JPH0238960Y2 - - Google Patents
Info
- Publication number
- JPH0238960Y2 JPH0238960Y2 JP1983079696U JP7969683U JPH0238960Y2 JP H0238960 Y2 JPH0238960 Y2 JP H0238960Y2 JP 1983079696 U JP1983079696 U JP 1983079696U JP 7969683 U JP7969683 U JP 7969683U JP H0238960 Y2 JPH0238960 Y2 JP H0238960Y2
- Authority
- JP
- Japan
- Prior art keywords
- male
- female
- cable
- slope
- fitting
- 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
Links
- 230000013011 mating Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 description 16
- 230000001681 protective effect Effects 0.000 description 9
- 239000000945 filler Substances 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
- D07B1/141—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases
- D07B1/144—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases for cables or cable components built-up from metal wires
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
- D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2083—Jackets or coverings
- D07B2201/2084—Jackets or coverings characterised by their shape
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Ropes Or Cables (AREA)
- Bridges Or Land Bridges (AREA)
Description
本考案はケーブル保護カバーに関するものであ
る。特に詳しくは本考案は斜張橋における橋げた
を吊支するのに用いられる張りケーブルの保護用
カバーに係わるものである。
斜張橋における従来の張りケーブルの例とし
て、保護カバーとしての機能を果す継目無し管で
ケーブルを被覆し、ケーブルと継目無し管との間
隙部にセメントを充填したものが知られている。
しかし、このような構造のものはケーブルを継目
無し管の中心に位置させ難いばかりでなく、充填
するセメントを混練した際の水分あるいは、充填
後の養生の際に発生するガス等により腐蝕を生じ
ケーブルの耐久性を損うという欠点がある。ま
た、該ケーブルは保護カバーとしての継目無し管
で被覆したあと張設することになるので重量が重
くなり、張設工事がやり難いという問題がある。
一方、ケーブルを張設したあとで、被覆するこ
とのできる各種構造ケーブル保護カバーが提案さ
れている。第１図の断面図で示すのはその１つの
例で、硬質プラスチツクあるいは金属などの材質
からなり、長手方向の側縁に雄部２と雌部３とを
設けた一対の樋形をした半管状材１，１を対向さ
せて用いるケーブル保護カバーである。すなわ
ち、ケーブル４をはさんで、同形の半管状材１，
１同志を対向させて押圧し、雄部２の凸条５と雌
部３の嵌合溝６とを嵌合させて保護カバーとして
の管体を形成させ、ケーブル４との間隙部に、形
成された管体の端部からポリウレタンの発泡液や
セメント等からなる充填材７を注入充填してなる
ものである。この構造のものはケーブル張設後で
も被覆工事が可能であるという利点がある。しか
して、このような保護カバーにおいては、ケーブ
ル被覆後に注入する充填材の内圧に耐えるように
側縁に設けた雄部２と雌部３とが強固に嵌合して
離脱することないような構造とする必要があり、
