JP3218457B2 - Structure of messenger wire attachment part of electronic equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a messenger wire mounting portion of an electronic device, such as a CATV transmission device including a telephone line, used by suspending the messenger wire stretched outdoors.

[0002]

2. Description of the Related Art A messenger wire mounting portion of this kind, for example, shown in FIG. 17 (Japanese Utility Model Publication No. 4-45398).
A mounting portion 53 projecting from the upper surface of a housing 51 of the electronic device to form one wire receiving groove 52, a bolt 54 implanted in the mounting portion 53, A holding member 56 having a holding groove 55 facing the groove 52 and a nut 57 screwed to a bolt 54 are attached to the messenger wire 58 of the housing 51.
The nut 57 is fastened to the messenger wire 58 after being held by the holding groove 55.

[0003]

However, depending on the position of the center of gravity of the electronic device suspended on the messenger wire, the number and position of the cables to be mounted on the electronic device, the wiring direction, the cable pulling force, etc. If the tilting becomes unstable, installation and removal of cables and covers, maintenance and other operations could not be performed efficiently, and the appearance was unfavorable. In particular, in a configuration in which another electronic device is detachably attached to an electronic device having a messenger wire attachment portion, the position of the center of gravity may greatly change depending on the added electronic device. obtain.

An object of the present invention is to provide a structure of a messenger wire mounting portion of an electronic device which can solve the above-mentioned problems.

[0005]

The invention according to claim 1 is
A messenger wire guide groove is formed in a protrusion on the upper surface of the housing of the electronic device, and a holding tool attached to the protrusion with a bolt is used to hold the messenger wire with the messenger wire guide groove. Wherein a plurality of substantially parallel messenger wire guide grooves are formed on the protruding portion so that the messenger wire guide grooves can be selected. In
A plurality of messenger wire holding grooves facing the plurality of messenger wire guide grooves are formed.

According to this means, the messenger wire is held between the messenger wire guide groove selected from the plurality of messenger wire guide grooves and the messenger wire holding groove facing the guide groove. Accordingly, it is possible to prevent a problem due to the inclination of the electronic device.

According to a second aspect of the present invention, in the structure of the messenger wire mounting portion of the electronic device according to the first aspect, the plurality of messenger wire guide grooves of the projection are formed with the screw hole axis for the bolt of the projection. Symmetrically with respect to an axis perpendicular to the wire, a bolt hole is formed at one end of the presser, and a messenger wire press groove facing the messenger wire guide groove is formed at the other end. It is.

According to this means, the number of the messenger wire holding grooves is half the number of the messenger wire guide grooves.
By rotating the presser half a turn, the number of the messenger wire guide grooves can be selected by the number of the messenger wire guide grooves. For this reason, the same function as the invention according to claim 1 can be obtained, and the cost of the presser can be reduced.

According to a third aspect of the present invention, in the structure of the messenger wire mounting portion of the electronic device according to the first aspect, the plurality of messenger wire guide grooves of the projection are formed by bolts formed at the center of the projection. The screw holes are formed on the left and right sides and the front and rear sides of the screw holes in parallel to form a girder-shaped messenger wire guide groove. A wire holding groove is formed.

According to this means, not only the same function as the invention according to claim 1 can be obtained, but also the electronic device can be suspended by changing the direction of the electronic device by 90 ° with respect to the stretched messenger wire. it can.

According to a fourth aspect of the present invention, in the structure of the messenger wire mounting portion of the electronic device according to the third aspect, the four messenger wire guide grooves formed in the shape of a cross are provided for the bolts of the protrusion. At a distance from the center of the screw hole, the retainer is formed with a messenger wire holding groove facing the messenger wire guide groove on both the left and right sides or the front and rear sides of the bolt screw hole.

According to this means, the same function as the invention according to claim 3 can be obtained by rotating the presser by half a turn.
Since the number of the messenger wire holding grooves may be half the number of the messenger wire guiding grooves, the cost of the holding tool can be reduced.

According to a fifth aspect of the present invention, in the structure of the messenger wire mounting portion of the electronic device according to the first, second, third, or fourth aspect, the messenger wire guide is provided on the projection. Steps are recessed at the inside of both ends of the groove, and the holding member is formed with a bent portion for preventing rotation of the holding member when the bolt is tightened by engaging with the step. It is.

According to this means, when the messenger wire sandwiched between the messenger wire guide groove and the messenger wire holding groove is bolted, the presser which is to be rotated is turned into the stepped portion and the bent portion. Therefore, the messenger wire can be grasped accurately.

According to a sixth aspect of the present invention, a messenger wire guide groove is formed on a protrusion on the upper surface of the housing of the electronic device, and the messenger wire guide is provided on a holding member attached to the protrusion with a bolt. A groove for holding a messenger wire for holding the messenger wire between the groove and the groove, wherein the protrusion has a screw hole for mounting a bolt inserted in the middle of the pressing tool; A plurality of substantially parallel messenger wire guide grooves are formed on one side of the diaper so that the messenger wire guide grooves can be selected, and one messenger wire press groove is formed on one end of the presser. The intermediate bolt insertion hole is formed as an elongated hole so that the one messenger wire holding groove can face the plurality of messenger wire guiding grooves, and the protrusion has a holding member. Protrude at the other end A guide groove for guiding the formed projection in a direction orthogonal to the messenger wire guide groove, and a retainer for engaging the protrusion at a position where the messenger wire holding groove faces the messenger wire guide groove. The portion is formed at the bottom of the guide groove.

According to this means, a desired messenger wire guide groove is formed from a plurality of messenger wire guide grooves by moving the holding tool having the one messenger wire holding groove formed therein. You can choose. In addition, the cost of the presser can be reduced because of a simple configuration that requires only one messenger wire press groove of the presser.

[0017]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 to FIG. 3 show a television signal splitter 1 used in a CATV system. The television signal splitter 1 has input / output terminal portions 5, 5, and 6 on both sides of the front side wall 3 of the rectangular casing 2 and on the side of the front side wall 3 of the side walls 4, 4 adjacent to the front side wall 3. , 6 are provided,
The input / output terminals 5, 5 are provided with blind plugs 7, 7 because they are not used in this case. A step (not shown) is formed on the inner wall of the lower opening edge 8 of the housing 2, and a cover 9 is attached to the step with a bolt 10 via packing. The cover 9 is provided with two branch terminals 11,11.

The upper surface 12 of the housing 2 is provided with a long rectangular projection 14 protruding from the center thereof toward the front side wall 3 in a direction perpendicular to the front side wall 3. As shown in FIG. 7, messenger wire guide grooves 16, 16 parallel to the axes of the input / output terminal portions 6, 6, and square step portions 17, 1 at four inner corners of both ends of the guide grooves 16, 16 are provided.
7, 17, 17 are recessed, and a bolt screw hole 18 is formed in the center of the axis of symmetry of the guide grooves 16, 16.

FIG. 9 shows a plate-shaped holding member 20 formed by press molding. The messenger wire holding grooves 22 opposed to the messenger wire guiding grooves 16 of the housing 2 are provided at both ends of a plate portion 21. , 22 are formed, and holding portions 23, 23 whose outer end sides are obliquely upward are provided.
The edge portions 26, 26 formed with the bent portions 25, 25 engaged with the step portions 17, 17 of the fourth member 4, are integrally connected, and a bolt hole 28 is formed in the center of the plate portion 21; Is slightly higher than the edge 26. The messenger wire attachment portion 19 is provided with messenger wire guide grooves 16, 16 provided on the holding member 20 and the projection 14 of the housing 2.
And so on.

In order to suspend the TV signal splitter 1 on the stretched messenger wire 33, the center of gravity of the TV signal splitter 1 must be
Considering the number of coaxial cables, the mounting position, the mounting direction, the cable pulling force, etc., a plurality of mesh wire guide grooves 16 are provided.
A predetermined position of the messenger wire 33 is sandwiched between the messenger wire guide groove 16 and the messenger wire holding groove 22 facing the messenger wire guide groove 16 and fastened with bolts 27. At that time, the presser 20 is bent at its bent portions 25, 25, 25, 2
5 is correctly positioned by engaging with the steps 17, 17, 17, 17 of the projection 14, so that the messenger wire 33
Can be grasped accurately.

The plurality of messenger wire guide grooves 16 formed in the projections 14 of the housing 2 are two parallel in FIG. 7, but those shown in FIG. 8 are equidistant from the center of the screw hole 18 for bolts. Messenger wire guide grooves 16,1
6, 16, and 16 are formed in a cross-girder shape. FIG. 9 shows a holding member 20 used for the mesh-shaped messenger wire guide groove.
The pitch of the messenger wire holding grooves 22, 22 equidistant from the bolt hole 28,
Since the pitch of the messenger wire guide grooves 16 is equal to the pitch of the messenger wire, when the electronic device is turned 90 degrees and attached to the messenger wire 33, the holding member 20 is also turned 90 degrees. . Further, the four mesh wire holding grooves 22, 22, 22, 22, 22 opposed to the four mesh wire guiding grooves 16, 16, 16, 16 formed in a girder shape.
Even with the holding tool 31 (FIG. 10) formed with 22, the direction of the electronic device can be changed by 90 °.

