JPH012276A - Universal joint for cables - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a universal joint for cables, and more specifically, for cables such as electric wires, or cables that can connect conductors with 11 rotary functions. Regarding universal joints.

(Prior art) Conventional 1 For example, in a device for observing seabed earthquakes, a sensor is installed on the seabed or in the sea, and the signal received by this sensor is transmitted to a recording or observation device at sea. , a cable is used to connect the sensor to a buoy floating on the sea surface.

In such an example, the buoy moves three-dimensionally on the sea surface under the influence of waves, currents, wind, etc. Therefore, when a cable from the ocean floor is directly connected to the shaft member of a buoy, the cable is often damaged by the action of the buoy's rotation. In other words, when a cable or conductor, such as an electric wire, is used by passing it through a connection part that rotates or bends, the cable will be rotated about its longitudinal axis or subjected to a bending action, causing it to twist or bend. Eventually, it will be damaged or cut.

In order to avoid this, conventionally, for example, the cables were not passed inside the connecting portions that rotate or bend with respect to each other, but the cables were allowed to have a certain length to pass outside the connecting portions.

(Problems to be Solved by the Invention) As mentioned in L, in the conventional technology in which the cable is passed outside the rotating part, the cable is damaged by the action of the rotation of the buoy, and in many cases there are various problems. occurs.

In addition, in equipment for observing seabed earthquakes as described in 1-1, the buoy moves three-dimensionally on the sea surface under the influence of waves, currents, wind, etc. Even if the cable is connected by detouring along the buoy's shaft member rather than directly connected to the member, the cable will be affected by the buoy's rotation due to the effect of the buoy's rotation.
It may become twisted and cause an inconvenient problem.

(Object of the Invention) The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a universal joint for cables that can be used through mutually rotating members. There is a particular thing.

Another object of the present invention is to provide a universal joint for cables that can ensure the waterproofing of cable connection parts.

For the above purpose, the present inventors have already invented a universal joint as shown in FIGS. 5 and 6, and filed an application as Patent Application No. 236:105 of 1985.

The universal joint 110 showing this previously filed invention has a conductor 113 as shown in FIGS. 5 and 6.
is configured to exit outside the universal joint 110 between the hollow portion of the hollow tubular member 124 and 125 and a conductor passageway 136 opened in the eyepiece 126. This is also the case between the pair of eyepieces 127 and the tubular member 125. Therefore, conductor 1
The 13 coiled curl portions 138 are connected to the couplers 120,
When inserted into the passage 136 of 121 and the hollow conductor passages of the tubular members 124 and 125, it inevitably passes through a complex orthogonal passage. Therefore, the curled portion 138 of the conductor 113 may come into contact with the wall or bend of the conductor passageway during use and be damaged.

Further, the presence of a complicated orthogonal passage in the connecting device makes it difficult to insert the conductor 113 into the conductor passage.

The present invention is an improvement of the above invention, in which the portion of the conductor that exits the universal joint is located between the eyepiece and the pair of tubular members as shown in FIGS. 2 and 3. Therefore,
The operation of inserting the coiled conductor section into the hollow circular member is much easier and less likely to cause damage. Also, there is almost no risk that the curled conductor will be damaged during use.

Thus, an object of the present invention is to provide a universal joint for cables that is safe and easy to insert a curled conductor into and can stably absorb rotation of the cable.

(Example) Next, a preferred example of the present invention will be described based on the drawings.

FIG. 1 shows a case where a cable 12 rising from the seabed is connected to a buoy 14 using the universal cable joint 10 of the present invention. In addition, the part indicated by the dotted line 16 in FIG. 1 is for explaining the conventional connection, and shows a state in which the length [axis] of the buoy 14 is bypassed.

In a first embodiment of the invention, the cable universal joint lO includes a pair of couplers 20.21 and a double force puller 20.21, as shown in FIGS.
? It consists of eyepieces 22, 23 for connection and hollow tubular members 24, 25.

The coupler 20.21 of this example has bulging connecting portions 20a, 21a with a circular cross section and base portions 20b, 21b continuous with the connecting portions 20a, 21a.
A passage 36 for passing the conductor 13 of the cable 12 is formed in the central part in the long f-axis direction. Further, an opening 30 is formed in the coupler 20° 21 in a direction perpendicular to the long f axis into which a tubular member 24, 25, which will be described later, is inserted. A flange device 34 is appropriately attached to the end surface of the base 20b of the coupler 20 in order to connect the cable 12.

The eyepieces 22 and 23 are two plates 22a, 22b, and 23a, each having a predetermined gap.

23b, which are arranged one above the other with the substrate 26 at the center. From this arrangement, one plate body 22a, 22b constitutes the eyepiece 22.23.

