JPH10132623A - Anchor structure for signal cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the breakage of the covering of a signal cable and the disconnection of the signal cable by preventing the signal cable from being subjected to an excessively strong force. SOLUTION: On the side of a float incorporating electronic equipment, a signal cable 5 drawn out of the float 5 is wound around two bushes 16 and 17 in the form of a numerical character '8' through the grooves of the bushes 16 and 17 and anchor ropes 13 and 14 are respectively passed through the holes of the bushes 16 and 17 and tied so as to bundle the cable 5 wound in the '8' form, and then, an anchor rope 15 which bundles the ropes 13 and 14 is fixed to the fitting section of the float. The same structure is constructed on the side of a sensor which is hung from the cable 5. Therefore, when a tension occurs in the cable 5 due to the weights of the cable 5 and sensor or a water flow which comes into collision with the cable 5 and sensor, the tension can be scattered throughout the cable 5 wound around the bushes 16 and 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for an apparatus for collecting marine information, particularly an underwater information collecting apparatus having a body on the water surface side and a sensor suspended from the body underwater via a signal cable. The present invention relates to a signal cable retaining structure for reducing a load applied to a signal cable near a main body or a sensor.

[0002]

2. Description of the Related Art FIG. 3 is a diagram showing a conventional signal cable retaining structure, and FIG. 4 is an overall view of an underwater information collecting apparatus provided with the retaining structure. In the figure, reference numeral 1 denotes a float manufactured as a watertight housing, in which an electronic device 2 is provided, and both of them constitute a main body of the device.

[0003] The float 1 is provided with a cable lead-out hole (pull-out part) 3 at the bottom, and has an attachment part 4 for retaining the cable at the outer surface of the bottom. Reference numeral 5 denotes a signal cable, reference numerals 6 and 7 denote retaining cords woven into a sleeve (cylindrical) made of nylon fiber or the like, reference numeral 8 denotes a sensor, and reference numeral 9 denotes a retaining attachment portion provided on the upper surface of the sensor 8.

[0004] The upper end of the signal cable 5 is connected to the electronic equipment 2 inside the float 1, and the signal cable 5 is drawn out of the float 1 through the cable lead-out hole 3. Is watertight. The signal cable 5 drawn out of the float 1 is provided with a hole 10 formed by loosening the fiber of the retaining cord 6.
From the lower end thereof, is pulled out from the lower end thereof, and is knotted (eight-shaped knot 8) together with the tether 6 by the knot 11
It is fixed to.

[0005] The upper end of the retaining cord 3 is fixed to the mounting portion 4 on the lower surface of the float 1. In this state, the length of the upper end side portion 5 a from the cable outlet 3 to the knot 11 of the signal cable 5 is equal to the float 1. Is longer than the length of the vertical line from the bottom surface to the knot 11. The lower end of the signal cable 5 is introduced into the sensor 8 after being subjected to watertight treatment, and is connected to a circuit or the like inside the sensor 8. On the sensor 8 side, the signal cable 5 is pulled from the upper end of the retaining cord 7. It is threaded inside and pulled out of the tether 7 through a hole made by loosening the fibers.

The signal cable 5 is also knotted with an eight knot together with the retaining cord 7 like the upper part, and the knot 12
The lower end of the retaining string 6 is fixed to an attachment portion 9 on the upper surface of the sensor 8, and the signal cable 5 in this state from the introduction portion to the sensor 8 to the knot 12 The length of the lower end portion 5b is longer than the length of the vertical line from the upper surface of the sensor 8 to the knot 12.

[0007] The apparatus having such a configuration floats the float 1 on the water surface as shown in FIG.
, The sensor 8 is suspended at a predetermined depth in the water via the signal cable 5. In this state, the weight of the signal cable 5 and the sensor 8 and the load caused by the water flow hitting the signal cable 5 and the sensor 8 are retained by the retaining cords 6 and 7. At the upper end portion 5a and the lower end portion 5b of the signal cable 5.
Load is prevented.

In other words, such an apparatus for suspending the sensor 8 underwater from the float 1 via the signal cable 5 must have a structure for receiving the weight of the signal cable 5 and the sensor 8 and the load due to the water flow. Since a large stress is applied to the signal cable 5 at the cable outlet 3 of the float 1 and the cable introduction portion of the sensor 8, the signal cable 5 may be damaged or disconnected. 5 is tied to the eight knots and the retaining cords 6 and 7 are
9 to form a detent structure, whereby a load is prevented from being applied to the upper end portion 5a and the lower end portion 5b, thereby preventing disconnection and the like.

[0009]

However, in the above-mentioned prior art, the signal cable length becomes longer and the weight increases as the suspension depth of the sensor is increased, and a strong water current flows in the water. If the load increases due to the cable and the sensor, or if the weight of the sensor increases due to an increase in the number of converters inside the sensor and the accompanying addition of electronic circuits, a large tension is applied to the signal cable. A large load is applied to the knot tied to the eight knot with the retaining string tied to the mounting part at the top and bottom of the knot, this knot tightens, the bending radius of the upper and lower knots decreases,
There is a problem that the coating of the signal cable is damaged or the signal cable is broken.

[0010] Such damage to the coating of the signal cable and breakage of the signal cable are remarkable on the float side of the main body. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to realize a signal cable retaining structure capable of preventing a cable covering from being damaged or a cable being broken in such a device.

[0011]

SUMMARY OF THE INVENTION Therefore, the present invention provides a water-side main body, a sensor suspended in water, and a signal for connecting the main body to the sensor and suspending the sensor from the main body. A signal cable retaining structure for a device provided with a cable and two ring-shaped bushes having a hole at the center and a diameter sufficiently larger than the diameter of the signal cable having a groove at the outer periphery. As one set, on the main body side, the signal cable is wound around the grooves of the two bushes so as to form a figure of eight, and the signal cable wound around the figure of eight is drawn through a retaining cable in a hole of each bush. It is characterized in that the cable is tied so as to be bundled and that the retaining cable is fixed to an attachment portion of the main body.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cable retaining structure according to the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing an embodiment of the present invention, and FIG. 2 is a side view thereof. In the figure, 5 is a signal cable, 13 to
Reference numeral 15 denotes a retaining cable made of nylon or the like, which is stronger than the signal cable 5.

Reference numerals 16 and 17 denote ring-shaped bushes made of a material such as rubber, and have a diameter sufficiently larger than the diameter of the signal cable 5. Each of the bushes 16 and 17 has a hole 18 at the center, and a groove 19 is formed on the outer periphery. Here, the upper end of the signal cable 5 is connected to the electronic device 2 inside the float 1 shown in FIG. 4, and the signal cable 5 is drawn out of the float 1 from the cable drawing hole (drawing portion) 3. The cable outlet 3 is watertight.

The signal cable 5 drawn out of the float 1, that is, out of the main body, is guided to a groove 19 of one bush 16, and from the groove 19 of the one bush 16 to a groove 19 of the other bush 17, the figure 8 is formed. After being wound several times so as to draw, it is pulled out in the direction opposite to the introduction direction.
Then, the signal cables 5 wound in a figure 8 are tied together through one ends of the retaining ropes 13 and 14 into the holes 18 of the bushes 16 and 17, respectively.
The other ends of the ropes 3 and 14 are bundled to form a retaining cable 15, and the upper end of the retaining cable 15 is fixed to the mounting portion 4 on the lower surface of the float 1 shown in FIG.

The lower end of the signal cable 5 is introduced from the upper surface of the sensor 8 while maintaining watertightness as shown in FIG.
In the vicinity of the sensor 8, it is fastened to the mounting portion 9 of the sensor 8 by using the same ones as the above-described holding ropes 13 to 15 and bushes 16, 17. In this state, the bush 16, 1 is inserted through the cable outlet 3 of the signal cable 5.
The length of the upper end portion 5a up to 7 is longer than the length of the vertical line from the bottom surface of the float 1 to the bushes 16 and 17, and the length from the introduction portion of the signal cable 5 to the sensor 8 to the bush. The length of the lower end portion 5b is longer than the length of the vertical line from the upper surface of the sensor 8 to the bush, so that each has an extra length.

In the apparatus having such a configuration, the float 1 is floated on the water surface as shown in FIG.
, The sensor 8 is suspended at a predetermined depth in the water via the signal cable 5. In this state, the weight applied to the signal cable 5 and the sensor 8 due to the weight of the signal cable 5 and the water flow applied to the sensor 8 causes a load to be applied to the signal cable 5. It is received by the signal cable 5 wound around the bushes 16 and 17, thereby preventing a load from being applied to the upper end portion 5 a and the lower end portion 5 b of the signal cable 5.

In this embodiment, even if tension is applied to the signal cable 5 by the load, the signal cable 5
Is wound around the bushings 16 and 17 having a sufficient diameter, the force is dispersed throughout the signal cable 5 wound around the bushings 16 and 17, the winding diameter is not reduced, and an excessive force is applied to the signal cable 5. Can be prevented.

Such an action can be obtained also in the bush on the sensor 8 side. In the above-described embodiment, the retaining structure is configured by using the bushes 16 and 17 and a similar bush on the float 1 side and the sensor 8 side of the signal cable 5, respectively. Since the load when applied is larger on the float 1 side than on the sensor 8 side, the bush 16,
17 and the sensor 8 side is effective even if it has the same structure as the conventional one.

[0019]

As described above, according to the present invention, a pair of ring-shaped bushings each having a hole at the center and a groove sufficiently larger than the diameter of the signal cable having a groove at the outer periphery are provided. And winding the signal cable on the main body side of the device so as to form a figure 8 across the grooves of the two bushes,
The signal cables wound in the figure 8 are tied so as to be bundled through retaining holes in the holes of each bush, and the retaining cables are fixed to the mounting portion of the main body.

Therefore, even if tension is generated in the signal cable due to the weight of the signal cable and the sensor and the load caused by the water flow hitting the signal cable and the sensor, the signal cable is formed into a figure 8 in a bush having a sufficient diameter. Since the cable is wound, the force is dispersed throughout the signal cable wound around the bush, the winding diameter is not reduced, and it is possible to prevent the signal cable from being subjected to an excessive force. The effect of preventing breakage and disconnection of the signal cable can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a signal cable retaining structure according to the present invention.

FIG. 2 is a side view of the embodiment of FIG.

FIG. 3 is a diagram showing a conventional technique.

FIG. 4 is an overall view of an underwater information collecting apparatus provided with a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Float 2 Electronic device 3 Cable lead-out hole 4 Attachment part 5 Signal cable 8 Sensor 9 Attachment part 13-15 Retaining cable 16, 17 Bush 18 Hole 19 Groove

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kosuke Maeda Oki Electric Industry Co., Ltd. 1-7-12 Toranomon, Minato-ku, Tokyo

Claims (4)

[Claims] 1. A signal cable for an apparatus comprising: a body on a water surface side; a sensor suspended in water; and a signal cable for connecting the body and the sensor and suspending the sensor from the body. A retaining structure, wherein a pair of ring-shaped bushes having a diameter sufficiently large as compared with a diameter of a signal cable having a hole in a central portion and a groove in an outer periphery is formed as a set, and The cable is wound around the grooves of the two bushes so as to form a figure eight, and the signal cables wound around the figure eight are tied in a bundle in the holes of each bush through a retaining cable. A signal cable retaining structure fixed to a mounting portion provided in a main body. 2. The signal cable retaining structure according to claim 1, wherein a length of an upper end portion of the signal cable pulled out from the main body to a bush is from a length of a vertical line from a bottom surface of the main body to the bush. The signal cable retention structure, which is also long. 3. A signal cable for an apparatus comprising: a body on a water surface side; a sensor suspended under water; and a signal cable for connecting the body and the sensor and suspending the sensor from the body. A retaining structure, wherein a pair of ring-shaped bushes having a diameter sufficiently large as compared with a diameter of a signal cable having a hole in a central portion and a groove in an outer periphery is formed as a set, and The cable is wound so as to form a figure 8 across the grooves of the two bushes, and the signal cable wound around the figure 8 is tied in a bundle in each hole of the bush through a retaining cable. It is fixed to a mounting portion provided in the main body, and the signal cable is wound around the groove of the two bushes so as to form a figure 8 on the sensor side, and is retained in the hole of each bush. With connecting to bundle the signal cable wound around the shaped of the 8 through, anchoring of the signal cable, characterized in that fixed the anchor rope to a mounting portion provided in the sensor structure. 4. The signal cable retaining structure according to claim 1, wherein a length of an upper end portion of the signal cable pulled out from a bottom surface of the main body to a bush is defined by a length of a vertical line from the bottom surface of the main body to the bush. It is longer than the length, and the length of the lower end part from the introduction part of the signal cable introduced from the upper surface of the sensor to the bush is longer than the length of the vertical line from the upper surface of the sensor to the bush. Signal cable retaining structure.