JPS63214538A - Endless transmission belt - Google Patents
Endless transmission beltInfo
- Publication number
- JPS63214538A JPS63214538A JP4575287A JP4575287A JPS63214538A JP S63214538 A JPS63214538 A JP S63214538A JP 4575287 A JP4575287 A JP 4575287A JP 4575287 A JP4575287 A JP 4575287A JP S63214538 A JPS63214538 A JP S63214538A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing cloth
- belt
- buffer layer
- mold
- elastomer material
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 31
- 229920001971 elastomer Polymers 0.000 claims abstract description 29
- 239000000806 elastomer Substances 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 7
- 239000000057 synthetic resin Substances 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 abstract description 55
- 238000005452 bending Methods 0.000 abstract description 8
- 229920002635 polyurethane Polymers 0.000 abstract description 7
- 239000004814 polyurethane Substances 0.000 abstract description 7
- 239000004433 Thermoplastic polyurethane Substances 0.000 abstract description 4
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 8
- 238000005266 casting Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002759 woven fabric Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920003233 aromatic nylon Polymers 0.000 description 1
- 230000003139 buffering effect Effects 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
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 elastic fibers Substances 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 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
- 239000012466 permeate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、伝動用無端ベルトに関し、ベルト使用時の屈
曲疲労を緩和し、耐屈曲性の改善と騒音防止とを図り得
るようにしたものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an endless belt for power transmission, and is capable of alleviating bending fatigue during belt use, improving bending resistance, and preventing noise. It is.
（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っている。特に
、液状注型ポリウレタン等の液状注型エラストマー材料
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, toothed endless belts made of liquid cast elastomer materials such as liquid cast polyurethane are ideal for use in power transmission systems and conveyance systems where dirt from rubber debris is avoided due to the characteristics of the material. ing.
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、歯部を液状注型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、その摩擦抵抗によって著しく発熱す
ると共に、摩損によって歯部が欠ける等、耐久性の点で
は問題があり、またベルトの走行時にプーリーの歯部と
の咬合いによって騒音が発生する欠点があった。In this type of endless belt with teeth made of polyurethane, etc., if the teeth are simply formed integrally with the belt body using liquid cast polyurethane, etc., the teeth will be damaged when engaged with the teeth of the pulley. There were problems in terms of durability, such as significant heat generation due to frictional resistance and chipping of the teeth due to abrasion, and there was also a drawback that noise was generated due to engagement with the teeth of the pulley when the belt ran.
そこで、ポリウレタン等の液状注型エラストマー材料を
使用してベルト本体及び歯部を一体形成した無端ベルト
において、その歯部表面を覆うように補強布を装着した
ものが特公昭４９−５９１２号公報等により提案されて
いる。このように歯部表面に補強布を装着しておけば、
ベルト使用時に補強布が歯部を保護して剪断及び摩耗等
に対する抵抗性が増し、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, Japanese Patent Publication No. 49-5912 discloses an endless belt in which the belt body and teeth are integrally formed using a liquid cast elastomer material such as polyurethane, and a reinforcing cloth is attached to cover the surface of the teeth. proposed by. If you attach reinforcing cloth to the tooth surface in this way,
The reinforcing fabric protects the teeth when the belt is used, increasing resistance to shearing and abrasion, improving durability, and the reinforcing fabric acts as a buffer during occlusion, reducing heat generation and noise generation. There is.
（発明が解決しようとする問題点）
しかし、この補強布を歯部の表面に装着しただけの無端
ベルトでは、その補強布の材質、厚さ等によっては耐屈
曲性、騒音の低減の点で未だ十分とは云えず、その改善
が望まれている。(Problem to be Solved by the Invention) However, with an endless belt in which this reinforcing cloth is simply attached to the surface of the teeth, bending resistance and noise reduction may be affected depending on the material, thickness, etc. of the reinforcing cloth. It is still not enough, and improvement is desired.
本発明は、このような従来の問題点に鑑み、ベルト使用
時の耐屈曲性の改善と騒音の低減とを図り得る無端ベル
トを提供するものである。In view of these conventional problems, the present invention provides an endless belt that can improve bending resistance and reduce noise when the belt is used.
（問題点を解決するための手段）
本発明は、そのための手段として、突起部３゜２５、２
９と補強布４．２７．３１との間に、不浸透性エラスト
マー合成樹脂材料から成る緩衝層７を設けたものである
。(Means for solving the problem) The present invention provides, as a means for solving the problem, protrusions 3°25, 2
A buffer layer 7 made of an impermeable elastomer synthetic resin material is provided between the reinforcing cloth 9 and the reinforcing cloth 4,27,31.
（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
を説明する。(Example) Hereinafter, the endless belt according to the present invention will be described with respect to each of the illustrated examples.
大侮桝上
第１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及び歯部３は液状注型ポ
リウレタン等の液状注型エラストマー材料から成り、そ
のベルト本体１内には抗張体６が螺旋状に埋込まれてい
る。歯部３と補強布４との間には、第２図に示すように
熱可塑性ポリウレタン等の不浸透性エラストマー合成樹
脂材料から成る緩衝層７が全面にわたって略均−な厚き
で設けられている。Fig. 1 shows that teeth 3 are integrally formed on the inner circumferential side of a belt body 1 via land portions 2 at equal intervals in the circumferential direction, and the surfaces of the teeth 3 and lands 2 are integrally formed. An endless belt 5 provided with a reinforcing cloth 4 is shown. The belt body 1 and the teeth 3 are made of a liquid cast elastomer material such as liquid cast polyurethane, and a tensile body 6 is spirally embedded within the belt body 1. As shown in FIG. 2, a buffer layer 7 made of an impermeable elastomer synthetic resin material such as thermoplastic polyurethane is provided between the teeth 3 and the reinforcing cloth 4 with a substantially uniform thickness over the entire surface. There is.
第３図は無端ベルト５の製造に使用する金型装置を示す
。即ち、第５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１１１２とが着脱自在、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っている。また上
蓋１１には空間１０に連通ずるように脱気孔１３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。FIG. 3 shows a mold apparatus used for manufacturing the endless belt 5. As shown in FIG. That is, in FIG. 5, 8 is an inner mold, 9 is an outer mold,
These inner and outer molds 8.9 are provided concentrically to form a predetermined space 10, and are separable. Inner and outer molds 8, 9
An upper lid 11 and a lower lid 1112 are removably provided at both upper and lower ends of the mold 8.
．． The space 10 between the spaces 9 and 9 is hermetically sealed. Further, a deaeration hole 13 is formed in the upper lid 11 so as to communicate with the space 10, and an opening/closing screw 14 is screwed into the deaeration hole 13 in a detachable manner.
１５は液状注型エラストマー材料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エラストマー材料１
６を管１７から内外金型８．９の空間１０に注型できる
ようになっている。内金型８の外周には、第４図及び第
５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が全周にわたって設けられている。15 is a casting container containing a liquid casting elastomer material 16, which is attached to the outer mold 9 side via a casting pipe 17;
By pressurizing the piston 18, the elastomer material 1
6 can be cast from a tube 17 into the space 10 of the inner and outer molds 8.9. As shown in FIGS. 4 and 5, an uneven portion 19 for forming the tooth portion 3 of the endless belt 5 is provided on the outer circumference of the inner mold 8 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、これに熱可塑
性ポリウレタンの溶液を塗布（乾燥時、塗布量１００〜
５００ｇｆ ／ｒｒｒ） して目止め処理すると共に、
補強布４側に所定厚さの緩衝層７を形成しておく。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って筒状にエンドレス加工し
た後、金型装置の内金型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ｍ
１１１．１２との間で補強布４の両端部を挟込んで固定
する。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内のエラストマー材料１６をピ
ストン１８で圧力Ｐ（２ｋｇｆ／ａ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エラスト
マー材料１６を注型用管１７を経て内外金型８，９間の
空間１０に充填する。なおエラストマー材料１６は粘度
２０００〜４０００ＣＰＳである。空間１０にエラスト
マー材料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１
３に開閉ネジ１４を螺着し、脱気孔１３を密閉する。When manufacturing the endless belt 5, a stretchable reinforcing fabric 4 such as nylon woven fabric or polyester woven fabric is used, and a solution of thermoplastic polyurethane is applied to this (when dry, the coating amount is 100~
500gf/rrr) and sealing process,
A buffer layer 7 having a predetermined thickness is formed on the reinforcing cloth 4 side. 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 fusion, and then fitting it into the inner mold 8 of the molding device so as to fit it into the outer mold. 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. Once the reinforcing cloth 4 and tensile material 6 have been attached to the inner mold 8, the inner mold 8 is inserted into the outer mold 9 so that a predetermined space 10 is formed between the inner and outer molds 8 and 9. Combine. At this time, both ends of the reinforcing cloth 4 in the width direction are bent from both the upper and lower ends of the inner mold 8 toward the center, and the inner mold 8 and the upper and lower m
Both ends of the reinforcing cloth 4 are sandwiched and fixed between 111 and 12. Then, after heating the entire inner and outer molds 8.9 to about 110°C, the elastomer material 16 in the casting container 15 is pressurized with a pressure P (2 kgf/a or less) with the piston 18, and the polyurethane polymer and curing agent are combined. The elastomer material 16 mixed with the above is filled into the space 10 between the inner and outer molds 8 and 9 through the casting tube 17. Note that the elastomer material 16 has a viscosity of 2000 to 4000 CPS. When the space 10 is filled with the elastomer material 16, it flows out from the deaeration hole 13 of the upper lid 11, and when it flows out, the elastomer material 16 flows out from the deaeration hole 1.
