JPH086774B2 - How to prevent the cushion rubber from slipping out - Google Patents
How to prevent the cushion rubber from slipping outInfo
- Publication number
- JPH086774B2 JPH086774B2 JP2103732A JP10373290A JPH086774B2 JP H086774 B2 JPH086774 B2 JP H086774B2 JP 2103732 A JP2103732 A JP 2103732A JP 10373290 A JP10373290 A JP 10373290A JP H086774 B2 JPH086774 B2 JP H086774B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- cylinder
- press
- cushion rubber
- 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.)
- Expired - Fee Related
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Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、自動車のサスペンションメンバー等の相手
メンバーに圧入して使用するクッションゴムを該相手メ
ンバーに圧入するにあたり、同相手メンバーよりの抜け
出しを効果的に防止する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is to prevent a cushion rubber used by being press-fitted to an opponent member such as a suspension member of an automobile from being pushed out from the opponent member. It relates to effective prevention methods.
（従来の技術） 従来、自動車のサスペンションメンバーやデフマウン
トメンバーのボディマウント部分ならびにリングブッシ
ュに圧入して使用するインシュレータ等のクッションゴ
ムとして、例えば、第６図（イ）に示す如く、金属製の
内筒１の外側に、ゴム３と、その外側に軸方向縦割りに
２分割した金属製等の外筒２′を備え、上記ゴム３の加
硫により一体に接着して形成したものがあり、前記２分
割した外筒２′部分を相手メンバー、この場合はサスペ
ンションメンバーの端部穴に溶着した金属製真円の取着
筒５内に圧入して使用するが、このとき該取着筒５より
の抜け出しを防止するために第６図（イ）及び（ロ）に
図示するように上記外筒２′の２分割した半円筒状をな
す左半部2a′及び右反部2b′の各外側曲率半径R2を取着
筒５の内側曲率半径Ｒと等しく設け、それら左，右半部
2a′,2b′の分割対向面間に隙間４が存する状態で内筒
１と外筒２′間の空間部にゴム３を配して加硫接着し
て、第６図（イ）におけるＹ軸方向での外筒２′の左，
右半部2a′,2b′の内面間の長さが取着筒５の内径Ａよ
りも隙間４の巾αだけ長くなるように形成している。(Prior Art) Conventionally, as a cushion rubber for an insulator or the like which is used by press-fitting into a body mount portion of a vehicle suspension member or a diff mount member, and a ring bush, a cushion rubber made of metal, for example, as shown in FIG. There is one in which a rubber 3 is provided outside the inner cylinder 1, and an outer cylinder 2 ′ made of metal or the like, which is divided into two longitudinally divided axially, is provided outside the inner cylinder 1, and the rubber 3 is integrally bonded by vulcanization. The two divided outer cylinders 2'are used by press-fitting them into the fitting cylinder 5 of a perfect metal circle which is welded to the end hole of the mating member, in this case the suspension member. As shown in FIGS. 6 (a) and 6 (b), the left half part 2a 'and the right half part 2b' of the outer cylinder 2'which are divided into two semi-cylindrical shapes in order to prevent slipping out of each outer radius of curvature R 2 attached tube 5 Equal provided an inner radius of curvature R, which left and right half portion
A rubber 3 is placed in the space between the inner cylinder 1 and the outer cylinder 2'in a state in which a gap 4 exists between the divided facing surfaces of 2a 'and 2b', and vulcanization adhesion is performed, and Y in FIG. Left of the outer cylinder 2'in the axial direction,
The length between the inner surfaces of the right half portions 2a ', 2b' is formed to be longer than the inner diameter A of the attachment cylinder 5 by the width α of the gap 4.
そして、このように形成されたクッションゴムＭ′
は、これを取着筒５内に圧入する場合、第６図（イ）に
示すように２分割した外筒２′の左，右半部2a′,2b′
を図示のP1,P2方向に同時に押圧して内側のゴム３を圧
縮した状態で取着筒５内に嵌入するが、このとき上記圧
縮により生ずるゴム３の反撥弾力が外筒２′の左，右半
部2a′,2b′のＹ軸方向の外面を夫々取着筒５の内面に
押し付けて抜け出しを防止するようになっている。Then, the cushion rubber M'formed in this way
When this is press-fitted into the attachment cylinder 5, the left and right halves 2a ', 2b' of the outer cylinder 2'which is divided into two as shown in FIG.
Are simultaneously pressed in the P 1 and P 2 directions shown in the figure to fit the inside rubber 3 into the mounting cylinder 5 in a compressed state. At this time, the repulsive force of the rubber 3 generated by the compression is applied to the outer cylinder 2 ′. The outer surfaces of the left and right halves 2a ', 2b' in the Y-axis direction are pressed against the inner surfaces of the attachment cylinder 5, respectively, to prevent them from coming out.
