JPS5847309Y2 - bush device - Google Patents

Description

【考案の詳細な説明】 本考案は第４図及び第５図に示すようなイコライザ＝Ａ
の腕Ｂ−Ｂ間に挾みつけ、軸部材１の中空部を挿通する
ボルトナツト８によって腕Ｂ −Ｂ間に締付固定するブ
ツシュ装置に関する。[Detailed explanation of the invention] The invention is based on an equalizer = A as shown in Figs. 4 and 5.
This bushing device is clamped between the arms B and B of the shaft member 1 and is tightened and fixed between the arms B and B by means of a bolt nut 8 inserted through a hollow portion of the shaft member 1.

従来この種装置は、第１図に示すように、軸部材ａとこ
れに被嵌した衝撃吸収型の筒体すとの間に形成される環
状空間に弾性軸受部材Ｃ並びにバッキングｄを圧入し、
更にその外側にリテーナＣを挿着した後止輪ｆを挿着し
てこれを固定しているが、その止輪ｆはその抜は止め荷
重に自ら限界があり、しかもその装着に特別の治具を必
要とし、更に手作某社組付を行うを要臥組付けに手数が
か＼る等の不都合がある。Conventionally, this type of device press-fits an elastic bearing member C and a backing d into an annular space formed between a shaft member a and a shock-absorbing cylindrical body fitted onto the shaft member a, as shown in FIG. ,
Furthermore, after inserting the retainer C on the outside, a retaining ring f is inserted and fixed, but the retaining ring f has its own limit in terms of load to prevent its removal, and moreover, special treatment is required for its attachment. There are inconveniences such as the need for tools and the need for hand-made assembly by a certain company, which takes time and effort.

本考案はか＼る不都合のない装置を得ることをその目的
とするもので、軸部材１と、これに嵌合した衝撃吸収型
の筒体２との間に形成される環状空間に、弾性軸受部材
３と、その両外側のバッキング４．４とを挿着し、これ
をその軸部材１に訃いてイコライザーＡの腕Ｂ間に挾み
つけ、ボルトナツト８によって締付固定する式のものに
於いて、該軸部材１の端部に該弾性軸受部材３とバッキ
ング４の挿着部１ｂより細径の細径部１ａを形成し、該
部１ａに前記バッキング４の外側面５ａを支承する支承
面５ａと、該軸部材１の外側面に嵌挿する前記細径部と
略同−長さを有する圧着面５ｂを備えた断面り字型の固
定リング５を挿着し、且つ該固定リング５の外面と、筒
体２との間に形成される空間にダストカバー７を、その
ｌ端な固定リング５に他端を筒体２内側端に支持させて
取付けて成る。The purpose of the present invention is to obtain a device free of such inconveniences, and the annular space formed between the shaft member 1 and the impact-absorbing cylinder 2 fitted therein is provided with an elastic material. In this type, the bearing member 3 and the backings 4.4 on both outer sides thereof are inserted, and this is attached to the shaft member 1, sandwiched between the arms B of the equalizer A, and tightened and fixed with bolts and nuts 8. A narrow diameter part 1a is formed at the end of the shaft member 1, which is smaller in diameter than the insertion part 1b of the elastic bearing member 3 and the backing 4, and a support for supporting the outer surface 5a of the backing 4 is formed in the part 1a. A fixing ring 5 having an L-shaped cross section is inserted and has a crimp surface 5b having approximately the same length as the narrow diameter portion that is fitted into the outer surface of the shaft member 1, and the fixing ring A dust cover 7 is attached to the space formed between the outer surface of the dust cover 5 and the cylindrical body 2, with the other end supported by the fixing ring 5 at the l end of the dust cover 7 and the inner end of the cylindrical body 2.

図示するものは、筒体２ａの内面中央に内方に突出する
突部２ｄを形成して環状空間を左右の２部分に分割し、
各空間にそれぞれ合成樹脂製の弾性軸受部材３とその両
外側にコツトンバッキング等のバッキング４を挿着させ
ると共に該軸部材１の両端部に細径部１ａ＝１ａを構成
し、これにそれぞれ固定リング５を挿着固定させるよう
にした。In the illustrated example, a protrusion 2d that protrudes inward is formed at the center of the inner surface of the cylindrical body 2a to divide the annular space into two parts, left and right.
An elastic bearing member 3 made of synthetic resin is inserted into each space, and a backing 4 such as a cotton backing is inserted on both sides of the elastic bearing member 3, and a narrow diameter portion 1a is formed at both ends of the shaft member 1. The fixing ring 5 is inserted and fixed.

