JPH0245242Y2 - - Google Patents
Info
- Publication number
- JPH0245242Y2 JPH0245242Y2 JP4559986U JP4559986U JPH0245242Y2 JP H0245242 Y2 JPH0245242 Y2 JP H0245242Y2 JP 4559986 U JP4559986 U JP 4559986U JP 4559986 U JP4559986 U JP 4559986U JP H0245242 Y2 JPH0245242 Y2 JP H0245242Y2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- tanned cowhide
- cable
- chrome
- capstan
- 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
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 claims description 7
- 229920002647 polyamide Polymers 0.000 claims description 7
- 229920003002 synthetic resin Polymers 0.000 claims description 7
- 239000000057 synthetic resin Substances 0.000 claims description 7
- 239000010410 layer Substances 0.000 description 13
- 239000011162 core material Substances 0.000 description 8
- 238000005452 bending Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- -1 wires Substances 0.000 description 1
Landscapes
- Forwarding And Storing Of Filamentary Material (AREA)
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】
（考案の利用分野）
この考案は、電線にゴム又は合成樹脂などの被
覆を施されたケーブルを製作する工程において、
ケーブルを牽引するためのキヤプスタン用ベルト
に関する。[Detailed description of the invention] (Field of application of the invention) This invention is used in the process of manufacturing cables in which electric wires are coated with rubber or synthetic resin.
This invention relates to a capstan belt for towing cables.
（配景）
従来から、電力ケーブル、海底電線ケーブルな
どのケーブルを製作する過程で、第２図に示すよ
うな、駆動ドラムの周囲に圧接する皮製のキヤプ
スタン用ベルトが使用されている。このベルト１
は、４個一組の従動プーリー１０により支えら
れ、その外面が駆動ドラム１１により移動せしめ
られるケーブル１２の表面側に圧接して該ケーブ
ルを強くドラム１１側に押し付ける。従つて、本
ベルトは重いケーブル１２に強い摩擦力与える必
要から、幅の割に極めて大きな張力が要求され
る。このため、普通第３図（第２図Ｘ−Ｘ断面）
に示す通り、一軸延伸したポリアミドシートから
なる芯材２の両面にクロム鞣牛皮３，３を貼着し
てなるベルト１Ｂが使用されている。(Scenery) Conventionally, in the process of manufacturing cables such as power cables and submarine cables, a leather capstan belt, as shown in Figure 2, has been used that presses around the drive drum. This belt 1
is supported by a set of four driven pulleys 10, and its outer surface is pressed against the surface side of the cable 12 that is moved by the drive drum 11, thereby strongly pressing the cable against the drum 11 side. Therefore, this belt needs to apply a strong frictional force to the heavy cable 12, and therefore requires an extremely large tension considering its width. For this reason, normally Fig. 3 (Fig. 2 XX cross section)
As shown in FIG. 1, a belt 1B is used, which is made of a core material 2 made of a uniaxially stretched polyamide sheet and chrome tanned cowhide 3, 3 attached to both sides of the core material 2.
（従来の技術の問題点）
しかしながら、このベルト１Ｂには極めて大き
な張力が作用する。この張力は、延伸ポリアミド
芯材２にとつて充分耐えうるものであるが、延伸
を受けていないベルトの幅方向においては張力に
負けて変形し易い。この結果、ケーブル１２に接
する部分においては、例えば第２図、線Ｙ−Ｙに
相当する切面図を示す第４図に示される如く、ベ
ルト１Ｂが弧状に湾曲するが、ケーブル１２に接
しない部分では、ベルト１Ｂは、同図、線Ｘ−Ｘ
のような扁平な状態となる。この結果、本ベルト
は、ドラム１１の回転、即ちベルト１Ｂの移動に
つれ絶えず屈曲と伸張の繰り返しを受け、比較的
早期に縦割れを発生して使用に耐えなくなる。そ
こで以上の問題点を改良せんがため、ポリアミド
芯材２の両面に帆布層４，４を介してゴム層
（５，５′；ケーブル当接側のゴム層５′の方が厚
い。）を貼着したもの（１Ｃ；第５図）や、或は
ゴム層５′に更に円弧状の窪み６を付したもの
（１Ｄ；第６図）などが提案されているが、いず
れも第３図乃至第４図のものに比し充分な改善効
果を挙げるに至らない。特に、最後者の１Ｄは、
一見合理的に見えながら、対象ケーブルの曲率に
より効果に差異を生じ、最適の結果を得るためベ
ルト自体を交換する必要のあることは実用上見逃
せない問題である。(Problems with the Prior Art) However, an extremely large tension acts on the belt 1B. Although this tension can be sufficiently withstood by the stretched polyamide core material 2, in the width direction of the belt which has not been stretched, it easily succumbs to the tension and deforms. As a result, the belt 1B is curved in an arc shape in the portion where it comes in contact with the cable 12, as shown in FIG. 2 and FIG. In this figure, belt 1B is connected to line X-X in the same figure.
