JP2011196484A - Vibration control device - Google Patents

Vibration control device Download PDF

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JP2011196484A
JP2011196484A JP2010065032A JP2010065032A JP2011196484A JP 2011196484 A JP2011196484 A JP 2011196484A JP 2010065032 A JP2010065032 A JP 2010065032A JP 2010065032 A JP2010065032 A JP 2010065032A JP 2011196484 A JP2011196484 A JP 2011196484A
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rubber
vibration
bracket member
pair
outer member
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JP5342483B2 (en
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Hironori Kato
洋徳 加藤
Toshifumi Sakata
利文 坂田
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Toyo Tire Corp
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Toyo Tire and Rubber Co Ltd
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Priority to JP2010065032A priority Critical patent/JP5342483B2/en
Priority to PCT/JP2011/051961 priority patent/WO2011114784A1/en
Priority to US13/582,876 priority patent/US9010739B2/en
Priority to CN201180014584.2A priority patent/CN102822558B/en
Publication of JP2011196484A publication Critical patent/JP2011196484A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a vibration control device capable of achieving reduction of the weight and simplifying the structure of a resin molding die for forming a bracket member in a structure for fixing an exterior member, to which vibration control leg parts are to be bonded, to the bracket member formed from a resin material by mechanical engagement.SOLUTION: Engagement in a direction, where the exterior member 60 slips out of the bracket member 30, is achieved by embedding a pair of first wall parts 62 of the exterior member 60 in the bracket member 30. Therefore, it is unnecessary to jut out the bracket member 30 toward the vibration control leg members 50 for engagement with the exterior member 60, and it is possible to prevent a situation, where as in the case of a conventional one, undercut shapes are formed. Consequently, the structure of the resin molding die 400 for molding the bracket member 30 can be simplified. Furthermore, since a part of the exterior member 60 between the pair of vibration control leg members 50 is omitted, the weight can be reduced by the weight of the omitted part.

Description

本発明は、防振装置に関し、特に、防振脚部が接着される外側部材を樹脂材料からなるブラケット部材に機械的な係合により固着させる構造において、軽量化を図ることができると共に、ブラケット部材を成形する樹脂成形金型の構造を簡素化することができる防振装置に関するものである。   The present invention relates to a vibration isolator, and in particular, in a structure in which an outer member to which a vibration isolating leg is bonded is fixed to a bracket member made of a resin material by mechanical engagement, the weight can be reduced, and the bracket The present invention relates to a vibration isolator capable of simplifying the structure of a resin molding die for molding a member.

防振装置の一例として、例えば、車体側に取着されるブラケット部材に内挿孔を設け、その内挿孔に内挿配置される内筒部材を振動源（例えば、エンジンやモータ、トランスミッションなど）側に取着すると共に、内挿孔の内周側と内筒部材の外周側とをゴム状弾性体からなる防振脚部で連結する構造のものが知られている。   As an example of the vibration isolator, for example, an insertion hole is provided in a bracket member attached to the vehicle body side, and an inner cylinder member inserted in the insertion hole is used as a vibration source (for example, an engine, a motor, a transmission, etc. In addition, a structure is known in which the inner peripheral side of the insertion hole and the outer peripheral side of the inner cylinder member are connected by a vibration-proof leg portion made of a rubber-like elastic body.

近年では、軽量化や低コスト化を目的として、ブラケット部材を樹脂材料から構成することが試みられている。例えば、特許文献１には、ブラケット部材を樹脂材料から構成すると共に、そのブラケット部材に設けたマウント装着孔（内挿孔）の内周面に金属プレートを配設し、その金属プレートに本体ゴム弾性体（防振脚部）を接着することで、本体ゴム弾性体をマウント装着孔の内周面に固着する技術が開示されている。   In recent years, it has been attempted to construct the bracket member from a resin material for the purpose of reducing the weight and cost. For example, in Patent Document 1, a bracket member is made of a resin material, and a metal plate is disposed on an inner peripheral surface of a mount mounting hole (insertion hole) provided in the bracket member. A technique for fixing a main rubber elastic body to an inner peripheral surface of a mount mounting hole by bonding an elastic body (vibration-proof leg portion) is disclosed.