3 with the opening/closing screw 14 to seal the deaeration hole 13.
そして、この密閉後、１１０℃×６０１１ｉｎ×１０〜
３０ｋｇｆ／ｃＪの加圧成形によりエラストマー材料１
６を介して補強布４に圧力を加える。すると補強布は緩
衝層７で目止めされており、エラストマー材料１６が浸
透しないので、圧力によって伸張しながら内金型８外周
の凹凸部１９の形状に沿って変形し、内金型８の外周面
に間隙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、加圧によって補強布４が動いたりずれたり
することはない。After this sealing, 110℃ x 6011in x 10~
Elastomer material 1 is formed by pressure molding at 30 kgf/cJ.
Pressure is applied to the reinforcing cloth 4 via 6. Then, since the reinforcing cloth is sealed by the buffer layer 7 and the elastomer material 16 does not permeate, it expands under pressure and deforms along the shape of the uneven portion 19 on the outer periphery of the inner mold 8. Reliably adheres to the surface without any gaps. Even during this pressurization, the reinforcing cloth 4
Since both ends of the reinforcing cloth 4 are fixed between the inner mold 8 and the upper and lower lids 11 and 12, the reinforcing cloth 4 will not move or shift due to pressure.
エラストマー材料１６が硬化すれば、上下Ｉ１１．１２
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って、
無端ベルト５を製造できる。Once the elastomeric material 16 is cured, the upper and lower I11.12
After removing and separating the inner and outer molds 8.9, the molded product is demolded,
By slicing the molded product into a predetermined product width,
An endless belt 5 can be manufactured.
このようにして製造した無端ベルト５は、補強布４と歯
部３との間に緩衝層７があるので、ベルト使用時に、補
強布４の他に緩衝層７が緩衝用として機能し、騒音が低
減する。また緩衝層７があるため、耐屈曲性も向上する
。更に緩衝層７が不浸透性であり、補強布４が伸縮性を
有するので、加圧時に補強布４が内金型８の凹凸部１９
の形状に沿って簡単かつ確実に密着する。従って、ベル
ト内部に気泡が発生することがな（、無気泡のものを容
易に製造できる。また補強布４は緩衝層７で目止めされ
ているから、補強布４内にエラストマー材料１６が浸透
することがなく、エラストマー材料１Ｇの局部的な浸透
による品質のバラツキを防止できる。従って、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。Since the endless belt 5 manufactured in this way has the buffer layer 7 between the reinforcing cloth 4 and the toothed portion 3, when the belt is used, the buffer layer 7 functions as a buffer in addition to the reinforcing cloth 4, thereby reducing noise. is reduced. Furthermore, since the buffer layer 7 is present, the bending resistance is also improved. Furthermore, since the buffer layer 7 is impermeable and the reinforcing cloth 4 has elasticity, the reinforcing cloth 4 will not touch the uneven portions 19 of the inner mold 8 when pressurized.
Easily and reliably adheres to the shape of the Therefore, air bubbles do not occur inside the belt (a bubble-free product can be easily manufactured). Also, since the reinforcing fabric 4 is sealed with the buffer layer 7, the elastomer material 16 penetrates into the reinforcing fabric 4. Therefore, it is possible to prevent variations in quality due to local penetration of the elastomer material 1G.Therefore, the production process is easy and the endless belt 5 of high quality can be produced.
補強布４は熱可塑性ポリウレタンの溶液を塗布し乾燥さ
せて緩衝層７を形成した後、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
波状等に半歯彫加工したものを使用しても良い。このよ
うに歯形加工または半歯彫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、従って、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 one that has been coated with a solution of thermoplastic polyurethane and dried to form the buffer layer 7, and then processed into a tooth shape in advance to match the uneven portions 19 of the inner mold 8. It is also possible to use a half tooth carving process. Even when using the reinforcing cloth 4 that has been subjected to tooth-shaped processing or half-toothed processing, the reinforcing cloth 4 itself can be expanded and contracted, so that the reinforcing cloth 4 can be tightly attached to 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.
去施■主
補強布４には不浸透性エラストマー材料を塗布して緩衝
層７を形成するが、第６図に示すようにポリウレタン等
をフィルム又はシート状にした材料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って
積層加工して緩衝層７を形成しても良い。なお、この場
合、補強布４及び材料２０は、ロール２２．２３に夫々
巻取っておき、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せた状態で順次熱プレス２
１により積層加工する。なお、緩衝層７の厚さは０．０
１〜１．００鶴程度である。Application: The main reinforcing fabric 4 is coated with an impermeable elastomer material to form the buffer layer 7. As shown in FIG. The buffer layer 7 may be formed by laminating the surface of the reinforcing cloth 4 by thermal fusion using the hot press 21 . In this case, the reinforcing cloth 4 and the material 20 are wound up on rolls 22 and 23, respectively, and the parts drawn out from both rolls 22 and 23 in the direction of the arrows are sequentially pressed into the hot press 2 with the parts superimposed vertically.
Lamination processing is performed according to step 1. Note that the thickness of the buffer layer 7 is 0.0
It is about 1 to 1.00 cranes.
叉扇■ユ
第７図及び第８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に沿って内周側に巻付け、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。7 and 8 show that the outer periphery of the inner mold 8 is a smooth surface, and -
A case is shown in which a mold device in which uneven portions 24 are formed on the inner circumferential surface of the outer mold 9 is used. In this case, the reinforcing cloth 4 is placed in the outer mold 9.
It is wound around the inner circumferential side along the concave and convex portion 24, and both ends in the width direction are sandwiched and fixed between the outer mold 9 and the upper and lower lids 11 and 12. 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１図に示す無端ベルト５が得られる。If molded in this way, the teeth 3 and the reinforcing cloth 4 will be formed on the outer circumferential side.
A molded product with a mark is created. After that, the molded product is cut into rounds at a predetermined width, and then turned inside out.
An endless belt 5 shown in FIG. 1 is obtained.
叉立拠工
第９図はベルト本体１の内外周面に対称に歯部３．２５
を備えた対称型、第１０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３，２
５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。Fig. 9 shows teeth 3.25 symmetrically on the inner and outer peripheral surfaces of the belt body 1.
FIG. 10 shows an endless belt 26 of an asymmetric type in which the inner and outer teeth 3° 25 are offset in the circumferential direction. Also in these endless belts 26, the teeth 3, 2 on both sides
A reinforcing cloth 4°27 is provided so as to cover the surface of 5, and is manufactured as follows.
即ち、この場合には、第１１図に示すように内外金型８
，９に歯部３，２５成形用の凹凸部１９．２８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 are provided with uneven parts 19 and 28 for forming the tooth parts 3 and 25, the reinforcing cloth 4 and the tensile material 6 are wrapped around the outer peripheral surface of the inner mold 8, and the inner mold 9 is A reinforcing cloth 27 is wrapped around the circumferential surface and molded. The subsequent work steps are the same as described above.
大隻炭工
第１２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。Figure 12 shows the belt body 1 with teeth 3 on the inner circumferential surface and V on the outer circumferential surface.
An endless belt 30 is shown in which letter-shaped protrusions 29 are integrally formed, and in this case as well, the surfaces of the teeth 3 and the protrusions 29 are covered with reinforcing cloths 4 and 31.
この無端ベルト３０の製造に際しては、第１３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
作業を行う。In manufacturing this endless belt 30, as shown in FIG. Work in sequence.
なお補強布４．２７．３１としては、バイヤスカットし
た織布、伸縮性の大きい織糸で織った織布、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。Reinforcing fabrics 4.27.31 include bias-cut woven fabrics, woven fabrics woven with highly elastic yarns, non-woven fabrics, and others; in the case of woven fabrics, elastic fibers, rubber threads, crimped The processed yarn is used as a weaving yarn, such as plain weave, twill weave, satin weave, etc.
