JP2534677Y2 - Cassette type splitter - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a branching / distributing device used for a television joint listening device or a communication network in a building, and has a structure which is easy to handle particularly in installation and inspection work. Regarding what was done.

[Problems to be Solved by Conventional Techniques and Inventions] First, this type of branch distributor is required to be installed in a signal transmission path and to transmit a signal without mixing external noise.

The branch distributor with the conventional structure is mounted with screws, but the branch distributor may not be well insulated because the tip of the mounting screw contacts the steel frame of the building, etc. Noise may be mixed.

Second, since a large number of branch distributors are installed along the transmission line, they must be easily attachable from the viewpoint of simplicity of installation work.

In the case of the conventional one, the installation work is considerably complicated because the mounting base is screwed in one step and the main body is screwed to the mounting base.

Third, the branch distributor may be removed when performing a work for checking the signal level of the signal transmission line after the installation.
It is desirable to be able to do this easily.

In the conventional one, the screw must be removed in order to remove the main body from the mounting table, which is also complicated.

The present invention has been made in consideration of the above points, and has as its object to provide a branch distributor which is free from external noise and which is easy to handle.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a unit main body having a circuit element for branching and distributing a transmission signal therein and a coaxial connector on an outer wall for connecting the circuit element to another device via a transmission line. A cassette type branch distributor comprising: a unit mounting base made of an insulating resin fixed to a surface on which the main body is to be installed to detachably support the main body. The unit mounting base has, on its side, an engaging plate with a projection that engages with the locking part of the unit main body, and the unit main body and the unit mounting base Has a screw insertion hole and a fastening hole for fixing the unit main body to the unit mounting base, and the unit mounting base is for fixing the unit main body to a surface on which the unit main body is to be installed. The unit mounting base has a shape that matches the bottom shape of the unit main body, and the unit mounting base has a bottom portion and a surface on which the unit main body is to be installed. And a cassette-type branch distributor, which is configured to form a gap for a cable clamp between the cassette-type branch distributor and the cassette-type branch distributor.

[Action]

The unit main body has a cassette type configuration that can be attached to and detached from the unit mounting base. The unit mounting base is fixed to a target surface, for example, a wall surface of a building or the like by using the screw holes. At the time of this fixing, a cable is clamped in a gap between the bottom surface of the unit mounting base and the wall surface of the building as necessary. The unit main body is locked to the fixed unit mounting base by using the engaging plate with the projection of the unit mounting base and the locking portion of the unit main body. Further, if necessary, the unit main body may be fixed to the unit mounting base with screws using the screw holes of the unit main body and the unit mounting base.

In this way, the unit body is installed on the building wall. In order to inspect the transmission line or the unit main body after installation, the unit main body is removed from the unit mounting base, and is returned to the unit mounting base after the inspection is completed. At this time, even if the screw is loosened, the unit main body is locked to the unit mounting base and does not drop naturally during the operation, so that the workability is good.

[Effect of the invention]

According to the present invention, since the unit main body is mounted on the unit mounting base, the unit mounting base is interposed between the building and the unit main body, so that the unit main body does not come into contact with the steel frame of the building. Insulation is performed.

In addition, since the contour of the unit mount matches the bottom shape of the unit main body and is detachably attached to the unit main body, it is necessary to attach the unit mount to the target surface using screw holes during installation work. After that, after the engagement plate of the unit mounting base is locked to the locking portion of the unit main body, the work can be completed simply by fixing the unit main body to the unit mounting base with screws, and the workability is good and Easy. As a result, the workability is greatly improved by the cassette structure.

Further, at the time of inspection work, the unit main body can be easily removed from the unit mounting base and can be temporarily attached and detached, so that the workability is excellent.

In addition, the cable can be clamped in a gap formed according to the cable size below the bottom surface of the unit mounting base.

〔Example〕

FIG. 1 is a plan view of an embodiment of the present invention, showing a state in which a unit main body 20 is mounted on a unit mounting base 10 made of insulating resin. These both constitute a branching device or a distributor and are connected to a transmission line.

FIG. 2 is a perspective view showing a state where the unit main body 20 is removed from the combined state shown in FIG. The unit mounting base 10 has a rectangular planar shape, and is provided with a cable clamp portion 11 which is recessed upward and penetrates in the width direction at the center thereof, and is engaged with and held by the unit main body 20 at both ends in the longitudinal direction. Engagement plate 12
a is provided, and a projection 12b that engages with the locking portion of the unit body 20 is provided inside the engagement plate 12a.
A screw hole 13 for fixing the unit mounting base 10 and a screw hole 14 for fixing the unit body 20 are provided in a portion of the unit mounting base 10 between the cable clamp portion 11 and the engagement plate 12a.

FIG. 3 is an enlarged view showing a state where the unit main body 20 is mounted on the unit mounting base 10.
Is fixed to a mounting object, for example, a wall surface of a building by screwing a screw 30 into the screw hole 13. Unit mounting base
A coaxial cable 50 is inserted into and fixed to the cable clamp portion 11 at the center of the cable. The step of the unit main body 20 is locked by projections 12b provided inside the engagement plates 12a at both ends of the unit mounting base 10. This allows the unit body
20 is firmly fixed to the unit mounting base 10,
A screw 40 may be used if further assurance is required.

