JP7150284B2 - extra length holder - Google Patents

Description

TECHNICAL FIELD The present invention relates to a surplus length holder that holds a surplus length of a cable such as an optical cable.

Conventionally, when wiring cables such as optical cables along suspension wires installed between supporting objects such as utility poles, the length of the cables should be sufficient in consideration of future line relocation and recovery in the event of a communication failure. is given. This excess length is bundled in a looped state and fixed to a support using a holder or the like.

As such a holder, for example, Patent Literature 1 discloses a cable surplus length supporter in which a cable is wound along an arc-shaped support member and which can be attached to a utility pole via a base attached to the support member. It is

JP 2009-139507 A

However, the extra cable length supporter of Patent Document 1 is attached to a utility pole. When installing a cable excess length support near a utility pole where many wires are densely packed, it is necessary to consider the contact with other wires and the route to climb the pole, which may affect workability.

Further, when attaching the attachment means of the cable surplus length support of Patent Document 1 to the utility pole, other members such as a cross arm are required. Therefore, when starting work, it is necessary to first fix the cross arm to the utility pole and then fix the excess cable length support. Costs are also incurred due to an increase in labor and the number of parts. In addition, there is a problem that such attachment means have low versatility.

Furthermore, the cable excess length supporter of Patent Document 1 is in a state in which the approximately half-circumference portion of the wound cable is not supported. Cables come in a variety of thicknesses, but thin, stiff cables tend to break when force is applied. When a thin and stiff cable is applied to the excess cable length support of Patent Document 1, the unsupported part of the cable vibrates due to the influence of the wind and is burdened, and the cable is likely to break. There is a risk.

The present invention has been made in view of the above points, and an object of the present invention is to provide an extra-length holder with high workability and versatility.

In order to achieve the above object, a first invention is a surplus length holder for holding a surplus length of a cable in a suspended suspension line, the fixture having an open portion with a part thereof opened to hold the surplus length of the cable. An annular surplus length winding portion around which the length is wound, a first arm portion extending from one open end of the surplus length winding portion, and a second arm portion extending from the other open end of the surplus length winding portion. and an arm portion, wherein the first arm portion and the second arm portion extend in directions away from each other from the opening portion and extend substantially on the same line. At least one of them has a helical holding part centered on an axis parallel to the extending direction of the first arm part and the second arm part, and the holding part can be wound around the suspension wire. and

According to the above configuration, most of the cable wound in a ring shape can be made to follow the surplus winding portion, so even a cable with weak stiffness can be stably held. By winding at least one of the first arm portion and the second arm portion around the suspension wire, the surplus length holder can be attached. becomes possible. Workers no longer have to worry about contact with other wires or the route of raising the pillar, as in the past, and can easily wind the suspension wire by hand without using any tools, improving workability. In addition, since there is no need for a separate member for attaching the extra length holder and the number of parts is small, the cost can be significantly reduced compared to the conventional method, and safety during high-place work can be ensured.

In a second aspect of the invention, in the first aspect, the first arm has the spiral holding portion extending longer than the second arm, and the second arm is fixable to a suspension wire. It is characterized by having a fixed part.

According to the above configuration, by making the first arm longer than the second arm, winding it around the suspension wire at the holding portion of the first arm, and fixing it to the suspension wire at the fixing portion of the second arm, the effect of the wind is reduced. It is possible to prevent the excess length holder from rotating around the hanging wire or falling off from the hanging wire and holding the cable in a more stable state. For example, among optical cables, a multi-core drop cable that is thin and lacks stiffness tends to break when subjected to pressure, vibration, or the like due to wind. can also be held in a stable state, and disconnection can be prevented.

According to a third invention, in the first or second invention, one wire rod is bent and integrally formed.

According to the above configuration, since it is formed from a single wire rod, the manufacturing cost can be greatly reduced, and it can be stored compactly at a work site or material storage place. When working at height, workers must work in a narrow space inside the gondola for working at height. can be improved.

In a fourth invention, in any one of the first to third inventions, the diameter of the extra-length winding portion is larger than the separation distance between the suspension wire to be attached and other wires installed on the same support. is also small.

