JP4493943B2

JP4493943B2 - Manufacturing method of sliding device

Info

Publication number: JP4493943B2
Application number: JP2003188962A
Authority: JP
Inventors: 充山崎; 信一郎山田
Original assignee: Nippon Bearing Co Ltd
Current assignee: Nippon Bearing Co Ltd
Priority date: 2003-06-30
Filing date: 2003-06-30
Publication date: 2010-06-30
Anticipated expiration: 2023-06-30
Also published as: JP2005023979A

Description

【０００１】
【発明の属する技術分野】
本発明は、摺動装置の製造方法に関するものである。
【０００２】
【従来の技術及び発明が解決しようとする課題】
従来の縦湾曲線摺動する摺動装置として、軸21に対して摺動体22が縦湾曲線摺動するように設けられた図１の摺動装置がある。
【０００３】
具体的には、軸21及び摺動体22に、縦湾曲形状の第一負荷溝21ａが形成された縦湾曲形状の第一負荷部構成材21ｂ及び縦湾曲形状の第二負荷溝22ａが形成された縦湾曲形状の第二負荷部構成材22ｂが、該第一負荷溝21ａと第二負荷溝22ａとが対向して負荷路23が形成されるように設けられ、負荷路23には該負荷路23を転動移動する複数の転動体24が配設され、これらの転動体24は負荷路23を移動する板状の転動体保持器25により所定間隔を保持する状態で配設されている。
【０００４】
尚、図１の摺動装置の場合、負荷路23は左右一カ所ずつ設けられている。
【０００５】
ところで、この従来の縦湾曲線摺動する摺動装置は、一軸方向に縦湾曲線摺動するものであり、例えばＸ−Ｙ二軸方向に対する縦湾曲線摺動を得たい場合には、この従来の二つの摺動装置を一方を他方に対して９０度回転させて重ねたものを用いている。
【０００６】
従って、軸21及び摺動体22が２個必要となり、合計４部材が重なる構成となるため、従来の摺動装置の二倍の高さの設置スペースが必要となり、それだけ使用できる場所が制限され、汎用性に劣るという欠点がある。
【０００７】
この欠点は、第一負荷部構成材21ｂ及び第二負荷部構成材22ｂは縦方向に湾曲するため、軸21及び摺動体22の高さはある程度の高さが必要となり、従って、個々の摺動装置をコンパクトにできないことにも起因する。
【０００８】
本発明は、上述の問題点を解決したもので、摺動体と軸とを一体とした摺動軸を用いることで、従来のように単に一軸方向に縦湾曲線摺動する摺動装置を二段に組み合わせる構成に比し、高さを大幅に低くしたコンパクトな構成を実現できると共に、製作工程及び部品点数を削減して製作が容易且つコスト安となる極めて実用性に秀れた摺動装置の製造方法を提供するものである。
【０００９】
【課題を解決するための手段】
添付図面を参照して本発明の要旨を説明する。
【００１０】
固定軸１と、この固定軸１に対して縦湾曲線摺動する摺動軸２と、この摺動軸２に対して縦湾曲線摺動する摺動体３とから成り、前記固定軸１と前記摺動軸２の間には縦湾曲形状の下側負荷路４が設けられ、前記摺動軸２と前記摺動体３の間には縦湾曲形状の上側負荷路５が設けられ、この下側負荷路４及び上側負荷路５には該下側負荷路４及び該上側負荷路５を転動移動する複数の転動体10が配設され、前記下側負荷路４は、前記固定軸１と前記摺動軸２に夫々対向状態となるように形成された縦湾曲形状の下側第一負荷溝４ａと下側第二負荷溝４ｂとで構成され、前記上側負荷路５は、前記摺動軸２と前記摺動体３に夫々対向状態となるように形成された縦湾曲形状の上側第一負荷溝５ａと上側第二負荷溝５ｂとで構成されており、前記下側第一負荷溝４ａは、前記固定軸１に設けられる下側第一負荷部構成材６に形成され、この下側第一負荷溝４ａは、前記下側第一負荷部構成材６に設けられた平坦面を加工基準面とし、この平坦面と平行若しくは垂直な接線を有する縦湾曲形状に形成され、前記下側第二負荷溝４ｂは、前記摺動軸２の前記固定軸１側に設けられる下側第二負荷部構成材７に形成され、この下側第二負荷溝４ｂは、前記下側第二負荷部構成材７に設けられた平坦面を加工基準面とし、この平坦面と平行若しくは垂直な接線を有する縦湾曲形状に形成され、前記上側第一負荷溝５ａは、前記摺動軸２の前記摺動体３側に設けられる上側第一負荷部構成材８に形成され、この上側第一負荷溝５ａは、前記上側第一負荷部構成材８に設けられた平坦面を加工基準面とし、この平坦面と平行若しくは垂直な接線を有する縦湾曲形状に形成され、前記上側第二負荷溝５ｂは、前記摺動体３に設けられる上側第二負荷部構成材９に形成され、この上側第二負荷溝５ｂは、前記上側第二負荷部構成材９に設けられた平坦面を加工基準面とし、この平坦面と平行若しくは垂直な接線を有する縦湾曲形状に形成され、前記下側第一負荷部構成材６，前記下側第二負荷部構成材７，前記上側第一負荷部構成材８及び前記上側第二負荷部構成材９は、前記加工基準面となる前記平坦面を取付基準面として前記固定軸１，前記摺動軸２及び前記摺動体３に設けた前記平坦面と平行な平行平坦面に取付可能に構成された摺動装置の製造方法であって、前記固定軸１，前記摺動軸２及び前記摺動体３に設けた前記平行平坦面は夫々、前記固定軸１及び前記摺動体３を被取付部材に取り付ける際、前記摺動軸２及び前記摺動体３の摺動軌道の曲率中心と前記下側負荷路４及び前記上側負荷路５の曲率中心とを一致させるための基準面となるように形成することを特徴とする摺動装置の製造方法に係るものである。
【００１１】
また、請求項１記載の摺動装置の製造方法において、前記下側第一負荷部構成材６にして前記固定軸１の上面と対向する下面が前記加工基準面及び取付基準面となる平坦面に設定され、前記下側第一負荷溝４ａは前記平坦面と平行な接線を有する縦湾曲形状に形成されており、前記下側第二負荷部構成材７にして前記摺動軸２の下面と対向する上面が前記加工基準面及び前記取付基準面となる平坦面に設定され、前記下側第二負荷溝４ｂは前記平坦面と平行な接線を有する縦湾曲形状に形成されており、前記上側第一負荷部構成材８にして前記摺動軸２の上面と対向する下面が前記加工基準面及び前記取付基準面となる平坦面に設定され、前記上側第一負荷溝５ａは前記平坦面と平行な接線を有する縦湾曲形状に形成されており、前記上側第二負荷部構成材９にして前記摺動体３の下面と対向する上面が前記加工基準面及び前記取付基準面となる平坦面に設定され、前記上側第二負荷溝５ｂは前記平坦面と平行な接線を有する縦湾曲形状に形成されていることを特徴とする摺動装置の製造方法に係るものである。
【００１２】
また、請求項２記載の摺動装置の製造方法において、前記固定軸１として上下面を夫々前記平行平坦面とした基部１ａと該基部１ａに設けられた断面視略長方形状の凸条１ｂとから成るものが採用され、この固定軸１の前記凸条１ｂの左右両側に夫々前記下側第一負荷部構成材６が設けられていることを特徴とする摺動装置の製造方法に係るものである。
【００１３】
また、請求項３記載の摺動装置の製造方法において、前記摺動軸２として上下面を夫々前記平行平坦面とした基部２ｃの左右に袖部２ａ・２ｂが垂下され上面に断面視略長方形状の凸条２ｄが設けられ前記固定軸１に被嵌されるものが採用され、この摺動軸２の下面にして前記両袖部２ａ・２ｂの一側に夫々下側第二負荷部構成材７が設けられ、この摺動軸２の前記凸条２ｄの左右両側に夫々前記上側第一負荷部構成材８が設けられていることを特徴とする摺動装置の製造方法に係るものである。
【００１４】
また、請求項４記載の摺動装置の製造方法において、前記摺動体３として上下面を夫々前記平行平坦面とした基部３ｃの左右に袖部３ａ・３ｂが垂下され前記摺動軸２に被嵌されるものが採用され、この摺動体３の下面にして前記両袖部３ａ・３ｂの一側に夫々上側第二負荷部構成材９が設けられていることを特徴とする摺動装置の製造方法に係るものである。
【００１５】
また、請求項５記載の摺動装置の製造方法において、前記固定軸１にして前記摺動軸２の左右の袖部２ａ・２ｂの下面及び前記下側第二負荷部構成材７の下面と対向する部位には切欠部Ａが形成されていることを特徴とする摺動装置の製造方法に係るものである。
【００１６】
また、請求項６記載の摺動装置の製造方法において、前記摺動軸２にして前記摺動体３の左右の袖部３ａ・３ｂの下面及び前記上側第二負荷部構成材９の下面と対向する部位には切欠部Ｂが形成されていることを特徴とする摺動装置の製造方法に係るものである。
【００１７】
また、請求項１〜７いずれか１項に記載の摺動装置の製造方法において、前記下側負荷路４と前記上側負荷路５は、その延設方向が９０度で交叉するような縦湾曲形状に設定されていることを特徴とする摺動装置の製造方法に係るものである。
【００１８】
また、請求項１〜８いずれか１項に記載の摺動装置の製造方法において、前記下側負荷路４及び前記上側負荷路５には、前記転動体10を所定間隔で保持する転動体保持器11が配設されていることを特徴とする摺動装置の製造方法に係るものである。
【００１９】
また、請求項１〜９いずれか１項に記載の摺動装置の製造方法において、前記転動体10として円柱体が採用され、これらの円柱体は隣接する円柱体の軸芯線が直角に交叉する状態で配設されていることを特徴とする摺動装置の製造方法に係るものである。
【００２０】
【発明の作用及び効果】
単に一軸方向に縦湾曲線摺動する摺動装置を二段に重ねた構成と異なり、下側の摺動装置の摺動体22と、上側の摺動装置の軸21とを、これらを一体にした構成の摺動軸２で置き換えることにより、軸21及び摺動体22のいずれか一方の厚さの分だけ高さを低くすることができ、よって、より一層汎用性に秀れたコンパクトな二軸方向に対して縦湾曲線摺動する摺動装置が実現でき、また、製作工程及び部品点数が削減でき、容易且つコスト安に製作できることになる。
【００２１】
以上、本発明は、コンパクトな構成にして容易且つコスト安に製作できる極めて実用性に秀れた摺動装置の製造方法となる。
【００２２】
【発明の実施の形態】
図２〜５は本発明の一実施例を図示したものであり、以下に説明する。
【００２３】
本実施例は、固定軸１と、該固定軸１に対して縦湾曲線摺動する摺動軸２と、該摺動軸２に対して縦湾曲線摺動する摺動体３とから成る摺動装置であって、固定軸１と摺動軸２の間には縦湾曲形状の下側負荷路４が設けられ、摺動軸２と摺動体３の間には縦湾曲形状の上側負荷路５が設けられ、この下側負荷路４及び上側負荷路５には該下側負荷路４及び上側負荷路５を転動移動する複数の転動体10が配設され、前記下側負荷路４は、固定軸１と摺動軸２に夫々対向状態となるように形成された縦湾曲形状の下側第一負荷溝４ａと下側第二負荷溝４ｂとで構成され、前記上側負荷路５は、摺動軸２と摺動体３に夫々対向状態となるように形成された縦湾曲形状の上側第一負荷溝５ａと上側第二負荷溝５ｂとで構成されているものである。
【００２４】
即ち、本実施例は、単に一軸方向に縦湾曲線摺動する摺動装置を二段に重ねた構成でなく、下側の摺動装置の摺動体と、上側の摺動装置の軸とを一体化した摺動軸２を介して固定軸１と摺動体３とが設けられるもので、この摺動体３を二軸方向に縦湾曲線摺動するように構成したものである。
【００２５】
従って、従来の摺動装置の摺動体若しくは軸の厚さの分だけ高さを低くすることができ、従来の二軸方向に縦湾曲線摺動する摺動装置よりコンパクトな構成となる。
【００２６】
各部を具体的に説明すると、図２，３に図示したように、固定軸１は、上下面を夫々平坦面とした平板形状の基部１ａと該基部１ａに立設された断面視略長方形状の凸条１ｂとから成るものが採用されている。
【００２７】
固定軸１の上面にして凸条１ｂの両側には、下側第一負荷溝４ａが形成された固定軸１と略同じ長さの下側第一負荷部構成材６が付設されている。
【００２８】
下側第一負荷部構成材６の下面は平坦面に形成され、この平坦面を加工基準面としてこの下側第一負荷部構成材６の外側面に前記下側第一負荷溝４ａが形成されている。具体的には、下側第一負荷溝４ａは、前記平坦面と平行な接線を有する縦湾曲形状に形成されている。また、前記下側第一負荷部構成材６の内側面は平坦面に形成され、該内側面を基準面として、下側第一負荷溝４ａはその深さが一定に形成される。
【００２９】
この下側第一負荷部構成材６は、前記平坦面を取付基準面として前記固定軸１の基部１ａの上面に付設されている。具体的には、下側第一負荷部構成材６は、その内側面が前記凸条１ｂの外側面と当接した状態で夫々付設されている。従って、前記下側第一負荷部構成材６の内側面を基準面とすることで、前記凸条１ｂの外側面と前記下側第一負荷溝４ａとの間隔は一定となる。また、下側第一負荷部構成材６の上面は前記下側負荷路４と同様な縦湾曲を有する縦湾曲形状面に設定されている。
【００３０】
尚、本実施例においては、前記固定軸１に前記下側第一負荷溝４ａが形成された下側第一負荷部構成材６を設けた構成であるが、直接固定軸１に前記下側第一負荷溝４ａを形成する（所謂一体型の）構成としても良く、この場合には、部品点数及び製作工程を一層削減してよりコスト安に製作できる。
【００３１】
この固定軸１には、上下面を夫々平坦面とした基部２ｃの左右に袖部２ａ・２ｂを垂下した断面視略逆凹形状で、上面に前記固定軸１の凸条１ｂと同形状の凸条２ｄを有する摺動軸２が被嵌されている。
【００３２】
摺動軸２の下面にして両袖部２ａ・２ｂの一側には、下側第二負荷溝４ｂが形成された摺動軸２と略同じ長さの下側第二負荷部構成材７が付設されている。
【００３３】
下側第二負荷部構成材７の上面は平坦面に形成され、この平坦面を加工基準面としてこの下側第二負荷部構成材７の内側面に前記下側第二負荷溝４ｂが形成されている。具体的には、下側第二負荷溝４ｂは、前記平坦面と平行な接線を有する縦湾曲形状に形成されている。また、前記下側第二負荷部構成材７の外側面は平坦面に形成され、該外側面を基準面として、下側第二負荷溝４ｂはその深さが一定に形成される。
【００３４】
この下側第二負荷部構成材７は、前記平坦面を取付基準面として前記基部２ｃの下面に付設されている。具体的には、下側第二負荷部構成材７は、その外側面が前記左右の袖部２ａ・２ｂの内側面と当接した状態で夫々付設されている。従って、前記下側第二負荷部構成材７の外側面を基準面とすることで、前記左右の袖部２ａ・２ｂの内側面と前記下側第二負荷溝４ｂとの間隔は一定となる。また、下側第二負荷部構成材７の下面は前後所定長を残して平坦面に設定されている。同様に袖部２ａ・２ｂの下面も前後所定長を残して平坦面に設定されている。
【００３５】
従って、固定軸１と摺動軸２との間隙を可及的に小さくすることができ、よって、本摺動装置の高さを可及的に低くし、コンパクト化が達成できる。
【００３６】
尚、本実施例においては、前記摺動軸２に前記下側第二負荷溝４ｂが形成された下側第二負荷部構成材７を設けた構成であるが、直接摺動軸２に前記下側第二負荷溝４ｂを形成する（所謂一体型の）構成としても良く、この場合には、部品点数及び製作工程を一層削減してよりコスト安に製作できる。
【００３７】
この摺動軸２の袖部２ａ・２ｂと凸条２ｄは、その延設方向が９０度で交叉するように設定されている。従って、本実施例は、前記摺動軸２の摺動方向と、前記摺動体３の摺動方向が９０度異なる構成である。尚、この交叉各度は４５度等、他の各度に設定しても良い。
