JPS6221802Y2 - - Google Patents
Info
- Publication number
- JPS6221802Y2 JPS6221802Y2 JP1981155496U JP15549681U JPS6221802Y2 JP S6221802 Y2 JPS6221802 Y2 JP S6221802Y2 JP 1981155496 U JP1981155496 U JP 1981155496U JP 15549681 U JP15549681 U JP 15549681U JP S6221802 Y2 JPS6221802 Y2 JP S6221802Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- housing
- synthetic resin
- shock absorber
- cylindrical portion
- 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
- 239000002184 metal Substances 0.000 claims description 30
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 229920003002 synthetic resin Polymers 0.000 claims description 25
- 239000000057 synthetic resin Substances 0.000 claims description 25
- 239000006096 absorbing agent Substances 0.000 claims description 13
- 230000035939 shock Effects 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- 241000357293 Leptobrama muelleri Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920003776 Reny® Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- -1 polyoxymethylene Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Description
【考案の詳細な説明】
本願考案はとくに自動車のマクフアーソンスト
ラツト型およびダブルウイツシユボーン型サスペ
ンシヨンに使用される複筒形シヨツクアブソーバ
ーのピストンロツドを摺動案内するロツドガイド
軸受体の改良に関するものである。[Detailed description of the invention] The present invention relates to an improvement of a rod guide bearing body that slides and guides the piston rod of a double-tube shock absorber used particularly in McPherson strut type and double wishbone type suspensions of automobiles. It is.
従来より、この箇所の軸受としては鋼製の裏金
と該裏金表面に施された焼結金属多孔質層と該多
孔質層に含浸被着された合成樹脂層とからなり、
該合成樹脂層を内側に巻いて円筒状に形成された
複層軸受が鉄系焼結体からなるハウジング内に圧
入嵌合されて使用されている。 Conventionally, bearings at this location have been made of a steel back metal, a sintered metal porous layer applied to the surface of the back metal, and a synthetic resin layer impregnated and adhered to the porous layer.
A multilayer bearing formed into a cylindrical shape by wrapping the synthetic resin layer inside is press-fitted into a housing made of an iron-based sintered body.
この複層軸受は摺動面を形成する合成樹脂層が
鋼製の裏金に補強されているため比較的高荷重に
耐えられるという長所を有する反面、この複層軸
受はその製造上、円筒状に巻く工程を有すること
から、その内外径寸法にバラツキを生じ寸法精度
よく製造することが難しいという欠点がある。加
えて、これをハウジングに圧入嵌合した場合、ハ
ウジングの穴径寸法のバラツキとが重なつてハウ
ジング内に圧入嵌合された複層軸受の内径寸法に
一層のバラツキを生じ、該軸受に摺動案内される
ピストンロツドの円滑な摺動を妨げるという欠点
を惹起することになる。 This multilayer bearing has the advantage of being able to withstand relatively high loads because the synthetic resin layer that forms the sliding surface is reinforced with a steel backing. Since it involves a winding process, it has the disadvantage that its inner and outer diameter dimensions vary, making it difficult to manufacture with high dimensional accuracy. In addition, when this is press-fitted into a housing, the variation in the hole diameter size of the housing overlaps with the variation in the inner diameter dimension of the multilayer bearing press-fitted into the housing, and the bearing slides. This results in the disadvantage that the smooth sliding of the piston rod being guided by the piston rod is hindered.
また、複層軸受をハウジング内に単に圧入嵌合
する方法では、該軸受がハウジングからしばしば
抜け出すという欠点も起る。 Furthermore, the method of simply press-fitting the multilayer bearing into the housing has the disadvantage that the bearing often slips out of the housing.
本考案は、複層軸受を該軸受の外周面ならびに
端面を覆つて一体に成形された合成樹脂ハウジン
グで固定することにより上述した欠点を解決した
ものである。 The present invention solves the above-mentioned drawbacks by fixing a multilayer bearing with a synthetic resin housing that is integrally molded to cover the outer peripheral surface and end surface of the bearing.