この技術によれば、本体ゴム弾性体とブラケット部材との間に金属プレートを介しているので、大変位入力時に本体ゴム弾性体から局所的な集中荷重が作用する場合でも、その集中荷重を金属プレートで受け止めることができる。これにより、ブラケット部材に必要とされる強度を比較的小さくすることができ、その分、ブラケット部材の強度確保のための大型化を抑制することができる。   According to this technology, since the metal plate is interposed between the main rubber elastic body and the bracket member, even if a local concentrated load acts from the main rubber elastic body when a large displacement is input, the concentrated load is reduced to the metal. Can be received with a plate. Thereby, the intensity | strength required for a bracket member can be made comparatively small, and the enlargement for the intensity | strength ensuring of the bracket member can be suppressed by that much.

ところで、上述した従来の防振装置では、金属プレートを接着によってブラケット部材に固定する技術に加え、機械的な係合構造により固着させる技術も開示されている。この機械的な係合構造によれば、接着剤およびその塗布工程を不要とできる分、製造コストを低減することができる。   By the way, in the above-mentioned conventional vibration isolator, in addition to the technique of fixing a metal plate to a bracket member by adhesion, a technique of fixing by a mechanical engagement structure is also disclosed. According to this mechanical engagement structure, the manufacturing cost can be reduced by the amount that the adhesive and the coating process thereof are unnecessary.

特開平９−１７０６３４号公報（図１〜図５、段落［０００７］など）JP-A-9-170634 (FIGS. 1-5, paragraph [0007], etc.)

しかしながら、上述した従来の防振装置では、金属プレート（外側部材）を機械的に係合させるために、ブラケット部材の内挿孔の内周面の一部を防振脚部へ向けて張り出させる構造であり、その張り出し部分がアンダーカット形状となるため、ブラケット部材を成形するための樹脂成形金型の構造が複雑になるという問題点があった。   However, in the above-described conventional vibration isolator, in order to mechanically engage the metal plate (outer member), a part of the inner peripheral surface of the insertion hole of the bracket member projects toward the vibration isolating leg. Since the projecting portion has an undercut shape, the structure of the resin molding die for molding the bracket member is complicated.

また、上述した従来の防振装置では、内筒部材がいずれの方向へ変位しても、金属プレートとブラケット部材との係合状態を保ち、ブラケット部材から抜け出ることがないように、金属プレートを一方の脚部から他方の脚部までの間で連続する形状に形成する必要があった。そのため、金属プレートが大型化して、その分、重量が嵩むという問題点があった。   Further, in the above-described conventional vibration isolator, the metal plate is secured so that the metal plate and the bracket member remain engaged and do not come out of the bracket member regardless of which direction the inner cylinder member is displaced. It was necessary to form a continuous shape between one leg and the other leg. For this reason, there is a problem that the metal plate is enlarged and the weight is increased accordingly.

本発明は、上述した問題点を解決するためになされたものであり、防振脚部が接着される外側部材を樹脂材料からなるブラケット部材に機械的な係合により固着させる構造において、軽量化を図ることができると共に、ブラケット部材を成形する樹脂成形金型の構造を簡素化することができる防振装置を提供することを目的としている。   The present invention has been made in order to solve the above-described problems, and is reduced in weight in a structure in which an outer member to which a vibration-proof leg portion is bonded is fixed to a bracket member made of a resin material by mechanical engagement. An object of the present invention is to provide a vibration isolator capable of simplifying the structure of a resin molding die for molding a bracket member.

課題を解決するための手段および発明の効果Means for Solving the Problems and Effects of the Invention

請求項１記載の防振装置によれば、ブラケット部材の内挿孔に内挿された内筒部材に防振脚部の一端側が連結されると共に、防振脚部の他端側が金属材料からなる外側部材に加硫接着され、その外側部材がブラケット部材に係合されることで、防振脚部の他端側がブラケット部材の挿通孔の内周側に連結される。よって、内筒部材は、ブラケット部材の内挿孔の内周側に対して、防振脚部および外側部材を介して、変位可能に支持される。   According to the vibration isolator of claim 1, one end side of the vibration isolating leg portion is connected to the inner cylinder member inserted in the insertion hole of the bracket member, and the other end side of the anti-vibration leg portion is made of the metal material. When the outer member is vulcanized and bonded to the outer member, and the outer member is engaged with the bracket member, the other end side of the anti-vibration leg is connected to the inner peripheral side of the insertion hole of the bracket member. Therefore, the inner cylinder member is supported to be displaceable with respect to the inner peripheral side of the insertion hole of the bracket member via the vibration isolation leg portion and the outer member.