そのため、第２図イ，ロ部分拡大図で示すように
雄部２における凸条５の側壁と雌部３における嵌
合溝６の内側に長手方向に向けて鋸歯状の多数の
山形突条９を連設して雌雄嵌合面を形成させ、半
管状材１，１を対向させて矢印方向へ押圧し雄部
２と雌部３を嵌合させたとき互いにかみ合い離脱
せぬよう構成し、さらに必要に応じシール材とし
て機能するゴム質の弾性体８を嵌合部に介在させ
てある。ところで、この雌雄嵌合面における凸条
５の側壁に連設される鋸歯状の上記山形突条９
は、第２図で示すように、半管状材１，１を押圧
する方向に対して、直角なフラツト面５ａと、山
形突条９頂部から一定の傾斜角度を持つて形成さ
れる傾斜面５ｂとからなつており、そのために、
大きな嵌合押圧荷重を必要とする。また、嵌合溝
６の内側に連設される山形突条９はフラツト面６
ａと山形頂部から一定の傾斜角度を持つて形成さ
れる傾斜面６ｂとからなつている。従つて、半管
状材１，１を押圧して雌、雄部を嵌合させると
き、第３図の部分拡大断面図で示すように雌部２
の凸条５側壁における山形凸条９の頂部と雌部３
の嵌合溝６内側における山形突条９の頂部がこす
り合つて損傷し、丸味を帯びる。特に、半管状材
１，１が軟かい材質のものはこのような損傷が起
り易く嵌合開始先端に近い程、その程度が激し
い。そのため、雌雄嵌合面に隙間を生じて、充填
材が洩れたり、その充填内圧に坑しきれず充填が
緩んで、永い間のうちに雨水などが侵入したりし
て保護カバーとしての機能を果さなくなる結果と
なつていた。
本考案は、雄部２における凸条５の側壁ならび
に雌部３における嵌合溝６の内側に設けられる鋸
歯状の上記山形突条９を異つた角度を持つ２つの
傾斜面より構成して連結することにより、上記欠
点を解消するものである。
すなわち、本考案は一対の樋形をした半管状材
を対向させて、長手方向の側縁にそれぞれ設けた
雄部および雌部を互いに嵌合させ、管体を形成さ
せることにより、ケーブルを被覆するケーブル保
護カバーにおいて、雄部における長手方向に連続
する凸条と雌部における嵌合溝との嵌合面に、互
いに噛み合う多数の歯列を長手方向に設け、且
つ、該各歯列は嵌合先端から元部に向けて漸次肉
厚となる勾配を持つ緩斜面と急速に肉薄となる勾
配を持つ急斜面を備えてなることを特徴とするケ
ーブル保護カバーを要旨とするものである。
以下、本考案を図面に基いて説明する。
第４図及び第５図は本考案の１実施例の保護カ
バーの一部をなす樋形をした半管状材を組み立て
る前の状態を示す断面図、第６図は同例の組立て
後における保護カバーの断面図である。図におい
て、１，１は材質がアルミニウム、銅、鉄、チタ
ニウム、鉛、これらの合金、または硬質プラスチ
ツク等からなる同一形状および大きさをした樋形
の半管状材で、その長手方向側縁には凸条５を備
えた雄部２および嵌合溝６を備えた雌部６が設け
られている。半管状材１，１は一対の組み合わせ
として用いられ、ケーブル４をはさんで長手方向
において互いに向い合わせ、矢印方向へ押圧する
ことにより雄部２における凸条５と雌部３におけ
る嵌合溝６とが嵌合されて、管体が形成され、そ
のあと該管体の一端から発泡ポリウレタン、セメ
ントなどの充填材７を注入することにより半管状
材１，１との間隙部が充填されて第５図の断面図
で示すような保護カバーで被覆された張りケーブ
ルが構成される。なお、雌雄嵌合面の気密性を確
保する目的で必要に応じ、雄部２における凸条５
の根本部および雌部３の嵌合溝６に例えば天然ま
たは合成ゴムのような弾性体８がシール材として
用いられる。
第７図イ，ロは上記半管状材１，１の側縁に設
けられている雄部２および雌部３の部分拡大断面
図、第８図は両者が嵌合した状態を示す部分拡大
断面図である。図示のとおり、雄部２における凸
条５の側壁には多数の山形をした歯列１０が設け
られ、該各歯列１０は凸条５の嵌合先端５ａから
元部（根元部の方）へ向つて、凸条５の断面にお
いて漸次肉厚となる勾配を持つた緩斜面１０ａ
と、急速に肉薄となる勾配を持つた急斜面１０ｂ
とを備えている。一方、雌部３における嵌合溝６
の内側にも多数の山形をした歯列１１が、上記凸
条５における歯列１０と噛み合うように設けら
れ、該各歯列１１は雌部３の嵌合先端６ａから後
方（嵌合溝６の方）へ向つて雌部３の断面におい
て漸次肉厚となる勾配を持つた緩斜面１１ａと急
速に肉薄となる勾配を持つ急斜面１１ｂを備えて
いる。すなわち、本考案の保護カバーは、雄部２
における凸条５と、雌部３における嵌合溝６に設
ける歯列１０，１１を上記のように構成してなる
結果、前記第２図イ，ロで示す従来の保護カバー
のように、雄部２と雌部３との嵌合方向に対して
直角なフラツト面がないので、雌雄両部の嵌合が
無理なく行なうことができて山形の歯列頂部同志
の摩擦が緩和され、前記第３図に示すような嵌合
面生ずる損傷を回避できる利点がある。
第９図は雄部２における凸条５の側壁に設けら
れる各歯列１０、雌部３における嵌合溝内側に設
けられる各歯列の部分拡大断面図を示す。山形の
各歯列のうち、歯列１０を形成する緩斜面１０ａ
と、雌雄部の嵌合する方向（矢印で示す。以下同
じ）に直角な面Ｘとのなす前面角度θaと、各歯
列１１を形成する緩斜面１１ａと雌雄部の嵌合す
る方向に直角な面Ｘとのなす前面角度θbとは等
しい。又、各歯列１０を形成する急斜面１０ｂと
雌雄部の嵌合する方向に直角な面とがなす背面角
度θcと、各歯列１１を形成する急斜面１１ｂと雌
雄部の嵌合する方向に直角な面Ｘとのなす背面角
度θdは等いように形成される。しかして、半管
状材１，１の嵌合押圧荷重を軽減し、充填材の充
填に対する耐圧強度を確保するには、前記前面角
度θa，θbは40〜60゜の範囲、背面角度θc，θdは10
〜20゜の範囲が好ましい。
第１０図は第９図における歯列１０，１１とは
異る他の例の部分拡大断面図で、歯列１０，１１
の先端に嵌合方向と平行方向にフラツトな面、１
０ｃ，１１ｃを設けた例を示す。このような構造
とすると、雌雄部嵌合時における押圧荷重がさら
に軽減され、歯列１０，１１同志のまさつが軽減
されて損傷を小さくする効果がある。
本考案のケーブル保護カバーは以上のべたよう
に、同一形状の大きさの一対の樋形をした半管状
材をその長手方向の側縁に設けた雌雄嵌合部で係
止させる管体とし、さらに、雌雄嵌合部における
嵌合面に、緩斜面と急斜面とを備えたがいに噛合
する歯列を設けた構造よりなり次のような利点を
有し、斜張橋の吊支ケーブルの架設に極めて有用
なものである。
１ 管体の材質がアルミニウム、銅、チタニウ
ム、鉛、それらの合金よりなるので、耐蝕性、
対侯性に優れ、寿命が長く、橋梁上のケーブル
保護カバーとして最適である。勿論、美観も長
続きし、維持も容易である。
２ 従来の継目無し管体のケーブル保護カバーの
ように、ケーブルを張設する前に、ケーブルを
予め通しておく必要がなく、ケーブルを張設後
に半管状材の両側縁部の雌雄嵌合部を係止する
構造であるので橋梁架設工事上特にケーブルの
カバリングのための配慮を必要とせず、施工が
やり易い。
３ 半管状材同志の嵌合押圧荷重が小さくて済
み、嵌合押圧装置は小容量のものでよいので、
作業がやり易く張設工事費が低減できる。
４ 充填材の充填に対する耐圧強度が向上するの
で、従来公知のものよりも半管状材の薄肉、軽
量化が可能となる。
次に本考案のケーブル保護カバーの性能を実験
例によつて説明する。
実施例
材質がアルミニウム合金押出形材A6063S−T5
からなり、側縁に第７図で示す雄部および雌部を
備えた、第４図に示す半管状材２枚を対向させて
組合わせ雄部および雌部を嵌合させ管体とした本
考案のケーブル保護カバーよりなる供試々料５個
を作成した。
一方、同一材質からなり、側縁に第２図で示す
雄部および雌部を備えた、第１図に示す半管状材
２枚を対向させて組み合わせ雄部および雌部を嵌
合させ管体とした、従来のケーブル保護カバーよ
りなる比較試料５個を作成した。
これらの供試々料の、半管状材を嵌合させ管体
とする時の供試体全数の嵌合押圧荷重および、嵌
合された管体の長手方向を密閉して、本考案品２
供試体、比較品１供試体の水圧加圧時の耐圧強度
を実験により測定した。その結果を第１表に示
す。
The present invention relates to a cable protection cover. More specifically, the present invention relates to a protective cover for tension cables used to suspend the girders of cable-stayed bridges. A known example of a conventional cable-stayed bridge is one in which the cable is covered with a seamless tube that functions as a protective cover, and the gap between the cable and the seamless tube is filled with cement.
However, with this type of structure, it is not only difficult to position the cable in the center of the seamless pipe, but also corrosion occurs due to moisture from mixing the filling cement or gas generated during curing after filling. This has the disadvantage of impairing the durability of the cable. Further, since the cable is covered with a seamless pipe as a protective cover and then stretched, it becomes heavy and there is a problem in that it is difficult to carry out the stretching work. On the other hand, various structural cable protection covers have been proposed that can cover the cable after it has been stretched. One example is shown in the cross-sectional view of Figure 1, which consists of a pair of gutter-shaped halves made of a material such as hard plastic or metal and having a male part 2 and a female part 3 on the longitudinal side edges. This is a cable protection cover that is used with tubular materials 1 and 1 facing each other. That is, the same-shaped semi-tubular member 1,
1 to face each other and press them to fit the convex strip 5 of the male part 2 and the fitting groove 6 of the female part 3 to form a tube body as a protective cover, and to form a tube body in the gap with the cable 4. A filler 7 made of polyurethane foam, cement, or the like is injected into the end of the tube. This structure has the advantage that it is possible to cover the cable even after it has been installed. However, in such a protective cover, the male part 2 and the female part 3, which are provided on the side edges to withstand the internal pressure of the filler injected after covering the cable, are tightly fitted together so that they will not come apart. It is necessary to have a structure,
Therefore, as shown in the enlarged partial views of FIG. are arranged in series to form a male and female fitting surface, and when the semi-tubular members 1, 1 are opposed and pressed in the direction of the arrow to fit the male part 2 and the female part 3, they engage with each other and do not separate, Furthermore, a rubber elastic body 8 that functions as a sealing material is interposed in the fitting portion if necessary. By the way, the serrated chevron-shaped protrusion 9 is connected to the side wall of the protrusion 5 on the male and female mating surfaces.
As shown in FIG. 2, there are a flat surface 5a perpendicular to the direction in which the semi-tubular members 1, 1 are pressed, and an inclined surface 5b formed at a constant inclination angle from the top of the chevron-shaped protrusion 9. Because of this,
Requires a large fitting press load. In addition, the chevron-shaped protrusion 9 provided continuously on the inside of the fitting groove 6 has a flat surface 6.
a and an inclined surface 6b formed at a constant angle of inclination from the top of the chevron. Therefore, when pressing the semi-tubular members 1 and 1 to fit the female and male parts together, the female part 2
The top of the chevron-shaped protrusion 9 on the side wall of the protrusion 5 and the female part 3
The tops of the chevron-shaped protrusions 9 on the inside of the fitting grooves 6 rub against each other and are damaged, resulting in roundness. In particular, if the semi-tubular members 1, 1 are made of a soft material, such damage is likely to occur, and the closer to the fitting start tip, the more severe the damage is. As a result, gaps may be created between the male and female mating surfaces, causing the filling material to leak, or the filling may become loose due to the internal pressure of the filling material, allowing rainwater to enter over a long period of time, and the function of the protective cover is no longer fulfilled. The result was that it was no longer possible. In the present invention, the side wall of the protrusion 5 in the male part 2 and the serrated chevron-shaped protrusion 9 provided on the inside of the fitting groove 6 in the female part 3 are constructed by two inclined surfaces having different angles and connected. By doing so, the above-mentioned drawbacks are solved. That is, the present invention covers a cable by placing a pair of gutter-shaped semi-tubular members facing each other and fitting the male and female parts provided on the longitudinal side edges to each other to form a tube body. In the cable protection cover, a large number of tooth rows that mesh with each other are provided in the longitudinal direction on the fitting surface between the longitudinally continuous convex strip on the male part and the fitting groove on the female part, and each of the tooth rows The gist of the present invention is a cable protection cover characterized by comprising a gentle slope with a slope that gradually becomes thicker from the joint end toward the base, and a steep slope with a slope that rapidly becomes thinner. The present invention will be