JPS63214537A - Endless transmission belt and manufacture thereof - Google Patents
Endless transmission belt and manufacture thereofInfo
- Publication number
- JPS63214537A JPS63214537A JP4575087A JP4575087A JPS63214537A JP S63214537 A JPS63214537 A JP S63214537A JP 4575087 A JP4575087 A JP 4575087A JP 4575087 A JP4575087 A JP 4575087A JP S63214537 A JPS63214537 A JP S63214537A
- Authority
- JP
- Japan
- Prior art keywords
- elastomer material
- reinforcing cloth
- mold
- belt
- reinforcing
- 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 abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 80
- 239000004744 fabric Substances 0.000 claims abstract description 73
- 239000000463 material Substances 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 229920001971 elastomer Polymers 0.000 claims abstract description 47
- 239000000806 elastomer Substances 0.000 claims abstract description 45
- 238000005266 casting Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract 5
- 239000007924 injection Substances 0.000 abstract 5
- 239000010409 thin film Substances 0.000 abstract 2
- 229920002635 polyurethane Polymers 0.000 description 9
- 239000004814 polyurethane Substances 0.000 description 9
- 239000013536 elastomeric material Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 230000000694 effects Effects 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
- 238000003825 pressing Methods 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 229920001944 Plastisol Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229920003233 aromatic nylon Polymers 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber 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
- 230000014759 maintenance of location Effects 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
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002689 soil 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
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、伝動用無端ベルト及びその製造方法に関し、
取分け、ベルト本体−側の突起部を覆う補強布の表面に
、ベルト本体及び突起部の液状注型エラストマー材料に
より一体形成された薄層を設けて成る伝動用無端ベルト
と、この伝動用無端ベルトを製造する製造方法に関する
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 a method for manufacturing the same.
In particular, an endless belt for power transmission comprising a thin layer integrally formed with a liquid cast elastomer material for the belt body and the projection on the surface of a reinforcing cloth covering the protrusion on the side of the belt body, and this endless belt for power transmission. The present invention relates to a manufacturing method for manufacturing.
（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
、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, endless belts with teeth using liquid cast elastomer materials such as polyurethane, due to the characteristics of the material,
It is ideal for use in power transmission systems and conveyance systems where dirt from rubber debris, etc. must be avoided.
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
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 polyurethane, etc., when the teeth mesh with the pulley teeth, the frictional resistance In addition to generating a significant amount of heat, there were problems in terms of durability, such as teeth being chipped due to wear and tear, and noise was also 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、従来の無端ベルトでは、金型内に補強布を巻付
けておき、液状注型エラストマー材料を注型又は注入し
て成形する際に、歯部の表面に補強布を液状注型エラス
トマー材料を介して接着するようにしているが、補強布
の歯部表面に対する接着性が悪く、長時間使用すれば、
補強布が歯部表面から剥離することがあった。また補強
布の表面側が全く覆われていない場合には、補強布によ
る緩衝効果が大となり、発熱、騒音を低減できる反面、
補強布自体の損傷が著しくなる。(Problems to be Solved by the Invention) However, in conventional endless belts, reinforcing cloth is wrapped around the mold, and when molding by casting or injecting liquid cast elastomer material, the teeth are A reinforcing cloth is bonded to the surface using a liquid cast elastomer material, but the adhesion of the reinforcing cloth to the tooth surface is poor, and if used for a long time,
The reinforcing cloth sometimes peeled off from the tooth surface. In addition, if the surface side of the reinforcing cloth is not covered at all, the buffering effect of the reinforcing cloth will be large, reducing heat generation and noise, but on the other hand,
Damage to the reinforcing fabric itself becomes significant.
本発明は、このような従来の問題点に鑑み、補強布の突
起部からの剥離を防止でき、かつ、補強布の損傷も防止
できる耐久性に優れた無端ベルトを提供すると共に、そ
の無端ベルトを容易に製造できる製造方法を提供するこ
とを目的とする。In view of these conventional problems, the present invention provides an endless belt with excellent durability that can prevent the reinforcing fabric from peeling off from the protruding portions and prevent damage to the reinforcing fabric. The purpose of the present invention is to provide a manufacturing method that can easily manufacture.