According to the above configuration, contact with other wires can be prevented by making the excess length holder smaller than the separation distance and compact. In addition, since the diameter of the surplus winding portion can be used as a guideline when checking the separation distance from other wires, workability can be improved.

In a fifth invention, in any one of the first to fourth inventions, a It is characterized by having a neck portion extending in a direction away from the surplus length winding portion, respectively, between them.

According to the above configuration, the neck creates a space between the surplus winding portion and the suspension wire, so workability is good when the spiral sleeve is wound around the surplus winding portion. Also, when a spiral holder is used to attach the cable to the hanging wire, the holder and the extra winding part are separated, so the holder does not come into contact with the extra winding part. There is no risk of burdening In addition, there is a space between the looped portion of the cable wound along the winding portion of the extra length of the neck and the straight portion of the cable extending along the suspension line, so that the cable can be held without difficulty and the cable is not burdened. do not have. Furthermore, by tying the wound cable around the neck, the cable is less likely to shift from the excess length holder and can be stably fixed.

In a sixth invention, in any one of the first to fifth inventions, the excess length winding portion, the first arm portion, and the second arm portion are formed so as to be positioned substantially on the same plane. It is characterized by

According to the above configuration, even if a large number of extra-length holders are bundled together, it does not become bulky, so that they can be stored compactly and workability can be further improved.

It is possible to provide an excess length holder with high workability and versatility.

It is a figure which shows the state which attached the surplus length holder which concerns on embodiment of this invention to a suspension wire. FIG. 2 is an enlarged view of a main portion of FIG. 1; It is a front view of the excess length holder which concerns on embodiment of this invention. It is a right view of the surplus length holder which concerns on embodiment of this invention. It is a left view of the surplus length holder which concerns on embodiment of this invention. FIG. 4 is a plan view of the extra length holder according to the embodiment of the present invention; It is a bottom view of the surplus length holder which concerns on embodiment of this invention. FIG. 5 is a front view of an extra length holder according to another embodiment of the present invention;

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. It should be noted that the following description of preferred embodiments is essentially merely an example, and is not intended to limit the present invention, its applications, or its uses.

(embodiment)
As shown in FIGS. 1 to 3, the excess length holder 1 according to the embodiment of the present invention is a cable such as an optical cable Y that is wired along a suspension line X installed between utility poles W or the like as supports. is for holding the excess length of the suspension wire X in a wound state.

The surplus length holder 1 includes an annular surplus length winding portion 2 around which the surplus length of the optical cable Y is wound, a first arm portion 3a extending from one open end 2a of the surplus length winding portion 2, and a surplus length. a second arm portion 3b extending from the other open end portion 2b of the winding portion 2;

Specifically, the surplus length winding portion 2 has an open portion 20 in which an upper part of an annular shape is opened, and the open portion 20 has one open end 2a and the other open end 2b formed between. The optical cable Y is wound along this surplus winding portion 2 . Although the size of the extra-length winding part 2 is not limited, the radius of the extra-length winding part 2 should be larger than the allowable bending radius of the optical cable Y to be used so as not to apply excessive force to the optical cable Y. is desirable. Moreover, it is desirable that the diameter of the surplus winding portion 2 is smaller than the separation distance between the suspension wire X to be attached and another wire Z installed on the same utility pole W.

The type of optical cable Y to be used is not limited, but for example, a multi-core drop cable with an allowable bending radius of 100 mm as an optical cable Y (manufactured by Sumitomo Electric Industries, 24SM (PAPB)-DZ-E, standard outer diameter 5.5 mm × 3.3 mm ), the diameter of the surplus winding portion 2 is 200 mm±30. Using such an optical cable Y, it is possible to wind about 10 m along the surplus length winding portion 2, and the separation distance from other wiring Z becomes 300 mm. In general, optical cables come in various thicknesses, but multi-core drop cables are thin and stiff compared to them. Such a multi-core drop cable has conventionally been simply wound in a ring shape and held near a utility pole, so it is susceptible to disconnection due to pressure and vibration caused by the wind.

In addition, separation distance is to ensure a certain distance so that when wires such as electric wires and communication lines are installed crossing or close to each other, they will not come into contact with each other and cause damage or fire. , and is stipulated in the "Ministerial Ordinance for Establishing Technical Standards for Electrical Equipment" and the "Regulations for Enforcement of the Wired Telecommunications Law".

