JPH0243704Y2 - - Google Patents
Info
- Publication number
- JPH0243704Y2 JPH0243704Y2 JP1984041180U JP4118084U JPH0243704Y2 JP H0243704 Y2 JPH0243704 Y2 JP H0243704Y2 JP 1984041180 U JP1984041180 U JP 1984041180U JP 4118084 U JP4118084 U JP 4118084U JP H0243704 Y2 JPH0243704 Y2 JP H0243704Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- heat
- cut
- shrinkable
- recess
- 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
- 239000000463 material Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
Landscapes
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
[考案の背景]
本考案は、加熱収縮性チユーブ、特に種々のパ
イプやケーブル等の被覆に用いられる加熱収縮性
チユーブに関する。[Detailed Description of the Invention] [Background of the Invention] The present invention relates to a heat-shrinkable tube, particularly a heat-shrinkable tube used for covering various pipes, cables, and the like.
ゴム、プラスチツク等よりなる加熱収縮性チユ
ーブは、取付け作業が容易でしかも防水性が優れ
ていることから、パイプ類の被覆、ケーブルの修
復或いは接続等に広く用いられている。 Heat-shrinkable tubes made of rubber, plastic, etc. are easy to install and have excellent waterproof properties, so they are widely used for covering pipes, repairing or connecting cables, etc.
ところで、これまでの加熱収縮性チユーブは、
一般的には外径が小さく、肉厚も2mm以下で比較
的薄かつたので、鋏、ナイフ、カツター等で容易
に所望の長さにしかも軸方向に対してほぼ直角に
切断することができた。また、それに使われる切
断専用の機械も開発されている。 By the way, conventional heat-shrinkable tubes are
Generally, the outside diameter is small and the wall thickness is relatively thin, less than 2 mm, so it can be easily cut to the desired length with scissors, knives, cutters, etc., and at almost right angles to the axial direction. Ta. Additionally, specialized cutting machines have also been developed.
しかしながら、最近、用途によつては大口径で
且つ肉厚も2mm以上あり、更に材質が硬質のプラ
スチツクで出来ている加熱収縮性チユーブが用い
られるようになり、その切断が困難になつてい
る。特に、現場作業では手工具しか使えないため
に、チユーブを直角に且つ切断面をきれいに切断
するのが困難である。 However, recently, depending on the application, heat-shrinkable tubes that have a large diameter, a wall thickness of 2 mm or more, and are made of hard plastic have come to be used, making it difficult to cut them. In particular, since only hand tools can be used in field work, it is difficult to cut the tube at right angles and with a clean cut surface.
[考案の目的]
本考案の第一の目的は、特に現場作業等におい
ても容易に切断できる加熱収縮性チユーブを提供
することにあり、第二の目的は、マンホール、地
下室等の暗い作業場でも切断部が容易に確認で
き、切り込みまたは凹部内に不純物、汚損物等が
入るのを防止できる加熱収縮性チユーブを提供す
ることにある。[Purpose of the invention] The first purpose of the present invention is to provide a heat-shrinkable tube that can be easily cut, especially in field work, etc., and the second purpose is to provide a heat-shrinkable tube that can be cut easily even in dark workplaces such as manholes and basements. To provide a heat-shrinkable tube whose parts can be easily checked and which can prevent impurities, dirt, etc. from entering into notches or recesses.
[考案の概要]
本考案の要旨は、加熱収縮性チユーブの外周
に、任意の間隔で円周にわたる切り込みまたは凹
部を設け、更に該切り込みまたは凹部内に有色パ
テ状物を充填した点にある。[Summary of the invention] The gist of the invention is that cuts or recesses extending over the circumference are provided at arbitrary intervals on the outer periphery of a heat-shrinkable tube, and furthermore, the cuts or recesses are filled with a colored putty-like material.
[実施例] 次に、本考案を図面を参照しつつ説明する。[Example] Next, the present invention will be explained with reference to the drawings.
第1図は、本考案の加熱収縮性チユーブの一実
施例を示す断面図である。 FIG. 1 is a sectional view showing an embodiment of the heat-shrinkable tube of the present invention.