しかし、一方の固定リング５は第３図に示すごとく軸部
材１に設けた鍔６と置かえることも出来る。However, one of the fixing rings 5 can also be placed on a collar 6 provided on the shaft member 1 as shown in FIG.

尚衝撃吸収型の筒体２は軸部材１と同芯の内筒２ａと外
筒２ｂとの間にゴム等の環状弾性体２ｃを介在させて衝
撃吸収型に構成した。The shock-absorbing cylinder 2 is constructed by interposing an annular elastic body 2c such as rubber between an inner cylinder 2a and an outer cylinder 2b coaxial with the shaft member 1.

又支承面５ａとこれが当接する軸部材１の端部との間に
は必要に応じＯリング又は角バッキング９を介在させて
も良い。Further, an O-ring or a square backing 9 may be interposed between the bearing surface 5a and the end of the shaft member 1 with which it comes into contact, if necessary.

本装置は、軸部材１の端部に細径部１ａを形成し、該部
１ａに、バッキング４の外側面を支承する支承面５ａと
、該軸部材１の外側面に嵌挿する前記細径部１ａと略同
−長さを有する圧着面５ｂを備えた断面り字型の固定リ
ング５を挿着したので、該固定リング５を該細径部１ａ
に挿着させたとき、該固定リング５は挿着部１ｂと細径
部１ａとの境界部に当りその外端は、軸部材１の端面と
同一平面となり、次いで第４図に示すごとくイコライザ
ーＡの腕Ｂ−Ｂ間に挾み付け、軸部材１の中空部を挿通
するボルトナツト８によって腕Ｂ −Ｂ間に締付固定す
るとき、該固定リング５が腕Ｂ−Ｂの内端面に圧着され
て、該固定リング５を介して軸部材１と腕Ｂとか１体に
結着される。This device includes a narrow diameter portion 1a formed at the end of a shaft member 1, a support surface 5a supporting the outer surface of the backing 4, and a narrow diameter portion 1a that is fitted into the outer surface of the shaft member 1. Since the fixing ring 5 having a rectangular cross section and having a crimp surface 5b having approximately the same length as the diameter portion 1a is inserted, the fixing ring 5 is attached to the narrow diameter portion 1a.
When inserted into the shaft member 1, the fixing ring 5 hits the boundary between the insertion portion 1b and the narrow diameter portion 1a, and its outer end becomes flush with the end surface of the shaft member 1. Then, as shown in FIG. When the arms B and B of A are clamped together and the bolts and nuts 8 inserted through the hollow part of the shaft member 1 are tightened and fixed between the arms B and B, the fixing ring 5 is crimped to the inner end surface of the arms B and B. Then, the shaft member 1 and the arm B are connected to one body via the fixing ring 5.

このように本考案によるときは、軸部材１の端部細径部
１ａに、前記バッキング４の外側面を支承する支承面５
ａと軸部材１の外側面に挿着する前記細径部と略同−長
さを有する圧着面５ｂを備えた断面り字型の固定リング
５を挿着させたので、該固定リング５の端面を軸部材１
の端面と同一平面とさせることが出来、これをイコライ
ザーＡの１Ｂ−Ｂ間に挾みつけ、ボルトナツト８によっ
て締付固定するとき、該固定リング５の外端が腕Ｂ−Ｂ
間を圧着挾持されて該固定リング５の軸方向の移動のな
いように不動に固定出来て、該固定リング５による軸部
材１と筒体２との間に形成される環状空間に挿着した弾
性軸受部材３とその円外側のバッキング４，４の固定を
確実にし、しかも上記構成とすることで、固定リング５
の外面と、筒体２の内面との間に比較的大きな空間を形
成出来て、固定リング５と筒体２とに支持させて設ける
ダクトカバー７の取付けを容易にし、且つ固定リング５
が細径部１ａと挿着部１ｂの境界部に圧接密着すること
ｘ１該ダクトカバー７とによって該挿着部１ｂへの水、
はこり等の浸入を完全に防げ、該挿着部１ｂに水、はこ
りが浸入して軸受部材３が摩損するのを防げ、しかも該
固定リング５は、軸部材１の細径部１ａに圧入するのみ
で簡単に取付は得られ、その組付けを自動化出来る等の
効果がある。In this way, according to the present invention, a support surface 5 for supporting the outer surface of the backing 4 is provided on the narrow end portion 1a of the shaft member 1.
Since the fixing ring 5 having a rectangular cross section and having a crimp surface 5b having approximately the same length as the narrow diameter portion inserted into the outer surface of the shaft member 1 is inserted into the outer surface of the shaft member 1, the fixing ring 5 is Attach the end face to shaft member 1
When it is sandwiched between 1B-B of equalizer A and tightened and fixed with bolts and nuts 8, the outer end of the fixing ring 5 is flush with the end surface of arm BB.
The fixing ring 5 can be fixed immovably so as not to move in the axial direction by being crimped between the fixing ring 5 and inserted into the annular space formed between the shaft member 1 and the cylindrical body 2 by the fixing ring 5. By ensuring the fixation of the elastic bearing member 3 and the backings 4, 4 on the outside of the circle, and by having the above structure, the fixing ring 5
A relatively large space can be formed between the outer surface of the cylindrical body 2 and the inner surface of the cylindrical body 2, making it easy to attach the duct cover 7 supported by the fixing ring 5 and the cylindrical body 2.
is pressed into close contact with the boundary between the narrow diameter part 1a and the insertion part 1b.
It is possible to completely prevent the intrusion of chips, etc., and prevent the bearing member 3 from being worn out due to water and chips entering the insertion portion 1b. It can be easily installed by simply press-fitting, and has the advantage of being able to automate the assembly.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来例の裁断側面図、第２図は本考案実施の１
例の截断側面誂第３図はその変形例の裁断側面図、第４
図は使用状態を示す正面図、第５図はその■−■線截線
面断面図る。 １・・・・・・軸部材、１ａ・・・・・・細径部、２・
・・・・・筒体、３・・・・・・弾性軸受部材、４・・
・・・・バッキング、５・・・・・・固定リング、５ａ
・・・・・・支承面、５ｂ・・・・・・圧着面、７・・
・・・・ダクトカバー。Fig. 1 is a cut side view of the conventional example, Fig. 2 is an example of the implementation of the present invention.
The cut side view of the example, Fig. 3 is the cut side view of the modified example, and Fig. 4 shows the cut side view of the modified example.
The figure is a front view showing the state of use, and FIG. 5 is a cross-sectional view taken along the line ■-■. 1...Shaft member, 1a...Small diameter portion, 2.
...Cylinder, 3...Elastic bearing member, 4...
...Backing, 5...Fixing ring, 5a
...Bearing surface, 5b...Crimping surface, 7...
...Duct cover.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 軸部材１と、これに嵌合した衝撃吸収型の筒体２との間
に形成される環状空間ト、弾性軸受部材３と、その両外
側のバッキング４．４とを挿着し、これをその軸部材１
においてイコライザーＡの腕Ｂ間に挾みつけ、ボルトナ
ツト８によって締付固定する式のものに於いて、該軸部
材１の端部に該弾性軸受部材３とバッキング４の挿着部
１ｂより細径の細径部１ａを形成し、該部１ａに前記バ
ッキング４の外側面５ａを支承する支承面５ａと、該軸
部材１の外側面に嵌挿する前記細径部と略同−長さを有
する圧着面５ｂを備えた断面り字型の固定リング５を挿
着し、且つ該固定リング５の外面と、筒体２との間に形
成される空間にダストカバー７を、そのｌ端を固定リン
グ５に他端を筒体２内側端に支持させて取付けて成るブ
ツシュ装置。The elastic bearing member 3 and the backings 4.4 on both outer sides thereof are inserted into the annular space formed between the shaft member 1 and the shock-absorbing cylinder 2 fitted thereto. The shaft member 1
In the type of equalizer which is clamped between the arms B of the equalizer A and tightened and fixed with bolts and nuts 8, the end of the shaft member 1 has a diameter smaller than the insertion part 1b of the elastic bearing member 3 and the backing 4. A narrow diameter portion 1a is formed, and the portion 1a has a support surface 5a that supports the outer surface 5a of the backing 4, and has approximately the same length as the narrow diameter portion that is fitted onto the outer surface of the shaft member 1. A fixing ring 5 having a crimp-shaped cross section and a crimp surface 5b is inserted, and a dust cover 7 is fixed at its L end in the space formed between the outer surface of the fixing ring 5 and the cylindrical body 2. A bushing device which is attached to a ring 5 with its other end supported on the inner end of a cylinder 2.