（問題点を解決するための手段）
本発明に係る無端ベルトは、液状注型エラストマー材料
１７から成りかつ内部に抗張体６が埋込まれたベルト本
体ｌと、このベルト本体１に前記液状注型エラストマー
材料１７により一体形成された突起部３，２５．２９と
を有し、突起部３．２５．２９の表面に補強布４，２７
．３１を装着した伝動用無端ベルトにおいて、補強布４
．２７．３１の表面に、前記液状注型エラストマー材料
１７により一体形成された薄層７を設けたものである。(Means for Solving the Problems) The endless belt according to the present invention includes a belt body 1 made of a liquid cast elastomer material 17 and having a tensile member 6 embedded therein, The protrusions 3, 25, 29 are integrally formed of cast elastomer material 17, and the surfaces of the protrusions 3, 25, 29 are covered with reinforcing cloth 4, 27.
．． In the endless power transmission belt equipped with 31, the reinforcing cloth 4
．． A thin layer 7 formed integrally with the liquid cast elastomeric material 17 is provided on the surface of 27.31.
また、本発明に係る無端ベルトの製造方法は、内外金型
９．ｌＯの内、突起部３．２５．２９成形用の凹凸形状
を有する金型側に補強布４．２７．３１を装着する工程
と、この補強布４．２７．３１に対して前記金型と反対
側に抗張体６を装着する工程と、内外金型９゜１０間の
空間１１に液状注型エラストマー材料１７を注型又は注
入する工程と、この液状注型エラストマー材料１７を加
圧することにより、補強布４．２７．３１を金型の凹凸
形状に沿って密着させ、かつ補強布４．２７．３１の表
面に液状注型エラストマー材料１７を浸透させて薄層７
を形成する工程とを有するものである。Further, the method for manufacturing an endless belt according to the present invention includes the following steps: Among 1O, there is a step of attaching a reinforcing cloth 4.27.31 to the side of the mold having an uneven shape for molding the protrusion 3.25.29, and a step of attaching the reinforcing cloth 4.27.31 to the said mold. A step of attaching the tensile member 6 to the opposite side, a step of casting or injecting a liquid cast elastomer material 17 into the space 11 between the inner and outer molds 9° and 10, and pressurizing the liquid cast elastomer material 17. The reinforcing cloth 4.27.31 is brought into close contact with the uneven shape of the mold, and the liquid cast elastomer material 17 is infiltrated into the surface of the reinforcing cloth 4.27.31 to form a thin layer 7.
It has a step of forming.
（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
及びその製造方法を説明する。(Example) Hereinafter, the endless belt and the manufacturing method thereof according to the present invention will be explained with reference to each illustrated example.
実施史上
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は、ポリウレタン等の液
状注型エラストマー材料を硬化させたものであって、内
部に抗張体６が螺旋状に埋込まれている。歯部３は液状
注型エラストマー材料によりベルト本体１と一体形成さ
れている。補強布４は第２図に示すように、ベルト製造
時に歯部３側の液状注型エラストマー材料が浸透し硬化
して接着されており、−この補強布４の表面側には液状
注型エラストマー材料により歯部３と一体形成された薄
層７が全面にわたって均一に設けられている。Fig. 1 shows that teeth 3 are integrally formed on the inner peripheral surface of a belt main body 1 at equal intervals in the circumferential direction via land portions 2, and reinforcing cloth is applied to the surfaces of the teeth 3 and lands 2. 4 is shown. The belt body 1 is made of a hardened liquid cast elastomer material such as polyurethane, and has a tensile member 6 spirally embedded therein. The teeth 3 are integrally formed with the belt body 1 from a liquid cast elastomer material. As shown in FIG. 2, the reinforcing cloth 4 is bonded to the liquid cast elastomer material on the side of the teeth 3 during belt manufacturing by penetrating and hardening. A thin layer 7 of material integrally formed with the teeth 3 is provided uniformly over the entire surface.
