JPH07301226A - Synthetic resin thrust bearing - Google Patents

Synthetic resin thrust bearing

Info

Publication number
JPH07301226A
JPH07301226A JP6114417A JP11441794A JPH07301226A JP H07301226 A JPH07301226 A JP H07301226A JP 6114417 A JP6114417 A JP 6114417A JP 11441794 A JP11441794 A JP 11441794A JP H07301226 A JPH07301226 A JP H07301226A
Authority
JP
Japan
Prior art keywords
annular
synthetic resin
bearing case
bearing
outer peripheral
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
Application number
JP6114417A
Other languages
Japanese (ja)
Inventor
Atsushi Ueno
篤志 上野
Tetsuya Aida
鉄也 相田
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.)
Oiles Industry Co Ltd
Original Assignee
Oiles Industry 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 Oiles Industry Co Ltd filed Critical Oiles Industry Co Ltd
Priority to JP6114417A priority Critical patent/JPH07301226A/en
Publication of JPH07301226A publication Critical patent/JPH07301226A/en
Pending legal-status Critical Current

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  • Sliding-Contact Bearings (AREA)

Abstract

PURPOSE:To provide such a synthetic resin thrust bearing, arranged between two relatively rotated objects, as being capable of permitting the smooth relative rotation of two objects without causing the variation of friction. CONSTITUTION:A synthetic resin thrust bearing consists of a synthetic resin upper bearing case 300, a synthetic resin lower bearing case 200 and a bearing body 400 formed of synthetic resin showing good friction property in combination with synthetic resin for the lower bearing case. The bearing body has the upper and lower faces put in slide contact with annularly recessed grooves 304, 205 in the upper and lower bearing cases, respectively. The upper bearing case has the labyrinth seal portions formed on the elastically mounting and folding portions with the lower bearing case, respectively, and the annularly tapered portion 309 combined with the lower bearing case to encircle the outer periphery of the lower bearing case.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は相対回転する二つの物体
間に配されて当該回転を円滑に許容する合成樹脂スラス
ト軸受、具体的には四輪自動車のストラット型サスペン
ション(マクファ−ソン式)に組込まれて好適な合成樹
脂スラスト軸受に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin thrust bearing, which is disposed between two objects that rotate relative to each other and allows the rotation smoothly, more specifically, a strut type suspension (McFerson type) of a four-wheeled vehicle. The present invention relates to a synthetic resin thrust bearing suitable for being incorporated into

【0002】[0002]

【従来の技術】一般にストラット型サスペンションは、
主として四輪自動車の前輪に用いられ、主軸と一体とな
った外筒の中に油圧式ショックアブソ−バを内蔵したス
トラットアッセンブリにコイルバネを組合せたサスペン
ションである。上記サスペンションには、ステアリング
操作によりストラットアッセンブリがコイルバネととも
に回るさい、該アッセンブリのピストンロッドが回るも
のと、該ピストンロッドが回らない型式のものとがある
が、いずれの型式においてもストラットアッセンブリの
回転を円滑に許容するべく車体の取付部材とコイルバネ
の上部バネ座シ−トとの間に軸受が必要とされる。そし
て、従来よりこの個所の軸受にはボ−ルあるいはニ−ド
ルを使用した転がり軸受あるいは合成樹脂製すべり軸受
が使用されている。
2. Description of the Related Art Generally, strut suspensions are
This suspension is mainly used for the front wheels of four-wheeled vehicles, and is a suspension that combines a coil spring with a strut assembly that has a hydraulic shock absorber built into an outer cylinder that is integrated with the main shaft. In the suspension, when the strut assembly rotates together with the coil spring by steering operation, there are a type in which the piston rod of the assembly rotates and a type in which the piston rod does not rotate. A bearing is required between the mounting member of the vehicle body and the upper spring seat of the coil spring to allow for a smooth allowance. Conventionally, a rolling bearing using a ball or a needle or a sliding bearing made of synthetic resin has been used as a bearing at this location.

【0003】しかるに、従来使用されている合成樹脂製
すべり軸受においては摺動面への塵埃等の侵入を防止す
る目的で、該すべり軸受の外周面にゴム弾性体からなる
ダストシ−ルが装着されており、このダストシ−ルは回
転する摺動面に密に摺接させて配されるため、ステアリ
ング操作時にはその摺動摩擦力が高く操舵力を増大させ
るという欠点がある。上記従来技術における合成樹脂製
すべり軸受の欠点を解決するべく、本出願人は先に実願
昭61−196804号(実公平2−6263号:以下
「先行技術1」という)、実願平1−16171号(実
開平2−107823号:以下「先行技術2」という)
において、ゴム弾性体からなるダストシ−ルを使用する
ことなく摺動面への塵埃等の侵入を防止し、ステアリン
グ操作時の操舵力の増大を防止できる合成樹脂スラスト
軸受を提案した。図6は先行技術1の合成樹脂スラスト
軸受を示す縦断面図である。この先行技術1の合成樹脂
スラスト軸受1は合成樹脂製上部軸受ケ−ス3、合成樹
脂製下部軸受ケ−ス2と該上、下部軸受ケ−ス内に配さ
れる合成樹脂製軸受体4から成り、該上部軸受ケ−スの
下面に形成された内環状垂下部33および外環状垂下部
34の端部をそれぞれ該下部軸受ケ−スの第一環状突起
部23および第二環状突起部25の端部に係合させると
ともに該上部軸受ケ−スの係合フック部37を該下部軸
受ケ−スの係合部28に弾性装着させ、該弾性装着部お
よびそれぞれの係合部にラビリンス作用による密封部を
形成して組合されているものである。
However, in a conventional synthetic resin slide bearing, a dust seal made of a rubber elastic body is attached to the outer peripheral surface of the slide bearing in order to prevent dust and the like from entering the sliding surface. However, since this dust seal is arranged in close contact with the rotating sliding surface, there is a drawback that the sliding frictional force is high during steering operation and the steering force is increased. In order to solve the above-mentioned drawbacks of the synthetic resin slide bearings in the prior art, the present applicant has previously filed Japanese Utility Model Application No. 61-196804 (Japanese Utility Model Publication No. 2-6263, hereinafter referred to as “Prior Art 1”) and Japanese Patent Application No. -16171 (Actual Kaihei No. 2-107823: hereinafter referred to as "Prior Art 2")
Proposed a synthetic resin thrust bearing capable of preventing dust and the like from entering the sliding surface without using a dust seal made of a rubber elastic body and preventing an increase in steering force during steering operation. FIG. 6 is a vertical sectional view showing a synthetic resin thrust bearing of Prior Art 1. The synthetic resin thrust bearing 1 of the prior art 1 includes an upper bearing case 3 made of synthetic resin, a lower bearing case 2 made of synthetic resin, and a synthetic resin bearing body 4 arranged in the upper and lower bearing cases. And the end portions of the inner annular hanging portion 33 and the outer annular hanging portion 34 formed on the lower surface of the upper bearing case are respectively connected to the first annular protruding portion 23 and the second annular protruding portion of the lower bearing case. 25 and the engaging hook portion 37 of the upper bearing case is elastically attached to the engaging portion 28 of the lower bearing case, and the labyrinth is attached to the elastic attaching portion and each engaging portion. They are combined by forming a sealed portion by action.

