JP4061939B2

JP4061939B2 - Multi-layer plain bearing and manufacturing method thereof

Info

Publication number: JP4061939B2
Application number: JP2002086417A
Authority: JP
Inventors: 正行小濱; 秀幸橋本; 雅生志村; 秀樹沼澤; 一紀宮本
Original assignee: Oiles Corp
Current assignee: Oiles Corp
Priority date: 2002-03-26
Filing date: 2002-03-26
Publication date: 2008-03-19
Anticipated expiration: 2022-03-26
Also published as: JP2003278760A

Description

【０００１】
【発明の属する技術分野】
本発明は、比較的厚肉の複層滑り軸受、特にローラを用いた転がり軸受に代用できる複層滑り軸受及びその製造方法に関する。
【０００２】
【発明が解決しようとする課題】
軸受には、通常、転がり軸受と滑り軸受とが存在するが、転がり軸受は、摩擦抵抗が極めて低くてエネルギ損失が少ない等の利点を有している反面、比較的高価である上に必然的に転がり音を発生するという欠点を有しており、一方、滑り軸受は、摩擦抵抗の低さについては精度よく設計された転がり軸受に及ばないものの、比較的低価格である上に滑り音は発生するが転がり軸受に比較すれば音の発生は少なく低音性に優れているという利点を有しており、斯かる利点から滑り軸受は多くの分野で利用されている。
【０００３】
滑り軸受としては、薄鋼板と、この薄鋼板の一方の面に一体に被着された多孔質焼結金属層と、この薄鋼板の一方の面に一体に被着された滑り層とを具備した短冊状の複層板を円筒状に巻いた所謂巻きブッシュが知られているが、斯かる巻きブッシュには、当然、円筒状に巻いた複層板の両端面に突き合わせ部が生じることになる。
【０００４】
ところで、転がり軸受に代えて滑り軸受を用いる場合であって、滑り軸受に対して転がり軸受と同等の径方向の厚みが要求される場合、斯かる比較的大きな径方向の厚みをもった巻きブッシュを製作するには、厚肉の複層板を円筒状に巻くことになるために、複層板の両端面を精度よく突き合わせることが困難であって突き合わせ部に大きな段差が生じる虞がある上に、突き合わせ部の外周側には内周側と比較して必然的に大きな隙間が生じる。斯かる段差及び隙間は、当然、支持される回転軸等の滑らかな回転を阻害することになる。
【０００５】
本発明は、前記諸点に鑑みてなされたものであって、その目的とするところは、巻きブッシュのような突き合わせ部もなく、したがって厚肉の転がり軸受に代えて使用できて、支持する回転軸等を滑らかに回転させることができる複層滑り軸受及びその製造方法を提供することにある。
【０００６】
【課題を解決するための手段】
本発明の第一の態様の複層滑り軸受は、金属板を二つ折りに折り曲げてなると共に径方向において互いに重合する内周側円筒部及び外周側円筒部を一体的に有した補強体と、網状体及びこの網状体の網目に一部が配され且つ当該網状体の少なくとも一方の面に一体に被着されている合成樹脂製の滑り層を有した複層板を径方向の最内周側及び最外周側に滑り層が位置するように二つ折りに折り曲げてなると共に径方向において互いに重合する内周側円筒部及び外周側円筒部を一体的に有した複層滑り軸受体とを具備しており、ここで、複層滑り軸受体の内周側円筒部と外周側円筒部との間に、補強体の内周側円筒部又は外周側円筒部が嵌装されており、複層滑り軸受体の外周側円筒部の径方向の外周面又は内周側円筒部の径方向の内周面に、補強体の外周側円筒部又は内周側円筒部が接触して配されている。
【０００７】
第一の態様の複層滑り軸受では、複層板を径方向の最外周側及び最内周側に滑り層が位置するように二つ折りに折り曲げてなると共に径方向において互いに重合する内周側円筒部及び外周側円筒部を一体的に有した複層滑り軸受体を具備しているために、巻きブッシュのような突き合わせ部もなく、したがって、厚肉にしても突き合わせ部に起因する問題が生じなく、厚肉の転がり軸受に代えて使用できて、支持する回転軸等を滑らかに回転させることができ、しかも、複層滑り軸受体を補強体でもって補強しているために、薄い内周側円筒部及び外周側円筒部をもった複層滑り軸受体を使用しても複層滑り軸受体の軸受面をしっかりと保持できる上に、ローラを用いた転がり軸受に好ましく代用できる。
【０００８】
本発明の複層滑り軸受においては、複層滑り軸受体の内周側円筒部が径方向の最内周側に、その径方向外側に補強体の内周側円筒部が、更にその径方向外側に複層滑り軸受体の外周側円筒部が、そして径方向の最外周側に補強体の外周側円筒部が夫々配されていても、これに代えて、補強体の内周側円筒部が径方向の最内周側に、その径方向外側に複層滑り軸受体の内周側円筒部が、更にその径方向外側に補強体の外周側円筒部が、そして径方向の最外周側に複層滑り軸受体の外周側円筒部が夫々配されていてもよく、前者の複層滑り軸受では、複層滑り軸受体の内周側円筒部の内周面により軸を回転自在に支持することになり、後者の複層滑り軸受では、複層滑り軸受体の外周側円筒部の外周面により軸を回転自在に支持することになる。
【０００９】
本発明の第二の態様の複層滑り軸受では、第一の態様の複層滑り軸受において、複層滑り軸受体の内周側円筒部と外周側円筒部との間に、当該内周側円筒部の外周面と当該外周側円筒部の内周面とに接触して補強体の内周側円筒部又は外周側円筒部が嵌装されている。
【００１０】
本発明の複層滑り軸受において、網状体は、好ましくはその第三の態様の複層滑り軸受のように、エキスパンドメタル、金属細線を編んだり織ったりして形成された金網又は多孔板からなる。なお、多孔板としては、特開２００１−１４０８９２号公報に記載されているような、多数の孔が形成されていると共に少なくとも一方の面には、面外方向に突出すると共に孔の一端を取り囲んだ環状の突出部が一体的に形成されている多孔金属シートを用いてもよく、また、斯かる多孔金属シートを用いた同公報に記載の複層摺動部材を本発明における複層板に用いてもよい。
【００１１】
本発明の複層滑り軸受において、エキスパンドメタル及び多孔板の形成材料としては、ステンレス鋼板（ＳＵＳ）、冷間圧延鋼板（ＳＰＣＣ）、電気亜鉛めっき鋼板（ＳＥＣＣ）、黄銅又はアルミニウムからなる金属シートが好ましいが、本発明はこれらに限定されず、その他の金属シートからなっていてもよく、また、金属細線としては、鉄系としてオーステナイト系のＳＵＳ３０４若しくはＳＵＳ３１６又はフェライト系のＳＵＳ４３０等のステンレス鋼線又は鉄線（ＪＩＳ−Ｇ−３５３２）若しくは亜鉛メッキ鉄線（ＪＩＳ−Ｇ−３５４７）、また銅系として銅−ニッケル合金（白銅）、銅−ニッケル−亜鉛合金（洋白）、黄銅、ベリリウム銅からなる線径０．１０〜０．３２ｍｍ程度の細線材を好ましい例として挙げることができ、金網は、これら金属細線の１本又は２本以上を使用して織ったり、編んだりして形成された網目３〜６ｍｍ程度のものを好ましい例として挙げることができる。なお、金網を具備した複層板を形成する場合には、板状に圧縮した金網に対して滑り層を形成するとよい。
【００１２】
本発明の複層滑り軸受において、滑り層の形成材料である合成樹脂としては、ポリテトラフルオロエチレン樹脂、ポリイミド樹脂などの充填材を含むポリテトラフルオロエチレン樹脂又はポリアセタール樹脂あるいは潤滑油剤を含有する含油ポリアセタール樹脂などを好ましい例として挙げることができるが、その他、網状体に対するなじみ性及び用途等との関連で公知のものを用いることができる。
【００１３】
本発明の複層滑り軸受において、補強体の金属板としては、冷間圧延鋼板（ＳＰＣＣ：ＪＩＳＧ４１４１）、一般構造用圧延鋼板（ＳＳ：ＪＩＳＧ３１０１）などを用いて好適である。
【００１４】
例えば、内径３５ｍｍ、軸方向長７ｍｍの本発明の複層滑り軸受の一例では、補強体の金属板として厚み１．５ｍｍの冷間圧延鋼板を用い、複層板として厚み０．５ｍｍの特開２００１−１４０８９２号公報に記載された複層摺動部材を用いるとよい。
【００１５】
本発明の第一の態様の複層滑り軸受の製造方法は、無端円環状の金属板の内周部を折り曲げて、円筒部とこの円筒部と一体であって円筒部に対して３０°から９０°の範囲の角度をもって径方向に伸長した鍔部とを有した補強体素体を形成し、網状体及びこの網状体の網目に一部が配され且つ当該網状体の少なくとも一方の面に一体に被着されている合成樹脂製の滑り層を有した複層板を径方向の最内周側及び最外周側に滑り層が位置するように二つ折りに折り曲げてなると共に径方向において互いに重合する内周側円筒部及び外周側円筒部を一体的に有した複層滑り軸受体を形成し、複層滑り軸受体の内周側円筒部と外周側円筒部との間に補強体素体の円筒部を嵌装し、補強体素体の鍔部を複層滑り軸受体の内周側円筒部の内側又は外周側円筒部の外側に折り曲げて、鍔部からなる内周側円筒部又は外周側円筒部を複層滑り軸受体の内周側円筒部の径方向の内周面又は外周側円筒部の径方向の外周面に接触させて、無端円環状の金属板を二つ折りに折り曲げてなると共に径方向において互いに重合する、鍔部又は円筒部からなる内周側円筒部と円筒部又は鍔部からなる外周側円筒部とを一体的に有した補強体を形成することを含んでいる。
【００１６】
第一の態様の複層滑り軸受の製造方法によれば、巻きブッシュのような突き合わせ部もなく、したがって厚肉の転がり軸受に代えて使用できて、支持する回転軸等を滑らかに回転させることができる上記の複層滑り軸受を製造し得る上に、複層滑り軸受体の内周側円筒部と外周側円筒部との間に補強体素体の円筒部を嵌装し、補強体素体の鍔部を複層滑り軸受体の内周側円筒部の内側又は外周側円筒部の外側に折り曲げて補強体を形成するために、複層滑り軸受体と補強体とが互いにしっかりと結合した複層滑り軸受を製造し得る。
【００１７】
本発明の第一の態様の複層滑り軸受の製造方法では、その第二の態様の複層滑り軸受の製造方法のように、円板状の複層板から複層滑り軸受体を形成してもよく、この場合、その第三の態様の複層滑り軸受の製造方法のように、円板状の複層板に深絞り成形を施して円板状の底部とこの底部に一体であって内周面側に滑り層が配された円筒部とこの円筒部に一体であって円筒部の滑り層に連続な滑り層を有した鍔部とからなる複層滑り軸受体素体を形成し、この複層滑り軸受体素体から複層滑り軸受体を形成してもよく、更にこの場合、その第四の態様の複層滑り軸受の製造方法のように、複層滑り軸受体素体の底部を除去し、複層滑り軸受体素体の鍔部を当該鍔部の滑り層が外周側に位置すると共に当該鍔部が複層滑り軸受体素体の円筒部に径方向において重なり合うように折り曲げて、複層滑り軸受体素体の鍔部からなる外周側円筒部と複層滑り軸受体素体の円筒部からなる内周側円筒部とを有した複層滑り軸受体を形成してもよい。
【００１８】
本発明の第一の態様の複層滑り軸受の製造方法では、その第五の態様の複層滑り軸受の製造方法のように、内周面側に滑り層が配された円筒部とこの円筒部に一体であって円筒部の滑り層に連続な滑り層を有した鍔部とからなる複層滑り軸受体素体を形成し、この複層滑り軸受体素体から複層滑り軸受体を形成してもよく、この場合には、その第六の態様の複層滑り軸受の製造方法のように、複層滑り軸受体素体の鍔部を当該鍔部の滑り層が外周側に位置すると共に当該鍔部が複層滑り軸受体素体の円筒部に径方向において重なり合うように折り曲げて、複層滑り軸受体素体の円筒部からなる内周側円筒部と複層滑り軸受体素体の鍔部からなる外周側円筒部を有した複層滑り軸受体を形成してもよい。
【００１９】
また第一の態様の複層滑り軸受の製造方法では、本発明の第七の態様の複層滑り軸受の製造方法のように、網状体とこの網状体の網目に一部が配され且つ当該網状体の一方の面に一体に被着されている滑り層とを有した複層板から内周面側に滑り層が配された円筒部とこの円筒部に一体であって円筒部の滑り層に連続な滑り層を有した鍔部とからなる複層滑り軸受体素体を形成し、この複層滑り軸受体素体から複層滑り軸受体を形成してもよく、この場合には、その第八の態様の複層滑り軸受の製造方法のように、複層滑り軸受体素体の鍔部を当該鍔部の滑り層が外周側に位置すると共に当該鍔部が複層滑り軸受体素体の円筒部に径方向において重なり合うように折り曲げて、複層滑り軸受体素体の円筒部からなる内周側円筒部と複層滑り軸受体素体の鍔部からなる外周側円筒部とを有した複層滑り軸受体を形成してもよい。
【００２０】
複層滑り軸受体素体をドロー成形、すなわち深絞り成形により形成すると、極めて寸法精度のよい複層滑り軸受体素体を得ることができる。
【００２１】
上記のいずれかの態様の製造方法において、網状体として、エキスパンドメタル、金属細線を編んだり織ったりして形成された金網又は多孔板を用いるとよい。
【００２２】
次に本発明及びその実施の形態を、図に示す好ましい例を参照して更に詳細に説明する。なお、本発明はこの例に何等限定されないのである。
【００２３】
【発明の実施の形態】
