【考案の詳細な説明】
本考案は柱上変圧器や避雷針等のアース線、又
は引込ケーブル等、電柱に沿つて付設される線類
を電柱に一体に抱縛して固定する電柱用締付ベル
トに関するものであつて、炭素工具鋼製のフラツ
トな芯材の外面にニトル係の接着剤の塗布加硫層
を設け、更にその外面をポリアミド樹脂により被
覆したことを要旨とするものである。[Detailed description of the invention] This invention is a clamping system for utility poles that integrally wraps and secures wires attached along the utility pole, such as ground wires such as pole-mounted transformers and lightning rods, or lead-in cables, to the utility pole. The invention relates to a belt, and the gist is that a vulcanized layer coated with a nitrile adhesive is provided on the outer surface of a flat core material made of carbon tool steel, and the outer surface is further coated with a polyamide resin.
従来この種のベルトとして提供されているもの
は、材質がステンレス鋼製で硬度が約Hv150程
度、更に厚さや幅は夫々0.3mm及び10mm程度のフ
ラツトな帯状体が一般的である。斯る従来品は、
一定寸法に切断する場合、材料の硬度がHv150程
度であつてペンチで簡単に切断できず作業に不便
であり、又、材料が電気の絶縁物で被覆されてい
ないので作業中に他の電線や電気機器等と接触す
るとシヨートして危険であり、又、帯状体の縁部
が鋭利なため作業員の手指を傷つけたりアース線
の被覆絶縁物を破損する虞れがあり、更に耐銹性
が無く耐塩水性も弱い等の種々の欠点がある。 Conventionally, belts of this kind are generally made of stainless steel and have a hardness of about Hv150, and are generally flat belts with a thickness and width of about 0.3 mm and 10 mm, respectively. Such conventional products are
When cutting to a certain size, the hardness of the material is about Hv150, so it cannot be cut easily with pliers, making it inconvenient to cut.Also, the material is not covered with electrical insulation, so it is difficult to cut it with other electrical wires or other wires during work. If it comes into contact with electrical equipment, it is dangerous to shoot, and the edges of the strip are sharp, so there is a risk of injuring workers' hands and fingers or damaging the insulation of the ground wire, and the rust resistance is poor. There are various drawbacks such as low resistance to salt water and low resistance to salt water.
本考案は斯る欠点の解消を目的とするのであつ
て、炭素工具鋼製のフラツトな芯材の外面をポリ
アミド樹脂により被覆して電柱用締付ベルトを得
るものである。 The purpose of the present invention is to eliminate such drawbacks, and to obtain a tightening belt for utility poles, the outer surface of a flat core material made of carbon tool steel is coated with polyamide resin.
図示せる実施例は、炭素工具鋼５種（SK5）製
でビツカースかたさHv240以上の幅10mm、厚さ
0.13mmのフラツトな芯材１の全周面にニトリル係
接着剤を5μ程度塗布して加熱加硫後ポリアミド
樹脂２を両面で0.4mm乃至0.5mmの厚さに全面被覆
し、製品の仕上寸法を厚さ0.5mm乃至0.65mm、幅
10.5mm乃至11.0mmの範囲に形成した電柱用締付ベ
ルト３を示したものである。当該電柱用締付ベル
ト３は基枠４と操作枠５が回動軸６によつて互い
に回動自在に枢着されて成る締付金具７に、その
一端を基枠４の係止孔８に貫通させた後折り曲げ
て係止すると共に他の一端を電柱に巻回した後、
回動軸６の中央スリツト９に挿入係止して巻き取
らせ電柱イ面にアース線ロ等を締め付けるもので
ある。 The illustrated example is made of carbon tool steel grade 5 (SK5), with a width of 10 mm and a thickness of Bitkers hardness of Hv240 or more.
Approximately 5 μm of nitrile adhesive is applied to the entire circumference of a 0.13 mm flat core material 1, and after heat vulcanization, polyamide resin 2 is coated on both sides to a thickness of 0.4 mm to 0.5 mm, and the finished dimensions of the product are determined. Thickness 0.5mm to 0.65mm, width
This figure shows a tightening belt 3 for utility poles formed in the range of 10.5 mm to 11.0 mm. The utility pole tightening belt 3 has one end attached to a locking hole 8 of the base frame 4, which is made up of a base frame 4 and an operation frame 5 that are rotatably connected to each other by a rotation shaft 6. After passing it through the pole, bend it and lock it, and wrap the other end around the pole.
It is inserted and locked into the center slit 9 of the rotation shaft 6, wound up, and tightened to the surface of the utility pole.
本考案電柱用締付ベルトは炭素工具鋼製のフラ
ツトな芯材の外面をポリアミド樹脂により被覆し
たので、ペンチで簡単に切断でき作業能率が向上
すること、ポリアミド樹脂により全面を被覆して
あるので絶縁性が高く感電等の事故の発生がなく
なること、手触りがソフトでありまた縁部の鋭利
さが覆われて手指を傷つける虞れがなくなり、
又、アース線等の損傷を防げること、表面のポリ
アミド樹脂被覆面は容易に微細な凹凸状にあるこ
とができ適当な摩擦が生じて締付効果が高まるこ
と、更に耐銹性及び耐塩水性に優れていること等
の諸々の効果が得られるものであり、加うるに本
考案に於ては芯材たる炭素工具鋼製とその表面の
ポリアミド樹脂層との間にニトリル係の接着剤の
塗布加硫層を介在させたのでこれによつてポリア
ミド層の芯材への被着を著しく確固とすることが
できる等の利点がある。 The tightening belt for utility poles of this invention has a flat core material made of carbon tool steel, and the outer surface is coated with polyamide resin, so it can be easily cut with pliers, improving work efficiency, and the entire surface is coated with polyamide resin. It has high insulation properties, which eliminates accidents such as electric shock, and it is soft to the touch, and the sharp edges are covered, eliminating the risk of injury to hands and fingers.
In addition, it prevents damage to the ground wire, etc., the polyamide resin coating surface can easily have minute irregularities, creating appropriate friction and increasing the tightening effect, and it also has rust resistance and salt water resistance. In addition, in the present invention, a nitrile-based adhesive is applied between the carbon tool steel core and the polyamide resin layer on the surface. The interposition of the vulcanized layer has the advantage that the adhesion of the polyamide layer to the core material can be made extremely firm.
【図面の簡単な説明】[Brief explanation of the drawing]
図は本考案の実施例を示すものであつて、第１
図は使用状態の斜視図、第２図は締付金具による
締付過程を示す縦断面図、第３図はベルト本体の
拡大横断面図である。
１……芯材、２……ポリアミド樹脂、３……電
柱用締付ベルト、４……基枠、５……操作枠、６
……回動軸、７……締付金具、８……係止孔、９
……スリツト、イ……電柱、ロ……アース線。
The figure shows an embodiment of the present invention.
The figure is a perspective view of the belt in use, FIG. 2 is a vertical sectional view showing the tightening process using the tightening fitting, and FIG. 3 is an enlarged cross-sectional view of the belt body. 1...Core material, 2...Polyamide resin, 3...Tightening belt for utility pole, 4...Base frame, 5...Operation frame, 6
... Rotating shaft, 7 ... Tightening fitting, 8 ... Locking hole, 9
...Slit, A...Telephone pole, B...Earth wire.