JPH0361845B2 - - Google Patents
Info
- Publication number
- JPH0361845B2 JPH0361845B2 JP13970085A JP13970085A JPH0361845B2 JP H0361845 B2 JPH0361845 B2 JP H0361845B2 JP 13970085 A JP13970085 A JP 13970085A JP 13970085 A JP13970085 A JP 13970085A JP H0361845 B2 JPH0361845 B2 JP H0361845B2
- Authority
- JP
- Japan
- Prior art keywords
- disc spring
- ball joint
- lower bearing
- wear
- cap
- 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
Links
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Pivots And Pivotal Connections (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
自動車のフロントサスペンシヨン等において使
用される摩耗表示装置付きボールジヨイントに関
する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a ball joint with a wear indicator used in front suspensions of automobiles, etc.
従来の技術
この種のボールジヨイントとしては特願昭59−
150087号がある。Conventional technology This type of ball joint was first patented in 1983.
There is issue 150087.
発明が解決しようとする問題点
第６図に示す如く、従来の摩耗表示ボールジヨ
イント１ｂにはボールジヨイントが摩耗限界の設
定値まで摩耗すると、ロアーベアリング７ｂと閉
止板１６ｂの間に圧着した弾性体２０の反発力に
よりロアーベアリング７ｂに一体的に形成したガ
イド突起２１がソケツト５ｂ内に引き込まれ、そ
のことにより摩耗表示キヤツプ１２ｂがスプリン
グ１４ｂの反発力によつて突出し、ボールジヨイ
ントの摩耗限界を表示するものがある。しかし、
この方法だとロアーベアリング７ｂをバツクアツ
プする手段としての弾性体２０と摩耗表示キヤツ
プ１２ｂを突出させる契機手段構成要素としての
ガイド突起２１が各々必要であり、またボールジ
ヨイントの構造も複雑で組立てが容易ではないと
いう問題がある。Problems to be Solved by the Invention As shown in Fig. 6, in the conventional wear indicator ball joint 1b, when the ball joint wears down to the set wear limit, there is a pressure bond between the lower bearing 7b and the closing plate 16b. The guide protrusion 21 formed integrally with the lower bearing 7b is pulled into the socket 5b by the repulsive force of the elastic body 20, and the wear indicator cap 12b is thereby protruded by the repulsive force of the spring 14b, which reduces the wear of the ball joint. There is something that shows the limit. but,
This method requires an elastic body 20 as a means for backing up the lower bearing 7b and a guide protrusion 21 as a triggering means component for protruding the wear indicator cap 12b, and the structure of the ball joint is also complicated and assembly is difficult. The problem is that it is not easy.
問題点を解決するための手段
ロアーベアリングと閉止板の間に、契機手段と
ロアーベアリングバツクアツプ手段とを兼ねた略
截頭円錐形の皿ばねを圧縮装着し、ボールジヨイ
ントの摩耗が所定量進行するまで、前記皿ばねの
小径側端部が摩耗表示キヤツプに係合してその突
出を阻止するようにする。Measures to solve the problem: A substantially truncated conical disc spring, which also serves as a trigger means and a lower bearing back-up means, is compressed and installed between the lower bearing and the closing plate, and wear of the ball joint progresses by a predetermined amount. Until then, the small diameter end of the disc spring engages with the wear indicator cap to prevent its protrusion.
作 用
皿ばね圧縮装着状態では皿ばね内周の内径が小
と成つて摩耗表示キヤツプの突出を阻止し、皿ば
ね圧縮緩和時には内径が大と成つて摩耗表示キヤ
ツプの突出を許す。Function When the disc spring is compressed and installed, the inner diameter of the disc spring becomes small to prevent the wear indicator cap from protruding, and when the disc spring is relaxed from compression, the inner diameter becomes large and allows the wear indicator cap to protrude.
実施例
以下本発明の実施例の構成を図面に基づいて説
明する。第１図はフロントサスペンシヨンに用い
られるテンシヨンタイプボールジヨイント１の摩
耗前状態を表わしている。Embodiment The configuration of an embodiment of the present invention will be described below based on the drawings. FIG. 1 shows the state of a tension-type ball joint 1 used in a front suspension before wear.