【００３８】
摺動軸２の上面にして凸条２ｄの両側には、上側第一負荷溝５ａが形成された摺動軸２と略同じ長さの上側第一負荷部構成材８が付設されている。
【００３９】
上側第一負荷部構成材８の下面は平坦面に形成され、この平坦面を加工基準面としてこの上側第一負荷部構成材８の外側面に前記上側第一負荷溝５ａが形成されている。具体的には、上側第一負荷溝５ａは、前記平坦面と平行な接線を有する縦湾曲形状に形成されている。また、前記上側第一負荷部構成材８の内側面は平坦面に形成され、該内側面を基準面として、上側第一負荷溝５ａはその深さが一定に形成される。
【００４０】
この上側第一負荷部構成材８は、前記平坦面を取付基準面として前記摺動軸２の基部２ｃの上面に付設されている。具体的には、上側第一負荷部構成材８は、その内側面が前記凸条２ｄの外側面と当接した状態で夫々付設されている。従って、前記上側第一負荷部構成材８の内側面を基準面とすることで、前記凸条２ｄの外側面と前記上側第一負荷溝５ａとの間隔は一定となる。また、上側第一負荷部構成材８の上面は前記上側負荷路５と同様な縦湾曲を有する縦湾曲形状面に設定されている。
【００４１】
尚、本実施例においては、前記摺動軸２に前記上側第一負荷溝５ａが形成された上側第一負荷部構成材８を設けた構成であるが、直接摺動軸２に前記上側第一負荷溝５ａを形成する（所謂一体型の）構成としても良く、この場合には、部品点数及び製作工程を一層削減してよりコスト安に製作できる。
【００４２】
この摺動軸２には、上下面を夫々平坦面とした基部３ｃの左右に袖部３ａ・３ｂを垂下した断面視略逆凹形状の摺動体３が被嵌されている。
【００４３】
摺動体３の下面にして両袖部３ａ・３ｂの一側には、上側第二負荷溝５ｂが形成された摺動体３と略同じ長さの上側第二負荷部構成材９が付設されている。
【００４４】
上側第二負荷部構成材９の上面は平坦面に形成され、この平坦面を加工基準面としてこの上側第二負荷部構成材９の内側面に前記上側第二負荷溝５ｂが形成されている。具体的には、上側第二負荷溝５ｂは、前記平坦面と平行な接線を有する縦湾曲形状に形成されている。また、前記上側第二負荷部構成材９の外側面は平坦面に形成され、該外側面を基準面として、上側第二負荷溝５ｂはその深さが一定に形成される。
【００４５】
この上側第二負荷部構成材９は、前記平坦面を取付基準面として前記基部３ｃの下面に付設されている。具体的には、上側第二負荷部構成材９は、その外側面が前記左右の袖部３ａ・３ｂの内側面と当接した状態で夫々付設されている。従って、前記上側第二負荷部構成材９の外側面を基準面とすることで、前記左右の袖部３ａ・３ｂの内側面と前記上側第二負荷溝５ｂとの間隔は一定となる。また、上側第二負荷部構成材９の下面は前後所定長を残して平坦面に設定されている。同様に袖部３ａ・３ｂの下面も前後所定長を残して平坦面に設定されている。
【００４６】
従って、固定軸１と摺動軸２との間隙を可及的に小さくすることに加え、摺動軸２と摺動体３との間隙も可及的に小さくすることができ、よって、本摺動装置の高さを可及的に低くし、一層コンパクト化が達成できる。
【００４７】
尚、本実施例においては、前記摺動体３に前記上側第二負荷溝５ｂが形成された上側第二負荷部構成材９を設けた構成であるが、直接摺動体３に前記上側第二負荷溝５ｂを形成する（所謂一体型の）構成としても良く、この場合には、部品点数及び製作工程を一層削減してよりコスト安に製作できる。
【００４８】
加えて、下側第一負荷部構成材６，下側第二負荷部構成材７，上側第一負荷部構成材８及び上側第二負荷部構成材９は、固定軸１，摺動軸２及び摺動体３に取り付けられる取付基準面が平坦面に設定されているから、従来の縦湾曲形状の負荷部構成材に比し、可及的に高さを低くすることができ、この点からも一層コンパクト化が達成できる。
【００４９】
更に、固定軸１にして摺動軸２の左右の袖部２ａ・２ｂ下面及び下側第二負荷部構成材７下面と対向する部位には、前後所定長を残して切欠部Ａが形成されている。同様に、摺動軸２にして摺動体３の左右の袖部３ａ・３ｂ下面及び上側第二負荷部構成材９下面と対向する部位には、左右所定長を残して切欠部Ｂが形成されている。
【００５０】
従って、この切欠部Ａ・Ｂにより、摺動軸２及び摺動体３の縦湾曲線摺動移動が、前記固定軸１及び摺動軸２により阻害されにくくなり、一層前記固定軸１と摺動軸２との間隙及び摺動軸２と摺動体３との間隙を小さくすることができ、より一層コンパクト化が達成できる。
【００５１】
本実施例においては、下側第一負荷部構成材６・上側第一負荷部構成材８の下面及び下側第二負荷部構成材７・上側第二負荷部構成材９の上面に夫々下側第一負荷溝４ａ・上側第一負荷溝５ａ及び下側第二負荷溝４ｂ・上側第二負荷溝５ｂの加工基準面となる平坦面を形成しているが、この平坦面は下側第一負荷部構成材６・上側第一負荷部構成材８及び下側第二負荷部構成材７・上側第二負荷部構成材９の側面等の他の面に形成しても良いし、これら双方の面に形成しても良い。側面を平坦面とし、この平坦面を加工基準面とした場合には、下側第一負荷溝４ａ・上側第一負荷溝５ａ及び下側第二負荷溝４ｂ・上側第二負荷溝５ｂは、該平坦面と垂直な接線を有する縦湾曲形状となるように形成する。
【００５２】
下側第一負荷溝４ａ及び下側第二負荷溝４ｂは図５に図示したように、夫々断面視略横Ｖ字状に形成されている。この下側第一負荷溝４ａ及び下側第二負荷溝４ｂにより下側負荷路４は断面視略正菱形状となる。
【００５３】
下側負荷路４には、転動体保持器11が配設される。この転動体保持器11は、板体に、転動体10が転動可能な状態で保持される転動体保持窓を所定間隔で複数設けたものであり、この転動体保持器11の両側が下側第一負荷溝４ａ及び下側第二負荷溝４ｂの中央に形成される溝12に嵌入される。この転動体保持器11には、複数の転動体10が所定間隔をおいて保持される。また、この転動体保持器11は下側第一負荷溝４ａ及び下側第二負荷溝４ｂと略同形状の縦湾曲形状に設定されている。
【００５４】
同様に、上側第一負荷溝５ａ及び上側第二負荷溝５ｂは図４に図示したように、夫々断面視略横Ｖ字状に形成されている。この上側第一負荷溝５ａ及び上側第二負荷溝５ｂにより上側負荷路５は断面視略正菱形状となり、この上側負荷路５にも同様に転動体保持器11が配設される。
【００５５】
尚、転動体保持器11の板体としては、前記縦湾曲形状になじみやすいように、湾曲方向に可撓性を有するものが採用される。この可撓性は、合成樹脂等の可撓性を有する素材に起因するものや、板体を細かな板体から構成し、この細かな板体をリンク機構等を介して屈曲自在に連結した構成とすることに起因するものでも良い。尚、図中符号13は、転動体保持器11の抜け止め用のストッパーネジである。
【００５６】
転動体10としては円柱体が採用され、これらの円柱体は隣接する円柱体の軸芯線が直角に交叉する状態で配設されている。
【００５７】
以上、本実施例は、摺動機構として公知のクロスローラ機構を採用しているが、勿論ボールを転動体として配設した構成等、他の摺動機構を採用しても良い。
【００５８】
更に、本実施例においては、固定軸１，摺動軸２及び摺動体３に形成した平坦面と、下側第一負荷部構成材６，下側第二負荷部構成材７，上側第一負荷部構成材８及び上側第二負荷部構成材９に形成した平坦面とが平行になるように設定している。即ち、この固定軸１，摺動軸２及び摺動体３に形成した平坦面を取付基準面として被取付部材に固定軸１及び摺動体３を取り付けすることが可能となる。
【００５９】
具体的には、上述のように下側第一負荷溝４ａ及び下側第二負荷溝４ｂは、下側第一負荷部構成材６若しくは下側第二負荷部構成材７に設けた加工基準面と平行な接線を有する縦湾曲形状に設定し、上側第一負荷溝５ａ及び上側第二負荷溝５ｂは、上側第一負荷部構成材８若しくは上側第二負荷部構成材９に設けた加工基準面と平行な接線を有する縦湾曲形状に設定しているから、組みつけの際又は固定軸１若しくは摺動体３を所定の場所に取り付ける際、この固定軸１，摺動軸２及び摺動体３に形成した前記加工基準面と平行な平坦面は、摺動軸２及び摺動体３の湾曲線摺動軌道の曲率中心と前記下側負荷路４及び上側負荷路５の曲率中心とを一致させる際の面として用いることができる。
【００６０】
従って、縦湾曲線摺動する摺動装置で重要な回転中心位置設定を容易且つ精度良く行うことができる。特に、本実施例は、二軸方向に対する縦湾曲線摺動するものであり、一軸方向に対する縦湾曲線摺動より極めて調整が困難であるが、前記平坦面を用いることで容易に設定することが可能である。
【００６１】
本実施例は上述のように構成したから、単に一軸方向に縦湾曲線摺動する摺動装置を二段に重ねた構成と異なり、下側の摺動装置の摺動体22と、上側の摺動装置の軸21とを、これらを一体にした構成の摺動軸２で置き換えることにより、軸21及び摺動体22のいずれか一方の厚さの分だけ高さを低くすることができるから、より一層汎用性に秀れたコンパクトな二軸方向に対して縦湾曲線摺動する摺動装置を実現でき、また、製作工程及び部品点数が削減でき、容易且つコスト安に製作できる。
【００６２】
しかも、下側負荷路４及び上側負荷路５を形成する下側第一負荷部構成材６，下側第二負荷部構成材７及び上側第一負荷部構成材８，上側第二負荷部構成材９に夫々平坦面を形成し、この平坦面を取付基準面に設定して固定軸１，摺動軸２及び摺動体３に夫々取り付けられているから、従来の縦湾曲形状の負荷部構成材と異なり、高さを可及的に低くすることができ、この点からもより一層コンパクト化を達成することができる。
【００６３】
これは、従来の縦湾曲形状の負荷部構成材においては、該負荷部構成材の略中央部を通るような負荷溝を形成せざるを得なかったのに対し、本実施例においては、夫々の負荷部構成材６・７・８・９の上面若しくは下面に平坦面を形成することで、この平坦面を加工基準面として前記負荷部構成材６・７・８・９の中央部に限らず、任意の箇所に負荷溝４ａ・４ｂ・４ｃ・４ｄを形成できることから、この負荷部構成材６・７・８・９の厚さを可及的に薄くできるようになったことに起因する。
【００６４】
更に、切欠部Ａ・Ｂにより、摺動軸２及び摺動体３の縦湾曲線摺動移動が、前記固定軸１及び摺動軸２により阻害されにくくなり、一層前記固定軸１と摺動軸２との間隙及び摺動軸２と摺動体３との間隙を小さくすることができ、より一層コンパクト化が達成できる。
【００６５】
その上、縦湾曲線摺動する摺動装置で重要な回転中心位置設定を容易且つ精度良く行うことができる。
【００６６】
以上、本実施例は、コンパクトな構成にして容易且つコスト安に製作できる極めて実用性に秀れたものとなる。
【図面の簡単な説明】
【図１】従来例の一部を切り欠いた説明斜視図である。
【図２】本実施例の説明斜視図である。
【図３】本実施例の分解説明斜視図である。
【図４】本実施例の下側負荷路と平行な面で切断した説明断面図である。
【図５】本実施例の上側負荷路と平行な面で切断した説明断面図である。
【符号の説明】
１固定軸
２摺動軸
３摺動体
４下側負荷路
４ａ下側第一負荷溝
４ｂ下側第二負荷溝
５上側負荷路
５ａ上側第一負荷溝
５ｂ上側第二負荷溝
６下側第一負荷部構成材
７下側第二負荷部構成材
８上側第一負荷部構成材
９上側第二負荷部構成材
10 転動体
11 転動体保持器[0001]
BACKGROUND OF THE INVENTION
The present invention provides a sliding device To the manufacturing method It is related.
[0002]
[Prior art and problems to be solved by the invention]
As a conventional sliding device that slides along a vertical curve line, there is the sliding device shown in FIG.
[0003]
Specifically, a longitudinally curved first load portion constituting material 21b and a longitudinally curved second load groove 22a formed with a longitudinally curved first load groove 21a are formed on the shaft 21 and the sliding body 22. The vertical load-shaped second load portion constituting material 22b is provided so that the first load groove 21a and the second load groove 22a face each other to form a load path 23, and the load path 23 includes the load A plurality of rolling elements 24 that roll and move on the path 23 are arranged, and these rolling elements 24 are arranged in a state of being held at a predetermined interval by a plate-like rolling element holder 25 that moves on the load path 23. .
[0004]
In the case of the sliding device shown in FIG. 1, the load path 23 is provided at one place on each of the left and right sides.
[0005]
By the way, this conventional sliding device that slides in the longitudinal curve line slides in the longitudinal curve line in a uniaxial direction. Two conventional sliding devices are used in which one is rotated 90 degrees with respect to the other and overlapped.
[0006]
Accordingly, two shafts 21 and two sliding bodies 22 are required, and a total of four members are overlapped. Therefore, an installation space twice as high as that of the conventional sliding device is required, and the place where it can be used is limited. There is a disadvantage that it is inferior in versatility.
[0007]