この場合、外側部材とブラケット部材とは、ブラケット部材に埋設された部位がそのブラケット部材に係合される。よって、外側部材を係合するためにブラケット部材側を防振脚部へ向けて張り出させる必要がなく、アンダーカット形状が形成されることを抑制することができるので、その分、ブラケット部材を成形する樹脂成形金型の構造の簡素化を図ることができるという効果がある。   In this case, the outer member and the bracket member are engaged with the bracket member at a portion embedded in the bracket member. Therefore, it is not necessary to project the bracket member side toward the vibration isolating leg portion to engage the outer member, and it is possible to suppress the formation of an undercut shape. There is an effect that the structure of the resin molding die to be molded can be simplified.

また、本発明によれば、一対の外側部材は、上記ブラケット部材に埋設される部位をそれぞれが備え、ブラケット部材に係合された状態をそれぞれ保つことができる。よって、従来品のように、内筒部材がいずれの方向へ変位しても、外側プレートとブラケット部材との係合状態を保ち、ブラケット部材から抜け出ることを防止するために、外側部材を一方の脚部から他方の脚部までの間で連続する形状とする必要がない。よって、一対の防振脚部の間の部分を省略することができるので、その分、外側部材を小型化して、軽量化を図ることができるという効果がある。   Further, according to the present invention, each of the pair of outer members includes a portion embedded in the bracket member, and can maintain the state of being engaged with the bracket member. Therefore, as in the conventional product, in order to maintain the engagement state between the outer plate and the bracket member and prevent the outer member from coming out of the bracket member even if the inner cylinder member is displaced in any direction, It is not necessary to have a continuous shape between the leg and the other leg. Therefore, since the part between a pair of anti-vibration legs can be omitted, there is an effect that the outer member can be miniaturized and the weight can be reduced accordingly.

請求項２記載の防振装置によれば、請求項１記載の防振装置の奏する効果に加え、防振脚部の他端側が加硫接着される板状の基板部と、その基板部の外縁からブラケット部材へ向けて延設されると共に周方向に連続して形成される板状の延設壁部とを外側部材が備え、延設壁部の少なくとも対向する２箇所がブラケット部材に係合可能に埋設されるので、内挿孔の内周面に対して垂直方向への外側部材の移動を規制することができる。また、基板部の外延からブラケット部材へ向けて延設されると共に周方向に連続して形成される延設壁部の内周側にブラケット部材の一部が内嵌されるので、内挿孔の内周面に対して平行方向への外側部材の移動を規制することができる。これにより、内筒部材がいずれの方向へ変位しても、外側部材とブラケット部材との係合状態を保ち、かかる外側部材がブラケット部材から抜け出ることを確実に防止することができるという効果がある。   According to the vibration isolator of claim 2, in addition to the effect of the vibration isolator of claim 1, the plate-like substrate portion to which the other end side of the vibration isolating portion is vulcanized and bonded, and the substrate portion The outer member includes a plate-like extending wall portion extending from the outer edge toward the bracket member and continuously formed in the circumferential direction, and at least two opposing portions of the extending wall portion are related to the bracket member. Since it can be embedded, it is possible to restrict the movement of the outer member in the direction perpendicular to the inner peripheral surface of the insertion hole. In addition, since a part of the bracket member is fitted on the inner peripheral side of the extending wall portion that extends from the outer extension of the substrate portion toward the bracket member and is continuously formed in the circumferential direction, the insertion hole The movement of the outer member in the direction parallel to the inner peripheral surface of the inner member can be restricted. Thereby, even if the inner cylinder member is displaced in any direction, there is an effect that the engagement state between the outer member and the bracket member can be maintained, and the outer member can be reliably prevented from coming out of the bracket member. .

