JP6682902B2 - Rectifier for towed cables - Google Patents

Description

  The present invention relates to a rectifying device for a tow cable which is mounted on a tow cable for towing a tow vehicle and rectifies the flow of fluid surrounding the tow cable during tow.

  Various techniques have been disclosed regarding a rectifying device for a towed cable (also referred to as a "fairing").

  Patent Document 1 discloses an example of a technique relating to a rectifying device for a towed cable. FIG. 10: is a figure which shows the structure of the fairing of patent document 1. As shown in FIG. Specifically, FIG. 10A is a partial cross-sectional view of the fairing in a state where the tow cable is straight. Further, FIG. 10B is a partial cross-sectional view of the fairing in a state where the tow cable is bent.

  In the fairing 900 of Patent Document 1, the rectifying piece 901 and the cable cover 902 are attached to the towing cable 700 by the attachment 901d. Further, the fixture 901d is connected to the connecting plate 903, and on the tow cable 700, the plurality of rectifying pieces 901 are arranged in a state of being connected to each other. A gap is provided between the tow cable 700 and the cable cover 902, and the rectifying pieces 901 can freely rotate about the central axis of the tow cable 700 in a state of being connected to each other. The connecting plate 903 is provided with an attachment hole 903a for attaching the attachment 901d. Since the mounting hole 903a has a long hole shape, the connecting plate 903 has a degree of freedom of rotation and parallel movement with respect to the mounting tool 901d. As a result of the above configuration, the fairing 900 of Patent Document 1 has the followability of the fairing 900 to the tow cable 700 when the tow cable 700 is bent.

  FIG. 11: is a figure for demonstrating the problem of the fairing of patent document 1. As shown in FIG. Specifically, FIG. 11 is a partial cross-sectional view of the fairing showing the propagation of fluid force during towing. In the fairing 900 of Patent Document 1, since the mounting hole 903a provided in the connecting plate 903 has a long hole shape, the interval between the adjacent straightening pieces 901 is not fixed, and the position of the straightening pieces 901 has a degree of freedom. . For this reason, when the tow cable 700 is unwound downward from the tow boat during tow operation, each of the rectifying pieces 901 sequentially moves to the lower side opposite to the tow direction, and the state shown in FIG. 11 is obtained. This state occurs because a fluid force acts on the fairing 900 during towing, and the component of the fluid force in the axial direction of the towing cable 700 pushes down the fairing 900 toward the downstream direction of the towing flow. . This state occurs even when the specific gravity of the fairing 900 is set to the same level as the surrounding fluid such as seawater to cancel the action of gravity. Then, in the state shown in FIG. 11, the towing cable 700 and the end portion 903b of the connecting plate 903, and the towing cable 700 and the end portion 902a of the cable cover 902 are in contact with each other, and this contact point is transmitted to the rectifying piece. Support a part of. Therefore, frictional resistance is generated between the tow cable 700 and the fairing 900. As a result, the fairing 900 cannot rotate freely around the tow cable 700. The fairing 900 needs to follow the flow without countering the surrounding flow due to towing, but the tracking is incomplete due to frictional resistance, and the rectifying effect is reduced. Therefore, the fairing 900 of Patent Document 1 has a problem that the proper positional relationship between the flow straightening pieces is not maintained during towing.

  Patent Document 2 discloses an example of a technique relating to a rectifying device for a tow cable, which maintains an appropriate positional relationship between the rectifying pieces. The fairing of U.S. Pat. No. 6,037,049 includes a device that is divided into segments (corresponding to "rectifying pieces") that prevent the segments from being frictionally locked into misalignment with each other. The locking prevention device connects adjacent segments with elastic links. The elastic link has a substantially U-shaped shape having round holes at both ends, or a strip-like shape having elongated holes at both ends. Since the adjacent segments are connected to each other by the elastic link, it is possible to prevent the segments from being locked to each other due to friction in an inconsistent state. In particular, when the elastic link has a substantially U-shaped shape having round holes at both ends, even if the connection between adjacent segments is displaced, the displacement is pulled back by the elastic force of the link. Therefore, in the fairing of Patent Document 2, an appropriate positional relationship between the flow control pieces is maintained during towing.