The extra-length winding portion 2 may be J-shaped, U-shaped, or arc-shaped with the open portion 20 wide open. It is most preferable to have a substantially annular shape having 20. With such a shape, most of the optical cable Y wound in a ring shape can be placed along the surplus length winding portion 2, so that it has no stiffness and is easy to break. Even a thin cable can be stably held.

The optical cable Y wound along the surplus winding portion 2 is preferably protected together with the surplus winding portion 2 by a spiral sleeve or the like. In the present embodiment, a spiral sleeve is wrapped around the surplus length winding portion 2 and the outer circumference of the wound optical cable Y to protect it. However, for convenience of explanation, the illustration of the spiral sleeve is omitted in FIGS. did.

The first arm portion 3a and the second arm portion 3b extend from the open portion 20 in directions away from each other. Specifically, as shown in FIGS. 1 to 3, the first arm portion 3a extends rightward and the second arm portion 3b extends leftward. Between the one open end 2a and the first arm portion 3a and between the other open end 2b and the second arm portion 3b, there extend in the direction away from the excess length winding portion 2, respectively. Necks 30a, 30b are preferably provided.

Specifically, the two necks 30a and 30b are bent from one open end 2a and the other open end 2b, respectively, and extend upward. The necks 30a and 30b form a space between the surplus winding portion 2 and the suspension wire X, so that workability is good when the spiral sleeve is wound around the surplus winding portion 2. - 特許庁Further, when a spiral hanger (not shown) manufactured by Denken Co., Ltd., for example, is used as a spiral holder for attaching the optical cable Y to be installed along the suspension line X, the spiral hanger and the extra length winding portion 2 Since the space is separated, there is no risk that the spiral hanger will come into contact with the surplus length winding part 2 and put a burden on the optical cable Y.例文帳に追加Furthermore, by tying the wound optical cable Y at the necks 30a and 30b, the optical cable Y can be stably fixed without slipping from the excess length holder 1, so disconnection can be prevented more reliably. .

As shown in FIG. 4, the first arm portion 3a has a holding portion 31 extending longer than the second arm portion 3b. The holding portion 31 has a spiral shape centered on an axis parallel to the direction in which the first arm portion 3a extends. Further, the second arm portion 3b has a fixing portion 32 that can be fixed to the hanging line X. As shown in FIG. As shown in FIG. 6 , the holding portion 31 and the fixing portion 32 extend substantially on the same line when viewed from above, so that they can follow the hanging line X. As shown in FIG. The length of the first arm portion 3a is not limited, and can be appropriately changed according to the thickness of the suspension wire X to be wound.

Although the type of the suspension wire X is not limited, for example, when using a suspension wire X (30 sq) with a diameter of 6.9 mm, the length of the first arm portion 3a is about 60 mm when it is wound around the suspension wire X about three times. , the length of the second arm 3b is about 16 mm.

A worker can wind the suspension wire X by hand without using a tool by winding the suspension wire X with the helical shape of the holding portion 31 . Further, the fixed part 32 can be fixed to the suspension wire X using the fixture 4 . Although the fixture 4 is not particularly limited, for example, it is composed of a gripper 41 that grips the suspension line X and the fixing portion 32 and a fastener 42 such as a screw that fastens the gripper 41 . Since the fixing portion 32 restricts the rotation of the excess length holder 1 about the hanging wire X, the optical cable Y can be stably held.

It is desirable that the extra length holder 1 is integrally formed by bending one wire rod. Although the material and thickness of the wire are not limited, for example, it is a hard steel wire with a diameter of 0.6 mm. Moreover, it is desirable that the surplus length winding portion 2, the first arm portion 3a and the second arm portion 3b are formed so as to be positioned substantially on the same plane as shown in FIGS.

The surplus length holder 1 according to the present embodiment configured as described above can be attached by winding the first arm portion 3a around the hanging wire X, so that it can be arranged at an arbitrary position away from the supporting object such as the utility pole W. It becomes possible to The operator does not need to consider the contact with other wires and the ascending route of the pillar as in the past, and can easily wind the first arm portion 3a around the suspension wire X by hand without using tools. performance can be improved. In addition, since no additional member is required to attach the extra length holder 1 and the number of parts is small, the cost can be significantly reduced compared to the prior art, and safety in high-place work can be ensured.

Further, the first arm portion 3a is made longer than the second arm portion 3b, wound around the suspension wire X at the holding portion 31 of the first arm portion 3a, and fixed to the suspension wire X at the fixing portion 32 of the second arm portion 3b. Therefore, it is possible to prevent the surplus length holder 1 from rotating around the hanging wire X or falling off from the hanging wire X due to the influence of the wind. Therefore, even if a cable such as a multi-core drop cable is used, even if it is particularly thin and has no stiffness and is easy to disconnect even among general optical cables, it can be held in a stable state, preventing disconnection. can be prevented.

(Other embodiments)
Another embodiment of the present invention will now be described with reference to FIG. In this embodiment, the surplus length holder 10 differs from the above embodiment in the shape of the second arm portion 3c. In the following description, the same reference numerals are given to the same constituent elements as in the above-described embodiment, and the description thereof will be omitted.

The surplus length holder 10 of the present embodiment has an annular surplus length winding portion 2 around which the surplus length of the optical cable Y is wound, and one open end portion of the surplus length winding portion 2. It comprises a first arm 3a extending from 2a and a neck 30a.

A neck portion 30b extends from the other open end portion 2b in the same manner as in the above embodiment, and a second arm portion 3c extending away from the first arm portion 3a is provided at the upper end portion of the neck portion 30b. The second arm portion 3c has a spiral holding portion 31 centered on an axis parallel to the direction in which the second arm portion 3c extends. The second arm portion 3c has substantially the same length as the first arm portion 3a, which similarly has a spiral holding portion 31. As shown in FIG.

In the present embodiment, the second arm portion 3c can be wound around the suspension wire X by hand without using a tool by winding the suspension wire X around the spiral shape of the holding portion 31 in the same manner as the first arm portion 3a. is. By winding both the first arm portion 3a and the second arm portion 3c around the suspension wire X, the excess length holder 10 can be attached to the suspension wire X.

In such an embodiment, in order to prevent the excess length holder 10 from rotating with respect to the suspension wire X, the fixture 4 may be attached at an arbitrary location and fixed to the suspension wire X.

1 extra-length holder 2 extra-length winding part 2a one open end 2b other open end 20 open part 3a first arm 3b second arm 30a neck 30b neck 31 holding part 32 fixing part 4 fixing tool 41 Gripper 42 Fastener 5 Arm (other embodiment)
W Telephone pole X Suspension line Y Optical cable Z Wiring

Claims (6)

A surplus length holder that holds the surplus length of the cable in the suspended suspension line,
an annular surplus length winding portion having a partially opened open portion and around which the surplus length of the cable is wound;
a first arm portion extending from one open end of the surplus winding portion;
a second arm portion extending from the other open end portion of the extra length winding portion;
The first arm portion and the second arm portion extend in directions away from each other from the open portion and extend substantially on the same line, and at least one of the first arm portion and the second arm portion extends along the first A surplus length holder, comprising: a helical holding portion centered on an axis parallel to an extending direction of an arm portion and said second arm portion, said holding portion being capable of being wound around a suspension wire. The extra length holder according to claim 1,
The first arm has the spiral holding portion extending longer than the second arm,
The surplus length holder, wherein the second arm has a fixing portion that can be fixed to the suspension wire. In the extra length holder according to claim 1 or 2,
A surplus length holder characterized by being integrally formed by bending one wire rod. In the extra length holder according to any one of claims 1 to 3,
The surplus length holder, wherein the diameter of the surplus length winding portion is smaller than the separation distance between the suspension wire to be attached and other wires installed on the same support. In the extra length holder according to any one of claims 1 to 4,
Between the one open end portion and the first arm portion and between the other open end portion and the second arm portion are provided neck portions extending in a direction away from the extra length winding portion. Extra length retainer, characterized in that it comprises: In the extra length holder according to any one of claims 1 to 5,
The surplus length holder, wherein the surplus length winding portion, the first arm portion, and the second arm portion are formed so as to be positioned substantially on the same plane.

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