FIG. 4 shows a state similar to that shown in FIG. 3 as a whole perspective view. That is, while the unit mounting base 10 is fixed to the unit main body 20, the cable 50 is cranked by the cable clamp unit 11. And
Since the outline shape of the unit mounting base 10 matches the bottom shape of the unit main body 20, when the unit main body 20 is mounted on the unit mounting base 10, both have an integrated appearance.

FIG. 5 shows the unit body 20 with respect to the unit mounting base 10.
1 shows a state in which the user intends to mount the camera. In this figure, the unit mount 10 is the same as in FIG. 2, but the unit body 20 is shown in more detail.

The unit body 20 has a total of three input-side and output-side coaxial connectors on the wall surface in the width direction. A concave portion 21a and a step portion 21b are provided on the end wall surface in the longitudinal direction for engaging with a projection 12b provided inside the engaging plate 12a of the unit mounting base 10.

Further, a screw 24a for screwing in the ground wire is provided on the upper wall surface, and a hole 24b for ground wire insertion is provided on the wall surface provided with the coaxial connector 22, and a ground wire is inserted into the hole 24b for ground wire insertion. Screw the screw 24a.

Then, in order to mount the unit main body 20 on the unit mounting base 10, the concave portion 21a of the unit main body 20 is aligned with the engaging plate 12a of the unit mounting base 10, and the unit main body 20 is lowered downward in the drawing. Step 21 when it reaches the bottom end
The unit mounting base 10 and the unit main body 20 are fixed by the engagement of the projection b with the projection 12b.

In order to separate the unit mounting base 10 from the unit main body 20, the engagement plate 12a may be pushed outward and the unit main body 20 may be picked up.

FIGS. 6 (a) and 6 (b) show a state in which the unit main body 20 is fixed to the unit mounting base 10 as a partially sectioned plan sectional view and a side sectional view. As shown in FIG. 2A, a space for the screw 30 is provided at a corner of the unit main body 20 where the screw 24a for screwing the ground wire is not provided. Also, as shown in FIG. 2B, a step 21b is provided in the recess 21a of the unit body 20. In this step 21b,
An end portion of the engagement plate 12a that engages with the projection 12b and a hole for the screw 40 are provided. As shown in FIGS. 3A and 3B, the upper wall surface of the unit body 20 is shielded by double lids 25 and 26.

FIG. 7 shows a screw 30 for fixing the unit mounting base 10.
3 shows an enlarged view of the structure of the hole 13. In this hole, there is provided a projection for temporarily fixing the screw, which is broken when the screw is strongly screwed, so that the screw is screwed deeply and the unit mounting base 10 can be firmly fixed.

FIG. 8 is an enlarged view showing a structure of a hole for a screw 40 for fixing the unit main body 20 to the unit mounting base 10, and a projection having a cross section at every 90 degrees is provided. The shavings of the tapping screw penetrate into the cuts so that tapping is performed well and the screw is screwed firmly.

[Brief description of the drawings]

FIG. 1 is a plan view of one embodiment of the present invention, FIG. 2 is a perspective view of a state in which the unit main body 20 is removed from the combined state shown in FIG. 1 and only the unit mounting base 10 is provided, and FIG. FIG. 4 is an enlarged side sectional view showing a state where the unit main body 20 is mounted on the mounting base 10, FIG. 4 is a perspective view generally showing the same state as shown in FIG. 3, and FIG.
FIGS. 6 (a) and 6 (b) are explanatory views showing a state in which the unit main body 20 is to be mounted on the
FIG. 7 is an enlarged sectional view showing a state in which the unit main body 20 is fixed, and FIG. FIG. 8 is an explanatory view showing an enlarged structure of a hole for a screw 40 for fixing the unit main body 20 to the unit mounting base 10. As shown in FIG. 10 …… Unit mounting base, 11 …… Cable clamp part,
12a ... engagement plate, 12b ... projection, 13, 14 ... screw hole, 20 ...
... Unit body, 21a ... Recess, 21b ... Step, 22 ... Coaxial connector, 23 ... Screw hole, 24a ... Ground hole, 25,26
…… Shield, 30,40 …… Screw, 50 …… Cable.

Continuation of the front page (56) References JP-A-61-32970 (JP, A) JP-A-61-149422 (JP, U) JP-A-55-65781 (JP, U) JP-A-57-198886 (JP) , U) Japanese Utility Model Showa 56-24052 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A unit body having a circuit element for branching and distributing a transmission signal therein and a coaxial connector on an outer wall for connecting the circuit element to another device via a transmission line, and the unit body A cassette-type branch distributor having an insulating resin unit mounting base for detachably supporting the unit main body by being fixed to a surface on which the unit main body is to be installed, wherein the unit main body locks the unit mounting base The unit mounting base has a projection engaging plate on its side to engage with the locking part of the unit main body. The unit main body and the unit mounting base are It has a screw insertion hole and a screw tightening hole for fixing the unit main body to the unit mounting base, and the unit mounting base is fixed to a surface on which the unit main body is to be installed. The unit mounting base has a shape that matches the bottom surface shape of the unit main body, and the unit mounting base should have its bottom and the unit main body installed. A cassette-type branch distributor configured to form a gap for a cable clamp between the surface and a surface.