JP6189685B2

JP6189685B2 - Sliding member using ultra high molecular weight polyethylene plate

Info

Publication number: JP6189685B2
Application number: JP2013179412A
Authority: JP
Inventors: 久保田　修市; 修市久保田
Original assignee: Oiles Corp
Current assignee: Oiles Corp
Priority date: 2013-08-30
Filing date: 2013-08-30
Publication date: 2017-08-30
Anticipated expiration: 2033-08-30
Also published as: JP2015047723A

Description

本発明は、超高分子量ポリエチレン製板材を用いた摺動部材に関する。 The present invention relates to a sliding member using the ultra-high molecular weight polyethylene plate material.

分子量が５０万以上（多くは１００万〜７００万）の超高分子量ポリエチレンは、金属よりも耐摩耗性に優れるため、各種の部材が摺動する箇所に使用される摺動部材として好適である。 Ultra-high molecular weight polyethylene having a molecular weight of 500,000 or more (mostly 1,000,000 to 7,000,000) is more suitable as a sliding member used in places where various members slide because it has better wear resistance than metal. .

特表２０１０／１０１２１４Special table 2010/101214

しかしながら、超高分子量ポリエチレンは、分子量を５０万以上に高めたポリエチレンであり、溶融しても粘度が高い。そのため、所望の形状に射出成形できず、従来、超高分子量ポリエチレンを用いた所望の形状の部材、部品を製造することができなかった。
本発明は前記事情に鑑み案出されたものであって、本発明の目的は、超高分子量ポリエチレンを用いて所望の形状の部材、部品を製造することができる超高分子量ポリエチレン製板材を用いた摺動部材を提供することにある。 However, ultra high molecular weight polyethylene is a polyethylene having a molecular weight increased to 500,000 or more, and has a high viscosity even when melted. Therefore, it cannot be injection-molded into a desired shape, and conventionally, members and parts having a desired shape using ultrahigh molecular weight polyethylene cannot be produced.
The present invention was devised in view of the above circumstances, an object of the present invention, the desired shape using an ultra high molecular weight polyethylene member, an ultra high molecular weight polyethylene plate material capable of producing parts and to provide a sliding member using.

前記目的を達成するため請求項１記載の発明は、板状の芯材と、前記芯材の厚さ方向の両面に配置された第１、第２のシートを備え、前記芯材は前記第１、第２のシートよりも強度、剛性を有すると共に高い融点を有し塑性変形可能な材料からなり、その厚さ方向に貫通する複数の貫通部が形成され、前記第１のシートは、分子量が５０万以上の超高分子量ポリエチレンから形成され、前記第２のシートは、熱溶融した際に前記第１のシートに溶着可能な合成樹脂から形成され、前記第１、第２のシートは、それらの部分が前記貫通部に充填された充填部分を介して互いに溶着され前記芯材と一体化されている超高分子量ポリエチレン製板材からなる摺動部材であって、前記摺動部材は板状を呈し、前記芯材は、前記複数の貫通部が形成された貫通領域部と、前記貫通領域部の両側に接続され複数の取り付け孔が形成された取り付け領域部とを有し、前記第１、第２のシートは前記貫通領域部と同一の輪郭を有して前記貫通領域部を覆うように前記貫通領域部の両面に配置されていることを特徴とする。
請求項２記載の発明は、板状の芯材と、前記芯材の厚さ方向の両面に配置された第１、第２のシートを備え、前記芯材は前記第１、第２のシートよりも強度、剛性を有すると共に高い融点を有し塑性変形可能な材料からなり、その厚さ方向に貫通する複数の貫通部が形成され、前記第１のシートは、分子量が５０万以上の超高分子量ポリエチレンから形成され、前記第２のシートは、熱溶融した際に前記第１のシートに溶着可能な合成樹脂から形成され、前記第１、第２のシートは、それらの部分が前記貫通部に充填された充填部分を介して互いに溶着され前記芯材と一体化されている超高分子量ポリエチレン製板材からなる摺動部材であって、前記摺動部材は、滑り軸受を構成する円筒部を備え、前記円筒部の軸方向の少なくとも一部の全周に、前記円筒部の半径方向に弾性変形可能な凹凸が形成されていることを特徴とする。
また、請求項３記載の発明は、前記凹凸は、大径部と、前記大径部よりも直径の小さい小径部とが前記円筒部の軸方向に交互に並べられることで構成されていることを特徴とする。
また、請求項４記載の発明は、前記凹凸は、前記円筒部の軸方向に延在する凸部と凹部とが前記円筒部の周方向に交互に並べられて構成されていることを特徴とする。
また、請求項５記載の発明は、前記摺動部材は、前記円筒部の軸方向の端部に設けられ環板状に拡がる鍔部をさらに備え、前記鍔部の少なくとも周方向に間隔をおいた複数箇所に、前記円筒部の軸方向に弾性変形可能な凹凸が設けられていることを特徴とする。
また、請求項６記載の発明は、前記凹凸は、前記鍔部の中心を通り前記鍔部の直径方向に延在する凸部と凹部とが前記鍔部の周方向に交互に並べられて構成されていることを特徴とする。
また、請求項７記載の発明は、前記凹凸は、前記鍔部の中心を中心とした環状の凸部と環状の凹部とが前記鍔部の半径方向に交互に並べて構成されていることを特徴とする。
また、請求項８記載の発明は、前記第２のシートは、前記第１のシートと同一の超高分子量ポリエチレンから形成されていることを特徴とする。
また、請求項９記載の発明は、前記芯材は、金属材材料で形成されていることを特徴とする。
また、請求項１０記載の発明は、前記第１のシートの厚さは、前記第２のシートの厚さよりも大きい寸法で形成されていることを特徴とする。 In order to achieve the above object, the invention described in claim 1 includes a plate-shaped core material and first and second sheets disposed on both surfaces in the thickness direction of the core material, and the core material includes the first core material. 1. It is made of a material that has strength and rigidity higher than those of the second sheet and has a high melting point and can be plastically deformed, and has a plurality of through portions penetrating in the thickness direction. The first sheet has a molecular weight Is formed of ultrahigh molecular weight polyethylene having a molecular weight of 500,000 or more, and the second sheet is formed of a synthetic resin that can be welded to the first sheet when thermally melted, and the first and second sheets are A sliding member made of an ultra-high molecular weight polyethylene plate material in which those portions are welded to each other through a filling portion filled in the penetrating portion and integrated with the core material , the sliding member having a plate shape the exhibits, the core material, the plurality of penetrating portions are formed A transmembrane region portion, which is connected to both sides of the transmembrane region portion and a plurality of attachment regions unit mounting hole is formed, the first, second sheet has the same contour as the transmembrane region portion It is arranged on both sides of the penetration region portion so as to cover the penetration region portion.
The invention according to claim 2 includes a plate-shaped core material and first and second sheets disposed on both surfaces in the thickness direction of the core material, wherein the core material is the first and second sheets. The first sheet is made of a material that has higher strength and rigidity, has a high melting point, and can be plastically deformed, and penetrates in the thickness direction. The first sheet has a molecular weight exceeding 500,000. Formed from high molecular weight polyethylene, the second sheet is formed from a synthetic resin that can be welded to the first sheet when heat-melted, and the first and second sheets have their parts penetrating through the second sheet. A sliding member made of an ultra-high molecular weight polyethylene plate material which is welded to each other through a filling portion filled in the portion and integrated with the core material , wherein the sliding member is a cylindrical portion constituting a sliding bearing All the provided, at least a portion of the axial direction of the cylindrical portion In, wherein the radially elastically deformable irregularities of the cylindrical portion.
Moreover, the invention according to claim 3 is configured such that the unevenness is configured by alternately arranging a large diameter portion and a small diameter portion having a smaller diameter than the large diameter portion in the axial direction of the cylindrical portion. It is characterized by.
The invention according to claim 4 is characterized in that the concave and convex portions are configured by alternately arranging convex portions and concave portions extending in the axial direction of the cylindrical portion in the circumferential direction of the cylindrical portion. To do.
According to a fifth aspect of the present invention, the sliding member further includes a flange portion provided at an end portion in the axial direction of the cylindrical portion and expanding in an annular plate shape, and is spaced at least in the circumferential direction of the flange portion. The plurality of locations are provided with irregularities that can be elastically deformed in the axial direction of the cylindrical portion.
The invention according to claim 6 is configured such that the projections and depressions that pass through the center of the flange portion and extend in the diameter direction of the flange portion are alternately arranged in the circumferential direction of the flange portion. It is characterized by being.
The invention according to claim 7 is characterized in that the concave and convex portions are formed by alternately arranging annular convex portions and annular concave portions centering on the center of the flange portion in the radial direction of the flange portion. And
The invention according to claim 8 is characterized in that the second sheet is formed of the same ultrahigh molecular weight polyethylene as the first sheet.
The invention according to claim 9 is characterized in that the core material is formed of a metal material.
The invention according to claim 10 is characterized in that the thickness of the first sheet is larger than the thickness of the second sheet.

