JPS6188037A - Cloth used for electrification preventing belt - Google Patents
Cloth used for electrification preventing beltInfo
- Publication number
- JPS6188037A JPS6188037A JP20949884A JP20949884A JPS6188037A JP S6188037 A JPS6188037 A JP S6188037A JP 20949884 A JP20949884 A JP 20949884A JP 20949884 A JP20949884 A JP 20949884A JP S6188037 A JPS6188037 A JP S6188037A
- Authority
- JP
- Japan
- Prior art keywords
- belt
- fabric
- metal particles
- cloth
- base cloth
- 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.)
- Pending
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 59
- 239000002184 metal Substances 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 21
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 238000005452 bending Methods 0.000 abstract description 4
- 239000002923 metal particle Substances 0.000 abstract 5
- 238000009940 knitting Methods 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000002216 antistatic agent Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 240000000599 Lentinula edodes Species 0.000 description 1
- 235000001715 Lentinula edodes Nutrition 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
- H05F3/025—Floors or floor coverings specially adapted for discharging static charges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G1/00—Driving-belts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Belt Conveyors (AREA)
- Woven Fabrics (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、帯電防止ベルトに用いられる布地に関し、さ
らに詳しくは、高い導電性を有するとともに屈曲に強く
しかも価格の低減が図られた帯電防止ベルトに用いられ
る布地に関する。Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a fabric used for an antistatic belt, and more particularly to an antistatic belt that has high conductivity, is resistant to bending, and is inexpensive. It relates to fabrics used for.
〔発明の技術的１１頭ならびにその問題点〕動力伝達用
のベルトとしては、■ベルト、歯イ」ベルト、丸ベルト
などが広く用いられている。これらのベルトは通常合成
樹脂あるいはゴム類で製コツされているため、ベルトの
作動時にベルトとプーリとの摩漂によって静電気が発生
し、ベル１−を装るした機械はかなりの高電圧に帯電さ
れ、改械に人体が接触した場合に！ｉ撃を与えたり、機
械に装議された電子回路などの誤動作または１１々陣の
原因となったり、あるいは機械に叩芥が付るしたりづる
などの問題点があった。[11 technical aspects of the invention and their problems] As belts for power transmission, ■ belts, toothed belts, round belts, etc. are widely used. These belts are usually made of synthetic resin or rubber, so static electricity is generated by friction between the belt and pulley when the belt is in operation, and the machine equipped with the belt is charged with a fairly high voltage. If the human body comes into contact with the machine! There were problems such as causing damage to the machine, causing malfunctions of electronic circuits connected to the machine, or causing damage to the machine.
このような問題点を解決するため、ベルト本体を形成す
る合成樹脂あるいはゴム中に、帯電防止剤またはカーボ
ン粉末、金属粉末などの導電性粉末を添加することによ
って、ベルトに帯電防止性を付与しようとする試みもな
されている。ところが、現状では、ベルト形成材料とし
て用いられる合成（６１脂あるいシよゴム中で効果的に
機能しうる帯電防止剤は１けられておらず、またベルト
形成材料中に多量のカーボン粉末あるいは金属粉末など
を添加すると、得られるベルトは、ベルトとして求めら
れる物性を満たしていないという問題点があった。In order to solve these problems, attempts have been made to impart antistatic properties to the belt by adding an antistatic agent or conductive powder such as carbon powder or metal powder to the synthetic resin or rubber that forms the belt body. There have also been attempts to do so. However, at present, there is no antistatic agent that can function effectively in the synthetic (61 fat or rubber) used as belt-forming materials, and belt-forming materials contain large amounts of carbon powder or When metal powder or the like is added, there is a problem in that the resulting belt does not satisfy the physical properties required for the belt.
このため、ベルト本体表面に導電性布地を貼着すること
によって、ベルトの帯電を防止しようとする試みがなさ
れている。このような導電性布地としては従来、導電糸
を布地の一部あるいは全体に織り込んだ布地あるいは金
属メツシュ布地が用いられてきた。そして前述の導電糸
としては、合成繊維の表面に金属メッキをして得られた
ものあるいは合成繊維中にカーボンなどの導電体を添加
したものが用いられている。For this reason, attempts have been made to prevent the belt from being charged by attaching conductive fabric to the surface of the belt body. Conventionally, such conductive fabrics include fabrics in which conductive threads are partially or entirely woven into the fabric, or metal mesh fabrics. The above-mentioned conductive threads are those obtained by metal plating the surface of synthetic fibers, or those obtained by adding a conductor such as carbon to synthetic fibers.
ところが、導電糸を布地の一部あるいは全体に織り込／
Ｖで得られる布地は、高価であり、導電性が１０５〜１
０７Ω／ ｃｍと低いという欠点Ｂあった。一方、金属
メツシュ布地は屈曲に弱りＩｖｉ線しやすいという欠点
があり、この欠点を克服するため金属条を太くすると、
得られるベルトが堅くなってしまうという問題点があっ
た。However, it is difficult to weave conductive threads into part or all of the fabric.
Fabrics obtained with V are expensive and have a conductivity of 105-1
There was a drawback B that the resistance was as low as 0.07Ω/cm. On the other hand, metal mesh fabric has the disadvantage of being weak against bending and prone to Ivi lines, and to overcome this disadvantage, the metal strips are made thicker.
There was a problem in that the resulting belt became stiff.
（発明の目的）
本発明は、このような従来技術に伴なう技術的な問題点
を解決しようとするものであり、以下のような目的を右
り°る。(Objectives of the Invention) The present invention aims to solve the technical problems associated with the prior art, and has the following objects.
（ｉ） ベルトに貼着された場合に、高い導電性を提
供しうる帯電防止ベルト用布地を提供すること。(i) To provide an antistatic belt fabric that can provide high electrical conductivity when applied to a belt.
（ｉｉ） 屈曲に強く、しかも価格の低減が図られた
帯電防止ベルト用布地を提供すること。(ii) To provide a fabric for antistatic belts that is resistant to bending and is inexpensive.
〔発明の１’！要〕
本発明に係る帯電防止ベルト用布地は、長手方向の伸長
率が２０〜２００％である基布の一面に、外径が２．５
〜５０μｍで長径と短径の比が２：１以内である金属粉
末が５〜１５０μ雇の厚みで接着剤を介して設けられて
いることを特徴としている。[Invention 1'! [Required] The antistatic belt fabric according to the present invention has a base fabric with an elongation rate of 20 to 200% in the longitudinal direction and an outer diameter of 2.5% on one side of the base fabric.
It is characterized in that a metal powder of ~50 μm and a ratio of major axis to minor axis of 2:1 or less is provided with a thickness of 5 to 150 μm via an adhesive.
以下本発明を図面に示ず具体例に基づいて説明する。 The present invention will be described below based on specific examples not shown in the drawings.
本発明に係る帯電防止ベルト用布地１は、図に示される
ように、基布２の一面に金属＄５）末３が設けられてい
る。As shown in the figure, the antistatic belt fabric 1 according to the present invention has a metal powder 3 on one side of the base fabric 2.
基布２は、ベルト本体の一面に設けられた場合にベルト
の長手方向となる方向すなわち基布２の長手方向におけ
る伸長率ＬＪ ｌ５−Ｌ−１０８０に基づく）が２０〜
２００％であることが好ましい。基布２の長手方向にお
ける伸長率が２０％未満であると、ベルト使用時にベル
ト外周部が伸長した際に、ベルト本体へ基布２あるいは
金属粉末３が食い込んだり、基布２がベルト本体から剥
離したりするため好ましくない。一方、この伸長率が２
００％を越えると、基布２はベルト本体からは剥離しに
くくなるが、帯電防止効果が少なくなるため好ましくな
い。The base fabric 2 has an elongation rate (based on LJ 15-L-1080) of 20 to 20 in the direction that becomes the longitudinal direction of the belt when provided on one side of the belt body, that is, the longitudinal direction of the base fabric 2.
Preferably it is 200%. If the elongation rate in the longitudinal direction of the base fabric 2 is less than 20%, when the outer circumference of the belt stretches during use, the base fabric 2 or metal powder 3 may dig into the belt body, or the base fabric 2 may separate from the belt body. It is not preferable because it may peel off. On the other hand, this elongation rate is 2
If it exceeds 00%, the base fabric 2 will be difficult to peel off from the belt body, but the antistatic effect will be reduced, which is not preferable.
また基布２は、ナイロン、テトロン、芳香族ポリアミド
、ポリアミド、ビニリデン、ポリ塩化ビニル、などの合
成繊維、麻、綿、などの天然繊維などが用いられうる。The base fabric 2 may be made of synthetic fibers such as nylon, tetron, aromatic polyamide, polyamide, vinylidene, polyvinyl chloride, or natural fibers such as hemp or cotton.
この基布２は、その構造についてる目すれば、織物、編
物、不織物のいずれでもよ、い。織物としては、平織、
斜文織、朱子織のいずれでもよく、これらの織物組織に
変化を加えた変化平織、変化斜文織、変化朱子織、特別
組織であってもよく、また場合によっては、たて糸、よ
こ糸のいずれか一方あるいは両者に２種以上の糸を用い
た組織である小ね１１織であってもよい。編物としてｔ
よ、平編（天竺など）、ゴム編、バール編、浮編、タッ
ク編、レース編、シンカループ編、よこ糸入編、尖毛編
、両面編、添糸編などが用いられる。The base fabric 2 may be woven, knitted, or non-woven, depending on its structure. Fabrics include plain weave,
It may be either oblique weave or satin weave, or it may be a modified plain weave, a modified oblique weave, a modified satin weave, or a special weave that is a variation of these textile structures.In some cases, either warp or weft may be used. It may be a small 11 weave, which is a structure using two or more types of threads in one or both of the threads. As a knitted item
Used are flat knitting (such as jersey), rubber knitting, crow knitting, floating knitting, tuck knitting, lace knitting, sinker loop knitting, weft threaded knitting, pointed knitting, double-sided knitting, and plating knitting.
基布２上に設けられる金属粉末３は、外径が２．５〜５
０μ瓦であって、その長径と短径との比が２：１以内で
あるものが好ましい。すなわら金属粉末３は球形に近い
形状であることが好ましい。また、この金属粉末３は、
基布２上に５〜１５０μｍの厚みで接着剤を介して設け
られていることが好ましい。接着剤としては、ウレタン
系接着剤、アクリル系接着剤、ポリエステル系接着剤、
ポリアミド系接着剤などが用いられる。The metal powder 3 provided on the base fabric 2 has an outer diameter of 2.5 to 5.
Preferably, the tiles are 0μ tiles and the ratio of the major axis to the minor axis is within 2:1. That is, it is preferable that the metal powder 3 has a shape close to a spherical shape. Moreover, this metal powder 3 is
It is preferable that it is provided on the base fabric 2 with a thickness of 5 to 150 μm via an adhesive. Adhesives include urethane adhesive, acrylic adhesive, polyester adhesive,
A polyamide adhesive or the like is used.
金属粉末３は、上記の範囲の外径、長径と短径どの比、
厚みを有するようにして基布２上に設けられることによ
って、布地との接る性が向上し、しかもベルトの使用時
に金属粉末が剥離して飛散することが防止される。The metal powder 3 has an outer diameter within the above range, a ratio of the major axis to the minor axis,
By being thick and provided on the base fabric 2, contact with the fabric is improved, and metal powder is prevented from peeling off and scattering when the belt is used.
金属粉末３としては、導電性の金属を広く用いることか
できるが、ニッケル、鉄、コバルト、銀、金などが好ま
しい。As the metal powder 3, a wide variety of conductive metals can be used, but nickel, iron, cobalt, silver, gold, etc. are preferable.
ベルト本体に、金属粉末３が設けられた基布２を貼着す
るには、たとえば、ベルトを押出し成形法により製Ｊす
る場合には、基布２上に金属粉末３を接着させた後、た
とえばベルトを押出し成形する場合には、ベルト形成材
料とともに布地３を押出し成形低中に、布地３がベル１
一本体の外表面に位置するように挿入すればよい。To attach the base fabric 2 provided with the metal powder 3 to the belt body, for example, when the belt is manufactured by extrusion molding, after the metal powder 3 is attached onto the base fabric 2, For example, when extruding a belt, the fabric 3 is extruded together with the belt forming material, and the fabric 3 is extruded into the belt 1.
It may be inserted so as to be located on the outer surface of one main body.
以下実施例により本発明を説明するが、本発明はこれら
の実施例に限定されるものではない。The present invention will be explained below with reference to Examples, but the present invention is not limited to these Examples.
支旌璽ユ
基布として、ナイロン７０／１−２４加工糸からなる編
組織（天竺編み、目付１２５ｇ）を有する編地に、ニッ
ケル粉末を２５μｍの厚みで塗布した。ニッケル粉末は
、外径約１０μｍの粒径を有しており、長径と短径との
比は２：１以内であった。用いた編地の長手方向の伸長
率は、ＪＩＳ−Ｌ−１０８０に基づいて測定したところ
、７０％であった。Nickel powder was applied to a thickness of 25 μm on a knitted fabric made of nylon 70/1-24 processed yarn (Tenjiku knit, basis weight: 125 g) as a base fabric for the shiitake. The nickel powder had a particle size with an outer diameter of about 10 μm, and the ratio of the major axis to the minor axis was within 2:1. The longitudinal elongation rate of the knitted fabric used was 70% when measured based on JIS-L-1080.
１ｑられた布地を、押出し成形機中にベルト形成材ｒ３
ｔであるウレタンとともに、布地がベルトの外表面に位
置するように挿入して、歯付ベルトを得た。1q fabric is put into belt forming material R3 in an extrusion molding machine.
A toothed belt was obtained by inserting the fabric together with urethane (t) so that it was located on the outer surface of the belt.
得られた帯電防止歯付ベルトを、通常使用の３倍の初期
張力をかけて３０００ｒｐｍで５０時間使用したところ
、布地のベルト本体からの剥離は認められず、しかし金
属粉末の剥離による粉末飛散も認められなかった。When the resulting antistatic toothed belt was used for 50 hours at 3,000 rpm with an initial tension three times higher than normal use, no peeling of the fabric from the belt body was observed, but powder scattering due to peeling of the metal powder was also observed. I was not able to admit.
使用時におけるブーり部分の帯電圧は５０Ｖ以下であっ
た。なお、帯電防止が施されていない通常のウレタンベ
ルトでは、プーリ部分の帯電圧は３００■以上になる。The charged voltage at the bobbin portion during use was 50V or less. In addition, in the case of a normal urethane belt that is not antistatically charged, the charged voltage at the pulley portion will be 300μ or more.
実施例２
経糸として２１０／２−３０ナイロンウーり加工糸を、
緯糸として２１０／２−３０ナイロン原糸を用いて２／
２の綾織り組織（目付２５０ｇ）の織地に、ニッケル粉
末を５０μｍの厚みで塗布してずｌｉ地を得た。なお織
地の長手方向伸長率は３５％ＬＪ １ｓ−Ｌ−１０８０
に基づく）であった。Example 2 210/2-30 nylon wool processed yarn was used as the warp,
2/2 using 210/2-30 nylon yarn as the weft
Nickel powder was applied to a thickness of 50 μm to the fabric of No. 2 having a twill weave structure (weighing 250 g) to obtain a twill fabric. The longitudinal elongation rate of the fabric is 35% LJ 1s-L-1080
).
実施例１と同様に得られたベルトの性能試験を行なった
ところ、実施例１と同（基の結果が得られた。When the performance test of the obtained belt was conducted in the same manner as in Example 1, the same results as in Example 1 were obtained.
また布地から金属粉末を剥離させようとしたが、この際
金属粉末は剥離せず、金属粉末と布地は強く接着してい
ることがわがった。They also tried to peel the metal powder from the fabric, but found that the metal powder did not peel off and that the metal powder and fabric were strongly adhered to each other.
図は、本発明に係る布地の断面図である。 １・・・布地、２・・・基布、３・・・金属粉末。 The figure is a cross-sectional view of a fabric according to the invention. 1...Fabric, 2...Base fabric, 3...Metal powder.
Claims (1)
、外径が２．５〜５０μｍであり長径と短径との比が２
：１以内である金属粉末が５〜１５０μｍの厚みで接着
剤を介して設けられていることを特徴とする帯電防止ベ
ルト用布地。On one side of the base fabric whose elongation rate in the longitudinal direction is 20 to 200%, the outer diameter is 2.5 to 50 μm and the ratio of the major axis to the minor axis is 2.
A fabric for an antistatic belt, characterized in that a metal powder having a thickness of 5 to 150 μm and having a thickness of 5 to 150 μm is attached via an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20949884A JPS6188037A (en) | 1984-10-05 | 1984-10-05 | Cloth used for electrification preventing belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20949884A JPS6188037A (en) | 1984-10-05 | 1984-10-05 | Cloth used for electrification preventing belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6188037A true JPS6188037A (en) | 1986-05-06 |
Family
ID=16573799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20949884A Pending JPS6188037A (en) | 1984-10-05 | 1984-10-05 | Cloth used for electrification preventing belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6188037A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020106148A (en) * | 2018-12-26 | 2020-07-09 | 三ツ星ベルト株式会社 | V-belt for transmission and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5015099U (en) * | 1973-06-05 | 1975-02-17 | ||
| JPS5822428U (en) * | 1981-08-04 | 1983-02-12 | 日産自動車株式会社 | Engine with turbo gear |
-
1984
- 1984-10-05 JP JP20949884A patent/JPS6188037A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5015099U (en) * | 1973-06-05 | 1975-02-17 | ||
| JPS5822428U (en) * | 1981-08-04 | 1983-02-12 | 日産自動車株式会社 | Engine with turbo gear |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020106148A (en) * | 2018-12-26 | 2020-07-09 | 三ツ星ベルト株式会社 | V-belt for transmission and manufacturing method thereof |
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