Japanese Patent No. 2726505 Japanese Patent Publication No. Sho 60-5000493

  FIG. 12: is a figure for demonstrating the problem of the fairing of patent document 1. As shown in FIG. Specifically, FIG. 12 is a partial cross-sectional view of the fairing showing the occurrence of stress during winding. The tow cable 700 to which the fairing 900 is attached passes through a pulley and is wound on a drum when being stored in a tow boat. In the air, the fairing 900 is pulled by its own weight and the drag force of the pulley or the drum, and becomes a state as shown in FIG. That is, since the mounting member 901d is located on the outer side of the mounting hole 903a formed in the connecting plate 903, the space between the flow straightening pieces 901 cannot be further expanded. Then, when the towing cable 700 enters the pulley or drum 800, the connecting plate 903 is stressed by being pulled outward due to the difference between the curvature of the surface of the pulley or drum 800 and the curvature of the towing cable 700. Since the connecting plate 903 is often formed using a flexible material such as urethane, there is a high possibility that the connecting plate 903 will be destroyed by stress during repeated use. Therefore, the fairing 900 of Patent Document 1 has a problem that the rectifying device is easily broken during winding.

In the fairing of Patent Document 2, adjacent segments are connected by elastic links. The elastic link has a substantially U-shaped shape having round holes at both ends, or a strip-like shape having elongated holes at both ends. Since adjacent segments are connected to each other by elastic links, deviation from the proper positional relationship between adjacent segments is allowed to some extent. In particular, when the elastic link has a strip-like shape with elongated holes at both ends, there is play in the connection between adjacent segments, so the deviation from the proper positional relationship between adjacent segments is wider. Permissible. However, with an elastic link that has a substantially U-shaped shape with round holes at both ends or a strip shape with elongated holes at both ends, large deviations in the positional relationship between adjacent segments during winding can be tolerated. Is difficult to do. Therefore, the fairing of Patent Document 2 has a problem in that it is difficult to maintain both an appropriate positional relationship between the flow straightening pieces during towing and suppression of breakage of the flow straightening device during winding.
(Purpose of the invention)
The present invention has been made in view of the above problems, and can maintain both an appropriate positional relationship between flow straightening pieces during towing and suppression of breakage of the flow straightening device during winding. The main object of the present invention is to provide a rectifying device for automobiles.

  The towing cable rectifying device of the present invention has a substantially streamlined cross section, and a plurality of rectifying pieces installed on the towing cable and adjacent rectifying pieces when the tension between the adjacent rectifying pieces is less than a threshold value. It is characterized in that it is provided with an elastic component for positioning adjacent pieces of rectifying pieces by elastic force so as not to exceed an elastic limit when the tension is equal to or more than a threshold value.

  According to the present invention, there is an effect that it is possible to maintain both the proper positional relationship between the flow straightening pieces during towing and suppress the breakage of the flow straightening device during winding.

It is a figure which shows an example of a structure of the rectifier for towed cables of the 1st Embodiment of this invention. It is a figure which shows an example of a structure of the rectifier for towed cables of the 1st Embodiment of this invention. It is a figure for demonstrating the towing state of the towing cable rectifier of the 1st Embodiment of this invention. It is a figure for demonstrating the towed state in which the towed cable was bent of the towed cable rectifying device of the first embodiment of the present invention. It is a figure for demonstrating the winding state in which the towing cable was wound around the pulley or the drum of the towing cable rectifying device of the first embodiment of the present invention. It is a figure which shows an example of a structure of the 2nd Embodiment of this invention. It is a figure which shows an example of a structure of the 2nd Embodiment of this invention. It is a figure which shows an example of a structure of the 3rd Embodiment of this invention. It is a figure which shows an example of a structure of the 3rd Embodiment of this invention. It is a figure which shows the structure of the fairing of patent document 1. It is a figure for demonstrating the problem of the fairing of patent document 1. It is a figure for demonstrating the problem of the fairing of patent document 1.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In all the drawings, the same constituents will be given the same reference numeral, and the description thereof will not be repeated.
(First embodiment)
The configuration of this embodiment will be described.