（発明が解決しようとする課題） ところが、かかる従来のクッションゴムＭ′にあって
は、第６図（イ），（ロ）に示す如く、前記各半円筒状
外2a′,2b′の外側曲率半径R2は取着筒５の内側曲率半
径Ｒと等しく形成されており、また取着筒５と同じよう
に金属製で、かつその外面も平滑となっているために、
取着筒５内面との間の摩擦力は余り大きくなく、抜け出
し防止は専らゴム３の反撥弾力が担持しているものであ
るから、これを自動車に組付けた状態で凹凸路面の悪路
を走行し自動車にバウンド，リバウンド力が発生した場
合、即ち、第６図（イ）に示す如くP1,P2両方向の交互
繰り返しによる横振動と、これに直交する方向の縦振動
とが加わった状態では、例えばP1なる方向の外力が内筒
１に加わった時には左半部外筒2a′外面と取着筒５内面
との間に生じる摩擦力が減じて、更に同時に軸方向の外
力が加わったときには、同じく取着筒５内で右半部外筒
2b′が僅かにせり上がり或いはせり下がってくる。(Problems to be solved by the invention) However, in such a conventional cushion rubber M ′, as shown in FIGS. 6 (a) and 6 (b), the outside of each of the semi-cylindrical outer portions 2a ′, 2b ′. The radius of curvature R 2 is formed to be equal to the inner radius of curvature R of the attachment cylinder 5, and, like the attachment cylinder 5, is made of metal and its outer surface is also smooth,
The frictional force between the inner surface of the attachment cylinder 5 is not so large, and the slip-out prevention is carried out only by the repulsive elastic force of the rubber 3. When the vehicle travels and bouncing or rebounding force is generated, that is, lateral vibration due to alternating repetition of P 1 and P 2 directions and longitudinal vibration in a direction orthogonal thereto are added as shown in Fig. 6 (a). In this state, for example, when an external force in the direction P 1 is applied to the inner cylinder 1, the frictional force generated between the outer surface of the left half outer cylinder 2a ′ and the inner surface of the attachment cylinder 5 is reduced, and at the same time, the external force in the axial direction is increased. When added, the right half outer cylinder is also in the attachment cylinder 5.
2b 'rises or falls slightly.
また、これとは逆にP2なる外力が内筒１に加わったと
きには、同じく取着筒５内で右半部外筒2b′が僅かにせ
り上がり或いはせり下がってくる。On the contrary, when an external force P 2 is applied to the inner cylinder 1, the right half outer cylinder 2b ′ also slightly rises or lowers in the attachment cylinder 5.
そして、このような現象が繰り返されると、当然、ク
ッションゴムＭ′全体が相手メンバー５に対し軸方向に
摺動してきて遂には抜け出してしまい、折角のゴム３の
反撥弾力による抜け出し防止の効果が挙がらないという
問題を生じる。When such a phenomenon is repeated, naturally, the entire cushion rubber M ′ slides in the axial direction with respect to the opponent member 5 and finally comes out, so that there is an effect of preventing the rubber 3 from coming out due to the repulsive elastic force. The problem of not being raised arises.
そこで、このような不都合が生じないようにするた
め、クッションゴムＭ′の、特にゴム３の軸方向及び軸
直角方向に対するばね定数を上げることが一応考えられ
るが、余り大きく上がるとクッションゴムＭ′本来の防
振性能を低減させるので、限度以上にばね定数を上げる
ことは不可能であり、結局、抜き出し防止効果を満足す
るには至らない場合が多い状況である。Therefore, in order to prevent such an inconvenience from occurring, it is conceivable to increase the spring constant of the cushion rubber M ′, particularly in the axial direction and the direction perpendicular to the axis of the rubber 3, but if it increases too much, the cushion rubber M ′ will increase. Since the original anti-vibration performance is reduced, it is impossible to increase the spring constant beyond the limit, and in many cases, the extraction prevention effect cannot be satisfied in the end.
本発明は、かかる実状に鑑みてなされたもので、相手
メンバーに圧入されるクッションゴムと相手メンバーの
内側曲率半径とを比較考慮すると共に、内外筒間のゴム
の圧縮反力を所定範囲内で高めることにより、圧入時に
このゴムの反力と外筒自体に生ずる弾性力をも活用し
て、相手メンバーからの抜け出し防止力をより向上せし
めることを目的とするものである。The present invention has been made in view of the above circumstances, and comparatively considers the cushion rubber that is press-fitted into the partner member and the inner radius of curvature of the partner member, and the compression reaction force of the rubber between the inner and outer cylinders within a predetermined range. By increasing the height, the reaction force of the rubber at the time of press-fitting and the elastic force generated in the outer cylinder itself are also utilized to further improve the force for preventing the member from slipping out.
