JP3873295B2

JP3873295B2 - Composite roller and manufacturing method thereof

Info

Publication number: JP3873295B2
Application number: JP08181695A
Authority: JP
Inventors: 敬弘中川
Original assignee: Unimatec Co Ltd
Current assignee: Unimatec Co Ltd
Priority date: 1995-03-14
Filing date: 1995-03-14
Publication date: 2007-01-24
Anticipated expiration: 2022-01-24
Also published as: JPH08247135A

Description

【０００１】
【産業上の利用分野】
本発明は、一般産業機器の回転駆動部に用いられる複合ローラおよびその製造方法に関する。
【０００２】
【従来の技術】
従来より、エスカレータ用ステップローラ、エレベータ用ガイドローラ、各種台車や遊戯車両（コースタ）の車輪ローラ、自動ドア、医療ベッド用キャスタ、そしてＯＡ機器架台用ローラ等の広汎な機器にあって、それらに内蔵の回転駆動部用の伝動ローラとして、あるいは機器自体を移動させたり搬送したりするための車輪ローラとして回転ローラが使用されている。
これらの回転ローラはいずれも厳しい駆動条件下で使用されるために、消耗も激しく短寿命に終わることが多い。消耗による不良化には、例えばローラ表面層に用いられるゴム等の弾性部材の亀裂、割れおよび芯金部材との接合剥離が大半を占めている。
【０００３】
【発明が解決しようとする課題】
亀裂や割れの原因には、ローラへの負荷荷重と回転周速度との関係で、特にローラ表面層の弾性ゴム部材に圧縮応力と引張応力による繰返し応力がかかることなどがあり、それによってときには破断に至ることがある。繰返し応力を低減させるには、負荷を軽減して弾性歪などを減少させる必要がある。そのため、一般には、ローラ表面層である弾性ゴム部材に高硬度の材質のものを用いて対応している。また、芯金部材との剥離の問題は、上記弾性歪の発生の他、回転周速度が大きい場合はローラ全体が発熱し、芯金部材とローラ表面層との熱膨張率の差によって、接合層に引張応力が作用し、接着剤が熱劣化してその接着強度が低下することが原因となる場合が多い。特に、芯金部材の材質にステンレス鋼、銅、アルミニウム等を用いた場合は、ローラ表面層の弾性ゴム部材との間で接着剤による十分な接合強度が得られないといった難点があり、また鉄とか鋳物の場合には耐食性が低く、腐食によって弾性ゴム部材との接合力が低下するなどの問題がある。
本発明は、芯金部材とそのローラ表面層との剥離などに対する耐久性を飛躍的に向上させることで一般産業機器に広汎に使用される複合ローラおよびその製造方法を提供することを目的としている。
【０００４】
【課題を解決するための手段】
本発明の複合ローラは、車軸または回転軸に支持される芯金としてのハブ部材を有し、このハブ部材の外周に沿って緩衝、防振および吸音する表面弾性部材を接合して一体化されてなるものであって、該表面弾性部材が、補強層および弾性材被覆層からなる積層体であり、補強層は結合剤含浸紐材を捲回してハブ部材の外周面に嵌合される断面山形状の輪環状に加熱処理したものであり、この補強層の上から弾性材被覆層を接合して構成されている。
かかる複合ローラは、芯治具の外周面に沿って結合剤を含浸させた紐材を連続捲回して断面山形状で輪環状に補強層を形成した後、補強層の外周面に沿って弾性材被覆層を形成し、弾性材被覆層を形成させた補強層を加熱処理した後に芯治具から取り外してこれらの積層体である表面弾性部材を形成し、該表面弾性部材をハブ部材の外周面に嵌合させて接合することによって製造される。
かかる複合ローラはまた、芯治具の外周面に沿って結合剤を含浸させた紐材を連続捲回して断面山形状で輪環状の補強層を形成して加熱処理した後、この輪環状の補強層を芯治具から取り外して金型にセットし、補強層の外周面に沿って弾性材被覆層を射出成形またはプレス成形してこれらの積層体である表面弾性部材を形成し、金型から離型された輪環状の表面弾性部材をハブ部材の外周面に嵌合させて接合することによっても製造される。
【０００５】
【作用】