  1 and 2 are diagrams showing an example of the configuration of a towed cable rectifying device 100 according to a first embodiment of the present invention. Specifically, FIG. 1 is an exploded view of the towing cable rectifying device 100, and FIG. 2 is a partial cross-sectional view showing the arrangement of components of the towing cable rectifying device 100 to which rectifying pieces are connected.

  The towing cable rectifying device 100 of the present embodiment includes a rectifying piece 101, a cable cover 102, a mounting pin 104, and an elastic component 120. The towing cable rectifying device 100 may further include a connecting plate 103.

  The rectifying piece 101 has a substantially rectangular cross section in a direction parallel to the axis of the tow cable 700, and a substantially hull-shaped cross section in a direction perpendicular to the axis of the tow cable 700. Further, the rectifying piece 101 has one hole on each of the left and right sides through which the mounting pin 104 penetrates. When the towing cable rectifying device 100 includes the connecting plate 103, the rectifying piece 101 has one connecting plate housing portion 101a on each of the left and right sides. One connecting plate storage portion 101a is a groove that can store either the substantially left half or the substantially right half of the rectifying piece 101.

  The cable cover 102 has a substantially rectangular shape when viewed from a direction parallel to the axis of the tow cable 700, and has a substantially U-shaped cross section in a direction perpendicular to the axis of the tow cable 700. Further, the cable cover 102 has one hole on each of the left and right sides through which the mounting pin 104 penetrates.

  When the cable cover 102 and the rectifying piece 101 are fitted to each other, the cross section of the tow cable 700 in a direction perpendicular to the axis forms a substantially streamlined shape. Further, the cable cover 102 and the rectifying piece 101 are fitted with each other to form a hole through which the tow cable 700 can pass.

  The mounting pin 104 has a columnar shape and has a retaining mechanism. The retaining mechanism is, for example, a head for expanding the diameter of the pin, a screw on the nut and the pin, a female screw on the hole and a screw on the pin, a C-ring and a groove on the pin. The mounting pin 104 fixes the rectifying piece 101, the cable cover 102, and the elastic component 120 to each other. When the towing cable rectifying device 100 includes the connecting plate 103, the mounting pin 104 pierces through the elongated hole 103a provided in the connecting plate 103 to movably connect the adjacent rectifying pieces 101 to each other. To do.

  The elastic component 120 elastically connects the adjacent rectifying pieces 101 to each other. The elastic component 120 includes one joint ball 105 and a wire 107, and two joint frames 106, springs 108, and fasteners 109.

  The joint ball 105 is arranged between the adjacent flow regulating pieces 101 in the assembled state. The joint ball 105 has a through hole at the center.

  The wire 107 penetrates the through hole of the joint ball 105. The wire 107 penetrates the ball receiving hole 106 a of the joint frame 106 and further penetrates the spring 108. The ends of the wires 107 are connected to the ends of the springs 108 by the fasteners 109.

  The joint frame 106 has a hole through which the mounting pin 104 penetrates and a ball receiving hole 106a. The ball receiving hole 106 a is a countersink having a smaller diameter than the joint ball 105. The ball receiving hole 106a slides while keeping the contact with the joint ball 105 in a state where the joint ball 105 is semi-submerged in the ball receiving hole 106a, and the joint ball 105 can smoothly rotate in the ball receiving hole 106a.