（課題を解決するための手段） すなわち、上記目的を適合する本発明のクッションゴ
ムの抜け出し防止方法は、 内筒と、縦割りに２分割した外筒との間の空間部にゴ
ムを介在させて内筒と外筒を加硫接着する一方、上記２
分割した外筒の分割対向面間に所要の間隙を設け、上記
分割外筒を相手メンバーに圧入して使用するクッション
ゴムにおいて、 上記内、外筒間のゴムに、上記外筒を分割した面と略
平行な１対の平板状スペーサ金具を内筒を挟み対向する
ように埋設すると共に、このスペーサ金具と対向する内
筒の外面に、圧入の挿入側が細くなるテーパを形成し、
さらに各分割外筒の内側曲率半径を相手メンバーの内側
曲率半径よりもやや大きくなるように設け、 相手メンバーに圧入したときに外筒の外側曲率半径を
相手メンバーの内側曲率半径にたわませて変化させ、か
つ内、外筒間のゴムを圧縮し、上記外筒の拡開復元しよ
うとする弾性力と上記スペーサ金具により高めた内、外
筒間ゴムの圧縮反力とを活用して相手メンバーからの抜
け出しを防止し、他方、前記内筒のテーパによって挿入
側の内、外筒間ゴムの断面積を増やし、その圧縮反力を
下げることにより上記圧入を円滑に行わしめることを特
徴とする。(Means for Solving the Problem) That is, according to the method for preventing the cushion rubber from coming off according to the present invention, which is adapted to the above object, the rubber is interposed in the space between the inner cylinder and the outer cylinder divided into two vertically. While vulcanizing and adhering the inner and outer cylinders,
A cushion rubber that is used by press-fitting the divided outer cylinder into a mating member by providing a required gap between the divided facing surfaces of the divided outer cylinders. A surface obtained by dividing the outer cylinder into the rubber between the inner and outer cylinders. And a pair of flat plate-shaped spacer fittings that are substantially parallel to each other are embedded so as to face each other across the inner cylinder, and a taper is formed on the outer surface of the inner cylinder facing the spacer fitting so that the press-fitting insertion side becomes thinner.
Furthermore, the inner radius of curvature of each split outer cylinder is set to be slightly larger than the inner radius of curvature of the partner member, and when press-fitted into the partner member, the outer radius of curvature of the outer cylinder is bent to the inner radius of curvature of the partner member. By utilizing the elastic force of changing and compressing the rubber between the inner and outer cylinders to expand and restore the outer cylinder and the compression reaction force of the rubber between the inner and outer cylinders increased by the spacer fitting, It is characterized by preventing the member from slipping out, and by increasing the cross-sectional area of the rubber between the inner and outer cylinders on the insertion side by the taper of the inner cylinder and lowering the compression reaction force, the press-fitting is smoothly performed. To do.
（作用） 上記の如き本発明のクッションゴムの抜け出し防止方
法は，内筒と、縦割りに２分割した外筒との間の空間部
にゴムを介在させたクッションゴムの前記２分割した外
筒の分割対向面間に所要の間隙を設ける一方、各分割外
筒の内側曲率半径を相手メンバーの内側曲率半径よりも
やや大きくなるように設けて相手メンバーに圧入したと
きに外筒の外側曲率半径を相手メンバーの内側曲率半径
に変化させ、外筒の弾性力を活用して相手メンバーから
の抜け出しを防止するようになしたもので、相手メンバ
ーへの圧入は、２分割した外筒の各半円筒体の外周を軸
中心方向に狭窄しながら相手メンバーへの挿入可能な外
径となるまで分割対向面を近接させる方向に内側ゴムを
圧縮しつつ弾性変形させることにより可能であると共
に、圧入された各円筒状の外筒は夫々前記弾性変形され
た狭窄形状から元の相手メンバーよりも大きな曲率半径
にまで復元せんとする強大な外方に拡開する方向での弾
性力を常備する。(Operation) In the method for preventing the cushion rubber from coming off according to the present invention as described above, the cushion rubber is interposed in the space between the inner cylinder and the vertically divided outer cylinder. While the required gap is provided between the opposing surfaces of the split outer cylinders, the outer radius of curvature of the outer cylinder is set when the inner radius of curvature of each split outer cylinder is set slightly larger than the inner radius of curvature of the mating member and press fit into the mating member. Is changed to the inner radius of curvature of the partner member, and the elastic force of the outer cylinder is used to prevent the member from slipping out of the partner member. It is possible by elastically deforming the inner rubber while compressing the inner rubber in the direction in which the divided facing surfaces approach each other until the outer diameter of the cylindrical body is narrowed in the axial center direction until the outer diameter is insertable into the mating member. In addition, each cylindrical outer cylinder always has a strong elastic force in the direction of expanding outwardly, which restores from the elastically deformed narrowed shape to a larger radius of curvature than the original mating member.
そして、内、外筒間ゴムに平板状スペーサ金具を増し
埋設したことにより、このゴムはばね定数が通常の約2.
5〜５倍となり、これによりこのゴムの圧縮反力を増大
せしめることが可能である。The rubber between the inner and outer cylinders was additionally embedded with a flat spacer metal fitting, so that this rubber has a normal spring constant of about 2.
It becomes 5 to 5 times, and this makes it possible to increase the compression reaction force of this rubber.
すなわち、本発明では、上記外筒の拡開作用とこの増
大した内、外筒間ゴムの圧縮反力との相乗効果により、
外筒の外周面は相手メンバーの内周面に強圧されて両者
の間には抜け出しに抗する摩擦力が倍加じて生ずること
になり、これが相手メンバー内での外筒のせり上がり、
下がり等の摺動を抑止してクッションゴムの抜け出しを
効果的に防止する。That is, in the present invention, due to the synergistic effect of the expansion action of the outer cylinder and the increased compression reaction force of the rubber between the outer cylinders,
The outer peripheral surface of the outer cylinder is strongly pressed by the inner peripheral surface of the other member, and a frictional force against the slip-out is doubled between them, which causes the outer cylinder to rise in the other member.