【0004】また、図7は先行技術2の合成樹脂スラス
ト軸受を示す縦断面図である。この先行技術2の合成樹
脂スラスト軸受1は合成樹脂製上部軸受ケ−ス3、合成
樹脂製下部軸受ケ−ス2と該上、下部軸受ケ−ス内に配
される合成樹脂製軸受体4から成り、該上部軸受ケ−ス
の下面に形成された内環状垂下部33および環状突出部
38および外環状垂下部34の端部をそれぞれ該下部軸
受ケ−ス2の第一環状突起部23および環状突出部29
および第二環状突起部25の端部と係合させるとともに
該上部軸受ケ−ス3を該下部軸受ケ−ス2の外周面に弾
性装着させ、該弾性装着部およびそれぞれの係合部にラ
ビリンス作用による密封部を形成して組合されているも
のである。
FIG. 7 is a vertical sectional view showing a synthetic resin thrust bearing of Prior Art 2. The synthetic resin thrust bearing 1 of the prior art 2 includes an upper bearing case 3 made of synthetic resin, a lower bearing case 2 made of synthetic resin, and a synthetic resin bearing body 4 arranged in the upper and lower bearing cases. And the end portions of the inner annular hanging portion 33, the annular protruding portion 38, and the outer annular hanging portion 34 formed on the lower surface of the upper bearing case are respectively connected to the first annular protruding portion 23 of the lower bearing case 2. And annular protrusion 29
And the upper bearing case 3 is elastically attached to the outer peripheral surface of the lower bearing case 2 while engaging with the end of the second annular projection 25, and the labyrinth is attached to the elastic attachment and the respective engaging portions. They are combined by forming a sealed portion by action.

【0005】[0005]

【発明が解決しようとする課題】上述した先行技術から
成る合成樹脂スラスト軸受は、従来の合成樹脂製すべり
軸受の欠点であったステアリング操作時の操舵力の増大
を防止し、かつラビリンス作用による密封部により摺動
面への塵埃等の侵入を防止し、円滑な操舵力を長期間に
わたって維持することができるものであった。しかしな
がら、上記スラスト軸受が組込まれるストラット型サス
ペンションは車両走行中に塵埃、泥水等が直接作用する
部位で、当該部位に組込まれるスラスト軸受の使用環境
としては極めて過酷な条件である。上記先行技術から成
る合成樹脂スラスト軸受は内、外周面側にそれぞれラビ
リンス作用による密封手段が構成され、当該密封手段に
よって軸受摺動面への塵埃等の侵入を防止しているが、
上述した過酷な環境条件下での使用では塵埃、とくに泥
水の摺動面への侵入に対しては十分な密封手段とは言え
ず、往々にして泥水の侵入が起こり摺動特性に影響をも
たらすという問題が新たに提起された。本発明は過酷な
環境条件下の使用でも塵埃、泥水等の侵入を防止し、ス
テアリング操作時の円滑な操舵力を長期間にわたって維
持することができる合成樹脂スラスト軸受を得ることを
目的とするものである。
SUMMARY OF THE INVENTION The synthetic resin thrust bearing according to the prior art described above prevents an increase in steering force during steering operation, which is a drawback of conventional synthetic resin slide bearings, and seals by a labyrinth action. It was possible to prevent dust and the like from entering the sliding surface by means of the portion, and to maintain a smooth steering force for a long period of time. However, the strut-type suspension in which the thrust bearing is incorporated is a portion to which dust, muddy water and the like directly act while the vehicle is traveling, and it is a very severe condition as a usage environment of the thrust bearing incorporated in the portion. In the synthetic resin thrust bearing of the above-mentioned prior art, sealing means by a labyrinth action is formed on the inner and outer peripheral surfaces, respectively, and the sealing means prevents dust and the like from entering the bearing sliding surface.
When used under the harsh environmental conditions mentioned above, it cannot be said that it is a sufficient sealing means against the intrusion of dust, especially muddy water, into the sliding surface, and often infiltration of muddy water affects the sliding characteristics. The problem was newly raised. It is an object of the present invention to obtain a synthetic resin thrust bearing capable of preventing the intrusion of dust, muddy water, etc. even when used under harsh environmental conditions and maintaining a smooth steering force during steering operation for a long period of time. Is.

【0006】[0006]

