JP6800038B2 - Upper support - Google Patents

Upper support Download PDF

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Publication number
JP6800038B2
JP6800038B2 JP2017028285A JP2017028285A JP6800038B2 JP 6800038 B2 JP6800038 B2 JP 6800038B2 JP 2017028285 A JP2017028285 A JP 2017028285A JP 2017028285 A JP2017028285 A JP 2017028285A JP 6800038 B2 JP6800038 B2 JP 6800038B2
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Prior art keywords
fixing member
main body
rubber elastic
tubular
piston rod
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JP2018132175A (en
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浩幸 松村
浩幸 松村
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Sumitomo Riko Co Ltd
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Sumitomo Riko Co Ltd
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Priority to JP2017028285A priority Critical patent/JP6800038B2/en
Priority to DE102017011347.5A priority patent/DE102017011347A1/en
Publication of JP2018132175A publication Critical patent/JP2018132175A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
    • B60G15/068—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit specially adapted for MacPherson strut-type suspension
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/54—Arrangements for attachment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/128—Damper mount on vehicle body or chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41—Elastic mounts, e.g. bushings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)
  • Vehicle Body Suspensions (AREA)

Description

本発明は、サスペンション機構を構成するショックアブソーバのピストンロッドを車両ボデーに防振連結するアッパサポートに関するものである。 The present invention relates to an upper support for vibration-proof connection of a piston rod of a shock absorber constituting a suspension mechanism to a vehicle body.

従来から、サスペンション機構を構成するショックアブソーバのピストンロッドと車両ボデーとを防振連結するアッパサポートが知られている。アッパサポートは、例えば特許第４９２２９７５号公報（特許文献１）に示されているように、ピストンロッドの上端部分を構成するボルト部に外挿された状態で固定されるベース部材を備えていると共に、ベース部材に本体ゴム部が固着された構造を有している。本体ゴム部には上側へ向けて収縮する本体ゴム部の外周面が設けられており、車体の車体側取付部が本体ゴム部の外周面に載せられることによって、本体ゴム部が車体荷重によってベース部材と車体側取付部の間で圧縮された状態で、アッパサポートがピストンロッドと車体の間に介装されるようになっている。 Conventionally, an upper support for vibration-proof connection between a piston rod of a shock absorber constituting a suspension mechanism and a vehicle body has been known. As shown in Japanese Patent No. 4922975 (Patent Document 1), for example, the upper support includes a base member that is extrapolated and fixed to a bolt portion constituting the upper end portion of the piston rod. , It has a structure in which the rubber part of the main body is fixed to the base member. The main body rubber portion is provided with an outer peripheral surface of the main body rubber portion that contracts upward, and the vehicle body side mounting portion of the vehicle body is placed on the outer peripheral surface of the main body rubber portion, so that the main body rubber portion is based on the vehicle body load. The upper support is interposed between the piston rod and the vehicle body in a compressed state between the member and the vehicle body side mounting portion.

ところで、特許文献１に記載のアッパサポートでは、ピストンロッドのボルト部に外挿状態で配されたベース部材が、内周端部をピストンロッドの上端面と第一ナットの間で挟持されることで、ピストンロッドに固定されるようになっている。 By the way, in the upper support described in Patent Document 1, the base member arranged externally to the bolt portion of the piston rod is sandwiched between the upper end surface of the piston rod and the first nut at the inner peripheral end portion. So, it is fixed to the piston rod.

ところが、特許文献１のような構造では、ベース部材の内周端部がピストンロッドに固定される構造であることから、ベース部材の内周端部を軸方向で突出させることができない。それ故、軸直角方向においてベース部材と車体側取付部との間で本体ゴム部の圧縮ばね成分を確保し難く、軸直角方向のばねを硬く設定し難いことから、車両の走行性能などについてより大きなチューニング自由度をより大きく求められる場合もあった。 However, in the structure as in Patent Document 1, since the inner peripheral end portion of the base member is fixed to the piston rod, the inner peripheral end portion of the base member cannot be projected in the axial direction. Therefore, it is difficult to secure the compression spring component of the main body rubber part between the base member and the vehicle body side mounting part in the direction perpendicular to the axis, and it is difficult to set the spring in the direction perpendicular to the axis hard. In some cases, a greater degree of freedom in tuning was required.

特許第４９２２９７５号公報Japanese Patent No. 4922975

本発明は、上述の事情を背景に為されたものであって、その解決課題は、本体ゴム弾性体のばね特性のチューニング自由度を大きく得ることができる、新規な構造のアッパサポートを提供することにある。 The present invention has been made in the background of the above circumstances, and the problem to be solved thereof is to provide an upper support having a novel structure capable of obtaining a large degree of freedom in tuning the spring characteristics of the rubber elastic body of the main body. There is.

以下、このような課題を解決するために為された本発明の態様を記載する。なお、以下に記載の各態様において採用される構成要素は、可能な限り任意の組み合わせで採用可能である。 Hereinafter, aspects of the present invention made to solve such problems will be described. The components adopted in each of the following aspects can be adopted in any combination as much as possible.

すなわち、本発明の第一の態様は、ショックアブソーバを構成するピストンロッドの上端部分に外挿された状態で、軸直角方向に広がる平板形状の内周端部が該ピストンロッドへ締付固定されるインナ部材を備えていると共に、該インナ部材に固着された本体ゴム弾性体が上側へ向けて小径となるテーパ支持面を備えており、該本体ゴム弾性体の該テーパ支持面に車両ボデーのボデー側取付部が載せられることにより、該本体ゴム弾性体が該車両ボデーの分担支持荷重によって該インナ部材と該ボデー側取付部の間で圧縮された状態で、該ピストンロッドと該車両ボデーの間に介装されるアッパサポートにおいて、前記ピストンロッドの周囲を離れた位置で取り囲むように外挿状態で配される筒状部を備えた固着部材が別部品として前記インナ部材に設けられており、該固着部材の該筒状部が前記本体ゴム弾性体の内周部分に固着されていることを、特徴とする。 That is, in the first aspect of the present invention, a flat plate-shaped inner peripheral end portion extending in the direction perpendicular to the axis is tightened and fixed to the piston rod in a state of being externally inserted to the upper end portion of the piston rod constituting the shock absorber. In addition to being provided with an inner member, the main body rubber elastic body fixed to the inner member is provided with a tapered support surface whose diameter becomes smaller toward the upper side, and the tapered support surface of the main body rubber elastic body is provided with a vehicle body. By mounting the body side mounting portion, the piston rod and the vehicle body are compressed in a state where the rubber elastic body of the main body is compressed between the inner member and the body side mounting portion by the shared supporting load of the vehicle body. In the upper support interposed between the piston rods, the inner member is provided with a fixing member having a tubular portion arranged externally so as to surround the piston rod at a distant position as a separate part. The tubular portion of the fixing member is fixed to the inner peripheral portion of the rubber elastic body of the main body.