This disadvantage is that the first load portion constituting material 21b and the second load portion constituting material 22b are curved in the longitudinal direction, and therefore the shaft 21 and the sliding body 22 need to have a certain height. This is also because the moving device cannot be made compact.
[0008]
The present invention solves the above-described problems. By using a sliding shaft in which a sliding body and a shaft are integrated, a sliding device that simply slides in a longitudinally curved line in one axial direction as in the prior art is provided. Compared to the configuration combined in stages, a compact configuration with a significantly lower height can be realized, and the manufacturing process and the number of parts can be reduced, making the manufacturing easier and less expensive. Manufacturing method It is to provide.
[0009]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0010]
A fixed shaft 1, a sliding shaft 2 that slides in a longitudinal curve with respect to the fixed shaft 1, and a sliding body 3 that slides in a longitudinal curve with respect to the sliding shaft 2. The A vertically curved lower load path 4 is provided between the fixed shaft 1 and the sliding shaft 2, and a vertically curved upper load path 5 is provided between the sliding shaft 2 and the sliding body 3. The lower load path 4 and the upper load path 5 are provided with a plurality of rolling elements 10 that roll and move along the lower load path 4 and the upper load path 5. The upper load path is composed of a lower first load groove 4a and a lower second load groove 4b formed in a longitudinally curved shape so as to be opposed to the fixed shaft 1 and the slide shaft 2, respectively. 5 is composed of a longitudinally curved upper first load groove 5a and upper second load groove 5b formed so as to face the sliding shaft 2 and the sliding body 3, respectively. The side first load groove 4a is formed in the lower first load portion constituting member 6 provided on the fixed shaft 1, and the lower first load groove 4a is formed on the lower first load groove 4a. A flat surface provided in the load member constituting material 6 is used as a processing reference surface, and is formed in a longitudinally curved shape having a tangent line parallel or perpendicular to the flat surface, and the lower second load groove 4b is formed on the sliding shaft 2. Is formed in the lower second load portion constituting material 7 provided on the fixed shaft 1 side, and the lower second load groove 4b is formed by machining a flat surface provided in the lower second load portion constituting material 7. The upper first load groove 5a is formed on the side of the sliding body 3 of the sliding shaft 2 and is formed in a longitudinally curved shape having a tangent line parallel or perpendicular to the flat surface as a reference surface. The upper first load groove 5a formed in the constituent material 8 has a flat surface provided in the upper first load portion constituent material 8 as a processing reference surface, and a longitudinal curve having a tangent line parallel or perpendicular to the flat surface. The upper second load groove 5b is formed in the shape of the sliding body 3. The upper second load portion constituting material 9 is formed on the upper second load portion constituting material 9, and the upper second load groove 5 b has a flat surface provided in the upper second load portion constituting material 9 as a processing reference surface, and is parallel or perpendicular to the flat surface. The lower first load part constituting material 6, the lower second load part constituting material 7, the upper first load part constituting material 8, and the upper second load part structure The material 9 is configured to be attachable to a parallel flat surface parallel to the flat surface provided on the fixed shaft 1, the slide shaft 2, and the slide body 3, using the flat surface serving as the processing reference surface as an attachment reference surface. A manufacturing method for a sliding device The parallel flat surfaces provided on the fixed shaft 1, the slide shaft 2 and the slide body 3, when the fixed shaft 1 and the slide body 3 are attached to a member to be mounted, respectively, A reference plane for matching the center of curvature of the sliding track of the sliding body 3 with the centers of curvature of the lower load path 4 and the upper load path 5 Form to be Sliding device characterized by that To the manufacturing method It is related.
[0011]
The sliding device according to claim 1 Manufacturing method The lower first load portion constituting material 6 has a lower surface facing the upper surface of the fixed shaft 1 set as a flat surface serving as the processing reference surface and the attachment reference surface, and the lower first load groove 4a is It is formed in a longitudinally curved shape having a tangent line parallel to the flat surface, and the upper surface facing the lower surface of the sliding shaft 2 as the lower second load portion constituting member 7 is the processing reference surface and the attachment reference. The lower second load groove 4b is formed in a longitudinally curved shape having a tangent line parallel to the flat surface, and is used as the upper first load portion constituting material 8 and the sliding member. The lower surface opposite to the upper surface of the shaft 2 is set to be a flat surface serving as the processing reference surface and the mounting reference surface, and the upper first load groove 5a is formed in a longitudinally curved shape having a tangent line parallel to the flat surface. And the upper second load portion constituting material 9 and below the sliding body 3 And the upper second load groove 5b is formed in a longitudinally curved shape having a tangent line parallel to the flat surface. Sliding device To the manufacturing method It is related.
[0012]
Moreover, the sliding device according to claim 2 Manufacturing method And the fixed shaft 1 has upper and lower surfaces respectively. Parallel What consists of the base 1a made into the flat surface and the protruding item | line 1b of cross-sectional view substantially rectangular shape provided in this base 1a is employ | adopted, The said convex of this fixed axis | shaft 1 is employ | adopted. Article The sliding device characterized in that the lower first load portion constituting material 6 is provided on each of the left and right sides of 1b. To the manufacturing method It is related.
[0013]
Moreover, the sliding device according to claim 3 Manufacturing method In FIG. 2, the upper and lower surfaces of the sliding shaft 2 are respectively Parallel A sleeve 2a, 2b is suspended from the left and right sides of the base portion 2c having a flat surface, and a ridge 2d having a substantially rectangular shape in cross section is provided on the upper surface, and is fitted on the fixed shaft 1, and this sliding shaft 2 is used. The lower second load portion constituting material 7 is provided on one side of the sleeve portions 2a and 2b on the lower surface of the sleeve, and the upper first load portion is provided on both the left and right sides of the projecting ridge 2d of the sliding shaft 2, respectively. A sliding device provided with a component 8 To the manufacturing method It is related.
[0014]
Moreover, the sliding device according to claim 4 Manufacturing method The upper and lower surfaces of the sliding body 3 are respectively Parallel The sleeve 3a, 3b is suspended from the left and right sides of the flat base 3c and is fitted on the sliding shaft 2. The bottom of the sliding body 3 is used as one side of the sleeves 3a, 3b. Each of the sliding devices is provided with an upper second load part component 9 To the manufacturing method It is related.
[0015]
Moreover, the sliding device according to claim 5 Manufacturing method In addition, a notch A is formed in a portion of the fixed shaft 1 facing the lower surfaces of the left and right sleeve portions 2a and 2b of the sliding shaft 2 and the lower surface of the lower second load portion constituting material 7. Sliding device characterized by that To the manufacturing method It is related.
[0016]
The sliding device according to claim 6. Manufacturing method In this case, a notch B is formed in a portion facing the lower surface of the left and right sleeve portions 3a and 3b of the sliding body 3 and the lower surface of the upper second load portion component 9 as the sliding shaft 2. Sliding device characterized by To the manufacturing method It is related.
[0017]
Moreover, the sliding device of any one of Claims 1-7 Manufacturing method In the above, the lower load path 4 and the upper load path 5 are set in a vertically curved shape so that the extending direction intersects at 90 degrees. To the manufacturing method It is related.
[0018]
The sliding device according to any one of claims 1 to 8. Manufacturing method In the above, the lower load path 4 and the upper load path 5 are provided with rolling element holders 11 for holding the rolling elements 10 at predetermined intervals. To the manufacturing method It is related.
[0019]
The sliding device according to any one of claims 1 to 9. Manufacturing method In this case, a cylindrical body is employed as the rolling element 10, and these cylindrical bodies are arranged in a state where the axial cores of adjacent cylindrical bodies intersect at right angles. To the manufacturing method It is related.
[0020]
[Action and effect of the invention]
Unlike the configuration in which the sliding devices that slide in a longitudinal curve line simply in one axial direction are stacked in two stages, the sliding body 22 of the lower sliding device and the shaft 21 of the upper sliding device are integrated together. By replacing with the sliding shaft 2 having the above-described configuration, the height can be reduced by the thickness of either the shaft 21 or the sliding body 22, and therefore, the compact two-piece that is more versatile. A sliding device that slides in a longitudinally curved line with respect to the axial direction can be realized, the manufacturing process and the number of parts can be reduced, and manufacturing can be performed easily and at low cost.
[0021]
As described above, the present invention is an extremely practical sliding device that can be manufactured easily and at a low cost in a compact configuration. Manufacturing method Become.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
2 to 5 illustrate one embodiment of the present invention, which will be described below.
[0023]
In this embodiment, a slide comprising a fixed shaft 1, a slide shaft 2 that slides in a longitudinal curve line with respect to the fixed shaft 1, and a slide body 3 that slides in a longitudinal curve line with respect to the slide shaft 2. A lower load path 4 having a vertically curved shape is provided between the fixed shaft 1 and the sliding shaft 2, and an upper load path having a vertically curved shape is provided between the sliding shaft 2 and the sliding body 3. 5, and a plurality of rolling elements 10 that roll along the lower load path 4 and the upper load path 5 are disposed in the lower load path 4 and the upper load path 5. Is composed of a lower first load groove 4a and a lower second load groove 4b formed in a longitudinally curved shape so as to face the fixed shaft 1 and the slide shaft 2, respectively, and the upper load path 5 Is composed of an upper first load groove 5a and an upper second load groove 5b each having a longitudinally curved shape formed so as to face the sliding shaft 2 and the sliding body 3, respectively.
[0024]
That is, the present embodiment is not a configuration in which sliding devices that slide in a longitudinal curve line in one axial direction are simply stacked in two stages, but the sliding body of the lower sliding device and the shaft of the upper sliding device are connected. A fixed shaft 1 and a sliding body 3 are provided via an integrated sliding shaft 2, and the sliding body 3 is configured to slide in a longitudinally curved line in two axial directions.
[0025]
Therefore, the height can be reduced by the thickness of the sliding body or shaft of the conventional sliding device, and the configuration is more compact than the conventional sliding device that slides in a longitudinally curved line in the biaxial direction.
[0026]
Specifically, as shown in FIGS. 2 and 3, the fixed shaft 1 includes a flat plate-like base 1a whose upper and lower surfaces are flat surfaces, and a substantially rectangular shape in sectional view standing on the base 1a. The thing which consists of this convex 1b is employ | adopted.
[0027]
On the upper surface of the fixed shaft 1 and on both sides of the ridge 1b, lower first load portion constituting members 6 having the same length as the fixed shaft 1 in which the lower first load groove 4a is formed are attached.
[0028]
The lower surface of the lower first load member 6 is formed as a flat surface, and the lower first load groove 4a is formed on the outer surface of the lower first load member 6 with the flat surface as a processing reference surface. Has been. Specifically, the lower first load groove 4a is formed in a longitudinally curved shape having a tangent line parallel to the flat surface. Further, the inner side surface of the lower first load portion constituting member 6 is formed as a flat surface, and the lower first load groove 4a is formed with a constant depth with the inner side surface as a reference surface.
[0029]
The lower first load portion constituent member 6 is attached to the upper surface of the base portion 1a of the fixed shaft 1 with the flat surface as an attachment reference surface. Specifically, the lower first load portion constituting material 6 is attached in a state where the inner side surface thereof is in contact with the outer side surface of the ridge 1b. Therefore, by using the inner side surface of the lower first load portion component 6 as a reference surface, the distance between the outer side surface of the ridge 1b and the lower first load groove 4a is constant. Further, the upper surface of the lower first load portion constituting member 6 is set to a longitudinally curved shape surface having a longitudinal curvature similar to that of the lower load path 4.
[0030]
In the present embodiment, the lower first load portion constituent material 6 in which the lower first load groove 4a is formed on the fixed shaft 1 is provided. The first load groove 4a may be formed (so-called integral type). In this case, the number of parts and the manufacturing process can be further reduced, and the manufacturing can be performed at a lower cost.
[0031]
The fixed shaft 1 has a substantially inverted concave shape in cross-sectional view in which sleeve portions 2a and 2b are suspended on the left and right sides of a base portion 2c whose upper and lower surfaces are flat surfaces, and the upper surface has the same shape as the ridges 1b of the fixed shaft 1. A sliding shaft 2 having a ridge 2d is fitted.
[0032]
The lower second load portion constituting material 7 having the same length as that of the slide shaft 2 in which the lower second load groove 4b is formed on one side of the sleeve portions 2a and 2b on the lower surface of the slide shaft 2. Is attached.
[0033]
The upper surface of the lower second load portion constituent material 7 is formed as a flat surface, and the lower second load groove 4b is formed on the inner side surface of the lower second load portion constituent material 7 with the flat surface as a processing reference surface. Has been. Specifically, the lower second load groove 4b is formed in a longitudinally curved shape having a tangent line parallel to the flat surface. Further, the outer surface of the lower second load portion constituting member 7 is formed as a flat surface, and the lower second load groove 4b is formed to have a constant depth with the outer surface as a reference surface.
[0034]
The lower second load portion constituent material 7 is attached to the lower surface of the base portion 2c with the flat surface as an attachment reference surface. Specifically, the lower second load portion constituting material 7 is attached in a state where the outer surface thereof is in contact with the inner surfaces of the left and right sleeve portions 2a and 2b. Therefore, by using the outer surface of the lower second load portion component 7 as a reference surface, the distance between the inner surface of the left and right sleeve portions 2a and 2b and the lower second load groove 4b is constant. . Further, the lower surface of the lower second load portion constituting member 7 is set to be a flat surface leaving a predetermined length in the front and rear direction. Similarly, the lower surfaces of the sleeve portions 2a and 2b are also set to be flat surfaces leaving a predetermined length in the front and rear direction.
[0035]
Therefore, the gap between the fixed shaft 1 and the sliding shaft 2 can be made as small as possible. Therefore, the height of the present sliding device can be made as low as possible and downsizing can be achieved.
[0036]
In the present embodiment, the lower second load portion constituting material 7 in which the lower second load groove 4b is formed on the sliding shaft 2 is provided. The lower second load groove 4b may be formed (a so-called integrated type). In this case, the number of parts and the manufacturing process can be further reduced and the manufacturing can be performed at a lower cost.
[0037]
The sleeve portions 2a and 2b and the protrusions 2d of the sliding shaft 2 are set so that the extending direction intersects at 90 degrees. Therefore, in this embodiment, the sliding direction of the sliding shaft 2 is different from the sliding direction of the sliding body 3 by 90 degrees. The crossover degrees may be set to other degrees such as 45 degrees.
[0038]
On the upper surface of the sliding shaft 2 and on both sides of the ridge 2d, an upper first load portion constituting material 8 having the same length as the sliding shaft 2 formed with the upper first load groove 5a is attached.
[0039]
The lower surface of the upper first load portion component 8 is formed as a flat surface, and the upper first load groove 5a is formed on the outer surface of the upper first load portion component 8 with the flat surface as a processing reference surface. . Specifically, the upper first load groove 5a is formed in a longitudinally curved shape having a tangent line parallel to the flat surface. Further, the inner side surface of the upper first load portion constituting material 8 is formed as a flat surface, and the upper first load groove 5a is formed with a constant depth with the inner side surface as a reference surface.
[0040]
The upper first load portion constituent material 8 is attached to the upper surface of the base portion 2c of the sliding shaft 2 with the flat surface as an attachment reference surface. Specifically, the upper first load portion constituting member 8 is attached in a state in which the inner side surface thereof is in contact with the outer side surface of the ridge 2d. Therefore, by using the inner side surface of the upper first load portion constituting material 8 as a reference surface, the distance between the outer side surface of the ridge 2d and the upper first load groove 5a is constant. Further, the upper surface of the upper first load member constituting material 8 is set to a longitudinally curved shape surface having the same longitudinal curvature as that of the upper load path 5.
[0041]
In this embodiment, the sliding shaft 2 is provided with the upper first load portion constituent material 8 in which the upper first load groove 5a is formed. A single load groove 5a may be formed (a so-called integrated type). In this case, the number of parts and the manufacturing process can be further reduced, and the manufacturing can be performed at a lower cost.
[0042]
The sliding shaft 2 is fitted with a sliding body 3 having a substantially reverse concave shape in cross-section in which sleeve portions 3a and 3b are suspended on the left and right of a base portion 3c whose upper and lower surfaces are flat surfaces.