  The spring 108 is a compression coil spring. In the assembled state, the length of the wire 107 and the position of the stopper 109 are set so that the spring 108 is compressed more than its free length. Therefore, the joint frame 106 is pressed against the joint ball 105 from both sides. That is, the adjacent rectifying pieces 101 are connected to each other in a state of being in contact with each other via the joint ball 105. Note that the spring 108 only needs to apply tension to the wire 107 and is not limited to a compression spring (pushing spring) or a coil spring. For example, the spring 108 may be a tension spring (pull spring), a leaf spring, an air spring, a liquid spring, or the like depending on the structure of the joint frame 106, the arrangement with respect to the joint frame 106, the length of the wire 107, and the like. It may be.

  The connecting plate 103 is a substantially rectangular plate. The connecting plate 103 limits the positional relationship between the adjacent flow straightening pieces 101 within a predetermined range. The connecting plate 103 has one long hole 103a on each of the left and right sides. The wire 107 penetrates the joint ball 105 without being fixed. Therefore, the adjacent straightening pieces can move within the play range of the connecting plate 103 (mainly left and right in FIG. 2). However, the connecting plate 103 limits the movement or bending of the adjacent straightening pieces 101 in FIG. Specifically, only within the range of the clearance (play) between the connecting plate 103 and the connecting plate housing portion 101a and the clearance between the elongated hole 103a and the mounting pin 104, the adjacent rectifying pieces 101 face each other. It can be changed and moved. Since the elastic component 120 has a function of elastically connecting the adjacent rectifying pieces 101, the connecting plate 103 is not an essential element of the towing cable rectifying device 100.

  The operation of this embodiment will be described.

  FIG. 3 is a diagram for explaining a towed state of the towed cable rectifying device according to the first embodiment of the present invention.

  In the towed state, as described above, the component force toward the lower side opposite to the towed direction due to the fluid force acts on the rectifying piece 101 of the tow cable rectifying device 100. However, when the component force is smaller than the elastic force of the spring 108, the adjacent rectifying pieces 101 continue to maintain the contact state via the joint ball 105. Note that the elasticity of the spring 108, the length of the wire 107, and the like are set so that the component force is smaller than the elastic force of the spring 108 in a normal towing state.

  Therefore, the adjacent rectifying pieces 101 rotate around the joint ball 105 around the substantially axial direction of the towing cable 700 (the lower side opposite to the towing direction) along the fluid flow, and the towing cable 700 bends. Bends along. That is, since the rectifying piece 101 is kept in contact with the joint ball 105, the positional relationship between the adjacent rectifying pieces 101 is limited to the vicinity of an appropriate position. In addition, between the adjacent rectifying pieces 101, it is possible to rotate or bend within a range in which the constituent elements of the towing cable rectifying device 100 do not interfere with each other. However, when the towing cable rectifying device 100 includes the connecting plate 103, the rotation and bending between the adjacent rectifying pieces 101 are limited at the position where the connecting plate 103 and the inner wall of the connecting plate housing 101a are in contact with each other. It Therefore, the shape and the like of the connecting plate 103 and the connecting plate storing portion 101a are set so that the force applied to the constituent elements of the towing cable rectifying device 100 does not destroy the constituent elements in the normal towing and winding states. .

  As a result of the above operation, the occurrence of an event in which the tow cable 700 and the cable cover 102 or the tow cable 700 and the connecting plate 103 come into contact with each other during towing is suppressed, and the rectifying piece 101 is free to move around the axis of the tow cable 700. Rotate to.

  FIG. 4 is a diagram for explaining a towing state in which the towing cable is bent in the towing cable rectifying device according to the first embodiment of the present invention.

  When the towing cable 700 is bent as shown in FIG. 4 during towing, each rectifying piece 101 bends so as to follow the towing cable 700 with the joint ball 105 as a joint. At this time, the mounting pins 104 of the adjacent flow straightening pieces 101 move around the joint ball 105 in a direction in which the mutual distance is increased. When the towed-air rectifying device 100 includes the connecting plate 103, the mounting pin 104 is connected to the connecting plate 103 through the long holes 103a. Move in the width direction of 101. Therefore, excessive stress is not applied to the connecting plate 103.