液状注型エラストマー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、デユワ
メータＡ２０〜デユロメータＤ８０の範囲であれば良い
。The hardness of liquid cast elastomer 16 when made into a product is:
A JIS-A hardness of 70 to 100 degrees is appropriate, but a range of durometer A20 to durometer D80 is sufficient.
抗張体６は、芳香族ポリアミド、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（採用できる。The structure and shape of the endless belt are not limited to those in the example,
As long as the belt body 1 has a reinforcing cloth on the side surface, it can be widely used in manufacturing the belt body 1.
補強布４．２７．３１の表面に薄いシリコン、フッ素等
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。It is also possible to provide a thin layer of synthetic resin or elastomer such as silicone or fluorine on the surface of the reinforcing cloth 4.27.31, and in this way, the coefficient of friction on the surface of the reinforcing cloth 4.27.31 can be adjusted arbitrarily. This allows the belt to be used in a wider range of applications.
（発明の効果）
本発明によれば、突起部と補強布との間に、不浸透性エ
ラストマー合成樹脂材料から成る緩衝層を設けているの
で、従来に比較してベルト使用時の耐屈曲性が向上する
と共に、騒音が低減し、その実用的価値は極めて大であ
る。また緩衝層は不浸透性であるから、金型内でベルト
を成形する際に、液状注型エラストマー材料が補強布側
に浸透して表面に現われるようなことがな（、補強布に
よる緩衝作用も良好である。(Effects of the Invention) According to the present invention, since a buffer layer made of an impermeable elastomer synthetic resin material is provided between the protrusion and the reinforcing cloth, the bending resistance when the belt is used is improved compared to conventional belts. This improves noise and reduces noise, and its practical value is extremely great. In addition, since the buffer layer is impermeable, when the belt is formed in the mold, the liquid cast elastomer material will not penetrate into the reinforcing fabric and appear on the surface (the buffering effect of the reinforcing fabric will be prevented). is also good.
（本発明以外の開示）
無端ベルトには、平ベルト、■ベルト等のように突起部
を備えず、ベルト本体の側面に補強布を設けたものもあ
るが、その場合にはベルト本体と補強布との間に、不浸
透性エラストマー合成樹脂材料から成る緩衝層を設けて
も良い。(Disclosure other than the present invention) Some endless belts do not have protrusions, such as flat belts and belts, but have reinforcing cloth on the side of the belt body. A buffer layer made of an impermeable elastomeric synthetic resin material may be provided between the cloth and the cloth.
第１図は本発明の第１実施例を示すベルトの斜視図、第
２図は同ベルトの断面図、第３図は同金型装置の断面図
、第４図は同金型の要部断面図、第５図は同断面平面図
、第６図は本発明の第２実施例を示す説明図、第７図は
本発明の第３実施例を示す金型の要部断面図、第８図は
同断面平面図、第９図及び第１０図は本発明の第４実施
例を示すベルトの斜視図、第１１図は同金型の要部断面
図、第１２図は本発明の第５実施例を示すベルトの斜視
図、第１３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、５．２６．３０
・・・無端ベルト、６・・・抗張体、７・・・緩衝層、
８・・・内金型、９・・・外金型、１０・・・空間、１
１・・・上蓋、１２・・・下蓋、１６・・・液状注型材
料、１９．２４．２８．３２・・・凹凸部。
第１１図 第７３図
第１２図Fig. 1 is a perspective view of a belt showing a first embodiment of the present invention, Fig. 2 is a sectional view of the belt, Fig. 3 is a sectional view of the mold device, and Fig. 4 is a main part of the mold. 5 is a cross-sectional plan view of the same, FIG. 6 is an explanatory diagram showing a second embodiment of the present invention, and FIG. 7 is a sectional view of main parts of a mold showing a third embodiment of the present invention. 8 is a sectional plan view of the same, FIGS. 9 and 10 are perspective views of a belt showing a fourth embodiment of the present invention, FIG. 11 is a sectional view of a main part of the mold, and FIG. FIG. 13 is a perspective view of a belt showing the fifth embodiment, and a sectional view of a main part of the same mold. 1... Belt body, 2... Land portion, 3, 25...