第３図は無端ベルト５の製造に使用する金型装置８を示
す、即ち、第３図において、９は内金型、１０は外金型
で、これら内外金型９，１０は所定の空間１１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
９，１０の上下両端には上ｌ！１２と下Ｉ［１３とが着
脱自在に設けられており、この上下蓋１２、１３により
内外金型９．１０間の空間１１を密閉するようになって
いる。また上蓋１２には空間１１に連通ずるように脱気
孔１４が形成され、その脱気孔１４には着脱自在に開閉
ネジ１５が螺着されている。１６は液状注型エラストマ
ー材料１７を入れた注型用容器で、注型用管１８を介し
て外金型１０側に取付けられ、ピストン１９を加圧する
ことにより液状注型エラストマー材料１７を管１８から
内外金型９．１０の空間１１に注型できるようになって
いる。内金型９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２
０が全周にわたって設けられている。FIG. 3 shows a mold device 8 used for manufacturing the endless belt 5. In other words, in FIG. 3, 9 is an inner mold, and 10 is an outer mold. 11, and are separable. The upper and lower ends of the inner and outer molds 9 and 10 have upper l! 12 and a lower I [13] are detachably provided, and the space 11 between the inner and outer molds 9 and 10 is sealed by the upper and lower lids 12 and 13. Further, a deaeration hole 14 is formed in the upper lid 12 so as to communicate with the space 11, and an opening/closing screw 15 is screwed into the deaeration hole 14 in a detachable manner. Reference numeral 16 denotes a casting container containing a liquid casting elastomer material 17, which is attached to the outer mold 10 side via a casting pipe 18, and by pressurizing a piston 19, the liquid casting elastomer material 17 is poured into the pipe 18. It is possible to cast the mold into the space 11 of the inner and outer molds 9 and 10 from there. On the outer periphery of the inner mold 9, as shown in FIGS.
0 is provided all around.
無端ベルト５の製造する際には、ナイロン織布、ポリエ
ステル織布等の補強布４を用い、これに液状注型エラス
トマー材料１７と同一の材料、例えばポリウレタンの溶
液を塗布する。この塗布量は乾燥時において１０〜３０
ｇｆ／ｍ”となる程度であって、その歯形加工時に保形
性が得られ、かつ補強布４を目止めしない程度である。When manufacturing the endless belt 5, a reinforcing fabric 4 such as a woven nylon fabric or a woven polyester fabric is used, and a solution of the same material as the liquid cast elastomer material 17, for example, polyurethane, is applied thereto. This application amount is 10 to 30 when dry.
gf/m'', which is such a level that shape retention is obtained during tooth profile processing, and that the reinforcing cloth 4 is not sealed.
次に、この補強布４を第６図に示すように上下一対の金
型２１．２２を存する熱プレス２３によりプレス成形し
て歯形加工を施した後、これを所定寸法に裁断し、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する。そして、このエンドレス状
の補強布４を第４図及び第５図に示すように金型装置８
の内金型９に外嵌させて凹凸部２０の形状に沿うように
装着し、その補強布４の外側から内金型９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
の繊維ローブを使用する。内金型９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９を外金型１
０内に挿入して内外金型９を所定の空間１１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９の上下両端から中心側に折曲げておき、この内
金型９と上下蓋１２．１３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９．１０全体を約
１１０℃に加熱した後、注型用容器１６内の液状注型エ
ラストマー材料１７をピストン１８で圧力Ｐ （２ｋｇ
ｆ／ｃｄ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エラストマー材料１７を注
型用管１８を経て内外金型９．１０間の空間１１に充填
する。なお液状注型エラストマー材料１７は粘度２００
０〜４０００ｃｐｓである。空間１１に液状注型エラス
トマー材料１７を充填して行くと、それが上蓋１２の脱
気孔１４から流出するので、その流出した時点で脱気孔
１４に開閉ネジ１５を螺着し、脱気孔１４を密閉して１
１０℃Ｘ ６０ｓｉｎ Ｘ １０〜３０ｋｇｆ／−で加
圧成形する。この加圧成形時に、歯形状に予備成形され
た補強布４は、液状注型エラストマー材料１７を介して
内金型９側に押圧され、その凹凸部２０の形状に沿って
隙間なく密着する。また、これと同時に補強布４の織目
に液状注型エラストマー材料１７が浸透して行き、第２
図に示すように歯部３の表面に液状注型エラストマー材
料１７により一体形成された薄層７が全面にわたってで
きる。Next, as shown in FIG. 6, this reinforcing cloth 4 is press-molded using a heat press 23 having a pair of upper and lower molds 21 and 22 to form a tooth shape. Endlessly processed into a cylindrical shape by sewing, adhesion using heat press, or fusion. Then, this endless reinforcing cloth 4 is placed in a mold device 8 as shown in FIGS. 4 and 5.
The tension member 6 is fitted onto the inner mold 9 of the inner mold 9 so as to follow the shape of the uneven portion 20, and the tensile member 6 is spirally wound around the inner mold 9 from the outside of the reinforcing cloth 4. As the tensile body 6, a fiber lobe of aromatic polyamide is used. reinforcing cloth 4 for inner mold 9;
When the installation of the tensile body 6 is completed, the inner mold 9 is replaced with the outer mold 1.
0 and combine the inner and outer molds 9 to form a predetermined space 11. 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 9 toward the center, and both ends of the reinforcing cloth 4 are folded between the inner mold 9 and the upper and lower lids 12 and 13. Insert and secure. After heating the entire inner and outer molds 9 and 10 to about 110°C, the liquid casting elastomer material 17 in the casting container 16 is heated to a pressure P (2 kg) by the piston 18.
f/cd or less), and the space 11 between the inner and outer molds 9 and 10 is filled with a liquid casting elastomer material 17, which is a mixture of a polyurethane polymer and a curing agent, through a casting pipe 18. Note that the liquid cast elastomer material 17 has a viscosity of 200
It is 0 to 4000 cps. When the liquid cast elastomer material 17 is filled into the space 11, it flows out from the deaeration hole 14 of the upper lid 12. At the point when it flows out, the opening/closing screw 15 is screwed into the deaeration hole 14, and the deaeration hole 14 is closed. Close it tightly 1
Pressure molding is carried out at 10°C, 60 sin, and 10 to 30 kgf/-. During this pressure molding, the reinforcing cloth 4 preformed into a tooth shape is pressed against the inner mold 9 side through the liquid casting elastomer material 17, and is closely adhered to the inner mold 9 along the shape of the uneven portion 20 without any gaps. At the same time, the liquid cast elastomer material 17 penetrates into the weave of the reinforcing cloth 4, and the second
As shown in the figure, a thin layer 7 formed integrally with the liquid cast elastomeric material 17 is formed on the surface of the tooth 3 over the entire surface.
液状注型エラストマー材料１７が硬化すれば、上下１１
１２．１３を外し内外金型９，１０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 liquid cast elastomeric material 17 is cured, the upper and lower parts 11
After removing the molds 12 and 13 and separating the inner and outer molds 9 and 10, the molded product is demolded and the molded product is cut into rounds to a predetermined product width, thereby producing the endless belt 5.