更に、本発明によれば、外側部材は、板状の基板部の外縁から板状の延設壁部が一方へ向けて延設される形状（いわゆる容器形状）に形成されているので、１枚の平らな素板にパンチとダイとを用いてプレス加工機により絞り加工を施すことで、簡易に製造することができる。よって、外側部材の製造コストを低減して、その分、防振装置全体としての製品コストを低減することができるという効果がある。   Further, according to the present invention, the outer member is formed in a shape (so-called container shape) in which the plate-like extending wall portion extends from the outer edge of the plate-like substrate portion toward one side. It can be easily manufactured by drawing a flat base plate using a punch and a die with a press machine. Therefore, there is an effect that the manufacturing cost of the outer member can be reduced, and the product cost of the vibration isolator as a whole can be reduced accordingly.

また、この場合、延設壁部は、周方向に連続して形成されているので、その曲げ方向の強度を高めることができる。よって、その分、外側部材の板厚を小さくすることができるので、材料コストの低減を図ることができると共に、軽量化を図ることができるという効果がある。   In this case, since the extending wall portion is continuously formed in the circumferential direction, the strength in the bending direction can be increased. Therefore, the plate thickness of the outer member can be reduced correspondingly, so that there is an effect that the material cost can be reduced and the weight can be reduced.

請求項３記載の防振装置によれば、請求項２記載の防振装置の奏する効果に加え、外側部材は、基板部に貫通孔が貫通形成されているので、基板部を板状に形成する場合であっても、かかる基板部が防振装置の製造過程で変形することを防止できるという効果がある。即ち、基板部に防振脚部をゴム加硫金型内で加硫接着する際には、ゴム加硫金型内に注入されたゴム状弾性体から作用する加硫圧力を、貫通孔によって逃がすことができ、同様に、外側部材に加硫接着された防振脚部を樹脂成形金型内に設置してブラケット部材をインサート成形する際には、樹脂成形金型内に注入された樹脂材料の注入圧力を、貫通孔によって逃がすことができるので、外側部材が変形することを防止できる。   According to the vibration isolator of claim 3, in addition to the effect of the vibration isolator of claim 2, the outer member has a through hole formed in the substrate portion, so the substrate portion is formed in a plate shape. Even if it does, there exists an effect that it can prevent that this board | substrate part deform | transforms in the manufacture process of a vibration isolator. That is, when the vibration-proof leg portion is vulcanized and bonded to the substrate portion in the rubber vulcanization mold, the vulcanization pressure acting from the rubber-like elastic body injected into the rubber vulcanization die is set by the through hole. Similarly, when the vibration-proof leg portion vulcanized and bonded to the outer member is installed in the resin mold and the bracket member is insert-molded, the resin injected into the resin mold Since the injection pressure of the material can be released by the through hole, the outer member can be prevented from being deformed.

ここで、外側部材の延設壁部の内周側にはブラケット部材の一部が内嵌されるところ、本発明のように、基板部に貫通孔が貫通形成されていれば、ブラケット部材をインサート成形する際には、樹脂成形金型内に注入された樹脂材料の注入圧力を、貫通孔を通じて、防振脚部へ作用させることができる。これにより、防振脚部に予圧縮を付与することができるので、その耐久性の向上を図ることができるという効果がある。また、樹脂材料の注入圧力を変更することで、予圧縮量を変化させることができるので、防振脚部のばね特性を調整することができるという効果がある。   Here, when a part of the bracket member is fitted on the inner peripheral side of the extending wall portion of the outer member, if the through hole is formed through the substrate portion as in the present invention, the bracket member is When insert molding is performed, the injection pressure of the resin material injected into the resin mold can be applied to the vibration isolation leg through the through hole. Thereby, since pre-compression can be given to the vibration-proof leg part, there exists an effect that the improvement of the durability can be aimed at. Moreover, since the amount of pre-compression can be changed by changing the injection pressure of the resin material, there is an effect that the spring characteristic of the vibration isolation leg portion can be adjusted.

更に、本発明によれば、ブラケット部材をインサート成形する際には、樹脂成形金型内に注入された樹脂材料が、貫通孔を通じて、防振脚部側へ押し込まれるので、かかる樹脂材料が貫通孔を貫通しつつ防振脚部に嵌り込んだ内嵌状態となる。よって、かかる内嵌状態により、ブラケット部材からの外側部材の抜け出しをより確実に防止することができるという効果がある。   Furthermore, according to the present invention, when the bracket member is insert-molded, the resin material injected into the resin molding die is pushed into the vibration-proof leg portion side through the through-hole, so that the resin material penetrates. It will be in the internal fitting state which fitted in the vibration-proof leg part, penetrating the hole. Therefore, such an internal fitting state has an effect that the outer member can be more reliably prevented from coming off from the bracket member.

請求項４記載の防振装置によれば、請求項２又は３に記載の防振装置の奏する効果に加え、外側部材の延設壁部は、互いに対向して配置されると共にブラケット部材にそれぞれ少なくとも一部が埋設される一対の第１壁部と、それら第１壁部の端部同士を連結すると共にブラケット部材を挟んで互いに対向して配置され平板状に形成される一対の第２壁部とを備え、第２壁部を覆う覆設ゴム部がブラケット部材の外面から突出されているので、かかる覆設ゴム部を、相手部品に当接してその変位を規制するストッパ部として利用できるという効果がある。   According to the vibration isolator according to claim 4, in addition to the effect of the vibration isolator according to claim 2 or 3, the extending wall portions of the outer member are arranged to face each other and to the bracket member, respectively. A pair of first walls that are at least partially embedded, and a pair of second walls that connect the ends of the first walls and are opposed to each other with a bracket member interposed therebetween and are formed in a flat plate shape Since the covering rubber portion that covers the second wall portion protrudes from the outer surface of the bracket member, the covering rubber portion can be used as a stopper portion that abuts against the counterpart part and restricts its displacement. There is an effect.

この場合、覆設ゴム部には、平板状に形成される一対の第２壁部が埋設されているので、相手部品が当接される際の衝撃力を第２壁部で受け止めて、ブラケット部材の負担を軽減することができる。これにより、ブラケット部材が樹脂材料から形成される場合であっても、その耐久性の向上を図ることができるという効果がある。更に、第２壁部は、第１壁部の端部と連結されているので、その分、曲げ方向の強度を高めることができ、相手部品が当接される際の衝撃力を受け止める第２壁部の耐久性の向上を図ることができるという効果がある。また、第１壁部を利用して、第２壁部の強度を高めることで、その分、外側部材の板厚を小さくすることができるので、材料コストの低減を図ることができると共に、軽量化を図ることができるという効果がある。   In this case, since the pair of second wall portions formed in a flat plate shape are embedded in the covering rubber portion, the impact force when the mating part is brought into contact with the second wall portion is received by the bracket. The burden on the member can be reduced. Thereby, even if it is a case where a bracket member is formed from a resin material, there exists an effect that the improvement of the durability can be aimed at. Furthermore, since the second wall portion is connected to the end portion of the first wall portion, the strength in the bending direction can be increased correspondingly, and the second wall portion receives the impact force when the mating part comes into contact. There is an effect that the durability of the wall can be improved. Further, by using the first wall portion to increase the strength of the second wall portion, the plate thickness of the outer member can be reduced accordingly, so that the material cost can be reduced and the weight can be reduced. There is an effect that can be achieved.

また、覆設ゴム部は、防振脚部に連なるゴム状弾性体からなるので、防振脚部と覆設ゴム部とを同時に加硫成形することができ、その分、製造コストの削減を図ることができるという効果がある。更に、防振脚部に連なるゴム状弾性体から覆設ゴム部を形成することで、外側部材全体をゴム状弾性体で覆うことができるので、外側部材の耐食性の向上を図ることができるという効果がある。   Moreover, since the covering rubber part is made of a rubber-like elastic body connected to the vibration isolating leg part, the vibration isolating leg part and the covering rubber part can be vulcanized at the same time, thereby reducing the manufacturing cost. There is an effect that it can be planned. Furthermore, by forming the covering rubber portion from the rubber-like elastic body connected to the anti-vibration leg portion, the entire outer member can be covered with the rubber-like elastic body, so that the corrosion resistance of the outer member can be improved. effective.

本発明の第１実施の形態における防振装置の斜視図である。It is a perspective view of the vibration isolator in 1st Embodiment of this invention. （ａ）は、防振装置の正面図であり、（ｂ）は、防振装置の側面図である。(A) is a front view of a vibration isolator, (b) is a side view of a vibration isolator. （ａ）は、外側部材の斜視図であり、（ｂ）は、外側部材の背面図である。(A) is a perspective view of an outer member, (b) is a rear view of an outer member. （ａ）は、図３（ｂ）のＩＶａ−ＩＶａ線における外側部材の断面図であり、（ｂ）は、図３（ｂ）のＩＶｂ−ＩＶｂ線における外側部材の断面図である。(A) is sectional drawing of the outer member in the IVa-IVa line | wire of FIG.3 (b), (b) is sectional drawing of the outer member in the IVb-IVb line | wire of FIG.3 (b). 第１成形体の斜視図である。It is a perspective view of a 1st molded object. （ａ）は、第１成形体の正面図であり、（ｂ）は、第１成形体の側面図である。(A) is a front view of a 1st molded object, (b) is a side view of a 1st molded object. （ａ）は、図６（ａ）のＶＩＩａ−ＶＩＩａ線における第１成形体の断面図であり、（ｂ）は、図６（ｂ）のＶＩＩｂ−ＶＩＩｂ線における第１成形体の断面図である。(A) is sectional drawing of the 1st molded object in the VIIa-VIIa line | wire of Fig.6 (a), (b) is sectional drawing of the 1st molded object in the VIIb-VIIb line | wire of FIG.6 (b). is there. 図６（ａ）のＶＩＩＩ−ＶＩＩＩ線における第１成形体の断面図である。It is sectional drawing of the 1st molded object in the VIII-VIII line of Fig.6 (a). 内筒部材および外側部材がセットされて型締めされたゴム加硫金型の断面図である。FIG. 3 is a cross-sectional view of a rubber vulcanization mold in which an inner cylinder member and an outer member are set and clamped. 第１成形体がセットされて型締めされた樹脂成形金型の断面図である。It is sectional drawing of the resin mold which the 1st molded object was set and clamped. 防振装置の部分断面図である。It is a fragmentary sectional view of a vibration isolator. 防振装置の部分断面図である。It is a fragmentary sectional view of a vibration isolator. （ａ）は、第２実施の形態における外側部材の断面図であり、（ｂ）は、第３実施の形態における外側部材の断面図である。(A) is sectional drawing of the outer member in 2nd Embodiment, (b) is sectional drawing of the outer member in 3rd Embodiment.

以下、本発明の好ましい実施例について、添付図面を参照して説明する。まず、図１及び図２を参照して防振装置１の全体構成について説明する。図１は、本発明の第１実施の形態における防振装置１の斜視図であり、図２（ａ）は、防振装置１の正面図であり、図２（ｂ）は、防振装置１の側面図である。なお、図１及び図２において、矢印Ｆ，Ｂ方向は車両前後方向を、矢印Ｌ，Ｒ方向は車両左右方向を、矢印Ｕ，Ｄ方向は車両上下方向を、それぞれ表している。   Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. First, the whole structure of the vibration isolator 1 is demonstrated with reference to FIG.1 and FIG.2. FIG. 1 is a perspective view of a vibration isolator 1 according to a first embodiment of the present invention, FIG. 2 (a) is a front view of the vibration isolator 1, and FIG. 2 (b) is a vibration isolator. 1 is a side view of FIG. 1 and 2, arrows F and B indicate the vehicle longitudinal direction, arrows L and R indicate the vehicle lateral direction, and arrows U and D indicate the vehicle vertical direction.