すなわち、本願考案は車両用マクフアーソンス
トラツト型およびダブルウイツシユボーン型サス
ペンシヨンに使用される複筒形シヨツクアブソー
バーのピストンロツドを摺動案内し、該シヨツク
アブソーバーの外筒上端に装着されるロツドガイ
ド軸受体において、金属性の薄板からなる裏金と
該裏金の表面に一体に形成された焼結金属多孔質
層と該多孔質層に含浸被着された耐摩耗性を有す
る合成樹脂層とからなり、該合成樹脂層を内側に
巻いて円筒状に形成された複層軸受をもつて摺動
案内部が構成され、該軸受の外周面ならびに端面
裏金部分を覆つて一体に形成された剛性を有する
合成樹脂部をもつてハウジングが一体に形成され
ており、該ハウジングには、前記シヨツクアブソ
ーバーの内筒内側に嵌合される小円筒部と該小円
筒部と段部をもつて拡径された環状鍔部と該鍔部
と段部をもつて縮径された円筒部とが形成されて
おり、該環状鍔部および円筒部には、該鍔部をロ
ツド軸線方向に貫通し、円筒部外面を削剥して円
筒部端面に開口する連通口が形成された複筒形シ
ヨツクアブソーバーのロツドガイド軸受体を提供
するものである。 That is, the present invention provides a rod guide that slides and guides the piston rod of a dual cylinder shock absorber used in McPherson strut type and double wishbone type suspensions for vehicles, and is attached to the upper end of the outer cylinder of the shock absorber. The bearing body consists of a back metal made of a thin metal plate, a sintered metal porous layer integrally formed on the surface of the back metal, and a wear-resistant synthetic resin layer impregnated and adhered to the porous layer. , the sliding guide part is constituted by a multi-layer bearing formed into a cylindrical shape by wrapping the synthetic resin layer inside, and has rigidity formed integrally by covering the outer circumferential surface and end surface back metal part of the bearing. A housing is integrally formed with a synthetic resin portion, and the housing includes a small cylindrical portion that is fitted inside the inner cylinder of the shock absorber, and a stepped portion that is enlarged in diameter. An annular flange portion and a cylindrical portion having a reduced diameter with the flange portion and a stepped portion are formed. The present invention provides a rod guide bearing body for a bicylindrical shock absorber in which a communication port opening at the end surface of a cylindrical portion is formed by scraping off the rod.
以下本考案の実施例を図面によつて詳述する。 Embodiments of the present invention will be described in detail below with reference to the drawings.
１は複筒形シヨツクアブソーバーＡの外筒であ
り、該外筒１は下端部が車輪に連結される。２は
その内筒であり、該内筒内には油が充填されてお
り、下端部で流量調整弁（図示せず）を介して外
筒と通じている。３は内筒２内に配されたピスト
ンロツドであり、該ピストンロツドの先端には流
量調整孔が設けられたピストン（図示せず）が固
定されており、その他端は該内筒２より突出して
車体に連結される。４は前記外筒１の端部に装着
されるロツドガイド軸受体である。該ロツドガイ
ド軸受体４は複層軸受５と、該複層軸受５の外周
面およびその端面部を覆つて一体に形成された剛
性を有する合成樹脂ハウジング６とから構成され
ている。該複層軸受５は、鋼などの薄板からなる
裏金５１と該裏金５１の表面に一体に形成された
焼結金属多孔質層５２と該多孔質層５２に含浸被
着された耐摩耗性を有する合成樹脂層５３とから
なり、該合成樹脂層５３を内側に巻いて円筒状に
形成されたものである。５４は円筒状に巻いて複
層軸受５を形成したさいに該複層軸受５に形成さ
れる突き合わせ部である。 Reference numeral 1 denotes an outer cylinder of a double-tube shock absorber A, and the lower end of the outer cylinder 1 is connected to a wheel. Reference numeral 2 designates the inner cylinder, which is filled with oil and communicates with the outer cylinder at its lower end via a flow rate regulating valve (not shown). Reference numeral 3 designates a piston rod disposed within the inner cylinder 2. A piston (not shown) provided with a flow rate adjustment hole is fixed at the tip of the piston rod, and the other end protrudes from the inner cylinder 2 and is attached to the vehicle body. connected to. Reference numeral 4 denotes a rod guide bearing body mounted on the end of the outer cylinder 1. The rod guide bearing body 4 is composed of a multilayer bearing 5 and a rigid synthetic resin housing 6 integrally formed to cover the outer circumferential surface of the multilayer bearing 5 and its end surface. The multilayer bearing 5 includes a back metal 51 made of a thin plate of steel, a sintered metal porous layer 52 integrally formed on the surface of the back metal 51, and a wear-resistant layer 52 impregnated into the porous layer 52. The synthetic resin layer 53 is wound inward to form a cylindrical shape. Reference numeral 54 denotes an abutment portion formed in the multilayer bearing 5 when the multilayer bearing 5 is formed by winding it into a cylindrical shape.
そして、上述した構成からなる複層軸受５とし
ては、たとえば特公昭49−44597号に開示されて
いる金属裏金の表面に施された焼結金属多孔質層
に常温で液体か加温時液体となる潤滑油剤を均一
微細に分散含有したポリオキシメチレンやポリア
ミドなどの熱可塑性合成樹脂が被着された複層軸
受、特開昭52−111631号に開示されている金属裏
金の表面に施された焼結金属多孔質層に四フツ化
エチレン樹脂（PTFE）と四フツ化エチレン一六
フツ化プロピレン共重合体（FEP）との混合物
とからなる樹脂組成物が含浸被着された複層軸
受、さらには金属裏金の表面に施された焼結金属
多孔質層に四フツ化エチレン樹脂を主成分とし、
これに鉛、鉛酸化物などの充填材を含有した組成
物が含浸被着された複層軸受などが使用されて好
適である。 The multilayer bearing 5 having the above-mentioned structure is disclosed in, for example, Japanese Patent Publication No. 49-44597, in which a sintered metal porous layer formed on the surface of a metal backing is liquid at room temperature or liquid when heated. A multi-layer bearing coated with a thermoplastic synthetic resin such as polyoxymethylene or polyamide containing a uniformly and finely dispersed lubricant, which is coated on the surface of a metal backing disclosed in JP-A-52-111631. A multilayer bearing in which a sintered metal porous layer is impregnated with a resin composition consisting of a mixture of tetrafluoroethylene resin (PTFE) and tetrafluoroethylene hexafluoropropylene copolymer (FEP); Furthermore, the sintered metal porous layer applied to the surface of the metal backing has tetrafluoroethylene resin as its main component,
It is preferable to use a multilayer bearing impregnated with a composition containing a filler such as lead or lead oxide.
該複層軸受５の外周面ならびに該軸受５の端面
裏金部分５１を覆つて一体に成形される剛性を有
する合成樹脂ハウジング６は、前記シヨツクアブ
ソーバーＡの内筒２の端部内面に嵌合される小円
筒部６１と該小円筒部６１と段部６２をもつて拡
径する環状鍔部６３と該鍔部６３と段部６４をも
つて縮径する円筒部６５とからなり、該円筒部６
５の端面には環状凹部６６が形成されている。該
合成樹脂ハウジング６内に固定された複層軸受５
は、その端面裏金部分５１が該ハウジング６によ
り覆われているため該ハウジング６からの軸線方
向への抜けは防止される。６７は該環状鍔部６３
に相対向して形成された切り欠き凹溝であり、該
凹溝６７は鍔部６３をロツド軸線方向に貫通し該
鍔部と連続する円筒部６５外面を削剥して円筒部
端面に開口している。該凹溝６７はシヨツクアブ
ソーバーＡの作動時に内筒２内のピストンが上昇
する際、ロツド３と複層軸受５間の隙間から流出
した油が内筒２と外筒１の空間部Ｓへ流入するよ
うに設けられた連通口の役割を果すものである。
なお、連通口にはこの切欠き凹溝６７のかわりに
環状鍔部６３に該鍔部６３を貫通する連通孔を形
成することにより同様の効果が得られる。 A synthetic resin housing 6 having rigidity and integrally molded to cover the outer circumferential surface of the multilayer bearing 5 and the end back metal portion 51 of the bearing 5 is fitted onto the inner surface of the end of the inner cylinder 2 of the shock absorber A. It consists of a small cylindrical part 61, an annular flange part 63 whose diameter is expanded by the small cylindrical part 61 and a step part 62, and a cylindrical part 65 which has a diameter reduced by the flange part 63 and a step part 64. 6
An annular recess 66 is formed in the end face of the ring 5. A multilayer bearing 5 fixed within the synthetic resin housing 6
Since the end back metal portion 51 is covered by the housing 6, it is prevented from coming off from the housing 6 in the axial direction. 67 is the annular collar portion 63
The groove 67 is a notched groove formed to face each other, and the groove 67 penetrates the flange 63 in the rod axis direction and is opened at the end surface of the cylindrical portion by scraping off the outer surface of the cylindrical portion 65 that is continuous with the flange. ing. The groove 67 allows oil flowing out from the gap between the rod 3 and the multilayer bearing 5 to flow into the space S between the inner cylinder 2 and the outer cylinder 1 when the piston in the inner cylinder 2 rises when the shock absorber A is activated. It serves as a communication port provided to
Note that the same effect can be obtained by forming a communication hole penetrating the annular flange 63 in the annular flange 63 instead of the notched groove 67 in the communication port.
上述したハウジングを構成する材料としては、
寸法安定性に優れ、熱膨張係数が小さく、かつ剛
性を有する合成樹脂が使用される。たとえば三菱
瓦斯化学株式会社製の50％ガラス繊維強化ナイロ
ン樹脂（商品名RENY）は好適な材料の一つであ
る。 The materials constituting the above-mentioned housing include:
A synthetic resin is used that has excellent dimensional stability, a small coefficient of thermal expansion, and rigidity. For example, 50% glass fiber reinforced nylon resin (trade name: RENY) manufactured by Mitsubishi Gas Chemical Co., Ltd. is one suitable material.
そして、前述した複層軸受５の外周面ならびに
該軸受の端面裏金５１部分を覆つて一体成形によ
り合成樹脂ハウジングを形成する方法はつぎのよ
うに行なわれる。先ず、複層軸受５の内面にコア
（心棒）を嵌挿して、これを所定の形状を有する
金型内に設置する。このときコア外周面に嵌挿さ
れた複層軸受５の突き合わせ部５４は若干の隙間
をもつている。そして該コアに嵌挿された複層軸
受５の突き合わせ部５４から90度以上離れた軸受
外周面側に射出ノズルを設置し、該ノズルから合
成樹脂を射出成形することにより射出された合成
樹脂は複層軸受５の外周面を包囲しながら流れ込
み、該軸受５をコア側に圧縮する。この複層軸受
５の圧縮により、複層軸受５の突き合わせ部５４
は当接し、該突き合わせ部５４への合成樹脂の流
入はなく寸法精度のよい軸受内周面をもつたロツ
ドガイド軸受体４が形成される。 The method of forming a synthetic resin housing by integral molding to cover the outer circumferential surface of the above-mentioned multilayer bearing 5 and the end face back metal 51 portion of the bearing is carried out as follows. First, a core (mandrel) is inserted into the inner surface of the multilayer bearing 5, and the core is placed in a mold having a predetermined shape. At this time, the abutting portion 54 of the multilayer bearing 5 fitted onto the outer peripheral surface of the core has a slight gap. Then, an injection nozzle is installed on the outer peripheral surface of the bearing at a distance of 90 degrees or more from the abutting portion 54 of the multilayer bearing 5 fitted into the core, and the synthetic resin is injected from the nozzle by injection molding. It flows into the multilayer bearing 5 while surrounding its outer peripheral surface, compressing the bearing 5 toward the core. Due to this compression of the multilayer bearing 5, the abutting portion 54 of the multilayer bearing 5
abut against each other, and no synthetic resin flows into the abutting portion 54, forming the rod guide bearing body 4 having a bearing inner circumferential surface with good dimensional accuracy.
本考案のロツドガイド軸受体は、複層軸受５と
合成樹脂ハウジングの射出成形による一体成形品
からなり、その製造にあたつては複層軸受５の外
周面ならびに端面裏金部分を覆つて射出成形され
る合成樹脂の成形圧力は一定に保つことができる
ことから複層軸受５の内径寸法だけを管理するこ
とにより、寸法精度のよい軸受内周面をもつたロ
ツドガイド軸受体を得ることができ、その製造作
業が容易であるのに対し、従来の焼結金属ハウジ
ングに複層軸受を圧入する方法では該複層軸受の
内径寸法を精度よく形成してもハウジングの穴径
の寸法精度に影響されるため、その製造にあたつ
ては複層軸受の内・外径ハウジングの穴径の寸法
精度を管理する必要を生じ、その製造作業が非常
に煩雑となる。このように形成されたロツドガイ
ド軸受体４は複層軸受５の内面にピストンロツド
３を嵌挿し、小円筒部６１が内筒２の上端部内面
に嵌合される。このとき内筒２の上端部が当接す
る小円筒部６１と連接する段部６２に金属性のワ
ツシヤーを埋設することにより当接部の強度を上
げることができる。７は金属製の中空キヤツプ
で、該キヤツプ７はハウジング６の内筒部６５外
周に嵌着されており、その上面にはロツド貫通孔
７１が形成されている。８はゴム弾性体等からな
る軸封部材で、キヤツプ７に嵌装され、外部から
筒内への異物の混入および筒内から外部への油の
流出を防ぐ。９はバネ弾性体であり、前記ハウジ
ング６の内筒部端面に形成された環状凹部６６と
軸封部材８間に軸封部材８をキヤツプ７側へ押圧
して配されている。そして、ハウジング６の環状
鍔部６３外周面ならびにキヤツプ７外周面を覆つ
て外筒１が嵌装され、該外筒１の端部をカシメて
該ロツドガイド軸受体４が外筒１の端部に装着さ
れる。なお、本願考案においては外筒１端部がキ
ヤツプ７にカシメて固定した態様を示したが、外
筒１端部はキヤツプ７に溶接あるいは螺合によつ
て固定することもできる。 The rod guide bearing body of the present invention consists of an integrally molded product of a multi-layer bearing 5 and a synthetic resin housing by injection molding, and when manufacturing it, injection molding is performed to cover the outer circumferential surface and end backing metal portion of the multi-layer bearing 5. Since the molding pressure of the synthetic resin can be kept constant, by controlling only the inner diameter dimension of the multilayer bearing 5, it is possible to obtain a rod guide bearing body with a bearing inner circumferential surface with good dimensional accuracy, and its production is easy. While the work is easy, in the conventional method of press-fitting a multilayer bearing into a sintered metal housing, even if the inner diameter of the multilayer bearing is formed accurately, it is affected by the dimensional accuracy of the hole diameter of the housing. When manufacturing such bearings, it is necessary to control the dimensional accuracy of the hole diameters of the inner and outer diameter housings of the multilayer bearing, which makes the manufacturing work extremely complicated. In the thus formed rod guide bearing body 4, the piston rod 3 is fitted into the inner surface of the multilayer bearing 5, and the small cylindrical portion 61 is fitted into the inner surface of the upper end of the inner cylinder 2. At this time, the strength of the abutting part can be increased by embedding a metallic washer in the step part 62 that is connected to the small cylindrical part 61 against which the upper end of the inner cylinder 2 abuts. Reference numeral 7 denotes a metal hollow cap, which is fitted onto the outer periphery of the inner cylindrical portion 65 of the housing 6, and has a rod through hole 71 formed in its upper surface. Reference numeral 8 denotes a shaft sealing member made of rubber elastic material or the like, which is fitted into the cap 7 to prevent foreign matter from entering the cylinder from the outside and oil from flowing out from the cylinder to the outside. Reference numeral 9 denotes a spring elastic body, which is disposed between an annular recess 66 formed on the end face of the inner cylindrical portion of the housing 6 and the shaft sealing member 8 so as to press the shaft sealing member 8 toward the cap 7 side. Then, the outer tube 1 is fitted to cover the outer circumferential surface of the annular flange 63 of the housing 6 and the outer circumferential surface of the cap 7, and the end of the outer tube 1 is caulked, and the rod guide bearing body 4 is attached to the end of the outer tube 1. It will be installed. In the present invention, the end of the outer cylinder 1 is fixed to the cap 7 by caulking, but the end of the outer cylinder 1 can also be fixed to the cap 7 by welding or screwing.
本考案は、シヨツクアブソーバーのピストンロ
ツドを摺動案内するロツドガイド軸受体を複層軸
受と該複層軸受の外周面ならびにその端面裏金部
分を覆つて一体成形した合成樹脂ハウジングとで
構成したもので、ピストンロッドと一定のクリア
ランスをもつて摺動する複層軸受の内径寸法を従
来のハウジングに複層軸受を圧入するものに比べ
て精度よくより容易に製作することができ、ピス
トンロツドを円滑に摺動案内することができるも
のである。 In the present invention, the rod guide bearing body that slides and guides the piston rod of the shock absorber is composed of a multilayer bearing and a synthetic resin housing that is integrally molded to cover the outer peripheral surface of the multilayer bearing and the back metal part of the end surface of the multilayer bearing. The inner diameter of the multi-layer bearing, which slides with a certain clearance with the rod, can be manufactured more precisely and more easily than in conventional housings in which the multi-layer bearing is press-fitted, allowing the piston rod to slide smoothly. It is something that can be done.
また、複層軸受はその端面裏金部分が合成樹脂
ハウジングにより覆われているため該ハウジング
から抜け出すことが防止される。 Further, since the end back metal portion of the multilayer bearing is covered with a synthetic resin housing, it is prevented from slipping out from the housing.
さらに、合成樹脂ハウジングにより従来の焼結
金属製ハウジングに比べて軸受体が軽量化され、
また安価に製造されるなどの効果がもたらされ
る。 Furthermore, the synthetic resin housing makes the bearing body lighter compared to conventional sintered metal housings.
Further, it has the advantage of being manufactured at low cost.
第１図は本願考案のロツドガイド軸受体の使用
態様を示す縦断面図、第２図はロツドガイド軸受
体の平面図、第３図は第２図のＸ−Ｘ縦断面図、
第４図は複層軸受の構成材料を示す断面図であ
る。
１：外筒、２：内筒、３：ピストンロツド、
４：ロツドガイド軸受体、５：複層軸受、６：合
成樹脂ハウジング。
Fig. 1 is a longitudinal cross-sectional view showing how the rod guide bearing body of the present invention is used, Fig. 2 is a plan view of the rod guide bearing body, and Fig. 3 is a longitudinal cross-sectional view taken along line XX in Fig. 2.