図１において、本例の無端環状の複層滑り軸受１は、冷間圧延鋼板（ＳＰＣＣ：ＪＩＳＧ４１４１）のような金属板を二つ折りに折り曲げてなると共に径方向において互いに重合する内周側円筒部２及び外周側円筒部３並びに断面Ｕ字状の連結部４を一体的に有した補強体５と、ステンレス鋼板（ＳＵＳ）製の多孔板等からなる網状体６及び網状体６の貫通孔からなる網目７に一部が配され且つ当該網状体６の一方の面８に一体に被着されている充填材として鉛を含むポリテトラフルオロエチレン樹脂等の合成樹脂製の滑り層９を有した複層板１０を径方向の最内周側及び最外周側に滑り層９が位置するように二つ折りに折り曲げてなると共に径方向において互いに重合する内周側円筒部１１及び外周側円筒部１２並びに断面Ｕ字状の連結部１３を一体的に有した複層滑り軸受体１４とを具備している。
【００２４】
複層滑り軸受１では、複層滑り軸受体１４の内周側円筒部１１と外周側円筒部１２との間に、補強体５の内周側円筒部２又は外周側円筒部３、本例では内周側円筒部２が嵌装されており、複層滑り軸受体１４の外周側円筒部１２の径方向の外周面２１又は内周側円筒部１１の径方向の内周面２２、本例では外周側円筒部１２の径方向の外周面２１に、補強体５の外周側円筒部３又は内周側円筒部２、本例では外周側円筒部３が接触して配されている。
【００２５】
また、複層滑り軸受１では、複層滑り軸受体１４の内周側円筒部１１と外周側円筒部１２との間に、当該内周側円筒１１の外周面２３と外周側円筒部１２の内周面２４とに接触して補強体５の内周側円筒部２又は外周側円筒部３、本例では内周側円筒部２が嵌装されている。
【００２６】
斯かる複層滑り軸受１は、例えば、外周側円筒部３が図示しない支持部材に固定される一方、内周面２２で規定される孔２５に挿通されて当該内周面２２に摺動自在に接触する回転軸を回転自在に支持するように用いられる。
【００２７】
複層滑り軸受１によれば、複層板１０を径方向の最外周側及び最内周側に滑り層９が位置するように二つ折りに折り曲げてなると共に径方向において互いに重合する内周側円筒部１１及び外周側円筒部１２を一体的に有した複層滑り軸受体１４を具備しているために、巻きブッシュのような突き合わせ部もなく、したがって、厚肉にしても突き合わせ部に起因する問題が生じなく、厚肉の転がり軸受に代えて使用できて、支持する回転軸等を滑らかに回転させることができ、しかも、複層滑り軸受体１４を補強体５でもって補強しているために、薄い内周側円筒部１１及び外周側円筒部１２をもった複層滑り軸受体１４を使用しても複層滑り軸受体１４の軸受面である内周面２２をしっかりと保持できる上に、ローラを用いた転がり軸受に好ましく代用できる。
【００２８】
上記の複層滑り軸受１は次のようにして製造される。まず、冷間圧延鋼板のような金属板から図２及び図３に示すような無端円環状の金属板３１を形成し、金属板３１の内周部３２をプレス等で折り曲げて、図４に示すような円筒部３３と円筒部３３と一体であって円筒部３３に対して３０°から９０°の範囲、本例では７５°の角度αをもって径方向に伸長した鍔部３４とを有した補強体素体３５を形成する。
【００２９】
また、ステンレス鋼板（ＳＵＳ）製の多孔板からなる網状体６及び網状体６の貫通孔である網目７に一部が配され且つ当該網状体６の一方の面８に一体に被着されている充填材として鉛を含むポリテトラフルオロエチレン樹脂等の合成樹脂製の滑り層９を有した特開２００１−１４０８９２号公報に記載のような図５及び図６に示す複層板１０であって図７及び図８に示すようにプレス等により円板状に切断された複層板１０を準備する。
【００３０】
次に図７及び図８に示す円板状の複層板１０に深絞り成形を施して図９に示すように円板状の底部４１と底部４１に一体であって内周面側に滑り層９が配された円筒部４２と円筒部４２に一体であって円筒部４２の滑り層９に連続な滑り層９を有した鍔部４３とからなる複層滑り軸受体素体４４を形成する。次に、複層滑り軸受体素体４４の底部４１を図１０に示すようにプレス等により剪断除去し、複層滑り軸受体素体４４の鍔部４３を当該鍔部４３の滑り層９が外周側に位置すると共に当該鍔部４３が複層滑り軸受体素体４４の円筒部４２に径方向において重なり合い且つ径方向の最内周側及び最外周側に滑り層９が位置するようにプレス等により二つ折りに折り曲げてしかも絞り成形を施して、図１１に示すように径方向において互いに重合すると共に、複層滑り軸受体素体４４の鍔部４３からなる外周側円筒部１２と複層滑り軸受体素体４４の円筒部４２からなる内周側円筒部１１と、内周側円筒部１１及び外周側円筒部１２の夫々に連結した曲げ部である連結部１３とを一体的に有した複層滑り軸受体１４を形成する。
【００３１】
また、図１２に示すような上基台５０に取り付けられていると共に円錐凹面５１及び中央円孔５２を有する上型５３と、円錐凹面５１に相補的な形状の円錐凸面５４、中央小径円孔５５及び中央小径円孔５５と同心な中央大径円孔５６を有する下型５７と、下基台５８に取り付けられていると共に下型５７の中央大径円孔５６に配されており且つ小径円柱部５９及び大径円柱部６０を一体に有した心金６１と、下基台５８に取り付けられていると共に下型５７の上下動を案内する案内ロッド６２と、下型５７を下基台５８上で弾性的に支持する弾性部材６３とを具備したプレス装置６４を準備し、同じく図１２に示すように中央小径円孔５５に複層滑り軸受体１４を嵌装すると共に複層滑り軸受体１４上に補強体素体３５を配置し、その後、上型５３を下降させて、図１３に示すように複層滑り軸受体１４の内周側円筒部１１と外周側円筒部１２との間に補強体素体３５の円筒部３３を圧入して嵌装すると共に円筒部３３に対して７５°の角度αをもって径方向に伸長した鍔部３４を円錐凹面５１と円錐凸面５４とにより円筒部３３に対して４０°の角度αをもって径方向に伸長するようにする。
【００３２】
その後、一体になった補強体素体３５と複層滑り軸受体１４との組み合わせ体７１をプレス装置６４から取り外して、次に、図１４に示す取り外した組み合わせ体７１において、補強体素体３５の鍔部３４に深絞り成形を施しつつ当該鍔部３４をプレスして複層滑り軸受体１４の内周側円筒部１１の内側又は外周側円筒部１２の外側、本例では外周側円筒部１２の外側に折り曲げて、鍔部３４からなる内周側円筒部２又は外周側円筒部３、本例では外周側円筒部３を複層滑り軸受体１４の内周側円筒部１１の径方向の内周面２２又は外周側円筒部１２の径方向の外周面２１、本例では外周側円筒部１２の外周面２１に接触させて、その後、内周側円筒部１１の軸方向の一方の端面側にプレス等を施して当該内周側円筒部１１の軸方向の一方の端面側を拡径してこれを補強体５の連結部４に密着させ、こうして図１に示すような複層滑り軸受１を形成する。
【００３３】
以上のような複層滑り軸受１の製造方法によれば、巻きブッシュのような突き合わせ部もなく、したがって厚肉の転がり軸受に代えて使用できて、支持する回転軸等を滑らかに回転させることができる複層滑り軸受１を製造し得る上に、複層滑り軸受体１４の内周側円筒部１１と外周側円筒部１２との間に補強体素体３５の円筒部３３を嵌装し、補強体素体３５の鍔部３４を複層滑り軸受体１４の外周側円筒部１２の外側に折り曲げて補強体５を形成するために、複層滑り軸受体１４と補強体５とが互いにしっかりと結合した複層滑り軸受１を製造し得、加えて、複層滑り軸受体素体４４をドロー成形、すなわち深絞り成形により形成するために、極めて寸法精度のよい複層滑り軸受体素体４４を得ることができる。
【００３４】
【発明の効果】
本発明によれば、巻きブッシュのような突き合わせ部もなく、したがって厚肉の転がり軸受に代えて使用できて、支持する回転軸等を滑らかに回転させることができる複層滑り軸受及びその製造方法を提供することができる。
【図面の簡単な説明】
【図１】本発明の好ましい実施の形態の例の縦断面図である。
【図２】図１に示す例の製造方法の説明図である。
【図３】図１に示す例の製造方法の説明図であって、図２に示すＩＩＩ−ＩＩＩ線矢視断面図である。
【図４】図１に示す例の製造方法の説明図である。
【図５】図１に示す例の製造方法の説明図である。
【図６】図１に示す例の製造方法の説明図であって、図５に示すＶＩ−ＶＩ線矢視断面図である。
【図７】図１に示す例の製造方法の説明図である。
【図８】図１に示す例の製造方法の説明図であって、図７に示すＶＩＩＩ−ＶＩＩＩ線矢視断面図である。
【図９】図１に示す例の製造方法の説明図である。
【図１０】図１に示す例の製造方法の説明図である。
【図１１】図１に示す例の製造方法の説明図である。
【図１２】図１に示す例の製造方法の説明図である。
【図１３】図１に示す例の製造方法の説明図である。
【図１４】図１に示す例の製造方法の説明図である。
【符号の説明】
１複層滑り軸受
２、１１内周側円筒部
３、１２外周側円筒部
５補強体
６網状体
７網目
８面
９滑り層
１０複層板
１４複層滑り軸受体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a relatively thick multilayer sliding bearing, and more particularly to a multilayer sliding bearing that can be used in place of a rolling bearing using a roller, and a method of manufacturing the same.
[0002]
[Problems to be solved by the invention]
Rolling bearings and sliding bearings usually exist as bearings. Rolling bearings have advantages such as extremely low frictional resistance and low energy loss, but are relatively expensive and inevitably. On the other hand, sliding bearings are less expensive than rolling bearings designed with high precision in terms of low frictional resistance, but they are relatively inexpensive and have no sliding noise. Although it is generated, it has the advantage that it produces less sound and is excellent in low sound performance compared with a rolling bearing, and sliding bearings are used in many fields because of such advantages.
[0003]
The sliding bearing includes a thin steel plate, a porous sintered metal layer integrally attached to one surface of the thin steel plate, and a sliding layer integrally attached to one surface of the thin steel plate. A so-called wound bush is known in which a strip-shaped multilayer board is wound in a cylindrical shape. Naturally, in such a wound bush, butted portions are formed on both end faces of the multilayered board wound in a cylindrical shape. Become.
[0004]
By the way, when a sliding bearing is used instead of the rolling bearing, and the radial bearing is required to have the same radial thickness as the rolling bearing, the winding bush having such a relatively large radial thickness is used. In order to manufacture the multilayer board, a thick multilayer board is wound into a cylindrical shape, so that it is difficult to accurately abut both end faces of the multilayer board, and there is a possibility that a large step is generated at the abutting portion. Moreover, a larger gap is inevitably generated on the outer peripheral side of the abutting portion than on the inner peripheral side. Such a step and gap naturally obstruct smooth rotation of the supported rotating shaft or the like.
[0005]
The present invention has been made in view of the above points, and its object is to provide a rotating shaft that supports and supports a thick rolling bearing without a butt portion such as a winding bush. It is an object of the present invention to provide a multi-layer plain bearing capable of smoothly rotating the same and a method for manufacturing the same.
[0006]
[Means for Solving the Problems]
The multi-layer plain bearing of the first aspect of the present invention is a reinforcing body integrally formed by folding a metal plate in two and overlapping with each other in the radial direction and an inner circumferential cylindrical portion and an outer circumferential cylindrical portion. A radially innermost peripheral plate having a mesh body and a synthetic resin sliding layer partially disposed on the mesh body and integrally attached to at least one surface of the mesh body A multi-layer sliding bearing body integrally formed with an inner circumferential side cylindrical portion and an outer circumferential side cylindrical portion that are folded in half so that the sliding layer is positioned on the side and the outermost circumferential side and that are superposed on each other in the radial direction Here, the inner circumferential side cylindrical portion or the outer circumferential side cylindrical portion of the reinforcing body is fitted between the inner circumferential side cylindrical portion and the outer circumferential side cylindrical portion of the multilayer sliding bearing body. On the outer peripheral surface in the radial direction of the outer cylindrical portion of the sliding bearing body or the inner peripheral surface in the radial direction of the inner cylindrical portion, The outer peripheral side cylindrical portion or the inner peripheral side cylindrical portion of the strength member is disposed in contact.
[0007]
In the multilayer sliding bearing of the first aspect, the multilayer plate is folded in half so that the sliding layer is located on the radially outermost side and the innermost circumferential side, and the inner circumferential side overlaps with each other in the radial direction. Since the multi-layer sliding bearing body integrally having the cylindrical portion and the outer peripheral side cylindrical portion is provided, there is no butt portion such as a wound bush, and therefore there is a problem caused by the butt portion even if it is thick. It can be used in place of a thick-walled rolling bearing, and the rotating shaft to be supported can be smoothly rotated, and the multi-layered sliding bearing body is reinforced with a reinforcing body. Even when a multi-layer sliding bearing body having a peripheral cylindrical portion and an outer cylindrical portion is used, the bearing surface of the multi-layer sliding bearing body can be firmly held and can be preferably substituted for a rolling bearing using a roller.
[0008]
In the multi-layer slide bearing of the present invention, the inner peripheral side cylindrical portion of the multi-layer slide bearing body is on the innermost peripheral side in the radial direction, and the inner peripheral side cylindrical portion of the reinforcing body is further on the outer side in the radial direction. Even if the outer peripheral side cylindrical portion of the multilayer plain bearing body is arranged on the outer side and the outer peripheral side cylindrical portion of the reinforcing body is arranged on the outermost peripheral side in the radial direction, the inner peripheral side cylindrical portion of the reinforcing body is replaced with this. Is on the radially innermost side, on the radially outer side is the inner circumferential cylindrical part of the multi-layer sliding bearing body, on the radially outer side is the outer circumferential side cylindrical part of the reinforcing body, and on the radially outermost side. The outer peripheral side cylindrical portion of the multilayer sliding bearing body may be arranged respectively. In the former multilayer sliding bearing, the shaft is rotatably supported by the inner peripheral surface of the inner peripheral side cylindrical portion of the multilayer sliding bearing body. Therefore, in the latter multilayer sliding bearing, the shaft is rotatably supported by the outer peripheral surface of the outer cylindrical portion of the multilayer sliding bearing body.
[0009]
In the multilayer sliding bearing of the second aspect of the present invention, in the multilayer sliding bearing of the first aspect, the inner circumferential side between the inner circumferential side cylindrical portion and the outer circumferential side cylindrical portion of the multilayer sliding bearing body. The inner peripheral side cylindrical portion or the outer peripheral side cylindrical portion of the reinforcing body is fitted in contact with the outer peripheral surface of the cylindrical portion and the inner peripheral surface of the outer peripheral side cylindrical portion.
[0010]
In the multilayer sliding bearing of the present invention, the mesh body is preferably composed of a metal mesh or a perforated plate formed by knitting or weaving expanded metal, fine metal wires, like the multilayer sliding bearing of the third aspect. . In addition, as a perforated plate, many holes as described in JP-A-2001-140892 are formed, and at least one surface protrudes in the out-of-plane direction and surrounds one end of the hole. A perforated metal sheet in which an annular protrusion is integrally formed may be used, and the multilayer sliding member described in the publication using the perforated metal sheet is used as the multilayer plate in the present invention. It may be used.
[0011]
In the multi-layer sliding bearing of the present invention, the expanded metal and the perforated plate are formed of a stainless steel plate (SUS), a cold rolled steel plate (SPCC), an electrogalvanized steel plate (SECC), a metal sheet made of brass or aluminum. Although the present invention is not limited to these, the present invention may be made of other metal sheets, and the fine metal wire may be a stainless steel wire such as austenitic SUS304 or SUS316 or ferritic SUS430 as an iron-based material, or Wire made of iron wire (JIS-G-3532) or galvanized iron wire (JIS-G-3547), copper-nickel alloy (white copper), copper-nickel-zinc alloy (white), brass, beryllium copper A thin wire material having a diameter of about 0.10 to 0.32 mm can be cited as a preferred example, Nets, mention may be made of one or or woven using two or more, about mesh 3~6mm formed by braided these fine metal wires as preferable examples. In addition, when forming the multilayer board provided with the metal mesh, it is good to form a sliding layer with respect to the metal mesh compressed into plate shape.
[0012]
In the multi-layer sliding bearing of the present invention, the synthetic resin that is a material for forming the sliding layer is an oil-containing material containing a polytetrafluoroethylene resin or a polyacetal resin containing a filler such as polytetrafluoroethylene resin or polyimide resin, or a lubricant. Polyacetal resins and the like can be mentioned as preferred examples, but other known ones can be used in relation to compatibility with the network and usage.
[0013]
In the multilayer plain bearing of the present invention, a cold rolled steel plate (SPCC: JISG4141), a general structural rolled steel plate (SS: JISG3101), or the like is suitable as the metal plate of the reinforcing body.
[0014]
For example, in an example of a multilayer sliding bearing of the present invention having an inner diameter of 35 mm and an axial length of 7 mm, a cold rolled steel sheet having a thickness of 1.5 mm is used as the metal plate of the reinforcing body, and a thickness of 0.5 mm is used as the multilayer plate. A multilayer sliding member described in 2001-140892 may be used.
[0015]
According to the first aspect of the present invention, there is provided a method for manufacturing a multi-layer sliding bearing, wherein an inner peripheral portion of an endless annular metal plate is bent, and the cylindrical portion and the cylindrical portion are integrated with each other from 30 ° to the cylindrical portion. Forming a reinforcing element body having a flange extending in the radial direction at an angle in a range of 90 °, a part of the mesh body and a mesh of the mesh body being disposed on at least one surface of the mesh body A multilayer board having a synthetic resin sliding layer deposited integrally is folded in two so that the sliding layer is located on the innermost and outermost radial sides and in the radial direction. A multilayer sliding bearing body integrally having an inner circumferential side cylindrical portion and an outer circumferential side cylindrical portion to be superposed is formed, and a reinforcing body element is provided between the inner circumferential side cylindrical portion and the outer circumferential side cylindrical portion of the multilayer sliding bearing body. The cylindrical part of the body is fitted, and the collar part of the reinforcing body is placed inside or on the outer peripheral side of the inner peripheral side cylindrical part of the multilayer sliding bearing body Bend the outside of the cylinder part to make the inner cylinder part or outer cylinder part on the inner circumference side of the flange part the inner circumference surface of the inner cylinder part of the multilayered sliding bearing body or the radial direction of the outer cylinder part. An outer peripheral side consisting of an inner peripheral side cylindrical part and a cylindrical part or a heel part, which are brought into contact with the outer peripheral surface, folded in half in an endless annular metal plate and overlapped with each other in the radial direction Forming a reinforcing body integrally having a cylindrical portion.
[0016]
According to the manufacturing method of the multi-layer sliding bearing of the first aspect, there is no butt portion such as a winding bush, and therefore, it can be used in place of a thick rolling bearing and the rotating shaft to be supported is smoothly rotated. The above-described multi-layer sliding bearing can be manufactured, and the cylindrical portion of the reinforcing body is fitted between the inner peripheral side cylindrical portion and the outer peripheral side cylindrical portion of the multi-layer sliding bearing body. The multi-layer sliding bearing body and the reinforcing body are firmly connected to each other in order to bend the flange of the body to the inner side of the inner peripheral side cylindrical part of the multi-layer sliding bearing body or the outer side of the outer peripheral side cylindrical part to form a reinforcing body. Multi-layer plain bearings can be manufactured.
[0017]
In the manufacturing method of the multi-layer sliding bearing according to the first aspect of the present invention, the multi-layer sliding bearing body is formed from the disc-shaped multi-layer plate as in the manufacturing method of the multi-layer sliding bearing according to the second aspect. In this case, as in the method of manufacturing the multi-layer sliding bearing of the third aspect, the disk-shaped multi-layer plate is deep-drawn and integrated with the disk-shaped bottom portion. Forming a multi-layer plain bearing body consisting of a cylindrical part with a sliding layer on the inner peripheral surface side and a flange part that is integral with the cylindrical part and has a continuous sliding layer on the sliding part of the cylindrical part However, a multilayer sliding bearing body may be formed from the multilayer sliding bearing body, and in this case, as in the method of manufacturing the multilayer sliding bearing of the fourth aspect, The bottom portion of the body is removed, and the flange portion of the multilayered plain bearing body is positioned on the outer peripheral side, and the flange portion is the cylindrical portion of the multilayered plain bearing body. A multi-layer slide having an outer peripheral side cylindrical portion formed of a flange portion of the multi-layer plain bearing body and an inner peripheral side cylindrical portion formed of a cylindrical portion of the multi-layer slide bearing body by bending so as to overlap in the radial direction. A bearing body may be formed.
[0018]
In the manufacturing method of the multi-layer sliding bearing according to the first aspect of the present invention, as in the manufacturing method of the multi-layer sliding bearing according to the fifth aspect, the cylindrical portion in which the sliding layer is arranged on the inner peripheral surface side and the cylinder Forming a multi-layer slide bearing element body composed of a flange portion which is integral with the cylindrical portion and has a continuous sliding layer on the sliding layer of the cylindrical portion. In this case, as in the method of manufacturing the multilayer sliding bearing of the sixth aspect, the flange portion of the multilayer sliding bearing body is positioned on the outer peripheral side. In addition, the flange portion is bent so as to overlap the cylindrical portion of the multilayer sliding bearing body in the radial direction, and the inner circumferential side cylindrical portion and the multilayer sliding bearing body consisting of the cylindrical portion of the multilayer sliding bearing body You may form the multilayer sliding bearing body which has the outer peripheral side cylindrical part which consists of a collar part of a body.
[0019]
Further, in the method for producing a multi-layer sliding bearing of the first aspect, as in the method for producing a multi-layer sliding bearing of the seventh aspect of the present invention, a part of the mesh and the mesh of the mesh are arranged and the A cylindrical portion in which a sliding layer is disposed on the inner peripheral surface side from a multilayer board having a sliding layer integrally attached to one surface of the net-like body, and a sliding portion of the cylindrical portion that is integral with the cylindrical portion. It is also possible to form a multi-layer plain bearing body body composed of a collar portion having a continuous sliding layer in the layer, and form a multi-layer plain bearing body from this multi-layer plain bearing body body. As in the manufacturing method of the multi-layer slide bearing of the eighth aspect, the multi-layer slide bearing body element body has a collar portion on which the slide layer of the collar portion is positioned on the outer peripheral side and the collar portion is a multi-layer slide bearing. The inner cylindrical portion and the multi-layer sliding shaft formed by the cylindrical portion of the multi-layer sliding bearing body are bent so as to overlap the cylindrical portion of the main body in the radial direction. An outer peripheral side cylindrical portion consisting of the flange portion of the Karadamototai may be formed multilayer slide bearing body having.
[0020]
When the multilayer sliding bearing body is formed by draw molding, that is, deep drawing, a multilayer sliding bearing body with extremely high dimensional accuracy can be obtained.
[0021]
In the manufacturing method according to any one of the above aspects, a wire mesh or a perforated plate formed by knitting or weaving expanded metal or fine metal wires may be used as the mesh.
[0022]
Next, the present invention and its embodiments will be described in more detail with reference to preferred examples shown in the drawings. The present invention is not limited to this example.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
In FIG. 1, an endless annular multi-layer plain bearing 1 of this example is formed by folding a metal plate such as a cold-rolled steel plate (SPCC: JISG4141) into two folds and overlapping each other in the radial direction. 2 and the outer peripheral side cylindrical portion 3 and the reinforcing body 5 integrally having a U-shaped cross-section connecting portion 4, a mesh body 6 made of a stainless steel plate (SUS) perforated plate and the like, and a through-hole of the mesh body 6 The mesh 7 has a sliding layer 9 made of a synthetic resin such as polytetrafluoroethylene resin containing lead as a filler that is partly disposed on the mesh 7 and is integrally attached to one surface 8 of the mesh 6. The multilayer plate 10 is folded in half so that the sliding layer 9 is positioned on the innermost and outermost radial sides, and the inner and outer cylindrical portions 11 and 12 are overlapped with each other in the radial direction. And U-shaped cross section 3 and comprises a multilayer sliding bearing member 14 having integrally a.
[0024]
In the multilayer sliding bearing 1, the inner circumferential side cylindrical portion 2 or the outer circumferential side cylindrical portion 3 of the reinforcing body 5 between the inner circumferential side cylindrical portion 11 and the outer circumferential side cylindrical portion 12 of the multilayer sliding bearing body 14, this example The inner cylindrical portion 2 is fitted, and the radial outer peripheral surface 21 of the outer peripheral cylindrical portion 12 of the multilayer sliding bearing body 14 or the inner peripheral surface 22 of the inner peripheral cylindrical portion 11 in the radial direction, In the example, the outer peripheral side cylindrical part 3 or the inner peripheral side cylindrical part 2 of the reinforcing body 5, in this example, the outer peripheral side cylindrical part 3 is disposed in contact with the outer peripheral surface 21 in the radial direction of the outer peripheral side cylindrical part 12.
[0025]
Further, in the multilayer sliding bearing 1, the outer circumferential surface 23 of the inner circumferential cylinder 11 and the outer circumferential cylindrical portion 12 are disposed between the inner circumferential cylindrical portion 11 and the outer circumferential cylindrical portion 12 of the multilayer sliding bearing body 14. In contact with the inner peripheral surface 24, the inner peripheral side cylindrical portion 2 or the outer peripheral side cylindrical portion 3 of the reinforcing body 5, which is the inner peripheral side cylindrical portion 2 in this example, is fitted.
[0026]
In such a multi-layer plain bearing 1, for example, the outer cylindrical portion 3 is fixed to a support member (not shown), while being inserted into a hole 25 defined by the inner peripheral surface 22 and slidable on the inner peripheral surface 22. It is used so that the rotating shaft which contacts can be supported rotatably.
[0027]
According to the multilayer sliding bearing 1, the multilayer plate 10 is folded in half so that the sliding layer 9 is positioned on the radially outermost side and the innermost circumferential side, and is superposed on each other in the radial direction. Since the multi-layer sliding bearing body 14 integrally including the cylindrical portion 11 and the outer peripheral side cylindrical portion 12 is provided, there is no butt portion such as a wound bush. Can be used in place of a thick-walled rolling bearing, the rotating shaft to be supported can be smoothly rotated, and the multi-layer sliding bearing body 14 is reinforced with the reinforcing body 5. Therefore, even if the multilayer sliding bearing body 14 having the thin inner circumferential cylindrical portion 11 and the outer circumferential cylindrical portion 12 is used, the inner circumferential surface 22 that is the bearing surface of the multilayer sliding bearing body 14 can be firmly held. On top, it is suitable for rolling bearings using rollers. It can be as a substitute.
[0028]
The multi-layer sliding bearing 1 is manufactured as follows. First, an endless annular metal plate 31 as shown in FIGS. 2 and 3 is formed from a metal plate such as a cold-rolled steel plate, and the inner peripheral portion 32 of the metal plate 31 is bent by a press or the like, and FIG. As shown in the figure, the cylindrical portion 33 and the cylindrical portion 33 were integral with each other and had a flange portion 34 extending in the radial direction with an angle α in the range of 30 ° to 90 ° with respect to the cylindrical portion 33, in this example, 75 °. A reinforcing body element 35 is formed.
[0029]
Further, a part of the mesh body 6 made of a stainless steel plate (SUS) and a mesh 7 which is a through hole of the mesh body 6 are partly disposed and integrally attached to one surface 8 of the mesh body 6. A multilayer board 10 shown in FIGS. 5 and 6 having a sliding layer 9 made of a synthetic resin such as polytetrafluoroethylene resin containing lead as a filler, as described in JP-A-2001-140892. As shown in FIG.7 and FIG.8, the multilayer board 10 cut | disconnected by disk shape by the press etc. is prepared.
[0030]
Next, deep drawing is performed on the disk-shaped multilayer board 10 shown in FIGS. 7 and 8, and as shown in FIG. 9, the disk-shaped bottom 41 and the bottom 41 are integrated with each other and slide toward the inner peripheral surface side. A multi-layer sliding bearing body 44 is formed which includes a cylindrical portion 42 provided with a layer 9 and a flange portion 43 which is integral with the cylindrical portion 42 and has a sliding layer 9 continuous with the sliding layer 9 of the cylindrical portion 42. To do. Next, as shown in FIG. 10, the bottom 41 of the multi-layer sliding bearing body 44 is sheared and removed by a press or the like, and the flange 43 of the multi-layer sliding bearing body 44 is replaced by the sliding layer 9 of the flange 43. Press so that the flange portion 43 is positioned on the outer peripheral side and the flange portion 43 overlaps the cylindrical portion 42 of the multilayer sliding bearing body 44 in the radial direction and the sliding layer 9 is positioned on the innermost and outermost radial sides. The outer cylindrical portion 12 formed of the flange portion 43 of the multi-layer sliding bearing body 44 and the multi-layer are formed by folding in half and the like, and drawing them together to overlap each other in the radial direction as shown in FIG. The inner peripheral side cylindrical portion 11 composed of the cylindrical portion 42 of the plain bearing body 44 and the connecting portion 13 which is a bent portion connected to each of the inner peripheral side cylindrical portion 11 and the outer peripheral side cylindrical portion 12 are integrally provided. The multilayered plain bearing body 14 thus formed is formed.
[0031]
Further, an upper mold 53 attached to the upper base 50 as shown in FIG. 12 and having a conical concave surface 51 and a central circular hole 52, a conical convex surface 54 having a shape complementary to the conical concave surface 51, and a central small-diameter circular hole. 55 and a lower die 57 having a central large-diameter circular hole 56 concentric with the central small-diameter circular hole 55, and a small-diameter mounted on the lower base 58 and disposed in the central large-diameter circular hole 56 of the lower die 57. A mandrel 61 integrally having a cylindrical portion 59 and a large-diameter cylindrical portion 60, a guide rod 62 attached to the lower base 58 and guiding the vertical movement of the lower die 57, and the lower die 57 as the lower base A pressing device 64 having an elastic member 63 elastically supported on 58 is prepared. Similarly, as shown in FIG. 12, the multilayer sliding bearing body 14 is fitted into the central small diameter circular hole 55 and the multilayer sliding bearing is fitted. The reinforcing body element 35 is disposed on the body 14, and then The mold 53 is lowered, and the cylindrical portion 33 of the reinforcing body 35 is press-fitted between the inner peripheral side cylindrical portion 11 and the outer peripheral side cylindrical portion 12 of the multilayer sliding bearing body 14 as shown in FIG. And the flange 34 extended radially with an angle α of 75 ° with respect to the cylindrical portion 33 is extended radially with an angle α of 40 ° with respect to the cylindrical portion 33 by the conical concave surface 51 and the convex surface 54 of the cone. Like that.
[0032]
After that, the combined body 71 of the integrated reinforcing body body 35 and the multilayer sliding bearing body 14 is removed from the press device 64, and then the reinforcing body body 35 in the removed combined body 71 shown in FIG. The collar 34 is pressed while being deep-drawn, and the inner side of the inner cylindrical part 11 or the outer side of the outer cylindrical part 12 of the multi-layer sliding bearing body 14, in this example, the outer cylindrical part. The outer peripheral side cylindrical portion 2 or the outer peripheral side cylindrical portion 3, which is formed by the flange portion 34, in this example, the outer peripheral side cylindrical portion 3 is bent in the radial direction of the inner peripheral side cylindrical portion 11 of the multilayer sliding bearing body 14. Of the inner peripheral surface 22 or the outer peripheral surface 21 of the outer peripheral side cylindrical portion 12, in this example, the outer peripheral surface 21 of the outer peripheral side cylindrical portion 12 is brought into contact with the outer peripheral surface 21. One end of the inner peripheral side cylindrical portion 11 in the axial direction is subjected to a press or the like on the end surface side. And diameter of the side brought into close contact with this connecting portion 4 of the reinforcing member 5, thus forming a multilayer sliding bearing 1 as shown in FIG.
[0033]
According to the manufacturing method of the multi-layer sliding bearing 1 as described above, there is no butt portion such as a winding bush, and therefore, it can be used in place of a thick-walled rolling bearing and smoothly rotate a rotating shaft to be supported. The multi-layer sliding bearing 1 capable of being manufactured can be manufactured, and the cylindrical portion 33 of the reinforcing body 35 is fitted between the inner cylindrical portion 11 and the outer cylindrical portion 12 of the multi-layer sliding bearing body 14. In order to form the reinforcing body 5 by bending the flange portion 34 of the reinforcing body 35 to the outside of the outer cylindrical portion 12 of the multi-layer sliding bearing body 14, the multi-layer sliding bearing body 14 and the reinforcing body 5 are mutually connected. The multi-layer sliding bearing body 1 can be manufactured in a tightly coupled manner, and in addition, since the multi-layer sliding bearing body 44 is formed by draw molding, that is, deep drawing, a multi-layer sliding bearing body with extremely high dimensional accuracy is provided. A body 44 can be obtained.
[0034]
【The invention's effect】
According to the present invention, there is no abutting portion such as a wound bush, and therefore, it can be used in place of a thick rolling bearing, and a rotating shaft and the like to be supported can be smoothly rotated, and a manufacturing method thereof Can be provided.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an example of a preferred embodiment of the present invention.
FIG. 2 is an explanatory diagram of the manufacturing method of the example shown in FIG.
3 is an explanatory diagram of the manufacturing method of the example shown in FIG. 1, and is a cross-sectional view taken along line III-III shown in FIG.
4 is an explanatory diagram of the manufacturing method of the example shown in FIG. 1. FIG.
FIG. 5 is an explanatory diagram of the manufacturing method of the example shown in FIG. 1;
6 is an explanatory diagram of the manufacturing method of the example shown in FIG. 1, and is a cross-sectional view taken along line VI-VI shown in FIG.
7 is an explanatory diagram of the manufacturing method of the example shown in FIG. 1. FIG.
8 is an explanatory diagram of the manufacturing method of the example shown in FIG. 1, and is a cross-sectional view taken along line VIII-VIII shown in FIG.
FIG. 9 is an explanatory diagram of the manufacturing method of the example shown in FIG. 1;
10 is an explanatory diagram of the manufacturing method of the example shown in FIG.
FIG. 11 is an explanatory diagram of the manufacturing method of the example shown in FIG. 1;
12 is an explanatory diagram of the manufacturing method of the example shown in FIG. 1. FIG.
13 is an explanatory diagram of the manufacturing method of the example shown in FIG. 1. FIG.
14 is an explanatory diagram of the manufacturing method of the example shown in FIG. 1. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Multi-layer sliding bearing 2, 11 Inner peripheral side cylindrical part 3, 12 Outer peripheral side cylindrical part 5 Reinforcement body 6 Net-like body 7 Mesh 8 Surface 9 Sliding layer 10 Multi-layer plate 14 Multi-layer sliding bearing body