図示するように、加熱収縮性チユーブ1の外周
に、任意の間隔で切り込みまたは凹部2を円周に
わたりチユーブの長さ方向に直交するように設け
る。 As shown in the figure, cuts or recesses 2 are provided on the outer periphery of a heat-shrinkable tube 1 at arbitrary intervals so as to be perpendicular to the length direction of the tube.
凹部2の深さは、円周方向に直角に切断するた
めのガイドになればよく、任意であるが、材質の
軟らかいゴム系のチユーブでは浅く、プラスチツ
ク系では深くすることが好ましい。また、凹部2
の中は、ナイフ等の切断刃先が挿入できる範囲の
ごく狭いものでも目的を達せられる。凹部2先端
は、クラツクの発生を防止するため丸みを付ける
ことが好ましい。 The depth of the recess 2 is arbitrary as long as it serves as a guide for cutting perpendicular to the circumferential direction, but it is preferable that it be shallow for a tube made of soft rubber and deep for a tube made of plastic. In addition, the recess 2
Even if the cutting edge of a knife or the like can be inserted within a very narrow area, the purpose can be achieved. The tip of the recess 2 is preferably rounded to prevent cracks from occurring.
加熱収縮性チユーブ1に切り込みまたは凹みを
設けるには、例えば次のような方法が用いられ
る。 For example, the following method is used to provide a cut or a recess in the heat-shrinkable tube 1.
一つは、拡大前のチユーブに機械的な切断、放
電加工、または金型等により凹みを設けてからチ
ユーブを拡大してよいし、他の方法として、拡大
時にチユーブの外型に突起を設け、拡大時の圧力
でチユーブ外周面を押しつけて凹みを形成する。
前者は、変形し難いゴム系チユーブ、後者は、変
形し易いプラスチツク系チユーブに適している。 One method is to expand the tube by creating a dent in the tube before expansion by mechanical cutting, electrical discharge machining, or a mold, and another method is to provide a protrusion on the outer mold of the tube during expansion. , the pressure at the time of expansion presses against the outer circumferential surface of the tube to form a depression.
The former is suitable for rubber tubes that are difficult to deform, and the latter is suitable for plastic tubes that are easy to deform.
大口径、厚肉の加熱収縮性チユーブの現場切断
は、これらの凹み部をガイドにナイフ、鋏等の手
工具で精度よく簡易に切断することができる。 Large-diameter, thick-walled heat-shrinkable tubes can be easily and accurately cut on-site using hand tools such as knives and scissors using these recesses as guides.
また、凹部2内には、例えば白色シリコン系パ
テ状物3が充填されている。こうしておけば、マ
ンホール、地下室等の暗い作業場でも切断部が容
易に確認でき、しかも凹部2内に不純物、汚損物
等が侵入するのを防止でき、その上凹部2内面に
おけるボイドの形成も抑止できる。 Further, the recess 2 is filled with, for example, a white silicone putty-like material 3. By doing this, the cut portion can be easily confirmed even in dark workplaces such as manholes and basements, and it is also possible to prevent impurities, dirt, etc. from entering the recess 2, and furthermore, it is possible to prevent the formation of voids on the inner surface of the recess 2. .
第2図は、本考案の他の実施例にして、特定長
さの短尺チユーブの例を示す。この場合、両端部
に夫々同一寸法の凹部2を複数個設け、被覆対象
物の長さに合わせて両端を切断できるように構成
してなる。接続点を中央にして、左右対象の形状
を有するパイプ接続部を被覆するような場合に好
適である。 FIG. 2 shows an example of a short tube of a specific length as another embodiment of the present invention. In this case, a plurality of recesses 2 of the same size are provided at both ends, and both ends can be cut to match the length of the object to be coated. This method is suitable for covering pipe connections that are symmetrical in shape with the connection point at the center.