Prevents the cushion rubber from slipping out effectively by suppressing sliding such as falling.
一方、本発明のクッションゴムでは、上記スペーサ金
具と対向する内筒の外面に圧入の挿入側が細いテーパを
付したことにより、この挿入側においては内、外筒間ゴ
ムの断面積を増やし、その圧縮反力を下げることが可能
であり、上記の如くスペーサ金具によりゴムの圧縮反力
を上げ抜け防止力を確保しながらも、圧入時は外筒の挿
入先端側を圧縮し易くして圧入作業を円滑に行わしめる
ことが可能である。On the other hand, in the cushion rubber of the present invention, since the press-fitting insertion side has a thin taper on the outer surface of the inner cylinder facing the spacer fitting, the cross-sectional area of the rubber between the inner and outer cylinders is increased on this insertion side. It is possible to lower the compression reaction force, and as described above, the spacer fitting increases the compression reaction force of the rubber to secure the pull-out prevention force, but at the time of press fitting, the insertion tip side of the outer cylinder is easily compressed and the press fitting operation is performed. Can be carried out smoothly.
そしてさらに、上記内筒のテーパは、上記スペーサ金
具の埋設によって上昇した上記内、外筒間ゴムのばね定
数をこのテーパ部分では下げることが可能であり、これ
により上記の如くゴムの圧縮反力を上げて抜け防止力を
確保しながらも、クッションゴム本来の防振性能を維持
することが可能である。Further, the taper of the inner cylinder makes it possible to lower the spring constant of the rubber between the inner cylinder and the outer cylinder raised by the embedding of the spacer fitting at this taper portion, whereby the compression reaction force of the rubber as described above. It is possible to maintain the original anti-vibration performance of the cushion rubber while raising the to secure the pull-out prevention force.
（実施例） 以下、本発明の実施例について添付図面を参照しつつ
詳細に説明する。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the accompanying drawings.
第１図は本発明によるクッションゴムの一実施例を示
す上面図、第２図は第１図のＡ−Ａ線矢視断面図、第３
図は第１図のクッションゴムの相手メンバーへの圧入方
向を示す斜視図である。FIG. 1 is a top view showing an embodiment of the cushion rubber according to the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG.
The figure is a perspective view showing the direction of press-fitting the cushion rubber of FIG.
これら図においてＭは、自動車のサスペッションメン
バーＳと車体間の防振支持に使用するクッションゴムで
あって、内筒１と、その外側に一体固着した弾性部材と
してのインシュレータゴム３と、その外側に一体固着し
た軸方向縦割りに所要間隙４を有して２分割されてなる
外筒２とからなっており、このクッションゴムＭは相手
メンバー、この場合はサスペンションメンバーＳの端部
穴に溶着した金属製真円の取着筒５内に外筒２部分を圧
入すると共に、内筒１に挿通した図示しないボルトによ
って車体に固定させて防振材として用いられる。In these drawings, M is a cushion rubber used for vibration-proof support between the suspension member S of the automobile and the vehicle body, and includes an inner cylinder 1, an insulator rubber 3 as an elastic member integrally fixed to the outer side thereof, and the inner rubber 1. It is composed of an outer cylinder 2 which is integrally fixed to the outside and is divided into two parts with a required gap 4 in the axial lengthwise division. This cushion rubber M is provided in an end hole of a mating member, in this case, a suspension member S. The outer cylinder 2 is press-fitted into the welded metal perfect circular attachment cylinder 5, and is fixed to the vehicle body by a bolt (not shown) inserted in the inner cylinder 1 to be used as a vibration isolator.
そして、前記サスペンションメンバー等には、クッシ
ョンゴムＭの軸方向，軸直角方向（径方向）を含む各方
向の力及び回転モーメントが加わるが、これらはクッシ
ョンゴムＭを通して車体に伝えられる。Then, the suspension member and the like are subjected to forces and rotational moments in each direction including the axial direction of the cushion rubber M and the direction perpendicular to the axis (radial direction), which are transmitted to the vehicle body through the cushion rubber M.
上記クッションゴムＭにおいて内筒１と外筒２とは金
属等の成型により外筒２の内径寸法R1を除いては第１
図，第２図及び第３図に示す如く既知のクッションゴム
と同様に製作される。In the cushion rubber M, the inner cylinder 1 and the outer cylinder 2 are formed by molding a metal or the like except for the inner diameter dimension R 1 of the outer cylinder 2.
It is manufactured in the same manner as the known cushion rubber as shown in FIGS.
そして、本発明の要部をなすクッションゴムＭの外筒
２は、縦割りに２分割した左半部2a、右半部2bともにそ
の内側曲率半径R1が、第１〜３図に示す如く相手メンバ
ー、即ちこの場合はサスペンションメンバーＳ端部の真
円の取着筒５の内側曲率半径Ｒよりもやや大きな半円筒
状に適宜肉厚を有して成形されている。The outer cylinder 2 of the cushion rubber M, which is an essential part of the present invention, has an inner curvature radius R 1 of both the left half portion 2a and the right half portion 2b, which are vertically divided into two, as shown in FIGS. It is formed in a semi-cylindrical shape with a suitable thickness, which is slightly larger than the inner radius of curvature R of the mating member 5, which is a perfect circle at the end of the suspension member S in this case.