It will be in a flat state like this. As a result, this belt is constantly subjected to repeated bending and stretching as the drum 11 rotates, that is, as the belt 1B moves, and longitudinal cracks occur relatively early, making it unusable. Therefore, in order to improve the above problems, rubber layers (5, 5'; the rubber layer 5' on the cable contact side is thicker) are applied to both sides of the polyamide core material 2 through canvas layers 4, 4. The rubber layer 5' has an arc-shaped recess 6 (1D; Fig. 6), etc., but both of them are shown in Fig. 3. A sufficient improvement effect cannot be achieved compared to those shown in FIGS. 4 to 4. In particular, the last one, 1D,
Although this seems reasonable at first glance, it is a problem that cannot be overlooked in practice, as the effectiveness varies depending on the curvature of the target cable, and it is necessary to replace the belt itself to obtain the optimal result.
（考案の目的）
本考案は、耐用命数が長く、しかも対象ケーブ
ルの曲率が相違しても交換する必要のないキヤプ
スタン用ベルトを提供するのを目的とする。(Purpose of the invention) An object of the invention is to provide a capstan belt that has a long service life and does not need to be replaced even if the curvature of the target cable differs.
（考案の構成）
本考案者は、以上の目的を達成せんがため種々
思索とを試みた結果、”対屈曲性についてはク
ロム鞣牛皮に勝る材料がないこと、しかしなが
ら、従来から賞用されているクロム鞣牛皮は、
柔軟で、しかもケーブルの被覆材料であるゴムや
合成樹脂に対し大きな摩擦係数を示すが、柔軟に
過ぎること、従つて、充分な張力を加えてケー
ブルに圧接させたとき、ベルトの幅方向における
過度の屈曲を阻止できないこと、そしてこの短手
方向における過度の屈曲がベルトの寿命を短縮さ
せる主因であること、 それ故、ケーブルとの
当接面にクロム鞣牛皮に勝る耐屈撓性材料を使用
することが、問題の焦点であろう”との結論に到
達した。(Structure of the invention) As a result of various thoughts and attempts to achieve the above purpose, the inventor of the present invention found that there is no material superior to chrome tanned cowhide in terms of bendability. The chrome tanned cowhide is
The belt is flexible and exhibits a large coefficient of friction against the rubber and synthetic resin that is used to cover the cable. However, excessive bending in the transverse direction is the main cause of shortening the belt's lifespan.Therefore, a material that is more flexible than chrome-tanned cowhide is used for the contact surface with the cable. "The focus of the problem is to do so."
そこで、クロム鞣牛皮に勝る硬さを持ち、しか
も摩擦性及び耐屈撓性において同等の材料につい
て探索を進めたところ、タンニン鞣牛皮が目的上
好適であることを見出した。即ち、タンニン鞣牛
皮は、クロム鞣牛皮に比べて耐屈撓性においては
殆ど同等であるのみでなく、ケーブルに対する摩
擦性においても遜色がなく、しかも腰が強いた
め、過度に屈撓する恐れがないので、これを使用
したベルトは優れたキヤプスタンベルトとなりう
る可能性がある。 Therefore, we searched for a material that has a hardness superior to that of chrome-tanned cowhide, but is also equivalent in terms of abrasion resistance and bending resistance, and found that tanned cowhide is suitable for the purpose. In other words, tannin-tanned cowhide not only has almost the same bending resistance as chrome-tanned cowhide, but also has comparable friction against cables, and is also strong, so there is a risk of excessive bending. Therefore, a belt using this has the potential to be an excellent capstan belt.