・Tooth part, 4.27.31... Reinforcement cloth, 5.26.30
... Endless belt, 6 ... Tensile body, 7 ... Buffer layer,
8...Inner mold, 9...Outer mold, 10...Space, 1
DESCRIPTION OF SYMBOLS 1... Upper lid, 12... Lower lid, 16... Liquid casting material, 19.24.28.32... Uneven part. Figure 11 Figure 73 Figure 12
Claims (1)
張体６が埋込まれたベルト本体１と、このベルト本体１
に前記液状注型エラストマー材料により一体形成された
突起部３、２５、２９とを有し、この突起部３、２５、
２９の表面に補強布４、２７、３１を装着して成る伝動
用無端ベルトにおいて、突起部３、２５、２９と補強布
４、２７、３１との間に、不浸透性エラストマー合成樹
脂材料から成る緩衝層７を設けたことを特徴とする伝動
用無端ベルト。(1) A belt body 1 made of a liquid cast elastomer material and having a tensile member 6 embedded therein, and this belt body 1
The projections 3, 25, 29 are integrally formed from the liquid cast elastomer material, and the projections 3, 25,
In the endless belt for power transmission comprising reinforcing cloths 4, 27, 31 attached to the surface of 29, between the protrusions 3, 25, 29 and the reinforcing cloths 4, 27, 31, an impermeable elastomer synthetic resin material is provided. An endless transmission belt characterized by having a buffer layer 7 consisting of:
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4575287A JPS63214538A (en) | 1987-02-27 | 1987-02-27 | 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 |
|---|---|---|---|
| JP4575287A JPS63214538A (en) | 1987-02-27 | 1987-02-27 | Endless transmission belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63214538A true JPS63214538A (en) | 1988-09-07 |
| JPH0557457B2 JPH0557457B2 (en) | 1993-08-24 |
Family
ID=12728033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4575287A Granted JPS63214538A (en) | 1987-02-27 | 1987-02-27 | Endless transmission belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63214538A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5131215A (en) * | 1988-03-02 | 1992-07-21 | Williames Geoffrey Allan | Track support for agricultural machines |
| US5322479A (en) * | 1991-12-26 | 1994-06-21 | Caoutchouc Manufacture Et Plastiques | Endless belt power transmission system |
| JPH06213283A (en) * | 1993-01-19 | 1994-08-02 | Nitta Ind Corp | Toothed belt and manufacture thereof |
| JP2001336580A (en) * | 2000-05-26 | 2001-12-07 | Unitta Co Ltd | Cast molding urethane belt and manufacturing method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3988153B1 (en) | 2015-03-31 | 2024-04-24 | Fisher & Paykel Healthcare Limited | A user interface for supplying gases to an airway |
| EP3995168A1 (en) | 2016-08-11 | 2022-05-11 | Fisher & Paykel Healthcare Limited | A collapsible conduit, patient interface and headgear connector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54150540A (en) * | 1978-05-18 | 1979-11-26 | Mitsuboshi Belting Ltd | Serrated transmission belt and method of producing same |
| JPS63135631A (en) * | 1986-11-27 | 1988-06-08 | Bando Chem Ind Ltd | Toothed belt and its manufacture |
-
1987
- 1987-02-27 JP JP4575287A patent/JPS63214538A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54150540A (en) * | 1978-05-18 | 1979-11-26 | Mitsuboshi Belting Ltd | Serrated transmission belt and method of producing same |
| JPS63135631A (en) * | 1986-11-27 | 1988-06-08 | Bando Chem Ind Ltd | Toothed belt and its manufacture |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5131215A (en) * | 1988-03-02 | 1992-07-21 | Williames Geoffrey Allan | Track support for agricultural machines |
| US5322479A (en) * | 1991-12-26 | 1994-06-21 | Caoutchouc Manufacture Et Plastiques | Endless belt power transmission system |
| JPH06213283A (en) * | 1993-01-19 | 1994-08-02 | Nitta Ind Corp | Toothed belt and manufacture thereof |
| JP2001336580A (en) * | 2000-05-26 | 2001-12-07 | Unitta Co Ltd | Cast molding urethane belt and manufacturing method |
| JP4596296B2 (en) * | 2000-05-26 | 2010-12-08 | ゲイツ・ユニッタ・アジア株式会社 | Cast urethane belt and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0557457B2 (en) | 1993-08-24 |
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