このボールジヨイント１は、ボールスタツド
２、ソケツト５、アツパーベアリング６、合成樹
脂製のロアーベアリング７、ロアーベアリングを
バツクアツプする手段と契機手段とを兼ねる皿ば
ね９、閉止板１６、摩耗表示キヤツプ１２、およ
びスプリング１４を具備している。 This ball joint 1 includes a ball stud 2, a socket 5, an upper bearing 6, a lower bearing 7 made of synthetic resin, a disc spring 9 that serves as both a means for backing up the lower bearing and a trigger means, a closing plate 16, and a wear indicator cap. 12 and a spring 14.
ソケツト５は略円筒状で両端に開口を有し、そ
の一方の開口は閉止板１６で閉鎖され、他方の開
口１９はボールスタツドの柄部３を揺動自在に突
出させている。ボールスタツド２は柄部３の一端
に球状の頭部４を有する。ボールスタツドの頭部
４は、柄部側の上半分がアツパーベアリング６に
支持され、反柄部側の下半部がロアーベアリング
７に支持された状態でソケツト５内に配置され、
かつ閉止板１６とロアーベアリグ７に支持された
状態でソケツト５内に配置され、かつ閉止板１６
とロアーベアリング７との間に、小径側端部１０
を該ロアーベアリング７の底面８に対向させて圧
縮状態に装着した皿ばね９によりソケツト開口１
９に向けて常に押圧されている。 The socket 5 has a substantially cylindrical shape and has openings at both ends, one of which is closed by a closing plate 16, and the other opening 19 allows the handle 3 of the ball stud to protrude swingably. The ball stud 2 has a spherical head 4 at one end of the handle 3. The head 4 of the ball stud is disposed in the socket 5 with the upper half on the handle side supported by an upper bearing 6 and the lower half on the side opposite to the handle supported by a lower bearing 7.
and is disposed within the socket 5 in a state supported by the closing plate 16 and the lower bearing 7, and the closing plate 16
and the lower bearing 7, the small diameter side end 10
The socket opening 1 is opened by a disc spring 9 mounted in a compressed state so as to face the bottom surface 8 of the lower bearing 7.
It is constantly being pushed towards 9.
バツクアツプ手段と契機手段とを兼ねる皿ばね
９は第２図に示す如く、内周から外周に向かう複
数条の放射状切り欠きを有し、かつ隣接する切り
欠き間に内径側端部を湾曲させた舌片部１１が形
成されている。該皿ばね９は圧縮されると舌片部
１１が水平方向に変形され、適当な反発力を発生
する。 As shown in FIG. 2, the disc spring 9, which serves both as a backup means and a trigger means, has a plurality of radial notches extending from the inner circumference to the outer circumference, and has an inner end curved between adjacent notches. A tongue piece portion 11 is formed. When the disc spring 9 is compressed, the tongue portion 11 is deformed in the horizontal direction to generate an appropriate repulsive force.
なお、この実施例においては、内周から外周に
向かう複数条の放射状切り欠きを設けた皿ばね９
を使用しているが、内周から外周に向けて湾曲さ
せた切り欠き、または内周から外周に向けて円弧
状の切り欠きを設けた皿ばねを使用してもよい。 In addition, in this embodiment, the disc spring 9 is provided with a plurality of radial notches extending from the inner circumference to the outer circumference.
However, a disc spring with a notch curved from the inner circumference toward the outer circumference or an arc-shaped notch extending from the inner circumference toward the outer circumference may also be used.
１２は摩耗表示装置としての摩耗表示キヤツプ
で、皿ばね９の内周に位置している。この摩耗表
示キヤツプ１２は底付き円筒状で、上部の開口端
側が開口端に向けて徐々に拡径して係合外周部１
３を形成している。 Reference numeral 12 denotes a wear display cap as a wear display device, which is located on the inner periphery of the disc spring 9. This wear indicator cap 12 has a cylindrical shape with a bottom, and the diameter of the upper opening end gradually increases toward the opening end, and the engaging outer peripheral portion 1
3 is formed.