表面弾性部材は輪環状に単体成形され、ハブ部材の外周面への嵌合により接合して一体化される。緩衝、防振、吸音するための表面弾性部材は、補強層とこの上に成形される弾性材被覆層との２層からなる積層体であり、補強層は結合剤 ( バインダー ) を含浸させた紐材を連続捲回して断面山形状の輪環状（ハブ部材の外周面に嵌合して接合できる内径を有する）に加熱処理される。紐材による補強層の断面を山形状とすることで、表面弾性部材ではそのローラ幅方向の両端部と中央部において、負荷荷重や回転周速度による圧縮応力と引張応力との繰返し応力に対して強化され、表面弾性部材の亀裂、割れあるいはローラ自身の発生熱による劣化等で消耗不良化を最小限に抑えることができ、耐久性が高められる。
【０００６】
【実施例】
以下、本発明による複合ローラおよびその製造方法の実施例を図に基づいて説明する。
図１および図２は、本発明の実施例の一部断面による斜視図および正面断面図を示している。複合ローラ１は回転軸線Ｃ−Ｃ上の図示せぬ回転シャフト、ホイールまたは回転軸受を介して機器に軸支され、それらの回転軸に嵌合支持される芯金のハブ部材２を有している。図には、ハブ部材２はベアリング等を嵌着して取り付けられるよう輪環状に形成したものが示されてはいるが、それに限定されることはなく、完全に円形としたもので回転シャフトを挿通させるなど、回転駆動部の形態に自在に対応させることができる。ハブ部材２の材質は、機器や使用条件によって自在に対応させ、鉄、鋳鉄およびアルミニウム等の金属はもとより、樹脂、木材など多種多様なものが用いられる。こうしたハブ部材２の外周面には、緩衝、防振および吸音機能を兼備した表面弾性部材３が接着剤、かしめ嵌合あるいは溶着などいずれか好適手段でもって嵌合され、接合されている。
【０００７】
表面弾性部材３は、ローラ幅Ｂ方向にハブ部材２と同一幅を有し、この発明でいう補強層１０と弾性材被覆層２０との積層体である。ハブ部材２の外周面に沿って接合される下層の補強層１０は次のような構成となっている。この補強層１０は長尺の紐材１１を結合剤に含浸させた後に連続して断面山形状に捲回し、ハブ部材２の外周面に接合可能な内径を有する輪環状に成形されるものである。紐材１１の材質には、綿または絹等の天然繊維、ナイロンまたはテトロン等の合成繊維、ガラスウール、カーボンファイバー、セラミックスファイバー、ポリイミド系樹脂材、そして金属または合金材（鋼線、銅線、アルミニウム線）等の広汎にわたる材料が可能であり、機器や使用条件に相応する耐久性を備えたものが選定される。かかる材質でもって形成された紐材１１はエポキシ樹脂、ウレタンゴム、シリコーンゴム等を結合剤（バインダー）として含浸させて、引張力等に対し強化されている。こうした紐材１１の長尺のものをハブ部材２の外周面にその幅Ｂ一杯に連続して巻き付け、ローラ転圧後に含浸された結合剤を加熱処理してやや小さな両端部の凸部１２、１２と中央部の凸部１３とによる断面「山」形状に形成されている。
【０００８】
また、上記補強層１０の上からコーティングされる弾性材被覆層２０は、ウレタンゴムやシリコ−ンゴム等のゴム状弾性材、あるいはＴＰＵ（熱可塑性ウレタン）を溶融状態から射出成形などして、補強層１０の上からこれを完全に被覆するような形で所定の厚さに成形されている。この弾性材被覆層２０によって、ローラ駆動時に作用する機器からの負荷荷重を緩衝し、防振、吸音など機能させている。
【０００９】
このように補強層１０および弾性材被覆層２０を積層した全体が輪環状の表面弾性部材３は、別に単体成形されてハブ部材２の外周面へ接合される。表面弾性部材３はハブ部材２の外周面に接着剤、かしめ嵌合、溶着等いずれか好適手段でもって嵌合、接合され、一体化して複合ローラ１が得られる。
【００１０】
次に、図３および図４によって、本発明の製造方法の第１実施例として、ハブ部材２の外周面に接合される前の工程として表面弾性部材３の製造例を説明する。まず、図３に示すように、成形治具としての芯治具４を用い、紐材１１による補強層１０がハブ部材２の外周面に接合できる内径を有する輪環状に成形される。即ち、エポキシ樹脂、ウレタンゴム、シリコーンゴム等のバインダー液中に浸漬させて含浸させた長尺の紐材１１が準備され、この紐材１１を芯治具４に連続して巻き付ける。巻き付けによってローラ幅Ｂ方向でいう両端部に凸部１２、１２を形成し、幅中央には凸部１３を形成する。複合ローラ１として使用中の負荷や回転周速度で発生する圧縮応力と引張応力の繰返し応力分布の強弱を配慮し、両端部の凸部１２、１２は幅中央部の凸部１３よりもやや小さめに形成され、あたかも山の形状の如くになっている。山形にする成形はローラ転圧などによって行うことができる。
【００１１】
成形により補強層形成過程を終えると、図４に示すように、芯治具４に担持された状態で更に補強層１０の上からこれを完全に被覆するような形で所定の厚さに弾性材被覆層２０を例えば表面コートした後に、弾性材被覆層を形成させた補強層を加熱処理などして設ける。補強層１０と弾性材被覆層２０が一体化した積層体を芯治具４から抜き外し、表面弾性部材３が得られる。次いで、抜き外された輪環状の表面弾性部材３を既に準備されているハブ部材２の外周面に適宜手段で嵌合し、接合して一体化し、複合ローラ１を製造する。
