JPH0669490U - Continuously variable transmission belt - Google Patents
Continuously variable transmission beltInfo
- Publication number
- JPH0669490U JPH0669490U JP1751793U JP1751793U JPH0669490U JP H0669490 U JPH0669490 U JP H0669490U JP 1751793 U JP1751793 U JP 1751793U JP 1751793 U JP1751793 U JP 1751793U JP H0669490 U JPH0669490 U JP H0669490U
- Authority
- JP
- Japan
- Prior art keywords
- belt
- pulley
- tension band
- continuously variable
- variable transmission
- 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
Classifications
-
- 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
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts
- F16G5/166—V-belts, i.e. belts of tapered cross-section consisting of several parts with non-metallic rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
(57)【要約】
【目的】 スリップおよびノイズの発生を低減し得る無
段変速機用ベルトの提供を目的とする。
【構成】 多数のブロック９の端面に形成された嵌合溝
９ａに張力帯１０を嵌合させて、張力帯１０で多数のブ
ロック９を連結してなるベルト３において、ブロック９
の端面９Ｐよりも張力帯１０の端面１０Ｐを外側へ突出
させて、プーリーからベルトに加わる側圧に対する張力
帯１０の荷重分担率を高めるように構成する。
(57) [Abstract] [Purpose] An object of the present invention is to provide a belt for a continuously variable transmission that can reduce the occurrence of slip and noise. [Structure] In a belt 3 formed by fitting tension bands 10 into fitting grooves 9a formed on the end faces of a large number of blocks 9 and connecting a large number of blocks 9 with the tension bands 10.
The end surface 10P of the tension band 10 is made to project outward more than the end surface 9P of the above so as to increase the load sharing ratio of the tension band 10 with respect to the lateral pressure applied to the belt from the pulley.
Description
【０００１】[0001]
この考案は、無段変速機におけるベルトの改良に関するものである。 The present invention relates to improvement of a belt in a continuously variable transmission.
【０００２】[0002]
従来、無段変速機は図４に概略図で示すように、駆動側プーリー１と従動側プ ーリー２間にベルト３が掛装されており、前記駆動側プーリー１の回転軸４には 固定状に固定プーリー５が設けられ、これと対向して回転軸４に摺動移動可能に 可動プーリー６が設けられており、固定プーリー５と可動プーリー６の対向する 面は円錐状のプーリー円形面５ａ，６ａとなっている。また、前記従動側プーリ ー２にも固定プーリー７と対向して可動プーリー８が設けられ、各プーリーの内 側はプーリー円錐面７ａ，８ａとなっている。 Conventionally, in a continuously variable transmission, a belt 3 is looped between a driving pulley 1 and a driven pulley 2 as shown in the schematic view of FIG. 4, and is fixed to a rotary shaft 4 of the driving pulley 1. Fixed pulley 5 is provided in a circular shape, and a movable pulley 6 is provided so as to be slidably movable on the rotary shaft 4 so as to face the fixed pulley 5. The facing surfaces of the fixed pulley 5 and the movable pulley 6 are conical pulley circular surfaces. 5a and 6a. Further, the driven pulley 2 is also provided with a movable pulley 8 so as to face the fixed pulley 7, and inner sides of the respective pulleys are pulley conical surfaces 7a, 8a.
【０００３】 ベルト３の掛装状態の要部拡大図を図５に示す。すなわち、ベルト３は、その 側面端面をプーリー円錐面５ａ，６ａに当接させて掛装されるものであり、ベル ト３は図６に要部を拡大して示すように、多数のブロック９，９，９と、この各 ブロック９，９，９をエンドレスに連結する両側の張力帯１０，１０で構成され ており、各ブロック９の端面側に窪み状に形成された嵌合溝９ａ，９ａにそれぞ れ張力帯１０，１０が嵌合されており、従来においては、この各ブロック９の端 面９Ｐと、張力帯１０の端面１０Ｐはほぼ面一状となっており、プーリー円錐面 ５ａ，６ａに対し、各ブロック９の端面９Ｐと張力帯１０の端面１０Ｐが面一状 で当接し、可動プーリー６および固定プーリー５間に挟まれて、各プーリー５， ６から内方に働く側圧（押圧力）がベルト３を構成する各ブロック９の端面９Ｐ と張力帯１０の端面１０Ｐに同等の荷重分担率で加わり、この時に、各ブロック ９の表面の樹脂コーティングされた樹脂層がプーリー円錐面５ａ，６ａに当接し て、各ブロック９がプーリー円錐面５ａ，６ａに巻き着く時、ブロック９のピッ チ周期でノイズが発生し、このノイズにより無段変速機全体の騒音が増大してし まい、また、ブロック９にコーティングされた樹脂層の摩擦係数が低いため、ス リップが発生し易いという問題点があった。FIG. 5 is an enlarged view of a main part of the belt 3 in a mounted state. That is, the belt 3 is hung on the side surface end faces of the pulley conical surfaces 5a and 6a, and the belt 3 includes a large number of blocks 9 as shown in FIG. , 9, 9 and tension bands 10, 10 on both sides for connecting the blocks 9, 9, 9 endlessly, and fitting grooves 9a formed in a concave shape on the end face side of each block 9, Tension bands 10 and 10 are fitted to the respective 9a. In the conventional case, the end surface 9P of each block 9 and the end surface 10P of the tension band 10 are substantially flush with each other, and the pulley conical surface is formed. The end surface 9P of each block 9 and the end surface 10P of the tension band 10 are in flush contact with 5a and 6a, are sandwiched between the movable pulley 6 and the fixed pulley 5, and work inward from each pulley 5 and 6. The lateral pressure (pressing force) is applied to each block forming the belt 3. 9 is applied to the end surface 9P of 9 and the end surface 10P of the tension band 10 at the same load sharing rate. At this time, the resin-coated resin layer on the surface of each block 9 contacts the pulley conical surfaces 5a and 6a, When the coil winds around the conical surfaces 5a, 6a of the pulley, noise is generated in the pitch cycle of the block 9, and this noise may increase the noise of the entire continuously variable transmission. Since the friction coefficient of the layer is low, there is a problem that slips are likely to occur.
【０００４】[0004]
本考案は上記従来の問題点に鑑み案出したものであって、スリップおよびノイ ズの発生を抑えることのできる無段変速機のベルトを提供せんことを目的とし、 その第１の要旨は、多数のブロックを張力帯で連結し、該各ブロックと張力帯の 端面をプーリーの円錐面に当接させて該プーリーに掛装される無段変速機のベル トであって、前記各ブロックの端面よりも前記張力帯の端面を前記プーリーの円 錐面側へ突出させたことである。 The present invention has been devised in view of the above conventional problems, and an object thereof is not to provide a belt for a continuously variable transmission capable of suppressing the occurrence of slip and noise. A belt for a continuously variable transmission that is mounted on a pulley by connecting a number of blocks with tension bands, and contacting the end faces of the blocks and the tension bands with the conical surface of a pulley, That is, the end surface of the tension band is made to project from the end surface toward the conical surface side of the pulley.
【０００５】 また第２の要旨は、多数のブロックを張力帯で連結し、該各ブロックと張力帯 の端面をプーリーの円錐面に当接させて該プーリーに掛装される無段変速機のベ ルトであって、前記張力帯を弾性率が６０００kg/cm2以上の材質で形成したこと である。A second gist of the invention is a continuously variable transmission in which a large number of blocks are connected by tension bands, and the end faces of the blocks and the tension bands are brought into contact with the conical surface of a pulley to be hung on the pulley. It is a belt, and the tension band is made of a material having an elastic modulus of 6000 kg / cm 2 or more.
【０００６】 また第３の要旨は、多数のブロックを張力帯で連結し、該各ブロックと張力帯 の端面をプーリーの円錐面に当接させて該プーリーに掛装される無段変速機のベ ルトであって、前記各ブロックの端面側に形成される嵌合溝内に前記張力帯を嵌 合強さを高めて嵌合したことである。A third gist of the present invention is a continuously variable transmission in which a large number of blocks are connected by tension bands, and the end faces of the blocks and the tension bands are brought into contact with the conical surface of a pulley to be hung on the pulley. This is a belt, and the tension band is fitted in the fitting groove formed on the end face side of each block with the fitting strength increased.