更に、上記各半円筒状外筒2a,2bは、真円の取着筒５
が例えばその内側曲率半径が35.8mmで内径が71.6mmの場
合、各半円筒状外筒2a,2bの内側曲率半径を例えば37.8m
mとし、内筒１との間に配したゴム３の加硫接着により
完成されたクッションゴムＭ全体において上記各半円筒
状外筒2a,2bの対向分割面を結ぶ線に中心で直交する方
向の外径を肉厚も含み81.6mmと大きく設けている。な
お、この場合の各半円筒状外筒2a,2bの肉厚は3mmで、ま
た両者の対向分割面間の間隙４の巾は10mm程度に設けて
いる。Further, each of the semi-cylindrical outer cylinders 2a and 2b is a perfect circular attachment cylinder 5.
For example, when the inner radius of curvature is 35.8 mm and the inner diameter is 71.6 mm, the inner radius of curvature of each semi-cylindrical outer cylinder 2a, 2b is, for example, 37.8 m.
m, and a direction perpendicular to the line connecting the opposing dividing surfaces of the semi-cylindrical outer cylinders 2a, 2b in the entire cushion rubber M completed by vulcanization and adhesion of the rubber 3 arranged between the inner cylinder 1 and the inner cylinder 1. It has a large outer diameter of 81.6 mm including the wall thickness. In this case, the thickness of each of the semi-cylindrical outer cylinders 2a, 2b is 3 mm, and the width of the gap 4 between the opposing divided surfaces of the two is about 10 mm.
一方、上記インシュレータゴム３には、図１、図２に
示すように前記外筒２を分割した面と略平行な１対の平
板状スペーサ金具６が内筒１を挟み対向するように埋設
されると共に、図２に示す如く、このスペーサ金具６と
対向する内筒１の外面には、圧入の挿入側が細くなるテ
ーパ７が形成されている。On the other hand, in the insulator rubber 3, as shown in FIGS. 1 and 2, a pair of flat plate-shaped spacer fittings 6 which are substantially parallel to the divided surface of the outer cylinder 2 are embedded so as to face each other with the inner cylinder 1 interposed therebetween. In addition, as shown in FIG. 2, a taper 7 is formed on the outer surface of the inner cylinder 1 facing the spacer fitting 6 so that the insertion side for press-fitting becomes narrower.
しかして、上記の如く形成されたクッションゴムＭ
は、第３図に示す如く、自動車のサスペンションメンバ
ーＳ端部の取着筒５に対し、矢印方向に圧入して装着さ
れるが、この装着に際しては、各半円筒状外筒2a,2bの
外周を、夫々軸中心方向に押圧してたわませながら、取
着筒５内への挿入可能な外径となるまで分割対向面を近
接させる方向に内側ゴム３を圧縮して弾性変形させた状
態で取着筒５内に挿入したのち押圧力を解くことにより
可能であり、そして圧入されたクッションゴムＭは、各
半円筒状外筒2a,2bが前記弾性変形された圧縮形状から
元の、取着筒５よりは大きな内径の曲率半径にまで復元
拡開せんとする強大な外方に向かう弾性力を常備する。Thus, the cushion rubber M formed as described above
As shown in FIG. 3, it is press-fitted in the direction of the arrow to the attachment cylinder 5 at the end of the suspension member S of the automobile. At this time, the semi-cylindrical outer cylinders 2a, 2b are attached. The inner rubber 3 was elastically deformed by compressing the inner periphery 3 in the direction in which the divided facing surfaces are brought close to each other until the outer diameters are such that the outer diameters can be inserted into the attachment tube 5 while bending the outer periphery in the axial direction. It is possible to insert the cushion rubber M into the attachment tube 5 in that state and then release the pressing force, and the cushion rubber M press-fitted to the original shape from the compression shape in which the semi-cylindrical outer cylinders 2a and 2b are elastically deformed. , And has a strong outward elastic force to restore and expand to a radius of curvature having an inner diameter larger than that of the attachment cylinder 5.
そして、前述の如くインシュレータゴム３に平板状ス
ペーサ金具６を埋設したことにより、このゴム３のばね
定数を通常の約2.5〜５倍とすることができ、これによ
りこのゴム３の圧縮反力を大幅に増大せしめることが可
能である。By embedding the flat plate-shaped spacer fitting 6 in the insulator rubber 3 as described above, the spring constant of the rubber 3 can be increased to about 2.5 to 5 times the normal value, whereby the compression reaction force of the rubber 3 is increased. It is possible to greatly increase it.
即ち、上記実施例では、上記各半円筒状外筒2a,2bの
拡開作用と上記インシュレータゴム３の増大した圧縮反
力との相乗効果により、半円筒状外筒2a,2bの外周が取
着筒５の内周に強力に押圧し密着して、両者間での抜け
出しに抗する摩擦力を大きく増加させているのである。That is, in the above embodiment, the outer circumference of the semi-cylindrical outer cylinders 2a, 2b is removed by the synergistic effect of the expanding action of the semi-cylindrical outer cylinders 2a, 2b and the increased compression reaction force of the insulator rubber 3. The inner circumference of the mounting cylinder 5 is strongly pressed and brought into close contact with the inner circumference, thereby greatly increasing the frictional force against withdrawal between the two.
因みに本発明のものと従来のクッションゴムとを第４
図に示す取着状態において、各たわみ量での抜け出しに
至る抜け荷重力を比較実験したところ、第５図に示す如
き結果を得た。Incidentally, the present invention and the conventional cushion rubber are
In the attached state shown in the figure, the pull-out load force leading to the pull-out at each deflection amount was subjected to a comparative experiment, and the result as shown in FIG. 5 was obtained.
上記第５図の図表からも明らかなように本発明に係る
クッションゴムの抜け出し防止方法になるものは、従来
のクッションゴムに比し、抜け出しに要する抜き荷重に
おいて、たわみ量が5mm〜40mmまでの各場合ともすべて
倍の抜け荷重力を要しており、このことから従来品に比
べて抜け出しに耐える力が倍加して効果の大なることが
確認される。As is clear from the chart of FIG. 5, the method for preventing the cushion rubber from slipping out according to the present invention has a deflection amount of 5 mm to 40 mm in comparison with the conventional cushion rubber under the pulling load required for slipping out. In each case, a double pull-out load force is required, which confirms that the force withstanding pull-out is doubled and the effect is greater than that of conventional products.
一方、上記本発明実施例のクッションゴムでは、上記
スペーサ金具６と対向する内筒１の外面に圧入の挿入側
が細いテーパ７を付しており、これにより、この挿入側
においてはインシュレータゴム３の断面積を増やし、そ
の圧縮反力を下げることが可能であることから、前記の
如くスペーサ金具６によりゴム３の圧縮反力を上げて抜
け防止力を確保しながらも、圧入時は半円筒状外筒2a,2
bの挿入先端側を圧縮し易くして圧入作業を円滑に行わ
しめることが可能である。On the other hand, in the cushion rubber of the embodiment of the present invention, the outer surface of the inner cylinder 1 facing the spacer fitting 6 has a thin taper 7 on the insertion side for press-fitting. Since it is possible to increase the cross-sectional area and reduce the compression reaction force, the spacer metal member 6 increases the compression reaction force of the rubber 3 to secure the pull-out prevention force as described above, but at the time of press-fitting it is a semi-cylindrical shape. Outer cylinder 2a, 2
It is possible to facilitate the press-fitting work by making it easier to compress the insertion tip side of b.
そしてさらに、上記内筒１のテーパ７は、上記スペー
サ金具６の埋設によって上昇した上記インシュレータゴ
ム３のばね定数をこのテーパ部分では下げることが可能
であり、これにより上記の如くゴム３の圧縮反力を上げ
て抜け防止力を確保しながらも、クッションゴム本体の
防振性能を維持することが可能である。Further, the taper 7 of the inner cylinder 1 can reduce the spring constant of the insulator rubber 3 which has risen due to the embedding of the spacer fitting 6 at this taper portion, whereby the compression resistance of the rubber 3 is increased as described above. It is possible to maintain the anti-vibration performance of the cushion rubber body while increasing the force to secure the pull-out prevention force.
（発明の効果） 以上に詳述した如く、本発明のクッションゴムの抜け
出し防止方法によれば、内筒と、縦割りに２分割した外
筒との間の空間部にゴムを介在させて内筒と外筒を加硫
接着する一方、上記２分割した外筒の分割対向面間に所
要の間隙を設け、相手メンバーに圧入して使用するクッ
ションゴムにおいて、上記各分割外筒の内側曲率半径を
相手メンバーの内側曲率半径よりもやや大きくなるよう
に設けて相手メンバーに圧入したときに外筒の外側曲率
半径を相手メンバーの内側曲率半径に変化させ、外筒の
拡開復元しようとする弾性力を活用して相手メンバーか
らの抜け出しを防止する方法であるから、相手メンバー
への装着は、クッションゴムの外筒を内側のゴムを圧縮
しながら外周より軸心方向に押圧してたわませたまま挿
入するだけで容易に圧入し装着することができる。(Effects of the Invention) As described in detail above, according to the method for preventing the cushion rubber from coming off according to the present invention, the rubber is interposed in the space between the inner cylinder and the outer cylinder divided into two vertically. In the cushion rubber to be used by vulcanizing and adhering the cylinder and the outer cylinder while providing a required gap between the opposing surfaces of the two divided outer cylinders and press-fitting into the mating member, the inner curvature radius of each of the outer cylinders is divided. Is set to be slightly larger than the inner member's inner radius of curvature, and when the outer member's outer radius of curvature is changed to the inner member's inner radius of curvature when press-fitted into the partner's member, the elasticity that tries to expand and restore the outer member This is a method of using the force to prevent the member from slipping out, so when attaching to the partner member, press the outer cylinder of the cushion rubber in the axial direction from the outer periphery while compressing the inner rubber to bend it. Insert It can be easily press fitted and installed.
しかも本発明では、内外筒間ゴムに平板状スペーサ金
具を埋設したことにより、このゴムの圧縮反力を大幅に
増大させることが可能であり、外筒自体の拡開復元しよ
うとする強力な弾性力と上記増大したゴムの圧縮反力と
の相乗効果により、抜け止めに機能する大きな摩擦力を
得ることが可能となり、その結果、従来のものに比して
倍加する抜け出し防止力を常備し得ることにより、相手
メンバーよりのクッションゴムの抜け出し確実に防止す
るとの顕著な効果を奏し得る。Moreover, according to the present invention, the compression reaction force of the rubber can be significantly increased by embedding the flat plate-shaped spacer fitting in the rubber between the inner and outer cylinders, and the strong elasticity for expanding and restoring the outer cylinder itself can be achieved. Due to the synergistic effect of the force and the increased rubber compression reaction force, it becomes possible to obtain a large frictional force that functions to prevent slipping out, and as a result, it is possible to always have a slip-out prevention force that doubles as compared with the conventional one. As a result, a remarkable effect of reliably preventing the cushion rubber from coming out of the opponent member can be obtained.
また、本発明では、上記スペーサ金具と対向する内筒
の外面に圧入の挿入側が細いテーパを付したことによ
り、この挿入側においては内、外筒間ゴムの圧縮反力を
下げることが可能であり、上記の如くスペーサ金具によ
りゴムの圧縮反力を上げ抜け防止を確保しながらも、圧
入時は外筒の挿入先端側を圧縮し易くして圧入作業を円
滑に行わしめ、さらに、上記スペーサ金具の埋設によっ
て上昇した上記内、外筒間ゴムのばね定数をこのテーパ
部分で下げることにより、上記の如く抜け防止力を確保
しながらも、クッションゴム本来の防振性能を維持する
ことが可能である。Further, in the present invention, the outer surface of the inner cylinder facing the spacer fitting is tapered on the insertion side for press-fitting, so that the compression reaction force of the rubber between the inner and outer cylinders can be reduced on this insertion side. As described above, the spacer metal fittings increase the compression reaction force of the rubber to ensure prevention of slipping out, and at the time of press-fitting, the insertion tip side of the outer cylinder is easily compressed to facilitate press-fitting work. By lowering the spring constant of the rubber between the inner and outer cylinders raised by burying the metal fittings at this taper part, it is possible to maintain the original anti-vibration performance of the cushion rubber while securing the pull-out prevention force as described above. Is.
第１図は本発明によるクッションゴムの一実施例を示す
上面図、第２図は第１図のＡ−Ａ線矢視断面図、第３図
は第１図のクッションゴムの相手メンバーへの圧入方向
を示す斜視図、第４図は第５図の比較実験時のクッショ
ンゴムに対する負荷状態を示す断面図、第５図は第４図
の状態での本発明と従来のものとの抜き荷重の比較実験
結果を示す図表、第６図（イ）は従来のクッションゴム
の一例を示す上面図、第６図（ロ）は第６図（イ）のク
ッションゴムを圧入する相手メンバーの上面図である。 M,M′……クッションゴム、 Ｓ……サスペンションメンバー、 １……内筒、 2,2′……外筒、 2a,2a′……左半部の半円筒状外筒、 2b,2b′……右半部の半円筒状外筒、 ３……ゴム、 ４……間隙、 ５……相手メンバー（取着筒）、 ６……平板状スペーサ金具、 ７……内筒のテーパ、FIG. 1 is a top view showing an embodiment of the cushion rubber according to the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 shows the cushion rubber of FIG. FIG. 4 is a perspective view showing the press-fitting direction, FIG. 4 is a cross-sectional view showing a load state on the cushion rubber in the comparative experiment of FIG. 5, and FIG. 5 is a pulling load of the present invention and the conventional one in the state of FIG. Fig. 6 (a) is a top view showing an example of a conventional cushion rubber, and Fig. 6 (b) is a top view of the mating member into which the cushion rubber of Fig. 6 (a) is press-fitted. Is. M, M '... Cushion rubber, S ... Suspension member, 1 ... Inner cylinder, 2,2' ... Outer cylinder, 2a, 2a '... Left half semi-cylindrical outer cylinder, 2b, 2b' …… Right half semi-cylindrical outer cylinder, 3 …… Rubber, 4 …… Gap, 5 …… Mating member (attachment cylinder), 6 …… Flat spacer metal fitting, 7 …… Inner cylinder taper,
───────────────────────────────────────────────────── フロントページの続き (72)発明者 原田 闊 愛知県西加茂郡三好町大字打越字生賀山３ 番地 東洋ゴム工業株式会社自動車部品技 術センター内 (72)発明者 大谷 和平 愛知県西加茂郡三好町大字打越字生賀山３ 番地 東洋ゴム工業株式会社自動車部品技 術センター内 (72)発明者 鳥海 真幸 愛知県西加茂郡三好町大字打越字生賀山３ 番地 東洋ゴム工業株式会社自動車部品技 術センター内 (56)参考文献 実開 昭52−74993（ＪＰ，Ｕ) 実開 昭60−7432（ＪＰ，Ｕ) 実公 昭59−27556（ＪＰ，Ｙ２) 実公 昭54−24234（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Harada, Aichi Prefecture, Miyoshi-cho, Nishikamo-gun, Uchikoshi, No. 3 Igayama, Toyo Tire & Rubber Co., Ltd. (72) Inventor, Kahei Otani Nishikamo-gun, Aichi 3 Yoshigayama, Mitsuki-cho, Ikayama Toyo Tire & Rubber Co., Ltd. (72) Inventor, Masayuki Toriumi 3 Miyoshi-cho, Nishikamo-gun, Aichi Prefecture 3 Daikachi, Okayama, Toyo Tire & Rubber Co., Ltd. Inside the surgical center (56) References Open 52-74993 (JP, U) Open 60-7432 (JP, U) Open 59-27556 (JP, Y2) Open 54-24234 (JP, U) Y2)
Claims (1)
空間部にゴムを介在させて内筒と外筒を加硫接着する一
方、上記２分割した外筒の分割対向面間に所要の間隙を
設け、上記分割外筒を相手メンバーに圧入して使用する
クッションゴムにおいて、上記内、外筒間のゴムに、上
記外筒を分割した面と略平行な１対の平板状スペーサ金
具を内筒を挟み対向するように埋設すると共に、このス
ペーサ金具と対向する内筒の外面に、圧入の挿入側が細
くなるテーパを形成し、さらに各分割外筒の内側曲率半
径を相手メンバーの内側曲率半径よりもやや大きくなる
ように設け、 相手メンバーに圧入したときに外筒の外側曲率半径を相
手メンバーの内側曲率半径にたわませて変化させ、かつ
内、外筒間のゴムを圧縮し、上記外筒の拡開復元しよう
とする弾性力と上記スペーサ金具により高めた内、外筒
間ゴムの圧縮反力とを活用して相手メンバーからの抜け
出しを防止し、他方、前記内筒のテーパによって挿入側
の内、外筒間ゴムの断面積を増やし、その圧縮反力を下
げることにより上記圧入を円滑に行わしめることを特徴
とするクッションゴムの抜け出し防止方法。1. An inner cylinder and an outer cylinder are vulcanized and bonded by interposing a rubber in a space between an inner cylinder and an outer cylinder which is divided into two vertically, while the two divided outer cylinders are opposed to each other. In a cushion rubber that is used by press-fitting the divided outer cylinder into a mating member by providing a required gap between the surfaces, a pair of rubbers between the inner and outer cylinders that are substantially parallel to the divided surface of the outer cylinder are used. The flat spacers are embedded so as to face each other with the inner cylinder sandwiched between them, and a taper is formed on the outer surface of the inner cylinder facing the spacer metal so that the press-fitting insertion side becomes thinner. It is provided so that it is slightly larger than the inner radius of curvature of the mating member, and when press-fitted into the mating member, the outer radius of curvature of the outer cylinder is changed by bending it to the inner radius of curvature of the mating member, and between the inner and outer cylinders. Try to compress the rubber to expand and restore the outer cylinder. The elastic force and the compression reaction force of the rubber between the inner and outer cylinders, which is increased by the spacer fittings, is used to prevent the rubber from slipping out from the mating member.On the other hand, the taper of the inner cylinder prevents the space between the inner and outer cylinders on the insertion side. A method for preventing the cushion rubber from slipping out, characterized in that the press-fitting is smoothly carried out by increasing the cross-sectional area of the rubber and decreasing the compression reaction force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2103732A JPH086774B2 (en) | 1990-04-19 | 1990-04-19 | How to prevent the cushion rubber from slipping out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2103732A JPH086774B2 (en) | 1990-04-19 | 1990-04-19 | How to prevent the cushion rubber from slipping out |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH044331A JPH044331A (en) | 1992-01-08 |
| JPH086774B2 true JPH086774B2 (en) | 1996-01-29 |
Family
ID=14361814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2103732A Expired - Fee Related JPH086774B2 (en) | 1990-04-19 | 1990-04-19 | How to prevent the cushion rubber from slipping out |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH086774B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122330A (en) * | 2016-07-11 | 2016-11-16 | 株洲时代新材料科技股份有限公司 | Regulation one is method of rubber spring rigidity and radial precompressed amount and products thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3980668B2 (en) * | 1995-07-13 | 2007-09-26 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | MOUNTING DEVICE AND MANUFACTURING METHOD THEREOF |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424234U (en) * | 1977-07-21 | 1979-02-17 | ||
| JPS607432U (en) * | 1983-06-28 | 1985-01-19 | 豊田合成株式会社 | Vehicle vibration isolator |
-
1990
- 1990-04-19 JP JP2103732A patent/JPH086774B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122330A (en) * | 2016-07-11 | 2016-11-16 | 株洲时代新材料科技股份有限公司 | Regulation one is method of rubber spring rigidity and radial precompressed amount and products thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH044331A (en) | 1992-01-08 |
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