  FIG. 5: is a figure for demonstrating the winding state in which the towing cable was wound around the pulley or the drum of the towing cable rectifying device of the 1st Embodiment of this invention.

  When the tow cable 700 is bent in a fluid, the tow cable rectifier 100 is basically in the state shown in FIG. However, when the towing cable 700 is bent in the air along the curved surface of the pulley or the drum 800, the adjacent flow straightening pieces 101 are pulled with a larger force in the directions away from each other around the point 810 on the curved surface. . In this case, when the spring 108, which applies a force to press the joint ball 105, is further compressed and the tensile force on the elastic component 120 exceeds a predetermined threshold value, the joint ball 105 between the adjacent flow regulating pieces 101 is interposed. Release the contact. As a result, the elastic component 120 absorbs the stress on the rectifying piece 101. The threshold value is predetermined so that the component force of the fluid force downward in the cable axis is smaller than the elastic force of the spring 108 in the normal towing state, and the component force is larger than the elastic force of the spring 108 in the winding state. It Then, the elasticity of the spring 108, the length of the wire 107, and the like are set so that the determined threshold value is realized. When the towed cable rectifying device 100 includes the connecting plate 103, the position of the mounting pin 104 in the elongated hole 103a of the connecting plate 103 can be further moved than in the state shown in FIG. 4 or 5. . However, if the width of the elongated hole 103a is sufficiently secured, the stress in the connecting plate 103 hardly occurs.

  As described above, in the towing cable rectifying device 100 of the present embodiment, when the tension between the adjacent rectifying pieces 101 is less than the predetermined threshold value during towing, the elastic component 120 causes the adjacent rectifying piece 101 to move. Position each other. On the other hand, at the time of winding, when the tension between the adjacent straightening pieces 101 is equal to or more than the predetermined threshold value, the elastic component 120 releases the proper positioning between the adjacent straightening pieces 101, and the straightening device for the towed cable. Suppress 100 destruction. Therefore, the towing cable rectifying device 100 of the present embodiment has an effect that both the proper positional relationship between the rectifying pieces during towing and the suppression of breakage of the rectifying device during winding can be achieved. is there.

In addition, in the towed cable rectifying device 100 of the present embodiment, the configuration of the elastic component 120 is not limited to the above configuration. When the tension between the adjacent rectifying pieces 101 is less than a predetermined threshold value, the elastic component 120 positions the adjacent rectifying pieces 101 to each other, and when the tension between the adjacent rectifying pieces 101 is the predetermined threshold value or more. Need only have a configuration for canceling the proper positioning between the adjacent rectifying pieces 101.
(Second embodiment)
Next, a towing cable rectifying device of the second embodiment of the present invention, which is based on the towing cable rectifying device 100 of the first embodiment of the present invention described above, will be described. In the towing cable rectifying device of the present embodiment, the elastic component 120 is changed to another elastic component in the towing cable rectifying device 100 of the first embodiment.

  The configuration of this embodiment will be described.

  FIG. 6 and FIG. 7 are views showing an example of the configuration of the towed cable rectifying device 200 according to the second embodiment of the present invention. Specifically, FIG. 6 is an exploded view of the towing cable rectifying device 200, and FIG. 7 is a partial cross-sectional view showing the arrangement of the components of the towing cable rectifying device 200 to which rectifying pieces are connected. Note that, in FIG. 6, the tension spring 211 is drawn so as to occupy most of the elongated hole 210a, but in reality, there is sufficient clearance on the left and right.

  The towed cable rectifying device 200 of the present embodiment includes a rectifying piece 101, a cable cover 102, a mounting pin 104, and an elastic component 220.

  The elastic component 220 includes a connecting plate 210 and a tension spring 211.

  The connecting plate 210 has an elongated hole 210a, and a tension spring 211 is arranged in the elongated hole 210a. The long hole 210a has a length sufficient for the tension spring 211 to be elastically pulled.

  The tension spring 211 is a tension coil spring. The tension spring 211 has annular hooks at both ends. In the assembled state, the mounting pins 104 penetrate the hooks on both ends of the tension spring 211.