本発明によれば、第１、第２のシートは、充填部分を介して芯材と一体化されている。また、芯材は塑性変形可能であるため、超高分子量ポリエチレン製板材を所望の形状に加工することが可能となり、加工された所望の形状は、芯材により維持される。
したがって、超高分子量ポリエチレン製板材を所望の形状に加工することで得られた部材、部品の肉厚方向の一方の面は、第１のシートであり耐摩耗性に優れる超高分子量ポリエチレンシートとなっており、従来製造することができなかった所望形状の超高分子量ポリエチレン製の部材、部品を製造することが可能となる。
本発明によれば、貫通部における第１、第２のシートの溶着性を確保し、第１、第２のシートの芯材との一体化を図る上で有利となる。
本発明によれば、鋼材などの金属材料は、安価で簡単に入手できるため、超高分子量ポリエチレン製板材のコストダウンを図る上で有利となる。
本発明によれば、超高分子量ポリエチレン製板材から形成される部材、部品に要求される耐摩耗性に、第１のシートの厚さで対応することが可能となる。
本発明によれば、取り付け領域部を介して装置や機械の使用箇所に超高分子量ポリエチレン製板材を取り付けることができるので、超高分子量ポリエチレン製板材を所望の箇所に簡単に配置する上で有利となる。
本発明によれば、超高分子量ポリエチレン製板材を、円筒部を有する滑り軸受けとして使用できる。
本発明によれば、滑り軸受けで軸を回転可能に支持する際に、締め代を凹凸で吸収でき、軸受孔内のがたつきを防止する上で有利となる。
本発明によれば、鍔部で円筒部の軸方向の位置決めを行なえ、鍔部の凹凸により滑り軸受けの軸方向のがたつきを吸収する上で有利となる。
本発明によれば、超高分子量ポリエチレン製板材を簡単に確実に製造できる。
本発明によれば、貫通部における第１、第２のシートの溶着性を確保し、第１、第２のシートの芯材との一体化を図る上で有利となる。 According to this invention , the 1st, 2nd sheet | seat is integrated with the core material through the filling part. Further, since the core material can be plastically deformed, the ultrahigh molecular weight polyethylene plate material can be processed into a desired shape, and the processed desired shape is maintained by the core material.
Therefore, the member obtained by processing the ultra-high molecular weight polyethylene plate material into a desired shape, one surface in the thickness direction of the part is the first sheet and an ultra-high molecular weight polyethylene sheet excellent in wear resistance; Therefore, it becomes possible to manufacture members and parts made of ultrahigh molecular weight polyethylene having a desired shape that could not be manufactured conventionally.
According to the present invention , it is advantageous to secure the weldability of the first and second sheets in the penetrating portion and to integrate with the core material of the first and second sheets.
According to the present invention , metal materials such as steel are inexpensive and easily available, which is advantageous in reducing the cost of ultrahigh molecular weight polyethylene plate materials.
According to the present invention , it is possible to cope with the wear resistance required for members and parts formed from an ultrahigh molecular weight polyethylene plate by the thickness of the first sheet.
According to the present invention, it is possible to attach the ultrahigh molecular weight polyethylene plate material to the place where the apparatus or machine is used via the attachment region portion, which is advantageous in easily arranging the ultra high molecular weight polyethylene plate material at a desired location. It becomes.
According to the present invention , an ultra-high molecular weight polyethylene plate material can be used as a sliding bearing having a cylindrical portion.
According to the present invention , when the shaft is rotatably supported by the sliding bearing, the tightening allowance can be absorbed by the unevenness, which is advantageous in preventing rattling in the bearing hole.
According to the present invention , the cylindrical portion can be positioned in the axial direction by the flange portion, and it is advantageous in absorbing the shakiness in the axial direction of the sliding bearing by the unevenness of the flange portion.
According to the present invention , an ultra-high molecular weight polyethylene plate can be easily and reliably manufactured.
According to the present invention , it is advantageous to secure the weldability of the first and second sheets in the penetrating portion and to integrate with the core material of the first and second sheets.