そこで、以上の着想に基づいて実際にタンニン
鞣牛皮とクロム鞣牛皮とを表裏両層とするベルト
を試作し、試験したところ、従来のクロム鞣牛皮
とを表裏両層とするベルトに比べて三倍以上の耐
久性が得られ、その有効性が確認された。 Based on the above idea, we actually produced a prototype belt with both the front and back layers of tannin-tanned cowhide and chrome-tanned cowhide, and tested it, and found that it was significantly lower than a conventional belt with chrome-tanned cowhide on both the front and back layers. The durability was more than doubled, and its effectiveness was confirmed.
本考案に係るキヤプスタン用ベルトは、以上の
構想に基づくもので、その要旨は、高強度合成樹
脂製シートの一面にクロム鞣牛皮が、他面にタン
ニン鞣牛皮が夫々粘着されていることを特徴とす
るキヤプスタン用ベルトに存する。 The capstan belt according to the present invention is based on the above concept, and its gist is that chrome-tanned cowhide is adhered to one side of a high-strength synthetic resin sheet, and tannin-tanned cowhide is adhered to the other side. This is a capstan belt.
ここに、ドラム２に当接する側の面に貼られる
タンニン鞣牛皮としては厚さ３〜７mm程度のもの
が、またプーリー１０に接する側のクロム鞣牛皮
としては厚さ１〜３mm程度のものが、更に芯材の
延伸合成樹脂シートとしては厚さ１〜４mm程度の
ものが好んで使用される。なお芯材の合成樹脂シ
ートとしては、単層又は積層ポリアミドシートが
最も一般的であるが、必要に応じ、芳香族ポリア
ミド若しくはポリアミド性シート乃至成層シート
間にカーボン繊維、ワイヤ、ガラス繊維又はシリ
コーン繊維等の高抗張力糸条が縦強度補強材とし
て介在せしめられていてもよい。 Here, the tanned cowhide that is pasted on the side that comes into contact with the drum 2 has a thickness of about 3 to 7 mm, and the chrome tanned cowhide that is pasted on the side that comes into contact with the pulley 10 has a thickness of about 1 to 3 mm. Further, as the stretched synthetic resin sheet for the core material, a sheet having a thickness of about 1 to 4 mm is preferably used. The synthetic resin sheet for the core material is most commonly a single-layer or laminated polyamide sheet, but if necessary, aromatic polyamide or polyamide sheets or carbon fibers, wires, glass fibers, or silicone fibers may be added between the laminated sheets. A high tensile strength yarn such as the following may be interposed as a longitudinal strength reinforcing material.
（作用）
本考案に係るキヤプスタン用ベルトでは、駆動
ドラム側（ケーブル当接側）のタンニン鞣牛皮の
曲げ強度が大であるため、強い張力を受けても過
度に湾曲することなくケーブルに圧接する。この
圧接状態は第４図の場合に比べて線接触に近い
が、それだけケーブルに対する摩擦力が増大する
から、高速度でケーブルが送られてもスリツプを
生じにくい。加えて、ベルトに生じる湾曲の程度
は、第３図〜第４図の公知ベルトに比べて遥かに
小さく、このため、ベルトの寿命が従来品に比べ
て著しく延長する。(Function) In the capstan belt according to the present invention, the bending strength of the tanned cowhide on the drive drum side (cable contact side) is high, so even when subjected to strong tension, it does not bend excessively and is pressed against the cable. . This pressure contact state is closer to line contact than the case shown in FIG. 4, but since the frictional force against the cable increases accordingly, slips are less likely to occur even when the cable is fed at high speed. In addition, the degree of curvature that occurs in the belt is much smaller than in the known belts of FIGS. 3-4, thereby significantly extending the life of the belt compared to conventional products.
（実施例）
以下、実施例により考案具体化の一例を説明す
るが、本例示は当然説明用のものであつて、考案
精神の限定を意図したものではない。(Example) Hereinafter, an example of the embodiment of the invention will be explained with reference to an example, but this example is of course for illustrative purposes and is not intended to limit the spirit of the invention.
第１図は、本考案に係るキヤプスタン用ベルト
１Ｄの短手方向に沿う破断横断面図である。 FIG. 1 is a broken cross-sectional view along the transverse direction of a capstan belt 1D according to the present invention.