  The connecting plate 210 has protrusions 210b on both sides of the elongated holes 210a. The protrusion 210b has a columnar shape such as a square pole or a column. In the assembled state, the protrusion 210b makes smooth contact with the left end or the right end of the cable cover 102 or the rectifying piece 101 of the adjacent rectifying piece 101. When the protrusion 210b is in contact with the cable cover 102 or the left end or the right end of the rectifying piece 101, a predetermined tension is generated in the tension spring 211.

  Other configurations in the present embodiment are the same as the configurations in the first embodiment.

  The operation of this embodiment will be described.

  When the towing cable 700 is bent during towing, if the tension of the adjacent flow straightening pieces 101 is equal to or lower than a predetermined tension, the elastic component 220 maintains the contact between the adjacent flow straightening pieces 101 via the protrusion 210b. To do. As a result, the angle between the adjacent straightening pieces 101 fluctuates with the protrusion 210b as a fulcrum, so that the positional relationship between the adjacent straightening pieces 101 is suppressed to a range suitable for towing.

  When the tow cable 700 is bent during winding and the tension of the adjacent straightening pieces 101 exceeds a predetermined tension, the elastic component 220 releases the contact between the adjacent straightening pieces 101 via the protrusion 210b. . As a result, the positional relationship between the adjacent straightening pieces 101 is in a range suitable for winding. At this time, since the connection between the adjacent rectifying pieces 101 is elastic, the elastic component 220 absorbs the stress on the rectifying piece 101.

  That is, in this embodiment, the protrusion 210b provides the same function as the joint ball 105 of the first embodiment, and the tension spring 211 provides the same function as the spring 108 of the first embodiment.

  Other operations in this embodiment are the same as the operations in the first embodiment.

  As described above, in the towing cable rectifying device 200 of the present embodiment, when the tension between the adjacent rectifying pieces 101 is less than the predetermined threshold value during towing, the elastic component 220 causes the adjacent rectifying piece 101 to move. Position each other. On the other hand, at the time of winding, when the tension between the adjacent straightening pieces 101 is equal to or more than the predetermined threshold value, the elastic component 220 releases the proper positioning between the adjacent straightening pieces 101, and the straightening device for the towed cable. Suppress the destruction of 200. Therefore, the towing cable rectifying device 200 of the present embodiment has an effect that both the proper positional relationship between the rectifying pieces during towing and the suppression of breakage of the rectifying device during winding can be achieved. is there.

  The tension spring 211 of the towing cable rectifying device 200 of the present embodiment is not limited to a coil spring as long as it applies tension between the adjacent rectifying pieces 101. For example, the tension spring 211 may be a leaf spring, an air spring, a liquid spring, or the like.

  In addition, in the above description, the protrusion 210b has a columnar shape and is described as an example formed on the lower side of the elongated holes 210a on both sides of the connecting plate 210. However, the protrusion 210b in the present embodiment is not limited to this. Not limited. The protrusion 210b in the present embodiment may have an arbitrary shape and may be formed at an arbitrary position such that adjacent rectifying pieces 101 smoothly contact each other with the protrusion 210b as a fulcrum during towing.

Further, the connecting plate 210 of the towing cable rectifying device 200 of the present embodiment may be formed independently of the elastic component 220. In this case, the connecting plate 210 of the towing cable rectifying device 200 is the same as the connecting plate 103 of the first embodiment of the present invention. In addition, the protrusions 210 b are installed on the lower portions of both sides of the connecting plate 103. The tension spring 211 is installed below the connecting plate 103. The tension spring 211 is connected to the rectifying piece 101 or the cable cover 102 by means other than the attachment pin 104 (for example, another attachment pin and hole).
(Third Embodiment)
Next, a towing cable rectifying device according to a third embodiment of the present invention, which is based on the towing cable rectifying device 100 according to the first embodiment of the present invention, will be described. In the towing cable rectifying device of the present embodiment, the elastic component 120 is changed to another elastic component in the towing cable rectifying device 100 of the first embodiment.

  The configuration of this embodiment will be described.

  8 and 9 are views showing an example of the configuration of a towed cable rectifying device 300 according to the third embodiment of the present invention. Specifically, FIG. 8 is an exploded assembly view of the towed cable rectifying device 300, and FIG. 9 is a partial cross-sectional view showing an arrangement of components of the towed cable rectifying device 300 to which rectifying pieces are connected.

  The towing cable rectifying device 300 of the present embodiment includes a rectifying piece 101, a cable cover 102, a mounting pin 104, and an elastic component 320.

  The elastic component 320 is integral with the connecting plate 312.

  The connecting plate 312 is a substantially rectangular elastic plate. The connecting plate 312 has two round holes 312a on the lower side of the surface. In the assembled state, the mounting pin 104 penetrates the round hole 312a.

  The connecting plate 312 has a substantially triangular notch 312b for relieving compressive stress on the upper side and a notch 312c for relieving tensile stress on the lower side.

  Other configurations in the present embodiment are the same as the configurations in the first embodiment.

  The operation of this embodiment will be described.

  When the towing cable 700 is bent (convex downward in FIG. 9) during towing, and the tension on the lower side of the adjacent rectifying piece 101 is equal to or less than the predetermined tension, the elastic component 320 reduces the notch 312b. By enlarging the notch 312c, an increase in the angle between the adjacent straightening pieces 101 is suppressed.

  Further, when the towing cable 700 is bent (convex upward in FIG. 9) during towing, if the pressure on the lower side of the adjacent rectifying piece 101 is less than or equal to a predetermined pressure, the elastic component 320 causes the notch 312b to be formed. By enlarging and reducing the notch 312c, an increase in the angle between the adjacent straightening pieces 101 is suppressed.

  On the other hand, when the towing cable 700 is bent (convexed downward in FIG. 9) during winding, and the tension of the adjacent rectifying piece 101 exceeds a predetermined tension, the elastic component 320 causes the width of the notch 312b to increase. By reaching 0, a further increase in the angle between the adjacent flow straightening pieces 101 is suppressed.

  Further, when the pressure of the adjacent flow straightening piece 101 exceeds a predetermined pressure when the towing cable 700 is bent (convexed upward in FIG. 9) during winding, the elastic component 320 causes the width of the notch 312c to increase. By reaching 0, a further increase in the angle between the adjacent flow straightening pieces 101 is suppressed.

  Other operations in this embodiment are the same as the operations in the first embodiment.

  As described above, in the towing cable rectifying device 300 of the present embodiment, when the tension between the adjacent rectifying pieces 101 is less than the predetermined threshold value during towing, the elastic component 320 causes the adjacent rectifying piece 101 to move. Position each other. On the other hand, at the time of winding, when the tension between the adjacent straightening pieces 101 is equal to or larger than the predetermined threshold value, the elastic component 320 stops the proper positioning between the adjacent straightening pieces 101, and the straightening cable straightening device. Suppress the destruction of 300. Therefore, the towing cable rectifying device 300 of the present embodiment has an effect that both the proper positional relationship between the rectifying pieces at the time of towing can be maintained and the destruction of the rectifying device at the time of winding can be suppressed. is there.

  The present invention has been exemplarily described above by the above-described embodiment and its examples. However, the technical scope of the present invention is not limited to the scope described in the above-described embodiments and examples thereof. It is obvious to those skilled in the art that various modifications and improvements can be added to the embodiment. In such a case, new embodiments with such changes or improvements may be included in the technical scope of the present invention. This is apparent from the matters described in the claims.

  INDUSTRIAL APPLICABILITY The present invention is based on the interaction between a fluid and a cable in a sonar, a sensor, a navigation body, an air vehicle, etc., which is connected to another moving body by a cable in a fluid such as water, seawater, air, or a solvent. It can be used for the purpose of suppressing the occurrence of kiting, resistance, vibration, noise and the like.

