JPH0614099Y2 - Rectifier rope end stay structure for streamer - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a rectifying rope used in a streamer for underwater observation, and when the end of the rectifying rope is connected to a connecting fitting, it may be pulled out. The present invention relates to a rectifying rope retaining structure for securely retaining the rectifying rope.

[Conventional technology]

FIG. 3 is a side sectional view of a main part of a conventional streamer straightening rope end withdrawing structure for streamers, and FIG. 4 is an explanatory view showing a conventional assembling procedure.

In the figure, reference numeral 1 denotes a flow straightening rope used for a streamer, which is formed of a mesh material into a tubular shape.

2 and 3 are metal screw shafts having a threaded portion at the lower end,
4a and 4b are holders which are also made of metal and in which a hollow cylinder is axially divided into halves from the middle. And one of the holders 4a and 4b is a holder 4a.
In the peripheral surface thereof, through holes 5a and 5b for inserting the screw shafts 2 and 3 are arranged in two locations along the axial direction, and in the other holder 4b, facing the through holes 5a and 5b, Screw holes 6a and 6b are formed to be screwed into the screw portions of the screw shafts 2 and 3.

These holders 4a and 4b cover the outer periphery of the terminal portion of the flow straightening rope 1 so as to sandwich it from above and below or left and right, and hold the flow straightening rope 1 so as not to pull out.

7 is the screw shafts 2 and 3, and holders 4a and 4b
Is a substantially cylindrical connecting fitting made of a lightweight metal material such as aluminum, and the inside hole 7a of the connecting fitting 7 is different from the metal forming the holder.
The diameter is large enough to insert a and 4b, and a screw portion is provided on the opening side. By inserting the holders 4a and 4b into the hole 7a, the outer peripheries thereof are covered and protected. A step portion 7b is formed on the outer peripheral surface of the connecting metal fitting 7 so as to be constricted substantially in the center thereof, and two insertion holes 7c are provided on one end side so as to face each other in the radial direction. Has been.

Reference numeral 8 denotes a pin to be inserted into the insertion hole 7c, which is made of the same metal material as that of the connection fitting 7.

Reference numeral 9 denotes a pressing metal fitting, which is also made of the same metal material as the connecting metal fitting 7 and the pin 8, that is, a light metal material such as aluminum, and which has an outer periphery of a hole 9a through which the flow straightening rope 1 can pass. It has a ring shape as the screw portion 9b and is provided with a flange portion 9c at one end.

Reference numeral 10 is a molding material such as urethane.

Next, the procedure of assembling each of the above-mentioned components will be described with reference to FIG.

First, the end of the rectifying rope 1 is first pierced into the hole 9a of the metal fitting 9.

Next, the ends of the rectifying rope 1 that has been penetrated are unwound so that the two screw shafts 2 and 3 can respectively penetrate, and holes 1a are opened at two locations.

The hole 1a of the straightening rope 1 and the through holes 5a and 5b of the holder 4a are screw holes 6a and 6b of the holder 4b.
Apply to the flow straightening rope 1 so as to sandwich it from above and below or from the left and right so that and correspond. As a result, the straightening rope 1
The terminal portion is covered with both holders 4a and 4b.

And one of the holders 4a and 4b is a holder 4a.
The screw shafts 2 and 3 are respectively inserted from the through holes 5a and 5b of the holder, penetrate the hole 1a of the flow straightening rope 1, and further into the screw holes 6a and 6b of the holder 4b on the opposite side. The screw portions are screwed together to be penetrated, and the holders 4a and 4b and the flow straightening rope 1 are fixed.

After inserting the end of the rectifying rope 1 held by the holders 4a and 4b into the hole 7a of the connection fitting 7, the pin 8 is inserted into the hole 7c provided at one end, and the pressing fitting 9 is connected to the connection fitting. A rotation stopper is provided so as not to rotate within 7.

Then, the pressing metal fitting 9 that has been passed through the straightening rope 1 first is pulled to the terminal portion and pressed against the connecting metal fitting 7, and is screwed into the screw portion of the hole 7a of the connecting metal fitting 7 by the screw portion 9b. By fixing, the hole 7a of the connection fitting 7 is closed by this.

Finally, the connecting member 7 is molded with the molding material 10 so as to cover the entire connected portion from the step 7b to the end of the rectifying rope 1, and the rectifying rope 1, the connecting fitting 7, and the pressing metal fitting are provided. Tighten fixation with 9.

By doing so, the flow straightening rope 1 is securely held and retained without being pulled out from the connecting fitting 7.

[Problems to be solved by the device]

However, according to the conventional technique described above, the number of parts used for retaining the rectifying rope is large, and most of these parts are made of metal,
There is a problem in that the number of work steps for connecting is very large, which is complicated and the work time is long, which results in high costs for processing and assembling the parts.

Further, since these parts are made of metal, the weight of the connecting portion becomes very heavy, and therefore the specific gravity increases, and the posture of the streamer is inclined, which adversely affects the performance.
Further, since the screw shaft and the holder are not the same as the connecting fitting and the pressing fitting and are made of different metals, they may be corroded, and therefore they cannot be said to be preferable materials.

And when corroded, of course the corroded metal parts themselves,
There is a problem that other parts will also be corroded, the molded part will be affected, and the rectifying rope may eventually come off from the connecting fitting.

Therefore, the present invention has been made to solve the above-mentioned problems, and by avoiding the use of different kinds of metal materials and reducing the number of parts, the cost can be reduced and the work efficiency can be improved. In addition, the purpose of the present invention is to provide an excellent rectifying cable rope terminal detention structure for streamers that reduces the weight of the connection part to lower the specific gravity, eliminates the risk of corrosion, and does not adversely affect the streamer performance. It is a thing.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention allows a straightening rope formed in a tubular shape by a mesh shape to pass through a ring-shaped pressing metal fitting having an outer periphery as a screw portion and a flange portion at one end, so that the outer periphery is almost The screw portion of the pressing metal fitting is screwed and fixed to the screw portion formed at the inner end of the substantially cylindrical connecting metal fitting having the step portion constricted in the center, and the straightening rope from the step portion of the connecting metal fitting is fixed. By covering the entire connecting portion up to the end of the with a molding material, in the streamer straightening rope terminal retracting structure for retaining the straightening rope to the connection fitting, it is penetrated by the pressing fitting of the straightening rope. The terminal portion is molded with a resin material, and the molded portion is inserted into the connection fitting.

[Action]

In the above-mentioned structure, first, the end of the straightening rope is unwound by a predetermined length. This is penetrated into the hole of the pressing metal fitting, and the unwound end of the straightening rope extending through the pressing metal fitting is made to have an outer diameter larger than the diameter of the hole of the pressing metal fitting. Mold and solidify with resin, and fix the pressing metal fitting and the straightening rope together.

Then, the fixed state is visually checked to see if voids or voids due to the remaining air bubbles are formed, and at this stage, a defective product is found and removed.

In this way, the pressing metal fitting that is reliably molded and connected and fixed to the rectifying rope is inserted into the connecting metal fitting with the end portion of the rectifying rope as the tip. Then, after the screw part of the pressing metal fitting is screwed and fixed to the screw part in the connecting metal fitting, the pin is inserted into the insertion hole of the connecting metal fitting to stop the rotation.

Finally, the entire connected portion from the stepped portion of the connecting fitting to the end of the straightening rope is covered with the molding material. As a result, the flow straightening rope is firmly fixed to the connection fitting and is reliably retained by the connection fitting.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of an essential part showing an embodiment of the streamer straightening rope end retracting structure for a streamer of the present invention, and FIG. 2 is an explanatory view showing a work procedure of this embodiment.

In FIG. 1 and FIG. 2, 1 is a straightening rope, 8 is a pin, 9 is a pressing metal fitting, and 10 is a molding material. Since these are almost the same as those described in the past, they are the same. The reference numerals are given and the description thereof is omitted.

Reference numeral 11 denotes a substantially cylindrical connecting fitting made of a lightweight metal material such as aluminum, which has a shape substantially similar to the conventional one. That is, the stepped portion 11 that is confined to the center of the outer circumference
In addition, a bottomed hole 11a having a threaded portion on the opening side is formed on the inner side, and two insertion holes 11c are provided at one end side of the outer peripheral surface so as to be opposed in the radial direction. It is what has been. However, the inner diameter of the hole 11a is approximately the same as the outer diameter of the screw portion 9b of the pressing metal fitting 9.

Reference numeral 12 is a resin material such as an epoxy resin as an adhesive.

With the above-mentioned configuration, the procedure of the connecting work will be described.

First, the end portion of the straightening cable rope 1 which is unwound by a predetermined length is pressed into the hole 9a of the fitting 9.

Then, the terminal portion of the straightening rope 1 that has come out through this is fitted into a molding die having an outer diameter larger than the diameter of the hole 9a of the pressing metal fitting 9, and the resin material 12 is injected and solidified. At this time, the resin material 12 penetrates the pressing metal fitting 9 along the mesh of the flow straightening rope 1 and permeates a part of the flow straightening rope 1 after the pressing metal fitting 9. Therefore, the resin material 12 in the impregnated portion is solidified, so that the pressing fitting 9
And the rectifying rope 1 will be firmly fixed and connected.

In this way, when the resin material 12 is hardened, the flow straightening rope 1 is taken out from the molding die, and it is confirmed whether or not the hardened portion is surely molded.

That is, it is discovered and removed at this stage that the resin material 12 is not surely flowed into the mold to form a gap, or bubbles are left and a so-called void is formed. This confirmation work can be easily performed visually, and by this confirmation, the flow straightening rope 1 whose mold part is in a defective state is prevented from being inserted into the connection fitting 11.

If the flow straightening rope 1 is assembled in a state where a gap or a void is formed in the mold portion, the reliability against water pressure resistance in water will decrease.

In this way, when it is confirmed that the end portion is surely molded, the pressing metal fitting 9 penetrating and fixed to the straightening rope 1 is fixed by the resin material 12 of the straightening rope 1. Connecting fitting 11 with the terminal end
It is inserted in the hole 11a. Then, the screw portion of the pressing metal fitting 9 is screwed and fixed to the screw portion provided on the opening side of the hole 11a.

After that, the pin 8 is inserted into the insertion hole 11c of the connection fitting 11 to prevent the pressing fitting 9 from rotating inside the connection fitting 11.

Finally, the entire connecting portion from the constricted step portion 11b of the connection fitting 11 to the portion of the flow straightening rope 1 that has been soaked and hardened with the resin material 12 is covered with the molding material 10 and molded.

As a result, the rectification rope 1 and the connection fitting 11 are fixed more firmly, and the rectification rope 1 is securely connected to the connection fitting 1.
Stay at 1.

〔The invention's effect〕

As described above, according to the present invention, the end portion of the straightening cable rope formed by the mesh shape is penetrated into the ring-shaped pressing metal fitting having the thread portion on the outer periphery and the flange portion at one end. The terminal portion that penetrates is molded with resin so that the outer diameter is at least larger than the diameter of the hole of the pressing metal fitting. Then, the molded portion is inserted into the connection fitting, and the screw portion formed at one end of the hole in the connection fitting and the screw portion of the pressing fitting are screwed and fixed, and then the step portion of the connection fitting is attached. The entire connecting portion from the end to the end of the straightening rope is covered with the molding material.

This greatly reduces the number of parts when connecting the rectifying rope, and the metal parts are made of lightweight metal such as aluminum and the parts made of different metals are not used. Is significantly lighter, so the posture of the streamer is close to horizontal without tilting and performance is not adversely affected.

Further, since the number of parts is reduced, the processing cost of parts is reduced, and the number of work steps is also reduced. Accordingly, work time is shortened and work efficiency can be improved.

Further, since different kinds of metals are not used, there is no risk of corrosion, and therefore the rectifying rope does not come off due to the corrosion of the connecting parts as in the conventional case.

In addition, according to the present embodiment, the terminal portion of the rectifying rope is fixed and molded with the resin material before being inserted into the connection fitting, so that the molded state of the rectifying rope is confirmed. be able to. This can be easily confirmed by visual inspection, and a defective state such as a gap formed in the molded portion or a void due to the remaining air bubbles is found and removed.

Then, it is possible to prevent the mold having a defective state from being inserted into the connection fitting, and consequently improve the water pressure resistance of the connection portion.

For this reason, it is possible to obtain an excellent streamer straightening rope terminal detention structure for a streamer that does not adversely affect the performance of the streamer, is low in cost, and has high workability and reliability.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view of an essential part showing an embodiment of the present invention, and FIG.
FIG. 4 is an explanatory view showing a work procedure of this embodiment, FIG. 3 is an enlarged sectional view of a main part of a conventional example, and FIG. DESCRIPTION OF SYMBOLS 1 ... Rectifier rope, 8 ... Pin 9 ... Press fitting, 10 ... Mold material 11 ... Connection fitting, 12 ... Resin material

Claims (1)

[Scope of utility model registration request] 1. A stepped portion formed by meshing a straightening rope formed in a tubular shape into a ring-shaped pressing metal fitting having an outer periphery as a screw portion and a flange portion at one end, and being constricted substantially at the center of the outer periphery. The threaded portion of the pressing metal fitting is screwed into and fixed to the threaded portion formed on the inner end of the substantially cylindrical connection metal fitting having the connection fitting, and the connection from the step portion of the connection metal fitting to the end of the straightening rope. By covering the entire portion with a molding material, in the streamer straightening rope terminal withdrawal structure in which the straightening rope is retained in the connection fitting, the terminal portion penetrated by the pressing fitting of the straightening rope is made of a resin material. A streamliner straightening rope end retention structure for a streamer, characterized in that the molded portion is inserted into the connection fitting.