A gap formed by 23a and 23b is formed so as to be perpendicular to each other with the substrate 26 as a boundary.

In this way, one plate body 22a, 2 constitutes each eyepiece 22, 23 disposed in one direction with the substrate 26 as the center.
2b, 23a, 23b include tubular members 24.2, which will be described later.
5 are respectively formed.

The tubular member 24.25 has a cylindrical shape, and approximately at the center of the side wall there is a passage 36 for passing the conductor 13 in the longitudinal axis direction of the coupler 20.21 and openings 24a, 25 having the size of a turn.
a is formed.

Reference numeral 28 indicates the eyepieces 22, 23 and the tubular member 24.2.
This is a cylindrical bearing disposed between the bearing 28 and the bearing 28.
The tubular members 24 and 25 are configured to slide in contact with each other to reduce frictional resistance.

Further, a plate-shaped bearing 29 is provided on the flange surface of the eyepiece and the sliding surface of the coupler to reduce frictional resistance.

Universal stain 1 India lO for cable marked i is L
There is a group consisting of reporter members, and the group ☆ is:
Opening 3o of coupler 20.21 and eyepiece 22,2
3, and the tubular members 24 and 25 are inserted 71, and the opening 24a of the tubular member 24 and the passage 36 are aligned, and the stopper member 33 is inserted. At this time, the bearing 28 is connected to the eyepieces 22 and 23? ,? 24 and 25, and a bearing 29 is interposed between the coupler 20, 21 and the eyepieces 22, 23.

According to this invention, as shown in FIG.
and into the hollow tubular member 24 through the passageway 36. Within this tubular member 24, the conductor 13 forms a multi-turn coil 38, the end of which exits the tubular member 24, bypasses the outside of the plates of the eyepieces 22a, 22b, and attaches to the other coupler 21. It is introduced into the interior of the tubular member 25 from between the ends 11 of the hollow tubular member 25 .

The structure of the other coupler 21 is completely similar to the structure of the Lt coupler 20, and as described above, the conductor 13 inserted into the tubular member 25 forms a multi-turn coil within this tubular member 25, As described for the coupler 20, the end of the coil may be directly connected to a cable extending from the base 21b to the fin 14, for example, via a flange device 34 via a conductor passage (not shown) provided in the base 21b. I'll come.

Note that the eyepieces 22, 23 and the hollow tubular member 24.2
Attach a cover plate 40 to the outside of 5 with an appropriate L step,
The conductor 13 can be protected and, if necessary, made tight.

Universal cable for cables in the embodiment of Note 21-
Since the joint 1O has the configuration as described above, a universal cable joint +
-io allows connecting one coupler 20 or the other coupler 21) Even when rotated about the Ibis 23, the conductor passages 36 in the bases 20a, 21a of the couplers 20.21 Is 13 hollow? A coil 38 is formed inside the i↑-shaped members 24 and 25, and has an allowance of (-) for the length of the conductor 13, so that the rotation applied to the conductor 13 causes twisting, tension, or Even if a force such as compression is applied, each coil 3
8 and does not transmit its effect to other parts of the conductor 13. Therefore, the conductor 1 between the connections
3. There is no risk of damage or cutting.

FIG. 4 shows a cable universal joint according to a first embodiment of the present invention. In this example, Chapter E 1
The same members, arrangement, etc. as in the embodiment are given the same reference numerals, and their explanations will be omitted.

In the joint 50 of this example, the flange assembly 'a34 is not directly connected to the base 20b of the coupler 20 of the joint 10 shown in the Lth embodiment, and the longitudinal axis of the base 20b is centered between the base 20b and the flange assembly 34. 1 (section 20b is attached to the flange device 34).

The rotating device 52 includes a flange portion 54 fixed to the base portion 20b, a hollow shaft portion 56 extending from the flange portion 54, and a support portion 58 attached to the hollow shaft portion 56 so as to be able to rotate along the same axis. and this support i'
A flange portion 54 that connects the cable 12 to the IlI 58 is supported.

Connect the hollow shaft part 56 and the coupler )^120b! The f stage, which is attached to L at a rotational speed of +1T, is done using a well-known technique.

In the joint 50 in this example, the rotating device 52
The conductor 1 passing through the hollow shaft portion 56 of
It is formed as a coil 60 with three or more turns.

Universal joint 50 for cables in this example
In this case, the component corresponding to the join 1-10 of the first embodiment exhibits the same functions and effects as those described in the first embodiment.

