 23a is formed in contact with the upper side of the mounting portion 24 on the side wall portion 23 formed by protruding the mounting portion 24 in the base body portion 21, and the rectangular protruding portion 23a An elongated engagement groove 23b is formed on the inner side. There are several types of mounting frames 112 attached to the front surface of the switch box 111, and the mounting frame 112 that does not have an engaging portion with which the engaging claw 24a is engaged is fitted into the engaging groove 23b. It has an engaging piece. When the series unit 1 is attached, the series unit 1 is fixed to the attachment frame 112 by crimping the engagement pieces of the attachment frame 112 into the engagement grooves 23b.

  Further, the side wall portion 23 is extended below the attachment portion 24 to form a downward extension portion 25. A long groove 25 a that is substantially in the center of the downward extending portion 25 and is below the attachment portion 24 in the longitudinal direction is formed through the side wall portion 23. In the long groove 25 a, the periphery of the disc portion 13 formed at the base of the TV terminal 14 b of the series unit body 10 can be rotatably inserted, and the series unit body 10 is fitted to the terminal block 20. At this time, when the peripheral edge of the disc portion 13 is fitted into the long groove 25 a, the series unit body 10 can be rotated with respect to the terminal block 20 within a predetermined angle range without coming out of the terminal block 20. The shape of the lower surface of the downward extending portion 25 is a shape in which the central portion bulges outward as shown in FIG. 15, and the long groove 25a described above is formed in the bulged portion. Since the shape of the cross section of the side wall portion 23 on the short side is the same as the shape of the lower surface of the downward extending portion 25, the shape of the inner surface of the side wall portion 23 surrounding the four sides is indicated by a broken line in FIG. The shape is the inner surface 21d. That is, the four inner corners are arcuate. The space between the downward extending portions 25 provided facing each other is made wider than the width of the disk portion 13 of the cut portion of the disk portion 13 formed in the series unit body 10, and the downward extending portion 25. By rotating the series unit main body 10 disposed between them, the peripheral edge of the disc portion 13 is rotatably fitted in the long groove 25a.

Next, the structure of the case cover 30 according to the series unit 1 of the first embodiment of the present invention is shown in FIGS. A front view showing the configuration of the case cover 30 is shown in FIG. 19, a top view showing the configuration of the case cover 30 is shown in FIG. 20, and a side view showing the configuration of the case cover 30 is shown in FIG.
The case cover 30 is formed by processing a metal plate, and is fitted to the open lower surface of the series unit body 10 to close the lower surface of the series unit body 10. As shown in FIGS. 19 to 21, the case cover 30 has a side portion 30b bent in a substantially U shape, and an inclined portion 30c is formed at a corner between the bent side portion 30b and the upper portion 30a. Is formed. Thereby, the shape of the side surface of the case cover 30 is the same as the shape of the mountain-shaped extending portion 15 b formed on the lower side of the side wall portion 15 of the series unit body 10. Further, a notch 30d is formed at the left end of each side 30b. When the case cover 30 is fitted to the lower surface of the series unit body 10, the notch 30d is brought into contact with the outer peripheral surfaces of the first input / output terminal 14a and the second input / output terminal 14c. This is a notch for projecting the first input / output terminal 14 a and the second input / output terminal 14 c from the cover 30.

Next, FIG. 22 shows an exploded view showing a configuration of the series unit 1 of the first embodiment of the present invention, and FIG. 22 shows the assembly and assembly of the series unit 1 of the first embodiment of the present invention. Plan views showing the rotation range are shown in FIGS.
In order to assemble the series unit 1 of the first embodiment, first, the cylindrical insulator 40a in which the center conductor is supported is inserted into the first input / output terminal 14a of the series unit body 10, and the TV terminal 14b is inserted. The cylindrical insulator 40b in which the center conductor is supported is inserted, and further, the cylindrical insulator 40c in which the center conductor is supported is inserted into the second input / output terminal 14c. A coaxial connector that can be mounted. Next, the circuit board 41 is erected from the lower side into the storage space surrounded on all sides by the side wall 15 of the series unit main body 10 and inserted between the holding ribs 15 c formed on the facing side wall 15. Then, the ground pattern formed on the circuit board 41 is soldered to the tip of the taller holding rib 15c. Further, the terminals of the central conductors protruding from the rear portions of the cylindrical insulators 40a to 40c are soldered to predetermined patterns on the circuit board, respectively. Accordingly, the television signal input from the first input / output terminal 14a or the second input / output terminal 14c is branched by the branch circuit on the circuit board 41 and output from the TV terminal 14b. The case cover 30 is fitted to the lower surface of the series unit body 10 in this state. At this time, the lower edge of the side portion 30b of the case cover 30 is sandwiched between the cover pressing rib 15d and the side wall portion 15, and the series unit body 10 to which the case cover 30 is fitted has a shield structure.
Since the series unit main body 10 itself can be rotated with respect to the terminal block 20, the stress applied to the coaxial cable attached to the series unit 10 can be reduced, and the configuration is simplified and the price is reduced. Can be made cheaper.