第１の実施の形態の超高分子量ポリエチレン製板材の説明図で、（Ａ）は超高分子量ポリエチレン製板材の斜視図、（Ｂ）は同分解斜視図、（Ｃ）は同部分の断面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of the ultra high molecular weight polyethylene board | plate material of 1st Embodiment, (A) is a perspective view of an ultra high molecular weight polyethylene board material, (B) is the same exploded perspective view, (C) is sectional drawing of the same part. It is. 第２の実施の形態の超高分子量ポリエチレン製板材の斜視図である。It is a perspective view of the ultra high molecular weight polyethylene board | plate material of 2nd Embodiment. 超高分子量ポリエチレン製板材から得られた摺動部材の説明図で、（Ａ）は摺動部材の斜視図、（Ｂ）は同分解斜視図、（Ｃ）は同断面正面図である。It is explanatory drawing of the sliding member obtained from the board | plate material made from ultra high molecular weight polyethylene, (A) is a perspective view of a sliding member, (B) is the exploded perspective view, (C) is the cross-sectional front view. 超高分子量ポリエチレン製板材から得られた滑り軸受けの説明図で、（Ａ）は滑り軸受けの斜視図、（Ｂ）は同断面正面図である。It is explanatory drawing of the sliding bearing obtained from the board | plate material made from ultra high molecular weight polyethylene, (A) is a perspective view of a sliding bearing, (B) is the cross-sectional front view. （Ａ）は超高分子量ポリエチレン製板材から得られた円筒部に凹凸を有する滑り軸受けの斜視図、（Ｂ）は同部分の断面図である。(A) is a perspective view of the sliding bearing which has an unevenness | corrugation in the cylindrical part obtained from the ultrahigh molecular weight polyethylene board | plate material, (B) is sectional drawing of the part. 超高分子量ポリエチレン製板材から得られた円筒部に凹凸を有する滑り軸受けの斜視図である。It is a perspective view of the sliding bearing which has an unevenness | corrugation in the cylindrical part obtained from the ultrahigh molecular weight polyethylene board | plate material. 超高分子量ポリエチレン製板材から得られ円筒部に鍔部が設けられた滑り軸受けの斜視図である。It is a perspective view of the sliding bearing obtained from the ultra high molecular weight polyethylene plate material and having a collar portion provided on the cylindrical portion. 超高分子量ポリエチレン製板材から得られた円筒部と鍔部に凹凸を有する滑り軸受けの斜視図である。It is a perspective view of the sliding bearing which has an unevenness | corrugation in the cylindrical part and collar part obtained from the board | plate material made from ultra high molecular weight polyethylene.

以下、本発明の実施の形態を図面にしたがって説明する。
まず、図１を参照して第１の実施の形態から説明する。
超高分子量ポリエチレン製板材１０は、第１のシート１２と第２のシート１４と板状の芯材１６とを備え、第１のシート１２と第２のシート１４は、芯材１６の厚さ方向の両面に配置されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, the first embodiment will be described with reference to FIG.
The ultrahigh molecular weight polyethylene plate 10 includes a first sheet 12, a second sheet 14, and a plate-like core 16, and the first sheet 12 and the second sheet 14 have a thickness of the core 16. Arranged on both sides of the direction.

第１のシート１２は、超高分子量ポリエチレンで形成されている。
第２のシート１４は、熱溶融した際に第１のシート１２に溶着可能な合成樹脂で形成されている。
このような合成樹脂として、第１のシート１２を構成する超高分子量ポリエチレンと同一の超高分子量ポリエチレン、第１のシート１２を構成する超高分子量ポリエチレンと分子量が異なる超高分子量ポリエチレン、分子量が５０万に満たないポリエチレンなどが使用可能である。しかしながら、熱溶融した際の溶着性を考慮すると、第２のシート１４に、第１のシート１２を構成する超高分子量ポリエチレンと同一の超高分子量ポリエチレンを用いることが好ましい。
なお本発明で言う分子量は、ゲルパーミエーションクロマトグラフィー（ＧＰＣ）によりポリスチレン換算で測定された重量平均分子量を意味する。 The first sheet 12 is made of ultra high molecular weight polyethylene.
The second sheet 14 is formed of a synthetic resin that can be welded to the first sheet 12 when thermally melted.
As such a synthetic resin, the same ultrahigh molecular weight polyethylene as the ultrahigh molecular weight polyethylene constituting the first sheet 12, the ultrahigh molecular weight polyethylene having a molecular weight different from that of the ultrahigh molecular weight polyethylene constituting the first sheet 12, the molecular weight is Polyethylene and the like less than 500,000 can be used. However, considering the weldability when heat-melting, it is preferable to use the same ultrahigh molecular weight polyethylene as the ultrahigh molecular weight polyethylene constituting the first sheet 12 for the second sheet 14.
The molecular weight referred to in the present invention means a weight average molecular weight measured in terms of polystyrene by gel permeation chromatography (GPC).