図面において、本案ベルト１は、約２mmのポリ
アミドシート製芯材２の一面に厚さ約２mmのクロ
ム鞣牛皮からなる表層３が、他面に厚さ約５mmの
タンニン鞣牛皮からなる裏層７が夫々貼着されて
いる。このベルトは、裏層７がケーブル１２に当
接するようにして使用されるが、該裏層７の作用
によりケーブル当接時の過湾曲が阻止されるの
で、従来品に比べ３倍以上の長寿命を有する。 In the drawing, the belt 1 of the present invention has a surface layer 3 made of chrome tanned cowhide with a thickness of about 2mm on one side of a core material 2 made of a polyamide sheet of about 2mm, and a back layer 7 made of tanned cowhide with a thickness of about 5mm on the other side. are attached to each. This belt is used with the backing layer 7 in contact with the cable 12, and the action of the backing layer 7 prevents excessive curving when the cable comes into contact, so the belt is three times longer than conventional belts. Has a long lifespan.
（効果）
以上説明した通り、本考案に係るキヤプスタン
用ベルトは、従来の同種ベルトに比し遥かに長い
寿命を有することにより、ケーブル産業に対し利
益をもたらす。(Effects) As explained above, the capstan belt according to the present invention has a much longer lifespan than conventional belts of the same type, thereby providing benefits to the cable industry.
第１図は、本考案に係るキヤプスタン用ベルト
の幅方向に沿う破断横断面図、第２図は、ケーブ
ル送り装置の概略平面図、第３図は、公知のキヤ
プスタン用ベルトの幅方向に沿う横断面図（第２
図、線Ｘ−Ｘ）、第４図は、第２図、線Ｙ−Ｙに
沿う断面図、第５図及び第６図は、夫々異なつた
公知のキヤプスタン用ベルトの幅方向に沿う横断
面図である。各図中の符号の意味は以下の通り：
―
１Ａ……本案キヤプスタン用ベルト、１Ｂ〜１
Ｄ……公知キヤプスタン用ベルト、２……１Ａ〜
１Ｄの芯材、３……１Ａ〜１Ｂのクロム鞣牛皮
層、４……１Ｃ〜１Ｄの帆布層、５，５′……１
Ｃ〜１Ｄのゴム層、６……５の窪み、７……１Ａ
のタンニン鞣牛皮層、１０……従動プーリー、１
１……駆動ドラム、１２……ケーブル。
Fig. 1 is a cross-sectional view taken along the width direction of a capstan belt according to the present invention, Fig. 2 is a schematic plan view of the cable feeding device, and Fig. 3 is a cross-sectional view taken along the width direction of a known capstan belt. Cross-sectional view (second
Figure 4 is a cross-sectional view taken along line Y-Y in Figure 2, and Figures 5 and 6 are cross-sectional views taken along the width direction of different known capstan belts. It is a diagram. The meaning of the symbols in each figure is as follows:
- 1A...Capstan belt, 1B~1
D...Known belt for capstan, 2...1A~
1D core material, 3...1A to 1B chrome tanned cowhide layer, 4...1C to 1D canvas layer, 5,5'...1
C to 1D rubber layer, 6...5 depression, 7...1A
tanned cowhide layer, 10...driven pulley, 1
1... Drive drum, 12... Cable.
Claims (1)
皮が、他面にタンニン鞣牛皮が夫々粘着されて
いることを特徴とするキヤプスタン用ベルト。 (2) 高強度合成樹脂製シートが、ポリアミド延伸
シートである実用新案登録請求の範囲第１項記
載のベルト。 (3) タンニン鞣牛皮が、クロム鞣牛皮に比べて厚
手である実用新案登録請求の範囲第１項記載の
ベルト。[Claims for Utility Model Registration] (1) A capstan belt characterized by having chrome tanned cowhide adhered to one side of a high-strength synthetic resin sheet and tanned cowhide adhered to the other side. (2) The belt according to claim 1, wherein the high-strength synthetic resin sheet is a stretched polyamide sheet. (3) The belt according to claim 1, wherein the tanned cowhide is thicker than the chrome-tanned cowhide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4559986U JPH0245242Y2 (en) | 1986-03-27 | 1986-03-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4559986U JPH0245242Y2 (en) | 1986-03-27 | 1986-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62176152U JPS62176152U (en) | 1987-11-09 |
| JPH0245242Y2 true JPH0245242Y2 (en) | 1990-11-30 |
Family
ID=30864480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4559986U Expired JPH0245242Y2 (en) | 1986-03-27 | 1986-03-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0245242Y2 (en) |
-
1986
- 1986-03-27 JP JP4559986U patent/JPH0245242Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62176152U (en) | 1987-11-09 |
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