JPS6315507A - Distributor - Google Patents

Abstract

PURPOSE:To facilitate the mount and installation by providing a housing equipped with a mount frame to be mounted to a recessed box of a standardized wiring fixture and forming a terminal part for connecting a signal cable to either of front/rear sides of the housing so as to use a wiring fixture on market and the component in common. CONSTITUTION:A distribution circuit is mounted in the housing 1. That is, the distribution circuit is provided with an antenna side terminal 31 connecting to a signal cable from the antenna side and four device side terminals 32 connecting a signal cable at the receiver side. The mount frame 2 is sized so as to be fitted to the recessed box of the standardized wiring fixture. That is, a long hole 11 through which a box screw to be screwed to the recessed box is penetrated is formed to the mount frame 2 as shown in figure. A distance l1 between centers of a couple of adjacent long holes 11, a distance l2 between a couple of long holes 11 provided while clipping the housing 1 and a distance l3 between a couple of thread holes 12 provided while clipping the housing 11 are matched with mount pitches of the standardized wiring fixture on market.

Description

Detailed Description of the Invention [Technical Field 1] The present invention mainly relates to a distribution device that is inserted on a signal cable between an antenna for receiving television broadcasting and a receiver, and that distributes a signal path on the antenna side into a plurality of signal paths. It is related to vessels.

[Background Art 1] Since the installation dimensions of conventional distributors were not standardized, it was necessary to set the installation dimensions for each distributor, making installation work cumbersome.

[Objective of the Invention 1 The present invention has been made in view of the above points, and its main purpose is to utilize an embedded box used in a standardized commercially available air distribution device. To provide a distributor that can be easily installed and installed.

[Disclosure of the Invention 1 (Example 1) Figures 1 and 2 are a perspective view of the front side and a perspective view of the back side of this embodiment, respectively, showing the periphery of the housing 1 made of synthetic resin or metal. Metal mounting frame 2
are provided integrally. The housing 1 is constructed by combining a body 1a and a cover 1b, and has a mounting frame 2 sandwiched between the body 1a and the cover 1b. The entire back surface of the body 1a is covered with a shield plate 24. Coaxial cable 4 is installed on the back of housing 1.
A terminal portion 3 for connecting is formed. Terminal part 3
is designed to connect five coaxial cables 4, and a first terminal 3a for connecting two coaxial cables 4 at the same time is formed on both the left and right sides, and a first terminal 3a for connecting two coaxial cables 4 at the same time is formed in the center. A second terminal 3b for connection is formed. 1st
The terminal 3a has a pair of terminal blocks 21 integrally protruding from the back surface of the housing 1, and as shown in Figure PJS3, an insertion hole 22 is bored in the front end surface of each terminal block 21. r
A pair of contact spring pieces 23 that make elastic contact with each other are housed in the a-child stand 21, and the center conductor 4a of the coaxial cable 4 inserted through the insertion hole 22 is sandwiched between both contact spring pieces 23 and brought into contact. The center conductor 4a is connected to the spring piece 23. The shield plate 24 is formed with notch holes 25 through which the respective terminal blocks 21 are inserted, and a holding piece 26 formed by cutting and raising is provided upright on the periphery of the notch hole 25. Each holding piece 26 has a holding hole 27.
is drilled. The terminal block 2 faces the shield plate 24.
A presser plate 28 is disposed at a position different from 1, and arms 29 extend from both side edges of the presser plate 28, respectively. Beyond arm 29! The @ portion is bent into an abbreviated shape, and by inserting the bent portion of the arm 29 into the holding hole 27, the pressing plate 28 is held openably and closably with respect to the shield plate 2-i. The holding plate 28 is formed in a size that can hold two coaxial cables 4 at the same time, and a fixing screw 30 is inserted as a fixing device into the center of the holding plate 28 to fix the holding plate 28 to the housing 1. It is now possible to do so. Therefore, as shown in FIG. 3, the tip of the center conductor 4a of the coaxial cable 4 is bent into an abbreviated shape, and the center conductor 4a is inserted into the insertion hole 21 to connect the center conductor 4a to the contact spring piece 23. However, if the fixing screw 30 is tightened with the outer conductor 4b sandwiched between the shield plate 24 and the holding plate 28, the outer conductor 4b can be attached to the shield plate 24.
At the same time, the coaxial cable 4 can be fixed to the housing 1. Regarding the second terminal 3b, one terminal block 21 is provided, and the first terminal except that the holding plate 28 is formed in a size to hold one coaxial cable 4.
It has the same configuration as the terminal 3a.

A distribution circuit as shown in FIG. ttS4 is housed in the housing 1. That is, the distribution circuit includes an antenna side terminal 31 connected to a signal cable from the antenna side, and four device side terminals 32 connected to a signal cable from the receiver side, and includes matching transformers T1 to T1. , capacitors 01 to C1, distribution transformers T4 to T6, and resistors R3 to R1 divide the input into four parts. It goes without saying that the values of each element are set so that the impedances of the antenna side terminal 31 and the device side terminal 32 are matched to the coaxial cable 4. Here, the device side terminal 3
2 is connected to the first terminal 3a, and the antenna side terminal 31 is connected to the second terminal 3b.

The mounting frame 2 has dimensions that allow it to be attached to a standardized embedded box of a wiring device. That is, as shown in FIG. 1, the mounting frame 2 is formed with a long hole 11 through which a box screw screwed into the embedded box is inserted. Two or more elongated holes 11 are formed along one side edge of the housing 1.