Claims

A reinforcing body having an inner cylindrical portion and an outer cylindrical portion integrally formed by folding a metal plate in two and overlapping each other in the radial direction, a net body, and a part of the mesh of the net body are arranged. In addition, a multilayer board having a synthetic resin sliding layer integrally attached to at least one surface of the mesh body is arranged so that the sliding layer is positioned on the innermost circumferential side and the outermost circumferential side in the radial direction. A multi-layer sliding bearing body integrally formed with an inner peripheral cylindrical portion and an outer peripheral cylindrical portion that are folded in a fold and overlap each other in the radial direction. The inner circumferential side cylindrical portion or the outer circumferential side cylindrical portion of the reinforcing body is fitted between the outer circumferential side cylindrical portion and the outer circumferential side cylindrical portion, and the radial outer circumferential surface or inner circumference of the outer circumferential side cylindrical portion of the multilayer sliding bearing body The outer peripheral side cylindrical part or the inner peripheral side cylindrical part of the reinforcing body is in contact with the radially inner peripheral surface of the side cylindrical part Provided that in multilayer sliding bearings are.

The inner periphery of the reinforcing body is in contact with the outer peripheral surface of the inner peripheral cylindrical portion and the inner peripheral surface of the outer peripheral cylindrical portion between the inner peripheral cylindrical portion and the outer peripheral cylindrical portion of the multilayer plain bearing body. The multilayer sliding bearing according to claim 1, wherein the side cylindrical portion or the outer peripheral side cylindrical portion is fitted.

The multilayer sliding bearing according to claim 1 or 2, wherein the mesh body is made of expanded metal, a metal mesh formed by knitting or weaving fine metal wires, or a perforated plate.

The inner peripheral part of the endless annular metal plate is bent to have a cylindrical part and a flange part that is integral with the cylindrical part and extends radially at an angle in the range of 30 ° to 90 ° with respect to the cylindrical part. A multi-layer having a sliding body made of synthetic resin, part of which is arranged on the mesh and the mesh of the mesh, and is integrally attached to one surface of the mesh The plate is folded in half so that the sliding layer is positioned on the innermost and outermost radial sides, and integrally has an inner cylindrical portion and an outer cylindrical portion that overlap each other in the radial direction. A multi-layer sliding bearing body is formed, and the cylindrical portion of the reinforcing body is fitted between the inner cylindrical portion and the outer cylindrical portion of the multi-layer sliding bearing body, and the flange portion of the reinforcing body is combined. The inner cylindrical part or outer periphery made up of a collar by bending inside the inner cylindrical part or outside the outer cylindrical part of the layered plain bearing body The endless annular metal plate is folded in half by bringing the side cylindrical portion into contact with the radially inner peripheral surface of the inner peripheral cylindrical portion of the multilayer plain bearing body or the radial outer peripheral surface of the outer cylindrical portion. And a multi-layer sliding bearing which forms a reinforcement body integrally having an inner peripheral side cylindrical portion made up of a flange portion or a cylindrical portion and an outer peripheral side cylindrical portion made up of a cylindrical portion or a flange portion, which overlap with each other in the radial direction. Production method.

The manufacturing method of the multilayer sliding bearing of Claim 4 which forms a multilayer sliding bearing body from a disk-shaped multilayered board.

A disk-shaped multilayer plate is deep-drawn to form a disk-shaped bottom part, a cylindrical part integral with the bottom part, and a sliding part disposed on the inner peripheral surface side, and a cylindrical part integral with the cylindrical part. 6. A multi-layer sliding bearing body comprising a sliding portion having a continuous sliding layer as a sliding layer is formed, and a multi-layer sliding bearing body is formed from the multi-layer sliding bearing body. Method for producing a multi-layer plain bearing.

The bottom of the multi-layer plain bearing body is removed, and the flange of the multi-layer plain bearing body is positioned on the outer peripheral side, and the collar is a cylinder of the multi-layer plain bearing body. The outer peripheral side cylindrical portion consisting of the flange portion of the multilayer sliding bearing body and the inner peripheral side cylindrical portion consisting of the cylindrical portion of the multilayer sliding bearing body are folded. The method for producing a multilayer sliding bearing according to claim 6, wherein a layered sliding bearing body is formed.

A multi-layer sliding bearing body is formed which includes a cylindrical portion having a sliding layer disposed on the inner peripheral surface side and a flange portion integral with the cylindrical portion and having a sliding layer continuous with the sliding layer of the cylindrical portion. The method for producing a multi-layer slide bearing according to claim 4, wherein a multi-layer slide bearing body is formed from the multi-layer slide bearing body.

The multi-layer sliding bearing body element is folded so that the flange portion of the flange portion is positioned on the outer peripheral side and the flange portion overlaps the cylindrical portion of the multi-layer sliding bearing body element in the radial direction. 9. The multi-layered sliding bearing body according to claim 8, wherein the multi-layered sliding bearing body has an inner peripheral side cylindrical portion composed of a cylindrical portion of the plain bearing body and an outer peripheral side cylindrical portion composed of a flange portion of the multilayer sliding bearing body. A method for manufacturing a layered plain bearing.

A sliding layer is disposed on the inner peripheral surface side from a multilayer board having a mesh body and a sliding layer partially disposed on the mesh body and integrally attached to one surface of the mesh body. A multi-layer sliding bearing element body comprising a cylindrical part and a flange part integral with the cylindrical part and having a sliding layer continuous with the sliding layer of the cylindrical part. The manufacturing method of the multilayer sliding bearing of Claim 4 which forms a multilayer sliding bearing body.

The multi-layer sliding bearing body element is folded so that the flange portion of the flange portion is positioned on the outer peripheral side and the flange portion overlaps the cylindrical portion of the multi-layer sliding bearing body element in the radial direction. The multi-layer sliding bearing body according to claim 10, wherein the multi-layer sliding bearing body has an inner peripheral side cylindrical portion including a cylindrical portion of the plain bearing body and an outer peripheral side cylindrical portion including a flange portion of the multilayer sliding bearing body. A method of manufacturing a multi-layer plain bearing.

The manufacturing method of the multilayer sliding bearing as described in any one of Claims 4-11 using the wire mesh formed by knitting or weaving an expanded metal, a metal fine wire, or a perforated plate as a net-like body.