このような第一の態様に従う構造とされたアッパサポートによれば、本体ゴム弾性体の外周部分に取り付けられるボデー側取付部と、本体ゴム弾性体の内周部分に固着される固着部材の筒状部との軸直角方向間に、本体ゴム弾性体が配されていることによって、軸直角方向において本体ゴム弾性体の圧縮ばね成分を大きく得ることができる。これにより、インナ部材の内周端部がピストンロッドに固定される構造とされて、インナ部材とボデー側取付部との間で本体ゴム弾性体の軸直角方向の圧縮ばねを得難い場合であっても、軸直角方向のばね特性をより大きな自由度で設定することが可能となって、目的とする防振性能や車両の操縦安定性などを有利に実現することができる。 According to the upper support having a structure according to the first aspect, the body side mounting portion attached to the outer peripheral portion of the main body rubber elastic body and the cylinder of the fixing member fixed to the inner peripheral portion of the main body rubber elastic body. By arranging the main body rubber elastic body in the direction perpendicular to the axis with the shape portion, a large compression spring component of the main body rubber elastic body can be obtained in the direction perpendicular to the axis. As a result, the inner peripheral end of the inner member is fixed to the piston rod, and it is difficult to obtain a compression spring in the direction perpendicular to the axis of the rubber elastic body of the main body between the inner member and the body side mounting portion. However, the spring characteristics in the direction perpendicular to the axis can be set with a greater degree of freedom, and the desired vibration isolation performance and steering stability of the vehicle can be advantageously realized.

本発明の第二の態様は、第一の態様に記載されたアッパサポートにおいて、前記本体ゴム弾性体の内周部分には前記インナ部材から前記ピストンロッドの先端側へ向けて立ち上がる筒状シール部が設けられており、該筒状シール部が前記固着部材の前記筒状部に固着されていると共に、該固着部材の該筒状部が、前記ピストンロッドに取り付けられて前記ボデー側取付部との当接によってリバウンドストッパを構成するストッパ部材に対して、該本体ゴム弾性体の該筒状シール部を介して押し付けられて、それら筒状部とストッパ部材の間がシールされているものである。 A second aspect of the present invention is the tubular seal portion that rises from the inner member toward the tip end side of the piston rod on the inner peripheral portion of the main body rubber elastic body in the upper support described in the first aspect. Is provided, the tubular seal portion is fixed to the tubular portion of the fixing member, and the tubular portion of the fixing member is attached to the piston rod to and the body side attachment portion. The stopper member constituting the rebound stopper is pressed against the stopper member constituting the rebound stopper via the tubular seal portion of the rubber elastic body of the main body, and the tubular portion and the stopper member are sealed. ..

第二の態様によれば、筒状シール部がストッパ部材に押し付けられてシールが構成されることにより、水などの異物が筒状部とストッパ部材の間を通じて入り込んでピストンロッドなどに付着するのを防ぐことができて、耐久性の向上などが図られる。更に、筒状シール部には固着部材の筒状部が固着されており、筒状シール部の弾性変形量が筒状部によって制限されていることから、筒状シール部の弾性変形によるシール性能の低下が回避されて、高い信頼性を備えたシール構造を実現することができる。 According to the second aspect, the tubular seal portion is pressed against the stopper member to form the seal, so that foreign matter such as water enters between the tubular portion and the stopper member and adheres to the piston rod or the like. Can be prevented and durability can be improved. Further, since the tubular portion of the fixing member is fixed to the tubular seal portion and the amount of elastic deformation of the tubular seal portion is limited by the tubular portion, the sealing performance due to the elastic deformation of the tubular seal portion. It is possible to realize a highly reliable seal structure by avoiding a decrease in the seal structure.

本発明の第三の態様は、第一又は第二の態様に記載されたアッパサポートにおいて、前記固着部材が有底筒状とされており、該固着部材の周壁部によって前記筒状部が構成されていると共に、該固着部材の底壁部が前記インナ部材に重ね合わされた状態で該インナ部材とともに前記ピストンロッドに固定されているものである。 In the third aspect of the present invention, in the upper support described in the first or second aspect, the fixing member has a bottomed tubular shape, and the peripheral wall portion of the fixing member constitutes the tubular portion. In addition, the bottom wall portion of the fixing member is fixed to the piston rod together with the inner member in a state of being overlapped with the inner member.

第三の態様によれば、固着部材が有底筒状とされており、固着部材の底壁部がインナ部材とともにピストンロッドに固定されることから、固着部材をピストンロッドに容易に取り付けることができる。 According to the third aspect, since the fixing member has a bottomed tubular shape and the bottom wall portion of the fixing member is fixed to the piston rod together with the inner member, the fixing member can be easily attached to the piston rod. it can.

本発明の第四の態様は、第一又は第二の態様に記載されたアッパサポートにおいて、前記固着部材が筒状とされており、該固着部材の下端部が前記インナ部材に形成された溝部に嵌合されて該インナ部材に固定されていると共に、該固着部材における該溝部から突出する部分が前記筒状部とされているものである。 In the fourth aspect of the present invention, in the upper support described in the first or second aspect, the fixing member has a tubular shape, and the lower end portion of the fixing member is formed in the inner member. It is fitted to the inner member and fixed to the inner member, and the portion of the fixing member protruding from the groove portion is the tubular portion.

第四の態様によれば、固着部材がインナ部材に予め固定されることから、それらインナ部材と固着部材を一体的に取り扱うことができて、例えば、本体ゴム弾性体の加硫成形用金型にセットする際に作業が容易になり得る。しかも、インナ部材と固着部材は、固着部材の下端部をインナ部材の溝部に嵌め入れることで、簡単に固定することができる。 According to the fourth aspect, since the fixing member is fixed to the inner member in advance, the inner member and the fixing member can be handled integrally, for example, a mold for vulcanization molding of a rubber elastic body of the main body. The work can be easier when setting to. Moreover, the inner member and the fixing member can be easily fixed by fitting the lower end portion of the fixing member into the groove portion of the inner member.

本発明の第五の態様は、第一〜第四の何れか１つの態様に記載されたアッパサポートにおいて、前記本体ゴム弾性体の前記テーパ支持面に沿って広がるアウタ部材が該本体ゴム弾性体に固着されており、前記インナ部材および前記固着部材の前記筒状部が該アウタ部材と該本体ゴム弾性体によって弾性連結されているものである。 In the fifth aspect of the present invention, in the upper support described in any one of the first to fourth aspects, the outer member extending along the tapered support surface of the main body rubber elastic body is the main body rubber elastic body. The inner member and the tubular portion of the fixing member are elastically connected to the outer member by the rubber elastic body of the main body.

第五の態様によれば、インナ部材および固着部材の筒状部とアウタ部材との間に本体ゴム弾性体が配されていることにより、ボデー側取付部の形状や配置によるばね特性への影響が低減されて、本体ゴム弾性体の軸直角方向の圧縮ばね成分を安定して大きく得ることができる。また、本発明の第六の態様は、第一〜第五の何れか１つの態様に記載されたアッパサポートにおいて、前記固着部材が前記インナ部材よりも薄肉とされているものである。 According to the fifth aspect, since the main body rubber elastic body is arranged between the tubular portion of the inner member and the fixing member and the outer member, the influence on the spring characteristics due to the shape and arrangement of the body side mounting portion. Is reduced, and a large compression spring component in the direction perpendicular to the axis of the rubber elastic body of the main body can be stably obtained. Further, in the sixth aspect of the present invention, in the upper support described in any one of the first to fifth aspects, the fixing member is made thinner than the inner member.