【００１２】
これに対して、図５は本発明による製造方法の第２実施例を示している。この第２実施例の製造方法では、表面弾性部材３における加熱処理工程は、図３に示された補強層１０に対してのみ行われる。すなわち、図３のように、補強層１０が紐材１１の連続捲回により断面山形状に成形された後、芯治具４上に取り付けたままの状態でその山形の補強層１０を加熱処理する。加熱処理後、補強層１０を芯治具４から抜き外す。この段階で弾性材被覆層２０は未だ設けられていない。輪環状の補強層１０は上下金型５、６にセットされ、所要材質によるポリマー溶融材を金型で射出成形する。冷却後、離型によって補強層１０の上に弾性材被覆層２０が積層された表面弾性部材３を得る。この表面弾性部材３を既に準備されているハブ部材２の外周面に適宜手段で嵌合し、接合して一体化し、複合ローラ１を製造する。
【００１３】
なお、以上の如き製造工程にあって、図６に示すように、ハブ部材２の外周面全域には、表面弾性部材３の補強層１０との接合に備え、表面を凹凸部もしくは刻み溝２ａなどを加工しておき、補強層１０の食い付きを良好ならしめて、接合強度を高めるようにすることが望ましい。刻み溝２ａに代わる手段としては、ショットブラスト、ローレットがけ、あるいはグルービング等による表面荒しも可能である。
【００１４】
上記実施例から明らかなように、表面弾性部材３では、その内部に補強層１０として紐材１１を連続捲回して弾性材被覆層２０に埋設させた形となっているので、表面弾性部材３に強い堅締力が働き、エア侵入による剥離の心配も解消される。また、表面弾性部材３の熱膨張に対して補強し得るので、ハブ部材２の外周面との間、更には補強層１０と弾性材被覆層２０との間の各層間接合部にかかる繰返し応力は軽減される。また、所要の耐久性の確保はもとより、緩衝、防振、吸音を兼備することは、それらを優先するとそれだけ表面弾性部材は材質的にも低硬度となり、磨滅、亀裂、割れの原因となるが、各実施例ではそれら全てを払拭できる利点がある。搭載例についていえば、例えばジェットコースターの如き非常に過酷な条件下で使用されても所要の耐久性が得られ、またプリンタの如きＯＡ機器用給紙器では耐久性はもとより、防振および防音に格別な効果を発揮できる。
【００１５】
【発明の効果】
本発明による複合ローラは、芯金となるハブ部材の外周面を表面弾性部材で被覆してあって、緩衝、防振、吸音するその表面弾性部材に紐材を断面山形状に連続捲回した補強層が形成されているので、表面弾性部材が負荷荷重や回転周速度によって発生する圧縮応力や引張応力の繰返し応力に対して強化され、亀裂、割れ、あるいはローラ自身の発生熱による劣化等で不良化するのを最小限に抑え、耐久性が格段に向上して多種多様な機器の回転駆動部に好適に利用することができる。
【図面の簡単な説明】
【図１】本発明による実施例の複合ローラの一部断面による斜視図である。
【図２】実施例の複合ローラの正面断面図である。
【図３】本発明による製造方法の第１実施例として複合ローラの製造工程で補強層形成段階を示す正面断面図である。
【図４】製造方法の第１実施例として複合ローラの製造工程で弾性材被覆形成段階を示す正面断面図である。
【図５】本発明による製造方法の第２実施例として複合ローラの製造工程で金型を用いた射出成形に形態を示す正面断面図である。
【図６】各実施例に用いられる芯金としてのハブ部材の外周面を表面荒しした形態の部分的な正面断面図である。
【符号の説明】
１複合ローラ
２ハブ部材
３表面弾性部材
４芯治具
５、６金型
１０補強層
１１紐材
１２、１３紐材による大小凸部
２０弾性材被覆層[0001]
[Industrial application fields]
The present invention relates to a composite roller used in a rotation drive unit of general industrial equipment and a method for manufacturing the same.
[0002]
[Prior art]