【課題を解決するための手段】本発明によれば上記目的
は、中央部に挿通孔201を有する円板状部202と該
円板状部の上面に該挿通孔と連なる環状平面部203を
残して該挿通孔と同心状に突設された第一環状突起部2
04と該第一環状突起部と径方向外方に間隔を隔てて突
設され、該第一環状突起部の外周面と円板状部の上面と
で幅広の環状凹溝205を形成する第二環状突起部20
6と該円板状部の外周縁に突設された環状係合突出部2
08と該環状係合突出部の外周面に形成された係合部2
09とを備えた合成樹脂製下部軸受ケ−ス200と、中
央部に前記挿通孔と同径の挿通孔301を有する円板状
部302と該円板状部の下面に該挿通孔と連通する内環
状垂下部303と該内環状垂下部と径方向外方に間隔を
隔てて垂下し、該内環状垂下部の外周面と円板状部の下
面とで幅広の環状凹溝304を形成する外環状垂下部3
05と該円板状部の外周面に垂下する環状係合垂下部3
07と該環状係合垂下部の内周面に形成された係合フッ
ク部308と該円板状部の外周面上端部に該上端部から
下方に向けて該環状係合垂下部の外周面を囲繞するよう
に漸次拡径して垂設された薄肉の環状テ−パ−部309
とを備えた合成樹脂製上部軸受ケ−ス300と、中央部
に円孔401を有する円板からなる合成樹脂製軸受体4
00と、から成り、該軸受体400は下面を前記下部軸
受ケ−ス200の環状凹溝205底面に摺接させて該環
状凹溝に配されており、該上部軸受ケ−ス300は環状
凹溝304の底面を該軸受体の上面に摺接させ、内環状
垂下部303および外環状垂下部305の端部をそれぞ
れ該下部軸受ケ−スの第一環状突起部204および第二
環状突起部206の端部とその径方向に重畳させて係合
させるとともに環状係合垂下部307の係合フック部3
08を該下部軸受ケ−スの環状係合突出部外周面の係合
部209に弾性装着させ、該弾性装着部、内環状垂下部
303と第一環状突起部204および外環状垂下部30
5と第二環状突起部206のそれぞれの重畳部にラビリ
ンス作用による密封部を形成するとともに上部軸受ケ−
スの環状テ−パ−部は該下部軸受ケ−スの外周面を囲繞
して該下部軸受ケ−スに組合されていることを特徴とす
る合成樹脂スラスト軸受によって達成される。
According to the present invention, the above object is to provide a disc-shaped portion 202 having an insertion hole 201 in the center and an annular flat portion 203 connected to the insertion hole on the upper surface of the disc-shaped portion. The first annular projection 2 which is provided so as to project concentrically with the insertion hole.
04 and the first annular projection portion at a distance from each other outwardly in the radial direction to form a wide annular concave groove 205 between the outer peripheral surface of the first annular projection portion and the upper surface of the disk-shaped portion. Two annular protrusions 20
6 and an annular engaging protrusion 2 protruding from the outer peripheral edge of the disc-shaped portion
08 and the engaging portion 2 formed on the outer peripheral surface of the annular engaging protrusion.
09, a synthetic resin lower bearing case 200, a disk-shaped portion 302 having a through hole 301 having the same diameter as the through hole in the central portion, and a lower surface of the disk portion communicating with the through hole. The inner annular hanging portion 303 and the inner annular hanging portion are hung radially outward from the inner annular hanging portion with a space therebetween, and a wide annular concave groove 304 is formed by the outer peripheral surface of the inner annular hanging portion and the lower surface of the disk-shaped portion. Outer ring hanging part 3
05 and an annular engaging hanging portion 3 that hangs on the outer peripheral surface of the disk-shaped portion
07, the engaging hook portion 308 formed on the inner peripheral surface of the annular engaging hanging portion, and the outer peripheral surface of the disk-shaped portion. The outer peripheral surface of the annular engaging hanging portion extends downward from the upper end portion. A thin annular taper portion 309 which is vertically extended so as to surround the
An upper bearing case 300 made of synthetic resin, which is provided with: a synthetic resin bearing body 4 made of a disc having a circular hole 401 in the central portion.
00, and the lower surface of the bearing body 400 is slidably contacted with the bottom surface of the annular groove 205 of the lower bearing case 200, and the bearing body 400 is arranged in the annular groove. The bottom surface of the groove 304 is brought into sliding contact with the upper surface of the bearing body, and the ends of the inner annular hanging portion 303 and the outer annular hanging portion 305 are respectively provided with the first annular protruding portion 204 and the second annular protruding portion of the lower bearing case. The engaging hook portion 3 of the annular engaging hanging portion 307 is engaged with the end portion of the portion 206 so as to overlap with the end portion in the radial direction.
08 is elastically attached to the engaging portion 209 on the outer peripheral surface of the annular engaging protrusion of the lower bearing case, and the elastic attaching portion, the inner annular hanging portion 303, the first annular protruding portion 204, and the outer annular hanging portion 30.
5 and the second annular protruding portion 206 are formed with a sealing portion by a labyrinth action at the overlapping portion and the upper bearing case.
The annular taper portion of the shoe is achieved by a synthetic resin thrust bearing characterized in that the annular taper portion surrounds the outer peripheral surface of the lower bearing case and is combined with the lower bearing case.

【0007】上述した構成から成る合成樹脂スラスト軸
受において、該下部軸受ケ−スの幅広の環状凹溝には第
一環状突起部の外周面と該凹溝の底面とで環状溝210
を画定して突出する環状突起部211が形成されてお
り、該上部軸受ケ−スの幅広の環状凹溝には内環状垂下
部の外周面と該凹溝の底面とで環状溝310を画定して
垂下する環状垂下部311が形成されており、該環状垂
下部はその端部を該環状突起部の端部にその径方向に重
畳させて組合されており、該重畳部にラビリンス作用に
よる密封部が形成されてなる構成を採ることもできる。
In the synthetic resin thrust bearing having the above-mentioned structure, the wide annular concave groove of the lower bearing case has an annular groove 210 formed by the outer peripheral surface of the first annular protrusion and the bottom surface of the concave groove.
An annular projection portion 211 is formed so as to define and protrude. An annular groove 310 is defined in the wide annular concave groove of the upper bearing case by the outer peripheral surface of the inner annular hanging portion and the bottom surface of the concave groove. An annular hanging portion 311 is formed so as to hang down, and the annular hanging portion is combined with the end portion of the annular protruding portion in the radial direction so as to overlap with the end portion of the annular protruding portion. It is also possible to adopt a configuration in which the sealed portion is formed.

【0008】上述した合成樹脂スラスト軸受は該上部軸
受ケ−スを車体側取付部材に当接させ、該下部軸受ケ−
スを上部バネ座シ−トに当接させるとともに該上部軸受
ケ−スの環状テ−パ−部の端部を該上部バネ座シ−トの
上面に密に摺接させ、当該摺接部に密封部を形成してス
トラットアッセンブリのストラットの上部バネ座シ−ト
と車体側取付部材との間に組込まれて使用される。
In the above-mentioned synthetic resin thrust bearing, the upper bearing case is brought into contact with the vehicle body side mounting member, and the lower bearing case is attached.
The upper spring seat seat, and the end of the annular taper portion of the upper bearing case is brought into close sliding contact with the upper surface of the upper spring seat seat to form a sliding contact portion. A seal portion is formed in the strut assembly and is used by being assembled between the upper spring seat of the strut of the strut assembly and the vehicle body side mounting member.

【0009】上述した構成の合成樹脂スラスト軸受にお
いて、上、下部軸受ケ−スを形成する合成樹脂は、耐摩
耗性、耐衝撃性、耐クリ−プ性などの機械的特性に優れ
ていることが必要であり、また上、下部軸受ケ−ス間に
収納される合成樹脂製軸受体はとくに自己潤滑性を有す
るものが好ましく、例えばポリアセタ−ル樹脂、ポリア
ミド樹脂、ポリブチレンテレフタレ−ト樹脂などの熱可
塑性ポリエステル樹脂、ポリエチレン樹脂、ポリプロピ
レン樹脂などのポリオレフィン樹脂などが良好に使用さ
れ、この他ポリカ−ボネ−ト樹脂等も使用し得る。上、
下部軸受ケ−スには、上記軸受体と同様の合成樹脂が使
用されるが、特に該軸受体に使用される合成樹脂と摩擦
特性の良好な組合せであって、しかも比較的剛性の高い
合成樹脂材料であることが望ましい。
In the synthetic resin thrust bearing having the above-mentioned structure, the synthetic resin forming the upper and lower bearing cases has excellent mechanical properties such as wear resistance, impact resistance and creep resistance. The synthetic resin bearing body housed between the upper and lower bearing cases preferably has a self-lubricating property, such as polyacetal resin, polyamide resin, polybutylene terephthalate resin. A thermoplastic polyester resin such as the above, a polyolefin resin such as a polyethylene resin and a polypropylene resin, and the like are preferably used, and a polycarbonate resin and the like can also be used. Up,
The lower bearing case is made of the same synthetic resin as that used for the bearing body, but is a combination of the synthetic resin used for the bearing body and a good friction characteristic, and has a relatively high rigidity. A resin material is desirable.

【0010】[0010]

【作用】上述した構成から成る合成樹脂スラスト軸受は
合成樹脂製軸受体と合成樹脂製上、下部軸受ケ−ス間の
摺動面が、該上、下部軸受ケ−ス間に形成されたラビリ
ンス作用による密封部によって保護され、かつ該上部軸
受ケ−スに形成された環状テ−パ−部の端部が上部バネ
座シ−トの上面に密に摺接し、当該摺接部に密封部を形
成しているため、当該摺動面への塵埃、泥水等の侵入が
防止される。上、下部軸受ケ−スに相対回転が生じた場
合、当該回転は下部軸受ケ−スの環状凹溝底面と該環状
凹溝内に配される合成樹脂製軸受体の下面との摺接面あ
るいは該軸受体の上面と上部軸受ケ−スの環状凹溝底面
との摺接面のいずれか摩擦抵抗の低い側で許容される。
According to the synthetic resin thrust bearing having the above-mentioned structure, the sliding surface between the synthetic resin bearing body and the synthetic resin upper and lower bearing cases is formed between the upper and lower bearing cases. The end portion of the annular taper portion formed on the upper bearing case is protected by the sealing portion due to the action, and the end portion of the annular taper portion closely slides on the upper surface of the upper spring seat sheet, and the sealing portion is on the sliding contact portion. Since this is formed, invasion of dust, muddy water, etc. to the sliding surface is prevented. When relative rotation occurs in the upper and lower bearing cases, the rotation is a sliding contact surface between the bottom surface of the annular groove of the lower bearing case and the lower surface of the synthetic resin bearing body arranged in the annular groove. Alternatively, it is allowed on the side of the sliding contact between the upper surface of the bearing body and the bottom surface of the annular groove of the upper bearing case, whichever has the lower frictional resistance.

【0011】[0011]

【実施例】以下、本発明をその実施例を示す添付図面に
よって詳細に説明する。図1乃至図3に本発明の好まし
い実施例を示す。図1において合成樹脂スラスト軸受1
00は合成樹脂製下部軸受ケ−ス200と合成樹脂製上
部軸受ケ−ス300と合成樹脂製軸受体400から構成
されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings showing its embodiments. 1 to 3 show a preferred embodiment of the present invention. In FIG. 1, synthetic resin thrust bearing 1
00 is composed of a synthetic resin lower bearing case 200, a synthetic resin upper bearing case 300, and a synthetic resin bearing body 400.

【0012】合成樹脂製下部軸受ケ−ス200は、中央
部に挿通孔201を有する円板状部202と該円板状部
の上面に該挿通孔と連なる環状平面部203を残して該
挿通孔と同心状に突設された第一環状突起部204と該
第一環状突起部と径方向外方に間隔を隔てて突設され、
該第一環状突起部の外周面と円板状部の上面とで幅広の
環状凹溝205を形成する第二環状突起部206と該円
板状部の外周縁に突設され該第二環状突起部の外周面と
該円板状部の上面とで環状係合溝207を形成する環状
係合突出部208と該環状係合突出部の外周面に形成さ
れた係合部209とを備えている。該円板状部202の
下面には径方向に相対向して突起212が形成されてお
り、該突起は後述する合成樹脂スラスト軸受100をス
トラットアッセンブリAに組込み固定するさいの位置決
めの役割を果たす。該環状係合突出部208の外周面に
形成された係合部209は該環状係合突出部208の外
周上端部から外方に向けて拡がるテ−パ−面部と該テ−
パ−面部と連続し内方に向けて収束して該円板状部20
2の外周円筒面に連なるテ−パ−面部とからなる。
The lower bearing case 200 made of synthetic resin has a disc-shaped portion 202 having an insertion hole 201 in the center and an annular flat portion 203 connected to the insertion hole on the upper surface of the disc-shaped portion. A first annular protrusion 204 that is provided concentrically with the hole, and a first annular protrusion that is provided radially outward of the first annular protrusion 204 at a distance from the first annular protrusion;
A second annular protrusion 206 that forms a wide annular groove 205 between the outer peripheral surface of the first annular protrusion and the upper surface of the disc-shaped portion, and the second annular protrusion protruding from the outer peripheral edge of the disc-shaped portion. An annular engaging protrusion 208 that forms an annular engaging groove 207 between the outer peripheral surface of the protrusion and the upper surface of the disc-shaped portion, and an engaging portion 209 formed on the outer peripheral surface of the annular engaging protrusion. ing. A protrusion 212 is formed on the lower surface of the disk-shaped portion 202 so as to face each other in the radial direction, and the protrusion plays a role of positioning when the synthetic resin thrust bearing 100, which will be described later, is assembled and fixed to the strut assembly A. . An engaging portion 209 formed on the outer peripheral surface of the annular engaging protruding portion 208 is a taper surface portion that extends outward from the outer peripheral upper end portion of the annular engaging protruding portion 208, and the taper surface portion.
The disk-shaped portion 20 is continuous with the par surface portion and converges inward.
2 and a taper surface portion connected to the outer peripheral cylindrical surface.

【0013】合成樹脂製上部軸受ケ−ス300は、中央
部に前記挿通孔と同径の挿通孔301を有する円板状部
302と該円板状部の下面に該挿通孔と連通する内環状
垂下部303と該内環状垂下部と径方向外方に間隔を隔
てて垂下し、該内環状垂下部の外周面と円板状部の下面
とで幅広の環状凹溝304を形成する外環状垂下部30
5と該円板状部の外周面に垂下し、該外環状垂下部30
5の外周面と円板状部下面とで環状係合溝306を形成
する環状係合垂下部307と該環状係合垂下部の内周面
に形成された係合フック部308と該円板状部の外周面
上端部に該上端部から下方に向けて該環状係合垂下部の
外周面を囲繞するように漸次拡径して垂設された薄肉の
環状テ−パ−部309とを備えている。該環状係合垂下
部307の内周面に形成された係合フック部308は環
状係合溝306の外側上端から外方に向けて拡がるテ−
パ−面部と該テ−パ−面部と連続し内方に向けて収束す
るテ−パ−面部と該テ−パ−面部と連続する円筒面部と
からなる。該環状テ−パ−部309の端部は該上、下部
軸受ケ−スを組合せた時に該下部軸受ケ−ス200の円
板状部202下面より僅かに突出している。該環状テ−
パ−部の円板状部下面よりの突出量は後述のストラット
アッセンブリAに組込んだ時に上部バネ座シ−トの上面
に密に摺接させるための撓み代となる。
The upper bearing case 300 made of synthetic resin has a disk-shaped portion 302 having an insertion hole 301 having the same diameter as the insertion hole at the center and an inner surface communicating with the insertion hole at the lower surface of the disk-shaped portion. An annular hanging portion 303 and an inner hanging portion that hang radially outwardly with a space therebetween, and an outer circumferential groove of the inner annular hanging portion and a lower surface of the disk-shaped portion form a wide annular groove 304. Circular hanging part 30
5 and the outer peripheral surface of the disk-shaped portion, and the outer annular hanging portion 30.
5, an annular engaging hanging portion 307 that forms an annular engaging groove 306 between the outer peripheral surface of 5 and the lower surface of the disk-shaped portion, an engaging hook portion 308 formed on the inner peripheral surface of the annular engaging hanging portion, and the disc. A thin annular taper portion 309 is provided on the upper end portion of the outer peripheral surface of the groove portion, the thin annular taper portion 309 extending downward from the upper end portion so as to surround the outer peripheral surface of the annular engaging hanging portion. I have it. An engaging hook portion 308 formed on the inner peripheral surface of the annular engaging hanging portion 307 is a taper extending outward from the outer upper end of the annular engaging groove 306.
It comprises a taper surface portion, a taper surface portion which is continuous with the taper surface portion and converges inward, and a cylindrical surface portion which is continuous with the taper surface portion. The end of the annular taper portion 309 slightly protrudes from the lower surface of the disc-shaped portion 202 of the lower bearing case 200 when the upper and lower bearing cases are combined. The circular tape
The amount of protrusion of the par portion from the lower surface of the disk-shaped portion serves as a bending allowance for making a close slidable contact with the upper surface of the upper spring seat sheet when assembled in a strut assembly A described later.

【0014】合成樹脂製軸受体400は中央部に円孔4
01を有する円板からなり、該下部軸受ケ−ス200の
第一環状突起部204の外径より大きい内径を有し、第
二環状突起部206の内径より小さい外径を有する。該
合成樹脂製軸受体400の上、下面には該円孔401周
縁から外周面に貫通する複数個の溝402が円周方向に
等間隔に形成されている。該溝402はグリ−ス等の潤
滑剤の溜まり部となる。該軸受体400の上面に形成さ
れた溝402と下面に形成された溝402とは周方向に
位相差をもって形成されている。
The bearing 400 made of synthetic resin has a circular hole 4 in the center.
01 has a larger inner diameter than the outer diameter of the first annular protrusion 204 of the lower bearing case 200 and an outer diameter smaller than the inner diameter of the second annular protrusion 206 of the lower bearing case 200. On the upper and lower surfaces of the synthetic resin bearing body 400, a plurality of grooves 402 penetrating from the peripheral edge of the circular hole 401 to the outer peripheral surface are formed at equal intervals in the circumferential direction. The groove 402 serves as a reservoir for lubricant such as grease. The groove 402 formed on the upper surface of the bearing body 400 and the groove 402 formed on the lower surface are formed with a phase difference in the circumferential direction.

【0015】上記構成から成る軸受体400は下面を下
部軸受ケ−ス200の環状凹溝205の底面に摺接させ
て該環状凹溝に配されており、上部軸受ケ−ス300は
環状凹溝304の底面を該軸受体400の上面に摺接さ
せ、内環状垂下部303の端部および外環状垂下部30
5の端部を該下部軸受ケ−ス200の第一環状突起部2
04の端部および第二環状突起部206の端部とそれぞ
れの径方向に重畳させて係合させるとともに環状係合垂
下部の係合フック部308を該下部軸受ケ−スの環状係
合突出部の外周面の係合部209に弾性装着させ、該弾
性装着部、内環状垂下部303と第一環状突起部204
および外環状垂下部305と第二環状突起部206のそ
れぞれの重畳部にラビリンス作用による密封部を形成す
るとともに上部軸受ケ−スの環状テ−パ−部309は該
下部軸受ケ−スの外周面を囲繞して該下部軸受ケ−スと
相対回転可能に組合され、合成樹脂スラスト軸受100
が構成される。
The bearing body 400 having the above structure is disposed in the annular groove by sliding the lower surface thereof to the bottom surface of the annular groove 205 of the lower bearing case 200, and the upper bearing case 300 is arranged in the annular groove. The bottom surface of the groove 304 is brought into sliding contact with the upper surface of the bearing body 400, and the end portion of the inner annular hanging portion 303 and the outer annular hanging portion 30 are slid.
The end portion of 5 is the first annular protrusion 2 of the lower bearing case 200.
04 and the end of the second annular projection 206 are overlapped with each other in the radial direction and engaged, and the engaging hook portion 308 of the annular engaging hanging portion is engaged with the annular engaging protrusion of the lower bearing case. Elastically mounted on the engaging portion 209 on the outer peripheral surface of the portion, and the elastic mounting portion, the inner annular hanging portion 303 and the first annular protruding portion 204.
Further, a sealing portion is formed by a labyrinth action in the overlapping portion of each of the outer annular hanging portion 305 and the second annular protruding portion 206, and the annular taper portion 309 of the upper bearing case is an outer periphery of the lower bearing case. A synthetic resin thrust bearing 100 that surrounds a surface and is rotatably combined with the lower bearing case.
Is configured.

【0016】図3は上述した構成から成る合成樹脂スラ
スト軸受100をストラットアッセンブリAに組込んだ
状態を示すものである。該合成樹脂製下部軸受ケ−ス2
00の円板状部202の挿通孔201と該合成樹脂製上
部軸受ケ−ス300の内環状垂下部303の挿通孔30
1とをストラット500の上部バネ座シ−ト700の平
面部701中央に形成された挿通孔702を挿通して配
されたピストンロッド600の外周面に挿通し、該下部
軸受ケ−ス200の円板状部202下面に相対向して形
成された突起210を該上部バネ座シ−ト700の平面
部701に形成された孔703に嵌合させる。該下部軸
受ケ−ス200の円板状部202下面を上部バネ座シ−
ト700の平面部701に当接させ、該上部軸受ケ−ス
300の上面を車体側取付部材800に当接させ、該上
部軸受ケ−ス300の環状テ−パ−部309の端部を上
部バネ座シ−ト700の平面部701に密接させて合成
樹脂スラスト軸受100を上部バネ座シ−ト700と車
体側取付部材800との間に配置するものである。この
ように合成樹脂スラスト軸受100を組込んだストラッ
トアッセンブリAにおいて、ステアリング操作により車
体側取付部材800と上部バネ座シ−ト700との間に
相対回転が生じた場合、該下部軸受ケ−ス200と該上
部軸受ケ−ス300は該合成樹脂製軸受体400を介し
て該下部軸受ケ−ス200と該合成樹脂製軸受体400
の摺接面、該上部軸受ケ−ス300と該合成樹脂製軸受
体400の摺接面の何れか摩擦係数の小さい方で相対回
転し、円滑な操舵力が得られる。
FIG. 3 shows a state in which the synthetic resin thrust bearing 100 having the above-described structure is incorporated in the strut assembly A. The synthetic resin lower bearing case 2
00 of the disk-shaped portion 202 and the insertion hole 30 of the inner annular hanging portion 303 of the synthetic resin upper bearing case 300.
1 and 2 are inserted into the outer peripheral surface of the piston rod 600 arranged through the through hole 702 formed in the center of the plane portion 701 of the upper spring seat 700 of the strut 500, and the lower bearing case 200 of the lower bearing case 200 is inserted. The protrusions 210 formed on the lower surface of the disk-shaped portion 202 so as to face each other are fitted into the holes 703 formed in the flat portion 701 of the upper spring seat 700. The lower surface of the disk-shaped portion 202 of the lower bearing case 200 is attached to the upper spring seat sheath.
Of the upper bearing case 300, the upper surface of the upper bearing case 300 is brought into contact with the vehicle body side mounting member 800, and the end of the annular taper portion 309 of the upper bearing case 300 is brought into contact with the flat portion 701. The synthetic resin thrust bearing 100 is arranged between the upper spring seat 700 and the vehicle body side mounting member 800 so as to be in close contact with the flat surface portion 701 of the upper spring seat 700. In the strut assembly A incorporating the synthetic resin thrust bearing 100 as described above, when relative rotation occurs between the vehicle body side mounting member 800 and the upper spring seat 700 by steering operation, the lower bearing case 200 and the upper bearing case 300, the lower bearing case 200 and the synthetic resin bearing body 400 via the synthetic resin bearing body 400.
The sliding contact surface of the upper bearing case 300 or the sliding contact surface of the synthetic resin bearing body 400, whichever has a smaller friction coefficient, rotates relatively to obtain a smooth steering force.

【0017】該上部軸受ケ−ス300と該下部軸受ケ−
ス200の間に形成される軸受摺動面は環状テ−パ−部
309と上部バネ座シ−トとの密接部に形成された密封
部と係合フック部308と係合部209との弾性装着
部、内環状垂下部303と第一環状突起部204との重
畳部、外環状垂下部305と第二環状突起部206との
重畳部のそれぞれに形成されたラビリンス作用による密
封部とによって塵埃、泥水等の侵入から保護される。環
状テ−パ−部309は上部バネ座シ−トとの摺接におい
て、摩擦特性の優れた合成樹脂で形成されているため摺
動特性の低下をきたすことがなく、円滑なステアリング
操作に影響を与えることはない。
The upper bearing case 300 and the lower bearing case
The bearing sliding surface formed between the spaces 200 is composed of the sealing portion formed at the close contact portion between the annular taper portion 309 and the upper spring seat, the engaging hook portion 308, and the engaging portion 209. By the elastic mounting portion, the overlapping portion of the inner annular hanging portion 303 and the first annular protruding portion 204, and the sealing portion formed by the labyrinth action formed on the overlapping portion of the outer annular hanging portion 305 and the second annular protruding portion 206, respectively. Protected against ingress of dust and muddy water. Since the annular taper portion 309 is formed of synthetic resin having excellent friction characteristics in sliding contact with the upper spring seat, it does not deteriorate sliding characteristics and affects smooth steering operation. Never give.

【0018】図4は本発明の合成樹脂スラスト軸受の他
の実施例を示すものである。この実施例からなる合成樹
脂スラスト軸受は、前述した実施例からなるスラスト軸
受にさらに内周面側にラビリンス作用による密封部を形
成したものである。図中のその他の構成は前記実施例と
同様で、同様の符号をもって示している。この実施例で
は該上部軸受ケ−ス300と該下部軸受ケ−ス200の
間に形成される軸受摺動面は前記実施例で述べた係合フ
ック部308と係合部209との弾性装着部、内環状垂
下部303と第一環状突起部204との重畳部、外環状
垂下部305と第二環状突起部206との重畳部に加え
て、環状垂下部311と環状突起部211との重畳部の
それぞれに形成されたラビリンス作用による密封部によ
って塵埃、泥水等の侵入から保護される。また同様に軸
受摺動面は環状テ−パ−部309と上部バネ座シ−トと
の密接部に形成された密封部のシ−ル作用によって特に
軸受外径面からの塵埃、泥水等の侵入から保護されるの
で、軸受摺動面への塵埃、泥水等の侵入に起因する摺動
特性の低下などを生ずることなく長期間にわたって円滑
なステアリング操作が維持される。
FIG. 4 shows another embodiment of the synthetic resin thrust bearing of the present invention. The synthetic resin thrust bearing according to this embodiment is the thrust bearing according to the above-mentioned embodiment further having a sealed portion formed by a labyrinth action on the inner peripheral surface side. Other configurations in the figure are the same as those in the above-described embodiment, and are denoted by the same reference numerals. In this embodiment, the bearing sliding surface formed between the upper bearing case 300 and the lower bearing case 200 is elastically attached to the engaging hook portion 308 and the engaging portion 209 described in the above embodiment. In addition to the portion, the overlapping portion of the inner annular hanging portion 303 and the first annular protruding portion 204, the overlapping portion of the outer annular hanging portion 305 and the second annular protruding portion 206, the annular hanging portion 311 and the annular protruding portion 211. The labyrinth seals formed in each of the overlapping portions protect the dust and muddy water from entering. Similarly, the sliding surface of the bearing is sealed by a sealing portion formed in the close contact portion between the annular taper portion 309 and the upper spring seat, so that dust, muddy water, etc., particularly from the outer diameter surface of the bearing, are prevented. Since it is protected from intrusion, smooth steering operation is maintained for a long period of time without causing deterioration of sliding characteristics due to intrusion of dust, muddy water, or the like into the bearing sliding surface.

【0019】図5は本発明の合成樹脂スラスト軸受のさ
らに他の実施例を示すものである。この実施例は前記合
成樹脂スラスト軸受100における合成樹脂製下部軸受
ケ−ス200の円板状部202下面に形成された相手取
付部への位置決め用の突起212に代えて、該下部軸受
ケ−ス200の円板状部202下面に、円板状部の中央
挿通孔201と連通して円筒突出部212aを形成した
もので、その他の構成は前記実施例と同一の符号をもっ
て示している。この実施例から成る合成樹脂スラスト軸
受100は、該円筒突出部212aを前記上部バネ座シ
−ト700の平面部701中央に形成された孔702に
圧入固定される。
FIG. 5 shows still another embodiment of the synthetic resin thrust bearing of the present invention. In this embodiment, instead of the projection 212 for positioning to the mating mounting portion formed on the lower surface of the disk-shaped portion 202 of the synthetic resin lower bearing case 200 in the synthetic resin thrust bearing 100, the lower bearing case is replaced. A cylindrical protruding portion 212a is formed on the lower surface of the disc-shaped portion 202 of the sleeve 200 so as to communicate with the central insertion hole 201 of the disc-shaped portion, and other configurations are indicated by the same reference numerals as those in the above-described embodiment. In the synthetic resin thrust bearing 100 according to this embodiment, the cylindrical protrusion 212a is press-fitted and fixed in a hole 702 formed in the center of the flat surface 701 of the upper spring seat 700.

【0020】上述した図4の構成から成る合成樹脂スラ
スト軸受においても、該合成樹脂製下部軸受ケ−ス20
0の円板状部202下面に該円板状部の中央挿通孔20
1と連通する円筒突出部212aを形成することもでき
る。
Also in the synthetic resin thrust bearing having the structure shown in FIG. 4, the lower bearing case 20 made of synthetic resin is used.
0 on the lower surface of the disk-shaped portion 202, the central insertion hole 20 of the disk-shaped portion
It is also possible to form a cylindrical protrusion 212a communicating with 1.

【0021】[0021]

【発明の効果】合成樹脂製上、下部軸受ケ−スの弾性装
着部および内、外周側の重畳部に形成されたラビリンス
作用による密封部および上部軸受ケ−スに形成された環
状テ−パ−部と上部バネ座シ−トとの密接部に形成され
た密封部により、特に軸受外径面からの軸受摺動面への
塵埃、泥水等異物の侵入が防止されるので軸受摺動面へ
の異物の侵入に起因する摩擦摩耗特性を低下させること
なく円滑な操舵力が長期間にわたって維持される。
EFFECTS OF THE INVENTION An annular taper formed of synthetic resin on the elastic mounting portion of the upper and lower bearing cases and a sealing portion formed by the labyrinth action formed on the inner and outer peripheral overlapping portions and the upper bearing case. The sealing part formed in the close contact part between the negative part and the upper spring seat prevents foreign matter such as dust and muddy water from entering the bearing sliding surface, especially from the bearing outer diameter surface. The smooth steering force is maintained for a long period of time without deteriorating the frictional wear characteristics due to the entry of foreign matter into the vehicle.

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

【図1】本発明による合成樹脂スラスト軸受の好ましい
実施例を示す縦断面図である。
FIG. 1 is a vertical sectional view showing a preferred embodiment of a synthetic resin thrust bearing according to the present invention.

【図2】図1における合成樹脂製下部軸受ケ−スと合成
樹脂製軸受体とを示す平面図である。
FIG. 2 is a plan view showing a synthetic resin lower bearing case and a synthetic resin bearing body in FIG.

【図3】図1に示す合成樹脂スラスト軸受をストラット
アッセンブリに組込んだ状態を示す縦断面図である。
FIG. 3 is a vertical cross-sectional view showing a state where the synthetic resin thrust bearing shown in FIG. 1 is incorporated in a strut assembly.

【図4】図1に示す合成樹脂スラスト軸受の他の実施例
を示す縦断面図である。
4 is a vertical sectional view showing another embodiment of the synthetic resin thrust bearing shown in FIG.

【図5】図1に示す合成樹脂スラスト軸受のさらに他の
実施例を示す縦断面図である。
5 is a longitudinal sectional view showing still another embodiment of the synthetic resin thrust bearing shown in FIG.

【図6】従来の合成樹脂スラスト軸受を示す縦断面図で
ある。
FIG. 6 is a vertical sectional view showing a conventional synthetic resin thrust bearing.

【図7】従来の他の合成樹脂スラスト軸受を示す縦断面
図である。
FIG. 7 is a vertical sectional view showing another conventional synthetic resin thrust bearing.

【符号の説明】[Explanation of symbols]

100 合成樹脂スラスト軸受 200 合成樹脂製下部軸受ケ−ス 202 円板状部 203 環状平面部 204 第一環状突起部 205 環状凹溝 206 第二環状突起部 208 環状係合突出部 209 係合部 210 環状溝 211 環状突起部 300 合成樹脂製上部軸受ケ−ス 302 円板状部 303 内環状垂下部 304 環状凹溝 305 外環状垂下部 307 環状係合垂下部 308 係合フック部 309 環状テ−パ−部 310 環状溝 311 環状垂下部 400 合成樹脂製軸受体 100 synthetic resin thrust bearing 200 synthetic resin lower bearing case 202 disc-shaped portion 203 annular flat surface portion 204 first annular protrusion portion 205 annular recess groove 206 second annular protrusion portion 208 annular engagement protrusion portion 209 engagement portion 210 Annular groove 211 Annular protrusion 300 Synthetic resin upper bearing case 302 Disc-shaped portion 303 Inner annular hanging portion 304 Annular groove 305 Outer annular hanging portion 307 Annular engaging hanging portion 308 Engaging hook portion 309 Annular taper -Part 310 Annular groove 311 Annular hanging part 400 Synthetic resin bearing body

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 中央部に挿通孔(201)を有する円板
状部(202)と該円板状部の上面に該挿通孔と連なる
環状平面部(203)を残して該挿通孔と同心状に突設
された第一環状突起部(204)と該第一環状突起部と
径方向外方に間隔を隔てて突設され、該第一環状突起部
の外周面と円板状部の上面とで幅広の環状凹溝(20
5)を形成する第二環状突起部(206)と該円板状部
の外周縁に突設された環状係合突出部(208)と該環
状係合突出部の外周面に形成された係合部(209)と
を備えた合成樹脂製下部軸受ケ−ス(200)と、中央
部に前記挿通孔と同径の挿通孔(301)を有する円板
状部(302)と該円板状部の下面に該挿通孔と連通す
る内環状垂下部(303)と該内環状垂下部と径方向外
方に間隔を隔てて垂下し、該内環状垂下部の外周面と円
板状部の下面とで幅広の環状凹溝(304)を形成する
外環状垂下部(305)と該円板状部の外周面に垂下す
る環状係合垂下部(307)と該環状係合垂下部の内周
面に形成された係合フック部(308)と該円板状部の
外周面上端部に該上端部から下方に向けて該環状係合垂
下部の外周面を囲繞するように漸次拡径して垂設された
薄肉の環状テ−パ−部(309)とを備えた合成樹脂製
上部軸受ケ−ス(300)と、中央部に円孔(401)
を有する円板からなる合成樹脂製軸受体(400)と、
から成り、該軸受体(400)は下面を前記下部軸受ケ
−ス(200)の環状凹溝(205)底面に摺接させて
該環状凹溝に配されており、該上部軸受ケ−ス(30
0)は環状凹溝(304)の底面を該軸受体の上面に摺
接させ、内環状垂下部(303)および外環状垂下部
(305)の端部をそれぞれ該下部軸受ケ−スの第一環
状突起部(204)および第二環状突起部(206)の
端部とその径方向に重畳させて係合させるとともに環状
係合垂下部(307)の係合フック部(308)を該下
部軸受ケ−スの環状係合突出部外周面の係合部(20
9)に弾性装着させ、該弾性装着部、内環状垂下部(3
03)と第一環状突起部(204)および外環状垂下部
(305)と第二環状突起部(206)のそれぞれの重
畳部にラビリンス作用による密封部を形成するとともに
上部軸受ケ−スの環状テ−パ−部は該下部軸受ケ−スの
外周面を囲繞して該下部軸受ケ−スに組合されているこ
とを特徴とする合成樹脂スラスト軸受。
1. A disk-shaped portion (202) having an insertion hole (201) in a central portion thereof, and an annular flat surface portion (203) connected to the insertion hole on the upper surface of the disk-shaped portion, concentric with the insertion hole. Of the first annular protrusion (204) and the first annular protrusion that are radially outwardly spaced apart from each other and are spaced apart from each other. Wide annular groove (20
5) forming a second annular protrusion (206), an annular engagement protrusion (208) protruding from the outer peripheral edge of the disc-shaped portion, and an engagement formed on the outer peripheral surface of the annular engagement protrusion. Lower bearing case (200) made of synthetic resin having a joint portion (209), a disc-shaped portion (302) having a through hole (301) of the same diameter as the through hole in the central portion, and the disc. An inner annular hanging portion (303) communicating with the insertion hole on the lower surface of the annular portion, and a radially outer portion of the inner annular hanging portion (303) that is distant from the inner annular hanging portion with a space therebetween, and a disc-shaped portion. An outer annular hanging portion (305) forming a wide annular concave groove (304) with the lower surface of the annular engaging hanging portion (307) hanging on the outer peripheral surface of the disc-shaped portion, and an annular engaging hanging portion of the annular engaging hanging portion. The engaging hook portion (308) formed on the inner peripheral surface and the upper end portion of the outer peripheral surface of the disk-shaped portion enclose the outer peripheral surface of the annular engaging hanging portion downward from the upper end portion. To so gradually diverging to vertically have been thin annular Te - Pa - section (309) and the synthetic resin-made upper bearing Ke equipped with - scan and (300), circular hole in a central portion (401)
A synthetic resin bearing body (400) made of a disc having
The bearing body (400) is disposed in the annular groove by sliding its lower surface into contact with the bottom surface of the annular groove (205) of the lower bearing case (200). (30
In 0), the bottom surface of the annular groove (304) is brought into sliding contact with the upper surface of the bearing body, and the end portions of the inner annular hanging portion (303) and the outer annular hanging portion (305) are respectively located at the first of the lower bearing case. The end portions of the one annular protrusion portion (204) and the second annular protrusion portion (206) are overlapped and engaged in the radial direction thereof, and the engagement hook portion (308) of the annular engagement hanging portion (307) is attached to the lower portion. Engagement portion (20) of the outer peripheral surface of the annular engagement protrusion of the bearing case
9) is elastically attached to the elastic attachment portion and the inner annular hanging portion (3
03) and the first annular protrusion (204) and the outer annular hanging portion (305) and the second annular protrusion (206) at the respective overlapping portions to form a sealing portion by a labyrinth action and an annular shape of the upper bearing case. A synthetic resin thrust bearing characterized in that a taper portion surrounds an outer peripheral surface of the lower bearing case and is combined with the lower bearing case.
【請求項2】 該下部軸受ケ−スの幅広の環状凹溝には
第一環状突起部の外周面と該凹溝の底面とで環状溝(2
10)を画定して突出する環状突起部(211)が形成
されており、該上部軸受ケ−スの幅広の環状凹溝には内
環状垂下部の外周面と該凹溝の底面とで環状溝(31
0)を画定して垂下する環状垂下部(311)が形成さ
れており、該環状垂下部はその端部を該環状突起部の端
部にその径方向に重畳させて組合されており、該重畳部
にラビリンス作用による密封部が形成されてなる請求項
1に記載の合成樹脂スラスト軸受。
2. The wide annular recessed groove of the lower bearing case includes an annular groove (2) formed by an outer peripheral surface of the first annular protrusion and a bottom surface of the recessed groove.
An annular projection (211) is formed to define and project 10), and the wide annular concave groove of the upper bearing case is formed by the outer peripheral surface of the inner annular hanging portion and the bottom surface of the concave groove. Groove (31
0) is defined to hang down, and an annular hanging portion (311) is formed, and the annular hanging portion is combined with its end portion overlapping with the end portion of the annular protruding portion in the radial direction thereof. The synthetic resin thrust bearing according to claim 1, wherein a sealing portion formed by a labyrinth action is formed in the overlapping portion.
【請求項3】 該上部軸受ケ−スを該車体側取付部材に
当接させ、該下部軸受ケ−スを該上部バネ座シ−トに当
接させるとともに、該上部軸受ケ−スの環状テ−パ−部
の端部を該上部バネ座シ−トの上面に密に摺接させてス
トラットアッセンブリのストラットの上部バネ座シ−ト
と車体側取付部材との間に配されてなる請求項1又は2
に記載の合成樹脂スラスト軸受。
3. The upper bearing case is brought into contact with the vehicle-body-side mounting member, the lower bearing case is brought into contact with the upper spring seat, and the upper bearing case has an annular shape. An end portion of the taper portion is closely slid on the upper surface of the upper spring seat and is disposed between the upper spring seat of the strut of the strut assembly and the vehicle body side mounting member. Item 1 or 2
The synthetic resin thrust bearing described in.
JP6114417A 1994-04-28 1994-04-28 Synthetic resin thrust bearing Pending JPH07301226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6114417A JPH07301226A (en) 1994-04-28 1994-04-28 Synthetic resin thrust bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6114417A JPH07301226A (en) 1994-04-28 1994-04-28 Synthetic resin thrust bearing

Publications (1)

Publication Number Publication Date
JPH07301226A true JPH07301226A (en) 1995-11-14

Family

ID=14637186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6114417A Pending JPH07301226A (en) 1994-04-28 1994-04-28 Synthetic resin thrust bearing

Country Status (1)

Country Link
JP (1) JPH07301226A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1113767A (en) * 1997-06-25 1999-01-22 Oiles Ind Co Ltd Synthetic resin thrust bearing
KR100448214B1 (en) * 2002-08-20 2004-09-10 에프에이지베어링코리아유한회사 thrust bearing made of plastic

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5927347U (en) * 1982-08-16 1984-02-20 オイレス工業株式会社 strut thrust bearing
JPS60161737U (en) * 1984-04-05 1985-10-26 日産自動車株式会社 strut thrust bearing
JPS63101326U (en) * 1986-12-23 1988-07-01
JPH02107823U (en) * 1989-02-14 1990-08-28

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5927347U (en) * 1982-08-16 1984-02-20 オイレス工業株式会社 strut thrust bearing
JPS60161737U (en) * 1984-04-05 1985-10-26 日産自動車株式会社 strut thrust bearing
JPS63101326U (en) * 1986-12-23 1988-07-01
JPH02107823U (en) * 1989-02-14 1990-08-28

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1113767A (en) * 1997-06-25 1999-01-22 Oiles Ind Co Ltd Synthetic resin thrust bearing
KR100448214B1 (en) * 2002-08-20 2004-09-10 에프에이지베어링코리아유한회사 thrust bearing made of plastic

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