芯材１６は板状を呈し、その厚さ方向に貫通する複数の貫通部１６０２を有している。
芯材１６を構成する材料は、超高分子量ポリエチレン製板材１０を所望の形状に加工した際にその形状を維持するため、第１、第２のシート１２、１４よりも強度、剛性を有することが必要である。
また、芯材１６を構成する材料は、第１、第２のシート１２、１４を溶融して圧着する際に溶融しないように、第１、第２のシート１２、１４よりも高い融点を有することが必要である。
また、芯材１６を構成する材料は、所望の形状に加工できるように塑性変形可能であることが必要である。
したがって、芯材１６は第１、第２のシート１２、１４よりも強度、剛性を有すると共に高い融点を有し塑性変形可能な材料で形成されている。このような材料として鋼材などの金属材料や、アラミド繊維、フェノール繊維などの合成樹脂材料、ガラス繊維などの無機材料が使用可能である。
本実施の形態では、芯材１６として金属材料を用いている。芯材１６は専用に製作してもよいが、芯材１６として市販品である金網やパンチングメタルなどが使用可能である。
第１、第２のシート１２、１４は、それらの部分が貫通部１６０２に充填された充填部分２０を介して互いに溶着され芯材１６と一体化されている。 The core member 16 has a plate shape and includes a plurality of through portions 1602 penetrating in the thickness direction.
The material constituting the core material 16 has strength and rigidity higher than those of the first and second sheets 12 and 14 in order to maintain the shape when the ultrahigh molecular weight polyethylene plate material 10 is processed into a desired shape. is necessary.
Moreover, the material which comprises the core material 16 has melting | fusing point higher than the 1st, 2nd sheet | seats 12 and 14 so that it may not melt when the 1st, 2nd sheet | seats 12 and 14 are fuse | melted and crimped | bonded. It is necessary.
Moreover, the material which comprises the core material 16 needs to be plastically deformable so that it can process into a desired shape.
Therefore, the core material 16 is formed of a material that has strength and rigidity higher than those of the first and second sheets 12 and 14 and has a high melting point and is plastically deformable. As such materials, metal materials such as steel materials, synthetic resin materials such as aramid fibers and phenol fibers, and inorganic materials such as glass fibers can be used.
In the present embodiment, a metal material is used as the core material 16. Although the core material 16 may be produced exclusively, a commercially available wire mesh or punching metal can be used as the core material 16.
The first and second sheets 12 and 14 are integrated with the core member 16 by being welded to each other through the filling portion 20 in which the through portions 1602 are filled.

ここで超高分子量ポリエチレン製板材１０の製造方法について説明する。
芯材１６の厚さ方向の両面に第１、第２のシート１２、１４を重ねる。
次に、第１、第２のシート１２、１４を熱により溶融し、圧着する。
そして、圧着の際に、溶融した第１、第２のシート１２、１４の部分を貫通部１６０２に流動させて貫通部１６０２に充填させ、貫通部１６０２に充填された充填部分２０を介して第１、第２のシート１２，１４を互いに溶着し芯材１６と一体化する。
このような製造方法により、超高分子量ポリエチレン製板材１０が簡単に確実に製造される。
本実施の形態では、第２のシート１４を、第１のシート１２を構成する超高分子量ポリエチレンと同一の超高分子量ポリエチレンで形成しているので、貫通部１６０２における第１、第２のシート１２、１４の溶着性を確保し、第１、第２のシート１２、１４の芯材１６との一体化を図る上で有利となっている。 Here, a method for producing the ultrahigh molecular weight polyethylene plate 10 will be described.
The first and second sheets 12 and 14 are stacked on both surfaces of the core material 16 in the thickness direction.
Next, the first and second sheets 12 and 14 are melted by heat and pressed.
Then, at the time of crimping, the melted portions of the first and second sheets 12 and 14 are caused to flow into the penetration portion 1602 to be filled in the penetration portion 1602, and the first through the filling portion 20 filled in the penetration portion 1602. The first and second sheets 12 and 14 are welded together and integrated with the core material 16.
By such a manufacturing method, the ultrahigh molecular weight polyethylene plate 10 is easily and reliably manufactured.
In the present embodiment, since the second sheet 14 is formed of the same ultra high molecular weight polyethylene as the ultra high molecular weight polyethylene constituting the first sheet 12, the first and second sheets in the penetrating portion 1602 are used. 12 and 14 are secured, and this is advantageous in integrating the first and second sheets 12 and 14 with the core 16.

第１の実施の形態の超高分子量ポリエチレン製板材１０によれば、第１、第２のシート１２、１４は、充填部分２０を介して互いに溶着され芯材１６と一体化されている。
また、芯材１６は塑性変形可能であるため、プレス加工やロール加工などの種々の機械的加工により、通常の金属板と同様に、超高分子量ポリエチレン製板材１０を所望の形状に加工することが可能となり、加工された所望の形状は、芯材１６により維持される。
したがって、超高分子量ポリエチレン製板材１０を、平坦な平板状、曲面状、円筒状、Ｌ字状、Ｖ字状など、あるいはそれら形状の組み合わせにより、所望の形状に加工することが可能となる。
そして、超高分子量ポリエチレン製板材１０から得られた所望の形状の部材、部品は、その肉厚方向の両面に、芯材１６と一体化された第１、第２のシート１２、１４が位置している。
すなわち、得られた部材、部品の肉厚方向の両面は、耐摩耗性に優れる超高分子量ポリエチレンシートとなっている。
したがって、各種装置、機械の耐摩耗箇所に使用される所望形状の超高分子量ポリエチレンシートからなる部材、部品を製造することが可能となり、従来製造することができなかった所望形状の超高分子量ポリエチレン製の部材、部品を製造することが可能となる。 According to the ultrahigh molecular weight polyethylene plate material 10 of the first embodiment, the first and second sheets 12 and 14 are welded to each other via the filling portion 20 and integrated with the core material 16.
Further, since the core material 16 can be plastically deformed, the ultrahigh molecular weight polyethylene plate material 10 is processed into a desired shape by various mechanical processing such as press processing and roll processing as in the case of a normal metal plate. Therefore, the processed desired shape is maintained by the core material 16.
Therefore, the ultrahigh molecular weight polyethylene plate 10 can be processed into a desired shape by a flat plate shape, curved surface shape, cylindrical shape, L shape, V shape, or a combination of these shapes.
The members and parts of a desired shape obtained from the ultrahigh molecular weight polyethylene plate 10 are positioned on both sides in the thickness direction, with the first and second sheets 12 and 14 integrated with the core 16 positioned. doing.
That is, both sides of the obtained member and parts in the thickness direction are ultrahigh molecular weight polyethylene sheets having excellent wear resistance.
Therefore, it becomes possible to manufacture members and parts made of ultrahigh molecular weight polyethylene sheets of desired shapes used in various parts and wear-resistant parts of machines, and ultrahigh molecular weight polyethylene of desired shapes that could not be produced conventionally. It becomes possible to manufacture manufactured members and parts.

なお、本実施の形態では、第１、第２のシート１２、１４に共に超高分子量ポリエチレンを用いた場合について説明したが、超高分子量ポリエチレン製板材１０から得られた部材、部品の肉厚方向の一方の面のみに耐摩耗性が要求される場合、その面に第１のシート１２を位置させ、第２のシート１４に、熱溶融した際に第１のシート１２に対して溶着可能で耐摩耗性のない合成樹脂を用いてもよい。 In the present embodiment, the case where ultrahigh molecular weight polyethylene is used for both the first and second sheets 12 and 14 has been described. However, the thickness of members and parts obtained from the ultrahigh molecular weight polyethylene sheet 10 is not particularly limited. When wear resistance is required only on one surface in the direction, the first sheet 12 is positioned on that surface and can be welded to the first sheet 12 when thermally melted on the second sheet 14. A synthetic resin having no wear resistance may be used.

次に、図２を参照して第２の実施の形態について説明する。
なお、以下の実施の形態の説明では、第１の実施の形態と同様な箇所、部材に同一の符号を付してその説明を省略する。
第２の実施の形態では、第１のシート１２の厚さＴ１が、第２のシート１４の厚さＴ２よりも大きい寸法で形成されている。
第２の実施の形態は、超高分子量ポリエチレン製板材１０から得られた部材、部品の肉厚方向の一方の面に要求される耐摩耗性に対応させ、第１のシート１２の厚さＴ１を決定したものである。
したがって、第１のシート１２の厚さＴ１を適宜決定することで、部材、部品に要求される耐摩耗性に対応することが可能となる。 Next, a second embodiment will be described with reference to FIG.
In the following description of the embodiment, the same reference numerals are assigned to the same parts and members as in the first embodiment, and the description thereof is omitted.
In the second embodiment, the thickness T1 of the first sheet 12 is formed to be larger than the thickness T2 of the second sheet 14.
In the second embodiment, the thickness T1 of the first sheet 12 is made to correspond to the wear resistance required for one surface in the thickness direction of the parts and parts obtained from the ultrahigh molecular weight polyethylene plate 10. Is determined.
Therefore, by appropriately determining the thickness T1 of the first sheet 12, it is possible to meet the wear resistance required for the members and parts.

次に、図３を参照して第３の実施の形態について説明する。
以下の実施の形態は、超高分子量ポリエチレン製板材１０から得られた耐摩耗性に優れる摺動部材１０Ａである。
第３の実施の形態で用いる超高分子量ポリエチレン製板材１０の芯材１６は、金属製板材で形成されている。
金属製板材は、複数の貫通部１６０２が形成された貫通領域部１６Ａと、貫通領域部１６Ａの両側に位置し取り付け孔（被取り付け部）１６０４が形成された取り付け領域部１６Ｂとを有している。
第１、第２のシート１２、１４は共に超高分子量ポリエチレンからなり貫通領域部１６Ａと同一の輪郭を有し、貫通領域部１６Ａを覆うように貫通領域部１６Ａの両面に配置され、熱溶着によりそれらシートの部分が貫通部１６０２に充填された充填部分２０を介して貫通領域部１６Ａと一体化されている。
摺動部材１０Ａは取り付け孔１６０４を介して取り付け領域部１６Ｂが装置や機械の適宜箇所に取着され、耐摩耗性に優れる超高分子量ポリエチレンからなる第１のシート１２の表面が摺動面として機能し、あるいは、耐摩耗性に優れる超高分子量ポリエチレンシートからなる第１、第２のシート１２、１４の双方の表面が摺動面として機能する。 Next, a third embodiment will be described with reference to FIG.
The following embodiment is a sliding member 10 </ b> A having excellent wear resistance obtained from the ultrahigh molecular weight polyethylene plate 10.
The core material 16 of the ultrahigh molecular weight polyethylene plate material 10 used in the third embodiment is formed of a metal plate material.
The metal plate member has a penetrating region portion 16A in which a plurality of penetrating portions 1602 are formed, and an attaching region portion 16B that is located on both sides of the penetrating region portion 16A and in which mounting holes (attached portions) 1604 are formed. Yes.
The first and second sheets 12 and 14 are both made of ultrahigh molecular weight polyethylene and have the same contour as the penetrating region portion 16A. The first and second sheets 12 and 14 are disposed on both sides of the penetrating region portion 16A so as to cover the penetrating region portion 16A, and are thermally welded. Accordingly, the sheet portions are integrated with the penetrating region portion 16 </ b> A through the filling portion 20 in which the penetrating portion 1602 is filled.
In the sliding member 10A, the attachment region 16B is attached to an appropriate part of the apparatus or machine via the attachment hole 1604, and the surface of the first sheet 12 made of ultrahigh molecular weight polyethylene having excellent wear resistance is used as the sliding surface. Both the surfaces of the first and second sheets 12 and 14 made of ultrahigh molecular weight polyethylene sheets that function or have excellent wear resistance function as sliding surfaces.

次に、図４を参照して第３の実施の形態について説明する。
第３の実施の形態で用いる超高分子量ポリエチレン製板材１０の第１、第２のシート１２、１４は、共に超高分子量ポリエチレンからなり、芯材１６は、金網またはパンチングメタルなどのような、全面に厚さ方向に貫通する複数の貫通部１６０２が形成された金属製板材で形成されている。
図４（Ａ）に示すように、平板状の超高分子量ポリエチレン製板材１０が、プレス加工、または、ロール加工により円筒状に加工されることで、円筒部１００２を有する摺動部材１０Ｂが形成され、符号１００４は超高分子量ポリエチレン製板材１０の端部の合わせ面を示す。
摺動部材１０Ｂは、円筒部１００２の内周面が、耐摩耗性に優れる超高分子量ポリエチレンからなる第１のシート１２で形成された滑り軸受け１０Ｂである。 Next, a third embodiment will be described with reference to FIG.
The first and second sheets 12 and 14 of the ultra-high molecular weight polyethylene plate 10 used in the third embodiment are both made of ultra-high molecular weight polyethylene, and the core 16 is made of a wire mesh or punching metal, It is formed of a metal plate material having a plurality of through portions 1602 penetrating in the thickness direction on the entire surface.
As shown in FIG. 4A, a flat member 10 made of ultrahigh molecular weight polyethylene is processed into a cylindrical shape by press processing or roll processing, whereby a sliding member 10B having a cylindrical portion 1002 is formed. Reference numeral 1004 indicates a mating surface at the end of the ultrahigh molecular weight polyethylene plate 10.
The sliding member 10B is a sliding bearing 10B in which the inner peripheral surface of the cylindrical portion 1002 is formed of a first sheet 12 made of ultrahigh molecular weight polyethylene having excellent wear resistance.

次に、図５を参照して第４の実施の形態について説明する。
第４の実施の形態は、第３の実施の形態の変形例である。
第３の実施の形態で用いる超高分子量ポリエチレン製板材１０の芯材１６は、弾性を有する金属製板材で、円筒部１００２の全域に、ローレット加工あるいはインデント加工を施すことにより、円筒部１００２の半径方向に弾性変形可能な凹凸１００６を設けた滑り軸受け１０Ｃとなっている。本実施の形態では、円筒部１００２の全域に、大径部１００２Ａと、大径部１００２Ａよりも直径の小さい小径部１００２Ｂとを軸方向に交互に並べて設けている。
このように、円筒部１００２に凹凸１００６を設けると、軸受孔に滑り軸受け１０Ｃを挿入し、滑り軸受け１０Ｃで軸を回転可能に支持する際に、締め代を凹凸１００６で吸収でき、軸受孔内のがたつきを防止する上で有利となる。
なお、凹凸１００６は、円筒部１００２の軸方向の一部の全周にのみ設けてもよく、あるいは、軸方向に間隔をおいた２箇所の全周のみに設けてもよいが、本実施の形態のように、凹凸１００６を円筒部１００２の全域に設けると、締め代を凹凸１００６で吸収し、軸受孔内のがたつきを防止する上でより有利となる。 Next, a fourth embodiment will be described with reference to FIG.
The fourth embodiment is a modification of the third embodiment.
The core material 16 of the ultrahigh molecular weight polyethylene plate material 10 used in the third embodiment is a metal plate material having elasticity, and the entire cylindrical portion 1002 is subjected to knurling or indenting to thereby form the cylindrical portion 1002. The sliding bearing 10C is provided with unevenness 1006 that can be elastically deformed in the radial direction. In this embodiment, large diameter portions 1002A and small diameter portions 1002B having a diameter smaller than that of the large diameter portion 1002A are provided alternately in the axial direction throughout the entire cylindrical portion 1002.
Thus, when the cylindrical portion 1002 is provided with the unevenness 1006, when the sliding bearing 10C is inserted into the bearing hole and the shaft is rotatably supported by the sliding bearing 10C, the tightening allowance can be absorbed by the unevenness 1006. This is advantageous in preventing rattling.
Note that the unevenness 1006 may be provided only on the entire circumference of a part of the cylindrical portion 1002 in the axial direction, or may be provided only on the entire circumference of two places spaced in the axial direction. When the unevenness 1006 is provided in the entire area of the cylindrical portion 1002 as in the form, the interference is absorbed by the unevenness 1006, which is more advantageous in preventing rattling in the bearing hole.

次に、図６を参照して第５の実施の形態について説明する。
第５の実施の形態は、第４の実施の形態の変形例であり、第５の実施の形態は、円筒部１００２の半径方向に弾性変形可能な凹凸１００６の構成が第４の実施の形態と異なっている。
第５の実施の形態の凹凸１００６は、円筒部１００２の軸方向に延在する凸部１００２Ｃと凹部１００２Ｄとが周方向に交互に並べられて構成されている。
このような第５の実施の形態の滑り軸受け１０Ｄによっても、軸受孔に滑り軸受け１０Ｃを挿入し、滑り軸受け１０Ｄで軸を回転可能に支持する際に、締め代を凹凸１００６で吸収でき、軸受孔内のがたつきを防止する上で有利となる。 Next, a fifth embodiment will be described with reference to FIG.
The fifth embodiment is a modification of the fourth embodiment. In the fifth embodiment, the configuration of the unevenness 1006 that can be elastically deformed in the radial direction of the cylindrical portion 1002 is the fourth embodiment. Is different.
The unevenness 1006 of the fifth embodiment is formed by alternately arranging convex portions 1002C and concave portions 1002D extending in the axial direction of the cylindrical portion 1002 in the circumferential direction.
Even with the sliding bearing 10D of the fifth embodiment as described above, when the sliding bearing 10C is inserted into the bearing hole and the shaft is rotatably supported by the sliding bearing 10D, the interference can be absorbed by the unevenness 1006. This is advantageous in preventing rattling in the hole.

次に、図７を参照して第６の実施の形態について説明する。
第６の実施の形態は、第３の実施の形態の変形例である。
第５の実施の形態は、第３の実施の形態の円筒部１００２に、プレス加工により鍔部１００８を設けたものであり、円筒部１００２の軸方向の位置決めに使用される鍔部１００８を有する滑り軸受け１０Ｅとなっている。
鍔部１００８は、円筒部１００２と反対に位置する面が第１のシート１２で形成され、円筒部１００２側に位置する面が第２のシート１４で形成されている。 Next, a sixth embodiment will be described with reference to FIG.
The sixth embodiment is a modification of the third embodiment.
In the fifth embodiment, the cylindrical portion 1002 of the third embodiment is provided with a flange portion 1008 by press working, and has a flange portion 1008 used for positioning the cylindrical portion 1002 in the axial direction. It is a sliding bearing 10E.
The flange portion 1008 is formed of the first sheet 12 on the surface opposite to the cylindrical portion 1002 and the second sheet 14 on the surface positioned on the cylindrical portion 1002 side.

次に、図８を参照して第７の実施の形態について説明する。
第７の実施の形態は、第６の実施の形態の変形例である。
第７の実施の形態の滑り軸受け１０Ｆは、第６の実施の形態の円筒部１００２に、円筒部１００２の半径方向に弾性変形可能な凹凸１００６を設けると共に、第６の実施の形態の鍔部１００８にプレス加工により、円筒部１００２の軸方向に弾性変形可能な凹凸１０１０を設けたものである。
円筒部１００２に設ける凹凸１００６は、例えば、図５に示すように、大径部１００２Ａと、大径部１００２Ａよりも直径の小さい小径部１００２Ｂとを軸方向に交互に並べて構成してもよく、図６に示すように、円筒部１００２の軸方向に延在する凸部１００２Ｃと凹部１００２Ｄとが周方向に交互に並べて構成してもよい。この実施の形態では、凹凸１００６を、円筒部１００２の軸方向に延在する凸部１００２Ｃと凹部１００２Ｄとを周方向に交互に並べて構成している。
また、鍔部１００８に設ける凹凸１０１０は、鍔部１００８の中心を通り鍔部１００８の直径方向に延在する凸部１００２Ｅと凹部１００２Ｆを鍔部１００８の周方向に並べて構成してもよく、あるいは、鍔部１００８の中心を中心とした環状の凸部と環状の凹部とを半径方向に交互に並べて構成してもよい。この実施の形態では、凹凸１０１０を、鍔部１００８の中心を通り鍔部１００８の直径方向に延在する凸部１００２Ｅと凹部１００２Ｆを鍔部１００８の周方向に並べて構成している。
第７の実施の形態の滑り軸受け１０Ｆによれば、滑り軸受け１０Ｆで軸を回転可能に支持する際に、締め代を凹凸１００６で吸収でき、軸受孔内のがたつきを防止する上で有利となり、また、鍔部１００８で円筒部１００２の軸方向の位置決めを行なうことは無論のこと、鍔部１００８の凹凸１０１０により滑り軸受け１０Ｆの軸方向のがたつきを吸収する上で有利となる。
なお、凹凸１０１０は、鍔部１００８の周方向に間隔をおいた複数箇所に設けてもよいが、本実施の形態のように、凹凸１０１０を鍔部１００８の全域に設けると、滑り軸受け１０Ｆの軸方向のがたつきを吸収する上でより有利となる。 Next, a seventh embodiment will be described with reference to FIG.
The seventh embodiment is a modification of the sixth embodiment.
In the sliding bearing 10F of the seventh embodiment, the cylindrical portion 1002 of the sixth embodiment is provided with irregularities 1006 that can be elastically deformed in the radial direction of the cylindrical portion 1002, and the flange portion of the sixth embodiment. An irregularity 1010 that can be elastically deformed in the axial direction of the cylindrical portion 1002 is provided by pressing 1008.
The unevenness 1006 provided in the cylindrical portion 1002 may be configured by alternately arranging large diameter portions 1002A and small diameter portions 1002B having a diameter smaller than the large diameter portions 1002A in the axial direction, as shown in FIG. As shown in FIG. 6, convex portions 1002C and concave portions 1002D extending in the axial direction of the cylindrical portion 1002 may be alternately arranged in the circumferential direction. In this embodiment, the irregularities 1006 are configured by alternately arranging convex portions 1002C and concave portions 1002D extending in the axial direction of the cylindrical portion 1002 in the circumferential direction.
Further, the unevenness 1010 provided on the flange portion 1008 may be configured by arranging a convex portion 1002E and a concave portion 1002F passing through the center of the flange portion 1008 and extending in the diameter direction of the flange portion 1008 in the circumferential direction of the flange portion 1008, or In addition, an annular convex portion and an annular concave portion centered on the center of the flange portion 1008 may be alternately arranged in the radial direction. In this embodiment, the projections and depressions 1010 are configured by arranging convex portions 1002E and concave portions 1002F that pass through the center of the flange portion 1008 and extend in the diameter direction of the flange portion 1008 in the circumferential direction of the flange portion 1008.
According to the sliding bearing 10F of the seventh embodiment, when the shaft is rotatably supported by the sliding bearing 10F, the interference can be absorbed by the irregularities 1006, which is advantageous in preventing rattling in the bearing hole. In addition, it goes without saying that the cylindrical portion 1002 is positioned in the axial direction by the flange portion 1008, and it is advantageous in absorbing the shakiness in the axial direction of the sliding bearing 10F by the unevenness 1010 of the flange portion 1008.
In addition, although the unevenness | corrugation 1010 may be provided in the several places spaced apart in the circumferential direction of the collar part 1008, when the unevenness | corrugation 1010 is provided in the whole region of the collar part 1008 like this Embodiment, the sliding bearing 10F of FIG. This is more advantageous in absorbing axial shakiness.

