JP2507762Y2 - Messenger wire attachment mechanism for co-listening device - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] The present invention relates to a messenger wire mounting mechanism in a co-listening device, which does not allow the main body or parts to drop during high-altitude work, making it easy to insert and remove the messenger wire. The present invention is intended to provide a mechanism that can perform various attachments and can form a stable messenger wire with respect to a device body.

(Industrial application) Messenger wire mounting mechanism for CATV co-listening equipment.

(Prior Art) There have been some proposals for attaching a television co-listening device to a messenger wire.

That is, this television common listening equipment usually weighs 5 to 10 kg or more, and it is not easy to attach this equipment to the messenger wire at a high place. A mounting part is provided so that the base end side is inserted and fixed by a bolt screwed into the mounting part. The mounting part is provided with an inclined surface for guiding a messenger wire and the mounting part. The projection seat surface is formed so as to fit with the planar portion in the intermediate portion of the above, and there is a problem on the side of the mounting bracket.

That is, in the case of the actual open sho 63-83927, a guide for facilitating the insertion of the messenger wire is formed on the fixing metal fitting, but the tightening bolt of this fixing metal is loosened to utilize the guiding function of the messenger wire guide. Then, it is opened, and a messenger wire is hung on the fixing metal fitting.

On the other hand, the one in Japanese Utility Model Laid-Open No. 63-194525 is for jacking up the pressing metal fittings with the bolts screwed into the pressing metal fittings. Then, a hooking piece is provided at the front end of the mounting seat located above these mounting bases, a downward locking projection is provided at the rear end, and a cylindrical portion with a curved front-back direction is provided in the middle of the mounting seat. , A rear end that forms a press piece for gripping a messenger wire by a hooking tool having a hollow hole formed in the cylindrical portion and a hooking piece that is inserted between the mounting base and the hooking piece at the front end. The section discloses a messenger wire fixing tool including a holding metal fitting that comes into contact with the locking projection when the messenger wire is clamped, and a bolt that is inserted into the stupid hole and screwed into the holding metal fitting.

(Problems to be Solved by the Invention) Even if the conventional ones as described above have some advantages, they still have various problems.

That is, in the case of the actual open sho 63-83927, the insertion opening is not opened even if the tightening bolt of the fixing metal fitting is loosened, and it is necessary to guide the metal fitting with the slanted edge and push up the metal fitting during the wire insertion operation. There is a tendency that it is difficult to insert the wire smoothly, and the wire insertion port is not formed large. Further, since the wire is hung on the movable mounting metal as described above, it is difficult to mount and fix the mounting bracket by the mounting member, and the effective length of the thread engagement of the mounting member in the main body case is limited by the thickness of the main body case. If the attachment is loosened too much, the main body case may fall off.

On the other hand, in the case of Shokai 63-194525, the jack-up system is used in which the pressing piece is engaged with the screw thread of the bolt and it is pulled up by its rotation, so the wire must be loosened to insert the wire. I can't open my mouth. Moreover, the screwing length of the bolt with respect to the pressing piece cannot be sufficiently taken.

Furthermore, in this device, the handling and operation surface of the co-listening device is substantially covered with the hooking piece and the fixed seat portion of the mounting base, and the tail end of the presser bracket hardly moves during tightening. Is difficult to confirm. Further, since the bolt is simply screwed into the pressing metal fitting which is movable when the pressing metal fitting is opened or tightened, the bolt and the pressing metal fitting are not easily shaken back and forth and left and right. That is, as described above, the tightening by the holding metal fitting is not visible, and the bolt is rotated by the tightening operation tool under the condition that the bolt head is oscillated and displaced. There are some drawbacks such as being extremely difficult.

In this case, since the fixing point of the wire mounting mechanism to the main body case is only one wire hooking side and the other wire holding metal fitting side by the bolt is mere pressure without fixing to the main body case, it has a considerable weight. The mounting condition of the body case is not always stable.

"Structure of Device" (Means for Solving the Problem) The present invention was devised by studying to solve the problems of the conventional devices as described above, and is as follows.

A concave receiving surface for receiving the base end side of the wire fixing metal fitting is formed in the middle part of the receiving seat formed in the device, and an engaging portion for the wire fixing metal fitting is formed in the vicinity of the receiving surface and fixed to the outer surface side. Forming a metal fitting escape surface, forming a wire receiving surface at the tip of the wire fixing metal fitting, and forming a notch in the wire receiving metal fitting attached to the receiving seat from the upper surface to the wire receiving surface, A fastener inserted at the proximal end side of the wire fixture is screwed into the receiving surface, and a fulcrum for the fixture is formed between the fastener and the escape face of the fixture. Messenger wire attachment mechanism for co-listening equipment.

A concave receiving surface for receiving the base end side of the wire fixing metal fitting is formed in the middle part of the seat formed on the equipment, and an engaging portion for the wire fixing metal fitting is formed in the vicinity of the receiving surface and at the outer surface side. By forming the fixing metal flank, the base end of the wire fixing metal set by the clamp on the concave receiving surface is held at a predetermined position, and the tip of the wire fixing metal is tightened on the wire receiving surface side. When the attachment is loosened, it is automatically tilted down and opened.

By forming the wire receiving surface at the tip of the wire fixing member, the messenger wire can be smoothly received on the wire receiving surface of the wire fixing member which is automatically inclined and lowered as described above. Further, by forming a notch in the wire receiving metal fitting on such a wire receiving surface, the wire receiving surface portion is received during the cutting by tightening the above-mentioned fastener, and an effective wire holding relationship is formed.

By screwing the fastener inserted into the proximal end side of the wire fixing member to the receiving surface, the fastener is erected in the device body and is not displaced. Further, since a fulcrum for the above-mentioned wire fixing metal fitting is formed between the above-mentioned clamp and the above-mentioned fixing metal fitting flank, the tilting action of the wire fixing metal fitting can be clearly obtained when tightening and loosening by the above-mentioned fastener, Further, the operation on the base end side of the wire fixing metal fitting is accurately observed to facilitate the above-mentioned tightening and loosening operation of the messenger wire easily and accurately.

(Embodiment) A concrete embodiment of the present invention as described above will be described with reference to the accompanying drawings. In the co-listening device 10 in which the lid 12 is attached to the body case 11 as shown in FIG. The wire fixing metal fitting 1 and the wire receiving metal fitting 2 are attached, and the messenger wire 5 is provided between the metal fittings 1 and 2.
Or is adapted to accept 5a. The fitting parts 1 and 2 of the main body case 11 are as shown in FIG. 2 with one of them being assembled and the other being disassembled. The main case 11 is integrally formed with a receiving seat 3. A receiving surface 30 for receiving the proximal end side of the wire fixing member 1 is formed in a recessed portion in the middle of the seat 3, and side surface portions 31 are provided on opposite sides of the receiving surface 30. In this embodiment, the wire fixing member 1 is shown by disassembling one side as described above in FIG. 2 and has a constricted portion 14 in the middle as shown in FIG. And the insertion hole 16 of the fastener 6 is formed in the middle of the engaging portion 15, and the tip end side of the constricted portion 14 is a curved wire receiving surface 17. With respect to the construction of the wire fixing metal fitting 1, the receiving surface 30 is provided with the screw-in hole 32 of the fastener 6, and the recessed portion of the receiving surface 30 receives and locks the locking portion 15. 33 is formed, and on the front side of the receiving surface 30, engaging portions 37 that engage with the constricted portion 14 are provided oppositely on both sides, and an inclined fixing metal fitting escape surface 34 is formed.

That is, in this embodiment, both the groove portion 33 and the engaging portion 37 are adopted as the engaging portions for the wire fixing member 1,
Since such an engagement relationship is to prevent the wire fixing metal fitting 1 from coming out, one of them may be used, for example, the locking portion 15 and the groove portion 33 may be omitted, as shown in FIG. Conversely, the constricted portion 14 and the engaging portion 37 may be omitted and only the groove portion 33 and the locking portion 15 may be provided. The engaging portion 37 may be made to project from the wire receiving metal fitting 2 at a mounting surface portion of the stator 7 which will be described later so as to partially close both front surfaces of the receiving surface 30.

Also, in this embodiment, the side surface portion of the seat 3 as described above
Different screwing holes 35 are formed on the front surface of the wire 31, and the wire receiving metal fittings 2 are fixed to the screwing holes 35 by the stators 7, 7, respectively.
Is a bent portion having an L-shaped cross section, and as also shown in FIG. 4, a cutout portion for receiving the above-mentioned fixing metal fitting 1 in the intermediate portion on the base end side fixed by the insertion holes 27, 27 in the stators 7, 7. twenty one
A notch 22 is formed on the front side of the wire receiving surface 17 so as to fit into the wire receiving surface 17 from above.

Regarding the attachment of such a wire receiving fitting 2, as shown in FIG. 2, a flat plate shaped wire receiving fitting having a slightly curved front end is used instead of an L-shaped cross-section because a countersunk screw 7 is used. Obviously, even if it is fixed to the upper surface of the side surface portion 31 with the countersunk screw 2 as described above, it does not hinder the turning operation of the tool with respect to the above-described fastener 6.

As shown in FIG. 5, the operation relationship of the above-described device according to the present invention is as follows. The wire fixing metal fitting 1 is a pressing point by the fastener 6 with the upper end corner portion of the receiving surface 30 as a fulcrum as shown in FIG. To a messenger wire, which acts as a pallet composed of a distance a to the tip and a distance c to the tip, and the receiving metal fitting 2 is fixed to the messenger wire 1 with the distance b to the messenger wire pressing point of the receiving metal fitting 2. Tighten 5 or 5a. In other words, the upper end corner portion of the receiving surface 30 is used as the fulcrum 38, and the fastener 6
The displacement of the base end side (on the side of the locking portion 15 in the figure) of the wire fixing metal fitting 1 given by the rotation of the wire is greatly amplified by the difference between the distances a and c, and is detected on the other end side of the wire fixing metal fitting 1. Therefore, a large opening β can be obtained by a slight rotation, and in this case, if the fastener 6 is loosened due to the difference between the distances a and c, the distance c is longer than a. The tip end of the messenger automatically descends accurately to secure the formation of the opening port β, which facilitates the attachment / detachment of the messenger wire. Further, since the amount of rotation (tightening margin) of the fastener 6 is small as described above, the tightening allowance portion of the fastener 6 can be made large as shown by d in FIG. Sometimes the fastener 6 does not fall off.

As shown in FIG. 2, when the messenger wire is attached or detached as described above, the guide ridges 19 are provided on both sides of the upper surface of the main body case 11 so as to face each other. It is possible to avoid getting caught in and get a smooth outfit.

Further, as is clear from FIGS. 1, 2 and 5, the tightening and releasing work can be performed while confirming the tips of the fixing metal fitting 1 and the receiving metal fitting 2 and the head of the fastener 6, so that the work can be carried out accurately. Further, as shown in FIGS. 5C and 5D, even if the messenger wires 5 and 5a have considerably different diameters, they can be easily and accurately tightened and fixed. Moreover, since the fixing metal fitting 1 is assembled by being sandwiched by the receiving metal fittings 2, it does not fall off, and in combination with the fact that the fastener 6 does not fall off as described above, there is no risk of parts being lost. Incidentally, as shown in FIG. 5 (E), it can be freely applied to the mounting of the device 10 using the wall mounting bracket 4.

"Effect of the device" According to the present invention as described above, the messenger wire can be easily and accurately attached to and detached from the television co-listening device having a considerable weight, and the stable attachment can be performed appropriately even when the wire diameter changes. In addition to being able to do the work, it is possible to perform an accurate visual tightening and loosening operation with stable fasteners that are planted in the case body, and it is less likely that parts will be lost or lost during high-altitude work, and the wire The wire receiving metal fitting fixed to the main body case has the effect of being stable because it is tightened by a fastener fixed to the main body case, and it is a device having a great effect in practical use.

[Brief description of drawings]

The drawings show the technical contents of the present invention. FIG. 1 is a side view of a co-listening device having a mounting mechanism according to the present invention, and FIG. 2 shows a fitting state and a disassembled state of a top portion thereof. FIG. 3 is a perspective view, FIG. 3 is a plan view of the wire fixing bracket, FIG. 4 is a front view of the wire receiving bracket, and FIG. 5 is a side view showing the working relationship between the wire fixing bracket and the wire receiving bracket according to the present invention. FIG. 6 and FIG. 6 are side views showing modified examples of the seat and the wire fixing fitting. However, in these drawings, 1 is a wire fixing bracket, 2 is
Is a wire receiving fitting, 3 is a seat, 4 is a wall mounting fitting, 5,
5a is a messenger wire, 6 is a clamp, 7 is a stator, 10
Is a co-listening device, 11 is its body case, 12 is its lid, 14 is a constricted part, 15 is a locking part, 16 is an insertion hole, 17 is a wire receiving surface, 19
Is a guide ridge, 21 is a notch, 22 is a notch, 27 is an insertion hole,
30 is a receiving surface, 31 is a side surface portion, 32 is a screw hole, 33 is a groove portion, 34
Is a fixing metal flank, 35 is a screw hole, 37 is a locking portion, and 38 is a fulcrum.

Claims (1)

(57) [Scope of utility model registration request] 1. A recessed receiving surface for receiving a proximal end side of a wire fixing fitting is formed in an intermediate portion of a receiving seat formed in an apparatus, and an engaging portion for the wire fixing fitting is formed in the vicinity of the receiving surface. Together with forming an escape surface of the fixing metal fitting on the outer surface side, forming a wire receiving surface at the tip of the wire fixing metal fitting, and forming a notch on the wire receiving metal fitting attached to the receiving seat from above the wire receiving surface. And a fastener inserted on the proximal end side of the wire fixing fitting is screwed into the receiving surface, and a fulcrum for the fixing fitting is formed between the fastener and the fixing fitting escape surface. A messenger wire mounting mechanism for a co-listening device.