本発明によれば、ピストンロッドの周囲を離れた位置で取り囲むように外挿状態で配される筒状部を備えた固着部材がインナ部材に設けられており、固着部材の筒状部が本体ゴム弾性体の内周部分に固着されていることから、ボデー側取付部と固着部材の筒状部との軸直角方向間に本体ゴム弾性体が配されている。これにより、インナ部材の内周端部がピストンロッドに固定される構造であっても、軸直角方向において本体ゴム弾性体の圧縮ばね成分を大きく得易くなることから、軸直角方向のばね特性をより大きな自由度で設定することが可能となって、目的とする防振性能や車両の操縦安定性などを有利に実現することができる。 According to the present invention, the inner member is provided with a fixing member having a tubular portion arranged in an extrapolated state so as to surround the circumference of the piston rod at a distant position, and the tubular portion of the fixing member is the main body. Since it is fixed to the inner peripheral portion of the rubber elastic body, the main body rubber elastic body is arranged between the body side mounting portion and the tubular portion of the fixing member in the direction perpendicular to the axis. As a result, even if the inner peripheral end of the inner member is fixed to the piston rod, it is easy to obtain a large compression spring component of the rubber elastic body in the direction perpendicular to the axis, so that the spring characteristics in the direction perpendicular to the axis can be improved. It is possible to set with a larger degree of freedom, and it is possible to advantageously realize the desired vibration isolation performance and steering stability of the vehicle.

本発明の第一の実施形態としてのアッパサポートを示す斜視図。The perspective view which shows the upper support as the 1st Embodiment of this invention. 図１に示すアッパサポートの断面図。FIG. 3 is a cross-sectional view of the upper support shown in FIG. 図１に示すアッパサポートを車両への装着状態で示す断面図。The cross-sectional view which shows the upper support shown in FIG. 本発明の第二の実施形態としてのアッパサポートを示す断面図。The cross-sectional view which shows the upper support as the 2nd Embodiment of this invention.

以下、本発明の実施形態について、図面を参照しつつ説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１，２には、本発明の第一の実施形態としてのアッパサポート１０が示されている。アッパサポート１０は、インナ部材１２とアウタ部材１４が本体ゴム弾性体１６によって弾性連結された構造を有している。以下の説明において、上下方向とは、原則として、図２中の上下方向を言う。 FIGS. 1 and 2 show the upper support 10 as the first embodiment of the present invention. The upper support 10 has a structure in which the inner member 12 and the outer member 14 are elastically connected by a main body rubber elastic body 16. In the following description, the vertical direction means, in principle, the vertical direction in FIG.

より詳細には、インナ部材１２は、金属などで形成された高剛性の部材であって、段付きの略円環板形状とされており、内周部分が外周部分よりも上側に位置していると共に、径方向の中央部分には上下に貫通するロッド挿通孔１８が形成されている。なお、インナ部材１２としては、板金具のプレス加工品であるプレス金具が好適に用いられる。 More specifically, the inner member 12 is a highly rigid member made of metal or the like and has a stepped substantially annular plate shape, and the inner peripheral portion is located above the outer peripheral portion. At the same time, a rod insertion hole 18 penetrating vertically is formed in the central portion in the radial direction. As the inner member 12, a pressed metal fitting, which is a pressed product of a plate metal fitting, is preferably used.

アウタ部材１４は、金属などで形成された高剛性の部材であって、全体として略円筒形状を有していると共に、上方へ向けて次第に収縮して小径となるテーパ筒形状とされている。また、本実施形態のアウタ部材１４は、上端部が内周側へ湾曲して軸直角方向で広がっている。なお、アウタ部材１４としては、インナ部材１２と同様に、板金具のプレス加工品であるプレス金具が好適に用いられる。 The outer member 14 is a high-rigidity member made of metal or the like, and has a substantially cylindrical shape as a whole, and has a tapered tubular shape that gradually contracts upward to have a smaller diameter. Further, in the outer member 14 of the present embodiment, the upper end portion thereof is curved toward the inner peripheral side and spreads in the direction perpendicular to the axis. As the outer member 14, similarly to the inner member 12, a pressed metal fitting, which is a pressed product of a plate metal fitting, is preferably used.

そして、インナ部材１２に対して上側へ離れてアウタ部材１４が配設されており、それらインナ部材１２とアウタ部材１４が本体ゴム弾性体１６によって相互に弾性連結されている。本体ゴム弾性体１６は、全体として上方に向けて次第に大径となるテーパ筒状の弾性連結部２０を備えており、小径とされた弾性連結部２０の下端部がインナ部材１２に固着されていると共に、大径とされた弾性連結部２０の上端部がアウタ部材１４に固着されている。本実施形態の本体ゴム弾性体１６は、インナ部材１２とアウタ部材１４を備える一体加硫成形品として形成されている。 The outer member 14 is arranged on the inner member 12 so as to be separated from the upper side, and the inner member 12 and the outer member 14 are elastically connected to each other by the main body rubber elastic body 16. The main body rubber elastic body 16 is provided with a tapered tubular elastic connecting portion 20 whose diameter gradually increases upward as a whole, and the lower end portion of the elastic connecting portion 20 having a small diameter is fixed to the inner member 12. At the same time, the upper end portion of the elastic connecting portion 20 having a large diameter is fixed to the outer member 14. The main body rubber elastic body 16 of the present embodiment is formed as an integrally vulcanized molded product including an inner member 12 and an outer member 14.

さらに、インナ部材１２の外周部分の表面が本体ゴム弾性体１６によって覆われており、インナ部材１２の外周部分の下面から下方へ向けて突出するカバーゴム２２が、本体ゴム弾性体１６に一体形成されている。カバーゴム２２は、下方に向けて径方向で幅狭となる略一定の断面形状で全周に亘って連続的に延びており、後述するピストンロッド４０の周囲を取り囲んで異物の侵入を防止し得るようにされている。また、インナ部材１２の内周端部は、本体ゴム弾性体１６から突出しており、本体ゴム弾性体１６から露出している。 Further, the surface of the outer peripheral portion of the inner member 12 is covered with the main body rubber elastic body 16, and the cover rubber 22 protruding downward from the lower surface of the outer peripheral portion of the inner member 12 is integrally formed with the main body rubber elastic body 16. Has been done. The cover rubber 22 has a substantially constant cross-sectional shape that narrows in the radial direction downward and extends continuously over the entire circumference, and surrounds the periphery of the piston rod 40, which will be described later, to prevent foreign matter from entering. It is supposed to get. Further, the inner peripheral end portion of the inner member 12 protrudes from the main body rubber elastic body 16 and is exposed from the main body rubber elastic body 16.

更にまた、インナ部材１２の外周部分を覆うゴムは、弾性連結部２０に対して内周端部で一体的につながっていると共に、外周部分で下方に離れて位置しており、本体ゴム弾性体１６における弾性連結部２０の下側には、外周面に開口して全周に亘って連続する第一の調節溝２４が形成されている。なお、インナ部材１２は、本体ゴム弾性体１６の成形時に本体ゴム弾性体１６の加硫成形用金型によって支持されることから、複数箇所で本体ゴム弾性体１６から部分的に露出している。 Furthermore, the rubber covering the outer peripheral portion of the inner member 12 is integrally connected to the elastic connecting portion 20 at the inner peripheral end portion, and is positioned downward at the outer peripheral portion, so that the main body rubber elastic body On the lower side of the elastic connecting portion 20 in No. 16, a first adjusting groove 24 that opens on the outer peripheral surface and is continuous over the entire circumference is formed. Since the inner member 12 is supported by the vulcanization molding die of the main body rubber elastic body 16 at the time of molding the main body rubber elastic body 16, it is partially exposed from the main body rubber elastic body 16 at a plurality of places. ..

更にまた、アウタ部材１４の外周面が本体ゴム弾性体１６によって覆われており、アウタ部材１４が本体ゴム弾性体１６に対して埋設状態で固着されている。そして、本体ゴム弾性体１６は、上側へ向けて次第に小径となるテーパ支持面２６を備えており、アウタ部材１４の外周面に沿って広がっている。なお、アウタ部材１４は、本体ゴム弾性体１６の成形時に本体ゴム弾性体１６の加硫成形用金型によって支持されることから、複数箇所で本体ゴム弾性体１６から部分的に露出している。 Furthermore, the outer peripheral surface of the outer member 14 is covered with the main body rubber elastic body 16, and the outer member 14 is fixed to the main body rubber elastic body 16 in a buried state. The main body rubber elastic body 16 is provided with a tapered support surface 26 whose diameter gradually decreases toward the upper side, and extends along the outer peripheral surface of the outer member 14. Since the outer member 14 is supported by the vulcanization molding die of the main body rubber elastic body 16 at the time of molding the main body rubber elastic body 16, it is partially exposed from the main body rubber elastic body 16 at a plurality of places. ..

更にまた、本体ゴム弾性体１６によって弾性連結されたインナ部材１２とアウタ部材１４は、軸方向に離れた位置に配されており、軸直角方向の投影において重なり合っていない。 Furthermore, the inner member 12 and the outer member 14 elastically connected by the main body rubber elastic body 16 are arranged at positions separated in the axial direction, and do not overlap in the projection in the direction perpendicular to the axis.

また、本体ゴム弾性体１６の内周端部には、筒状シール部２８が一体形成されている。筒状シール部２８は、上下に延びる略円筒形状とされており、インナ部材１２の内周端よりも外周に位置して、インナ部材１２から後述するピストンロッド４０の先端側である上側に向けて立ち上がるように設けられている。この筒状シール部２８は、下部が弾性連結部２０と一体的につながっていると共に、上部が弾性連結部２０よりも内周側に離れて位置しており、弾性連結部２０と筒状シール部２８の上部との径方向間には、全周に亘って連続する溝状の第二の調節溝３０が上方に向かって開口して形成されている。 Further, a tubular seal portion 28 is integrally formed at the inner peripheral end portion of the main body rubber elastic body 16. The tubular seal portion 28 has a substantially cylindrical shape extending vertically, is located on the outer periphery of the inner peripheral end of the inner member 12, and is directed from the inner member 12 toward the upper side, which is the tip end side of the piston rod 40 described later. It is provided so that it can stand up. The lower portion of the tubular seal portion 28 is integrally connected to the elastic connecting portion 20, and the upper portion is located away from the elastic connecting portion 20 on the inner peripheral side, so that the elastic connecting portion 20 and the tubular seal portion 28 are sealed. A second groove-shaped adjusting groove 30 that is continuous over the entire circumference is formed so as to open upward in the radial direction with the upper portion of the portion 28.

本体ゴム弾性体１６の筒状シール部２８には、固着部材３２が固着されている。固着部材３２は、金属などで形成された硬質の部材であって、略有底円筒形状を有しており、周壁部が略円筒形状の筒状部３４とされていると共に、底壁部の径方向中央部分には上下に貫通するロッド挿通孔３６が形成されている。なお、固着部材３２の筒状部３４は、本体ゴム弾性体１６の筒状シール部２８に対して軸方向寸法が小さくされており、筒状シール部２８に対して、上面から露出することなく、筒状シール部２８の径方向（厚さ方向）の中間部分に埋設状態で固着されている。筒状部３４のインナ部材１２から上方への突出高さは、第二の調節溝３０の底面（最深部）よりも上方に設定されている。この固着部材３２としては、板金具のプレス加工品であるプレス金具が好適に用いられる。 A fixing member 32 is fixed to the tubular seal portion 28 of the main body rubber elastic body 16. The fixing member 32 is a hard member made of metal or the like and has a substantially bottomed cylindrical shape. The peripheral wall portion is a substantially cylindrical cylindrical portion 34, and the bottom wall portion is formed. A rod insertion hole 36 penetrating vertically is formed in the central portion in the radial direction. The tubular portion 34 of the fixing member 32 has a smaller axial dimension than the tubular seal portion 28 of the rubber elastic body 16 of the main body, and is not exposed from the upper surface with respect to the tubular seal portion 28. , It is fixed in the intermediate portion in the radial direction (thickness direction) of the tubular seal portion 28 in a buried state. The height of the tubular portion 34 protruding upward from the inner member 12 is set above the bottom surface (deepest portion) of the second adjusting groove 30. As the fixing member 32, a pressed metal fitting, which is a pressed product of a plate metal fitting, is preferably used.

そして、固着部材３２は、底壁部がインナ部材１２の上面に重ね合わされた状態で配されて、筒状部３４が本体ゴム弾性体１６の筒状シール部２８に加硫接着されており、インナ部材１２と固着部材３２の筒状部３４が本体ゴム弾性体１６によってアウタ部材１４と弾性連結されている。また、固着部材３２の筒状部３４は、アウタ部材１４の下部に対して軸直角方向の投影において重なり合う位置に配置されている。また、固着部材３２の底壁部は、インナ部材１２の上面に非固着で重ね合わされて、本体ゴム弾性体１６によって連結されていても良いが、予め溶接などの手段で固定されて、本体ゴム弾性体１６の成形用金型に対して一体的にセットできるようにしても良い。 The fixing member 32 is arranged in a state where the bottom wall portion is overlapped on the upper surface of the inner member 12, and the tubular portion 34 is vulcanized and adhered to the tubular seal portion 28 of the main body rubber elastic body 16. The tubular portion 34 of the inner member 12 and the fixing member 32 is elastically connected to the outer member 14 by the main body rubber elastic body 16. Further, the tubular portion 34 of the fixing member 32 is arranged at a position where it overlaps with the lower portion of the outer member 14 in the projection in the direction perpendicular to the axis. Further, the bottom wall portion of the fixing member 32 may be non-fixed and overlapped on the upper surface of the inner member 12 and connected by the main body rubber elastic body 16, but is fixed in advance by means such as welding and the main body rubber. The elastic body 16 may be integrally set with the molding die.

このように、アウタ部材１４と固着部材３２の筒状部３４は、本体ゴム弾性体１６によって弾性連結されていると共に、アウタ部材１４の下部と固着部材３２の筒状部３４がオーバーラップして配置されている。これにより、本実施形態の本体ゴム弾性体１６は、軸直角方向において、アウタ部材１４と固着部材３２の筒状部３４との間で圧縮ばね成分を得易くなっていることから、軸直角方向のばねをより硬く設定することが可能とされており、本体ゴム弾性体１６のばね特性のチューニング自由度がより大きく確保されている。 In this way, the outer member 14 and the tubular portion 34 of the fixing member 32 are elastically connected by the main body rubber elastic body 16, and the lower portion of the outer member 14 and the tubular portion 34 of the fixing member 32 overlap each other. Have been placed. As a result, the main body rubber elastic body 16 of the present embodiment can easily obtain a compression spring component between the outer member 14 and the tubular portion 34 of the fixing member 32 in the direction perpendicular to the axis. It is possible to set the spring of the main body harder, and a greater degree of freedom in tuning the spring characteristics of the main body rubber elastic body 16 is secured.

かくの如き構造とされたアッパサポート１０は、図３に示すように、車両のショックアブソーバ３８のピストンロッド４０と車両ボデー４２の間に介装される。ピストンロッド４０は、段差面４４を挟んで上側が下側よりも小径で外周面にねじ山を形成されたボルト部４６とされている。 As shown in FIG. 3, the upper support 10 having such a structure is interposed between the piston rod 40 of the shock absorber 38 of the vehicle and the vehicle body 42. The piston rod 40 is a bolt portion 46 having a stepped surface 44 on the upper side having a smaller diameter than the lower side and having a thread formed on the outer peripheral surface.

すなわち、ピストンロッド４０の上端部分を構成するボルト部４６が、アッパサポート１０におけるインナ部材１２のロッド挿通孔１８と固着部材３２のロッド挿通孔３６に挿通されて、上下に重ね合わされたインナ部材１２および固着部材３２の底壁部が、ボルト部４６に螺着される第一のナット４８とピストンロッド４０の段差面４４との間で上下に挟持される。なお、第一のナット４８とピストンロッド４０の段差面４４との間で挟持されるインナ部材１２の内周端部と固着部材３２の底壁部の内周端部は、何れも軸直角方向に広がる平板形状とされていると共に、何れも本体ゴム弾性体１６から突出して、ピストンロッド４０に対してゴムを介することなく直接的に取り付けられている。また、第一のナット４８は、固着部材３２の筒状部３４の内周側に配されている。 That is, the bolt portion 46 forming the upper end portion of the piston rod 40 is inserted into the rod insertion hole 18 of the inner member 12 and the rod insertion hole 36 of the fixing member 32 in the upper support 10, and the inner member 12 is vertically overlapped. The bottom wall portion of the fixing member 32 is vertically sandwiched between the first nut 48 screwed to the bolt portion 46 and the stepped surface 44 of the piston rod 40. The inner peripheral end of the inner member 12 sandwiched between the first nut 48 and the stepped surface 44 of the piston rod 40 and the inner peripheral end of the bottom wall of the fixing member 32 are both in the direction perpendicular to the axis. In addition to having a flat plate shape that spreads out, each of them protrudes from the main body rubber elastic body 16 and is directly attached to the piston rod 40 without using rubber. Further, the first nut 48 is arranged on the inner peripheral side of the tubular portion 34 of the fixing member 32.

これにより、インナ部材１２と固着部材３２がピストンロッド４０のボルト部４６に対して外挿状態で固定されるようになっている。かくの如き固着部材３２のピストンロッド４０への装着状態において、固着部材３２の筒状部３４が、ピストンロッド４０に対して外周側に離れて配置されて、ピストンロッド４０を取り囲むように外挿状態で配設されている。なお、インナ部材１２の下面には、ベアリング４９がピストンロッド４０に外嵌された状態で取り付けられており、ショックアブソーバ３８に対して外挿状態で配されるコイルスプリング５０の上端部を支持するスプリングシート５１が、ベアリング４９を介してインナ部材１２およびピストンロッド４０に支持されている。 As a result, the inner member 12 and the fixing member 32 are fixed to the bolt portion 46 of the piston rod 40 in an extrapolated state. In the mounted state of the fixing member 32 on the piston rod 40 as described above, the tubular portion 34 of the fixing member 32 is arranged apart from the piston rod 40 on the outer peripheral side and extrapolated so as to surround the piston rod 40. It is arranged in a state. A bearing 49 is attached to the lower surface of the inner member 12 in a state of being externally fitted to the piston rod 40, and supports an upper end portion of a coil spring 50 arranged in an extrapolated state with respect to the shock absorber 38. The spring seat 51 is supported by the inner member 12 and the piston rod 40 via the bearing 49.

また、本体ゴム弾性体１６のテーパ支持面２６には、車両ボデー４２のボデー側取付部５２が上側から載せられている。ボデー側取付部５２は、テーパ支持面２６の形状に対応するテーパ形状を有していると共に、上下に貫通する貫通孔５４を備えている。そして、ボデー側取付部５２が本体ゴム弾性体１６のテーパ支持面２６に対して非固着で重ね合わされると共に、ピストンロッド４０のボルト部４６が貫通孔５４に対する挿通状態でボデー側取付部５２よりも上側に突出している。 Further, the body side mounting portion 52 of the vehicle body 42 is mounted on the tapered support surface 26 of the main body rubber elastic body 16 from above. The body side mounting portion 52 has a tapered shape corresponding to the shape of the tapered support surface 26, and is provided with a through hole 54 penetrating vertically. Then, the body side mounting portion 52 is overlapped with the tapered support surface 26 of the main body rubber elastic body 16 without being fixed, and the bolt portion 46 of the piston rod 40 is inserted from the body side mounting portion 52 in the through hole 54. Also protrudes upward.

なお、図３には、ピストンロッド４０と車両ボデー４２の間に介装されたアッパサポート１０に対して、車両ボデー４２の分担支持荷重が入力されていない状態が図示されているが、車両への装着状態では、インナ部材１２とアウタ部材１４の間に車両ボデー４２の分担支持荷重が入力されることで、本体ゴム弾性体１６が弾性的に圧縮変形せしめられて、インナ部材１２とアウタ部材１４が上下方向で接近せしめられる。 Note that FIG. 3 shows a state in which the shared support load of the vehicle body 42 is not input to the upper support 10 interposed between the piston rod 40 and the vehicle body 42, but to the vehicle. In the mounted state, the shared supporting load of the vehicle body 42 is input between the inner member 12 and the outer member 14, so that the rubber elastic body 16 of the main body is elastically compressed and deformed, and the inner member 12 and the outer member 12 are attached. 14 is brought closer in the vertical direction.

さらに、ピストンロッド４０のボルト部４６には、ストッパ部材５６が取り付けられる。ストッパ部材５６は、カップ金具５８の上端部において外周へ広がるフランジ部６０に対して、ストッパゴム６２が固着された構造を備えている。なお、ストッパ部材５６のカップ金具５８は、好適には、板金具のプレス加工品であるプレス金具によって形成される。 Further, a stopper member 56 is attached to the bolt portion 46 of the piston rod 40. The stopper member 56 has a structure in which the stopper rubber 62 is fixed to the flange portion 60 that extends to the outer periphery at the upper end portion of the cup metal fitting 58. The cup metal fitting 58 of the stopper member 56 is preferably formed by a pressed metal fitting which is a pressed product of a plate metal fitting.

そして、ストッパ部材５６は、カップ金具５８の底壁部を貫通するロッド挿通孔６４にピストンロッド４０のボルト部４６が挿通された状態で、カップ金具５８がボルト部４６に螺着される第二のナット６６によってピストンロッド４０に固定されることにより、ピストンロッド４０に対してインナ部材１２および固着部材３２よりも先端側で取り付けられる。このストッパ部材５６は、フランジ部６０がボデー側取付部５２にストッパゴム６２を介して当接することにより、本体ゴム弾性体１６の弾性連結部２０の上下方向における引張変形量を制限するリバウンドストッパ６８を構成するようになっている。なお、ストッパ部材５６におけるカップ金具５８の底壁部は、第一のナット４８の上面に重ね合わされて、第一のナット４８と第二のナット６６の間で挟持されることによって、上下方向で位置決めされている。 Then, in the stopper member 56, the cup fitting 58 is screwed into the bolt portion 46 in a state where the bolt portion 46 of the piston rod 40 is inserted into the rod insertion hole 64 penetrating the bottom wall portion of the cup fitting 58. By being fixed to the piston rod 40 by the nut 66 of the above, the piston rod 40 is attached to the piston rod 40 on the tip side of the inner member 12 and the fixing member 32. The stopper member 56 is a rebound stopper 68 that limits the amount of tensile deformation in the vertical direction of the elastic connecting portion 20 of the main body rubber elastic body 16 by contacting the flange portion 60 with the body side mounting portion 52 via the stopper rubber 62. Is designed to be configured. The bottom wall portion of the cup fitting 58 of the stopper member 56 is overlapped with the upper surface of the first nut 48 and is sandwiched between the first nut 48 and the second nut 66 in the vertical direction. It is positioned.

このようにストッパ部材５６がピストンロッド４０に固定された状態において、固着部材３２の筒状部３４とストッパ部材５６が、本体ゴム弾性体１６の筒状シール部２８を介して間接的に当接しており、それら固着部材３２の上端部とストッパ部材５６の下端部との間がシールされている。これにより、インナ部材１２とストッパ部材５６の底壁部との上下間において、ピストンロッド４０が外部から隔てられている。従って、ボデー側取付部５２の貫通孔５４を通じて入り込む水や砂塵などの異物が、ピストンロッド４０に付着するのを防ぐことができて、耐久性の向上などが図られる。 In the state where the stopper member 56 is fixed to the piston rod 40 in this way, the tubular portion 34 of the fixing member 32 and the stopper member 56 indirectly come into contact with each other via the tubular seal portion 28 of the main body rubber elastic body 16. The upper end of the fixing member 32 and the lower end of the stopper member 56 are sealed. As a result, the piston rod 40 is separated from the outside between the upper and lower portions of the inner member 12 and the bottom wall portion of the stopper member 56. Therefore, it is possible to prevent foreign matter such as water and dust entering through the through hole 54 of the body side mounting portion 52 from adhering to the piston rod 40, and the durability can be improved.

特に、筒状部３４を固着されていない筒状シール部２８単体がストッパ部材５６に押し付けられる場合に比して、固着部材３２に固着された筒状シール部２８とストッパ部材５６とが、第二のナット６６の締付けによってより強く密着することから、固着部材３２とストッパ部材５６の間がより高い信頼性でシールされる。筒状部３４の上端開口部は、筒状シール部２８を挟んで、ストッパ部材５６の円板形状の底壁部の外周縁部に対して外周側の斜め下方に対向配置されている。ここにおいて、筒状部３４の上端開口部の対向面は、湾曲断面形状で外周に広がっていると共に、ストッパ部材５６の底壁部の外周縁部の対向面は、湾曲断面形状で上方に立ち上がっている。これにより、筒状シール部２８を挟む対向面が、互いに凸側のＲ面形状とされており、筒状シール部２８における応力や歪の集中が抑えられている。 In particular, the tubular seal portion 28 and the stopper member 56 fixed to the fixing member 32 are different from the case where the tubular seal portion 28 alone to which the tubular portion 34 is not fixed is pressed against the stopper member 56. By tightening the second nut 66, the fixing member 32 and the stopper member 56 are sealed with higher reliability. The upper end opening of the tubular portion 34 is arranged diagonally downward on the outer peripheral side with respect to the outer peripheral edge portion of the disk-shaped bottom wall portion of the stopper member 56 with the tubular seal portion 28 interposed therebetween. Here, the facing surface of the upper end opening of the tubular portion 34 extends to the outer periphery in a curved cross-sectional shape, and the facing surface of the outer peripheral edge portion of the bottom wall portion of the stopper member 56 rises upward in a curved cross-sectional shape. ing. As a result, the facing surfaces that sandwich the tubular seal portion 28 have an R-plane shape that is convex to each other, and the concentration of stress and strain in the tubular seal portion 28 is suppressed.

また、本実施形態に従う構造とされたアッパサポート１０では、固着部材３２の筒状部３４が本体ゴム弾性体１６の筒状シール部２８に固着されていることにより、軸直角方向の圧縮ばね成分をボデー側取付部５２と固着部材３２の筒状部３４の間で大きく得ることができる。その結果、アッパサポート１０によれば、軸直角方向でより硬いばねを設定することが可能となることから、ばね特性のチューニング自由度が大きく確保されて、例えば軸直角方向のばねを硬くすることでより優れた操縦安定性を実現することなども容易になる。 Further, in the upper support 10 having a structure according to the present embodiment, the tubular portion 34 of the fixing member 32 is fixed to the tubular seal portion 28 of the main body rubber elastic body 16, so that the compression spring component in the direction perpendicular to the axis is fixed. Can be obtained largely between the body side mounting portion 52 and the tubular portion 34 of the fixing member 32. As a result, according to the upper support 10, it is possible to set a harder spring in the direction perpendicular to the axis, so that a large degree of freedom in tuning the spring characteristics is secured, and for example, the spring in the direction perpendicular to the axis is hardened. It also makes it easier to achieve better steering stability.

さらに、本実施形態の本体ゴム弾性体１６は、外周面に開口する第一の調節溝２４によって軸方向のばねが調節されていると共に、弾性連結部２０と筒状シール部２８の間に形成された第二の調節溝３０によって軸直角方向のばねが調節されている。従って、第一の調節溝２４と第二の調節溝３０の形状や深さなどを適宜に調節することにより、本体ゴム弾性体１６のばね特性をチューニングすることができる。 Further, the main body rubber elastic body 16 of the present embodiment is formed between the elastic connecting portion 20 and the tubular sealing portion 28 while the spring in the axial direction is adjusted by the first adjusting groove 24 opening on the outer peripheral surface. The spring in the direction perpendicular to the axis is adjusted by the second adjusting groove 30. Therefore, the spring characteristics of the main body rubber elastic body 16 can be tuned by appropriately adjusting the shape and depth of the first adjusting groove 24 and the second adjusting groove 30.

また、本実施形態の固着部材３２は、略有底円筒形状とされており、底壁部の内周端部が第一のナット４８によってインナ部材１２とともにピストンロッド４０に締結されるようになっていることから、固着部材３２のピストンロッド４０への取付けが簡単である。しかも、インナ部材１２と固着部材３２の底壁部が互いに重ね合わされて、ピストンロッド４０の段差面４４と第一のナット４８の間で挟持されることにより、第一のナット４８によってピストンロッド４０に締結される部材の厚さが大きくなって、第一のナット４８の緩みが生じ難くなる。 Further, the fixing member 32 of the present embodiment has a substantially bottomed cylindrical shape, and the inner peripheral end portion of the bottom wall portion is fastened to the piston rod 40 together with the inner member 12 by the first nut 48. Therefore, it is easy to attach the fixing member 32 to the piston rod 40. Moreover, the bottom wall portions of the inner member 12 and the fixing member 32 are overlapped with each other and sandwiched between the stepped surface 44 of the piston rod 40 and the first nut 48, so that the piston rod 40 is held by the first nut 48. The thickness of the member to be fastened to is increased, and the first nut 48 is less likely to loosen.

図４には、本発明の第二の実施形態としてのアッパサポート７０が示されている。以下の説明において、第一の実施形態と実質的に同一の部材および部位については、図中に同一の符号を付すことにより説明を省略する。 FIG. 4 shows an upper support 70 as a second embodiment of the present invention. In the following description, the members and parts that are substantially the same as those in the first embodiment are designated by the same reference numerals in the drawings, and the description thereof will be omitted.

より詳細には、本実施形態のアッパサポート７０は、略円筒形状の固着部材７２を備えている。固着部材７２は、上下に延びる略円筒形状とされており、内径寸法がインナ部材１２のロッド挿通孔１８の内径寸法よりも大きくされている。そして、固着部材７２は、下端部がインナ部材１２の上面に開口する環状の溝部７４に嵌合されることにより、インナ部材１２に固定されている。なお、本実施形態において、固着部材７２の筒状部３４は、インナ部材１２の溝部７４から上方へ突出した部分とされており、固着部材７２の筒状部３４に対して本体ゴム弾性体１６の筒状シール部２８が固着されている。 More specifically, the upper support 70 of the present embodiment includes a substantially cylindrical fixing member 72. The fixing member 72 has a substantially cylindrical shape extending vertically, and the inner diameter dimension is larger than the inner diameter dimension of the rod insertion hole 18 of the inner member 12. The fixing member 72 is fixed to the inner member 12 by being fitted into the annular groove 74 whose lower end portion opens on the upper surface of the inner member 12. In the present embodiment, the tubular portion 34 of the fixing member 72 is a portion protruding upward from the groove portion 74 of the inner member 12, and the main body rubber elastic body 16 with respect to the tubular portion 34 of the fixing member 72. The tubular seal portion 28 of the above is fixed.

このような本実施形態に従う構造とされたアッパサポート７０においても、第一の実施形態のアッパサポート１０と同様に、軸直角方向での圧縮ばね成分を確保し易くなることによるばね特性のチューニング自由度の向上や、インナ部材１２と図示しないストッパ部材との間をより効果的にシールすることによる耐久性の向上などが図られ得る。 Even in the upper support 70 having a structure according to the present embodiment, the spring characteristics can be freely tuned by facilitating the securing of the compression spring component in the direction perpendicular to the axis, as in the upper support 10 of the first embodiment. It is possible to improve the degree of freedom and improve the durability by more effectively sealing between the inner member 12 and the stopper member (not shown).

さらに、本実施形態では、固着部材７２の下端部がインナ部材１２の溝部７４に嵌め入れられることによって、インナ部材１２と固着部材７２が予め相互に固定されている。これにより、例えば本体ゴム弾性体１６の成形用金型にインナ部材１２と固着部材７２をセットする際に、それらインナ部材１２と固着部材７２を一体的に取扱うことが可能であり、金型へのセット作業が簡単になる。しかも、インナ部材１２と固着部材７２が予め固定されていることによって、保管や輸送も簡単になる。加えて、インナ部材１２と固着部材７２は、固着部材７２の下端部を溝部７４へ嵌め入れるという簡単な手段で固定することができる。 Further, in the present embodiment, the inner member 12 and the fixing member 72 are fixed to each other in advance by fitting the lower end portion of the fixing member 72 into the groove portion 74 of the inner member 12. Thereby, for example, when the inner member 12 and the fixing member 72 are set in the molding mold of the main body rubber elastic body 16, the inner member 12 and the fixing member 72 can be integrally handled, and the inner member 12 and the fixing member 72 can be integrally handled. The setting work of is easy. Moreover, since the inner member 12 and the fixing member 72 are fixed in advance, storage and transportation are facilitated. In addition, the inner member 12 and the fixing member 72 can be fixed by a simple means of fitting the lower end portion of the fixing member 72 into the groove portion 74.

以上、本発明の実施形態について詳述してきたが、本発明はその具体的な記載によって限定されない。例えば、互いにオーバーラップして配置されるアウタ部材１４と固着部材３２の筒状部３４とのラップ代や、第一，第二の調節溝２４，３０の深さなどは、目的とするばね特性に応じて適宜に変更され得る。 Although the embodiments of the present invention have been described in detail above, the present invention is not limited by the specific description thereof. For example, the wrapping allowance between the outer member 14 and the tubular portion 34 of the fixing member 32 which are arranged so as to overlap each other, the depth of the first and second adjusting grooves 24 and 30, and the like are the desired spring characteristics. It can be changed as appropriate according to.

また、前記実施形態では、インナ部材１２とアウタ部材１４が本体ゴム弾性体１６によって弾性連結された構造を例示したが、アウタ部材１４は必須ではなく省略され得る。この場合には、ボデー側取付部５２と固着部材３２の筒状部３４との間で、本体ゴム弾性体１６の軸直角方向の圧縮ばね成分を確保することができる。 Further, in the above embodiment, the structure in which the inner member 12 and the outer member 14 are elastically connected by the main body rubber elastic body 16 is illustrated, but the outer member 14 is not essential and may be omitted. In this case, the compression spring component in the direction perpendicular to the axis of the main body rubber elastic body 16 can be secured between the body side mounting portion 52 and the tubular portion 34 of the fixing member 32.

また、前記実施形態では、インナ部材１２および固着部材３２が第一のナット４８によってピストンロッド４０に固定されると共に、ストッパ部材５６が第二のナット６６によってピストンロッド４０に固定される構造を例示したが、それらインナ部材１２と固着部材３２とストッパ部材５６を第二のナット６６によってピストンロッド４０に固定することもできる。即ち、ピストンロッド４０のボルト部４６に対して螺着されずに外挿されるスペーサを第一のナット４８に代えて採用して、インナ部材１２と固着部材３２とスペーサとストッパ部材５６をそれぞれピストンロッド４０のボルト部４６に外挿した状態で、第二のナット６６をボルト部４６に螺着することにより、それらインナ部材１２と固着部材３２とストッパ部材５６を第二のナット６６によってピストンロッド４０に固定できる。 Further, in the above embodiment, the structure in which the inner member 12 and the fixing member 32 are fixed to the piston rod 40 by the first nut 48 and the stopper member 56 is fixed to the piston rod 40 by the second nut 66 is exemplified. However, the inner member 12, the fixing member 32, and the stopper member 56 can be fixed to the piston rod 40 by the second nut 66. That is, a spacer that is externally inserted without being screwed to the bolt portion 46 of the piston rod 40 is adopted instead of the first nut 48, and the inner member 12, the fixing member 32, the spacer, and the stopper member 56 are respectively pistons. By screwing the second nut 66 to the bolt portion 46 in a state of being externally inserted into the bolt portion 46 of the rod 40, the inner member 12, the fixing member 32, and the stopper member 56 are connected to the piston rod by the second nut 66. Can be fixed at 40.

１０，７０：アッパサポート、１２：インナ部材、１４：アウタ部材、１６：本体ゴム弾性体、２６：テーパ支持面、２８：筒状シール部、３２，７２：固着部材、３４：筒状部、３８：ショックアブソーバ、４０：ピストンロッド、４２：車両ボデー、５２：ボデー側取付部、５６：ストッパ部材、６８：リバウンドストッパ、７４：溝部 10,70: Upper support, 12: Inner member, 14: Outer member, 16: Rubber elastic body of main body, 26: Tapered support surface, 28: Cylindrical seal part, 32,72: Fixing member, 34: Cylindrical part, 38: Shock absorber, 40: Piston rod, 42: Vehicle body, 52: Body side mounting part, 56: Stopper member, 68: Rebound stopper, 74: Groove part

Claims (6)

ショックアブソーバを構成するピストンロッドの上端部分に外挿された状態で、軸直角方向に広がる平板形状の内周端部が該ピストンロッドへ締付固定されるインナ部材を備えていると共に、該インナ部材に固着された本体ゴム弾性体が上側へ向けて小径となるテーパ支持面を備えており、該本体ゴム弾性体の該テーパ支持面に車両ボデーのボデー側取付部が載せられることにより、該本体ゴム弾性体が該車両ボデーの分担支持荷重によって該インナ部材と該ボデー側取付部の間で圧縮された状態で、該ピストンロッドと該車両ボデーの間に介装されるアッパサポートにおいて、
前記ピストンロッドの周囲を離れた位置で取り囲むように外挿状態で配される筒状部を備えた固着部材が別部品として前記インナ部材に設けられており、該固着部材の該筒状部が前記本体ゴム弾性体の内周部分に固着されていることを特徴とするアッパサポート。 The inner peripheral end portion having a flat plate shape extending in the direction perpendicular to the axis is provided with an inner member that is fastened and fixed to the piston rod while being externally attached to the upper end portion of the piston rod constituting the shock absorber. The main body rubber elastic body fixed to the member is provided with a tapered support surface whose diameter becomes smaller toward the upper side, and the body side mounting portion of the vehicle body is placed on the tapered support surface of the main body rubber elastic body. In the upper support interposed between the piston rod and the vehicle body in a state where the main body rubber elastic body is compressed between the inner member and the body side mounting portion by the shared supporting load of the vehicle body.
A fixing member having a tubular portion arranged in an extrapolated state so as to surround the periphery of the piston rod at a distant position is provided as a separate component on the inner member, and the tubular portion of the fixing member is provided. An upper support characterized in that it is fixed to the inner peripheral portion of the main body rubber elastic body. 前記本体ゴム弾性体の内周部分には前記インナ部材から前記ピストンロッドの先端側へ向けて立ち上がる筒状シール部が設けられており、該筒状シール部が前記固着部材の前記筒状部に固着されていると共に、
該固着部材の該筒状部が、前記ピストンロッドに取り付けられて前記ボデー側取付部との当接によってリバウンドストッパを構成するストッパ部材に対して、該本体ゴム弾性体の該筒状シール部を介して押し付けられて、それら筒状部とストッパ部材の間がシールされている請求項１に記載のアッパサポート。 The inner peripheral portion of the rubber elastic body of the main body is provided with a tubular seal portion that rises from the inner member toward the tip end side of the piston rod, and the tubular seal portion is formed on the tubular portion of the fixing member. As well as being stuck
The tubular portion of the fixing member is attached to the piston rod, and the tubular seal portion of the rubber elastic body of the main body is attached to the stopper member which constitutes the rebound stopper by contact with the body side attachment portion. The upper support according to claim 1, wherein the upper support is pressed through and sealed between the tubular portion and the stopper member. 前記固着部材が有底筒状とされており、該固着部材の周壁部によって前記筒状部が構成されていると共に、該固着部材の底壁部が前記インナ部材に重ね合わされた状態で該インナ部材とともに前記ピストンロッドに固定されている請求項１又は２に記載のアッパサポート。 The fixing member has a bottomed tubular shape, the tubular portion is formed by the peripheral wall portion of the fixing member, and the bottom wall portion of the fixing member is overlapped with the inner member. The upper support according to claim 1 or 2, which is fixed to the piston rod together with the member. 前記固着部材が筒状とされており、該固着部材の下端部が前記インナ部材に形成された溝部に嵌合されて該インナ部材に固定されていると共に、該固着部材における該溝部から突出する部分が前記筒状部とされている請求項１又は２に記載のアッパサポート。 The fixing member has a tubular shape, and the lower end portion of the fixing member is fitted into a groove portion formed in the inner member and fixed to the inner member, and protrudes from the groove portion in the fixing member. The upper support according to claim 1 or 2, wherein the portion is the tubular portion. 前記本体ゴム弾性体の前記テーパ支持面に沿って広がるアウタ部材が該本体ゴム弾性体に固着されており、前記インナ部材および前記固着部材の前記筒状部が該アウタ部材と該本体ゴム弾性体によって弾性連結されている請求項１〜４の何れか一項に記載のアッパサポート。 An outer member extending along the tapered support surface of the main body rubber elastic body is fixed to the main body rubber elastic body, and the inner member and the tubular portion of the fixing member are the outer member and the main body rubber elastic body. The upper support according to any one of claims 1 to 4, which is elastically connected by. 前記固着部材が前記インナ部材よりも薄肉とされている請求項１〜５の何れか一項に記載のアッパサポート。The upper support according to any one of claims 1 to 5, wherein the fixing member is thinner than the inner member.
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