FIG. 4 is a sectional view showing the constituent materials of the multilayer bearing. 1: Outer cylinder, 2: Inner cylinder, 3: Piston rod,
4: Rod guide bearing body, 5: Multilayer bearing, 6: Synthetic resin housing.
Claims (1)
ルウイツシユボーン型サスペンシヨンに使用され
る複筒形シヨツクアブソーバーのピストンロツド
を摺動案内し、該シヨツクアブソーバーの外筒上
端に装着されるロツドガイド軸受体において、金
属性の薄板からなる裏金と該裏金の表面に一体に
形成された焼結金属多孔質層と該多孔質層に含浸
被着された耐摩耗性を有する合成樹脂層とからな
り、該合成樹脂層を内側に巻いて円筒状に形成さ
れた複層軸受をもつて摺動案内部が構成され、該
軸受の外周面ならびに端面裏金部分を覆つて一体
に形成された剛性を有する合成樹脂部をもつてハ
ウジングが一体に形成されており、該ハウジング
には、前記シヨツクアブソーバーの内筒内側に嵌
合される小円筒部と該小円筒部と段部をもつて拡
径された環状鍔部と該鍔部と段部をもつて縮径さ
れた円筒部とが形成されており、該環状鍔部およ
び円筒部には、該鍔部をロツド軸線方向に貫通
し、円筒部外面を削剥して円筒部端面に開口する
連通口が形成された複筒形シヨツクアブソーバー
のロツドガイド軸受体。 In the rod guide bearing body that slides and guides the piston rod of a double cylinder shock absorber used in McPherson strut type and double wishbone type vehicle suspensions and is attached to the upper end of the outer cylinder of the shock absorber, a metal A sintered metal porous layer integrally formed on the surface of the back metal, and a wear-resistant synthetic resin layer impregnated and adhered to the porous layer, the synthetic resin layer The sliding guide part is composed of a multi-layer bearing formed into a cylindrical shape by winding it inside, and has a rigid synthetic resin part integrally formed to cover the outer peripheral surface of the bearing and the back metal part of the end surface. A housing is integrally formed with the housing, and the housing includes a small cylindrical portion that fits inside the inner cylinder of the shock absorber, an annular flange whose diameter is enlarged with the small cylindrical portion and a stepped portion, and the housing. A cylindrical portion having a reduced diameter and a flange portion and a stepped portion is formed, and the annular flange portion and the cylindrical portion are formed by penetrating the flange portion in the rod axis direction and scraping off the outer surface of the cylindrical portion. A rod guide bearing body for a dual-tube shock absorber that has a communication port that opens on the end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15549681U JPS5861940U (en) | 1981-10-21 | 1981-10-21 | Rod guide bearing body for double cylinder shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15549681U JPS5861940U (en) | 1981-10-21 | 1981-10-21 | Rod guide bearing body for double cylinder shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5861940U JPS5861940U (en) | 1983-04-26 |
| JPS6221802Y2 true JPS6221802Y2 (en) | 1987-06-03 |
Family
ID=29948074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15549681U Granted JPS5861940U (en) | 1981-10-21 | 1981-10-21 | Rod guide bearing body for double cylinder shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5861940U (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6121439A (en) * | 1984-07-10 | 1986-01-30 | Taiho Kogyo Co Ltd | Shock absorber |
| KR100385484B1 (en) * | 1997-12-11 | 2003-10-22 | 주식회사 만도 | Rod guide of shock absorber |
| WO2015020198A1 (en) * | 2013-08-08 | 2015-02-12 | ヒーハイスト精工株式会社 | Linear-motion bearing with flange attached |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5557718A (en) * | 1978-10-25 | 1980-04-28 | V I V Eng Kk | Manufacturing method of lubricating member |
-
1981
- 1981-10-21 JP JP15549681U patent/JPS5861940U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5557718A (en) * | 1978-10-25 | 1980-04-28 | V I V Eng Kk | Manufacturing method of lubricating member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5861940U (en) | 1983-04-26 |
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