このようにして製造された無端ベルト５は、補強布４の
表面側に液状注型エラストマー材料１７が浸透している
ので、補強布４の歯部３側に対する接着性が著しく向上
し、長時間にわたって使用しても補強布４が剥離するよ
うなことはない。また補強布４の表面に液状注型エラス
トマー材料１７から成る薄層７があるため、これによっ
て補強布４を保護でき、その損傷が少なくなる。更に薄
層７は液状注型エラストマー材料１７の注型又は注入後
の加圧工程で同時に成形することができるので・、容易
に無端ベルト５を製造できる。またこの時の加圧時に補
強布４が内金型９の外周面に隙間なく密着することから
、内部に気泡が発生することがな（、無気泡のベルトを
製造できる利点がある。The endless belt 5 manufactured in this manner has the liquid cast elastomer material 17 permeated into the surface side of the reinforcing cloth 4, so the adhesion of the reinforcing cloth 4 to the toothed portion 3 side is significantly improved, and it lasts for a long time. Even if the reinforcing cloth 4 is used for a long period of time, it will not peel off. Furthermore, the presence of a thin layer 7 of liquid cast elastomeric material 17 on the surface of the reinforcing fabric 4 protects the reinforcing fabric 4 and reduces its damage. Furthermore, since the thin layer 7 can be formed simultaneously in the pressing process after casting or injecting the liquid cast elastomer material 17, the endless belt 5 can be manufactured easily. In addition, since the reinforcing cloth 4 is in close contact with the outer circumferential surface of the inner mold 9 without any gaps during pressurization at this time, no air bubbles are generated inside (there is an advantage that a bubble-free belt can be manufactured).
なお、補強布４は完全な歯形形状に加工する他、波状等
に半歯彫加工したものを使用しても良いし、補強布４自
体が伸縮性を有するものであれば、必ずしも前加工は必
要ではない。In addition to processing the reinforcing cloth 4 into a complete tooth-shaped shape, it is also possible to use a half-toothed material processed into a wavy shape, etc., and if the reinforcing cloth 4 itself has elasticity, pre-processing is not necessarily required. Not necessary.
天皇炭主
補強布４に塗布するポリウレタン等の溶液の塗布量は、
乾燥時に３０〜１００ｇｆ／ｎ＋”となるように若干増
やし、液状注型エラストマー材料１７を注型又は注入後
、密閉して低い圧力（２ｋｇｆ／ｃｊ）で加圧する。そ
して、その加圧状態を５〜１５分間保持しておき、液状
注型エラストマー材料１７の粘度が１０４〜１０”ｃｐ
ｓになった後、１１０℃Ｘ ４５〜５５ｍ１ｎ Ｘ １
０〜３０ｋｇｆ／ａＪで加圧成形する。The amount of solution such as polyurethane applied to the Emperor Charcoal main reinforcing cloth 4 is as follows:
Slightly increase the pressure to 30 to 100 gf/n+'' when drying, and after casting or injecting the liquid cast elastomer material 17, seal and pressurize at a low pressure (2 kgf/cj).Then, the pressurized state is Hold for ~15 minutes until the viscosity of the liquid cast elastomer material 17 is 104-10" cp.
After reaching s, 110℃ x 45~55m1n x 1
Pressure molding is performed at 0 to 30 kgf/aJ.
このようにすれば、補強布４に対する液状注型エラスト
マー材料１７の浸透が若干少なくなり、補強布４の表面
の薄層７が部分的にできることになる。しかし、補強布
４の接着性等においては、第１実施例と同等若しくはそ
れに近い効果が得られる。In this way, the penetration of the liquid cast elastomer material 17 into the reinforcing fabric 4 is slightly reduced, and a thin layer 7 on the surface of the reinforcing fabric 4 is formed partially. However, in terms of the adhesiveness of the reinforcing cloth 4, the same or similar effects as in the first embodiment can be obtained.
ス１１１走
第７図及び第８図は、内金型９の外周を平滑面とし、外
金型１０の内周面に凹凸部２４を形成した金型装置８を
使用する場合を示す、この場合には、補強布４を外金型
ｌＯ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１０と上下蓋１２、１３との間で挟ん
で固定する。一方、抗張体６は内金型９の外周面に巻付
ける。Figures 7 and 8 show the case of using a mold device 8 in which the outer periphery of the inner mold 9 is a smooth surface and the inner peripheral surface of the outer mold 10 is formed with uneven parts 24. In this case, the reinforcing cloth 4 is wrapped around the inner circumferential side along the uneven portion 24 of the outer mold lO, and both widthwise ends of the reinforcing cloth 4 are sandwiched and fixed between the outer mold 10 and the upper and lower lids 12 and 13. do. On the other hand, the tensile member 6 is wound around the outer peripheral surface of the inner mold 9.
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１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 1 shown in FIG. 1 is obtained.
大豊■土
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。Otoyo ■Soil Figure 9 shows teeth 3.25 symmetrically on the inner and outer peripheral surfaces of the belt body 1.
FIG. 10 shows an asymmetric endless belt 26 in which the inner and outer teeth 3, 25 are shifted in the circumferential direction. These endless belts 26 also have teeth 3.2 on both sides.
5. Reinforcing cloths 4, 27 are provided so as to cover the surface, and these are manufactured as follows.
即ち、この場合には、第１１図に示すように内外金型９
，１０に歯部３，２５成型用の凹凸部２０．２８を備え
たものを使用し、内金型９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.
, 10 with uneven parts 20 and 28 for molding 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 9, 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.
ス崖１−
第１２図はベルト本体１の内周面に歯部４、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。Scrap 1 - Figure 12 shows a toothed portion 4 on the inner circumferential surface of the belt body 1 and a 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
で作業を行なう。In manufacturing this endless belt 30, as shown in FIG. 13, an outer mold 9 with uneven parts 32 formed on the inner circumferential surface for forming the protrusions 29 is used, and the same as in Example 4 is used. Do the work in this order.
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、織布、不織布その他が
あり、また織布の場合には、平織、綾織、朱子織したも
の等が用いられる。As the reinforcing fabric 4.27.31, there are woven fabrics, non-woven fabrics, and others, and in the case of woven fabrics, plain weave, twill weave, satin weave, etc. are used.
液状注型エラストマー材料１７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、この液状注型エ
ラストマー材料１７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、デュロメータ
Ａ２０〜デュロメータＤ８０の範囲であれば良い。The liquid casting elastomer material 17 includes thermosetting liquid resin such as polyurethane polymer, liquid rubber, plastisol, hot-melted thermoplastic resin, and the like. In addition, the hardness of this liquid cast elastomer material 17 when made into a product is JIS
A suitable hardness is 70 to 100 degrees, but any durometer range of A20 to 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
の製造に広く採用できる。The structure and shape of the endless belt are not limited to those in the example,
Any belt having a reinforcing cloth on the side surface of the belt body 1 can be widely used in its manufacture.
（発明の効果）
本発明に係る無端ベルトによれば、補強布の表面側に液
状注型エラストマー材料が浸透しているので、補強布の
歯部側に対する接着性が著しく向上し、長時間にわたっ
て使用しても補強布が剥離するようなことはない、また
補強布の表面に液状注型エラストマー材料ら成る薄層が
あるため、これによって補強布を保護でき、その損傷が
少なくなる。(Effects of the Invention) According to the endless belt according to the present invention, since the liquid cast elastomer material has penetrated into the surface side of the reinforcing cloth, the adhesion to the teeth side of the reinforcing cloth is significantly improved, and it lasts for a long time. The reinforcing fabric does not peel off during use, and the thin layer of liquid cast elastomeric material on the reinforcing fabric protects it and reduces damage to it.
本発明に係る製造方法によれば、薄層は液状注型エラス
トマー材料の注型父性人後の加圧工程で同時に成形する
ことができるので、容易に無端ベルトを製造でき机また
この時の加圧時に補強布が内金型の外周面に隙間なく密
着することから、内部に気泡が発生することがなく、無
気泡のベルトを製造できる利点がある。According to the manufacturing method of the present invention, the thin layer can be formed simultaneously in the pressurizing process after the casting of the liquid cast elastomer material, so that it is easy to manufacture an endless belt. Since the reinforcing cloth adheres tightly to the outer peripheral surface of the inner mold during pressing, no air bubbles are generated inside, and there is an advantage that a bubble-free belt can be manufactured.
（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、その場合には補強布の表面に、ベルト本体のエラス
トマー材料により一体形成された薄層を設けても良い。(Disclosure other than the present invention) Some endless belts do not have protrusions like flat belts, etc., but have a reinforcing cloth on the side of the belt body. There may also be a thin layer formed integrally with the elastomeric material of the belt body.
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図は同ベルトの要部断面図、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図は同補強布の予備成形の説明図、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−−一補強布、５．２６．３０−・−
無端ベルト、６−・抗張体、７−薄層、９−内金型、１
０・−・外金型、１１−空間、１２・−・上蓋、１３−
下蓋、１７・−液状注型エラストマー材料、２０，２４
．２８．３２−・凹凸部。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 main parts of the belt, Fig. 3 is a sectional view of the mold device, and Fig. 4 is a sectional view of the same mold. 5 is a cross-sectional plan view of the same, FIG. 6 is an explanatory diagram of preforming of the reinforcing cloth, FIG. 7 is a cross-sectional view of the main part of a mold showing a third embodiment of the present invention, and FIG. 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--teeth portion, 4.27.31--reinforcing cloth, 5.26.30--
Endless belt, 6- Tensile body, 7- Thin layer, 9- Inner mold, 1
0--Outer mold, 11-Space, 12--Top lid, 13-
Lower lid, 17 - liquid cast elastomer material, 20, 24
．． 28.32-・Uneven portion.
Claims (5)
に抗張体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１７により一体形
成された突起部３、２５、２９とを有し、突起部３、２
５、２９の表面に補強布４、２７、３１を装着した伝動
用無端ベルトにおいて、補強布４、２７、３１の表面に
、前記液状注型エラストマー材料１７により一体形成さ
れた薄層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 17 and having a tensile member 6 embedded therein, and protrusions 3 and 25 integrally formed on the belt body 1 from the liquid cast elastomer material 17. , 29, and the projections 3, 2
In the endless power transmission belt in which reinforcing cloths 4, 27, and 31 are attached to the surfaces of reinforcing cloths 4, 27, and 31, a thin layer 7 integrally formed with the liquid cast elastomer material 17 is provided on the surfaces of reinforcing cloths 4, 27, and 31. An endless belt for power transmission.
に抗張体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１７により一体形
成された突起部３、２５、２９とを有し、突起部３、２
５、２９の表面に補強布４、２７、３１を装着した伝動
用無端ベルトを製造する方法において、内外金型９、１
０の内、突起部３、２５、２９成形用の凹凸形状を有す
る金型側に補強布４、２７、３１を装着する工程と、こ
の補強布４、２７、３１に対して前記金型と反対側に抗
張体６を装着する工程と、内外金型９、１０間の空間１
１に液状注型エラストマー材料１７を注型又は注入する
工程と、この液状注型エラストマー材料１７を加圧する
ことにより、補強布４、２７、３１を金型の凹凸形状に
沿って密着させ、かつ補強布４、２７、３１の表面に液
状注型エラストマー材料１７を浸透させて薄層７を形成
す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) A belt main body 1 made of a liquid cast elastomer material 17 and having a tensile member 6 embedded therein, and protrusions 3 and 25 integrally formed on the belt main body 1 from the liquid cast elastomer material 17. , 29, and the projections 3, 2
In the method for manufacturing an endless belt for power transmission in which reinforcing cloths 4, 27, 31 are attached to the surfaces of inner and outer molds 9, 1,
0, a step of attaching the reinforcing cloths 4, 27, 31 to the side of the mold having an uneven shape for molding the protrusions 3, 25, 29, and a step of attaching the reinforcing cloths 4, 27, 31 to the mold. The step of installing the tensile body 6 on the opposite side and the space 1 between the inner and outer molds 9 and 10
By casting or injecting the liquid cast elastomer material 17 into the mold 1 and pressurizing the liquid cast elastomer material 17, the reinforcing cloths 4, 27, 31 are brought into close contact along the uneven shape of the mold, and A method for manufacturing an endless belt for power transmission, comprising the step of infiltrating the surface of reinforcing cloths 4, 27, 31 with liquid cast elastomer material 17 to form a thin layer 7.
工程と、この補強布４の外周から内金型９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２項記載の伝
動用無端ベルトの製造方法。(3) A step of wrapping the reinforcing cloth 4 around the uneven shape side of the outer periphery of the inner mold 9, and a step of wrapping the tensile body 6 around the inner mold 9 from the outer periphery of the reinforcing cloth 4. 2. The method for producing an endless belt for power transmission according to item 2.
３１を内側から装着する工程、内金型９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２項記載の伝動用無端ベルトの製造方法。(4) Reinforcement cloth 4, 27 on the uneven shape side of the inner circumference of the outer mold 10,
31 from the inside; and winding the tensile member 6 around the outer periphery of the inner mold 9.
工程と、この補強布４の外周から内金型９に抗張体６を
巻付ける工程と、外金型１０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２項記載の伝動用無端ベルトの製造方法。(5) A step of wrapping the reinforcing cloth 4 around the uneven shape side of the outer periphery of the inner mold 9, a step of wrapping the tensile material 6 around the inner mold 9 from the outer periphery of the reinforcing cloth 4, and a step of wrapping the tensile material 6 around the inner periphery of the outer mold 10. The method for manufacturing an endless power transmission belt according to claim 2, further comprising the step of attaching reinforcing cloths 27, 31 to the uneven side of the belt from the inside.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62045750A JPH0627528B2 (en) | 1987-02-27 | 1987-02-27 | Endless transmission belt made of liquid cast elastomer material and manufacturing method thereof |
| DE88102307T DE3880710T2 (en) | 1987-02-27 | 1988-02-17 | Manufacturing process for endless belts. |
| EP88102307A EP0280175B1 (en) | 1987-02-27 | 1988-02-17 | Process for producing endless belt |
| 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 |
|---|---|---|---|
| JP62045750A JPH0627528B2 (en) | 1987-02-27 | 1987-02-27 | Endless transmission belt made of liquid cast elastomer material and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63214537A true JPS63214537A (en) | 1988-09-07 |
| JPH0627528B2 JPH0627528B2 (en) | 1994-04-13 |
Family
ID=12727980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62045750A Expired - Lifetime JPH0627528B2 (en) | 1987-02-27 | 1987-02-27 | Endless transmission belt made of liquid cast elastomer material and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0627528B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06213282A (en) * | 1993-01-19 | 1994-08-02 | Nitta Ind Corp | Toothed belt and manufacture thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4151261A1 (en) | 2015-03-31 | 2023-03-22 | Fisher & Paykel Healthcare Limited | A user interface and system for supplying gases to an airway |
| CN114569856A (en) | 2016-08-11 | 2022-06-03 | 费雪派克医疗保健有限公司 | Collapsible catheter, patient interface and headgear connector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833442A (en) * | 1981-08-24 | 1983-02-26 | Mitsuboshi Belting Ltd | Preparation of toothed belt |
| JPS60133253U (en) * | 1984-02-17 | 1985-09-05 | 本田技研工業株式会社 | toothed power transmission belt |
-
1987
- 1987-02-27 JP JP62045750A patent/JPH0627528B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833442A (en) * | 1981-08-24 | 1983-02-26 | Mitsuboshi Belting Ltd | Preparation of toothed belt |
| JPS60133253U (en) * | 1984-02-17 | 1985-09-05 | 本田技研工業株式会社 | toothed power transmission belt |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06213282A (en) * | 1993-01-19 | 1994-08-02 | Nitta Ind Corp | Toothed belt and manufacture thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0627528B2 (en) | 1994-04-13 |
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