１０……超高分子量ポリエチレン製板材
１０Ａ……摺動部材
１０Ｂ、１０Ｃ……滑り軸受け
１００２……円筒部
１００４……合わせ面
１００６……凹凸
１００８……鍔部
１２……第１のシート
１４……第２のシート
１６……芯材
１６０２……貫通部
１６Ａ……貫通領域部
１６Ｂ……取り付け領域部
１６０４……取り付け孔
２０……貫通部に充填された充填部分 DESCRIPTION OF SYMBOLS 10 ... Ultra high molecular weight polyethylene board | plate material 10A ... Sliding member 10B, 10C ... Sliding bearing 1002 ... Cylindrical part 1004 ... Matching surface 1006 ... Concavity and convexity 1008 ... Gutter part 12 ... First sheet 14 ... ... second sheet 16 ... core material 1602 ... penetration part 16A ... penetration area part 16B ... attachment area part 1604 ... attachment hole 20 ... filled part filled in the penetration part

Claims

A plate-shaped core material, and first and second sheets disposed on both surfaces in the thickness direction of the core material,
The core material is made of a material having strength and rigidity higher than those of the first and second sheets and having a high melting point and is plastically deformable, and a plurality of through portions penetrating in the thickness direction are formed.
The first sheet is formed of ultra high molecular weight polyethylene having a molecular weight of 500,000 or more,
The second sheet is formed from a synthetic resin that can be welded to the first sheet when thermally melted,
The first and second sheets are sliding members made of an ultra-high molecular weight polyethylene plate material in which those portions are welded to each other via a filling portion filled in the penetrating portion and integrated with the core material. There,
The sliding member has a plate shape,
The core member has a penetrating region portion in which the plurality of penetrating portions are formed, and an attaching region portion connected to both sides of the penetrating region portion to form a plurality of attaching holes ,
The first and second sheets have the same outline as the penetrating region portion and are disposed on both sides of the penetrating region portion so as to cover the penetrating region portion.
A sliding member characterized by that.

A plate-shaped core material, and first and second sheets disposed on both surfaces in the thickness direction of the core material,
The core material is made of a material having strength and rigidity higher than those of the first and second sheets and having a high melting point and is plastically deformable, and a plurality of through portions penetrating in the thickness direction are formed.
The first sheet is formed of ultra high molecular weight polyethylene having a molecular weight of 500,000 or more,
The second sheet is formed from a synthetic resin that can be welded to the first sheet when thermally melted,
The first and second sheets are sliding members made of an ultra-high molecular weight polyethylene plate material in which those portions are welded to each other via a filling portion filled in the penetrating portion and integrated with the core material. There,
The sliding member includes a cylindrical portion constituting a sliding bearing ,
Concavities and convexities that are elastically deformable in the radial direction of the cylindrical portion are formed on the entire circumference of at least a part of the cylindrical portion in the axial direction.
A sliding member characterized by that.

The unevenness is configured by alternately arranging a large diameter portion and a small diameter portion having a diameter smaller than the large diameter portion in the axial direction of the cylindrical portion.
The sliding member according to claim 2.

The concave and convex portions are configured by alternately arranging convex portions and concave portions extending in the axial direction of the cylindrical portion in the circumferential direction of the cylindrical portion.
The sliding member according to claim 2.

The sliding member is further provided with a flange portion provided at an end portion in the axial direction of the cylindrical portion and expanding in an annular plate shape ,
Convex and concave portions that are elastically deformable in the axial direction of the cylindrical portion are provided at a plurality of positions spaced at least in the circumferential direction of the flange portion,
The sliding member according to any one of claims 2 to 4, characterized in that:

The concave and convex portions are configured by alternately arranging convex portions and concave portions extending in the diameter direction of the collar portion through the center of the collar portion in the circumferential direction of the collar portion,
The sliding member according to claim 5, wherein:

The concave and convex portions are configured by alternately arranging annular convex portions and annular concave portions around the center of the flange portion in the radial direction of the flange portion,
The sliding member according to claim 5, wherein:

The second sheet is formed of the same ultra high molecular weight polyethylene as the first sheet.
The sliding member according to claim 1, wherein:

The core material is formed of a metal material,
The sliding member according to claim 1, wherein:

The thickness of the first sheet is formed with a dimension larger than the thickness of the second sheet,
The sliding member according to claim 1, wherein: