JP6005203B1 - Cable suspension belt - Google Patents

Abstract

The present invention provides a cable suspension belt that can safely adjust the position of each cable even in a suspended state in which a plurality of cables are bundled together. A metal hook portion 5 has a pair of hooks 2, and the pair of hooks 2 are integrally arranged at predetermined intervals by four spacers 4a to 4d. The hook 2 is formed in a substantially C shape, and has a hook-like portion 2a capable of supporting a plurality of cables and a linear base portion 2b extending above the hook-like portion 2a. Moreover, the part by which the base 2b is extended among the bowl-shaped parts 2a becomes the side surface contact part 2c extended substantially horizontally. On the other hand, the sling portion 6 includes a nylon belt 6a and a D-shaped engagement ring 6b. One end of the belt 6 a is attached to the spacer 4 a of the hook portion 5. An insertion hole 5a is formed between the spacers 4a and 4b of the hook portion 5 so that the engagement ring 6b can pass therethrough. [Selection] Figure 1

Description

  The present invention relates to a cable suspension belt for lifting a cable in the construction of an overhead electric wire.

  Today, uninterruptible construction by the indirect method is the mainstream. In this uninterruptible work, temporary power transmission is performed by bypassing the work section with a work cable, and work is performed at the ground potential without imposing a burden on the consumer. In order to connect this construction cable to a construction switch or the like, it is necessary to lift it to a high place (above the utility pole). In order to lift a construction cable such as a high-voltage underline above a utility pole, a dedicated lifting tool has been conventionally used.

  FIG. 7 shows an example of a conventional cable lifting tool. The cable lifting tool 100 in FIG. 7 is formed of a deformable linear body such as a tail rope. It has a cable connecting portion 101 formed in a ring shape, and a first branch portion 102 and a second branch portion 103 extending from the cable connecting portion 101, and the first branch portion 102 has a string-like body for lifting the cable. An annular connecting body 104 for penetrating and connecting is attached. A connecting body 105 for connecting and fixing to the fixing member is attached to the second branch portion 103. A cable is connected to the cable connecting portion 101, and this is lifted via the annular connecting member 104, and the connecting member 105 is connected and fixed to a fixed object provided on a utility pole or the like. During the work, the cable is held by the connecting body 105. Such a cable lifting tool 100 is described in Patent Document 1.

  However, for example, in a three-phase three-wire power transmission method, it is more efficient to handle three cables together. An example of a binding band capable of lifting such three cables together is shown in FIG. FIG. 8 shows a state in which three cables 50, 51, and 52 are bound together by a binding band 200, where (a) is a front view and (b) is a side sectional view. As shown in FIG. 8, when winding the binding band 200 in a bundle of three cables 50, 51, 52, the winding start end 201 a in the main winding part 201 is connected between the cables 50, 51, or the cables 51, 52. Start wrapping while sandwiched between them. Thereby, each cable 50, 51, 52 is firmly bound, and is stably held against the tension generated in the longitudinal direction.

  Such a binding band 200 is described in Patent Document 2 as a configuration related to a cable erection method.

JP 2008-295168 A JP 2005-184935 A

  However, after the three cables 50, 51, 52 are lifted above the utility pole using the binding band 200 as shown in FIG. 8, each cable 50, 51, 52 is to be connected to a construction switch or the like. In some cases, length adjustment may be required. However, it is dangerous to loosen the binding band 200 in a bundled state at a high place.

  For this reason, after adjusting the length at a safe height, it must be lifted again, resulting in a reduction in work efficiency.

  Accordingly, an object of the present invention is to provide a cable suspension belt that can safely adjust the position of each cable even in a suspended state in which a plurality of cables are bundled.

  In order to achieve the above object, the cable suspension belt of the present invention connects a pair of hooks having a hook-like portion and a base portion capable of supporting a cable, and the hooks integrally connected with a predetermined interval in a substantially horizontal direction. In order to form an insertion hole through which the free end side of the belt can be inserted between the first interval holding portion, the belt having one end attached to the first interval holding portion, and the first interval holding portion, And a second interval holding portion provided on the distal end side of the base portion.

  In the cable suspension belt of the present invention, in addition to the above-mentioned configuration, the pair of hooks are formed with side contact portions that can contact the side surfaces of the cable toward the inside of the hook-shaped portion. It is characterized by.