【０００７】 また第４の要旨は、前記プーリーからベルトに加わる側圧（押圧力）に対する 前記張力帯の荷重分担率を４０％〜９０％に設定したことである。A fourth gist is that the load sharing ratio of the tension band with respect to the lateral pressure (pressing force) applied from the pulley to the belt is set to 40% to 90%.
【０００８】[0008]
前記第１の要旨において、ベルトを構成する各ブロックの端面よりも張力帯の 端面を外側へ突出させたため、プーリー間にベルトが掛装された状態では、プー リーの円錐面に対し主として張力帯の端面が当接することとなり、ブロックの端 面の荷重分担率が減少されて、ブロックの衝突エネルギーが緩和され、また、張 力帯はブロックより摩擦係数が高いため、スリップ及びノイズの発生も抑えられ る。 In the first aspect, since the end surface of the tension band is projected outward from the end surface of each block constituting the belt, the tension band is mainly applied to the conical surface of the pulley when the belt is hung between the pulleys. Since the end faces of the block come into contact with each other, the load sharing ratio of the block end face is reduced, the collision energy of the block is relieved, and the tension band has a higher friction coefficient than the block, so the occurrence of slip and noise is also suppressed. It is done.
【０００９】 また第２の要旨において、張力帯を弾性率が６０００kg/cm2以上の材質で形成 したことにより、張力帯の荷重分担率を高めてスリップおよびノイズの発生を少 なくすることができる。In the second aspect, since the tension band is made of a material having an elastic modulus of 6000 kg / cm 2 or more, the load sharing ratio of the tension band can be increased and the occurrence of slip and noise can be reduced. .
【００１０】 さらに前記第３の要旨において、各ブロックに形成されている嵌合溝に対し、 張力帯を強い嵌合力で嵌合させたため、張力帯の荷重分担率が高められて、スリ ップおよびノイズの発生を低減させることができる。Further, in the third aspect, since the tension band is fitted into the fitting groove formed in each block with a strong fitting force, the load sharing ratio of the tension band is increased, and the slip band is increased. Also, the generation of noise can be reduced.
【００１１】 さらに前記第４の要旨において、張力帯の荷重分担率を４０％〜９０％に設定 したため、張力帯の荷重分担率が高められて、スリップおよびノイズの発生を低 減させることができる。Further, in the fourth aspect, since the load sharing ratio of the tension band is set to 40% to 90%, the load sharing ratio of the tension band is increased, and the occurrence of slip and noise can be reduced. .
【００１２】[0012]
以下、本考案の実施例を図面に基づいて説明する。 図１はプーリーのプーリー円錐面に対するベルトの当接状態を示す要部断面構 成図であり、ベルト３を構成する各ブロック９の端面９Ｐ側には窪み状に嵌合溝 ９ａが形成されており、この嵌合溝９ａ内に張力帯１０が嵌合されており、各ブ ロック９は例えばアルミ製で形成されており、その表面側には樹脂をコーティン グした表面樹脂層９ｂが形成されている。 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional configuration diagram of a main part showing a contact state of a belt with a pulley conical surface of a pulley. A fitting groove 9a is formed in a concave shape on an end surface 9P side of each block 9 constituting the belt 3. The tension band 10 is fitted in the fitting groove 9a, each block 9 is made of, for example, aluminum, and a surface resin layer 9b coated with resin is formed on the surface side thereof. ing.
【００１３】 また、前記張力帯１０内には複数の芯線１０ａ，１０ａ，１０ａが長手方向に 埋設されている。なお、張力帯１０はゴムに繊維を混合させた材質で形成された ものであり、本例においては従来のものよりもゴムに対する繊維の混合率が高め られた材質となっており、繊維分が多いために従来よりも固く、弾性率が６００ ０kg/cm2以上となっている。A plurality of core wires 10a, 10a, 10a are embedded in the tension band 10 in the longitudinal direction. The tension band 10 is made of a material in which fibers are mixed with rubber. In this example, the tension band 10 is made of a material in which the mixing ratio of fibers to rubber is higher than that of the conventional one. Since it is abundant, it is stiffer than before and has an elastic modulus of 6000 kg / cm 2 or more.
【００１４】 また、本例では張力帯１０は嵌合溝９ａに対する嵌合力が高められたものとな っており、すなわち、嵌合溝９ａの高さ幅と張力帯１０の高さ幅がほぼ同じ程度 であり、無理嵌め状態で嵌合溝９ａ内に張力帯１０が強固に嵌合されている。Further, in this example, the tension band 10 has an increased fitting force with respect to the fitting groove 9a, that is, the height width of the fitting groove 9a and the height width of the tension band 10 are substantially the same. In the same degree, the tension band 10 is firmly fitted in the fitting groove 9a in a force fitted state.
【００１５】 さらに張力帯１０の端面１０Ｐはブロック９の端面９Ｐよりも外側へ所定の出 代Ｓ（例えば０．２mm程度）で突出されたものとなっており、プーリーにベルト ３が掛装された時には、プーリー円錐面５ａに対し張力帯１０の端面１０Ｐが主 として当接し、張力帯１０のプーリーからの側圧（押圧力）に対する荷重分担率 が高められており、ブロック９の端面９Ｐとプーリー円錐面５ａとの当接を少な くして、ブロック９の荷重分担率を低くするように構成されている。Further, the end surface 10P of the tension band 10 is projected outward from the end surface 9P of the block 9 by a predetermined margin S (for example, about 0.2 mm), and the belt 3 is hooked on the pulley. At this time, the end surface 10P of the tension band 10 is mainly in contact with the conical surface 5a of the pulley, and the load sharing ratio of the tension band 10 to the lateral pressure (pressing force) from the pulley is increased. The load bearing ratio of the block 9 is lowered by reducing the contact with the conical surface 5a.
【００１６】 すなわち図２に示すように、張力帯１０の荷重分担率を高いものに設定してお けば、ベルト３のスリップは実線で示すように低いものとなり、それに伴って破 線で示すノイズの発生も低く抑えることができる。但し、あまり荷重分担率を高 くすると逆にベルト３の温度上昇が高まるため、ある程度の張力帯１０の荷重分 担率を設定する必要があり、図中Ｍで示す範囲に張力帯１０の荷重分担率を設定 することが好ましく、本例では張力帯１０の荷重分担率は４０％〜９０％に設定 されている。That is, as shown in FIG. 2, when the load sharing ratio of the tension band 10 is set to be high, the slip of the belt 3 becomes low as shown by the solid line, and accordingly, the line is shown by broken line. Generation of noise can be suppressed to a low level. However, if the load sharing ratio is increased too much, the temperature rise of the belt 3 will increase. Therefore, it is necessary to set the load sharing ratio of the tension band 10 to some extent. It is preferable to set the rate, and in this example, the load sharing rate of the tension band 10 is set to 40% to 90%.
【００１７】 なお、この張力帯１０の荷重分担率は、前述した張力帯１０の出代Ｓの寸法を 大とするか、または張力帯１０の材質を変えて弾性率を高めるか、またはブロッ ク９の嵌合溝９ａに対する張力帯１０の嵌合強さを強めるかの何れか、またはそ の複合により成し得ることができ、図３には荷重分担率と出代Ｓ，弾性率等との 関係線図を示す。The load sharing rate of the tension band 10 is set by increasing the above-mentioned dimension S of the tension band 10 or changing the material of the tension band 10 to increase the elastic modulus, or by the block ratio. It can be achieved by either increasing the fitting strength of the tension band 10 to the fitting groove 9a of No. 9 or a combination thereof, and FIG. Shows the relationship diagram of.
【００１８】 このように本例では、張力帯１０の出代Ｓを確保し、さらに張力帯１０の材質 を変えてその弾性率を高め、かつ嵌合溝９ａに対する嵌合力を強めて、張力帯１ ０の荷重分担率を高めたため、無段変速機の運転時において、プーリー円錐面５ ａ，６ａとブロック９の端面９Ｐとの間で生ずるスリップの発生が少なくなり、 またノイズの発生も少なくなって、異音の生じない良好な無段変速機を得ること ができる。As described above, in this example, the protrusion margin S of the tension band 10 is secured, the material of the tension band 10 is further changed to increase its elastic modulus, and the fitting force to the fitting groove 9a is strengthened to increase the tension band. Since the load sharing ratio of 10 has been increased, the occurrence of slip between the pulley conical surfaces 5a and 6a and the end surface 9P of the block 9 during operation of the continuously variable transmission is reduced, and the generation of noise is also reduced. As a result, it is possible to obtain a good continuously variable transmission with no abnormal noise.
【００１９】[0019]
本考案は、多数のブロックを張力帯で連結し、各ブロックと張力帯の端面をプ ーリーの円錐面に当接させて該プーリーに掛装される無段変速機のベルトであっ て、前記各ブロックの端面よりも前記張力帯の端面を前記プーリーの円錐面側へ 突出させたことにより、張力帯の荷重分担率が従来よりも高められ、その分、ブ ロック側の荷重分担率が低くなり、プーリー間でのスリップおよびノイズの発生 が良好に減少される効果を有する。 The present invention relates to a belt for a continuously variable transmission, which comprises a plurality of blocks connected by tension bands, and the end faces of the blocks and the tension bands are brought into contact with the conical surface of the pulley to be hung on the pulleys. By projecting the end surface of the tension band toward the conical surface side of the pulley rather than the end surface of each block, the load sharing ratio of the tension band is higher than before, and the load sharing ratio of the block side is lower by that amount. Therefore, the occurrence of slip and noise between the pulleys is effectively reduced.
【００２０】 また、前記張力帯を弾性率が６０００kg/cm2以上の材質で形成したことにより 、張力帯の荷重分担率が高められて、スリップおよびノイズの発生を低減させる ことができる。Further, since the tension band is formed of a material having an elastic modulus of 6000 kg / cm 2 or more, the load sharing rate of the tension band is increased, and the occurrence of slip and noise can be reduced.
【００２１】 また、前記各ブロックの端面側に形成される嵌合溝内に前記張力帯を嵌合強さ を高めて嵌合したことにより、張力帯の荷重分担率が高められてスリップおよび ノイズの発生が低減される。Further, since the tension band is fitted in the fitting groove formed on the end face side of each block with a higher fitting strength, the load sharing ratio of the tension band is increased and slips and noises are increased. Is reduced.
【００２２】 さらに、前記プーリーからベルトに加わる側圧（押圧力）に対する前記張力帯 の荷重分担率を４０％〜９０％に設定したことにより、張力帯の荷重分担率が高 められてスリップおよびノイズの発生が低減される。Further, by setting the load sharing ratio of the tension band with respect to the lateral pressure (pressing force) applied to the belt from the pulley to 40% to 90%, the load sharing ratio of the tension band is increased, and slip and noise are increased. Is reduced.
【図１】プーリー円錐面とベルトとの当接状態を示す要
部断面構成図である。FIG. 1 is a cross-sectional configuration diagram of essential parts showing a contact state between a conical surface of a pulley and a belt.
【図２】張力帯の荷重分担率とスリップおよびノイズ等
との関係を示す関係線図である。FIG. 2 is a relationship diagram showing a relationship between a load sharing ratio of a tension band and slip, noise, and the like.
【図３】荷重分担率と出代，弾性率との関係を示す線図
である。FIG. 3 is a diagram showing a relationship between a load sharing rate, a margin and an elastic modulus.
【図４】無段変速機の概略構成図である。FIG. 4 is a schematic configuration diagram of a continuously variable transmission.
【図５】無段変速機のプーリーにベルトを掛装した状態
の要部拡大図である。FIG. 5 is an enlarged view of a main part of a continuously variable transmission in which a belt is wound around a pulley.
【図６】従来のベルトの構造を示す要部拡大斜視図であ
る。FIG. 6 is an enlarged perspective view of an essential part showing the structure of a conventional belt.
１ 駆動側プーリー ２ 従動側プーリー ３ ベルト ５ 固定プーリー ５ａ プーリー円錐面 ６ 可動プーリー ６ａ プーリー円錐面 ９ ブロック ９ａ 嵌合溝 ９ｂ 表面樹脂層 ９Ｐ 端面 １０ 張力帯 １０ａ 芯線 １０Ｐ 端面 Ｓ 出代 1 Drive side pulley 2 Driven side pulley 3 Belt 5 Fixed pulley 5a Pulley cone surface 6 Movable pulley 6a Pulley cone surface 9 Block 9a Fitting groove 9b Surface resin layer 9P End surface 10 Tension band 10a Core wire 10P End surface S margin
Claims (4)
ブロックと張力帯の端面をプーリーの円錐面に当接させ
て該プーリーに掛装される無段変速機のベルトであっ
て、前記各ブロックの端面よりも前記張力帯の端面を前
記プーリーの円錐面側へ突出させたことを特徴とする無
段変速機のベルト。1. A belt for a continuously variable transmission, which comprises a plurality of blocks connected by tension bands, and the end faces of the blocks and the tension bands are brought into contact with a conical surface of a pulley to be hung on the pulleys. A belt for a continuously variable transmission, characterized in that an end surface of the tension band is projected toward a conical surface side of the pulley rather than an end surface of each block.
ブロックと張力帯の端面をプーリーの円錐面に当接させ
て該プーリーに掛装される無段変速機のベルトであっ
て、前記張力帯を弾性率が６０００kg/cm2以上の材質で
形成したことを特徴とする無段変速機のベルト。2. A belt of a continuously variable transmission which is connected to a plurality of blocks by tension bands, and the end faces of the blocks and the tension bands are brought into contact with the conical surface of a pulley to be hung on the pulleys. A belt for a continuously variable transmission, wherein the tension band is formed of a material having an elastic modulus of 6000 kg / cm 2 or more.
ブロックと張力帯の端面をプーリーの円錐面に当接させ
て該プーリーに掛装される無段変速機のベルトであっ
て、前記各ブロックの端面側に形成される嵌合溝内に前
記張力帯を嵌合強さを高めて嵌合したことを特徴とする
無段変速機のベルト。3. A belt for a continuously variable transmission, wherein a plurality of blocks are connected by a tension band, and end faces of the blocks and the tension band are brought into contact with a conical surface of a pulley to be hung on the pulley. A belt for a continuously variable transmission, wherein the tension band is fitted in a fitting groove formed on an end face side of each block with the fitting strength increased.
（押圧力）に対する前記張力帯の荷重分担率を４０％〜
９０％に設定したことを特徴とする前記請求項１または
請求項２または請求項３に記載の無段変速機のベルト。4. The load sharing ratio of the tension band with respect to the lateral pressure (pressing force) applied to the belt from the pulley is 40% to 40%.
The belt of the continuously variable transmission according to claim 1, 2 or 3, wherein the belt is set to 90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1751793U JPH0669490U (en) | 1993-03-15 | 1993-03-15 | Continuously variable transmission belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1751793U JPH0669490U (en) | 1993-03-15 | 1993-03-15 | Continuously variable transmission belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0669490U true JPH0669490U (en) | 1994-09-30 |
Family
ID=11946156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1751793U Pending JPH0669490U (en) | 1993-03-15 | 1993-03-15 | Continuously variable transmission belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0669490U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1739325A2 (en) | 2002-08-19 | 2007-01-03 | Bando Chemical Industries, Ltd. | Heavy duty transmission V-belt |
| JP2012233565A (en) * | 2011-04-22 | 2012-11-29 | Mitsuboshi Belting Ltd | Transmission belt |
-
1993
- 1993-03-15 JP JP1751793U patent/JPH0669490U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1739325A2 (en) | 2002-08-19 | 2007-01-03 | Bando Chemical Industries, Ltd. | Heavy duty transmission V-belt |
| JP2012233565A (en) * | 2011-04-22 | 2012-11-29 | Mitsuboshi Belting Ltd | Transmission belt |
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