JP3849538B2 - Cable support - Google Patents

Cable support Download PDF

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Publication number
JP3849538B2
JP3849538B2 JP2002037454A JP2002037454A JP3849538B2 JP 3849538 B2 JP3849538 B2 JP 3849538B2 JP 2002037454 A JP2002037454 A JP 2002037454A JP 2002037454 A JP2002037454 A JP 2002037454A JP 3849538 B2 JP3849538 B2 JP 3849538B2
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JP
Japan
Prior art keywords
cable
cradle
support
anchor bolt
holder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP2002037454A
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Japanese (ja)
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JP2003209917A (en
Inventor
茂幸 横堀
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株式会社浅羽製作所
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Priority to JP2002037454A priority Critical patent/JP3849538B2/en
Publication of JP2003209917A publication Critical patent/JP2003209917A/en
Application granted granted Critical
Publication of JP3849538B2 publication Critical patent/JP3849538B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Supports For Pipes And Cables (AREA)
  • Electric Cable Installation (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、新幹線等の軌道に沿って布設されるケーブルを支持するために、特にトンネル等の壁面部に取り付けて用いられるケーブル支持具に関する。
【0002】
【従来の技術】
例えば、トンネル等の壁面部に固定される合成樹脂製の型物成形品である受け台と、この受け台に装着される同様な型物成形品であるケーブル受けを備えた従来のケーブル支持具は、受け台の上部個所または上下2か所でアンカーボルトにより側壁に取り付け、ケーブルをアンカーボルトによる受け台取り付け部の下方或いは中間部分でケーブル受け上に支持して、ケーブルを適当な抑止具を用いてケーブル受け上にを抑止できるように構成されている。
【0003】
【発明が解決しようとする課題】
ケーブルは車両通過時に風圧を受けるが、トンネル内では車両通過直後に強い風圧が発生して振動し、特に、カーブ個所ではケーブルの自重とトンネル中心方向への吸引力による影響を受けて、トンネル壁面から離れる方向へ向かって大きな荷重が作用し、アンカーボルトによる受け台の取り付け部に応力が生じて、この応力の反復が原因で支持台は取付け部から破損し、支持機能を喪失するという問題があった。
【0004】
本発明はかかる問題を解決したものであって、その目的は、ケーブルの支持位置と受け台を取り付けるアンカーボルト位置をほぼ同じ高さとして、大きな荷重が作用しても応力の発生を可及的に軽減して破損する心配を解消する一方、ケーブル押えによりケーブルの抑止と同時に受け台からのケーブル受けの抜け止めが果たされるように改良したケーブル支持具を提供することにある。また、他の目的は、振動等でアンカーボルトのナットが緩んだ場合でも、ナットの脱落を阻止してケーブル支持機能を保持できるように改良したケーブル支持具を提供することにある。
【0005】
【課題を解決するための手段】
本発明の上記目的を達成するために、本発明の特徴とするケーブル支持具は、合成樹脂製の型物成形品である受け台と、この受け台の前面部に嵌合可能に装着される同様な型物成形品であるケーブル受けと、このケーブル受けに回動可能に装着される同様な型物成形品であるケーブル押えとを備え、ケーブル受けにはケーブル押えとの間にケーブルを挟着できるケーブル支持部が突設されており、そのケーブル受けは、ケーブル支持部上に支持されるケーブル位置と受け台を壁面部に固定するアンカーボルト位置がほぼ同じ高さになるように、受け台に装着され、ケーブル支持部とケーブル押えの前端側は互いに止め外し可能な接合部にそれぞれ形成されている一方、受け台には、その受け台にケーブル受けが装着されてケーブル支持部がケーブル押えにより閉じられた時に、該ケーブル押えの後端側に設けられている抜け止めが係止できる係止部が設けられている構成である。
【0006】
この構成にによれば、例えばトンネル内カーブ個所のケーブル布設で車両通過時に大きな荷重が作用しても、アンカーボルトによる取付け部に発生する応力は軽減され、本支持具は強度的に安定して耐久性が向上する。また、ケーブル受け側には、アンカーボルトの挿通部分に臨ませて、該アンカーボルトのねじ山に係入するナット脱落防止片を取り付け、受け台を締め付けるナットの脱落を阻止して、ケーブルの支持機能を維持できるように実施するのが好ましい。
【0007】
【発明の実施の形態】
以下に、本発明の実施の形態を図面を参照して説明する。1はトンネル等の壁面部wに固定される受け台、2は受け台1の前面部に嵌合可能に装着されるケーブル受け、3はケーブル受け2に回動可能に装着されるケーブル押え(4はそのヒンジ部であり、ケーブル受け2側に弾性の挟持部として形成されている。)であって、これらの部材は従来のものと同様に何れもナイロン等の合成樹脂製の型物成形品である。なお、ヒンジ部4にはケーブル押え3側の軸部4aが装着されている。図中、5は受け台1を壁面部wに固定するアンカーボルト、6はそのナットである。
【0008】
受け台1の前面部は中間部11を残して左右の縁部12,12側が相対向した嵌合溝13,13に形成されており、中間部11には後述するケーブル支持部上に支持されるケーブル位置とほぼ同じ高さでアンカーボルト5の挿通穴14が設けられている。ケーブル受け2の後部は嵌合溝13,13間に上方から挿入できるように門形状の嵌合部21に形成されており、嵌合部21には、ケーブル押え3の下側に位置して該ケーブル押え3との間にケーブルc(図5を参照)を挟着するケーブル支持部22が突設されている。
【0009】
ケーブル支持部22は上方へ向かってゆるやかに傾斜し、その下面は嵌合部21と連続して鞍状に開放しており、ケーブル支持部22のヒンジ部4に臨んだ下部には、アンカーボルト5のねじ山に係入してナット6の脱落を阻止する、ナット脱落防止片(金属製のバネ片)7が取り付けられている。また、ケーブル支持部22とケーブル押え3の前端側は互いに止め外し可能な接合部23,31にそれぞれ形成され、両接合部23,31には後述する止めピンの差し込み部23a,31aが相対応した状態で設けられている。
【0010】
ケーブル押え3には軸部4aの左右両端側に後方へ向けて突片状の抜け止め32,32が連設され、他方、受け台1には、嵌合溝13,13間にケブル受け2の嵌合部21が嵌合して該ケブル受け2が受け台1に装着され、ケーブル支持部22がケーブル押え3により閉じられた時に、上記抜け止め32,32を下側から係止できるようにした鍔状の係止部15,15がその左右両側縁12,12の上端側寄りに設けられている。なお、ケーブル支持部22の上面部22aは、ケーブル押え3との間にケーブルcを支持するために湾曲面に形成されている。
【0011】
次に、上記構成に係るケーブル支持具の作用を説明する。先ず、受け台1をアンカーボルト5とナット6により壁面部wに取り付け、受け台1の嵌合溝13,13間にケーブル受け2の嵌合部21を挿入して受け台1にケーブル受け2を装着する。受け台1にケーブル受け2が装着されると、ケーブル受け2側に取り付けられているナット脱落防止片7はナット6の前面側でアンカーボルト5のねじ山に自動的に係入する(図2を参照)。なお、ケーブル受け2の挿入作業時にはケーブル押え3は上方へ開かれている。
【0012】
次いで、ケーブル支持部22の上面部22aに必要に応じてゴムスペーサ8を介在させてケーブルcを布設し、ケーブル押え3を閉じて、ケーブル押え3の抜け止め32,32を下側から受け台1側の係止部15,15に係止させる一方、接合したケーブル支持部22とケーブル押え3の前端の差し込み部23a,31aに変形Uの字状の止めピン9を差し込んで掛け止めれば、ケーブルcの支持作業は完了する(図5を参照)。
【0013】
【発明の効果】
本発明は上記の如くであって、ケーブル受けとケーブル押えの接合部側の掛け止め及び受け台とケーブル押えとの係止作用によって、受け台からのケーブル受けの抜け止めが果たされ、ケーブル受けの装着状態は強固に安定し、また、ナットの脱落防止機能によって受け台自体の取り付け状態も安定して、ケーブルの支持機能を保持できる。特に、本ケーブル支持具は、ケーブル受けに支持されるケーブル位置と受け台1を固定するアンカーボルト位置がほぼ同じ高さとなるように構成されているので、トンネル内で風圧等により大きな荷重が作用しても応力は軽減されて強度的に安定し、耐久性も一段と向上する。
【図面の簡単な説明】
【図1】本発明の実施の形態を組み立てて示す正面図である。
【図2】図1のA−A線断面図である。
【図3】図1に示すもの分離しゴムスペーサーを除いて後方側から見た斜視図である。
【図4】図3と同様な図で前方側から見た斜視図である。
【図5】図1に示すものの使用状態を前方側から見た略示的斜視図である。
【符号の説明】
1は受け台、2はケーブル受け、3はケーブル押え、4はヒンジ部、4aは軸部、5はアンカーボルト、6はナット、7は脱落防止片、9は止めピン、13は嵌合溝、15は係止部、21は嵌合部、22はケーブル支持部、23,31は接合部、32は抜け止めである。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cable support that is used by being attached to a wall surface of a tunnel or the like in order to support a cable laid along a track such as a bullet train.
[0002]
[Prior art]
For example, a conventional cable support provided with a cradle that is a molded product made of synthetic resin fixed to a wall surface of a tunnel or the like, and a cable cradle that is a similar molded product that is mounted on the cradle. Attach the cable to the side wall with anchor bolts at the upper part or two places above and below the cradle, and support the cable on the cable cradle below or in the middle of the cradle mounting part with the anchor bolt. It is configured so that it can be restrained on the cable receiver.
[0003]
[Problems to be solved by the invention]
Although the cable receives wind pressure when passing through the vehicle, strong wind pressure is generated in the tunnel and vibrates immediately after passing through the vehicle.In particular, the curve wall is affected by the weight of the cable and the suction force toward the center of the tunnel. A large load is applied in the direction away from the base, and stress is generated in the mounting part of the cradle by the anchor bolt. Due to the repetition of this stress, the support base is damaged from the mounting part and the support function is lost. there were.
[0004]
The present invention solves this problem, and its purpose is to make the generation of stress possible even when a large load is applied by setting the support position of the cable and the position of the anchor bolt to which the cradle is attached to substantially the same height. An object of the present invention is to provide an improved cable support so that the cable holder can be restrained and the cable holder can be prevented from coming off from the cradle at the same time as the cable retainer. Another object of the present invention is to provide an improved cable support that prevents the nut from falling off and maintains the cable support function even when the nut of the anchor bolt is loosened due to vibration or the like.
[0005]
[Means for Solving the Problems]
In order to achieve the above object of the present invention, a cable support that is a feature of the present invention is attached to a cradle, which is a molded product made of synthetic resin, and to be fitted to the front surface of the cradle. A cable receiver, which is a similar molded product, and a cable presser, which is a similar molded product that is rotatably attached to the cable receiver, are provided, and the cable receiver sandwiches the cable between the cable presser and the cable presser. A cable support that can be worn is projected, and the cable receiver is positioned so that the position of the cable supported on the cable support and the position of the anchor bolt that fixes the cradle to the wall surface are approximately the same height. The cable support and the front end of the cable retainer are attached to the base, and the front end side of the cable presser is formed as a joint that can be removed from each other, while the cable support is attached to the base and the cable support is attached to the base. When closed by Bull presser, retained is provided on the rear end side of the cable retainer is configured to engagement portion can be locked is provided.
[0006]
According to this configuration, for example, even when a large load is applied when the vehicle passes through the cable laying in the curve portion in the tunnel, the stress generated in the mounting portion by the anchor bolt is reduced, and the support is stable in strength. Durability is improved. Also, on the cable receiving side, face the insertion part of the anchor bolt, attach a nut drop prevention piece that engages with the thread of the anchor bolt, and prevent the nut that tightens the cradle from falling off to support the cable. It is preferable that the function be maintained.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 is a cradle fixed to a wall surface w of a tunnel or the like, 2 is a cable cradle that is fitted to the front surface of the cradle 1 so as to be fitted, and 3 is a cable presser that is pivotally attached to the cable cradle 2 ( 4 is a hinge part, which is formed as an elastic clamping part on the cable receiver 2 side.) These members are molded from synthetic resin such as nylon as in the conventional one. It is a product. The hinge portion 4 is provided with a shaft portion 4a on the cable presser 3 side. In the figure, 5 is an anchor bolt for fixing the cradle 1 to the wall surface w, and 6 is its nut.
[0008]
The front surface portion of the cradle 1 is formed in fitting grooves 13 and 13 whose left and right edge portions 12 and 12 face each other, leaving the intermediate portion 11. The intermediate portion 11 is supported on a cable support portion described later. An insertion hole 14 for the anchor bolt 5 is provided at substantially the same height as the cable position. The rear portion of the cable receiver 2 is formed in a gate-shaped fitting portion 21 so that it can be inserted between the fitting grooves 13 and 13 from above, and the fitting portion 21 is positioned below the cable retainer 3. A cable support portion 22 for projecting the cable c (see FIG. 5) is provided between the cable presser 3 and the cable holder 3.
[0009]
The cable support portion 22 is gently inclined upward, and the lower surface thereof is open in a hook shape continuously with the fitting portion 21, and an anchor bolt is provided below the hinge portion 4 of the cable support portion 22. A nut fall-off prevention piece (metal spring piece) 7 that is engaged with the thread 5 and prevents the nut 6 from coming off is attached. Further, the front end side of the cable support portion 22 and the cable retainer 3 are formed at joint portions 23 and 31 that can be removed from each other. Insertion portions 23a and 31a of stop pins described later correspond to the joint portions 23 and 31, respectively. It is provided in the state.
[0010]
The cable retainer 3 is provided with protrusions 32 and 32 in a projecting manner toward the rear on both left and right ends of the shaft portion 4 a, while the cable holder 2 is provided between the fitting grooves 13 and 13 on the cradle 1. When the fitting portion 21 is fitted and the cable holder 2 is attached to the cradle 1 and the cable support portion 22 is closed by the cable retainer 3, the retaining members 32 and 32 can be locked from below. The hook-shaped latching | locking parts 15 and 15 which were made are provided near the upper end side of the both right and left both-side edges 12 and 12. The upper surface portion 22 a of the cable support portion 22 is formed in a curved surface to support the cable c between the cable retainer 3 and the cable support portion 22.
[0011]
Next, the operation of the cable support according to the above configuration will be described. First, the cradle 1 is attached to the wall surface w by the anchor bolt 5 and the nut 6, and the fitting portion 21 of the cable cradle 2 is inserted between the fitting grooves 13 and 13 of the cradle 1 so that the cable cradle 2 is attached to the cradle 1. Wear. When the cable receiver 2 is attached to the cradle 1, the nut drop prevention piece 7 attached to the cable receiver 2 side automatically engages with the thread of the anchor bolt 5 on the front side of the nut 6 (FIG. 2). See). Note that the cable presser 3 is opened upward when the cable receiver 2 is inserted.
[0012]
Next, the cable c is laid on the upper surface portion 22a of the cable support portion 22 as necessary with the rubber spacer 8 interposed therebetween, the cable presser 3 is closed, and the retainers 32 and 32 of the cable presser 3 are received from below. While locking to the locking portions 15 and 15 on the one side, inserting the deformation U-shaped stop pin 9 into the insertion portions 23a and 31a at the front end of the joined cable support portion 22 and the cable presser 3, The support operation for the cable c is completed (see FIG. 5).
[0013]
【The invention's effect】
The present invention is as described above, and the retaining of the cable receiver and the cable presser and the locking action of the receiving base and the cable presser prevent the cable receiver from coming off from the base. The mounting state of the receiver is firmly stabilized, and the mounting state of the cradle itself is stabilized by the function of preventing the nut from falling off, so that the support function of the cable can be maintained. In particular, the cable support is configured so that the position of the cable supported by the cable receiver and the position of the anchor bolt for fixing the cradle 1 are substantially the same height, so that a large load acts on the tunnel due to wind pressure or the like. Even so, the stress is reduced, the strength is stabilized, and the durability is further improved.
[Brief description of the drawings]
FIG. 1 is a front view showing an assembled embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
3 is a perspective view as viewed from the rear side with the rubber spacer separated and separated from that shown in FIG. 1; FIG.
4 is a perspective view similar to FIG. 3 and viewed from the front side. FIG.
FIG. 5 is a schematic perspective view of the use state shown in FIG. 1 as viewed from the front side.
[Explanation of symbols]
1 is a cradle, 2 is a cable holder, 3 is a cable holder, 4 is a hinge part, 4a is a shaft part, 5 is an anchor bolt, 6 is a nut, 7 is a drop-off prevention piece, 9 is a set pin, and 13 is a fitting groove , 15 is a locking portion, 21 is a fitting portion, 22 is a cable support portion, 23 and 31 are joint portions, and 32 is a stopper.

Claims (2)

合成樹脂製の型物成形品である受け台と、この受け台の前面部に嵌合可能に装着される同様な型物成形品であるケーブル受けと、このケーブル受けに回動可能に装着される同様な型物成形品であるケーブル押えとを備え、ケーブル受けにはケーブル押えとの間にケーブルを挟着できるケーブル支持部が突設されており、そのケーブル受けは、ケーブル支持部上に支持されるケーブル位置と受け台を壁面部に固定するアンカーボルト位置がほぼ同じ高さになるように、受け台に装着され、ケーブル支持部とケーブル押えの前端側は互いに止め外し可能な接合部にそれぞれ形成されている一方、受け台には、その受け台にケーブル受けが装着されてケーブル支持部がケーブル押えにより閉じられた時に、該ケーブル押えの後端側に設けられている抜け止めが係止できる係止部が設けられていることを特徴とするケーブル支持具。A cradle that is a molded product made of synthetic resin, a cable cradle that is a similar molded product that can be fitted to the front surface of the cradle, and a cable cradle that is rotatably mounted on the cable cradle. A cable holder, which is a similar molded product, and a cable support that projects the cable between the cable holder and the cable holder. The cable receiver is placed on the cable support. A joint that is attached to the cradle so that the position of the cable to be supported and the anchor bolt position that secures the cradle to the wall surface are at the same height, and the cable support and the front end of the cable retainer can be locked together. On the other hand, the cradle is provided on the rear end side of the cable holder when the cable holder is mounted on the cradle and the cable support is closed by the cable holder. Cable support that only stop, characterized in that the locking portion can be locked is provided. ケーブル受け側には、アンカーボルトの挿通部分に臨ませて、該アンカーボルトのねじ山に係入するナット脱落防止片が取り付けられていることを特徴とする請求項1記載のケーブル支持具。2. The cable support according to claim 1, wherein a nut drop prevention piece that engages with a thread of the anchor bolt is attached to the cable receiving side so as to face an insertion portion of the anchor bolt.
JP2002037454A 2002-01-10 2002-01-10 Cable support Expired - Lifetime JP3849538B2 (en)

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Application Number Priority Date Filing Date Title
JP2002037454A JP3849538B2 (en) 2002-01-10 2002-01-10 Cable support

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Application Number Priority Date Filing Date Title
JP2002037454A JP3849538B2 (en) 2002-01-10 2002-01-10 Cable support

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JP2003209917A JP2003209917A (en) 2003-07-25
JP3849538B2 true JP3849538B2 (en) 2006-11-22

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101027373B1 (en) 2011-01-25 2011-04-11 유호근 Cable support structure for underground power lines
CN109066520A (en) * 2018-10-31 2018-12-21 湖州织里德家利电线电缆有限公司 A kind of fixed supporting structure of cable
CN113991535B (en) * 2021-10-26 2024-04-19 国网山东省电力公司平阴县供电公司 Auxiliary device for laying cable

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