JP2004036796A - Vibration isolating mount - Google Patents

Vibration isolating mount Download PDF

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Publication number
JP2004036796A
JP2004036796A JP2002196232A JP2002196232A JP2004036796A JP 2004036796 A JP2004036796 A JP 2004036796A JP 2002196232 A JP2002196232 A JP 2002196232A JP 2002196232 A JP2002196232 A JP 2002196232A JP 2004036796 A JP2004036796 A JP 2004036796A
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JP
Japan
Prior art keywords
mount
temporary fixing
inner cylinder
stopper
stopper fitting
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.)
Pending
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JP2002196232A
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Japanese (ja)
Inventor
▲ただ▼野 秀夫
Hideo Tadano
Akihiko Kato
加藤 明彦
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.)
Toyo Tire Corp
Original Assignee
Toyo Tire and Rubber Co Ltd
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 Toyo Tire and Rubber Co Ltd filed Critical Toyo Tire and Rubber Co Ltd
Priority to JP2002196232A priority Critical patent/JP2004036796A/en
Publication of JP2004036796A publication Critical patent/JP2004036796A/en
Pending legal-status Critical Current

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  • Vehicle Body Suspensions (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent loss of component by reducing man-hour of assembling to a vehicle body frame. <P>SOLUTION: This vibration isolating mount comprises: a mount body 1; and a stopper metal fitting 2 with respect to the mount body 1.The mount body 1 comprises: an inner cylinder 3 through which a bolt for attaching to a vehicle body is inserted; an outer cylinder 4; and a rubber elastic body 26 interposed between the inner cylinder and the outer cylinder for coupling the inner cylinder and the outer cylinder to each other.The stopper metal fitting 2 is fixed to one end of the inner cylinder 3 with a bolt inserted to the inner cylinder 3.This vibration isolating mount is provided with a temporal attaching means which is capable of performing temporal attaching of the stopper metal fitting 2 to the mount body 1 and is capable of preventing reversed temporal attaching of the stopper metal fitting 2 to the mount body 1 in an axial center direction of the inner and outer cylinders. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、マウント本体と、このマウント本体に対するストッパ金具とから成り、前記マウント本体は、車体への取付け用けのボルトを挿通させる内筒と、この内筒を囲む外筒と、内外筒間に介在してこれらを連結するゴム状弾性体とから構成し、前記ストッパ金具は、前記内筒に挿通させたボルトで前記内筒の一端部に固定されるよう構成してある防振マウントに関する。
【0002】
【従来の技術】
図11に、上記の防振マウントの一例として、自動車の車体フレーム104とサスペンションメンバー105との間に設けた防振マウントを示してある。その取付け構造について説明すると、マウント本体100を外筒102の一端部側からサスペンションメンバー105側のカラー106に圧入し、車体フレーム104の下端部に突設した下向きの取付けボルト107を、内筒101と、座金109と、ボルト挿通孔を備えた円板状のストッパ金具110とに挿通させ、取付けボルト107の先端部にナット108を螺合締結してある。
【0003】
103はゴム状弾性体、111はゴム状弾性体103と連なるゴム状弾性突起、112はストッパゴム状弾性部である。ゴム状弾性突起111は、ストッパゴム状弾性部112よりも下方に突出して、サスペンションメンバー105の自重が作用した状態でストッパ金具110に接しており、外筒102の変位を規制する際に、ストッパゴム状弾性部112のストッパ金具110への当たりがやわらかくなるようにしている。
【0004】
従来、サスペンションメンバー105にマウント本体100を組付けた防振マウントを車体フレームに組付ける場合、マウント本体100とは分離しているストッパ金具110を、そのボルト挿通孔がマウント本体100の内筒101の中空部と同芯になるようにマウント本体100に対して位置決めし、取付けボルト107をストッパ金具110と内筒101に挿通させてボルト固定していた。
【0005】
【発明が解決しようとする課題】
上記従来の構成によれば、マウント本体に対してストッパ金具を位置決めしなければならず、その位置決め分だけ組み付け工数が多くなっていた。また、運搬中にストッパ金具とマウント本体の一方を紛失させることがあった。
【0006】
本発明の目的は、車体フレームへの組付け工数を減少させることができ、構成部品の紛失を防止することができる防振マウントを提供する点にある。
【0007】
【課題を解決するための手段】