該摩耗表示キヤツプ１２は開口端が前記ロアー
ベアリング７の底面８中央に当接され、他端側が
閉止板１６に貫通形成した通孔１８内を貫通し、
摩耗表示キヤツプ１２の底部がボールジヨイント
１外部にわずかに突出している。 The wear indicator cap 12 has an open end in contact with the center of the bottom surface 8 of the lower bearing 7, and the other end passes through a through hole 18 formed through the closing plate 16.
The bottom of the wear indicator cap 12 slightly protrudes outside the ball joint 1.
前記摩耗表示キヤツプ１２の内側凹穴内にはス
プリング１４が圧縮状態に収納されキヤツプ１２
とロアーベアリング７とが互いに離隔する方向の
予圧が付与されている。 A spring 14 is stored in a compressed state in the inner recessed hole of the wear indicator cap 12.
A preload is applied in a direction to separate the lower bearing 7 and the lower bearing 7 from each other.
しかし皿ばね９の小径側端部１０の内径は圧縮
装着時には摩耗表示キヤツプ１２の係合外周部１
３の外径よりも小と成りキヤツプ１２の係合外周
部１３を内径方向へ締めつけるので、キヤツプ１
２がスプリング１４の反発力によつてボールスタ
ツド頭部４から離隔する方向に突出するのを阻止
している。ボールジヨイント１が摩耗限界の設定
値まで摩耗すると、皿ばね９の小径側端部１０は
自由状態に戻るためその内径がキヤツプ１２の係
合外周部１３の外径よりも大と成りキヤツプ１２
の該係合外周部１３を締めつけなくなり、キヤツ
プ１２の突出を許す。 However, the inner diameter of the small-diameter end 10 of the disc spring 9 is the engagement outer circumference 1 of the wear indicator cap 12 during compression mounting.
Since the outer diameter of the cap 1 is smaller than the outer diameter of the cap 1 and the engaging outer circumferential portion 13 of the cap 12 is tightened in the inner diameter direction, the outer diameter of the cap 1
2 is prevented from protruding away from the ball stud head 4 by the repulsive force of the spring 14. When the ball joint 1 wears down to the set wear limit, the small-diameter end 10 of the disc spring 9 returns to its free state, so its inner diameter becomes larger than the outer diameter of the engaging outer circumference 13 of the cap 12.
The engaging outer peripheral portion 13 is no longer tightened, allowing the cap 12 to protrude.
この実施例においては、皿ばね９の小径側端部
１０と係合して契機手段を構成するキヤツプ１２
の係合外周部１３が外径方向に拡径された外周面
であるが、このキヤツプ１２の大径部としては外
周に環状に突設された突起でもよい。 In this embodiment, a cap 12 engages with the small diameter end 10 of the disc spring 9 and constitutes a trigger means.
Although the engaging outer circumferential portion 13 is an outer circumferential surface whose diameter is expanded in the outer radial direction, the large diameter portion of the cap 12 may be a protrusion that projects annularly from the outer circumference.
つぎに上記摩耗表示ボールジヨイント１の作動
について説明する。 Next, the operation of the wear indicating ball joint 1 will be explained.
ボールジヨイント１使用中にロアーベアリング
７のバツクアツプ手段として働く皿ばね９は、ボ
ールジヨイント１の摩耗が進行すると、第４図の
実線図示の状態から２点鎖線で示す自由状態に戻
ろうとする反発力により、ロアーベアリング７を
ソケツト開口１９に接近する方向へ押し上げる。
やがてボールジヨイント摩耗が予め設定した限界
に達すると、第３図に描かれているように皿ばね
９の小径側端部１０が摩耗表示キヤツプ１２の係
合外周部１３からはずれる。即ち皿ばね９が今度
は契機手段として働き、キヤツプ１２はスプリン
グ１４の反発力によりボールスタツド頭部４から
離隔する方向に突出する。突出したキヤツプ１２
は、閉止板１６の通孔１８内周の内径より外径が
大である係合外周部１３によつて該通孔１８で係
止される。このことによりボールジヨイントの摩
耗限界を目視確認できる。 The disc spring 9, which acts as a backup means for the lower bearing 7 while the ball joint 1 is in use, tries to return from the state shown by the solid line in FIG. 4 to the free state shown by the two-dot chain line as the ball joint 1 wears out. The repulsive force pushes the lower bearing 7 up toward the socket opening 19.
When the wear of the ball joint eventually reaches a preset limit, the small diameter end 10 of the disc spring 9 is disengaged from the engagement outer circumference 13 of the wear indicator cap 12, as shown in FIG. That is, the disc spring 9 now acts as a triggering means, and the cap 12 projects away from the ball stud head 4 due to the repulsive force of the spring 14. Protruding cap 12
is locked in the through hole 18 by the engaging outer circumferential portion 13 having an outer diameter larger than the inner diameter of the inner circumference of the through hole 18 of the closing plate 16 . This allows visual confirmation of the wear limit of the ball joint.
なお、上記実施例においては、係合外周部１３
を契機手段と機能させると共にこのように閉止板
１６からの抜け止め手段としても機能させたが、
抜け止め手段としては前記係合外周部１３とは別
にキヤツプ１２の底部側に通孔１８内径より大径
の環状突起（図示せず）または外径差による肩部
（図示せず）等を設けてもよい。 In addition, in the above embodiment, the engagement outer peripheral portion 13
In addition to functioning as a trigger means, it also functioned as a means for preventing slippage from the closing plate 16,
As a means for preventing the cap from falling off, an annular protrusion (not shown) having a diameter larger than the inner diameter of the through hole 18 or a shoulder portion (not shown) due to the difference in outer diameter is provided on the bottom side of the cap 12 in addition to the engaging outer circumferential portion 13. It's okay.
上記第１番目の実施例ではロアーベアリングバ
ツクアツプ手段と契機手段を兼ねた皿ばね９の小
径柄端部１０をロアーベアリング７の底面８に対
向させて装着したが、皿ばねの装着向きは上記実
施例に限定されるものではなく、例けば第２番目
の実施例として第５図に描かれているように皿ば
ねを逆向きに装着しても良い。 In the first embodiment described above, the small-diameter handle end 10 of the disc spring 9, which also serves as lower bearing backup means and triggering means, is mounted so as to face the bottom surface 8 of the lower bearing 7, but the mounting direction of the disc spring is as described above. The present invention is not limited to this embodiment; for example, the disc spring may be mounted in the opposite direction as shown in FIG. 5 as a second embodiment.
この第２番目の実施例の皿ばねの装着向きを除
く部分の構成は第１番目の実施例のボールジヨイ
ント１と略同一であるため、第１番目の実施例と
同一部には同一番号の右にアルフアベツトのａを
付与してあるので、それらの部分の説明は省略す
る。 The configuration of the parts of this second embodiment except for the mounting direction of the disc spring is almost the same as the ball joint 1 of the first embodiment, so the same parts as the first embodiment have the same number. Since the alphanumeric character a is given to the right of , the explanation of those parts will be omitted.
第２番目の実施例のおいて、第１番目の実施例
と相違する最大の特徴は、皿ばね９ａの装着向き
が第１番目の実施例とは逆であり、小径側端部
が、閉止板９ａに対向している点である。 The biggest difference between the second embodiment and the first embodiment is that the mounting direction of the disc spring 9a is opposite to that of the first embodiment, and the small diameter end is closed. This is the point facing the plate 9a.
なお、第１番目と第２番目の実施例では皿ばね
をそれぞれ一枚ずつ使用しているが、２枚の皿ば
ね（図示せず）の舌片部１１を互いに当接させる
と共に該当接された舌片部１１と前記磨耗表示キ
ヤツプ１２の係合外周部１３とによつて契機手段
を構成するように装着してもよい。 In addition, in the first and second embodiments, one plate spring is used each, but the tongue portions 11 of the two plate springs (not shown) are brought into contact with each other and the corresponding contact is made. The tongue piece 11 and the engaging outer peripheral part 13 of the wear indicator cap 12 may be installed so as to constitute a trigger means.