図１及び図２に示すように、防振装置１は、自動車の振動源（図示せず）を支持固定しつつ、その振動源から発生する振動を車体（図示せず）へ伝達させないようにするものであり、車体側に取り付けられる筒状の軸短取付金具１１及び軸長取付金具１２と、それら両取付金具１１，１２の外周面に加硫接着されると共にゴム状弾性体から構成される弾性体２１，２２と、それら両弾性体２１，２２がそれぞれ圧入される圧入孔を有すると共に樹脂材料から構成されるブラケット部材３０と、そのブラケット部材３０に形成された内挿孔３１に内挿配置されると共に振動源側に取り付けられる内筒部材４０と、その内筒部材３０に一端側が連結されると共にゴム状弾性体から構成される一対の防振脚部５０と、それら一対の防振脚部５０の他端側がそれぞれ連結されると共にブラケット部材４０に係合される一対の外側部材６０（図７参照）と、を主に備えて構成される。   As shown in FIGS. 1 and 2, the vibration isolator 1 supports and fixes a vibration source (not shown) of an automobile so that vibration generated from the vibration source is not transmitted to a vehicle body (not shown). It is composed of a cylindrical short shaft mounting bracket 11 and a long shaft mounting bracket 12 attached to the vehicle body side, and vulcanized and bonded to the outer peripheral surfaces of both the mounting brackets 11 and 12 and a rubber-like elastic body. Elastic members 21, 22, a bracket member 30 having a press-fit hole into which both the elastic bodies 21, 22 are press-fitted and made of a resin material, and an insertion hole 31 formed in the bracket member 30. An inner cylinder member 40 that is inserted and attached to the vibration source side, a pair of anti-vibration legs 50 that are connected to the inner cylinder member 30 at one end side and made of a rubber-like elastic body, and the pair of anti-vibration parts Other swing legs 50 Side is composed mainly comprises a pair of outer member 60 (see FIG. 7) which is engaged to the bracket member 40 while being connected, respectively, to.

なお、振動源は、本実施の形態では、モータであるが、他には、エンジンやトランスミッションなどが例示される。   In this embodiment, the vibration source is a motor, but other examples include an engine and a transmission.

軸短取付金具１１及び軸長取付金具１２は、鉄鋼材料から構成され、車体側に取り付けられる金具である。これら両取付金具１１，１２は、貫通孔を有する筒状に形成されており、この貫通孔には、ボルト（図示せず）が内挿され、そのボルトの締結により、両取付金具１１，１２の端面がそれぞれ車体側に取り付けられる。   The short shaft mounting bracket 11 and the long shaft mounting bracket 12 are made of a steel material and are mounted on the vehicle body side. Both the mounting brackets 11 and 12 are formed in a cylindrical shape having a through-hole, and a bolt (not shown) is inserted into the through-hole. Are attached to the vehicle body side.

ブラケット部材３０は、樹脂材料から正面略矩形の枠状体として構成されており、圧入孔と内挿孔３１とが厚み方向に貫通して形成されている。圧入孔には、外周面に弾性体２１，２２が加硫接着された各取付金具１１，１２が圧入されて保持される。内挿孔３１には、内筒部材４０が内挿される。なお、内挿孔３１の内周面は、大変位入力時における内筒部材４０を受け止めてその変位を規制するストッパ部としても機能する。   The bracket member 30 is made of a resin material as a substantially rectangular frame-like body, and has a press-fitting hole and an insertion hole 31 penetrating in the thickness direction. The fittings 11 and 12 having the elastic bodies 21 and 22 vulcanized and bonded to the outer peripheral surface are press-fitted and held in the press-fitting holes. The inner cylinder member 40 is inserted into the insertion hole 31. The inner peripheral surface of the insertion hole 31 also functions as a stopper portion that receives the inner cylinder member 40 when a large displacement is input and restricts the displacement.

ブラケット部材３０の上端および下端には、複数の肉抜き穴３２が厚み方向に貫通して形成されている。なお、圧入穴、内挿孔３１および肉抜き孔３２は、開口側へ向けて内径が拡大されるテーパ状の内周を有すると共に、内筒部材４０及び後述する外側部材６０の孔６３ａの軸心方向と平行に形成されている。よって、樹脂成形金型４００（図１０参照）からの脱型性が確保される。   At the upper end and the lower end of the bracket member 30, a plurality of lightening holes 32 are formed penetrating in the thickness direction. The press-fitting hole, the insertion hole 31 and the lightening hole 32 have a tapered inner periphery whose inner diameter is enlarged toward the opening side, and the shaft of the inner cylinder member 40 and a hole 63a of the outer member 60 described later. It is formed parallel to the direction of the heart. Therefore, the mold release property from the resin molding die 400 (see FIG. 10) is ensured.