請求項1による発明の構成は、マウント本体と、このマウント本体に対するストッパ金具とから成り、前記マウント本体は、車体への取付け用けのボルトを挿通させる内筒と、この内筒を囲む外筒と、内外筒間に介在してこれらを連結するゴム状弾性体とから構成し、前記ストッパ金具は、前記内筒に挿通させたボルトで前記内筒の一端部に固定されるよう構成してある防振マウントであって、
前記ストッパ金具を前記マウント本体に仮止め可能で、かつ、前記ストッパ金具が前記マウント本体に前記内外筒の軸心方向で反転して仮止めされるのを回避可能な仮止め手段を設けてある点にある。
【0008】
請求項2による発明の構成は、請求項1による発明の構成において、前記仮止め手段は、前記マウント本体とストッパ金具に、互いに係合自在な係合部と被係合部を複数個づつ、前記マウント本体側及びストッパ金具側でそれぞれ非点対称になるように振分け配設して構成してある点にある。
【0009】
請求項3による発明の構成は、請求項2による発明の構成において、前記係合部は、前記外筒からこの外筒の軸心方向に突出する仮止めピンであり、前記被係合部は、前記ストッパ金具に形成した係合孔である点にある。
【0010】
請求項4による発明の構成は、請求項3による発明の構成において、前記ストッパ金具に形成した複数の係合孔の孔径をそれぞれ異ならせてあり、前記外筒から突出する複数の仮止めピンの外径を、各係合孔に対応させてそれぞれ異ならせてある点にある。
【0011】
請求項5による発明の構成は、請求項3又は4による発明の構成において、前記仮止めピンをゴム状弾性体で形成するとともに、前記仮止めピンの長手方向中間部又は先端部に、弾性変形しながら前記係合孔を通過する膨出部を形成してある点にある。
【0012】
請求項6による発明の構成は、請求項5による発明の構成において、前記膨出部に、前記係合孔との係合の解除を阻止する係合解除阻止壁を、前記仮止めピンの軸心とほぼ直角な姿勢、又は頂部側ほど仮止めピンの基端側に位置する傾斜姿勢になるように形成してある点にある。
【0013】
請求項7による発明の構成は、請求項1〜6のいずれかひとつによる発明の構成において、前記ストッパ金具はボルト挿通孔を備え、このボルト挿通孔及び前記内筒に挿通させたボルトの頭部、又は前記ボルトに螺合したナットで前記ストッパ金具が押圧されて、前記内筒の一端面側に圧接するように構成してある点にある。
【0014】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。
図1〜図4,図10に、車体フレーム8と、この車体フレーム8の下側のサスペンションメンバー9とに組付けられた状態で車体への変位入力を低減し振動を抑制する自動車用の縦姿勢の防振マウントを示してある。
【0015】
この防振マウントは、マウント本体1と、マウント本体1に対する円板状のストッパ金具2とから成り、マウント本体1を、車体フレーム8への取付け用のボルト10(以下、「取付けボルト10」と称する)を挿通させる内筒3と、この内筒3を囲む外筒4と、内外筒3,4間の中間筒5と、内外筒3,4間に介在してこれらを連結するゴム状弾性体26とから構成してある。
【0016】
前記マウント本体1は外筒4の一端側からサスペンションメンバー9の縦カラー12に圧入され、ストッパ金具2は、マウント本体1の内筒3に挿通させた取付けボルト10で内筒3の下端部(一端部)に固定される。つまり、ストッパ金具2の中央部に形成したボルト挿通孔19(図7,図8参照)に取付けボルト10を挿通させるとともに、この取付けボルト10を内筒3に下方から挿通させ、車体フレーム8側で取付けボルト10にナット(図示せず)を螺合締結して、取付けボルト10の頭部でストッパ金具2を押圧し、内筒3の下端面(一端面)に圧接させる。
【0017】
各部の構造についてさらに説明すると、内筒3は、ゴム状弾性体26を加硫接着させる加硫接着筒部27の上側に、車体フレーム8の下面に圧接させる内筒フランジ11を張出し形成し、内筒フランジ11の上側に、車体フレーム6の開口に嵌合させる嵌合筒部28を、加硫接着筒部27よりも小径に形成して構成してある。
【0018】
外筒4は、下端部に折曲形成した外筒フランジ13で後述のゴム状弾性突起15・ストッパゴム状弾性部16・仮止めピン17A,17Bを支持している。前記外筒フランジ13は、外筒4が縦カラー12に圧入される際の内外筒3,4の軸心方向での位置決めにもなる。
【0019】
中間筒5は、ゴム状弾性体26を内側ゴム状弾性体部分6と外側弾性体部分7とに仕切り、内側のゴム状弾性体部分6の内周側が内筒3の外周面に固着し、外周側が中間筒5の内周面に固着して内筒3と中間筒5を連結している。そして、外側のゴム状弾性体部分7の外周側が外筒4の内周面に固着し、内周側が中間筒5の外周面に固着して外筒4と中間筒5を連結している。
【0020】
図2,図3,図10に示すように外側のゴム状弾性体部分7の下端側に、この下端側に連なるゴム状弾性突起15とストッパゴム状弾性部16を突設してある。そして、サスペンションメンバー9の自重が加わった状態で、ゴム状弾性突起15がストッパ金具2に接触し、ストッパゴム状弾性部16とストッパ金具2の間に所定の隙間が形成されるように、ゴム状弾性突起15とストッパゴム状弾性部16の軸心方向の長さを設定してある。
【0021】
図7,図8,図10に示すように、前記ストッパ金具2は外筒フランジ13よりも少し大径に設定してある。またストッパ金具2の中央部を上方に膨出させて外力に対して強い構造にしてある。
【0022】
前述したようにストッパ金具2は、内筒3に挿通させた取付けボルト10で内筒3の下端部に固定されるが、車体フレーム8とサスペンションメンバー9への防振マウントの組付け作業の前に、マウント本体1から分離した状態になっていると、紛失など種々の不具合が考えられることから、ストッパ金具2をマウント本体1に仮止めする仮止め手段を設けてある。
【0023】
この仮止め手段は、ストッパ金具2がマウント本体1に内外筒3,4の軸心方向で反転して仮止めされるのを回避可能に構成してあり、詳しくは、図3〜図8に示すように、外筒フランジ13のフランジ面とストッパ金具2に、互いに係合自在な仮止めピン17A,17B(係合部に相当)と係合孔20A,20B(被係合部に相当)を一対づつ、外筒フランジ13側及びストッパ金具2側でそれぞれ非点対称になるように振分け配設して構成してある。
【0024】
仮止めピン17A,17Bは、外側ゴム状弾性体部分7・ゴム状弾性突起15・ストッパゴム状弾性部16と一体に加硫成形したゴム状弾性体から成り、ストッパゴム状弾性部16の下端面に連なった状態で外筒フランジ13からこの外筒4の軸心方向に突出している。
そしてその長手方向中間部に、弾性変形しながら係合孔20A,20Bを通過する先窄まりテーパ状の膨出部18を形成し、膨出部18に、係合孔20A,20Bとの係合の解除を阻止する係合解除阻止壁30を、仮止めピンの軸心とほぼ直角な姿勢になるように形成してある(図4,図5,図6参照)。
【0025】
一方の仮止めピン17Bは他方の仮止めピン17Aに対して、点対称位置(内外筒3,4の軸心を対称の中心とする)から内筒3の軸心周りに20度ずれた非点対称位置に位置している(図3参照)。ストッパ金具2に形成した一方の係合孔20Bも同様に、他方の係合孔20Aに対して、点対称位置から20度ずれた非点対称位置に位置している(図7参照)。
【0026】
また、仮止め状態で、ストッパ金具2のボルト挿通孔19と内筒3の中空部29とがほぼ同芯になるように、仮止めピン17A,17B・係合孔20A,20Bの位置をそれぞれ設定してある。そして、一対の係合孔20A,20Bの孔径をそれぞれ異ならせ、一対の仮止めピン17A,17Bの外径(基端部・膨出部の外径)を、各係合孔20A,20Bに対応させてそれぞれ異ならせてある。
【0027】
一例として、一方の係合孔20Bの孔径を5.2mm、これに対応する一方の仮止めピン17Bの基端部31の径を5.2mm、膨出部18の径を6.6mmに形成し、他方の係合孔20Aの孔径を6.2mm、これに対応する他方の仮止めピン17Aの基端部31の径を6.2mm、膨出部18の径を7.6mmに形成する。
【0028】
これにより、仮止めピン17A(17B)を、相手側の係合孔20A(20B)とは別の係合孔20B(20A)に間違って係合させるのを防止することができ、ストッパ金具2のボルト挿通孔19と内筒3の中空部29とがほぼ同芯になるように仮止めすることができる。
【0029】
上記の構造の防振マウントは、車体フレーム8とサスペンションメンバー9に次のようにして取付ける。
【0030】
(1)防振マウントを車体フレーム8とサスペンションメンバー9に組付ける前に、ストッパ金具2をマウント本体1に仮止めしておく。すなわち、マウント本体1の仮止めピン17A,17Bをストッパ金具2の係合孔20A,20Bに挿通させ、その膨出部18を係合孔20A,20Bに係合させておく。図9に仮止め状態を示してある。一対づつの仮止めピン17A,17Bと係合孔20A,20Bを上記のように形成し配置してあるから、ストッパ金具2がマウント本体1に内外筒3,4の軸心方向で反転して仮止めされるのを回避することができ、所望の姿勢に正確に仮止めすることができる。また仮止めすると、ストッパ金具2のボルト挿通孔19と内筒3の中空部29とが同芯になる。
【0031】
(2)このように仮止めされた防振マウントをサスペンションメンバー9の縦カラー12に下方から圧入して、外筒フランジ13を縦カラー12に圧接させるとともに、内筒3の上端側の嵌合筒部28を車体フレーム8の開口に下方から嵌合し、内筒フランジ11を車体フレーム8の下面側に当接させる。
【0032】
(3)ストッパ金具2のボルト挿通孔19及び内筒3に、下方から取付けボルト10を挿通させる。仮止め状態では、ストッパ金具2のボルト挿通孔19と内筒3の中空部29とが同芯になっているから、両者を位置決めしなくても済む。
【0033】
次に、車体フレーム8の上方からナットを螺合し、車体フレーム8の下面側に内筒3をボルト固定するとともに、ストッパ金具2を内筒3の下端面に圧接させる。
そして、車体フレーム8及びサスペンションメンバー9の間にカバー21を介在させて、両者の開口を取り囲むことにより、両ゴム状弾性体部分6,7周辺へのダスト等の侵入を阻止する。
【0034】
(4)外筒4にサスペンションメンバー9の自重を作用させると、ストッパ金具2にゴム状弾性突起15が接触する。
【0035】
[別実施形態]
前記仮止めピン17A,17Bや係合孔20A,20Bの数は3以上であってもよい。また、仮止めピン17A,17Bの先端部に前記膨出部18を形成してあってもよい。
【0036】
前記係合部や被係合部の形状は、上記の実施形態の形状に限られるものではない。
【0037】
前記取付けボルト10は、車体フレーム8の下端部に下方に向けて突設してあってもよい。この場合、内筒3及びストッパ金具2のボルト挿通孔19に挿通させた取付けボルト10の下端側先端部にナットを螺合締結し、このナットでストッパ金具2を押圧して内筒3の下端面に圧接させる。
【0038】
前記ストッパ金具2と内筒3の下端面との間に座金を介在させてあってもよい。
【0039】
前記膨出部18の係合解除阻止壁30を、頂部側ほど仮止めピン17A,17Bの基端側に位置する傾斜姿勢に形成してあってもよい。
【0040】
【発明の効果】
請求項1の構成によれば、ストッパ金具をマウント本体に仮止めすることができるから、運搬中にストッパ金具やマウント本体が紛失するのを防止することができる。また、仮止め状態で、ストッパ金具のボルト挿通孔と内筒の中空部とがほぼ同芯になるように仮止め手段を構成すれば、本固定の際に、ストッパ金具のボルト挿通孔と内筒の中空部との位置決めをすることなく、これらの孔にそのままボルトを挿通させることができ、両孔の位置決め作業を省くことができる。
そして、ストッパ金具がマウント本体に内外筒の軸心方向で反転して仮止めされるのを回避することができる。
【0041】
従って、車体フレームへの組付け工数を減少させることができ、構成部品の紛失を防止することができ、しかも、ストッパ金具がマウント本体に内外筒の軸心方向で反転して仮止めされることに起因するストッパ金具の取付け作業のやり直しを回避することができて、より組み付け作業の作業性を向上させることができる防振マウントを提供することができた。
【0042】
請求項2の構成によれば、仮止め手段は、マウント本体とストッパ金具に、互いに係合自在な係合部と被係合部を複数個づつ、マウント本体側及びストッパ金具側でそれぞれ非点対称になるように振分け配設して構成してあるから、仮止め手段の構造を簡素化できるとともに、係合部と被係合部を係合するだけの簡単な作業で、ストッパ金具をマウント本体に、内外筒の軸心方向で反転させることなく正確に仮止めすることができる。
【0043】
請求項3の構成によれば、係合部は、外筒からこの外筒の軸心方向に突出する仮止めピンであり、被係合部は、ストッパ金具に形成した係合孔であるから、
ストッパ金具の係合孔に仮止めピンを係合するだけの簡単な作業でマウント本体とストッパ金具を仮止めすることができる。
【0044】
請求項4の構成によれば、ストッパ金具に形成した複数の係合孔の孔径をそれぞれ異ならせてあり、外筒から突出する複数の仮止めピンの外径を、各係合孔に対応させてそれぞれ異ならせてあるから、仮止めピンを、相手側の係合孔とは別の係合孔に間違って係合させるのを防止することができ、ストッパ金具をマウント本体に所望の姿勢に正確に仮止めすることができる。
【0045】
請求項5の構成によれば、仮止めピンをゴム状弾性体で形成するとともに、仮止めピンの長手方向中間部又は先端部に、弾性変形しながら係合孔を通過する膨出部を形成してあるから、仮止めピンを係合孔から抜けにくくすることができる。そして、仮止めピンを内外筒間のゴム状弾性体と一体に加硫成形すれば、仮止めピン専用の成形工程が不要になって成形工程を少なくすることができる。
【0046】
請求項6の構成によれば、膨出部に、係合孔との係合の解除を阻止する係合解除阻止壁を、仮止めピンの軸心とほぼ直角な姿勢、又は頂部側ほど仮止めピンの基端側に位置する傾斜姿勢になるように形成してあるから、仮止めピンを係合孔からより抜けにくくすることができる。
【0047】
請求項7の構成によれば、ストッパ金具はボルト挿通孔を備え、このボルト挿通孔及び内筒に挿通させたボルトの頭部、又はボルトに螺合したナットでストッパ金具が押圧されて、内筒の一端面側に圧接するように構成してあるから、ストッパ金具を内筒に強固に固定することができる。
【図面の簡単な説明】
【図1】防振マウントの平面図
【図2】図3のA−A断面図
【図3】防振マウントの底面図
【図4】図3のB−B断面図
【図5】図3のC−C断面図
【図6】図3のD−D断面図
【図7】ストッパ金具の平面図
【図8】図7のA−A断面図
【図9】ストッパ金具をマウント本体に仮止めした状態を示す縦断正面図
【図10】防振マウントを車体フレームとサスペンションメンバーに取付けた状態を示す縦断正面図
【図11】従来の技術を示す縦断正面図
【符号の説明】
1       マウント本体
2       ストッパ金具
3       内筒
4       外筒
10       取付けボルト
17A,17B  係合部(仮止めピン)
18       膨出部
20A,20B  被係合部(係合孔)
26       ゴム状弾性体
30       係合解除阻止壁
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention comprises a mount main body and a stopper fitting for the mount main body, wherein the mount main body includes an inner cylinder through which a bolt for mounting to a vehicle body is inserted, an outer cylinder surrounding the inner cylinder, and an inner cylinder and an outer cylinder. And a rubber-like elastic body that connects them with each other, and the stopper fitting is configured to be fixed to one end of the inner cylinder with a bolt inserted through the inner cylinder. .
[0002]
[Prior art]
FIG. 11 shows an anti-vibration mount provided between a vehicle body frame 104 and a suspension member 105 as an example of the above-described anti-vibration mount. The mounting structure will be described. The mount body 100 is pressed into the collar 106 on the suspension member 105 side from one end of the outer cylinder 102, and the downward mounting bolt 107 protruding from the lower end of the body frame 104 is attached to the inner cylinder 101. , And a disc-shaped stopper fitting 110 having a bolt insertion hole, and a nut 108 is screwed and fastened to the tip of the mounting bolt 107.
[0003]
103 is a rubber-like elastic body, 111 is a rubber-like elastic projection connected to the rubber-like elastic body 103, and 112 is a stopper rubber-like elastic part. The rubber-like elastic projection 111 protrudes below the stopper rubber-like elastic part 112 and is in contact with the stopper fitting 110 in a state where the weight of the suspension member 105 is acting. The rubber-like elastic portion 112 is configured to be soft on the stopper fitting 110.
[0004]
Conventionally, when mounting an anti-vibration mount in which a mount body 100 is mounted on a suspension member 105 to a vehicle body frame, a stopper fitting 110 which is separated from the mount body 100 is provided with a bolt insertion hole having an inner cylinder 101 of the mount body 100. Was positioned relative to the mount main body 100 so as to be concentric with the hollow portion of, and the mounting bolt 107 was inserted through the stopper fitting 110 and the inner cylinder 101 to fix the bolt.
[0005]
[Problems to be solved by the invention]
According to the above-described conventional configuration, the stopper fitting must be positioned with respect to the mount body, and the number of assembling steps is increased by the positioning. Further, one of the stopper fitting and the mount body may be lost during transportation.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to provide an anti-vibration mount that can reduce the number of steps for assembling the vehicle body frame and prevent loss of components.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 comprises a mount main body and a stopper fitting for the mount main body, wherein the mount main body includes an inner cylinder through which a bolt for mounting to a vehicle body is inserted, and an outer cylinder surrounding the inner cylinder. And a rubber-like elastic body interposed between the inner and outer cylinders and connecting them, and the stopper fitting is configured to be fixed to one end of the inner cylinder with a bolt inserted through the inner cylinder. An anti-vibration mount,
Temporary fixing means capable of temporarily fixing the stopper metal to the mount main body and preventing the stopper metal from being temporarily fixed to the mount main body by being inverted in the axial direction of the inner and outer cylinders is provided. On the point.
[0008]
According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, the temporary fixing means includes a plurality of mutually engageable engaging portions and engaged portions on the mount body and the stopper fitting, The arrangement is such that the mounting body side and the stopper fitting side are distributed and arranged so as to be astigmatically symmetric.
[0009]
According to a third aspect of the present invention, in the configuration of the second aspect of the present invention, the engaging portion is a temporary fixing pin projecting from the outer cylinder in the axial direction of the outer cylinder, and the engaged portion is And the engagement hole formed in the stopper fitting.
[0010]
According to a fourth aspect of the present invention, in the configuration of the third aspect of the present invention, the plurality of engaging holes formed in the stopper metal have different diameters, and the plurality of temporary fixing pins projecting from the outer cylinder are provided. The point is that the outer diameter is made different corresponding to each engagement hole.
[0011]
According to a fifth aspect of the present invention, in the configuration of the third or fourth aspect of the invention, the temporary fixing pin is formed of a rubber-like elastic body, and the temporary fixing pin is elastically deformed at a longitudinally intermediate portion or a distal end thereof. While forming a bulging portion passing through the engaging hole.
[0012]
According to a sixth aspect of the present invention, in the configuration according to the fifth aspect of the present invention, the bulging portion is provided with a disengagement preventing wall for preventing disengagement with the engaging hole, and the shaft of the temporary fixing pin is provided. The point is that it is formed so as to have a posture substantially perpendicular to the center, or an inclined posture closer to the base end side of the temporary fixing pin toward the top.
[0013]
According to a seventh aspect of the present invention, in the configuration according to any one of the first to sixth aspects, the stopper fitting has a bolt insertion hole, and a head of the bolt inserted through the bolt insertion hole and the inner cylinder. Alternatively, the stopper fitting is pressed by a nut screwed to the bolt, and is pressed against one end surface of the inner cylinder.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIGS. 1 to 4 and FIG. 10 show a longitudinal section for an automobile which suppresses vibration by reducing displacement input to a vehicle body in a state where the vehicle body frame 8 and a suspension member 9 below the vehicle body frame 8 are assembled. A posture anti-vibration mount is shown.
[0015]
This anti-vibration mount includes a mount main body 1 and a disc-shaped stopper fitting 2 for the mount main body 1. The mount main body 1 is attached to a vehicle body frame 8 with bolts 10 (hereinafter, referred to as "mounting bolts 10"). ), An outer cylinder 4 surrounding the inner cylinder 3, an intermediate cylinder 5 between the inner and outer cylinders 3 and 4, and a rubber-like elasticity interposed between the inner and outer cylinders 3 and 4 to connect them. And a body 26.
[0016]
The mount body 1 is press-fitted into the vertical collar 12 of the suspension member 9 from one end side of the outer cylinder 4, and the stopper 2 is attached to the lower end of the inner cylinder 3 by a mounting bolt 10 inserted through the inner cylinder 3 of the mount body 1. At one end). That is, the mounting bolt 10 is inserted through the bolt insertion hole 19 (see FIGS. 7 and 8) formed in the center of the stopper fitting 2, and the mounting bolt 10 is inserted through the inner cylinder 3 from below, so that the vehicle body frame 8 side Then, a nut (not shown) is screwed and fastened to the mounting bolt 10, the stopper 2 is pressed by the head of the mounting bolt 10, and is pressed against the lower end surface (one end surface) of the inner cylinder 3.
[0017]
The structure of each part will be further described. The inner cylinder 3 is formed by extending the inner cylinder flange 11 which is pressed against the lower surface of the vehicle body frame 8 above the vulcanization bonding cylinder 27 for vulcanizing and bonding the rubber-like elastic body 26. On the upper side of the inner cylinder flange 11, a fitting cylinder part 28 to be fitted into the opening of the vehicle body frame 6 is formed to have a smaller diameter than the vulcanization bonding cylinder part 27.
[0018]
The outer cylinder 4 supports a rubber-like elastic projection 15, a stopper rubber-like elastic part 16, and temporary fixing pins 17 </ b> A and 17 </ b> B, which will be described later, with an outer cylinder flange 13 bent at the lower end. The outer cylinder flange 13 also serves to position the inner cylinder 3 and 4 in the axial direction when the outer cylinder 4 is pressed into the vertical collar 12.
[0019]
The intermediate cylinder 5 partitions the rubber elastic body 26 into an inner rubber elastic body part 6 and an outer elastic body part 7, and the inner peripheral side of the inner rubber elastic body part 6 is fixed to the outer peripheral surface of the inner cylinder 3, The outer peripheral side is fixed to the inner peripheral surface of the intermediate cylinder 5 and connects the inner cylinder 3 and the intermediate cylinder 5. The outer peripheral side of the outer rubber-like elastic body portion 7 is fixed to the inner peripheral surface of the outer cylinder 4, and the inner peripheral side is fixed to the outer peripheral surface of the intermediate cylinder 5 to connect the outer cylinder 4 and the intermediate cylinder 5.
[0020]
As shown in FIGS. 2, 3, and 10, a rubber-like elastic projection 15 and a stopper rubber-like elastic portion 16 connected to the lower end of the outer rubber-like elastic body portion 7 protrude from the lower end of the outer rubber-like elastic body portion 7. Then, the rubber-like elastic projection 15 comes into contact with the stopper fitting 2 with the weight of the suspension member 9 being applied, and a predetermined gap is formed between the stopper rubber-like elastic part 16 and the stopper fitting 2. The axial length of the elastic protrusion 15 and the stopper elastic portion 16 is set.
[0021]
As shown in FIGS. 7, 8 and 10, the stopper fitting 2 is set to have a slightly larger diameter than the outer cylinder flange 13. The central portion of the stopper fitting 2 is bulged upward to have a structure that is strong against external force.
[0022]
As described above, the stopper fitting 2 is fixed to the lower end of the inner cylinder 3 with the mounting bolt 10 inserted through the inner cylinder 3, but before the work of assembling the anti-vibration mount to the body frame 8 and the suspension member 9. In addition, if it is separated from the mount main body 1, various problems such as loss may be considered. Therefore, a temporary fixing means for temporarily fixing the stopper fitting 2 to the mount main body 1 is provided.
[0023]
This temporary fixing means is configured to be able to prevent the stopper fitting 2 from being temporarily fixed to the mount main body 1 by being inverted in the axial direction of the inner and outer cylinders 3 and 4. As shown, the temporary fixing pins 17A and 17B (corresponding to the engaging portion) and the engaging holes 20A and 20B (corresponding to the engaged portion) are engageable with the flange surface of the outer cylindrical flange 13 and the stopper fitting 2. Are arranged and arranged so as to be asymmetry on the outer cylinder flange 13 side and the stopper fitting 2 side, respectively.
[0024]
The temporary fixing pins 17A and 17B are made of a rubber-like elastic body integrally vulcanized with the outer rubber-like elastic portion 7, the rubber-like elastic projection 15, and the stopper rubber-like elastic portion 16, and are provided below the stopper rubber-like elastic portion 16. It protrudes from the outer cylinder flange 13 in the axial direction of the outer cylinder 4 in a state of being connected to the end face.
A tapered tapered bulging portion 18 which passes through the engaging holes 20A and 20B while being elastically deformed is formed in the middle portion in the longitudinal direction, and the bulging portion 18 is engaged with the engaging holes 20A and 20B. The disengagement preventing wall 30 for preventing the disengagement is formed so as to be substantially perpendicular to the axis of the temporary fixing pin (see FIGS. 4, 5, and 6).
[0025]
One temporary fixing pin 17B is displaced from the other temporary fixing pin 17A by 20 degrees around the axis of the inner cylinder 3 from a point symmetrical position (with the axis of the inner and outer cylinders 3 and 4 as the center of symmetry). It is located at a point symmetric position (see FIG. 3). Similarly, one engagement hole 20B formed in the stopper fitting 2 is located at a non-point symmetric position shifted by 20 degrees from the point symmetric position with respect to the other engagement hole 20A (see FIG. 7).
[0026]
In the temporarily fixed state, the positions of the temporary fixing pins 17A, 17B and the engagement holes 20A, 20B are respectively adjusted so that the bolt insertion hole 19 of the stopper fitting 2 and the hollow portion 29 of the inner cylinder 3 are substantially concentric. It has been set. Then, the hole diameters of the pair of engagement holes 20A, 20B are made different from each other, and the outer diameters (the outer diameters of the base end portions and the bulging portions) of the pair of temporary fixing pins 17A, 17B are set to the respective engagement holes 20A, 20B. Corresponding to each different.
[0027]
As an example, the diameter of one engagement hole 20B is 5.2 mm, the diameter of the base end 31 of the one temporary fixing pin 17B is 5.2 mm, and the diameter of the bulging portion 18 is 6.6 mm. The diameter of the other engagement hole 20A is 6.2 mm, the diameter of the base 31 of the other temporary fixing pin 17A is 6.2 mm, and the diameter of the bulging portion 18 is 7.6 mm. .
[0028]
Thereby, it is possible to prevent the temporary fixing pin 17A (17B) from being erroneously engaged with the engaging hole 20B (20A) different from the mating engaging hole 20A (20B). Can be temporarily fixed such that the bolt insertion hole 19 and the hollow portion 29 of the inner cylinder 3 are substantially concentric.
[0029]
The anti-vibration mount having the above structure is attached to the body frame 8 and the suspension member 9 as follows.
[0030]
(1) Before assembling the anti-vibration mount to the vehicle body frame 8 and the suspension member 9, the stopper fitting 2 is temporarily fixed to the mount body 1. That is, the temporary fixing pins 17A and 17B of the mount main body 1 are inserted into the engaging holes 20A and 20B of the stopper fitting 2, and the bulging portion 18 is engaged with the engaging holes 20A and 20B. FIG. 9 shows a temporarily fixed state. Since the pair of temporary fixing pins 17A, 17B and the engagement holes 20A, 20B are formed and arranged as described above, the stopper metal fitting 2 is inverted on the mount body 1 in the axial direction of the inner and outer cylinders 3, 4. Temporary fixing can be avoided, and temporary fixing to a desired posture can be accurately performed. Also, when temporarily fixed, the bolt insertion hole 19 of the stopper fitting 2 and the hollow portion 29 of the inner cylinder 3 become concentric.
[0031]
(2) The anti-vibration mount temporarily fixed in this way is pressed into the vertical collar 12 of the suspension member 9 from below, so that the outer cylinder flange 13 is pressed against the vertical collar 12 and the upper end of the inner cylinder 3 is fitted. The cylindrical portion 28 is fitted into the opening of the vehicle body frame 8 from below, and the inner cylindrical flange 11 is brought into contact with the lower surface of the vehicle body frame 8.
[0032]
(3) The mounting bolt 10 is inserted into the bolt insertion hole 19 of the stopper fitting 2 and the inner cylinder 3 from below. In the temporarily fixed state, since the bolt insertion hole 19 of the stopper fitting 2 and the hollow portion 29 of the inner cylinder 3 are concentric, it is not necessary to position both.
[0033]
Next, a nut is screwed from above the body frame 8, the inner cylinder 3 is bolted to the lower surface of the body frame 8, and the stopper fitting 2 is pressed against the lower end surface of the inner cylinder 3.
Then, a cover 21 is interposed between the body frame 8 and the suspension member 9 to surround the openings of both, thereby preventing dust and the like from entering around the rubber-like elastic portions 6 and 7.
[0034]
(4) When the weight of the suspension member 9 acts on the outer cylinder 4, the rubber-like elastic projection 15 comes into contact with the stopper fitting 2.
[0035]
[Another embodiment]
The number of the temporary fixing pins 17A, 17B and the engagement holes 20A, 20B may be three or more. Further, the bulging portion 18 may be formed at the tip of the temporary fixing pins 17A and 17B.
[0036]
The shape of the engaging portion and the engaged portion is not limited to the shape of the above embodiment.
[0037]
The mounting bolt 10 may project downward from the lower end of the body frame 8. In this case, a nut is screwed and fastened to the lower end side end of the mounting bolt 10 inserted through the bolt insertion hole 19 of the inner cylinder 3 and the stopper fitting 2. Press against the end face.
[0038]
A washer may be interposed between the stopper fitting 2 and the lower end surface of the inner cylinder 3.
[0039]
The engagement release preventing wall 30 of the bulging portion 18 may be formed in an inclined posture in which the closer to the top, the closer to the base end of the temporary fixing pins 17A, 17B.
[0040]
【The invention's effect】
According to the configuration of the first aspect, since the stopper metal can be temporarily fixed to the mount body, it is possible to prevent the stopper metal and the mount body from being lost during transportation. Further, if the temporary fixing means is configured so that the bolt insertion hole of the stopper metal fitting and the hollow portion of the inner cylinder are substantially concentric in the temporarily fixed state, when the main fixing is performed, the bolt insertion hole and the inner part of the stopper metal fitting are formed inside. The bolts can be inserted into these holes as they are without positioning with the hollow portion of the cylinder, and the work of positioning both holes can be omitted.
In addition, it is possible to prevent the stopper metal from being temporarily fixed to the mount body by being inverted in the axial direction of the inner and outer cylinders.
[0041]
Therefore, the number of steps for assembling to the vehicle body frame can be reduced, the components can be prevented from being lost, and the stopper metal can be temporarily fixed to the mount body by being inverted in the axial direction of the inner and outer cylinders. Thus, it is possible to provide a vibration-proof mount that can avoid re-attachment of the stopper fitting due to the above, and can further improve the workability of the assembling work.
[0042]
According to the configuration of claim 2, the temporary fixing means includes a plurality of engaging portions and a plurality of engaged portions which can be engaged with each other on the mount main body and the stopper fitting, and the temporary fixing means is non-pointed on the mount main body side and the stopper fitting side. Since it is arranged so as to be symmetrical, the structure of the temporary fixing means can be simplified, and the stopper bracket can be mounted by simple work just by engaging the engaging part and the engaged part. The temporary fixing can be accurately performed on the main body without being reversed in the axial direction of the inner and outer cylinders.
[0043]
According to the configuration of the third aspect, the engaging portion is a temporary fixing pin projecting from the outer cylinder in the axial direction of the outer cylinder, and the engaged portion is an engaging hole formed in the stopper fitting. ,
The mount main body and the stopper metal can be temporarily fixed by a simple operation of merely engaging the temporary fixing pin with the engagement hole of the stopper metal.
[0044]
According to the configuration of claim 4, the plurality of engaging holes formed in the stopper fitting have different hole diameters, and the outer diameters of the plurality of temporary fixing pins projecting from the outer cylinder correspond to the respective engaging holes. The temporary fixing pin can be prevented from being erroneously engaged with an engaging hole different from the mating hole of the mating side, and the stopper metal can be mounted on the mount body in a desired posture. It can be temporarily fixed accurately.
[0045]
According to the configuration of claim 5, the temporary fixing pin is formed of a rubber-like elastic body, and a bulging portion that passes through the engaging hole while being elastically deformed is formed at a longitudinally intermediate portion or a distal end portion of the temporary fixing pin. As a result, it is possible to prevent the temporary fixing pin from coming out of the engagement hole. If the temporary fixing pin is integrally vulcanized with the rubber-like elastic body between the inner and outer cylinders, a molding step dedicated to the temporary fixing pin becomes unnecessary, and the number of molding steps can be reduced.
[0046]
According to the configuration of claim 6, the disengagement preventing wall for preventing the disengagement from the engagement hole is provided on the bulging portion in a posture substantially perpendicular to the axis of the temporary fixing pin, or temporarily toward the top. Since it is formed so as to have an inclined posture located on the base end side of the retaining pin, the temporary retaining pin can be made harder to fall out of the engagement hole.
[0047]
According to the configuration of claim 7, the stopper fitting has a bolt insertion hole, and the stopper fitting is pressed by the head of the bolt inserted into the bolt insertion hole and the inner cylinder or the nut screwed to the bolt, and Since it is configured to be in pressure contact with one end surface side of the cylinder, the stopper fitting can be firmly fixed to the inner cylinder.
[Brief description of the drawings]
FIG. 1 is a plan view of an anti-vibration mount. FIG. 2 is a cross-sectional view taken along line AA of FIG. 3. FIG. 3 is a bottom view of the anti-vibration mount. FIG. 4 is a cross-sectional view taken along line BB of FIG. FIG. 6 is a cross-sectional view taken along line CC of FIG. 6. FIG. 6 is a cross-sectional view taken along line DD of FIG. 3. FIG. 7 is a plan view of a stopper metal. FIG. FIG. 10 is a longitudinal sectional front view showing a state where a vibration isolating mount is attached to a vehicle body frame and a suspension member. FIG. 11 is a longitudinal sectional front view showing a conventional technique.
DESCRIPTION OF SYMBOLS 1 Mount main body 2 Stopper metal fitting 3 Inner cylinder 4 Outer cylinder 10 Mounting bolts 17A, 17B Engagement part (temporary fixing pin)
18 Swelling portions 20A, 20B Engaged portions (engagement holes)
26 rubber-like elastic body 30 disengagement prevention wall

Claims (7)

マウント本体と、このマウント本体に対するストッパ金具とから成り、前記マウント本体は、車体への取付け用けのボルトを挿通させる内筒と、この内筒を囲む外筒と、内外筒間に介在してこれらを連結するゴム状弾性体とから構成し、前記ストッパ金具は、前記内筒に挿通させたボルトで前記内筒の一端部に固定されるよう構成してある防振マウントであって、
前記ストッパ金具を前記マウント本体に仮止め可能で、かつ、前記ストッパ金具が前記マウント本体に前記内外筒の軸心方向で反転して仮止めされるのを回避可能な仮止め手段を設けてある防振マウント。
The mount body includes a mount body and a stopper fitting for the mount body, and the mount body is interposed between an inner cylinder through which a bolt for attachment to a vehicle body is inserted, an outer cylinder surrounding the inner cylinder, and the inner and outer cylinders. A rubber-like elastic body connecting them, wherein the stopper fitting is a vibration-proof mount configured to be fixed to one end of the inner cylinder with a bolt inserted through the inner cylinder,
Temporary fixing means capable of temporarily fixing the stopper metal to the mount main body and preventing the stopper metal from being temporarily fixed to the mount main body in the axial direction of the inner and outer cylinders is provided. Anti-vibration mount.
前記仮止め手段は、前記マウント本体とストッパ金具に、互いに係合自在な係合部と被係合部を複数個づつ、前記マウント本体側及びストッパ金具側でそれぞれ非点対称になるように振分け配設して構成してある請求項1記載の防振マウント。The temporary fixing means includes a plurality of engaging portions and a plurality of engaged portions which are mutually engageable with the mount body and the stopper fitting. The anti-vibration mount according to claim 1, wherein the anti-vibration mount is arranged and configured. 前記係合部は、前記外筒からこの外筒の軸心方向に突出する仮止めピンであり、前記被係合部は、前記ストッパ金具に形成した係合孔である請求項2記載の防振マウント。3. The prevention device according to claim 2, wherein the engaging portion is a temporary fixing pin projecting from the outer cylinder in the axial direction of the outer cylinder, and the engaged portion is an engaging hole formed in the stopper fitting. Shake mount. 前記ストッパ金具に形成した複数の係合孔の孔径をそれぞれ異ならせてあり、前記外筒から突出する複数の仮止めピンの外径を、各係合孔に対応させてそれぞれ異ならせてある請求項3記載の防振マウント。The plurality of engaging holes formed in the stopper fitting may have different hole diameters, and the outer diameters of the plurality of temporary fixing pins protruding from the outer cylinder may be different corresponding to the respective engaging holes. Item 4. An anti-vibration mount according to item 3. 前記仮止めピンをゴム状弾性体で形成するとともに、前記仮止めピンの長手方向中間部又は先端部に、弾性変形しながら前記係合孔を通過する膨出部を形成してある請求項3又は4記載の防振マウント。4. The temporary fixing pin is formed of a rubber-like elastic body, and a bulging portion that passes through the engagement hole while being elastically deformed is formed at a longitudinally intermediate portion or a distal end portion of the temporary fixing pin. Or the anti-vibration mount according to 4. 前記膨出部に、前記係合孔との係合の解除を阻止する係合解除阻止壁を、前記仮止めピンの軸心とほぼ直角な姿勢、又は頂部側ほど仮止めピンの基端側に位置する傾斜姿勢になるように形成してある請求項5記載の防振マウント。In the bulging portion, a disengagement preventing wall for preventing disengagement with the engaging hole is provided in a posture substantially perpendicular to the axis of the temporary fixing pin, or the base side of the temporary fixing pin is closer to the top. The anti-vibration mount according to claim 5, wherein the anti-vibration mount is formed so as to have an inclined posture located at a position indicated by the arrow. 前記ストッパ金具はボルト挿通孔を備え、このボルト挿通孔及び前記内筒に挿通させたボルトの頭部、又は前記ボルトに螺合したナットで前記ストッパ金具が押圧されて、前記内筒の一端面側に圧接するように構成してある請求項1〜6のいずれかひとつに記載の防振マウント。The stopper fitting has a bolt insertion hole, and the stopper fitting is pressed by the bolt insertion hole and a head of the bolt inserted into the inner cylinder, or a nut screwed into the bolt, and one end surface of the inner cylinder. The anti-vibration mount according to any one of claims 1 to 6, wherein the anti-vibration mount is configured to be pressed against the side.
JP2002196232A 2002-07-04 2002-07-04 Vibration isolating mount Pending JP2004036796A (en)

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Publication number Priority date Publication date Assignee Title
CN111981071A (en) * 2020-07-21 2020-11-24 浙江零跑科技有限公司 Rubber vibration isolation pad structure used in front cabin of automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111981071A (en) * 2020-07-21 2020-11-24 浙江零跑科技有限公司 Rubber vibration isolation pad structure used in front cabin of automobile

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