[0043]
On the lower surface of the sliding body 3 and on one side of the sleeve portions 3a and 3b, an upper second load portion constituting material 9 having the same length as the sliding body 3 in which the upper second load groove 5b is formed is attached. Yes.
[0044]
The upper surface of the upper second load portion component 9 is formed as a flat surface, and the upper second load groove 5b is formed on the inner surface of the upper second load portion component 9 with the flat surface as a processing reference surface. . Specifically, the upper second load groove 5b is formed in a longitudinally curved shape having a tangent line parallel to the flat surface. Further, the outer surface of the upper second load member constituting material 9 is formed as a flat surface, and the upper second load groove 5b is formed to have a constant depth with the outer surface as a reference surface.
[0045]
The upper second load portion constituent material 9 is attached to the lower surface of the base portion 3c with the flat surface as an attachment reference surface. Specifically, the upper second load portion constituting member 9 is attached in a state where the outer side surface thereof is in contact with the inner side surfaces of the left and right sleeve portions 3a and 3b. Therefore, by using the outer surface of the upper second load portion constituting member 9 as a reference surface, the distance between the inner surfaces of the left and right sleeve portions 3a and 3b and the upper second load groove 5b is constant. Further, the lower surface of the upper second load member constituting member 9 is set to be a flat surface leaving a predetermined length in the front and rear direction. Similarly, the lower surfaces of the sleeve portions 3a and 3b are also set to be flat surfaces leaving a predetermined length in the front and rear direction.
[0046]
Therefore, in addition to making the gap between the fixed shaft 1 and the slide shaft 2 as small as possible, the gap between the slide shaft 2 and the slide body 3 can be made as small as possible. The height of the moving device can be made as low as possible to achieve further downsizing.
[0047]
In this embodiment, the sliding body 3 is provided with the upper second load portion constituent material 9 in which the upper second load groove 5b is formed, but the upper second load is directly applied to the sliding body 3. The groove 5b may be formed (a so-called integrated type). In this case, the number of parts and the manufacturing process can be further reduced and the manufacturing can be performed at a lower cost.
[0048]
In addition, the lower first load portion constituting material 6, the lower second load portion constituting material 7, the upper first load portion constituting material 8, and the upper second load portion constituting material 9 are fixed shaft 1, sliding shaft 2 Since the reference mounting surface to be attached to the sliding body 3 is set to be a flat surface, the height can be reduced as much as possible as compared with the conventional load curve component of the longitudinally curved shape. Can be made even more compact.
[0049]
Further, a notch portion A is formed at a portion facing the lower surface of the left and right sleeve portions 2a and 2b of the sliding shaft 2 and the lower surface of the lower second load portion constituent material 7 as the fixed shaft 1, leaving a predetermined length in the front and rear. ing. Similarly, a notch portion B is formed at a portion facing the lower surface of the left and right sleeve portions 3a and 3b of the sliding body 3 and the lower surface of the upper second load portion constituting member 9 with the sliding shaft 2 left and left as a predetermined length. ing.
[0050]
Therefore, the notched portions A and B make it difficult for the sliding movement of the sliding shaft 2 and the sliding body 3 to be obstructed by the fixed shaft 1 and the sliding shaft 2, and further the sliding movement with the fixed shaft 1. The gap between the shaft 2 and the gap between the sliding shaft 2 and the sliding body 3 can be reduced, and further downsizing can be achieved.
[0051]
In the present embodiment, the lower first load portion constituting material 6 and the upper first load portion constituting material 8 and the lower second load portion constituting material 7 and the upper second load portion constituting material 9 are respectively disposed below the lower surface. A flat surface is formed as a processing reference surface of the first side load groove 4a / upper side first load groove 5a and the lower side second load groove 4b / upper side second load groove 5b. It may be formed on other surfaces such as side surfaces of the one load part constituent material 6 / upper first load part constituent material 8 and the lower second load part constituent material 7 / upper second load part constituent material 9, or these You may form in both surfaces. When the side surface is a flat surface and this flat surface is a processing reference surface, the lower first load groove 4a, the upper first load groove 5a, the lower second load groove 4b, and the upper second load groove 5b are: A vertically curved shape having a tangent line perpendicular to the flat surface is formed.
[0052]
As shown in FIG. 5, the lower first load groove 4a and the lower second load groove 4b are each formed in a substantially horizontal V shape in sectional view. Due to the lower first load groove 4a and the lower second load groove 4b, the lower load path 4 has a substantially rhomboid shape in cross section.
[0053]
A rolling element holder 11 is disposed in the lower load path 4. The rolling element holder 11 is provided with a plurality of rolling element holding windows at predetermined intervals on a plate body that hold the rolling element 10 in a state where the rolling element 10 can roll. It is inserted into a groove 12 formed at the center of the first side load groove 4a and the lower second load groove 4b. The rolling element holder 11 holds a plurality of rolling elements 10 at predetermined intervals. Moreover, this rolling element holder | retainer 11 is set to the vertical curve shape of the substantially same shape as the lower 1st load groove 4a and the lower 2nd load groove 4b.
[0054]
Similarly, as shown in FIG. 4, the upper first load groove 5a and the upper second load groove 5b are each formed in a substantially horizontal V shape in sectional view. Due to the upper first load groove 5a and the upper second load groove 5b, the upper load path 5 has a substantially rhombic shape in cross section, and the rolling element cage 11 is similarly disposed in the upper load path 5.
[0055]
In addition, as the plate body of the rolling element retainer 11, one having flexibility in the bending direction is adopted so as to be easily adapted to the longitudinally curved shape. This flexibility is caused by a flexible material such as a synthetic resin, or the plate body is composed of a fine plate body, and the fine plate body is flexibly connected via a link mechanism or the like. It may be caused by the configuration. In the figure, reference numeral 13 denotes a stopper screw for preventing the rolling element holder 11 from coming off.
[0056]
Cylindrical bodies are employed as the rolling elements 10, and these cylindrical bodies are arranged in a state where the axial cores of adjacent cylindrical bodies intersect at right angles.
[0057]
As described above, this embodiment employs a known cross roller mechanism as a sliding mechanism, but other sliding mechanisms such as a configuration in which balls are arranged as rolling elements may be employed.
[0058]
Further, in the present embodiment, the flat surface formed on the fixed shaft 1, the sliding shaft 2 and the sliding body 3, the lower first load portion constituting material 6, the lower second load portion constituting material 7, the upper first portion. It sets so that the flat surface formed in the load part structural material 8 and the upper side 2nd load part structural material 9 may become parallel. That is, it is possible to attach the fixed shaft 1 and the sliding body 3 to the member to be mounted using the flat surface formed on the fixed shaft 1, the sliding shaft 2 and the sliding body 3 as the mounting reference surface.
[0059]
Specifically, as described above, the lower first load groove 4a and the lower second load groove 4b are formed on the lower first load portion constituent material 6 or the lower second load portion constituent material 7, respectively. The upper first load groove 5a and the upper second load groove 5b are set in the upper first load portion constituting material 8 or the upper second load portion constituting material 9 with a longitudinal curve shape having a tangent line parallel to the surface. Since it is set to a longitudinally curved shape having a tangent line parallel to the reference surface, the fixed shaft 1, the sliding shaft 2 and the sliding body when assembling or when the fixed shaft 1 or the sliding body 3 is attached to a predetermined place. The flat surface parallel to the machining reference surface formed in 3 matches the curvature center of the curved line sliding track of the sliding shaft 2 and the sliding body 3 with the curvature center of the lower load path 4 and the upper load path 5. It can be used as a surface when making it.
[0060]
Therefore, it is possible to easily and accurately set the rotation center position that is important for a sliding device that slides in a longitudinally curved line. In particular, the present embodiment slides in a longitudinal curve line with respect to the biaxial direction, and is extremely difficult to adjust than the longitudinal curve line slide in a uniaxial direction, but can be easily set by using the flat surface. Is possible.
[0061]
Since the present embodiment is configured as described above, the sliding body 22 of the lower sliding device and the upper sliding device are different from the configuration in which the sliding devices that slide in the longitudinal curve line simply in one axial direction are stacked in two stages. By replacing the shaft 21 of the moving device with the sliding shaft 2 having a configuration in which these are integrated, the height can be reduced by the thickness of either the shaft 21 or the sliding body 22. Further, it is possible to realize a sliding device that slides in a longitudinally curved line with respect to a compact biaxial direction having excellent versatility, and can reduce the manufacturing process and the number of parts, and can be manufactured easily and at low cost.
[0062]
Moreover, the lower first load portion constituting material 6, the lower second load portion constituting material 7, the upper first load portion constituting material 8, and the upper second load portion constitution forming the lower load path 4 and the upper load path 5. Each of the members 9 is formed with a flat surface, and this flat surface is set as a reference mounting surface and is attached to the fixed shaft 1, the sliding shaft 2 and the sliding body 3, respectively. Unlike materials, the height can be made as low as possible, and from this point, further downsizing can be achieved.
[0063]
This is because in the conventional longitudinally-curved load portion constituent material, it was necessary to form a load groove passing through the substantially central portion of the load portion constituent material. By forming a flat surface on the upper surface or the lower surface of the load member constituent materials 6, 7, 8 and 9, the flat surface serves as a processing reference surface and is limited to the central portion of the load member constituent materials 6, 7, 8, 9 Since the load grooves 4a, 4b, 4c, and 4d can be formed at arbitrary locations, the thickness of the load portion constituent materials 6, 7, 8, and 9 can be reduced as much as possible. .
[0064]
Further, due to the notches A and B, the sliding movement of the longitudinally curved line of the sliding shaft 2 and the sliding body 3 is less likely to be hindered by the fixed shaft 1 and the sliding shaft 2. 2 and the gap between the sliding shaft 2 and the sliding body 3 can be reduced, and further downsizing can be achieved.
[0065]
In addition, it is possible to easily and accurately set the rotational center position that is important for a sliding device that slides in a longitudinally curved line.
[0066]
As described above, this embodiment is extremely practical because it can be manufactured easily and at a low cost with a compact configuration. With things Become.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view in which a part of a conventional example is cut away.
FIG. 2 is an explanatory perspective view of this embodiment.
FIG. 3 is an exploded perspective view of the present embodiment.
FIG. 4 is an explanatory cross-sectional view cut along a plane parallel to the lower load path of the present embodiment.
FIG. 5 is an explanatory cross-sectional view cut along a plane parallel to the upper load path of the embodiment.
[Explanation of symbols]
1 Fixed shaft
2 Slide shaft
3 Slider
4 Lower load path
4a Lower first load groove
4b Lower second load groove
5 Upper load path
5a Upper first load groove
5b Upper second load groove
6 Lower first load part component
7 Lower second load part component
8 Upper first load part component
9 Upper second load part component
10 Rolling elements
11 Rolling element cage

Claims

A fixed shaft, a sliding shaft for vertical curved line sliding with respect to the fixed shaft, Ri consists the sliding body for vertical curved lines slide with respect to the sliding axis, of the sliding shaft and the fixed shaft A longitudinally curved lower load path is provided between the sliding shaft and the sliding body, and a longitudinally curved upper load path is provided between the sliding shaft and the sliding body. A plurality of rolling elements that roll and move along the lower load path and the upper load path are disposed, and the lower load path is formed so as to be opposed to the fixed shaft and the sliding shaft, respectively. It is composed of a curved lower first load groove and a lower second load groove, and the upper load path is a vertically curved shape formed so as to be opposed to the sliding shaft and the sliding body, respectively. It is composed of an upper first load groove and an upper second load groove, and the lower first load groove is a lower first load portion component provided on the fixed shaft. The lower first load groove is formed in a longitudinally curved shape having a flat surface provided in the lower first load portion constituting material as a processing reference surface and having a tangent line parallel or perpendicular to the flat surface. The lower second load groove is formed in a lower second load portion constituent material provided on the fixed shaft side of the sliding shaft, and the lower second load groove is formed on the lower second load portion. A flat surface provided in the component is used as a processing reference surface, and is formed in a longitudinally curved shape having a tangent line parallel or perpendicular to the flat surface, and the upper first load groove is formed on the sliding body side of the sliding shaft. The upper first load groove is formed on the upper first load portion constituting material, and the upper first load groove has a flat surface provided on the upper first load portion constituting material as a processing reference surface, and is tangent to the flat surface in parallel or perpendicular to the flat surface. The upper second load groove is formed in the sliding body. The upper second load groove is formed with a flat surface provided in the upper second load member constituting material as a processing reference surface, and a tangent line parallel or perpendicular to the flat surface is formed. The lower first load portion constituent material, the lower second load portion constituent material, the upper first load portion constituent material, and the upper second load portion constituent material are formed by the processing standard. A manufacturing method of a sliding device configured to be mounted on a parallel flat surface parallel to the flat surface provided on the fixed shaft, the sliding shaft, and the sliding body, with the flat surface serving as a surface as an attachment reference surface. The parallel flat surfaces provided on the fixed shaft, the sliding shaft, and the sliding body are respectively slidable when the fixed shaft and the sliding body are attached to the mounted member. The curvature center of the track and the curvature of the lower load path and the upper load path A manufacturing method of a sliding device , wherein the sliding device is formed so as to be a reference surface for matching with a heart.

In the manufacturing method of the sliding device according to claim 1, the lower surface opposite to the upper surface of the fixed shaft as the lower first load portion constituting material is set to a flat surface serving as the processing reference surface and the attachment reference surface, The lower first load groove is formed in a longitudinally curved shape having a tangent line parallel to the flat surface, and an upper surface facing the lower surface of the sliding shaft as the lower second load portion constituting material The lower second load groove is set to a reference surface and a flat surface serving as the attachment reference surface, and the lower second load groove is formed in a longitudinally curved shape having a tangent line parallel to the flat surface. The lower surface opposite to the upper surface of the sliding shaft is set to be a flat surface serving as the processing reference surface and the mounting reference surface, and the upper first load groove is formed in a vertically curved shape having a tangent line parallel to the flat surface. And the sliding body as the upper second load portion constituent material The upper surface opposite to the lower surface is set to be a flat surface serving as the processing reference surface and the mounting reference surface, and the upper second load groove is formed in a vertically curved shape having a tangent line parallel to the flat surface. A manufacturing method of the sliding device.

3. The method of manufacturing a sliding device according to claim 2, wherein the fixed shaft is composed of a base portion whose upper and lower surfaces are parallel flat surfaces, and a ridge having a substantially rectangular shape in cross section provided at the base portion. The manufacturing method of the sliding device , wherein the lower first load portion constituting material is provided on each of the left and right sides of the ridge of the fixed shaft.

4. The method of manufacturing a sliding device according to claim 3, wherein sleeves are suspended from the left and right sides of the base portion having the upper and lower surfaces as the parallel flat surfaces as the sliding shaft, and a substantially strip-shaped ridge is provided on the upper surface. What is fitted on the fixed shaft is employed, and a lower second load portion constituting material is provided on one side of the sleeve portions on the lower surface of the sliding shaft, and the ridge of the sliding shaft is provided. A manufacturing method of a sliding device , wherein the upper first load portion constituting material is provided on each of the left and right sides of the sliding device.

In the manufacturing method of the sliding device according to claim 4, as the sliding body, one is adopted in which sleeve portions are suspended on the left and right sides of the base portion whose upper and lower surfaces are the parallel flat surfaces, and are fitted on the sliding shaft, A manufacturing method of a sliding device , characterized in that an upper second load portion constituting material is provided on one side of the sleeve portions on the lower surface of the sliding body.

6. The method of manufacturing a sliding device according to claim 5, wherein a notch portion is provided at a portion facing the lower surface of the left and right sleeve portions of the sliding shaft and the lower surface of the lower second load portion constituting material as the fixed shaft. A method for manufacturing a sliding device , wherein the sliding device is formed.

7. The method of manufacturing a sliding device according to claim 6, wherein a notch is formed in a portion facing the lower surface of the left and right sleeve portions of the sliding body and the lower surface of the upper second load portion constituent material as the sliding shaft. The manufacturing method of the sliding device characterized by the above-mentioned.

In the manufacturing method of the sliding device according to any one of claims 1 to 7, the lower load path and the upper load path are set in a vertically curved shape such that the extending direction intersects at 90 degrees. A method for manufacturing a sliding device.

In the manufacturing method of a sliding device given in any 1 paragraph of Claims 1-8, a rolling element maintenance machine which holds said rolling elements at predetermined intervals is arranged in said lower load path and said upper load path. A method for manufacturing a sliding device.

In the manufacturing method of a sliding device given in any 1 paragraph of Claims 1-9, a cylinder object is adopted as said rolling element, and these cylinder objects are arranged in the state where the axis line of an adjacent cylinder object intersects at right angle. A method for manufacturing a sliding device , comprising: