JPH0362536B2 - - Google Patents
Info
- Publication number
- JPH0362536B2 JPH0362536B2 JP62045751A JP4575187A JPH0362536B2 JP H0362536 B2 JPH0362536 B2 JP H0362536B2 JP 62045751 A JP62045751 A JP 62045751A JP 4575187 A JP4575187 A JP 4575187A JP H0362536 B2 JPH0362536 B2 JP H0362536B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- reinforcing
- reinforcing cloth
- uneven shape
- endless belt
- 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 - Lifetime
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 77
- 239000004744 fabric Substances 0.000 claims description 72
- 239000000463 material Substances 0.000 claims description 39
- 238000005266 casting Methods 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 28
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 description 12
- 239000004814 polyurethane Substances 0.000 description 12
- 229920001971 elastomer Polymers 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000012778 molding material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229920001944 Plastisol Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920003233 aromatic nylon Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 elastic fibers Substances 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920006264 polyurethane film Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、伝動用無端ベルトの製造方法に関
し、ベルト本体の側面に一体形成された歯部等の
突起部表面に沿うように補強布を備えた無端ベル
トを製造するに際して、突起部表面に設けられる
補強布を金型の突起部形成用の凹凸形状に簡単か
つ確実に沿わせ得るようにするものである。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method of manufacturing an endless belt for power transmission, and relates to a method of manufacturing an endless belt for power transmission, in which a reinforcing cloth is attached along the surface of protrusions such as teeth integrally formed on the side surface of the belt body. When manufacturing the endless belt, the reinforcing cloth provided on the surface of the protrusion can be easily and reliably aligned with the uneven shape of the mold for forming the protrusion.
（従来の技術）
ベルト本体の側面に突起部、例えば歯部を一体
形成した伝動用の無端ベルトは、動力伝達の主要
な方式としてあらゆる分野で使用されており、そ
の同期伝動を可能にする特性は、伝動用品におい
て不可欠になつている。特に、ポリウレタン等の
液状合成樹脂又は液状ゴムを使用した歯部付きの
無端ベルトは、その素材の持つ特性から、ゴム屑
等による汚れをきらう動力伝達系や搬送系の用途
に最適とされている。(Prior Art) Endless transmission belts, which have protrusions, such as teeth, integrally formed on the side of the belt body, are used in all fields as the main method of power transmission, and their characteristics enable synchronous transmission. has become indispensable in power transmission products. In particular, endless belts with teeth made of liquid synthetic resin such as polyurethane or liquid rubber are considered to be ideal for use in power transmission systems and conveyance systems where dirt from rubber debris is avoided due to the characteristics of the material. .
この種のポリウレタン等を使用する歯部付きの
無端ベルトにおいては、歯部をポリウレタン等で
ベルト本体に一体形成しただけのものであれば、
プーリーの歯部との咬合い時に、その摩擦抵抗に
よつて著しく発熱すると共に、摩損によつて歯部
が欠ける等、耐久性の点で問題があり、またベル
トの走行時にプーリーの歯部と咬合いによつて騒
音が発生する欠点があつた。 In this type of endless belt with teeth made of polyurethane, etc., if the teeth are simply formed integrally with the belt body from polyurethane, etc.
When the belt engages with the teeth of the pulley, the frictional resistance causes significant heat generation, and there are problems with durability, such as the teeth becoming chipped due to wear and tear. The drawback was that noise was generated by the occlusion.
そこで、内外金型間にポリウレタン等を注型又
は注入して歯部付きの無端ベルトを製造するに際
し、予め歯部の歯形形状に予備成形した補強布
を、内金型外周の成形用凹凸形状に合わせて装着
しておき、成形時に歯部表面に沿つて補強布を接
着するようにしたものが特公昭49−5912号公報等
において既に提案されている。このように歯部表
面に補強布を設けておけば、この補強布が歯部を
保護し耐久性が向上すると共に、補強布が咬合い
時の緩衝用として作用し、発熱、騒音の発生を抑
える利点がある。 Therefore, when producing an endless belt with toothed parts by casting or injecting polyurethane etc. between the inner and outer molds, reinforcing cloth preformed in the tooth shape of the toothed part is used to form the uneven shape of the outer periphery of the inner mold. Japanese Patent Publication No. 49-5912 and other publications have already proposed a method in which reinforcing cloth is attached along the tooth surface during molding. By providing reinforcing cloth on the tooth surface in this way, this reinforcing cloth protects the tooth and improves durability, and the reinforcing cloth also acts as a buffer during occlusion, reducing heat generation and noise generation. There is an advantage in suppressing
（発明が解決しようとする問題点）
しかし、従来の製造方法では、予備成形した補
強布を金型の成形用凹凸部の形状に沿つて正しい
位置に装着しておかなければならず、従つて、補
強布を金型に巻付ける際の作業が非常に煩雑であ
り、位置ずれがあれば、歯部の形状が一定しない
という欠点があつた。また金型と補強布との間に
隙間があれば、歯部等に気泡が発生しやすくな
り、無気泡の無端ベルトを製造することが困難で
ある。更に、従来は予備成形した補強布を使用す
るだけであつて、補強布自体に目止め処理を施し
ていないため、注型又は注入したポリウレタン等
が補強布の表面側まで局部的に浸透することがあ
り、補強布による緩衝作用に局部的なバラツキが
生じる等、品質が一定しないという問題があつ
た。(Problem to be Solved by the Invention) However, in the conventional manufacturing method, the preformed reinforcing cloth must be attached to the correct position along the shape of the molding uneven part of the mold. However, the work involved in wrapping the reinforcing cloth around the mold was very complicated, and if there was any misalignment, the shape of the teeth would be inconsistent. Furthermore, if there is a gap between the mold and the reinforcing cloth, air bubbles are likely to occur in the teeth, etc., making it difficult to manufacture a bubble-free endless belt. Furthermore, in the past, only preformed reinforcing fabric was used, and the reinforcing fabric itself was not sealed, so polyurethane, etc. cast or injected could locally penetrate to the surface of the reinforcing fabric. There was a problem that the quality was inconsistent, such as local variations in the cushioning effect of the reinforcing cloth.
本発明は、このような従来の問題点に鑑み、簡
単な作業で補強布を金型の突起部成形用の凹凸形
状に確実に沿わせることができ、液状注型材料が
補強布の表面側に浸透することがなく、しかも内
部に気泡が発生しない無気泡の無端ベルトを製造
することを目的とするものである。 In view of these conventional problems, the present invention makes it possible to reliably align the reinforcing cloth with the uneven shape for molding the protrusions of the mold with a simple operation, and allows the liquid casting material to be applied to the surface side of the reinforcing cloth. The object of the present invention is to manufacture a bubble-free endless belt that does not penetrate into the water and does not generate bubbles inside.
（問題点を解決するための手段）
本発明は、かかる目的を達成するための手段と
して、内外金型８，９の内、突起部３，２５，２
９成形用の凹凸形状を有する金型側に、目止め処
理された伸縮可能な補強布４，２７，３１を装着
する工程と、この補強布４，２７，３１に対して
前記凹凸形状と反対側に抗張体６を装着する工程
と、補強布４，２７，３１の幅方向の両端部を前
記凹凸形状を有する金型側に固定して両端部を封
じる工程と、内外金型８，９間の前記抗張体６側
の空間１０に液状注型材料１６を注型又は注入す
る工程と、この液状注型材料１６を加圧すること
により補強布４，２７，３１を伸張させて金型の
凹凸形状に沿わせる工程とを有し、これによつて
無端ベルトを製造するものである。(Means for Solving the Problems) The present invention provides, as a means for achieving the above object, protrusions 3, 25, 2 of the inner and outer molds 8, 9.
9. A step of attaching filler-treated stretchable reinforcing cloths 4, 27, and 31 to the mold side having an uneven shape for molding, and a step of attaching the reinforcing cloths 4, 27, and 31 opposite to the uneven shape. a step of attaching the tensile member 6 to the side; a step of fixing both ends of the reinforcing cloths 4, 27, 31 in the width direction to the mold side having the uneven shape to seal both ends; A process of casting or injecting liquid casting material 16 into the space 10 on the tensile body 6 side between 9 and 9, and stretching the reinforcing fabrics 4, 27, 31 by pressurizing this liquid casting material 16, The method includes a step of making the belt conform to the uneven shape of the mold, thereby producing an endless belt.
（実施例）
以下、図示の各実施例について本発明に係る無
端ベルトの製造方法を説明する。(Example) Hereinafter, a method for manufacturing an endless belt according to the present invention will be described with respect to each of the illustrated examples.
実施例 １
第３図は、ベルト本体１の内周面側にランド部
２を介して歯部３が周方向に等間隔おきに一体形
成され、その歯部３及びランド部２の表面に補強
布４が設けられた無端ベルト５を示す。ベルト本
体１の内部には抗張体６が螺旋状に埋込まれてい
る。Embodiment 1 FIG. 3 shows that tooth portions 3 are integrally formed on the inner peripheral surface side of a belt body 1 via land portions 2 at equal intervals in the circumferential direction, and the surfaces of the tooth portions 3 and land portions 2 are reinforced. An endless belt 5 provided with a cloth 4 is shown. A tensile member 6 is spirally embedded inside the belt body 1.
第４図は無端ベルト５の製造に使用する金型装
置７を示す。即ち、第４図において、８は内金
型、９は外金型で、これら内外金型８，９は所定
の空間１０を形成すべく同心状に設けられ、かつ
分離自在である。内外金型８，９の上下両端には
上蓋１１と下蓋１２とが着脱自在に設けられてお
り、この上下蓋１１，１２により内外金型８，９
間の空間１０を密閉するようになつている。また
上蓋１１には空間１０に連通するように脱気孔１
３が形成され、その脱気孔１３には着脱自在に開
閉ネジ１４が螺着されている。１５は液状注型材
料１６を入れた注型用容器で、注型用管１７を介
して外金型９側に取付けられ、ピストン１８を加
圧することにより液状注型材料１６を管１７から
内外金型８，９の空間１０に注型できるようにな
つている。内金型８の外周には、第１図及び第２
図に示すように、無端ベルト５の歯部３を成形す
るための凹凸部１９が全周にわたつて設けられて
いる。 FIG. 4 shows a mold device 7 used for manufacturing the endless belt 5. As shown in FIG. That is, in FIG. 4, 8 is an inner mold, and 9 is an outer mold. These inner and outer molds 8 and 9 are provided concentrically to form a predetermined space 10, and are separable. An upper lid 11 and a lower lid 12 are removably provided at both upper and lower ends of the inner and outer molds 8 and 9, and these upper and lower lids 11 and 12 close the inner and outer molds 8 and 9.
The space 10 between them is sealed. In addition, a deaeration hole 1 is provided in the upper lid 11 so as to communicate with the space 10.
3 is formed, and an opening/closing screw 14 is removably screwed into the deaeration hole 13. 15 is a casting container containing a liquid casting material 16, which is attached to the outer mold 9 side via a casting pipe 17, and by pressurizing a piston 18, the liquid casting material 16 is poured into and out of the pipe 17. It is designed to be able to be cast into the spaces 10 of the molds 8 and 9. The outer periphery of the inner mold 8 is marked with the marks shown in Figs.
As shown in the figure, an uneven portion 19 for forming the tooth portion 3 of the endless belt 5 is provided over the entire circumference.
無端ベルト５の製造の際には、伸縮可能なナイ
ロン織布、ポリエステル織布等の補強布４を用
い、これに液状注型材料１６と同一で架橋可能な
材料、例えば液状注型材料１６としてポリウレタ
ンを用いる場合にはポリウレタンの溶液を塗布
（乾燥時、塗布量100〜500ｇｆ／m2）して目止め
処理を施す。次に、この補強布４を裁断し、ミシ
ンによる縫着、熱プレスによる接着又は融着等に
よつて筒状エンドレス加工した後、金型装置７の
内金型８に外嵌状に装着し、その補強布４の外側
から内金型８に抗張体６を螺旋状に巻着する。抗
張体６としては芳香族ポリアミドの繊維ロープを
使用する。内金型８に対する補強布４、抗張体６
の装着が完了すれば、この内金型８を外金型９内
に挿入して内外金型８，９を所定の空間１０がで
きるように組合わせる。この時、補強布４の幅方
向の両端部を内金型８の上下両端から中心側に折
曲げておき、この内金型８と上下蓋１１，１２と
の間で補強布４の両端部を挟込んで固定して両端
部を封じる。そして、内外金型８，９全体を約
110℃に加熱した後、注型用容器１５内の液状注
型材料１６をピストン１８で圧力Ｐ（２Kgｆ／cm2
以下）により加圧し、ポリウレタンポリマーと硬
化剤とを混合した液状注型材料１６を注型用管１
７を経て内外金型８，９間の空間１０に充填す
る。なお液状注型材料１６は粘度2000〜4000cps
である。空間１０に液状注型材料１６を充填して
行くと、それが上蓋１１の脱気孔１３から流出す
るので、その流出した時点で脱気孔１３に開閉ネ
ジ１４を螺着し、脱気孔１３を密閉する。そし
て、この密閉後、110℃×60min×10〜30Kgｆ／
cm2の加圧成形により液状注型材料１６を介して補
強布４に圧力を加える。すると補強布４は目止め
処理されており、液状注型材料１６が浸透しない
ので、圧力によつて伸張しながら内金型８外周の
凹凸部１９の形状に沿つて変形し、内金型８の外
周面に隙間なく確実に密着する。この加圧時に
も、補強布４の両端部を内金型８と上下蓋１１，
１２との間で固定しているので、加圧によつて補
強布４が動いたりずれたりすることはない。ま
た、補強布４の両端部を内金型８と上下蓋１１，
１２との間に挟んで封じているので、加圧時に注
型材料１６が内金型８の凹凸形状側にもれること
もない。注型材料１６が硬化すれば、上下蓋１
１，１２を外し内外金型８，９を分離した後、成
形品を脱型し、その成形品を所定の製品幅に輪切
りすることによつて、無端ベルト５を製造でき
る。 When manufacturing the endless belt 5, a stretchable reinforcing cloth 4 such as a woven nylon fabric or a woven polyester fabric is used, and a material that is the same as the liquid casting material 16 and can be crosslinked, for example, as the liquid casting material 16, is used. When polyurethane is used, sealing treatment is performed by applying a polyurethane solution (coating amount: 100 to 500 gf/m 2 when dry). Next, this reinforcing cloth 4 is cut and processed into an endless cylindrical shape by sewing with a sewing machine, adhering with a heat press, or fusing, and then attached to the inner mold 8 of the mold device 7 in an outer-fitting manner. , the tensile member 6 is spirally wound around the inner mold 8 from the outside of the reinforcing cloth 4. As the tensile member 6, an aromatic polyamide fiber rope is used. Reinforcement cloth 4 and tensile material 6 for inner mold 8
When the installation is completed, the inner mold 8 is inserted into the outer mold 9, and the inner and outer molds 8 and 9 are combined so that a predetermined space 10 is formed. At this time, both ends of the reinforcing cloth 4 in the width direction are bent from both upper and lower ends of the inner mold 8 toward the center, and both ends of the reinforcing cloth 4 are folded between the inner mold 8 and the upper and lower lids 11 and 12. Pinch and secure to seal both ends. Then, remove the entire inner and outer molds 8 and 9 by approx.
After heating to 110°C, the liquid casting material 16 in the casting container 15 is heated to a pressure P (2 kgf/cm 2
The liquid casting material 16, which is a mixture of a polyurethane polymer and a curing agent, is applied to the casting tube 1 by applying pressure using the following method.
7 and fills the space 10 between the inner and outer molds 8 and 9. The liquid casting material 16 has a viscosity of 2000 to 4000 cps.
It is. When the space 10 is filled with the liquid casting material 16, it flows out from the deaeration hole 13 of the upper lid 11. At the point when it flows out, the opening/closing screw 14 is screwed into the deaeration hole 13, and the deaeration hole 13 is sealed. do. After this sealing, 110℃×60min×10~30Kgf/
Pressure is applied to the reinforcing fabric 4 through the liquid casting material 16 by pressure molding of cm 2 . Then, since the reinforcing cloth 4 is sealed and does not allow the liquid casting material 16 to penetrate, it expands under pressure and deforms along the shape of the uneven portion 19 on the outer periphery of the inner mold 8. firmly adheres to the outer circumferential surface without any gaps. During this pressurization, both ends of the reinforcing cloth 4 are connected to the inner mold 8 and the upper and lower lids 11,
12, the reinforcing cloth 4 will not move or shift due to pressure. In addition, both ends of the reinforcing cloth 4 are connected to the inner mold 8 and the upper and lower lids 11,
Since the molding material 16 is sandwiched and sealed between the molding material 12 and the molding material 12, the casting material 16 does not leak into the uneven shape side of the inner mold 8 when pressurized. Once the casting material 16 has hardened, the upper and lower lids 1
After removing the molds 1 and 12 and separating the inner and outer molds 8 and 9, the molded product is removed from the mold, and the endless belt 5 can be manufactured by cutting the molded product into rounds of a predetermined product width.
このようにして製造した無端ベルト５は、補強
布４が内金型８の凹凸部１９の形状に沿つて簡単
かつ確実に密着するため、内部に気泡が発生する
ことがなく、無気泡のものを容易に製造できる。
また補強布４は予め目止め処理を行なつているか
ら、補強布４内に液状注型材料１６が浸透するこ
とがなく、液状注型材料１６の局部的な浸透によ
る品質のバラツキを防止できる。従つて、製造時
の作業が容易であると共に、高品質の無端ベルト
５を製造できる。 The endless belt 5 manufactured in this manner is free from air bubbles because the reinforcing cloth 4 adheres easily and reliably along the shape of the uneven portions 19 of the inner mold 8. can be easily manufactured.
Furthermore, since the reinforcing cloth 4 is sealed in advance, the liquid casting material 16 does not penetrate into the reinforcing cloth 4, and it is possible to prevent quality variations due to local penetration of the liquid casting material 16. . Therefore, the manufacturing operation is easy and the endless belt 5 of high quality can be manufactured.
補強布４はポリウレタンの溶液を塗布し乾燥さ
せ目止め処理した後、内金型８の凹凸部１９に合
わせて予め歯形加工したものを使用しても良い
し、また波状等に半歯形加工したものを使用して
も良い。このように歯形加工又は半歯形加工を施
した補強布４を使用する場合でも、補強布４自体
が伸縮可能であるから、加圧成形時の圧力で補強
布４を内金型８に密着させることができ、従つ
て、内金型８に装着する際に、補強布４を凹凸部
１９の形状に完全に一致させる必要がなく、作業
が容易である。 The reinforcing cloth 4 may be coated with a polyurethane solution, dried and sealed, and then processed into a tooth shape in advance to match the uneven portions 19 of the inner mold 8, or may be formed into a semi-toothed shape into a wave shape or the like. You may use something. Even when using the reinforcing cloth 4 that has been subjected to tooth-shaped processing or semi-tooth-shaped processing, since the reinforcing cloth 4 itself can be expanded and contracted, the reinforcing cloth 4 can be brought into close contact with the inner mold 8 by the pressure during pressure molding. Therefore, when the reinforcing cloth 4 is attached to the inner mold 8, it is not necessary to completely match the shape of the uneven portion 19, and the work is easy.
実施例 ２
補強布４は不浸透性エラストマー材料で目止め
処理を行なうが、第５図に示すようにポリウレタ
ン等をフイルム又はシート状にした目止め材２０
を使用し、これを熱プレス２１により補強布４の
表面に熱融着によつて積層加工を施しても良い。
なお、この場合、補強布４及び目止め材２０は、
ロール２２，２３に夫々巻取つておき、この両ロ
ール２２，２３から矢印方向に引出した部分を上
下に重ね合わせた状態で順次熱プレス２１により
積層加工する。なお、目止め材２０は厚さ0.01〜
1.00mm程度のものが使用される。Example 2 The reinforcing cloth 4 is sealed with an impermeable elastomer material, and as shown in FIG. 5, a sealing material 20 made of polyurethane or the like in the form of a film or sheet is used.
may be used and laminated onto the surface of the reinforcing cloth 4 by heat fusion using the heat press 21.
In addition, in this case, the reinforcing cloth 4 and the sealing material 20 are
The film is wound up on rolls 22 and 23, respectively, and the parts pulled out from both rolls 22 and 23 in the direction of the arrows are layered one after another by a hot press 21 in a state where they are stacked vertically. In addition, the sealing material 20 has a thickness of 0.01~
A diameter of about 1.00mm is used.
実施例 ３
第６図及び第７図は、内金型８の外周を平滑面
とし、外金型９の内周面に凹凸部２４を形成した
金型装置７を使用する場合を示す。この場合に
は、補強布４を外金型９の凹凸部２４に沿つて内
周側に巻付け、その幅方向の両端部を外金型９と
上下蓋１１，１２との間で挟んで固定する。一
方、抗張体６は内金型８の外周面に巻付ける。Embodiment 3 FIGS. 6 and 7 show a case in which a mold device 7 is used in which the outer periphery of the inner mold 8 is a smooth surface and the inner peripheral surface of the outer mold 9 is formed with uneven portions 24. In this case, the reinforcing cloth 4 is wrapped around the inner circumference along the uneven portion 24 of the outer mold 9, and both widthwise ends of the reinforcing cloth 4 are sandwiched between the outer mold 9 and the upper and lower lids 11 and 12. Fix it. On the other hand, the tensile member 6 is wound around the outer peripheral surface of the inner mold 8.
このようにして成形すれば、外周側に歯部３、
補強布４の付いた成型品ができるので、その後、
その成型品を所定の幅で輪切りした後、内外を反
転させることにより、第３図に示す無端ベルト５
が得られる。 If molded in this way, the teeth 3 on the outer circumferential side,
A molded product with reinforcing cloth 4 is created, so after that,
After cutting the molded product into rings with a predetermined width, the endless belt 5 shown in FIG.
is obtained.
実施例 ４
第８図はベルト本体１の内外周面に対称に歯部
３，２５を備えた対称性、第９図は内外の歯部
３，２５が周方向にずれた非対称型の無端ベルト
２６を夫々示す。これらの無端ベルト２６におい
ても、その両側の歯部３，２５表面をおおうよう
に補強布４，２７を設けており、これは次のよう
にして製造する。Embodiment 4 Fig. 8 shows a symmetrical endless belt in which the inner and outer circumferential surfaces of the belt body 1 are provided with teeth 3, 25 symmetrically, and Fig. 9 shows an asymmetrical endless belt in which the inner and outer teeth 3, 25 are shifted in the circumferential direction. 26 are shown respectively. These endless belts 26 are also provided with reinforcing cloths 4, 27 so as to cover the surfaces of the teeth 3, 25 on both sides thereof, and are manufactured as follows.
即ち、この場合には、第１０図に示すように内
外金型８，９に歯部３，２５成型用の凹凸部１
９，２８を備えたものを使用し、内金型８の外周
面に補強布４及び抗張体６を巻付け、外金型９の
内周面に補強布２７を巻付けて成形する。その後
の作業工程は前述と同様である。 That is, in this case, as shown in FIG.
9 and 28, the reinforcing cloth 4 and tensile material 6 are wrapped around the outer peripheral surface of the inner mold 8, and the reinforcing cloth 27 is wrapped around the inner peripheral surface of the outer mold 9 for molding. The subsequent work steps are the same as described above.
実施例 ５
第１１図はベルト本体１の内周面に歯部３、外
周面にＶ字状の突条部２９を夫々一体形成した無
端ベルト３０を示し、この場合にも歯部３及び突
条部２９の表面を補強布４，３１でおおうように
している。Embodiment 5 FIG. 11 shows an endless belt 30 in which teeth 3 are integrally formed on the inner circumferential surface of the belt body 1, and V-shaped protrusions 29 are integrally formed on the outer circumferential surface. The surface of the striped portion 29 is covered with reinforcing cloths 4, 31.
この無端ベルト３０の製造に際しては、第１２
図に示すように外金型９の内周面に、突条部２９
成形用の凹凸部３２を形成したものを使用し、実
施例４と同様の順序で作業を行なう。 When manufacturing this endless belt 30, the 12th
As shown in the figure, a protrusion 29 is provided on the inner peripheral surface of the outer mold 9.
The work is carried out in the same order as in Example 4, using a molding material having concavo-convex portions 32 formed thereon.
以上、本発明方法の各実施例を例示したが、そ
れに使用する材料としては、次のようなものがあ
る。 Each embodiment of the method of the present invention has been illustrated above, and the materials used therein include the following.
補強布４，２７，３１としては、バイヤスカツ
トした織布、伸縮性の大きい織糸で織つた織布、
不織布その他があり、また織布の場合には、弾性
繊維、ゴム糸、捲縮加工糸を織糸として、平織、
綾織、朱子織したもの等が用いられる。 The reinforcing fabrics 4, 27, and 31 include bias-cut woven fabrics, woven fabrics woven with highly elastic yarns,
There are non-woven fabrics and others, and in the case of woven fabrics, elastic fibers, rubber threads, crimped threads are used as woven threads, plain weaves,
Twill weave, satin weave, etc. are used.
目止め処理は、補強布４，２７，３１の耐屈曲
性と騒音性を考慮して、その処理方法を決める。
その処理材としては、ポリウレタンの溶液、或い
はポリウレタン等のフイルム又はシート、微多孔
性シート等がある。これは、注型材料１６の同一
のものを使用する他、異なるものであつて、接着
可能な材料を用いることもできる。 The sealing treatment method is determined in consideration of the bending resistance and noise resistance of the reinforcing cloths 4, 27, and 31.
Examples of the treatment material include a polyurethane solution, a polyurethane film or sheet, and a microporous sheet. In addition to using the same casting material 16, it is also possible to use a different adhesive material.
液状注型材料１６は、ポリウレタンポリマー等
の熱硬化型液状樹脂、液状ゴム、プラスチゾル、
熱溶融した熱可塑性樹脂等がある。また、この液
状注型材料１６の製品にしたときの硬さは、JIS
Ａ硬さ70〜100度が適当であるが、デユロメータ
A20〜デユロメータD80の範囲であれば良い。 The liquid casting material 16 is a thermosetting liquid resin such as polyurethane polymer, liquid rubber, plastisol,
There are heat-molten thermoplastic resins, etc. In addition, the hardness of this liquid casting material 16 when made into a product is JIS
A hardness of 70 to 100 degrees is appropriate, but the durometer
A range of A20 to D80 is fine.
抗張体６は、芳香性ポリアミド、ナイロン、ポ
リエステル等の合成繊維ロープ、スチールワイヤ
ー等が用いられる。 As the tensile member 6, a synthetic fiber rope such as aromatic polyamide, nylon, or polyester, steel wire, or the like is used.
無端ベルトの構造、形状は実施例のものに限定
されず、ベルト本体１の側面に補強布を有するも
のであれば、その製造に広く採用できる。 The structure and shape of the endless belt are not limited to those of the embodiments, and any belt having reinforcing cloth on the side surface of the belt body 1 can be widely adopted for its manufacture.
補強布４，２７，３１の表面に簿いシリコン、
フツ素等の合成樹脂又はエラストマーの層を設け
ることも可能であり、このようにすれば、補強布
４，２７，３１表面の摩擦係数を任意に変えるこ
とができ、ベルトの利用分野が広がる。 Silicone on the surface of the reinforcing cloth 4, 27, 31,
It is also possible to provide a layer of synthetic resin such as fluorine or elastomer, and in this way, the coefficient of friction on the surface of the reinforcing cloths 4, 27, 31 can be arbitrarily changed, expanding the range of applications of the belt.
（発明の効果）
本発明は、目止め処理された伸縮可能な補強布
を、突起部成形用の凹凸形状を有する金型側に装
着しておき、内外金型間の空間に注型又は注入し
た液状注型材料を加圧することにより、補強布を
伸張させて金型の凹凸形状に沿わせるので、従来
のように補強布を金型に装着する際に、補強布自
体を金型の凹凸形状に沿つて予備成形しておき、
その補強布を金型の凹凸形状に完全に一致させる
必要がない。従つて、補強布の予備成形工程が必
要であつて、作業が容易であると共に、補強布を
金型の凹凸形状に確実に密着させることができ
る。また補強布は凹凸形状を有する金型側に幅方
向の両端部を固定して両端部を封じているため、
加圧時に補強布が動くこともないし、注型材料が
補強布の幅方向両端部から金型の凹凸形状側にも
れることもなく、高品質の無端ベルトを製造でき
る。更に補強布の金型に対する密着性が良いの
で、脱気を確実にでき、成形時に内部に気泡が入
る惧れがなく、無気泡の無端ベルトを製造でき
る。また補強布は目止め処理を施しているので、
加圧時に液状注型材料が補強布内に浸透して局部
的に表面側に現われる等の惧れがなく、従つて、
補強布による緩衝作用が全長にわたつて同じにな
り、品質的に優れたベルトを提供できる。(Effects of the Invention) The present invention is characterized in that a stretchable reinforcing cloth treated with sealing is attached to the side of a mold having an uneven shape for forming protrusions, and is cast or injected into the space between the inner and outer molds. By pressurizing the liquid casting material, the reinforcing cloth is stretched to conform to the uneven shape of the mold. Preform it according to the shape,
There is no need for the reinforcing cloth to perfectly match the uneven shape of the mold. Therefore, a step of preforming the reinforcing cloth is necessary, and the work is easy, and the reinforcing cloth can be reliably brought into close contact with the uneven shape of the mold. In addition, both ends of the reinforcing cloth in the width direction are fixed to the mold side, which has an uneven shape, and both ends are sealed.
The reinforcing cloth does not move during pressurization, and the casting material does not leak from both widthwise ends of the reinforcing cloth into the uneven shape side of the mold, making it possible to manufacture a high-quality endless belt. Furthermore, since the reinforcing cloth has good adhesion to the mold, degassing can be ensured, and there is no risk of air bubbles entering the inside during molding, making it possible to manufacture a bubble-free endless belt. In addition, the reinforcing fabric is sealed, so
There is no risk that the liquid casting material will penetrate into the reinforcing fabric and appear locally on the surface side when pressurized, and therefore,
The cushioning effect of the reinforcing fabric is the same over the entire length, making it possible to provide a belt with excellent quality.
第１図は本発明の第１実施例を示す金型の要部
断面図、第２図は同断面平面図、第３図は同ベル
トの斜視図、第４図は同金型装置の断面図、第５
図は本発明の第２実施例を示す説明図、第６図は
本発明の第３実施例を示す金型の要部断面図、第
７図は同断面平面図、第８図及び第９図は本発明
の第４実施例を示すベルトの斜視図、第１０図は
同金型の要部断面図、第１１図は本発明の第５実
施例を示すベルトの斜視図、第１２図は同金型の
要部断面図である。
１……ベルト本体、２……ランド部、３，２５
……歯部、４，２７，３１……補強布、５，２
６，３０……無端ベルト、６……抗張体、８……
内金型、９……外金型、１０……空間、１１……
上蓋、１２……下蓋、１６……液状注型材料、１
９，２４，２８，３２……凹凸部。
Fig. 1 is a cross-sectional view of the main parts of a mold showing a first embodiment of the present invention, Fig. 2 is a plan view of the cross-section, Fig. 3 is a perspective view of the belt, and Fig. 4 is a cross-section of the mold device. Figure, 5th
The figure is an explanatory diagram showing a second embodiment of the present invention, FIG. 6 is a cross-sectional view of main parts of a mold showing a third embodiment of the present invention, FIG. 7 is a plan view of the same cross-section, and FIGS. The figure is a perspective view of a belt showing a fourth embodiment of the present invention, FIG. 10 is a sectional view of essential parts of the mold, FIG. 11 is a perspective view of a belt showing a fifth embodiment of the invention, and FIG. 12 is a perspective view of a belt showing a fourth embodiment of the present invention. is a sectional view of the main parts of the same mold. 1... Belt body, 2... Land portion, 3, 25
...Tooth portion, 4,27,31...Reinforcement cloth, 5,2
6,30... Endless belt, 6... Tensile body, 8...
Inner mold, 9... Outer mold, 10... Space, 11...
Upper lid, 12...Lower lid, 16...Liquid casting material, 1
9, 24, 28, 32... uneven parts.
Claims (1)
３，２５，２９に沿うように該ベルト本体１に補
強布４，２７，３１を設けた伝動用無端ベルトの
製造方法において、内外金型８，９の内、突起部
３，２５，２９成形用の凹凸形状を有する金型側
に、目止め処理された伸縮可能な補強布４，２
７，３１を装着する工程と、この補強布４，２
７，３１に対して前記凹凸形状と反対側に抗張体
６を装着する工程と、補強布４，２７，３１の幅
方向の両端部を前記凹凸形状を有する金型側に固
定して両端部を封じる工程と、内外金型８，９間
の前記抗張体６側の空間１０に液状注型材料１６
を注型又は注入する工程と、この液状注型材料１
６を加圧することにより補強布４，２７，３１を
伸張させて金型の凹凸形状に沿わせる工程とを有
することを特徴とする伝動用無端ベルトの製造方
法。 ２ 内金型８外周の凹凸形状側に補強布４を巻付
ける工程と、この補強布４の外周から内金型８に
抗張体６を巻付ける工程とを有する特許請求の範
囲第１項記載の伝動用無端ベルトの製造方法。 ３ 外金型９内周の凹凸形状側に補強布４，２
７，３１を内側から装着する工程、内金型８の外
周に抗張体６を巻付ける工程とを有することを特
徴とする特許請求の範囲第１項記載の伝動用無端
ベルトの製造方法。 ４ 内金型８外周の凹凸形状側に補強布４を巻付
ける工程と、この補強布４の外周から内金型８に
抗張体６を巻付ける工程と、外金型９内周の凹凸
形状側に補強布２７，３１を内側から装着する工
程とを有する特許請求の範囲第１項記載の伝動用
無端ベルトの製造方法。 ５ 補強布４，２７，３１の目止め処理に、液状
注型材料１６と同一で架橋可能な材料、又は液状
注型材料１６と異なり接着可能な材料を使用する
ことを特徴とする特許請求の範囲第１項乃至第４
項の何れかに記載の伝動用無端ベルトの製造方
法。 ６ 補強布４，２７，３１の幅方向の両端部を、
金型８，９とこの金型８，９の両端を塞ぐ蓋１
１，１２との間に挟込んで固定することを特徴と
する特許請求の範囲第１項乃至第４項の何れかに
記載の伝動用無端ベルトの製造方法。[Claims] 1. A method of manufacturing an endless belt for power transmission in which reinforcing fabrics 4, 27, 31 are provided on the belt body 1 so as to follow the protrusions 3, 25, 29 integrally formed on the side surface of the belt body 1. Of the inner and outer molds 8 and 9, stretchable reinforcing cloths 4 and 2 which have been sealed are placed on the mold side having an uneven shape for molding the projections 3, 25 and 29.
7, 31 and this reinforcing cloth 4, 2
7, 31, the tensile member 6 is attached to the side opposite to the uneven shape, and both ends of the reinforcing cloth 4, 27, 31 in the width direction are fixed to the side of the mold having the uneven shape. A liquid casting material 16 is added to the space 10 on the tensile body 6 side between the inner and outer molds 8 and 9.
The process of casting or injecting this liquid casting material 1
6. A method for producing an endless belt for power transmission, comprising the step of stretching reinforcing cloths 4, 27, 31 by applying pressure to conform to the uneven shape of a mold. 2. Claim 1 comprising the steps of wrapping a reinforcing cloth 4 around the uneven shape side of the outer periphery of the inner mold 8, and wrapping the tensile body 6 around the inner mold 8 from the outer periphery of the reinforcing cloth 4. The method for manufacturing the endless belt for power transmission described above. 3 Reinforcement cloth 4, 2 on the uneven shape side of the inner circumference of the outer mold 9
The method for manufacturing an endless power transmission belt according to claim 1, comprising the steps of attaching the inner mold 7 and the inner mold 8 from the inside, and wrapping the tensile member 6 around the outer periphery of the inner mold 8. 4. A step of wrapping the reinforcing cloth 4 around the uneven shape side of the outer periphery of the inner mold 8, a step of wrapping the tensile material 6 around the inner mold 8 from the outer periphery of this reinforcing cloth 4, and a step of wrapping the unevenness of the inner periphery of the outer mold 9. The method for manufacturing an endless transmission belt according to claim 1, further comprising the step of attaching reinforcing cloths 27, 31 to the shaped sides from the inside. 5. A patent claim characterized in that a crosslinkable material that is the same as the liquid casting material 16 or a bondable material that is different from the liquid casting material 16 is used for sealing the reinforcing cloths 4, 27, and 31. Range 1st to 4th
A method for producing an endless belt for power transmission according to any one of paragraphs 1 and 2. 6 Both ends of the reinforcing cloth 4, 27, 31 in the width direction,
Molds 8 and 9 and a lid 1 that closes both ends of the molds 8 and 9
1 and 12 to fix the endless belt.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4575187A JPS63209909A (en) | 1987-02-27 | 1987-02-27 | Manufacture of endless transmission belt |
| EP88102307A EP0280175B1 (en) | 1987-02-27 | 1988-02-17 | Process for producing endless belt |
| DE88102307T DE3880710T2 (en) | 1987-02-27 | 1988-02-17 | Manufacturing process for endless belts. |
| US07/479,191 US5066344A (en) | 1987-02-27 | 1990-02-13 | Process for producing an endless belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4575187A JPS63209909A (en) | 1987-02-27 | 1987-02-27 | Manufacture of endless transmission belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63209909A JPS63209909A (en) | 1988-08-31 |
| JPH0362536B2 true JPH0362536B2 (en) | 1991-09-26 |
Family
ID=12728010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4575187A Granted JPS63209909A (en) | 1987-02-27 | 1987-02-27 | Manufacture of endless transmission belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63209909A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10716912B2 (en) | 2015-03-31 | 2020-07-21 | Fisher & Paykel Healthcare Limited | User interface and system for supplying gases to an airway |
| US11324908B2 (en) | 2016-08-11 | 2022-05-10 | Fisher & Paykel Healthcare Limited | Collapsible conduit, patient interface and headgear connector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008023177B4 (en) * | 2008-05-10 | 2019-06-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Drive device for at least one auxiliary machine unit by means of a belt |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833443A (en) * | 1981-08-24 | 1983-02-26 | Mitsuboshi Belting Ltd | Preparation of toothed belt |
| JPS61223352A (en) * | 1973-09-07 | 1986-10-03 | ゼ ゲ−ツ ラバ− コムパニ− | Endless forced driving power transmission belt and manufacture thereof |
-
1987
- 1987-02-27 JP JP4575187A patent/JPS63209909A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61223352A (en) * | 1973-09-07 | 1986-10-03 | ゼ ゲ−ツ ラバ− コムパニ− | Endless forced driving power transmission belt and manufacture thereof |
| JPS5833443A (en) * | 1981-08-24 | 1983-02-26 | Mitsuboshi Belting Ltd | Preparation of toothed belt |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10716912B2 (en) | 2015-03-31 | 2020-07-21 | Fisher & Paykel Healthcare Limited | User interface and system for supplying gases to an airway |
| US11904097B2 (en) | 2015-03-31 | 2024-02-20 | Fisher & Paykel Healthcare Limited | User interface and system for supplying gases to an airway |
| US11324908B2 (en) | 2016-08-11 | 2022-05-10 | Fisher & Paykel Healthcare Limited | Collapsible conduit, patient interface and headgear connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63209909A (en) | 1988-08-31 |
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