100 towing cable rectifier 101 rectifying piece 101a connecting plate housing 102 cable cover 103 connecting plate 103a elongated hole 104 mounting pin 105 joint ball 106 joint frame 106a ball receiving hole 107 wire 108 spring 109 fastening bracket 120 elastic component 200 for towing cable Rectifier 210 Connection plate 210a Long hole 210b Protrusion 211 Extension spring 220 Elastic component 300 Towing cable rectifier 312 Connection plate 312a Round hole 312b Notch 312c Notch 320 Elastic component 700 Towing cable 800 Drum 900 Fairing 901d Rectifier piece 90 Tool 902 Cable cover 902a End 903 Connecting plate 903a Mounting hole 903b End

Claims (4)

Having a streamlined cross section, a plurality of rectifying pieces installed on the tow cable,
When the tension between the adjacent rectifying pieces is less than a threshold value, the adjacent rectifying pieces are positioned to each other, and when the tension is equal to or more than the threshold value, the adjacent rectifying pieces are adjacent to each other so as not to exceed the elastic limit. An elastic component that connects the rectifying pieces with elastic force
Equipped with
The elastic component is a sphere, a mounting portion provided on each one of the adjacent rectifying pieces and having a pair of countersinks capable of smoothly contacting the sphere from both sides, and a wire penetrating the sphere, A pair of springs for pulling the wire,
If the tension of the adjacent rectifying pieces is less than the threshold value, the countersunk contact each other through the balls, when the tension is greater than or equal to the threshold value, it said contacting Ru is released
For example for brewing Kou cable rectifier. Having a streamlined cross section, a plurality of rectifying pieces installed on the tow cable,
When the tension between the adjacent rectifying pieces is less than a threshold value, the adjacent rectifying pieces are positioned to each other, and when the tension is equal to or more than the threshold value, the adjacent rectifying pieces are adjacent to each other so as not to exceed the elastic limit. An elastic component that connects the rectifying pieces with elastic force
Equipped with
The elastic component has a protrusion installed in a gap between the adjacent flow straightening pieces and capable of smoothly contacting each of the adjacent flow straightening pieces, and a spring having one end fixed to each of the adjacent flow straightening pieces. ,
When the tension between the adjacent rectifying pieces is less than a threshold value, the adjacent rectifying pieces are brought into contact with each other via the protrusions, and when the tension is equal to or more than the threshold value, the contact is released. Ru
For example for brewing Kou cable rectifier. Having a streamlined cross section, a plurality of rectifying pieces installed on the tow cable,
When the tension between the adjacent rectifying pieces is less than a threshold value, the adjacent rectifying pieces are positioned to each other, and when the tension is equal to or more than the threshold value, the adjacent rectifying pieces are adjacent to each other so as not to exceed the elastic limit. An elastic component that connects the rectifying pieces with elastic force
Equipped with
The elastic component is a substantially rectangular elastic plate having a pair of opposing substantially triangular notches on the upper side and the lower side, and the left side and the right side being fixed to one of the adjacent rectifying pieces,
When the tension on the lower side of the elastic component between the adjacent rectifying pieces is less than the threshold value, the elastic force that deforms so that the widths of the upper and lower cutouts change and opposes the tension. Occurs, and the tension is equal to or more than the threshold value, the width of the upper notch reaches 0,
Prevents further deformation due to the tension,
When the tension on the upper side of the elastic component between the adjacent rectifying pieces is less than the threshold value, the elastic force that deforms so that the widths of the upper and lower cutouts change and opposes the tension. the generated, when the tension is greater than or equal to the threshold value, the lower the notch width reaches 0, suppress further deformation due to the tension
For example for brewing Kou cable rectifier. Further provided is a substantially rectangular connecting plate that connects the adjacent rectifying pieces so as to limit the positional relationship between the adjacent rectifying pieces within a predetermined range.
The towing cable rectifier according to any one of claims 1 to 3.