explained below based on the drawings. Figures 4 and 5 are cross-sectional views showing the condition before assembling the gutter-shaped semi-tubular material that forms part of the protective cover of one embodiment of the present invention, and Figure 6 shows the protection of the same embodiment after assembly. FIG. 3 is a cross-sectional view of the cover. In the figure, 1 and 1 are gutter-shaped semi-tubular members made of aluminum, copper, iron, titanium, lead, alloys thereof, or hard plastic, etc., and have the same shape and size. A male part 2 with a protrusion 5 and a female part 6 with a fitting groove 6 are provided. The semi-tubular members 1, 1 are used as a pair, facing each other in the longitudinal direction with the cable 4 in between, and are pressed in the direction of the arrow to form the protrusion 5 in the male part 2 and the fitting groove 6 in the female part 3. are fitted to form a tubular body, and then a filler 7 such as foamed polyurethane or cement is injected from one end of the tubular body to fill the gap between the semi-tubular members 1 and 1. A tensioned cable covered with a protective cover as shown in the cross-sectional view of FIG. 5 is constructed. In addition, in order to ensure the airtightness of the male and female mating surfaces, the protruding strip 5 on the male part 2 may be added as necessary.
An elastic body 8 such as natural or synthetic rubber is used as a sealing material in the fitting groove 6 of the root part and the female part 3. 7A and 7B are partially enlarged sectional views of the male part 2 and female part 3 provided on the side edges of the semi-tubular members 1 and 1, and FIG. 8 is a partially enlarged sectional view showing the state in which both are fitted. It is a diagram. As shown in the figure, a large number of chevron-shaped tooth rows 10 are provided on the side wall of the protrusion 5 in the male part 2, and each tooth row 10 extends from the fitting tip 5a of the protrusion 5 to the base (toward the root). A gentle slope 10a having a gradient that gradually becomes thicker in the cross section of the protruding strip 5 toward
A steep slope 10b with a slope that rapidly thins out.
It is equipped with On the other hand, the fitting groove 6 in the female part 3
A large number of chevron-shaped tooth rows 11 are also provided on the inside of the ridge 5 so as to mesh with the tooth rows 10 on the convex strip 5, and each of the tooth rows 11 extends from the fitting end 6a of the female portion 3 to the rear (the fitting groove 6). The cross section of the female portion 3 has a gentle slope 11a with a slope that gradually becomes thicker toward the outer surface of the female part 3, and a steep slope 11b that has a slope that gradually becomes thinner. That is, the protective cover of the present invention has the male part 2
As a result of configuring the protrusions 5 in the above and the tooth rows 10 and 11 provided in the fitting groove 6 in the female part 3 as described above, the male Since there is no flat surface perpendicular to the direction in which the part 2 and the female part 3 are fitted, the male and female parts can be fitted together easily, and the friction between the tops of the chevron-shaped tooth rows is alleviated. There is an advantage that damage caused to the fitting surface as shown in FIG. 3 can be avoided. FIG. 9 shows a partially enlarged sectional view of each row of teeth 10 provided on the side wall of the protruding strip 5 in the male part 2 and each row of teeth provided inside the fitting groove in the female part 3. Among each chevron-shaped tooth row, a gentle slope 10a forming the tooth row 10
and the front angle θa between the plane X that is perpendicular to the direction in which the male and female parts fit together (indicated by an arrow; the same applies hereinafter), and the gentle slope 11a forming each tooth row 11 that is perpendicular to the direction in which the male and female parts fit together. The front angle θb formed with the plane X is equal. Also, the back surface angle θc formed by the steep slope 10b forming each tooth row 10 and a plane perpendicular to the direction in which the male and female parts fit together, and the angle θc between the steep slope 11b forming each tooth row 11 and the plane perpendicular to the direction in which the male and female parts fit together. The back surface angle θd formed with the plane X is formed to be equal. Therefore, in order to reduce the fitting press load of the semi-tubular members 1 and 1 and ensure the pressure resistance against filling with the filler, the front angles θa and θb should be in the range of 40 to 60 degrees, and the back angles θc and θd is 10
A range of ~20° is preferred. FIG. 10 is a partially enlarged sectional view of another example different from the tooth rows 10 and 11 in FIG.
A flat surface in the direction parallel to the mating direction at the tip of 1
An example in which 0c and 11c are provided is shown. With such a structure, the pressing load when the male and female parts are fitted is further reduced, and the strain between the tooth rows 10 and 11 is reduced, which has the effect of reducing damage. As described above, the cable protection cover of the present invention is a tube body in which a pair of gutter-shaped semi-tubular members of the same shape and size are engaged with male and female fitting parts provided on the longitudinal side edges, Furthermore, it has a structure in which the mating surfaces of the male and female mating parts are provided with tooth rows that mesh with each other with gentle slopes and steep slopes, and it has the following advantages, making it suitable for installing suspension cables of cable-stayed bridges. It is extremely useful. 1 The material of the tube body is made of aluminum, copper, titanium, lead, or their alloys, so it has excellent corrosion resistance.
It has excellent weather resistance and has a long lifespan, making it ideal as a cable protection cover on bridges. Of course, the aesthetic appearance lasts for a long time and is easy to maintain. 2 Unlike conventional seamless tube cable protection covers, there is no need to pass the cable through the cable before it is stretched, and the male and female mating parts on both sides of the semi-tubular material are removed after the cable is stretched. Since the structure is designed to lock cables, there is no need for special consideration for cable covering during bridge construction work, and construction is easy. 3. The pressing load when fitting the semi-tubular members together is small, and the fitting pressing device only needs to have a small capacity.
Work is easy and installation costs can be reduced. 4. Since the pressure resistance against filling with the filler material is improved, the semi-tubular material can be made thinner and lighter than conventionally known materials. Next, the performance of the cable protection cover of the present invention will be explained using an experimental example. Example Material is aluminum alloy extruded shape A6063S-T5
This book consists of two semi-tubular materials shown in FIG. 4, each having a male part and a female part shown in FIG. Five test samples consisting of the invented cable protection cover were prepared. On the other hand, two semi-tubular members shown in FIG. 1 made of the same material and equipped with a male part and a female part shown in FIG. Five comparison samples were made from conventional cable protection covers. The fitting press load of all the test specimens when fitting the semi-tubular materials to form a pipe body and sealing the fitted pipe bodies in the longitudinal direction, the present invention product 2
Test Piece and Comparative Product 1 The pressure strength of the test piece when pressurized with water pressure was measured by experiment. The results are shown in Table 1.
【表】【table】
【表】
以上の結果から明らかなとおり、本考案品の方
が比較例品よりも嵌合押圧荷重が低いにもかかわ
らず、耐圧強度は比較例品よりも1.54倍以上
（18.5／12.0＝1.5，＞2.0／12.0＝＞1.67）高い。この
こと
は、本考案品の雌雄嵌合面における歯列の方が比
較例品の雌雄嵌合面における鋸歯状の山形突条の
ものよりも、小さな嵌合押圧荷重での係止によつ
てより気密かつ、より強固な係止性能が得られて
いることを示すものである。[Table] As is clear from the above results, although the product of the present invention has a lower fitting pressure load than the comparative example product, its pressure resistance is more than 1.54 times that of the comparative example product (18.5/12.0 = 1.5 , >2.0/12.0=>1.67) High. This indicates that the tooth row on the male and female mating surfaces of the product of the present invention is able to lock with a smaller mating pressing load than the serrated chevron protrusions on the male and female mating surfaces of the comparative example product. This shows that more airtight and stronger locking performance is achieved.