  In addition to the above configuration, the cable suspension belt of the present invention is characterized in that a third interval holding portion for connecting the hooks is provided between the side surface contact portions.

  As described above, according to the present invention, the free end side of the belt whose one end is attached to the first interval holding portion is wound around the cable supported by the hook-like portion from the lower side to the insertion hole side. When the cable is pulled out, the cable is lifted from the hook-shaped portion, and is tightened by the belt and the portion of the pair of hooks between the first interval holding portion and the second interval holding portion. When the free end side of the belt is lifted in this tightened state, the cable can be lifted with the second interval holding portion positioned higher than the first interval holding portion.

  Further, when the pair of hooks are lifted in the state where the cable is lifted, the first gap holding portion moves to the free end side of the belt, so that the belt and the pair of hooks are loosely wound. This makes it possible to easily correct the position of the cable in the longitudinal direction.

  Further, according to the present invention, in addition to the above-described effect, when the free end side of the belt is wound from the lower side around the cable supported by the hook-shaped portion and pulled out to the insertion hole side, the cable is hooked by the belt. Lift from the shape. However, since the side surface comes into contact with the side surface abutting portion that protrudes inward from the hook-shaped portion before approaching the distal end side of the base portion, the cable lifted from the hook-shaped portion is wound by the side surface contacting portion and the belt. . As a result, the tightening state can be formed with a small lifting amount, so that the working efficiency is improved.

  Further, according to the present invention, in addition to the above effect, the upper side surface of the cable lifted by the belt abuts on the third interval holding portion provided between the two side abutment portions. Can be prevented from being bent. This can prevent the cable from being damaged.

1 is an overall front perspective view of a cable suspension belt according to an embodiment of the present invention. It is a back side whole perspective view of the cable suspension belt which concerns on embodiment of this invention. In the cable suspension belt of FIG. 1, it is the figure which showed the support state of the cable by a hook part. In the cable suspension belt of FIG. 1, it is the figure which showed the support state of the cable by a sling part. FIG. 5 is a side view of the state of FIG. 4, (a) shows a state when the belt is wound around the cable, and (b) shows a state where the cable is wound by the belt. FIGS. 2A and 2B show an operation of the cable suspension belt of FIG. 1, in which FIG. 1A shows a lifted state by a sling portion, and FIG. 2B shows a lifted state by a hook portion. It is the figure which showed the conventional cable hanging tool. It is the figure which showed the binding state of the cable by the conventional binding band.

  Hereinafter, a cable suspension belt according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall perspective view of the cable suspension belt 1 as seen from the front side. FIG. 2 is an overall perspective view of the cable suspension belt 1 as seen from the back side. The schematic configuration of the cable suspension belt 1 will be described with reference to FIGS.

  Referring to FIG. 1, a cable suspension belt 1 according to the present embodiment includes a hook portion 5 formed of a metal member and a sling portion 6 using a nylon belt. The hook portion 5 has a pair of hooks 2. The pair of hooks 2 are integrally connected by four spacers 4a to 4d (see FIG. 2 for the spacer 4d). These four spacers 4a to 4d are all the same length and are arranged in parallel to each other.

  The hook 2 has a substantially C-shaped flange-shaped portion 2a that opens to the side, and a linear base portion 2b that extends upward from the flange-shaped portion 2a. In the present embodiment, for convenience of explanation, a portion of the bowl-shaped portion 2a where the base portion 2b is extended and the upper portion extending in a substantially horizontal direction is referred to as a side contact portion 2c. . The operation of the side contact portion 2c will be described later. Among the four spacers 4a to 4d described above, the spacer 4a (first interval holding portion) and the spacer 4c (third interval holding portion) are arranged side by side on the side contact portion 2c. .

  On the other hand, the sling portion 6 includes a belt 6a and a substantially D-shaped engagement ring 6b. One end of a belt 6a is attached to the spacer 4a extending from the side contact portion 2c.

  As shown in FIG. 2, a spacer 4d is provided at the lowest position on the back side of the bowl-shaped portion 2a. In FIG. 2, the belt 6a is in a suspended state so as to pass through the inside of the hook-shaped portion 2a rather than the spacer 4d. The above-described D-shaped engagement ring 6b is provided on the free end side of the suspended belt 6a. In this way, the belt 6a is disposed inside the flanged portion 2a with respect to the spacer 4d, and further, there is no obstacle such as a spacer provided below the spacer 4d. It can be freely moved inside the portion 2a.

  Next, the use state of the cable suspension belt 1 of FIG. 1 is demonstrated using FIG.3 and FIG.4. FIG. 3 shows a state in which three cables 50 are supported on the hook-shaped portion 2 a of the hook 2 constituting the hook portion 5. In the hook portion 5 according to the present embodiment, a configuration having a hook-like portion 2a having a size capable of accommodating a cable 50 (200A cable, 300A cable, etc.) is shown as an example. Since the hook-shaped part 2a is formed with an opening on the side, the cables 50 can be easily accommodated from the side on the ground before being lifted to a high place. In this way, first, the cables 50 to be lifted are temporarily collected.

FIG. 4 shows a state in which the belt 6a is wound from the lower side of the cable 50 and the whole is lifted by the engaging ring 6b that rotates upward. The engaging ring 6b rotated upward is composed of a spacer 4a (first interval holding portion) and a spacer 4b (second interval holding portion) and a pair of hooks 2.
The inside of the insertion hole 5a (see FIG. 2) surrounded by is passed from below. The belt 6a passed through the insertion hole 5a stably supports the hook portion 5 and the cable 50 while being bent by the spacer 4b.

  Here, for convenience of explanation, illustration of a lifting tool or device is omitted, but as shown in FIG. 4, a winch engagement member or the like is engaged with an engagement ring 6b lifted upward. Are connected and can be lifted to a high place such as a utility pole.

  Subsequently, the winding state of the cable 50 by the sling portion 6 will be described in detail with reference to FIG. FIG. 5 shows a side view of the state of FIG.

  FIG. 5A shows a state in which the belt 6a is wound around the three cables 50 temporarily gathered in the hook-shaped portion 2a. As described above, the belt 6a is disposed so as to hang down inside the hook-shaped portion 2a with respect to the spacer 4d provided at the lowermost stage. For this reason, there is no obstructing member between the cable 50 and the belt 6a is rotated from the lower side to the free end side engagement ring 6b (see FIG. 1) along the direction indicated by the arrow. The three cables 50 can be easily tightened so as to be bundled. Above the hook portion 5, the engagement ring 6b of the belt 6a is passed through an insertion hole 5a (see FIG. 2) formed between the spacer 4a and the spacer 4b and lifted.

  FIG. 5B shows a state in which the hook portion 5 and the cable 50 are lifted by the engagement ring 6b (see FIG. 1). When the engagement ring 6b is lifted upward, the weight of the cable 50 is added to the belt 6a. Here, since one end of the belt 6a is attached to the spacer 4a of the hook portion 5, a part of the weight of the cable 50 is carried by the spacer 4a. However, the spacer 4a has a lifting device such as a winch ( (Not shown) are not directly connected. For this reason, the spacer 4b on the side close to the engagement ring 6b is lifted, and the spacer 4a is stabilized at a position lower than the spacer 4b. In this state, the upper side surface of the cable 50 is in contact with the side surface contact portion 2c of the bowl-shaped portion 2a.

  That is, in the state shown in FIG. 5B, the hook portion 5 is used for lifting the side contact portion 2c, which is a part of the hook portion 5, by the belt 6a. It is not supported.

  Each of the three cables 50 lifted in this way is connected to a construction switch or the like on a utility pole, for example. However, there is a case where it is necessary to correct the position of the cable 50 in the length direction at a high place such as on a utility pole.

  Next, a process for correcting the position of the cable 50 in such a case will be described with reference to FIG. 6A and 6B show the operation when the cable suspension belt 1 of FIG. 1 is used. FIG. 6A shows a lifting state by the sling portion 6, and FIG. 6B shows a lifting state by the hook portion 5. FIG.

  In the state of FIG. 6A, since the three cables 50 are lifted by the belt 6a of the sling portion 6, a gap is formed between the cable 50 and the lower side of the hook portion 5 (see FIG. 6). 5 (b)). Since the width of the belt 6a of the sling portion 6 is narrower than the distance between the pair of hooks 2 of the hook portion 5, the bending of the cable is slightly larger than the state in which the belt 6a is supported by the hook portion 5.

Further, since the belt 6a of the sling portion 6 according to the present embodiment is made of a nylon material, it is deformed along the curved cable 50, and the lower side is the upper side as shown in FIG. 6 (a). It has a convex shape.

  As described above, in the lifted state, the cable 50 is wound and closely adhered between the belt 6a and the side contact portion 2c (the hook-shaped portion 2a), so that the cable 50 can resist the tension acting in the longitudinal direction of the cable 50. Sufficient frictional force can be obtained and the cable 50 can be stably held.

  In the present embodiment, since the spacer 4c is also provided at the crossing position (side contact portion 2c) between the bowl-shaped portion 2a and the base portion 2b, the cable 50 that curves upward is curved. It can be regulated above. Thus, according to the cable suspension belt 1, since excessive bending of the cable 50 is suppressed, it is difficult for the cable 50 to be wrinkled, and damage can be prevented.

  FIG. 6B shows a state in which the hook portion 5 is pushed upward while the engagement ring 6b of the sling portion 6 is kept lifted by a lifting device (not shown) such as a winch. Yes. Since the pair of hooks 2 of the hook portion 5 are formed at a predetermined interval exceeding at least the width of the belt 6a, when the hook portion 5 is lifted, the bending state of the cable 50 is compared to the case of lifting with the belt 6a. Alleviated.

  Further, since the side contact portion 2c on the upper side of the hook 2 is lifted relatively to the belt 6a, the tightening of the cable 50 by the sling portion 6 is loosened.

  As a result, the frictional force generated in the three cables 50 is released, and the longitudinal position correction is facilitated independently.

  Then, after the position correction is performed in this way, when the force that lifts the hook portion 5 is released, the cable 50 is wound again by the side surface contact portion 2c of the hook-shaped portion 2a and the belt 6a, and is lifted. Is stable.

  As described above, according to the cable suspension belt 1 according to the embodiment of the present invention, the plurality of cables 50 are hooked together on the hook 2 without being finely tightened by a clamp or the like, and in this state, the belt 6a. The winding state is completed only by winding about half a circle. When it is necessary to adjust the position in the longitudinal direction, the tightening state can be released by simply lifting the hook part 5. To return to the tightening state again, force is applied from the lifted hook part 5. Just remove it. As described above, since the winding and releasing can be freely switched by a simple operation, the working efficiency is remarkably improved.

  Further, even in the tightened state, since the frictional force is effectively exerted between the cable 6 such as the belt 6a and the edge of the side contact portion 2c that are in close contact with each other in the curved state, the cable is more than necessary. It is possible to sufficiently withstand the tension generated in the longitudinal direction without tightening 50, and the lifting state can be stably maintained.

  In the above embodiment, the substantially C-shaped hook 2 in which the opening of the hook-shaped portion 2a is located on the side is shown as an example. However, the opening may be located slightly above or above. For example, even if the bowl-shaped part 2a is formed in a U shape or a rectangle, it is possible to obtain substantially the same effect as in the present embodiment.

  Moreover, although the hook 2 in which the opening of the hook-shaped portion 2a is opened is shown as an example, an opening / closing piece that can open and close the opening may be provided. If comprised in this way, the fishing support state of the temporary cable 50 will be stabilized further, and safety will improve.

  Moreover, in the said embodiment, the hook part 5 showed the example comprised by the pair of hook 2 formed in the same shape. However, the hooks 2 may have different shapes or sizes.

  Moreover, in the said embodiment, the side surface contact part 2c which the cable 50 contact | abuts in the case of winding fastening showed the example formed in the linear form extended substantially horizontally. However, it may be gently curved so as to wrap the cable 50. Furthermore, when tightened with a belt, the edge of the side abutting portion 2c gradually becomes narrower upward so that an appropriate frictional force can be obtained between the cables 50. It may be formed in a convex shape.

  Moreover, in the said embodiment, the spacer 4a to which the end of the belt 6a is attached was arrange | positioned in the back | inner side of the collar-shaped part 2a, and the structure by which the opening side was open | released was shown as an example. However, the belt 6a may be disposed so as to close the opening of the bowl-shaped portion 2a. That is, one end of the belt 6a may be attached anywhere as long as the side surface of the cable 50 can be tightened by a part of the hook-shaped portion 2a and the belt 6a.

  Moreover, in the said embodiment, the sling part 6 showed the example comprised by the one belt 6a. However, the same effect can be obtained by combining a plurality of belts having a narrower width than the example shown in the present embodiment.

  Moreover, in the said embodiment, it showed about the structure by which a pair of hook 2 was arrange | positioned in parallel. However, for example, the lower part may be open in a square shape in front view. If comprised in this way, the bending of the cable 50 will become loose | gentle in the lifting state by the hook part 5, and the position adjustment to a longitudinal direction will become still easier.

  Moreover, in the said embodiment, the base 2b of the hook 2 showed as an example the structure extended upward from the approximate center position of the hook-shaped part 2a. However, the base 2b may not be extended to the central position of the hook-shaped portion 2a as long as the position is balanced so that the posture of the hook portion 5 does not change greatly when the belt 6a is lifted.

  Moreover, in the said embodiment, the structure which has the sling part 6 with the substantially constant width | variety of the belt 6a was shown as an example. However, the width of the belt 6a may not be constant.

  Moreover, in the said embodiment, although the belt 6a made from nylon was shown as an example, if it is the structure which has flexibility, you may be comprised with the raw material made from a metal, for example.

  Moreover, in the said embodiment, although the structure to which metal D rings were attached as the engagement ring 6b was shown as an example, another shape may be sufficient. Further, for example, the same member made of nylon may be integrally formed. Moreover, as long as it has a clamp etc. which can clamp the edge part of a belt by the lifting device side, it does not need to have the engagement ring 6b.

  Moreover, in the said embodiment, all the spacers 4a-4d used as a space | interval holding | maintenance part showed the structure where the rod-shaped member was used and each was mutually arrange | positioned in parallel. However, it does not have to be composed of all rod-like members. Moreover, it does not need to be arranged parallel to each other.

  In the above-described embodiment, the end of the belt 6a is folded back so as to be wound around the rod-shaped spacer 4a and is attached so as to be rotatable. However, the belt 6a is crimped so as not to rotate. It may be attached by fixing or the like.

  Moreover, in the said embodiment, the space | interval holding | maintenance part was shown as an example of the structure provided. However, the effect of the present invention can be obtained by providing at least two of the interval holding portion to which one end of the belt can be attached and the interval holding portion that can hold the free end side of the suspended belt in a bent state. It is possible.

  Further, in the above embodiment, the gap between the spacer 4a as the first interval holding portion to which the end portion of the belt 6a is attached and the spacer 4b as the second interval holding portion provided in the base portion 2b. A configuration in which the side contact portion 2c is formed so as to protrude to the inside of the shape portion is shown as an example. However, even when the side surface contact portion 2c is not formed, when the belt 6a is lifted, it is possible to wind the cable 50 between a part of the hook 2 and the belt 6a, When the hook portion 5 is lifted, the tightening force by the belt 6a can be relaxed, and the same effect can be obtained.

  The cable suspension belt of the present invention can be easily bundled and lifted up a plurality of cables, so that it can be used not only for high-voltage 200A cables and 300A cables but also for low-voltage small-diameter cables. This is useful for bypass work and maintenance of service lines, etc., for maintenance of equipment on utility poles.

DESCRIPTION OF SYMBOLS 1 Cable suspension belt 2 Hook 2a Gutter-shaped part 2b Base part 2c Side surface contact part 4a Spacer (1st space | interval holding | maintenance part)
4b Spacer (second interval holding part)
4c Spacer (Third distance holding part)
4d Spacer 5 Hook 5a Insertion hole 6 Sling 6a Belt 6b Engagement ring 50 Cable

Claims (3)

A pair of hooks having a hook and a base capable of supporting a cable; and
A first interval holding unit that integrally connects the hooks with a predetermined interval in a substantially horizontal direction;
A belt having one end attached to the first gap holding portion;
A second interval holding portion provided on the distal end side of the base portion so as to form an insertion hole through which the free end side of the belt can be inserted between the first interval holding portion,
A cable suspension belt characterized by comprising:   2. The cable suspension belt according to claim 1, wherein the pair of hooks are formed with side contact portions that can contact the side surfaces of the cable toward the inside of the hook-shaped portion. .   3. The cable suspension belt according to claim 2, wherein a third space holding portion that connects the hooks is provided between the side surface contact portions.