However, in the part of the rotating device 52 of the cable l or shim l India 50, there is a rotation iI about the long r axis.
! In the case of movement, the joint 50 can absorb the rotational force acting on the conductor 13 more effectively than the joint 10. That is, in the hollow shaft portion 56 of the third direction rotation device, the conductor 13 is formed into a coil 60 with multiple turns around the long r@ wire.
This is because the effect of external force due to rotation of the conductor 13 about the long axis is absorbed.

Although this invention has been explained by taking as an example the case where the invention is installed and used underwater, this is convenient for explaining that the slow motion acting on the cable 12 is three-dimensional. Universal joints for cables can be widely used for passing cables or conductors through appropriate rotating parts.

[:5? ! [Effect of Light] Since the present invention is constructed as described above, . . . there is a portion extending outside one universal joint or between an eyepiece and a pair of tubular members. Therefore, either the operation of inserting the conductor portion curled into a coil into a hollow circular member, or
It is very easy to use and does not cause any damage. Also, there is almost no risk that the curled conductor will be damaged during use. As described above, the present invention can provide a universal joint for a cable that is safe and easy to handle when handling a curled conductor, and can stably absorb rotation of the cable.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing a case in which the universal cable shim of the present invention is applied to a cable as an example, Fig. 2 is a partially cutaway view showing an embodiment of the invention, and Fig. The side view and FIG. 4 are partially cutaway views showing a second embodiment of the present invention, and FIGS. 5 and 6 are prior examples. lO...Universal stain for the cable of the -th embodiment L India 12...Cable 13...Conductor 20.21.
...Coupler 22.23...Eyepiece 24.25...Tubular member 26...Substrate 28.29...Bearing 30.3
1... Opening 34... Flange 38... Coil 40...
Cover plates 20b, 21b...Coupler base 50...Second τ installation cable universal joint 52...Third direction high rotation device 56...-Hollow shaft portion 58... Support 7. +j? B
60...Coil patent applicant = Gokata Kaiyo Kaihatsu Co., Ltd.: 11 Taiyo Submarine Electric Cable Co., Ltd. Representative patent attorney: Akiyama Atsuhōki 1 Fumikawa 4, 3 Figure 5 6rXJ

Claims (1)

[Claims] 1. Consisting of an eyepiece, a pair of hollow couplers and a hollow tubular member connected to the eyepiece, the eyepiece consists of two sides, upper and lower, with a substrate as the center, with the upper side having a gap. A U-shaped connection part is formed between a plate having two openings and the substrate, and a connection part having substantially the same configuration as the top surface is formed on the bottom surface through the substrate at a position perpendicular to the top surface,
The pair of couplers are formed with openings that align with the openings of the plate and are inserted into the connection spaces of the eyepieces, and the tubular members are inserted into the openings of the couplers and are inserted into the openings of the eyepieces. What is claimed is: 1. A universal joint for a cable, the cable being supported by a cylindrical bearing at the coupler and wound in a coil shape within the tubular member, and having a conductor disposed within the coupler and the tubular member. 2. The universal joint for a cable according to claim 1, further comprising a cover plate fixed to the eyepiece for closing a side surface of the eyepiece and an outer surface of the tubular member. 3. The universal joint for a cable according to claim 1, wherein a flange device for fixing the cable having the conductor is attached to the end face of the pair of couplers. 4. Consists of an eyepiece, a pair of hollow couplers and a hollow tubular member connected to the eyepiece, and the eyepiece consists of two surfaces, upper and lower, centered on the substrate, and the upper surface has two openings with a gap between them. A U-shaped connection part is formed between the plate body and the substrate, and a connection part having substantially the same configuration as the top surface is formed on the bottom surface through the substrate at a position perpendicular to the top surface,
The pair of couplers are formed with openings that align with the openings of the plate and are inserted into the connection spaces of the eyepieces, and the tubular members are inserted into the openings of the couplers and are inserted into the openings of the eyepieces. A conductor is supported in the coupler via a cylindrical bearing, and is wound in a coil shape within the tubular member, and a conductor is disposed within the coupler and the tubular member, and a longitudinal center of the coupler is disposed on one end surface of the coupler. A third direction rotation device capable of rotating around an axis is attached, and the rotation device includes a hollow shaft portion and a support portion that are rotatable with respect to each other, and the conductor passes through the hollow shaft portion through the support portion. A universal joint for a cable, characterized in that the cable is wound into a coil within the hollow portion. 5. Claim 4, characterized in that a cover plate is fixed to the eyepiece for closing off a side surface of the eyepiece and an outer surface of a hollow tubular member disposed at a connecting portion between the side surface of the eyepiece. Universal cable for listed cables
Joint. 6. The universal joint for a cable according to claim 4, wherein a flange device for fixing the cable having the conductor is attached to an end face of the support portion.