本考案の加熱収縮性チユーブをプラスチツクで
作る場合、チユーブ拡大時の外型内表面に文字、
記号等を形成しておけば、チユーブの表面に文字
や記号を容易に形成することができ、チユーブの
材質管理や分類を容易、確実に行うことができ
る。また、所望によりチユーブの表面に印刷等を
施してもよい。 When the heat-shrinkable tube of this invention is made of plastic, there are letters on the inner surface of the outer mold when the tube is expanded.
If symbols and the like are formed, characters and symbols can be easily formed on the surface of the tube, and the material management and classification of the tube can be easily and reliably performed. Further, if desired, printing or the like may be applied to the surface of the tube.
[考案の効果]
本考案によるときは、チユーブの周りに設けら
れた凹部が切断時のガイドになり、またその部分
のチユーブの厚さが薄くなるので大口径、厚肉の
チユーブでも手工具で容易に切断することができ
る。[Effects of the invention] According to the invention, the recess provided around the tube serves as a guide during cutting, and the thickness of the tube in that area becomes thinner, so even large-diameter, thick-walled tubes can be cut with hand tools. Can be easily cut.
また、凹部をチユーブの拡大時に形成すれば、
収縮時に復元するために、被覆した場合のチユー
ブに凹みが残つていたとしても被覆後加熱収縮さ
せるので機械的強度が低下する心配はない。 Also, if the recess is formed when the tube is expanded,
Since it restores its original shape when it shrinks, even if a dent remains in the tube when it is coated, it will be heated and shrunk after being coated, so there is no need to worry about the mechanical strength decreasing.
また、凹部内には有色パテ状物が充填されてい
るので、暗い作業場でも切断部が容易に確認でき
る。 Furthermore, since the recess is filled with a colored putty-like material, the cut portion can be easily seen even in a dark workplace.
さらにまた、凹部内に不純物、汚損物等が入る
のを防止でき、その上凹部内面におけるボイドの
形成も抑止でき、このため耐劣化特性、電気的特
性に優れている。 Furthermore, it is possible to prevent impurities, contaminants, etc. from entering the recessed portion, and furthermore, the formation of voids on the inner surface of the recessed portion can be suppressed, thereby providing excellent deterioration resistance and electrical characteristics.
第1図及び第2図は夫々本考案の加熱収縮性チ
ユーブの実施例を示す断面図である。
1:チユーブ、2:凹み、3:有色パテ状物。
1 and 2 are cross-sectional views showing embodiments of the heat-shrinkable tube of the present invention, respectively. 1: tube, 2: dent, 3: colored putty-like material.
Claims (1)
周にわたる切り込みまたは凹部を設け、更に該切
り込みまたは凹部内に有色パテ状物を充填したこ
とを特徴とする加熱収縮性チユーブ。 1. A heat-shrinkable tube, characterized in that cuts or recesses extending over the circumference are provided at arbitrary intervals on the outer periphery of the heat-shrinkable tube, and further, the cuts or recesses are filled with a colored putty-like material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4118084U JPS60152419U (en) | 1984-03-22 | 1984-03-22 | heat shrinkable tubing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4118084U JPS60152419U (en) | 1984-03-22 | 1984-03-22 | heat shrinkable tubing |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60152419U JPS60152419U (en) | 1985-10-11 |
JPH0243704Y2 true JPH0243704Y2 (en) | 1990-11-20 |
Family
ID=30550761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4118084U Granted JPS60152419U (en) | 1984-03-22 | 1984-03-22 | heat shrinkable tubing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60152419U (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0438983Y2 (en) * | 1986-05-15 | 1992-09-11 | ||
JP5782990B2 (en) * | 2011-10-28 | 2015-09-24 | 住友電装株式会社 | Grommet and wire harness |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54118472A (en) * | 1978-03-07 | 1979-09-13 | Mitsubishi Plastics Ind Ltd | Manufacture of inner grooved tube |
-
1984
- 1984-03-22 JP JP4118084U patent/JPS60152419U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54118472A (en) * | 1978-03-07 | 1979-09-13 | Mitsubishi Plastics Ind Ltd | Manufacture of inner grooved tube |
Also Published As
Publication number | Publication date |
---|---|
JPS60152419U (en) | 1985-10-11 |
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