効 果
以上のように本発明によれは、皿ばねの使用に
よりバツクアツプ手段と突出契機手段の一体化が
可能となり、かつ構造が簡単で、組立ても容易と
なる効果がある。Effects As described above, according to the present invention, the backup means and the ejection trigger means can be integrated by using a disc spring, and the structure is simple and assembly is easy.
第１図から第４図は本発明の実施例を表わすも
ので、第１図はボールジヨイント摩耗前の状態を
表わす摩耗表示ボールジヨイントの説明断面図。
第２図は第１図の皿ばねの平面図。第３図は第１
図のボールジヨイン摩耗後の状態を表わす説明断
面図。第４図は第１図のボールジヨイント摩耗前
後の状態を表わす要部拡大説明断面図。第５図は
本発明の他の実施例を表わすもので、摩耗表示ボ
ールジヨイントの説明断面図。第６図は従来の摩
耗表示ボールジヨイントの説明断面図である。
（記号の説明）、１……ボールジヨイント。７
……ロアーベアリング。８……ロアーベアリング
の底面。９……皿ばね。１０……小径側端部。１
２……摩耗表示キヤツプ（摩耗表示装置）。１３
……係合外周部。
1 to 4 show embodiments of the present invention, and FIG. 1 is an explanatory sectional view of a wear-indicating ball joint showing a state before the ball joint wears out.
FIG. 2 is a plan view of the disc spring shown in FIG. 1. Figure 3 is the first
FIG. 2 is an explanatory cross-sectional view showing the state after ball joint wear shown in the figure. FIG. 4 is an enlarged explanatory sectional view of the main part showing the state of the ball joint in FIG. 1 before and after wear. FIG. 5 shows another embodiment of the present invention, and is an explanatory sectional view of a wear indicating ball joint. FIG. 6 is an explanatory sectional view of a conventional wear indicating ball joint. (Explanation of symbols), 1...Ball joint. 7
...Lower bearing. 8...Bottom surface of lower bearing. 9...Disc spring. 10...Small diameter side end. 1
2...Wear display cap (wear display device). 13
... Engagement outer periphery.
Claims (1)
ーベアリング７を押し上げるように圧縮装着され
た略截頭円錐形の皿ばね９と、該皿ばね９内周に
位置しかつ反ロアーベアリング７方向に付勢され
ていると共に、その付勢による突出を前記皿ばね
９小径側端部１０との係合により阻止される前記
皿ばね９小径側自由時内径より小さく該皿ばね９
小径側圧縮装着時内径より大きな径の係合外周部
１３を有する摩耗表示装置１２とを設けたことを
特徴とする摩耗表示ボールジヨイント。1 A generally truncated conical disc spring 9 is compressed and installed in the socket 5 of the ball joint 1 so as to push up the lower bearing 7, and a disc spring 9 is located on the inner circumference of the disc spring 9 and is attached in the direction opposite to the lower bearing 7. The disc spring 9 is biased, and its projection due to the bias is prevented by engagement with the small diameter end 10 of the disc spring 9.
A wear indicating ball joint characterized in that it is provided with a wear indicating device 12 having an engagement outer circumferential portion 13 having a diameter larger than the inner diameter when the small diameter side is compressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13970085A JPS622076A (en) | 1985-06-26 | 1985-06-26 | Wear indication ball joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13970085A JPS622076A (en) | 1985-06-26 | 1985-06-26 | Wear indication ball joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS622076A JPS622076A (en) | 1987-01-08 |
| JPH0361845B2 true JPH0361845B2 (en) | 1991-09-24 |
Family
ID=15251384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13970085A Granted JPS622076A (en) | 1985-06-26 | 1985-06-26 | Wear indication ball joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS622076A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100598741B1 (en) * | 2003-12-11 | 2006-07-10 | 엘지.필립스 엘시디 주식회사 | Liquid crystal display device |
| CN103498947A (en) * | 2013-10-05 | 2014-01-08 | 赵来华 | Self-adjusting leakage-free ball valve |
-
1985
- 1985-06-26 JP JP13970085A patent/JPS622076A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS622076A (en) | 1987-01-08 |
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