FIGS. 4 to 6 and FIGS. 11 to 15 show a television signal splitter 1 used in a CATV system.
The cover 9 at the lower end of the telephone line is removed, and the upper end edge of the telephone line branching device 32 opening upward is detachably attached to the open end edge of the lower end. In the figure, reference numeral 40 denotes a cap that covers the branch terminal of the television signal branch unit 1. As described above, an electronic device having the messenger wire attaching portion 19, for example, a television signal splitter 1 and an electronic device having a different application, such as a telephone line splitter 32, are added to the messenger wire 33 to be suspended. In some cases, the center of gravity of the electronic device may change significantly before and after the addition of the electronic device.
Is preferably not more than two but three or more.

Messenger wire holding groove 2 of holding member 20
The number 2 is equal to the number of the messenger wire guide grooves 16 of the projection 14 (FIGS. 3, 12, 13, and 14) or a half thereof (FIGS. 11 and 15). When the number of the holding grooves 22 is half, the holding tools 36 and 37 are used by rotating them half a turn.

FIG. 16 shows a plurality of messenger wire guide grooves of equal pitch on one side of a bolt screw hole formed in the middle on the upper surface of the projecting portion 14, in the embodiment, three messenger wire guides. The grooves 16, 16, 16 are formed in parallel. The retainer 35 attached to the protrusion 14 with a bolt 36 screwed into the bolt screw hole forms a single messenger wire retaining groove 22 at the tip, and an intermediate bolt 36
The insertion hole is formed as an elongated hole 37 so that the messenger wire holding groove 22 can sequentially face the three messenger wire guide grooves 16, 16, and 16, and a downward projection 38 is formed at the base. A guide groove 39 for guiding the protrusion 38 in a direction perpendicular to the messenger wire guide groove 16 is formed in the upper surface of the protrusion 14, and the messenger wire guide groove 16 and the messenger wire are formed at the bottom of the guide groove 39. Locking portions 41, 41, 41 for the presser are provided so as to be easily aligned with the sender wire pressing groove 22. When the number of the messenger wire guide grooves 16 having a small pitch is about two to three, the same number of the ridges 22 as the messenger wire guide grooves 16 are provided on the tip side of the holding member 20 as shown in FIG. You may.

[0025]

As described above, according to the present invention, a plurality of almost parallel messenger wire guide grooves are formed on the projection on the upper surface of the housing of the electronic device so that the messenger wire guide grooves can be selected. So, of course, this electronic equipment,
Even when another electronic device is attached to this electronic device, the electronic device is held by clamping the messenger wire between the selected messenger wire guide groove and the messenger wire holding groove of the holding member. It is possible to avoid an unstable state in which the electronic device is tilted, and it is possible to prevent a trouble due to a tilt of the electronic device.

In the case where the plurality of messenger wire guide grooves and the plurality of messenger wire holding grooves opposed thereto are formed in a cross-girder shape, it is possible to prevent the trouble due to the inclination of the electronic device and to adjust the direction of the electronic device. It can be suspended by 90 degrees with a messenger wire.

[0027] In the configuration in which the messenger wire guide groove is selected by moving the holding tool having the one messenger wire pressing groove forward and backward with respect to the plurality of messenger wire guide grooves. In addition, it is possible to prevent problems due to the inclination of the electronic device, and to reduce the cost of the presser.

[Brief description of the drawings]

FIG. 1 is a front view of a television signal splitter suspended on a messenger wire.

FIG. 2 is a plan view of the television signal splitter shown in FIG.

FIG. 3 is a side view of the television signal splitter shown in FIG. 1;

FIG. 4 is a side view of a television signal branch provided with a telephone line branch;

FIG. 5 is a plan view of a television signal branch provided with the telephone line branch shown in FIG. 4;

FIG. 6 is a front view of a television signal branch provided with the telephone line branch shown in FIG. 4;

FIG. 7 is a perspective view of a messenger wire guide groove formed in a housing.

FIG. 8 is a perspective view of a girder-shaped messenger wire guide groove formed in a housing.

FIG. 9 is a perspective view of a presser used in the messenger wire guide groove shown in FIG. 7;

FIG. 10 is a perspective view of a presser used in the messenger wire guide groove shown in FIG. 8;

FIG. 11 is a side view of a television signal branching device provided with the telephone line branching device shown in FIG. 4 except that the structure of a holding member is different.

FIG. 12 is a side view of a television signal branching device provided with the telephone line branching device shown in FIG. 11 in which the arrangement of the messenger wire guide groove and the structure of the holding member are different.

FIG. 13 is a side view of a television signal branch provided with the telephone line branch shown in FIG. 4 in which a single messenger wire guide groove and a single holding groove are added.

FIG. 14 is a side view of a television signal branch provided with the telephone line branch shown in FIG. 4, in which two messenger wire guide grooves and two holding grooves are added.

15 is a side view of a television signal splitter provided with the telephone line splitter shown in FIG. 14, in which the holding groove of the holding tool is reduced by half.

FIG. 16 is a structural explanatory view for making one pressing groove provided on the pressing tool successively face three adjacent messenger wire guide grooves provided on the housing.

FIG. 17 is a perspective view of a conventional product.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Divider for television signals 2 Case 14 Projection part 16 Messenger wire guide groove 17 Step part 18 Screw hole for bolt 19 Messenger wire mounting part 20 Pressing tool 22 Messenger wire pressing groove 23 Pressing part 25 Bend Part 28 Bolt hole 31 Holder 32 Telephone line splitter 33 Messenger wire 35 Holder 37 Long hole 38 Projection 39 Guide groove 41 Locking part for holder

Claims (6)

(57) [Claims] 1. A projection on the top surface of a housing of an electronic device.
Form a wire guide groove and attach it to the protrusion with bolts
The retainer that has been set is fitted with the messenger wire guide groove.
Messenger wire for holding messenger wire
Wherein the protrusion is formed by
In the section, select the messenger wire guide groove so that it can be selected.
A plurality of parallel messenger wire guide grooves are formed and
A structure of a messenger wire mounting portion of an electronic device , wherein the holding member is formed with a plurality of messenger wire holding grooves facing the plurality of messenger wire guide grooves. . 2. The electronic device according to claim 1, wherein
In the structure of the wire attachment part, the
The wire guide groove is directly aligned with the bolt screw hole axis of the protrusion.
Provide symmetrically with respect to the intersecting axis, and
A hole is formed, and the other end side is
Features a messenger wire holding groove that faces
The structure of the messenger wire mounting part of the electronic device. 3. The electronic device according to claim 1, wherein:
In the structure of the wire attachment part, the
The wire guide groove is for the bolt formed in the center of the protrusion
Form parallel to the left and right sides and the front and rear sides of the screw hole
With a girder-shaped messenger wire guide groove
A crossbeam facing the crossbeam-shaped messenger wire guide groove
Characterized by forming a messenger wire holding groove
Of the messenger wire mounting part of the electronic equipment to be used. 4. The electronic device according to claim 3, wherein
In the structure of the wire attachment part, the four
The Messenger wire guide groove is the screw hole for the bolt on the protrusion
At the same distance from the center, the retainer is to the left of the screw hole for the bolt.
Met with the messenger wire guide groove on the right side or the front and rear sides
Features a messenger wire holding groove that faces
The structure of the messenger wire mounting part of the electronic device. 5. The method according to claim 1, wherein
The structure of a messenger wire mounting portion of the electronic device according to claim 4.
In the fabrication, the projections have both messenger wire guide grooves.
Steps are recessed on the inner side of the end side.
Bent portion for preventing rotation of the holding member by engagement with the step portion
A structure of a messenger wire mounting portion of an electronic device, characterized by forming: 6. A projection on an upper surface of a housing of an electronic device.
Form a wire guide groove and attach it to the protrusion with bolts
The retainer that has been set is fitted with the messenger wire guide groove.
Messenger wire for holding messenger wire
Wherein the protrusion is formed by
Screw to attach a bolt to be inserted in the middle of the holder
Hole and a messenger wire guide groove on one side of this screw hole.
Multiple almost parallel messenger wires for selection
A guide groove is formed, and the holding member has one end on one end side.
Form a Sendia wire holding groove, and insert an intermediate bolt
The said one messenger wire holding groove is said plurality of
Elongate the hole so that it can face the messenger wire guide groove.
Further, the protrusion is provided on the other end side of the holding member.
Direction perpendicular to the messenger wire guide groove
The guide groove for guiding the wire and the messenger wire holding groove
The projection is engaged with the projection at a position facing the guide wire groove.
Forming locking part for presser fitting to be formed at the bottom of guide groove
A structure of a messenger wire mounting portion of an electronic device , characterized by: