JP4383644B2 - Suspension device using hydraulic shock absorber - Google Patents

Suspension device using hydraulic shock absorber Download PDF

Info

Publication number
JP4383644B2
JP4383644B2 JP2000289654A JP2000289654A JP4383644B2 JP 4383644 B2 JP4383644 B2 JP 4383644B2 JP 2000289654 A JP2000289654 A JP 2000289654A JP 2000289654 A JP2000289654 A JP 2000289654A JP 4383644 B2 JP4383644 B2 JP 4383644B2
Authority
JP
Japan
Prior art keywords
coil spring
spring
shock absorber
hydraulic shock
seat surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2000289654A
Other languages
Japanese (ja)
Other versions
JP2002103940A (en
Inventor
英紀 藤井
俊彦 日高
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KYB Corp
Original Assignee
KYB Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KYB Corp filed Critical KYB Corp
Priority to JP2000289654A priority Critical patent/JP4383644B2/en
Publication of JP2002103940A publication Critical patent/JP2002103940A/en
Application granted granted Critical
Publication of JP4383644B2 publication Critical patent/JP4383644B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Vehicle Body Suspensions (AREA)
  • Springs (AREA)
  • Fluid-Damping Devices (AREA)

Description

【０００１】
【発明の属する技術分野】
この発明は、油圧緩衝器の外周にコイルスプリングを介装する油圧緩衝器を利用した懸架装置の改良に関する。
【０００２】
【従来の技術】
例えば、車両におけるサスペンション部材となるストラット型油圧緩衝器は、図４に示すようにコイルスプリング１が油圧緩衝器２の外周に介装され、このコイルスプリング１の付勢力でピストンロッド２ｂが伸長方向に付勢されている。
【０００３】
このとき、コイルスプリング１は、下端が油圧緩衝器２の外殻をなす外筒２ａ側に連設された下方のばね受３に担持されながら、上端が油圧緩衝器２を構成するピストンロッド２ｂ側に連設された上方のばね受４に係止され、上下のばね受３,４間に挟持された状態になる。このようにして、コイルスプリング１が油圧緩衝器２の外周に介装され、サスペンション部材となるストラット型油圧緩衝器が構成される。
【０００４】
ところで、油圧緩衝器２に取付ける前のコイルスプリング１は、伸びきった状態では、上記のばね受３,４間の寸法よりもかなり長い自由長を有しており、これを上記のばね受３,４間に介装する際には、外力をかけて短縮しなければならない。
【０００５】
そして、コイルスプリング１を所定の短縮状態に収縮させるについては、例えば、図５に示すように、コイルスプリング１の中間部１ａ，１ｂを治具（図示せず）を利用して収縮させ、この状態のまま、コイルスプリング１の下端を下方のばね受３に載置する。
【０００６】
コイルスプリング１の下端を下方のばね受３に載置した状態で、ピストンロッド２ｂ側に上方のばね受４を連設し、その後、ピストンロッド２ｂを徐々に押し下げながら、コイルスプリング１の上端をピストンロッド２ｂ側に連設された上方のばね受４の座面に当接させる。
【０００７】
その後、コイルスプリング１の上端を上方のばね受４に当接させたまま、コイルスプリング１を収縮させている治具を緩めてコイルスプリング１を徐々に伸長させ、コイルスプリング１を油圧緩衝器２の外周に介装する。
【０００８】
最伸長状態の油圧緩衝器の上下のばね受４，３間にコイルスプリング１を組み込んだストラット型油圧緩衝器を車体に装着した場合、油圧緩衝器の外筒の下端に装着された車輪に負荷される車体重量によって発生する曲げモーメントを小さくするため、車体に装着する前のコイルスプリング１を組み込んだ状態の油圧緩衝器には、油圧緩衝器２の外周に傾斜した状態で介装されたコイルスプリング１により、上記曲げモーメントをキャンセルする逆向きの曲げモーメントを付与するのが一般的である。
【０００９】
このため、コイルスプリング１の軸線Ｃを油圧緩衝器２の軸線Ｃｓに対して傾斜した状態に取付けるので、上記のばね受３,４は油圧緩衝器２の軸線Ｃｓに対して傾斜した状態で連設されている。
【００１０】
【発明が解決しようとする課題】
コイルスプリング１の下端を下方のばね受３に載置した状態で、ピストンロッド２ｂ側に連設された上方のばね受４を徐々に押し下げながら、コイルスプリング１の上端をばね受４の座面に当接させる際には、上記逆向きの曲げモーメントを付与するため、図５に示すように、コイルスプリング１の上端が上方のばね受４の座面に対してずれ、その一部が座面の外側にはみ出している。
【００１１】
このため、コイルスプリング１の上端を上方のばね受４の座面に当接させる際に両者を位置合わせするためには、コイルスプリング１の中間部１ａ，１ｂを一様に収縮したときの軸線Ｃａを、軸線Ｃの如く修正しコイルスプリング１の上端を上方のばね受４の座面側に移動させる必要がある。
【００１２】
コイルスプリング１の傾斜を軸線Ｃの如く修正するには、コイルスプリング１を収縮する際に、座面の外側にはみ出している図５に示す右側の中間部１ａの収縮量よりも、はみ出し側より１８０度ずれた左側の中間部１ｂの収縮量を大きくする方法がある。
【００１３】
しかし、この方法では、螺旋状に巻かれ車種毎に異なるコイルスプリング１の線間距離によって、コイルスプリング１の左右の収縮量の差を調整する必要がある。この煩わしさを避けるため、通常は一様に圧縮して左右の収縮量を同じにすることが多い。
【００１４】
一様に収縮したコイルスプリング１の上端を上方のばね受４の座面側に移動した状態で、上方のばね受４を押し下げ、コイルスプリング１の上端を上方のばね受４の座面に当接させると、当接部以外のコイルスプリング１の上端及び下端は、上方のばね受４及び下方のばね受３から浮き上がってしまうので、コイルスプリング１を上方のばね受４及び下方のばね受３の座面の所定位置に安定させつつ収容するのは容易ではない。
【００１５】
本発明は、以上のような実情に鑑みてなされたものであり、その目的とするところは、油圧緩衝器の外周にコイルスプリングを介装する際の作業性を良くしてコストの低減を諮り、特に、ストラット型油圧緩衝器に最適となるコイルスプリングの取付け構造を提供することである。
【００１６】
【課題を解決するための手段】
上記課題を解決するための第一の手段は、油圧緩衝器の外殻をなす外筒とピストンロッドとに下方のばね受と上方のばね受とをそれぞれ設け、上記各ばね受は螺旋状の座面と座面の外端又は内端に沿って起立する案内部とを有し、油圧緩衝器に対してオフセットしたコイルスプリングを収縮状態に維持しながら当該コイルスプリングの下端部を下方のばね受の座面上に載置するとともに、コイルスプリングの上端部を上方のばね受に対向するように傾斜状態を修正し、次いでピストンロッドと連動して上方のばね受を押し下げながらコイルスプリングの上端部を上方のばね受の座面に当接させている油圧緩衝器を利用した懸架装置において、コイルスプリングの傾斜状態を修正したとき浮き上がる上下端部の任意巾の部位に対応する案内部をコイルスプリングの下端及び上端が当接している部分の案内部を基準にしてコイルスプリングの座面からの浮き上がり高さに応じて徐々に連続的に高くし、コイルスプリングの組み付け時に浮き上った上記部位が各々の座面からはみ出すのを防止することである。
【００１７】
上記の課題を解決するため第二の手段は、油圧緩衝器の外殻をなす外筒とピストンロッドとに下方のばね受と上方のばね受とをそれぞれ設け、上記各ばね受は螺旋状の座面と座面の外端又は内端に沿って起立する案内部とを有し、油圧緩衝器に対してオフセットしたコイルスプリングを収縮状態に維持しながら当該コイルスプリングの下端部を下方のばね受の座面上に載置するとともに、コイルスプリングの上端部を上方のばね受に対向するように傾斜状態を修正し、次いでピストンロッドと連動して上方のばね受を押し下げながらコイルスプリングの上端部を上方のばね受の座面に当接させている油圧緩衝器を利用した懸架装置において、コイルスプリングの傾斜状態を修正したとき浮き上がる上下端部の任意巾の部位に対応する案内部をコイルスプリングの座面への当接部を基準にして上記座面から浮き上がり高さに応じて部分的に高くし、コイルスプリングの組み付け時に浮き上った上記部位が各々の座面からはみ出すのを防止することである。
【００１８】
このとき、コイルスプリングの当接部を基準にした座面の案内部は、コイルスプリングの浮き上がり高さに応じて連続的に高くしてもよいし、コイルスプリングの当接部を基準に座面を少なくともほぼ３等分した位置の座面の案内部を、コイルスプリングの浮き上がり高さに応じて当接部の案内部よりも部分的に高くしてもよい。
【００１９】
【発明の実施の形態】
本発明は、油圧緩衝器２の外周にコイルスプリングを介装してストラット型油圧緩衝器とする際に、コイルスプリングの上端を上方のばね受の座面に合致させる手段に関するものである。
【００２０】
まず、本発明に係わる油圧緩衝器の第１実施形態を図１に基づいて説明するが、従来技術と同一部分には同一の符号を用い、特に必要のない部分については説明を省略する。
【００２１】
この発明によるストラット型油圧緩衝器にあっても、コイルスプリング１は、前記した図４に示す従来例と同じである。また、油圧緩衝器２は、前記従来技術と同様に車両におけるサスペンション部材となるとともに、上下のばね受１４，１３の間には、コイルスプリング１が油圧緩衝器２の軸線に対して傾斜した状態に介装されている。
【００２２】
因みに、コイルスプリング１を油圧緩衝器２の外周に介装する際には、前記従来例の場合と同様に、図示しない治具を利用してコイルスプリング１の中間部１ａ，１ｂを収縮させ所定の短縮状態に維持されたコイルスプリング１を、油圧緩衝器２の外殻をなす外筒２ａ側に連設された下方のばね受１３に載置した後に、コイルスプリング１の上端が、車体側への取り付け部材５と共にピストンロッド２ｂ側に連設される上方のばね受１４に係止される。
【００２３】
上記下方のばね受１３は、外筒２ａ側に固定される筒状取り付け部１３Ｄと、筒状取り付け部１３Ｄの上方に一体に連設した接続部１３Ｅと、接続部１３Ｅの上端に一体に設けた螺旋状の座面１３Ｃと、座面１３Ｃの外端に沿って起立する案内部１３Ａ，１３Ｂとを備えた漏斗状に形成されている。筒状取り付け部１３Ｄには、その一部が切欠かれ図示を省略した水抜き部が形成されている。
【００２４】
同様に上方のばね受１４は、取付け部材５の下側に配設された軸受け５Ｂの下側に結合され、取付け部材５に対して回動自在に支持されるとともに、軸受け５Ｂの下側に結合される基端部１４Ｄと、基端部１４Ｄの下方に一体に設けた接続部１４Ｅと、接続部１４Ｅの下端に一体に設けた螺旋状の座面１４Ｃと、座面１４Ｃの外端に沿って起立する連設した案内部１４Ｂとを備えた逆漏斗状に形成されている。上記取付け部材５は、取付けボルト５Ａを介して車体に取り付けられる。
【００２５】
コイルスプリング１の短縮状態の全長は、油圧緩衝器２が最伸長状態の上下のばね受１４，１３間の寸法より小さくされ、この短縮状態のままコイルスプリング１の下端が下方のばね受１３に載置される。
【００２６】
コイルスプリング１の上端は、前記従来技術でも説明したように上方のばね受１４の座面１４Ｃからずれているので、このままでは、コイルスプリング１の上端を上方のばね受１４の座面１４Ｃ側に収容することはできない。
【００２７】
上述した組み付け順とは逆に、コイルスプリング１を上方のばね受１４に載置し、下方のばね受１３の座面１３Ｃに収容する場合を考えれば分かるように、下方のばね受１３及び上方のばね受１４は、ともに上記の問題は共通であるので、以下、この問題を解決する手段を、図１に示す本発明の第１実施形態に基づき、下方のばね受１３（上方のばね受１４）の形式でまとめて説明する。
【００２８】
短縮状態のコイルスプリング１の下端（上端）が下方のばね受１３（上方のばね受１４）に載置され、コイルスプリング１の上端（下端）をばね受１４（１３）の座面１４Ｃ（１３Ｃ）側の所定位置に収容するには、まず、ばね受１４（１３）の座面１４Ｃ（１３Ｃ）から外側にはみ出しているコイルスプリング１の上端（下端）を、ばね受１４（１３）の座面１４Ｃ（１３Ｃ）側に引き戻し、この状態のままピストンロッド２ｂを押し下げて、ばね受１４（１３）の座面１４Ｃ（１３Ｃ）にコイルスプリング１の上端（下端）を合致させて当接させる。
【００２９】
この状態では、ばね受１３（１４）の座面１３Ｃ（１４Ｃ）に対してコイルスプリング１の一部は着座しているが、これ以外の部分は座面から浮き上がっている。
【００３０】
この状態で、コイルスプリング１がばね受１３（１４）の座面１３Ｃ（１４Ｃ）から再はみ出しするのを防止するには、ばね受１３（１４）の座面１３Ｃ（１４Ｃ）の外周側に設けられコイルスプリング１の脱落を防止する案内部の高さを、コイルスプリング１の下端及び上端が当接している部分の案内部１３Ａ（１４Ａ）を基準にして、当接していない部分の案内部１３Ｂ（１４Ｂ）を、コイルスプリング１の座面１３Ｃ（１４Ｃ）からの浮き上り高さに応じて徐々に連続的に高くして、コイルスプリング１の上端及び下端を、ばね受１３（１４）の座面１３Ｃ（１４Ｃ）からずれないように案内すればよい。
【００３１】
上記第１実施形態では案内部の高さを連続的に変化させているが、案内部の高さは、下方のばね受２３の座面２３Ｃを上方からみた図２（Ｂ）に示す第２実施形態の様に、コイルスプリング１の座面への当接部Ｒを基準にして、例えば座面２３Ｃをほぼ３等分した基準部以外の２点Ｓ，Ｔに対応する案内部２３Ｂを、座面２３Ｃからの浮き上り高さに応じて部分的に高くしてもよい。
【００３２】
コイルスプリング１は案内部２３Ｂにより外側から３点で座面２３Ｃ側に拘束されるため、コイルスプリング１の下端及び上端をばね受２３（２４）の座面からずれないように案内することができる。
【００３３】
部分的に高くする位置は、座面２３Ｃを少なくともほぼ３等分する２点とすればよいが、座面２３Ｃの形状によっては、ｎ＝４，５…等分する（ｎ−１）点とすればよい。
【００３４】
上述した第１及び第２実施形態は、いずれもコイルスプリング１の脱落を防止する案内部がばね受１３，２３（１４，２４）の座面１３Ｃ，２３Ｃ（１４Ｃ，２４Ｃ）の外周側に設けられているが、図３に示す本発明の第３実施形態のように、案内部をばね受３３（３４）の座面３３Ｃ（３４Ｃ）の内周側に設けても同様な効果を得ることができる。
【００３５】
上記第３実施形態の下方のばね受３３は、外筒２ａ側に固定される筒状取り付け部３３Ｄと、筒状取り付け部３３Ｄの下方に一体に連設した接続部３３Ｅと、接続部３３Ｅの下側に連続的に設けられた案内部３３Ａ，３３Ｂと、案内部３３Ａ，３３Ｂの下端に一体に設けた螺旋状の座面３３Ｃとを備えた逆漏斗状に形成されている。
【００３６】
同様に上方のばね受３４は、取付け部材５の下側に配設された軸受け５Ｂの下側に結合され、取付け部材５に対して回動自在に支持されるとともに、軸受け５Ｂの下側に結合される基端部３４Ｄと、基端部３４Ｄの下方に一体に設けた接続部３４Ｅと、接続部３４Ｅの下端から連続的に起立する案内部３４Ａ，３４Ｂと、案内部３４Ａ，３４Ｂの上端に一体に設けた螺旋状の座面３４Ｃとを備えた逆漏斗状に形成されている。
【００３７】
上記のように形成された下方のばね受３３（上方のばね受３４）を、コイルスプリング１の下端及び上端が当接している部分の案内部３３Ａ（３４Ａ）を基準にして、当接していない部分の案内部３３Ｂ（３４Ｂ）を、コイルスプリング１の座面３３Ｃ（３４Ｃ）からの浮き上り高さに応じて徐々に連続的に高くして、コイルスプリング１の上端及び下端を、ばね受３３（３４）の座面３３Ｃ（３４Ｃ）からずれないように案内すればよい。
【００３８】
案内部の高さは、上記第３実施形態のように座面３３Ｃ（３４Ｃ）からの浮き上り高さに応じて連続的に高くしなくても、前記第２実施形態と同様に、コイルスプリング１の座面への当接部Ｒを基準にして、例えば座面３３Ｃ（３４Ｃ）をほぼ３等分した基準部以外の２点Ｓ，Ｔに対応する案内部を、座面３３Ｃ（３４Ｃ）からの浮き上り高さに応じて部分的に高くしてもよい。
【００３９】
上記第３実施形態の上方のばね受３４は、前記第１，第２実施形態の上方のばね受１４，２４に置き替えることもできる。この場合、下方のばね受３３は、筒状取り付け部３３Ｄの外筒２ａ側への固定位置を、コイルスプリング１のセット長に合わせて調整する。
【００４０】
同様に前記第１，第２実施形態の上方のばね受１４，２４は、上記第３実施形態の上方のばね受３４に置き替えることもできる。この場合、下方のばね受１３は、筒状取り付け部１３Ｄの外筒２ａ側への固定位置を、コイルスプリング１のセット長に合わせて調整する。
【００４１】
いずれの実施形態においても、上記状態からコイルスプリング１の短縮状態を緩やかに解除すれば、コイルスプリング１は、ばね受１３，２３，３３（１４，２４，３４）の案内部により、座面１３Ｃ，２３Ｃ，３３Ｃ（１４Ｃ，２４Ｃ，３４Ｃ）側に拘束されているため、コイルスプリング１をばね受の座面１３Ｃ，２３Ｃ，３３Ｃ（１４Ｃ，２４Ｃ，３４Ｃ）の所定位置に着座させ、コイルスプリング１を油圧緩衝器２の外周に介装することができる。
【００４２】
因みにコイルスプリング１を介装後、ばね受１３，２３，３３（１４，２４，３４）には、車体重量を支持するコイルスプリング１の大きな反発力が加わるので、油圧緩衝器２は最伸長状態になる。
【００４３】
【発明の効果】
以上詳述したように、本発明の第１，第２及び第３実施形態は効果が類似しているので、以下、発明の効果を、第１及び第３（第２）実施形態の形式でまとめて説明する。いずれの実施形態においても、コイルスプリングを緩衝器本体の外周に介装するに際して、治具により短縮した状態のコイルスプリングを下方のばね受に載置したときに、上方のばね受の座面から外側にはみ出しているコイルスプリングの上端を座面側に引き戻したまま、ピストンロッドを押し下げ上方のばね受の座面にコイルスプリングの上端を合致させて当接させる。
【００４４】
この状態でコイルスプリングの下端及び上端が当接している部分の座面の案内部を基準にして、当接していない部分の座面の案内部を、座面からの浮き上り高さに応じて徐々に連続的に高くする（座面を少なくともほぼ３等分した位置の２箇所の案内部の高さを部分的に高くする）。
【００４５】
この状態からコイルスプリングの短縮状態を緩やかに解除すれば、コイルスプリングは案内部により座面側に拘束されているため、コイルスプリングをばね受の座面の所定位置に着座させ、コイルスプリングを油圧緩衝器の外周に介装することができる。
【図面の簡単な説明】
【図１】（Ａ）本発明の第１実施形態に係わる油圧緩衝器の一部断面図である。
（Ｂ）第１実施形態に係わる下方のばね受の座面の平面図である。
【図２】（Ａ）本発明の第２実施形態に係わる油圧緩衝器の一部断面図である。
（Ｂ）第２実施形態に係わる下方のばね受の座面の平面図である。
【図３】（Ａ）本発明の第３実施形態に係わる油圧緩衝器の一部断面図である。
（Ｂ）第３実施形態に係わる下方のばね受の座面の平面図である。
【図４】コイルスプリングを外周に介装した従来の油圧緩衝器である。
【図５】短縮したコイルスプリングの下端を下方のばね受に載置した状態図である。
【符号の説明】
１ コイルスプリング
２ 油圧緩衝器
２ａ 外筒
２ｂ ピストンロッド
１３，２３，３３ 下方のばね受
１４，２４，３４ 上方のばね受
１３Ａ，２３Ａ，３３Ａ 当接部を基準にした座面の案内部（下方のばね受）
１３Ｂ，２３Ｂ，３３Ｂ 浮き上がり高さに応じて高くした座面の案内部（下方のばね受）
１３Ｃ，２３Ｃ，３３Ｃ 下方のばね受の座面
１４Ａ，２４Ａ，３４Ａ 当接部を基準にした座面の案内部（上方のばね受）
１４Ｂ，２４Ｂ，３４Ｂ 浮き上がり高さに応じて高くした座面の案内部（上方のばね受）
１４Ｃ，２４Ｃ，３４Ｃ 上方のばね受の座面
Ｃａ，Ｃ 傾斜状態[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a suspension device using a hydraulic shock absorber having a coil spring interposed on the outer periphery of the hydraulic shock absorber.
[0002]
[Prior art]
For example, in a strut type hydraulic shock absorber serving as a suspension member in a vehicle, as shown in FIG. 4, a coil spring 1 is interposed on the outer periphery of the hydraulic shock absorber 2, and the piston rod 2 b is extended in the extending direction by the urging force of the coil spring 1. Is being energized.
[0003]
At this time, the coil spring 1 is supported by a lower spring support 3 connected to the outer cylinder 2 a side whose lower end forms the outer shell of the hydraulic shock absorber 2, while the upper end of the coil spring 1 is a piston rod 2 b that constitutes the hydraulic shock absorber 2. The upper spring receiver 4 is connected to the upper side and is held between the upper and lower spring receivers 3 and 4. In this way, the coil spring 1 is interposed on the outer periphery of the hydraulic shock absorber 2 to constitute a strut type hydraulic shock absorber that serves as a suspension member.
[0004]
By the way, the coil spring 1 before being attached to the hydraulic shock absorber 2 has a free length considerably longer than the dimension between the spring receivers 3 and 4 in the fully extended state. , 4 must be shortened by applying external force.
[0005]
And about shrinking the coil spring 1 to a predetermined shortened state, for example, as shown in FIG. 5, the intermediate portions 1a and 1b of the coil spring 1 are shrunk using a jig (not shown). The lower end of the coil spring 1 is placed on the lower spring receiver 3 in the state.
[0006]
With the lower end of the coil spring 1 placed on the lower spring receiver 3, the upper spring receiver 4 is connected to the piston rod 2b side, and then the upper end of the coil spring 1 is moved while gradually lowering the piston rod 2b. It is made to contact | abut to the seat surface of the upper spring receiver 4 provided in a row by the piston rod 2b side.
[0007]
Thereafter, with the upper end of the coil spring 1 kept in contact with the upper spring receiver 4, the jig for contracting the coil spring 1 is loosened, the coil spring 1 is gradually extended, and the coil spring 1 is moved to the hydraulic shock absorber 2. The outer circumference of the
[0008]
When a strut type hydraulic shock absorber incorporating the coil spring 1 between the upper and lower spring receivers 4 and 3 of the most extended hydraulic shock absorber is mounted on the vehicle body, a load is applied to the wheel mounted on the lower end of the outer cylinder of the hydraulic shock absorber. In order to reduce the bending moment generated by the weight of the vehicle body, the hydraulic shock absorber in which the coil spring 1 before being mounted on the vehicle body is incorporated has a coil interposed in a slanted manner on the outer periphery of the hydraulic shock absorber 2. Generally, the spring 1 applies a reverse bending moment that cancels the bending moment.
[0009]
For this reason, since the axis C of the coil spring 1 is attached in a state inclined with respect to the axis Cs of the hydraulic shock absorber 2, the spring receivers 3 and 4 are connected in a state inclined with respect to the axis Cs of the hydraulic shock absorber 2. It is installed.
[0010]
[Problems to be solved by the invention]
While the lower end of the coil spring 1 is placed on the lower spring receiver 3, the upper spring receiver 4 connected to the piston rod 2 b side is gradually pushed down, while the upper end of the coil spring 1 is placed on the seating surface of the spring receiver 4. In order to apply the bending moment in the reverse direction, the upper end of the coil spring 1 is displaced with respect to the seat surface of the upper spring receiver 4 and a part thereof is seated as shown in FIG. It protrudes outside the surface.
[0011]
For this reason, in order to align both when the upper end of the coil spring 1 is brought into contact with the seat surface of the upper spring receiver 4, the axis when the intermediate portions 1a and 1b of the coil spring 1 are uniformly contracted is used. It is necessary to correct Ca as shown by the axis C and move the upper end of the coil spring 1 to the seat surface side of the upper spring receiver 4.
[0012]
In order to correct the inclination of the coil spring 1 as shown by the axis C, when the coil spring 1 is contracted, the amount of contraction of the right intermediate portion 1a shown in FIG. There is a method of increasing the contraction amount of the left intermediate portion 1b shifted by 180 degrees.
[0013]
However, in this method, it is necessary to adjust the difference between the left and right contraction amounts of the coil spring 1 according to the line-to-line distance of the coil spring 1 wound spirally and different for each vehicle type. In order to avoid this inconvenience, it is often the case that the amount of contraction on the left and right is usually the same by compressing uniformly.
[0014]
With the upper end of the uniformly contracted coil spring 1 moved to the seat surface side of the upper spring receiver 4, the upper spring receiver 4 is pushed down so that the upper end of the coil spring 1 contacts the seat surface of the upper spring receiver 4. When the contact is made, the upper and lower ends of the coil spring 1 other than the contact portion are lifted from the upper spring receiver 4 and the lower spring receiver 3, so that the coil spring 1 is moved to the upper spring receiver 4 and the lower spring receiver 3. It is not easy to house it in a stable position on the seating surface.
[0015]
The present invention has been made in view of the above circumstances, and its object is to improve the workability when a coil spring is interposed on the outer periphery of a hydraulic shock absorber and to reduce the cost. In particular, it is to provide a mounting structure of a coil spring that is optimal for a strut type hydraulic shock absorber.
[0016]
[Means for Solving the Problems]
A first means for solving the above problem is that a lower spring receiver and an upper spring receiver are provided on an outer cylinder and a piston rod that form an outer shell of a hydraulic shock absorber, and each of the spring receivers is formed in a spiral shape. The lower end of the coil spring is a lower spring while maintaining the coil spring offset with respect to the hydraulic shock absorber in a contracted state, having a seat surface and a guide portion standing along the outer end or inner end of the seat surface. The coil spring is placed on the seat surface, and the upper end of the coil spring is corrected so that the upper end of the coil spring faces the upper spring receiver, and then the upper end of the coil spring is lowered while pushing down the upper spring receiver in conjunction with the piston rod. in the suspension system using a hydraulic shock absorber which part causes a contact with the seat surface of the upper spring bearing, a guide portion corresponding to the site of any width of the upper and lower ends floated when modifying the inclination of the coil spring The above mentioned that the lower end of the coil spring and the guide part of the portion where the upper end is in contact with each other are gradually increased in accordance with the height of the coil spring raised from the seating surface and floated when the coil spring is assembled. This is to prevent the part from protruding from each seating surface.