The mounting frame 2 is provided with screw holes 12 for attaching a decorative panel (not shown) that covers any side of the mounting frame 2, and the screw holes 12 are formed at positions corresponding to the respective elongated holes 11. has been done. 1 distance II between the centers of a pair of adjacent elongated holes 11, a distance 12 between a pair of elongated holes 11 provided across the housing 1,
The distance 13 between the pair of screw holes 12 provided on both sides of the housing 11 is determined in accordance with the mounting pitch of standardized commercially available wiring devices, for example, 4G, an integral multiple of Sap, 83.5z shoulder, 101 leakage. It is set to be 1.

(Example 2) In Example 1, the terminal portion 3 was formed on the back surface of the housing 1, but in this example, the terminal portion 3 is formed on the surface of the housing 1 as shown in FIG. . The other configurations are the same as in the first embodiment. By forming the terminal portion 3 on the surface of the housing 1 in this way,
When installing a distributor in an existing house, the coaxial cable 4 can be wired without wiring inside the wall.

(Embodiment 3) In the above two embodiments, the housing 1 and the mounting frame 2 were formed integrally, but in this embodiment, the housing 1 and the mounting frame 2 are separate bodies as shown in FIG. .

The housing 1 is formed in a shape in which a protrusion 41 is protruded from a base 40, and a metal assembly frame 42 is provided at a step formed between the base 40 and the protrusion 41. A coupling protrusion 43 is provided protruding from the assembly frame 42 . The mounting frame 2 is used for standardized commercially available wiring devices, and has a total of 1 f.
1. The projecting base 4 of the housing 1 is made of resin.
1 is formed into a window hole 44 into which one can be inserted. A coupling hole 45 is formed on one side of the mounting frame 2, into which a coupling protrusion 43 provided on one side edge of the housing 1 is inserted, and a coupling hole 45 is formed on the other side at a position corresponding to the coupling protrusion PA43. An insertion hole 46 is formed, and a release piece 47 is provided within the insertion hole 46. An operating piece 48 extends from one side edge on the surface side of the mounting frame 2 to the release piece 47, and four shoulders are formed on both sides of the operating piece 48. Therefore, the peripheral edge of the insertion hole 46 and the shoulder portion 4
9, a gap is formed into which each coupling protrusion 43 can be inserted. As described above, the coupling hole 45 and the insertion hole 46 are
By inserting the coupling protrusion 43 provided on the housing 1,
The housing 1 is coupled to the mounting frame 2. As mentioned above, the mounting frame 2 is made of synthetic resin and is flexible, so in order to remove the housing 1 from the mounting frame 2, pry the scraping piece 47 with a tool such as a screwdriver. By expanding the release piece 47 outward, the engagement between the coupling protrusion 43 and the insertion hole 46 can be released. JIli! is installed in the embedded box on each of the remaining sides of mounting frame 2. A pair of elongated holes 50 are formed for attaching the decorative panel, and a screw hole 51 is formed for attaching the decorative panel.

The formation pitch of these long holes 50 and screw holes 51 is as shown in Example 1.
It is similar to the mounting frame 2 of . Since the commercially available mounting frame 2 is used in this way, it is possible to share the parts with commercially available wiring devices as well as the embedded box, which leads to cost reduction.

[Effects of the Invention] As described above, the present invention is provided with a mounting frame that can be attached to an embedded box of a standardized wiring device, and a signal cable can be connected to either the front or back of the housing. A decorative cover is attached to the top surface of the housing to cover the housing, and it can be installed using an embedded box used in standardized commercially available wiring devices. Therefore, it has the advantage that parts can be shared with commercially available wiring devices, and costs required for new equipment investment can be reduced. In addition, since it only needs to be attached to a standardized embedded box, the mounting dimensions are predetermined, which has the advantage of facilitating stratification construction.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the front side showing Embodiment 1 of the present invention, and FIG.
The figure is a perspective view of the back side of the same as above, Figure 3 is a cross-sectional view of the terminal part of the same as above, Figure 4 is a circuit diagram of the same as above, and Figure 5 is a perspective view of the front side showing Embodiment 2 of the present invention. , No. 6 is an exploded perspective view showing a third embodiment of the present invention. 1 is a housing, 2 is a mounting frame, 3 is a terminal portion, 23 is a contact spring piece, 24 is a shield plate, 28 is a holding plate, and 30 is a fixing screw. 1M1 Figure 3 'P4's

Claims (4)

[Claims] (1) It has a housing equipped with a mounting frame that can be attached to the embedded box of a standardized wiring device, and a terminal part for connecting a signal cable is formed on either the front or back side of the housing, and the front side is A distributor with a decorative cover attached to cover the housing. (2) The distributor according to claim 1, wherein the terminal portion is formed on the back side of the housing. (3) The distributor according to claim 1, wherein the terminal portion is formed on the back side of the housing. (4) The signal cable is a coaxial cable, and the terminal part includes a pair of contact spring pieces that come into elastic contact with each other and sandwich the center conductor of the coaxial cable, and a terminal part that is attached to the front and back surfaces of the housing so that it can be opened and closed, and when the terminal is in the closed state, the coaxial It is equipped with a holding plate that holds the outer conductor of the cable between the housing and a fixture that holds the holding plate in a closed state, and a spring piece that contacts the center conductor of the coaxial cable on one side of the housing where the holding plate is provided. 2. The distributor according to claim 1, further comprising an insertion hole inserted between the distributors.