  The series unit body 10 in this state is attached to the terminal block 20. In this case, as shown in FIG. 23 (a), in a state where the series unit main body 10 is rotated by about 90 ° with respect to the terminal block 20, the terminal block is arranged such that the upper surface of the circular protruding portion 12 contacts the ring-shaped bottom portion 26a. 20 is inserted from the lower surface. As a result, the TV terminal 14b of the series unit body 10 is inserted into the through hole 21c formed in the ring-shaped bottom portion 26a of the terminal block 20, and the disk portion 13 that is cut out on both sides is connected to the terminal It is inserted along the inner surface 21d of the table 20 and is disposed between the two downward extending portions 25. Further, the two engaging protrusions 13a formed to face the outer edge of the circular protrusion 12 of the series unit body 10 face each other with a slight gap on the inner surface 21d of the side wall 23 on the long side of the terminal block 20. To come. Next, when the series unit body 10 is rotated with respect to the terminal block 20, the two engaging protrusions 13a abut against the inner surface 21d of the side wall 23 facing each other. The side wall 23 is strongly pressed by the engagement protrusion 13a and elastically deforms to the outside, and the engagement protrusion 13a further rotates beyond the side wall 23, and the two engagements. The mating protrusion 13a faces the side wall 23 on the downward extension 25 side. At this time, the arc-shaped outer edge portion of the disk portion 13 is inserted into the long groove 25 a formed in the downward extending portion 25 of the terminal block 20. Thereby, the serial unit 1 of the first embodiment can be assembled.

  When the series unit 1 of the first embodiment is assembled, the series unit body 10 can be rotated with respect to the terminal block 20 within a predetermined angle range. This predetermined angle range is such that when the series unit body 10 is rotated counterclockwise with respect to the terminal block 20, the first input / output terminal 14a and the second input / output in the engaging protrusion 13a are shown in FIG. The terminal 14c can be rotated until the end opposite to the terminal 14c contacts the inner surface 21d on the long side of the terminal block 20. Further, when the series unit body 10 is rotated clockwise with respect to the terminal block 20, as shown in FIG. 23C, the first input / output terminal 14a and the second input / output terminal 14c side of the engagement protrusion 13a are provided. The end portion can be rotated until it comes into contact with the inner surface 21d on the long side of the terminal block 20. As described above, the predetermined angle range at this time is about 40 ° in the left direction and the right direction, respectively.

Next, the configuration of the series unit 2 according to the second embodiment of the present invention is shown in FIGS. 24 is a plan view showing the configuration of the series unit 2 according to the second embodiment of the present invention, FIG. 25 is a side view showing the configuration of the series unit 2, and FIG. 26 is a front view showing the configuration of the series unit 2. FIG. 27 is a bottom view showing the configuration of the series unit 2.
In the series unit 2 of the second embodiment of the present invention shown in these drawings, the terminal block 50 is configured to be vertically long, but the series unit body 10 has the same configuration as the series unit 1 of the first embodiment. Yes. Further, the case cover 30 has the same configuration as the series unit 1 of the first embodiment. Therefore, the description of the series unit body 10 and the case cover 30 is omitted, but the series unit 2 of the second embodiment of the present invention is made of a die-cast metal series unit body 10 and a molded resin product. The terminal block 50 and the case cover 30 made of a metal plate fitted to the lower part of the series unit body 10 are configured.

  In the series unit 2 of the second embodiment, the side wall portion is extended below the center portion of the base body portion 51 in the terminal block 50 to form the downward extension portion 55. An elongated groove 55a that is elongated in the longitudinal direction is formed substantially at the center of the downward extending portion 55 so as to penetrate the wall portion. The circular plate portion 13 formed at the base of the TV terminal 14b of the series unit main body 10 is slidably contacted with the long groove 55a so that the series unit main body 10 does not come out of the terminal block 50 and is predetermined. It can be rotated with respect to the terminal block 50 in the angle range. The predetermined angular range in which rotation is possible is shown in FIGS. 28 (a) and 28 (b) are bottom views of the series unit 2, which is about 40 ° when it is rotated clockwise as viewed from the bottom like the series unit body 10 indicated by the two-dot chain line in FIG. 28 (a). It can be rotated to a predetermined angle range. Further, like the series unit main body 10 indicated by a two-dot chain line in FIG. 28B, it can be rotated to a predetermined angle range of about 40 ° when it is rotated counterclockwise when viewed from the lower surface.

Next, the detailed structure of the terminal block 50 concerning the series unit 2 of 2nd Example of this invention is shown in FIG. 29 thru | or FIG. 29 is a plan view showing the configuration of the terminal block 50, FIG. 30 is a side view showing the configuration of the terminal block 50, FIG. 31 is a front view showing the configuration of the terminal block 50, and FIG. FIG. 32 is a side view showing the configuration of the terminal block 50 in the FF cross-sectional view, and FIG. 34 is a front view showing the configuration of the terminal block 50 in the GG cross-sectional view.
The vertically long terminal block 50 according to the series unit 2 of the second embodiment of the present invention shown in these drawings is formed by resin molding, and includes a rectangular base body 51 having an open bottom surface. The main body 51 is divided into three parts, an upper part, a central part and a lower part. A total of four plate-like attachment portions 54 projecting from both the upper and lower sides of the base body 51 are formed. Engaging claws 54a are formed on both sides of the tip of each mounting portion 54 so as to protrude. When the series unit 2 is attached to the attachment frame 112 attached to the front surface of the switch box 111, the engagement claw 54a is engaged with the engagement portion of the attachment frame 112 so that the series unit 2 is fixed to the attachment frame. become. A cylindrical recess 51b is formed at the center of the base body 51. The cylindrical recess 51b is formed by a cylindrical protrusion 56 that is formed so as to recess the upper surface 52 of the base body 51 downward. Is formed. The bottom surface of the cylindrical projecting portion 56 is a ring-shaped bottom portion 56a, and a through hole 51c is formed at substantially the center of the ring-shaped bottom portion 56a.

  The TV terminal 14b is inserted into the through hole 51c and is disposed in the cylindrical recess 51b. In addition, a U-shaped rectangular protruding portion 53a is formed on the side wall portion 53 formed so as to protrude from the upper portion and the lower portion of the base body portion 51 so as to be in contact with the upper side of the attaching portion 54. An elongated engagement groove 53b is formed inside the protrusion 53a. There are several types of mounting frames 112 attached to the front surface of the switch box 111, and the mounting frame 112 that does not have an engaging portion with which the engaging claw 54a is engaged is fitted into the engaging groove 53b. It has an engaging piece. When the series unit 2 is attached, the series unit 2 is fixed to the attachment frame 112 by crimping the engagement pieces of the attachment frame 112 into the engagement grooves 53b.

  Further, a side wall portion 53 is extended below the central portion of the base body portion 51 to form a downward extension portion 55. A long groove 55 a that is substantially in the center of the downward extending portion 55 and is below the attachment portion 54 in the longitudinal direction is formed through the side wall portion 53. In this long groove 55a, the periphery of the disc portion 13 formed at the base of the TV terminal 14b of the series unit body 10 can be rotatably fitted, and the series unit body 10 is fitted to the terminal block 50. At this time, when the peripheral edge of the disc portion 13 is fitted into the long groove 55 a, the series unit body 10 can be rotated with respect to the terminal block 50 within a predetermined angle range without coming out of the terminal block 50. The shape of the lower surface of the downward extending portion 55 is such that the center portion bulges outward as shown in FIG. 32, and the long groove 55a described above is formed in this bulged portion. Since the cross-sectional shape of the side wall 53 of the central portion of the base body 51 is the same as the shape of the lower surface of the downward extending portion 55, the inner surface of the side wall 53 of the central portion of the base main body 51 is formed. The shape is the shape of the inner surface 51d indicated by a broken line in FIG. 29 and indicated by a solid line in FIG. That is, the four inner corners are arcuate. The space between the downwardly extending portions 55 provided facing each other is wider than the width of the disc portion 13 formed on both sides of the series unit main body 10 and cut off. The plate portion 13 can be inserted and the series unit main body 10 is rotated after the insertion, whereby the peripheral edge of the disc portion 13 is rotatably fitted in the long groove 55a. In addition, as for the cross-sectional shape of the side wall part 53 in the upper part and the lower part of the base main body part 51, as shown by a broken line in FIG. 29 and a solid line in FIG.

Next, FIG. 35 is an exploded view showing a perspective view of the configuration of the series unit 2 of the second embodiment of the present invention.
In order to assemble the series unit 2 of the second embodiment, the cylindrical insulators 40a to 40c are inserted into the first input / output terminal 14a, the TV terminal 14b, and the second input / output terminal 14c of the series unit body 10, respectively. The terminal is a coaxial connector that can be fitted with a coaxial plug. Next, the circuit board 41 is attached to the storage space of the series unit main body 10 and the cylindrical insulators 40a to 40c are wired to the circuit board 41, and the case cover 30 is fitted to the lower surface of the series unit main body 10. Since these assembly steps are the same as those of the series unit 1 of the first embodiment, detailed description thereof will be omitted.

  Next, the serial unit main body 10 in which the cylindrical insulators 40 a to 40 c and the circuit board 41 are assembled and the case cover 30 is fitted is attached to the terminal block 50. In this case, the series unit main body 10 is rotated by about 90 ° with respect to the terminal block 50, and is inserted until the upper surface of the circular protruding portion 12 comes into contact with the ring-shaped bottom portion 56a from the lower surface of the central portion of the terminal block 50. Thereby, the TV terminal 14b of the series unit body 10 is inserted into the through hole 51c formed in the ring-shaped bottom portion 56a at the center of the terminal block 50, and the disk portion 13 in which both sides are notched. Is inserted between the downward extending portions 54 along the inner surface 51 d of the terminal block 50. Further, the two engaging protrusions 13a formed to face the outer edge of the circular protrusion 12 of the series unit main body 10 face the inner surface 51d of the side wall 53 of the center part of the terminal block 50 with a slight gap. It becomes like this. Next, when the series unit main body 10 is rotated with respect to the terminal block 50, the two engaging protrusions 13a come into contact with the inner surface 51d of the side wall 53 facing each other, but when the rotation further increases. The side wall 53 is strongly pressed by the engagement protrusion 13a and elastically deforms outward, and the engagement protrusion 13a further rotates beyond the side wall 53, and the two engagements. The mating protrusion 13a faces the side wall 53 on the downward extension 55 side. At this time, the arc-shaped outer edge portion of the disc portion 13 is inserted into the long groove 55 a formed in the downward extending portion 55 of the terminal block 50. Thereby, the serial unit 2 of 2nd Example can be assembled.

  When the series unit 2 of the second embodiment is assembled, the series unit body 10 can be rotated with respect to the terminal block 50 within a predetermined angle range. This predetermined angle range is such that when the series unit main body 10 is rotated counterclockwise with respect to the terminal block 50, the end of the engagement protrusion 13a opposite to the first input / output terminal 14a and the second input / output terminal 14c is The terminal block 50 can be rotated until it comes into contact with the inner surface 51d of the central portion. In addition, when the series unit body 10 is rotated clockwise with respect to the terminal block 50, the end portions on the first input / output terminal 14 a side and the second input / output terminal 14 c side of the engagement protrusion 13 a are the center of the terminal block 50. It can rotate until it contacts the inner surface 51d of the part. The predetermined angle range at this time is about 40 ° in the left direction and the right direction, respectively. Thus, since the series unit body 10 can be rotated with respect to the terminal block 50, the stress applied to the coaxial cable attached to the series unit 10 can be reduced. In addition, since the series unit body 10 itself is rotatable with respect to the terminal block 50, the configuration can be simplified and the price can be reduced.

Although only one series unit 1 according to the first embodiment of the present invention described above is attached to the center of the attachment frame 112, up to three series units 1 can be attached to the attachment frame 112. When a plurality of series units 1 are attached to the mounting frame 112, the decorative cover 110 that covers the front surface of the mounting frame 112 is replaced with a cover provided with a rectangular insertion hole corresponding to the plurality of series units 1. To do. Further, only one series unit 2 according to the second embodiment of the present invention can be attached to the attachment frame 112.
In the series unit according to the embodiment of the present invention described above, the first input / output terminal, the second input / output terminal,

DESCRIPTION OF SYMBOLS 1 Series unit, 2 Series unit, 10 Series unit main body, 11 Main body case part, 12 Circular protrusion part, 13 Disk part, 13a Engagement protrusion part, 14a 1st input / output terminal, 14b TV terminal, 14c 2nd input / output Terminal, 15 Side wall part, 15a Notch part, 15b Angle extending part, 15c Clamping rib, 15d Cover pressing rib, 16 Ring-shaped groove part, 17 Upper surface part, 20 Terminal block, 21 Base body part, 21b Cylindrical recessed part, 21c Through hole 21d inner surface, 22 upper surface portion, 23 side wall portion, 23a rectangular projection portion, 23b engagement groove, 24 mounting portion, 24a engagement claw, 25 downward extension portion, 25a long groove, 26 cylindrical projection portion, 26a ring-shaped bottom portion, 30 Case cover, 30a upper part, 30b side part, 30c inclined part, 30d notch part, 40a cylindrical insulator, 40b cylindrical insulator 40c cylindrical insulator, 41 circuit board, 50 terminal block, 51 base body, 51b cylindrical recess, 51c through hole, 51d inner surface, 51e inner surface, 51f inner surface, 52 upper surface portion, 53 side wall portion, 53a rectangular protruding portion, 53b engaging groove, 54 downward extending portion, 54 mounting portion, 54a engaging claw, 55 downward extending portion, 55a long groove, 56 cylindrical protrusion, 56a ring-shaped bottom, 100 series unit, 101a first terminal, 101b TV terminal , 101c Second terminal, 110 cover, 111 switch box, 112 mounting frame, 113 coaxial cable, 113a first plug, 114 coaxial cable, 114a second plug, 115 screw, 116a, 116b boss

Claims (3)

A series unit composed of a metal series unit body, a resin terminal block, and a metal case cover fitted on the lower surface of the series unit body,
The series unit body is
At least one input terminal to which a high-frequency signal is input is provided, and a side wall portion that surrounds four sides of a storage space in which the circuit board is stored;
On the upper surface of the side wall portion, there are an output terminal that outputs an input high-frequency signal, a circular disc portion formed on both sides of a circle formed at the base of the output terminal, and a periphery of the output terminal. And an upper surface portion provided with an engagement protrusion formed on the disk portion,
The terminal block is
A terminal block side wall surrounding the four sides;
A top surface of the terminal block side wall, wherein a cylindrical protrusion having a bottom surface of a ring-shaped bottom in which a through-hole through which the output terminal can be inserted is formed;
A downward extending portion that is extended downward from the opposite side of the terminal block side wall portion and is formed with a long groove;
Comprising a base body with
The series unit main body is inserted from the lower surface of the terminal block while being rotated by about 90 ° with respect to the terminal block, and the output terminal is inserted through the through hole and disposed in the cylindrical protrusion. By rotating the series unit main body so that the engagement protrusion exceeds the side wall of the terminal block, the peripheral edge of the disk portion is fitted into the long groove, and the series unit main body comes out of the terminal block. A series unit that can rotate without any trouble.   2. When the series unit is rotated with respect to the terminal block, the end of the engaging protrusion is rotatable until it abuts against the inner surface of the side wall of the terminal block. The series unit described.   A mounting portion is formed to protrude outward from the opposing terminal block side wall portion, and an engaging claw formed at the tip of the mounting portion is engaged and fixed to the mounting frame. The series unit according to claim 1 or 2.

Images