[0017]
In order to solve the above-mentioned problem, the second means is to provide a lower spring receiver and an upper spring receiver on the outer cylinder and piston rod forming the outer shell of the hydraulic shock absorber. The lower end of the coil spring is a lower spring while maintaining the coil spring offset with respect to the hydraulic shock absorber in a contracted state, having a seat surface and a guide portion standing along the outer end or inner end of the seat surface. The coil spring is placed on the seat surface, and the upper end of the coil spring is corrected so that the upper end of the coil spring faces the upper spring receiver, and then the upper end of the coil spring is lowered while pushing down the upper spring receiver in conjunction with the piston rod. In a suspension device using a hydraulic shock absorber in which the portion is in contact with the seat surface of the upper spring support, a guide portion corresponding to an arbitrary width portion of the upper and lower end portions that rises when the inclination state of the coil spring is corrected. Based on the contact portion of the spring spring to the seating surface, the height is raised partially from the seating surface according to the height, and the above-mentioned part that floats when the coil spring is assembled protrudes from each seating surface. Is to prevent.
[0018]
At this time, the guide portion of the seat surface based on the contact portion of the coil spring may be continuously increased according to the rising height of the coil spring, or the seat surface based on the contact portion of the coil spring. The guide portion of the seating surface at a position obtained by dividing at least approximately three portions may be partially higher than the guide portion of the contact portion according to the height of the coil spring.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a means for aligning the upper end of a coil spring with the seat surface of an upper spring receiver when a coil spring is interposed on the outer periphery of the hydraulic shock absorber 2 to form a strut type hydraulic shock absorber.
[0020]
First, a first embodiment of a hydraulic shock absorber according to the present invention will be described with reference to FIG. 1, but the same reference numerals are used for the same parts as in the prior art, and descriptions of parts that are not particularly necessary will be omitted.
[0021]
Even in the strut type hydraulic shock absorber according to the present invention, the coil spring 1 is the same as the conventional example shown in FIG. The hydraulic shock absorber 2 is a suspension member in the vehicle as in the prior art, and the coil spring 1 is inclined with respect to the axis of the hydraulic shock absorber 2 between the upper and lower spring receivers 14 and 13. Is intervened.
[0022]
Incidentally, when the coil spring 1 is interposed on the outer periphery of the hydraulic shock absorber 2, the intermediate portions 1a and 1b of the coil spring 1 are contracted using a jig (not shown) in the same manner as in the conventional example. After the coil spring 1 maintained in the shortened state is placed on the lower spring receiver 13 connected to the outer cylinder 2a forming the outer shell of the hydraulic shock absorber 2, the upper end of the coil spring 1 is It is latched by the upper spring receiver 14 provided in a row on the piston rod 2b side together with the attachment member 5 to the front.
[0023]
The lower spring receiver 13 is provided integrally with a cylindrical attachment portion 13D fixed to the outer cylinder 2a side, a connection portion 13E integrally provided above the cylindrical attachment portion 13D, and an upper end of the connection portion 13E. It is formed in a funnel shape having a spiral seat surface 13C and guide portions 13A and 13B that stand along the outer end of the seat surface 13C. The cylindrical attachment portion 13D is formed with a water drain portion that is partially cut away and not shown.
[0024]
Similarly, the upper spring bearing 14 is coupled to the lower side of the bearing 5B disposed on the lower side of the mounting member 5, is supported rotatably with respect to the mounting member 5, and is disposed below the bearing 5B. A base end portion 14D to be coupled, a connection portion 14E provided integrally below the base end portion 14D, a spiral seating surface 14C integrally provided at the lower end of the connection portion 14E, and an outer end of the seating surface 14C It is formed in the shape of a reverse funnel provided with a continuous guide portion 14 </ b> B that stands up along. The attachment member 5 is attached to the vehicle body via attachment bolts 5A.
[0025]
The total length of the shortened state of the coil spring 1 is made smaller than the dimension between the upper and lower spring receivers 14 and 13 when the hydraulic shock absorber 2 is in its maximum extension state, and the lower end of the coil spring 1 becomes the lower spring receiver 13 in this shortened state. Placed.
[0026]
Since the upper end of the coil spring 1 is deviated from the seating surface 14C of the upper spring receiver 14 as described in the above prior art, the upper end of the coil spring 1 is moved to the seating surface 14C side of the upper spring receiver 14 as it is. Cannot be accommodated.
[0027]
Contrary to the assembly order described above, the coil spring 1 is placed on the upper spring receiver 14 and is accommodated in the seating surface 13C of the lower spring receiver 13, so that the lower spring receiver 13 and upper Since the above-mentioned problem is common to the spring receivers 14 of the present invention, the means for solving this problem will be described below based on the first embodiment of the present invention shown in FIG. 14) will be collectively described.
[0028]
The lower end (upper end) of the shortened coil spring 1 is placed on the lower spring receiver 13 (upper spring receiver 14), and the upper end (lower end) of the coil spring 1 is seated on the seat surface 14C (13C) of the spring receiver 14 (13). The upper end (lower end) of the coil spring 1 that protrudes outward from the seating surface 14C (13C) of the spring receiver 14 (13) is first placed on the seat of the spring receiver 14 (13). Pull back to the surface 14C (13C) side, the piston rod 2b is pushed down in this state, and the upper end (lower end) of the coil spring 1 is brought into contact with the seating surface 14C (13C) of the spring receiver 14 (13).
[0029]
In this state, a part of the coil spring 1 is seated on the seating surface 13C (14C) of the spring receiver 13 (14), but the other part is lifted from the seating surface.
[0030]
In this state, in order to prevent the coil spring 1 from protruding again from the seat surface 13C (14C) of the spring receiver 13 (14), it is provided on the outer peripheral side of the seat surface 13C (14C) of the spring receiver 13 (14). The height of the guide portion that prevents the coil spring 1 from falling off is determined based on the guide portion 13A (14A) of the portion where the lower end and the upper end of the coil spring 1 are in contact with each other. (14B) is gradually increased continuously according to the height of the coil spring 1 from the seating surface 13C (14C), and the upper end and the lower end of the coil spring 1 are seated on the spring receiver 13 (14). What is necessary is just to guide so that it may not slip | deviate from the surface 13C (14C).
[0031]
In the first embodiment, the height of the guide portion is continuously changed. The height of the guide portion is the second shown in FIG. 2B when the seat surface 23C of the lower spring receiver 23 is viewed from above. As in the embodiment, the guide portion 23B corresponding to the two points S and T other than the reference portion obtained by dividing the seat surface 23C into approximately three equal parts, for example, with reference to the contact portion R of the coil spring 1 with the seat surface. You may make it partially high according to the floating height from the seat surface 23C.
[0032]
Since the coil spring 1 is restrained to the seating surface 23C side by the guide portion 23B at three points from the outside, the lower end and the upper end of the coil spring 1 can be guided so as not to deviate from the seating surface of the spring receiver 23 (24). .
[0033]
The partially raised position may be two points that divide the seating surface 23C into at least approximately three equal parts, but depending on the shape of the seating surface 23C, n = 4, 5,. do it.
[0034]
In both the first and second embodiments described above, the guide portion for preventing the coil spring 1 from falling off is provided on the outer peripheral side of the seat surfaces 13C and 23C (14C and 24C) of the spring receivers 13 and 23 (14 and 24). However, as in the third embodiment of the present invention shown in FIG. 3, the same effect can be obtained even if the guide portion is provided on the inner peripheral side of the seating surface 33C (34C) of the spring receiver 33 (34). Can do.
[0035]
The lower spring receiver 33 of the third embodiment includes a cylindrical attachment portion 33D fixed to the outer cylinder 2a side, a connection portion 33E integrally provided below the cylindrical attachment portion 33D, and a connection portion 33E. It is formed in a reverse funnel shape provided with guide portions 33A and 33B provided continuously on the lower side and a spiral seating surface 33C provided integrally with the lower ends of the guide portions 33A and 33B.
[0036]
Similarly, the upper spring bearing 34 is coupled to the lower side of the bearing 5B disposed on the lower side of the mounting member 5, is supported rotatably with respect to the mounting member 5, and is disposed below the bearing 5B. A base end portion 34D to be coupled, a connection portion 34E integrally provided below the base end portion 34D, guide portions 34A and 34B standing up continuously from a lower end of the connection portion 34E, and upper ends of the guide portions 34A and 34B Are formed in a reverse funnel shape having a spiral seating surface 34C provided integrally therewith.
[0037]
The lower spring receiver 33 (upper spring receiver 34) formed as described above is not in contact with the guide portion 33A (34A) of the portion where the lower end and upper end of the coil spring 1 are in contact with each other. The guide portion 33B (34B) of the portion is gradually and continuously increased in accordance with the height of the coil spring 1 from the seating surface 33C (34C), and the upper end and the lower end of the coil spring 1 are spring-loaded 33. What is necessary is just to guide so that it may not slip | deviate from the seating surface 33C (34C) of (34).
[0038]
Similar to the second embodiment, the height of the guide portion does not need to be continuously increased according to the height of the lift from the seating surface 33C (34C) as in the third embodiment. For example, a guide portion corresponding to two points S and T other than the reference portion obtained by dividing the seat surface 33C (34C) into approximately three equal parts with respect to the contact portion R of the seat surface 33C (34C). The height may be partially increased depending on the height of the lift from.
[0039]
The upper spring receiver 34 of the third embodiment can be replaced with the upper spring receivers 14 and 24 of the first and second embodiments. In this case, the lower spring receiver 33 adjusts the fixing position of the cylindrical attachment portion 33 </ b> D to the outer cylinder 2 a side according to the set length of the coil spring 1.
[0040]
Similarly, the upper spring receivers 14 and 24 of the first and second embodiments can be replaced with the upper spring receiver 34 of the third embodiment. In this case, the lower spring receiver 13 adjusts the fixing position of the cylindrical attachment portion 13 </ b> D to the outer cylinder 2 a side according to the set length of the coil spring 1.
[0041]
In any embodiment, if the shortened state of the coil spring 1 is gently released from the above state, the coil spring 1 is supported by the guide portions of the spring receivers 13, 23, 33 (14, 24, 34). , 23C, 33C (14C, 24C, 34C), the coil spring 1 is seated at a predetermined position of the seat surface 13C, 23C, 33C (14C, 24C, 34C) of the spring receiver, and the coil spring 1 Can be interposed on the outer periphery of the hydraulic shock absorber 2.
[0042]
Incidentally, since the large repulsive force of the coil spring 1 that supports the weight of the vehicle body is applied to the spring receivers 13, 23, 33 (14, 24, 34) after the coil spring 1 is interposed, the hydraulic shock absorber 2 is in the most extended state. become.
[0043]
【The invention's effect】
As described above in detail, the effects of the first, second, and third embodiments of the present invention are similar. Therefore, the effects of the invention will be described below in the form of the first and third (second) embodiments. It will be explained together. In any embodiment, when the coil spring is placed on the outer periphery of the shock absorber body, when the coil spring shortened by the jig is placed on the lower spring receiver, the seat surface of the upper spring receiver is used. While the upper end of the coil spring protruding outward is pulled back to the seat surface side, the piston rod is pushed down to bring the upper end of the coil spring into contact with the seat surface of the upper spring receiver.
[0044]
In this state, the guide portion of the seating surface where the lower end and the upper end of the coil spring are in contact is used as a reference according to the height of the lift from the seating surface. Increasing gradually and continuously (partially increasing the height of the two guide portions at positions where the seat surface is divided into at least approximately three equal parts).
[0045]
If the shortened state of the coil spring is gently released from this state, the coil spring is restrained on the seat surface side by the guide portion, so that the coil spring is seated at a predetermined position on the seat surface of the spring receiver, and the coil spring is hydraulically operated. It can be interposed on the outer periphery of the shock absorber.
[Brief description of the drawings]
FIG. 1A is a partial cross-sectional view of a hydraulic shock absorber according to a first embodiment of the present invention.
(B) It is a top view of the seat surface of the lower spring receiver concerning 1st Embodiment.
FIG. 2A is a partial cross-sectional view of a hydraulic shock absorber according to a second embodiment of the present invention.
(B) It is a top view of the seat surface of the lower spring receiver concerning 2nd Embodiment.
FIG. 3A is a partial cross-sectional view of a hydraulic shock absorber according to a third embodiment of the present invention.
(B) It is a top view of the seat surface of the lower spring receiver concerning 3rd Embodiment.
FIG. 4 is a conventional hydraulic shock absorber having a coil spring interposed on the outer periphery.
FIG. 5 is a state diagram in which a lower end of a shortened coil spring is placed on a lower spring support.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Coil spring 2 Hydraulic shock absorber 2a Outer cylinder 2b Piston rods 13, 23, 33 Lower spring receivers 14, 24, 34 Upper spring receivers 13A, 23A, 33A Spring support)
13B, 23B, 33B The guide part of the seat surface raised according to the floating height (lower spring support)
13C, 23C, 33C Lower spring bearing seats 14A, 24A, 34A Seat bearing guides based on the abutment (upper spring bearings)
14B, 24B, 34B The guide part of the seat surface raised according to the floating height (upper spring support)
14C, 24C, 34C Upper spring bearing seat surface Ca, C Inclined state

Claims (3)

油圧緩衝器の外殻をなす外筒とピストンロッドとに下方のばね受と上方のばね受とをそれぞれ設け、上記各ばね受は螺旋状の座面と座面の外端又は内端に沿って起立する案内部とを有し、油圧緩衝器に対してオフセットしたコイルスプリングを収縮状態に維持しながら当該コイルスプリングの下端部を下方のばね受の座面上に載置するとともに、コイルスプリングの上端部を上方のばね受に対向するように傾斜状態を修正し、次いでピストンロッドと連動して上方のばね受を押し下げながらコイルスプリングの上端部を上方のばね受の座面に当接させている油圧緩衝器を利用した懸架装置において、コイルスプリングの傾斜状態を修正したとき浮き上がる上下端部の任意巾の部位に対応する案内部をコイルスプリングの下端及び上端が当接している部分の案内部を基準にしてコイルスプリングの座面からの浮き上がり高さに応じて徐々に連続的に高くし、コイルスプリングの組み付け時に浮き上った上記部位が各々の座面からはみ出すのを防止することを特徴とする油圧緩衝器を利用した懸架装置。A lower spring receiver and an upper spring receiver are provided on the outer cylinder and piston rod forming the outer shell of the hydraulic shock absorber, respectively, and each of the spring receivers along the outer end or inner end of the seat. The lower end of the coil spring is placed on the seat surface of the lower spring holder while the coil spring offset with respect to the hydraulic shock absorber is maintained in a contracted state. Correct the tilted state so that the upper end of the coil is opposed to the upper spring support, and then press the upper spring support in conjunction with the piston rod while bringing the upper end of the coil spring into contact with the seat surface of the upper spring support. in the suspension system using a hydraulic shock absorber in which, in contact with the guide portion corresponding to the site of any width of the upper and lower ends floated when modifying the inclination of the coil spring lower end and the upper end of the coil spring those Relative to the guide portion of the portion are gradually continuously increases with the lifting height from the seating surface of the coil spring, the that the lifting up and the site during assembly of the coil spring protrudes from the seat surface of each Suspension device using a hydraulic shock absorber characterized by preventing. 油圧緩衝器の外殻をなす外筒とピストンロッドとに下方のばね受と上方のばね受とをそれぞれ設け、上記各ばね受は螺旋状の座面と座面の外端又は内端に沿って起立する案内部とを有し、油圧緩衝器に対してオフセットしたコイルスプリングを収縮状態に維持しながら当該コイルスプリングの下端部を下方のばね受の座面上に載置するとともに、コイルスプリングの上端部を上方のばね受に対向するように傾斜状態を修正し、次いでピストンロッドと連動して上方のばね受を押し下げながらコイルスプリングの上端部を上方のばね受の座面に当接させている油圧緩衝器を利用した懸架装置において、コイルスプリングの傾斜状態を修正したとき浮き上がる上下端部の任意巾の部位に対応する案内部をコイルスプリングの座面への当接部を基準にして上記座面から浮き上がり高さに応じて部分的に高くし、コイルスプリングの組み付け時に浮き上った上記部位が各々の座面からはみ出すのを防止することを特徴とする油圧緩衝器を利用した懸架装置。 A lower spring receiver and an upper spring receiver are provided on the outer cylinder and piston rod forming the outer shell of the hydraulic shock absorber, respectively, and each of the spring receivers along the outer end or inner end of the seat. The lower end of the coil spring is placed on the seat surface of the lower spring holder while the coil spring offset with respect to the hydraulic shock absorber is maintained in a contracted state. Correct the tilted state so that the upper end of the coil is opposed to the upper spring support, and then press the upper spring support in conjunction with the piston rod while bringing the upper end of the coil spring into contact with the seat surface of the upper spring support. In the suspension system using a hydraulic shock absorber, the guide part corresponding to the part of any width of the upper and lower ends that floats when the inclination state of the coil spring is corrected is based on the contact part of the coil spring with the seating surface. To use a hydraulic shock absorber, characterized in that partially increases with the height lifted from the seating surface, to prevent the above sites float up during assembly of the coil spring protrudes from the seat surface of each Suspension system. コイルスプリングの当接部を基準に座面を少なくともほぼ３等分した位置の座面の案内部を、コイルスプリングの浮き上がり高さに応じて当接部の案内部よりも部分的に高くしたことを特徴とする請求項２に記載の油圧緩衝器を利用した懸架装置。The seat surface guide portion at a position where the seat surface is divided into at least about three equal parts with respect to the contact portion of the coil spring is partially higher than the guide portion of the contact portion according to the height of the coil spring. A suspension device using the hydraulic shock absorber according to claim 2 .
JP2000289654A 2000-07-24 2000-09-25 Suspension device using hydraulic shock absorber Expired - Fee Related JP4383644B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000289654A JP4383644B2 (en) 2000-07-24 2000-09-25 Suspension device using hydraulic shock absorber

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000221724 2000-07-24
JP2000-221724 2000-07-24
JP2000289654A JP4383644B2 (en) 2000-07-24 2000-09-25 Suspension device using hydraulic shock absorber

Publications (2)

Publication Number Publication Date
JP2002103940A JP2002103940A (en) 2002-04-09
JP4383644B2 true JP4383644B2 (en) 2009-12-16

Family

ID=26596501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000289654A Expired - Fee Related JP4383644B2 (en) 2000-07-24 2000-09-25 Suspension device using hydraulic shock absorber

Country Status (1)

Country Link
JP (1) JP4383644B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016136A1 (en) * 2004-04-01 2005-10-20 Bayerische Motoren Werke Ag Supporting and centering device for a spring plate, in particular of a motor vehicle
JP2015174514A (en) * 2014-03-14 2015-10-05 富士重工業株式会社 Vehicle body structure
CN111188863A (en) * 2018-11-14 2020-05-22 宝沃汽车（中国）有限公司 Vehicle and shock absorber spring assembly thereof

Also Published As

Publication number Publication date
JP2002103940A (en) 2002-04-09

Similar Documents

Publication Publication Date Title
CN101092231A (en) Shock-absorbing wheel mounting structure for jack
JP2008001356A (en) Shock absorber
KR100476604B1 (en) Arrangement with a helical spring and a support bearing for spring struts
JP2008222219A (en) Wheel suspension device of vehicle
US8137044B2 (en) Wheel handling apparatus
JP4383644B2 (en) Suspension device using hydraulic shock absorber
FR2796888A1 (en) SUSPENSION LEG, WITH OR WITHOUT INTERNAL PLATE REGULATION
JP2703396B2 (en) Zipper
JP3955716B2 (en) Hydraulic shock absorber
CN213328643U (en) Novel bridge bearing
JP4865889B2 (en) Suspension spring seat and suspension
JPH10339387A (en) Piping supporter device
JP2816829B2 (en) Heavy load support device
CN219281076U (en) Stable in structure&#39;s anti-wind post
JP3132833U (en) Lift cylinder stroke adjusting device
US5435522A (en) Vehicle lift
JP2001225625A (en) Hydraulic shock absorber
CN211368429U (en) Highway bridge construction support bracket
JP2694937B2 (en) Lifting floor holding device
JP2679542B2 (en) Lift cylinder support structure
JP3396535B2 (en) Linear motor driven elevator
JPS6134164Y2 (en)
JPH0118678Y2 (en)
JPH05310103A (en) Outrigger device for unmanned carrier
JP2002067647A (en) Strut type hydraulic shock absorber

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060831

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090217

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090327

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20090908

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090924

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121002

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121002

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121002

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131002

Year of fee payment: 4

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

LAPS Cancellation because of no payment of annual fees