Conventionally, there are a wide range of equipment such as step rollers for escalators, guide rollers for elevators, wheel rollers for various carts and amusement vehicles (coasters), automatic doors, casters for medical beds, and rollers for OA equipment mounts. A rotating roller is used as a transmission roller for a built-in rotation driving unit or as a wheel roller for moving or transporting the device itself.
Since all of these rotating rollers are used under severe driving conditions, they are often consumed and end in a short life. For the failure due to wear, for example, cracks and cracks in an elastic member such as rubber used for the roller surface layer and joining and peeling from the cored bar member account for the majority.
[0003]
[Problems to be solved by the invention]
The cause of cracks and cracks is the relationship between the load applied to the roller and the rotational peripheral speed, and in particular, the elastic rubber member on the roller surface layer is subjected to repeated stress due to compressive stress and tensile stress. May lead to. In order to reduce the repeated stress, it is necessary to reduce the load and reduce the elastic strain and the like. Therefore, generally, the elastic rubber member which is the roller surface layer is made of a material having a high hardness. In addition to the occurrence of the above-described elastic strain, the entire roller generates heat when the rotational peripheral speed is high, and the bonding due to the difference in thermal expansion coefficient between the core metal member and the roller surface layer occurs. In many cases, tensile stress acts on the layer, and the adhesive is thermally deteriorated to reduce its adhesive strength. In particular, when stainless steel, copper, aluminum, or the like is used as the material of the cored bar member, there is a problem that sufficient bonding strength with an adhesive cannot be obtained with the elastic rubber member of the roller surface layer. In the case of a casting or the like, there is a problem that the corrosion resistance is low and the bonding force with the elastic rubber member is reduced due to corrosion.
It is an object of the present invention to provide a composite roller widely used in general industrial equipment and a method for manufacturing the same by dramatically improving durability against peeling between the cored bar member and the roller surface layer. .
[0004]
[Means for Solving the Problems]
The composite roller of the present invention has a hub member as a metal core supported by an axle or a rotary shaft, and is joined by integrating a surface elastic member that absorbs, dampens and absorbs sound along the outer periphery of the hub member. The surface elastic member is a laminate composed of a reinforcing layer and an elastic material covering layer, and the reinforcing layer is a cross-section that is wound around the binder-impregnated string material and fitted to the outer peripheral surface of the hub member. It is heat-treated into a mountain-shaped ring, and is constituted by joining an elastic material covering layer from above the reinforcing layer.
Such a composite roller is formed by continuously winding a string material impregnated with a binder along the outer peripheral surface of a core jig to form a reinforcing layer in an annular shape with a cross-sectional mountain shape, and then elasticating along the outer peripheral surface of the reinforcing layer. After forming the material covering layer and heat-treating the reinforcing layer on which the elastic material covering layer is formed , the surface elastic member which is a laminate of these is removed from the core jig , and the surface elastic member is attached to the outer periphery of the hub member. Manufactured by fitting and joining the surfaces.
Such a composite roller is also formed by continuously winding a string material impregnated with a binder along the outer peripheral surface of the core jig to form an annular reinforcing layer having a mountain shape in cross section, and then heat-treating the annular material. The reinforcing layer is removed from the core jig and set on the mold, and the elastic material coating layer is injection molded or press-molded along the outer peripheral surface of the reinforcing layer to form a surface elastic member that is a laminate of these, and the mold It is also manufactured by fitting a ring-shaped surface elastic member separated from the outer peripheral surface of the hub member and joining them.
[0005]
[Action]
The surface elastic member is formed as a single ring in a ring shape, and is joined and integrated by fitting to the outer peripheral surface of the hub member. Buffering, vibration reduction, the surface acoustic member for absorbing a laminate comprising two layers of an elastic material coating layer is formed on the reinforcing layer, reinforcing layer impregnated with a binding agent (binder) The string material is continuously wound and heat-treated into a ring-shaped annular ring (having an inner diameter that can be fitted to and joined to the outer peripheral surface of the hub member). By forming the cross section of the reinforcing layer of the string material into a mountain shape, the surface elastic member is subjected to repeated stresses such as compressive stress and tensile stress due to load load and rotational peripheral speed at both ends and center in the roller width direction. As a result, the deterioration of wear due to cracks or cracks in the surface elastic member or deterioration due to heat generated by the roller itself can be minimized, and durability is enhanced.
[0006]
【Example】
Embodiments of a composite roller and a method for manufacturing the same according to the present invention will be described below with reference to the drawings.
1 and 2 show a perspective view and a front sectional view, respectively, of a partial cross section of an embodiment of the present invention. The composite roller 1 is supported by a device via a rotation shaft, a wheel, or a rotation bearing (not shown) on the rotation axis C-C, and has a metal core hub member 2 fitted and supported on the rotation shaft. Yes. In the drawing, the hub member 2 is shown in a ring shape so that it can be attached by fitting a bearing or the like. It is possible to freely correspond to the form of the rotation drive unit, such as insertion. The material of the hub member 2 can be freely selected according to the equipment and use conditions, and various materials such as resin, wood, etc. are used as well as metals such as iron, cast iron and aluminum. On the outer peripheral surface of the hub member 2, a surface elastic member 3 having a buffering function, a vibration isolating function, and a sound absorbing function is fitted and joined by any suitable means such as an adhesive, caulking fitting or welding.
[0007]
The surface elastic member 3 has the same width as the hub member 2 in the roller width B direction, and is a laminate of the reinforcing layer 10 and the elastic material coating layer 20 referred to in the present invention. The lower reinforcing layer 10 joined along the outer peripheral surface of the hub member 2 has the following configuration. The reinforcing layer 10 is formed into an annular shape having an inner diameter that can be joined to the outer peripheral surface of the hub member 2 by continuously winding the long string material 11 in a binder and then winding the reinforcing layer 10 into a mountain shape. is there. The material of the string material 11 includes natural fibers such as cotton or silk, synthetic fibers such as nylon or tetron, glass wool, carbon fibers, ceramic fibers, polyimide resin materials, and metal or alloy materials (steel wire, copper wire, A wide range of materials such as an aluminum wire is possible, and a material having durability corresponding to the equipment and use conditions is selected. The string 11 formed of such a material is impregnated with an epoxy resin, urethane rubber, silicone rubber or the like as a binder (binder), and is strengthened against tensile force or the like. Such a long string member 11 is continuously wound around the outer peripheral surface of the hub member 2 to the full width B, and the binder 12 impregnated after the roller rolling is heat-treated, so that the convex portions 12 and 12 at the slightly small end portions are used. And the convex portion 13 at the center is formed in a cross-sectional “mountain” shape.
[0008]
The elastic material covering layer 20 coated from above the reinforcing layer 10 is reinforced by injection molding or the like from a molten elastic material such as urethane rubber or silicone rubber or TPU (thermoplastic urethane). The layer 10 is formed to have a predetermined thickness so as to completely cover the layer 10. The elastic material coating layer 20 functions as a vibration isolator and a sound absorber by buffering the load applied from the device acting when the roller is driven.
[0009]
Thus, the entire ring-shaped surface elastic member 3 in which the reinforcing layer 10 and the elastic material covering layer 20 are laminated is separately molded and joined to the outer peripheral surface of the hub member 2. The surface elastic member 3 is fitted and joined to the outer peripheral surface of the hub member 2 by any suitable means such as an adhesive, caulking fitting, welding, and the like, and integrated to obtain the composite roller 1.
[0010]
Next, as a first embodiment of the manufacturing method of the present invention, a manufacturing example of the surface elastic member 3 will be described as a step before being joined to the outer peripheral surface of the hub member 2 with reference to FIGS. First, as shown in FIG. 3, using a core jig 4 as a forming jig, the reinforcing layer 10 made of the string material 11 is formed into an annular shape having an inner diameter that can be joined to the outer peripheral surface of the hub member 2. That is, a long string material 11 that is immersed and impregnated in a binder liquid such as epoxy resin, urethane rubber, or silicone rubber is prepared, and the string material 11 is continuously wound around the core jig 4. By winding, convex portions 12 are formed at both ends in the roller width B direction, and a convex portion 13 is formed at the center of the width. Considering the strength of the cyclic stress distribution of compressive stress and tensile stress generated at the load and rotational peripheral speed used as the composite roller 1, the convex portions 12, 12 at both ends are slightly smaller than the convex portion 13 at the center of the width. It looks like a mountain shape. The forming into a chevron can be performed by roller rolling.
[0011]
When the reinforcing layer forming process is completed by molding, as shown in FIG. 4, the reinforcing layer 10 is elastically applied to a predetermined thickness so as to completely cover the reinforcing layer 10 while being supported by the core jig 4. For example, after the material coating layer 20 is surface-coated , the reinforcing layer on which the elastic material coating layer is formed is provided by heat treatment or the like. The laminated body in which the reinforcing layer 10 and the elastic material covering layer 20 are integrated is removed from the core jig 4 to obtain the surface elastic member 3. Next, the annular ring-shaped surface elastic member 3 that has been removed is fitted to the outer peripheral surface of the hub member 2 that has already been prepared by appropriate means, joined, and integrated to manufacture the composite roller 1.
[0012]
On the other hand, FIG. 5 shows a second embodiment of the manufacturing method according to the present invention. In the manufacturing method of the second embodiment, the heat treatment step in the surface elastic member 3 is performed only on the reinforcing layer 10 shown in FIG. That is, as shown in FIG. 3, after the reinforcing layer 10 is formed into a cross-sectional mountain shape by continuous winding of the string material 11, the mountain-shaped reinforcing layer 10 is heat-treated in a state of being attached on the core jig 4. To do. After the heat treatment , the reinforcing layer 10 is removed from the core jig 4. At this stage, the elastic material coating layer 20 is not yet provided. The annular reinforcing layer 10 is set on the upper and lower molds 5 and 6, and a polymer melt material of a required material is injection-molded with the mold. After cooling, the surface elastic member 3 in which the elastic material covering layer 20 is laminated on the reinforcing layer 10 is obtained by releasing. The surface elastic member 3 is fitted to the outer peripheral surface of the hub member 2 that has already been prepared by appropriate means, joined and integrated to manufacture the composite roller 1.
[0013]
In the manufacturing process as described above, as shown in FIG. 6, the entire surface of the outer peripheral surface of the hub member 2 is provided for bonding with the reinforcing layer 10 of the surface elastic member 3, and the surface is provided with uneven portions or cut grooves 2a. It is desirable that the reinforcing layer 10 is made to bite well to increase the bonding strength. As means for replacing the notch groove 2a, surface roughening by shot blasting, knurling, grooving or the like is also possible.
[0014]
As apparent from the above embodiment, the surface elastic member 3 has a shape in which the string material 11 is continuously wound as the reinforcing layer 10 and embedded in the elastic material covering layer 20 in the surface elastic member 3. The strong tightening force works, and the fear of peeling due to air intrusion is also eliminated. Further, since it can reinforce against the thermal expansion of the surface elastic member 3, it is possible to repetitive stress applied to each interlayer joint between the outer peripheral surface of the hub member 2 and between the reinforcing layer 10 and the elastic material covering layer 20. Is alleviated. Also, in addition to ensuring the required durability, combining cushioning, vibration isolation, and sound absorption gives priority to them, and the surface elastic member has a low hardness in terms of material, which causes wear, cracks, and cracks. In each embodiment, there is an advantage that all of them can be wiped off. As for installation examples, the required durability can be obtained even when used under extremely severe conditions such as a roller coaster. In addition, the paper feeder for office automation equipment such as a printer is not only durable but also vibration and soundproof. A special effect can be demonstrated.
[0015]
【The invention's effect】
In the composite roller according to the present invention, the outer peripheral surface of the hub member serving as a metal core is covered with a surface elastic member, and the string material is continuously wound in a cross-sectional mountain shape on the surface elastic member that absorbs, damps, and absorbs sound. Since the reinforcing layer is formed, the surface elastic member is strengthened against the repeated stress of compressive stress and tensile stress generated by the load load and rotational peripheral speed, and cracks, cracks, deterioration due to heat generated by the roller itself, etc. Deterioration is minimized, durability is remarkably improved, and it can be suitably used for a rotational drive unit of various devices.
[Brief description of the drawings]
FIG. 1 is a perspective view with a partial cross section of a composite roller according to an embodiment of the present invention.
FIG. 2 is a front sectional view of the composite roller of the embodiment.
FIG. 3 is a front sectional view showing a reinforcing layer forming step in the manufacturing process of the composite roller as the first embodiment of the manufacturing method according to the present invention.
FIG. 4 is a front cross-sectional view showing an elastic material coating forming step in the manufacturing process of the composite roller as the first embodiment of the manufacturing method.
FIG. 5 is a front sectional view showing a form of injection molding using a mold in a composite roller manufacturing process as a second embodiment of the manufacturing method according to the present invention;
FIG. 6 is a partial front sectional view of a form in which the outer peripheral surface of a hub member as a core metal used in each embodiment is roughened.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Composite roller 2 Hub member 3 Surface elastic member 4 Core jig | tool 5, 6 Mold 10 Reinforcement layer 11 String material 12, 13 Large and small convex part 20 by a string material Elastic material coating layer

Claims

車軸または回転軸に支持される芯金としてのハブ部材を有し、このハブ部材の外周に沿って表面弾性部材を接合して一体化されてなる複合ローラであって、
該表面弾性部材が、補強層および弾性材被覆層からなる積層体であり、補強層は結合剤含浸紐材を捲回してハブ部材の外周面に嵌合される断面山形状の輪環状に加熱処理したもので、この補強層の上から弾性材被覆層を接合していることを特徴とする複合ローラ。A composite roller having a hub member as a metal core supported by an axle or a rotary shaft, and being integrated by joining a surface elastic member along an outer periphery of the hub member;
The surface elastic member is a laminate composed of a reinforcing layer and an elastic material covering layer, and the reinforcing layer is wound around a binder-impregnated string material and heated in an annular shape having a cross-sectional mountain shape that is fitted to the outer peripheral surface of the hub member. A composite roller which has been processed and has an elastic material covering layer bonded onto the reinforcing layer.

車軸または回転軸に支持される芯金としてのハブ部材を有し、このハブ部材の外周に沿って表面弾性部材を接合して一体化されてなる複合ローラの製造方法であって、
芯治具の外周面に沿って結合剤を含浸させた紐材を連続捲回して断面山形状で輪環状の補強層を形成した後、補強層の外周面に沿って弾性材被覆層を形成し、弾性材被覆層を形成させた補強層を加熱処理した後に芯治具から取り外してこれらの積層体である表面弾性部材を形成し、該表面弾性部材をハブ部材の外周面に嵌合させて接合することを特徴とする複合ローラの製造方法。A manufacturing method of a composite roller having a hub member as a core metal supported by an axle or a rotating shaft and joining and integrating a surface elastic member along an outer periphery of the hub member,
A string material impregnated with a binder is continuously wound along the outer peripheral surface of the core jig to form an annular reinforcing layer with a cross-sectional mountain shape, and then an elastic material covering layer is formed along the outer peripheral surface of the reinforcing layer Then, after heat-treating the reinforcing layer on which the elastic material coating layer is formed, it is removed from the core jig to form a surface elastic member that is a laminate of these, and the surface elastic member is fitted to the outer peripheral surface of the hub member. And a method of manufacturing the composite roller.

車軸または回転軸に支持される芯金としてのハブ部材を有し、このハブ部材の外周に沿って表面弾性部材を接合して一体化されてなる複合ローラの製造方法であって、
芯治具の外周面に沿って結合剤を含浸させた紐材を連続捲回して断面山形状で輪環状の補強層を形成して加熱処理した後、この輪環状の補強層を芯治具から取り外して金型にセットし、補強層の外周面に沿って弾性材被覆層を射出成形またはプレス成形してこれらの積層体である表面弾性部材を形成し、金型から離型された輪環状の表面弾性部材をハブ部材の外周面に嵌合させて接合することを特徴とする複合ローラの製造方法。A manufacturing method of a composite roller having a hub member as a core metal supported by an axle or a rotating shaft and joining and integrating a surface elastic member along an outer periphery of the hub member,
A string material impregnated with a binder is continuously wound along the outer peripheral surface of the core jig to form an annular reinforcing layer with a cross-sectional mountain shape and heat-treated, and then the annular reinforcing layer is attached to the core jig. The elastic material coating layer is injection-molded or press-molded along the outer peripheral surface of the reinforcing layer to form a surface elastic member that is a laminate of these, and the ring released from the mold. A method of manufacturing a composite roller, wherein an annular surface elastic member is fitted to and joined to an outer peripheral surface of a hub member.

表面弾性部材が接合されるハブ部材の外周面に、予め凹凸部または刻み溝が形成されている請求項２または３記載の複合ローラの製造方法。 The method for manufacturing a composite roller according to claim 2 or 3, wherein an uneven portion or a groove is formed in advance on the outer peripheral surface of the hub member to which the surface elastic member is joined.