第１図は従来のケーブル保護カバーの断面図、
第２図、および第３図は、第１図のケーブル保護
カバーにおける雌雄嵌合部の嵌合状態を示す部分
拡大断面図、第４図および第５図は本考案のケー
ブル保護カバーの１実施例の組立て前の断面図、
第６図は同例の組立て後における断面図、第７図
および第８図は同例における雌雄嵌合部の嵌合状
態を示す部分拡大断面図、第９図は、第７図にお
ける歯列の部分拡大断面図、第１０図は、歯列の
他の例を示す部分拡大断面図である。
１……半管状材、２……雄部、３……雌部、４
……ケーブル、５……凸条、６……嵌合溝、７…
…充填材、８……弾性体、１０……歯列、１０ａ
……緩斜面、１０ｂ……急斜面。
Figure 1 is a cross-sectional view of a conventional cable protection cover.
2 and 3 are partially enlarged sectional views showing the fitted state of the male and female fitting parts in the cable protection cover of FIG. 1, and FIGS. 4 and 5 are one embodiment of the cable protection cover of the present invention. Example cross-sectional view before assembly,
Fig. 6 is a sectional view of the same example after assembly, Figs. 7 and 8 are partially enlarged sectional views showing the fitted state of the male and female fitting parts in the same example, and Fig. 9 is the tooth arrangement in Fig. 7. FIG. 10 is a partially enlarged sectional view showing another example of the tooth arrangement. 1... Semi-tubular material, 2... Male part, 3... Female part, 4
... Cable, 5 ... Protrusion, 6 ... Fitting groove, 7 ...
...Filling material, 8...Elastic body, 10...Tooth row, 10a
...gentle slope, 10b...steep slope.
Claims (1)
方向の側縁にそれぞれ設けた雄部および雌部を互
いに嵌合させ、管体を形成させることにより、ケ
ーブルを被覆するケーブル保護カバーにおいて、
雄部における長手方向に連続する凸条と雌部にお
ける嵌合溝との嵌合面に、互いに噛み合う多数の
歯列を長手方向に設け、且つ、該各歯列は、嵌合
先端から元部に向けて漸次肉厚となる勾配を持つ
緩斜面と急速に肉薄となる勾配を持つ急斜面を備
えてなることを特徴とするケーブル保護カバー。 In a cable protection cover that covers a cable, a pair of gutter-shaped semi-tubular members are placed opposite each other, and the male and female parts provided on the longitudinal side edges are fitted into each other to form a tube body. ,
A large number of tooth rows that mesh with each other are provided in the longitudinal direction on the mating surface between the longitudinally continuous convex strip on the male part and the mating groove on the female part, and each tooth row extends from the mating tip to the base part. A cable protection cover characterized by comprising a gentle slope with a slope that gradually becomes thicker and a steep slope with a slope that rapidly becomes thinner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983079696U JPS59183904U (en) | 1983-05-25 | 1983-05-25 | Cable protection cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983079696U JPS59183904U (en) | 1983-05-25 | 1983-05-25 | Cable protection cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59183904U JPS59183904U (en) | 1984-12-07 |
| JPH0238960Y2 true JPH0238960Y2 (en) | 1990-10-19 |
Family
ID=30209692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983079696U Granted JPS59183904U (en) | 1983-05-25 | 1983-05-25 | Cable protection cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59183904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362065A (en) * | 2013-08-02 | 2013-10-23 | 柳州欧维姆机械股份有限公司 | Buckling stainless steel protective sleeve, multi-section spliced stainless steel protective sleeve and manufacturing method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2897623B1 (en) * | 2006-02-17 | 2008-04-11 | Eiffage Tp Sa | DEVICE FOR PROTECTING THE FIRE OF A CABLE OR THE LIKE OF ART OR CIVIL ENGINEERING |
| JP5843554B2 (en) * | 2011-10-03 | 2016-01-13 | 東京ファブリック工業株式会社 | Cable cover |
| JP6147709B2 (en) * | 2014-09-08 | 2017-06-14 | 日本電信電話株式会社 | Socket for repairing bridge protection cable bridge |
-
1983
- 1983-05-25 JP JP1983079696U patent/JPS59183904U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362065A (en) * | 2013-08-02 | 2013-10-23 | 柳州欧维姆机械股份有限公司 | Buckling stainless steel protective sleeve, multi-section spliced stainless steel protective sleeve and manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59183904U (en) | 1984-12-07 |
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