内筒部材４０は、アルミ合金から貫通孔を有する断面楕円形の筒状に形成される。内筒部材４０は、貫通孔に挿通されたボルト（図示せず）を介して、振動源側に締結固定される。一対の防振脚部５０は、ゴム状弾性体から構成され、振動源側で発生する振動が車体側へ伝達されることを抑制するための部材であり、一端側が内筒部材４０の外周面に連結されると共に他端側がブラケット部材３０における挿通孔３１の内周面にそれぞれ連結される。   The inner cylinder member 40 is formed from an aluminum alloy into a cylindrical shape having an elliptical cross section having a through hole. The inner cylinder member 40 is fastened and fixed to the vibration source side via a bolt (not shown) inserted through the through hole. The pair of anti-vibration legs 50 are composed of rubber-like elastic bodies, and are members for suppressing the vibration generated on the vibration source side from being transmitted to the vehicle body side, and one end side is the outer peripheral surface of the inner cylinder member 40. Are connected to the inner peripheral surface of the insertion hole 31 in the bracket member 30.

これら一対の防振脚部５０は、内挿孔３１の車両前後方向となる内周面に連結されており、内挿孔３１の上側および下側（車両上方側および下方側）との間には空間が形成される。そのため、防振脚部５０は、内筒部材４０を車両上下方向へ変位させる際の上下方向ばね定数が、内筒部材４０を車両左右方向へ変位させる際の左右方向ばね定数よりも小さくされている。   The pair of anti-vibration legs 50 are connected to the inner circumferential surface of the insertion hole 31 in the vehicle front-rear direction, and between the upper side and the lower side (the vehicle upper side and the lower side) of the insertion hole 31. A space is formed. Therefore, in the vibration isolation leg portion 50, the vertical spring constant when the inner cylinder member 40 is displaced in the vehicle vertical direction is made smaller than the horizontal spring constant when the inner cylinder member 40 is displaced in the vehicle left-right direction. Yes.

次いで、図３及び図４を参照して、外側部材６０について説明する。図３（ａ）は、外側部材６０の斜視図であり、図３（ｂ）は、外側部材６０の背面図である。図４（ａ）は、図３（ｂ）のＩＶａ−ＩＶａ線における外側部材６０の断面図であり、図４（ｂ）は、図３（ｂ）のＩＶｂ−ＩＶｂ線における外側部材６０の断面図である。   Next, the outer member 60 will be described with reference to FIGS. 3 and 4. FIG. 3A is a perspective view of the outer member 60, and FIG. 3B is a rear view of the outer member 60. 4A is a cross-sectional view of the outer member 60 taken along line IVa-IVa in FIG. 3B, and FIG. 4B is a cross-sectional view of the outer member 60 taken along line IVb-IVb in FIG. FIG.

図３及び図４に示すように、外側部材６０は、金属材料からなる１枚の平板状体にプレス加工機による絞り加工を施すことで、容器状に形成された部材であり、一対の防振脚部５０にそれぞれ埋設されると共に、ブラケット部材３０に係合される。この外側部材６０は、背面視矩形状に形成される基板部６１と、その基板部６１の外縁であって対向する２辺（図３（ｂ）上側および下側）から背面側（図３（ｂ）紙面手前側）へ向けて延設される一対の第１壁部６２と、基板部６１の残りの２辺から背面側へ向けて延設されると共に一対の第１壁部６１の端部同士を連結する一対の第２壁部６３とを備える。   As shown in FIGS. 3 and 4, the outer member 60 is a member formed in a container shape by drawing a flat plate made of a metal material by a press machine, and a pair of protective members. Each is embedded in the swing leg 50 and engaged with the bracket member 30. The outer member 60 has a substrate portion 61 formed in a rectangular shape when viewed from the back, and two opposite sides (the upper side and the lower side in FIG. 3B) that are the outer edges of the substrate portion 61 and the rear side (FIG. 3 ( b) A pair of first wall portions 62 extending toward the front side of the paper) and the ends of the pair of first wall portions 61 extending from the remaining two sides of the substrate portion 61 toward the back side. And a pair of second wall parts 63 that connect the parts.

基板部６１は、背面側へ向けて凸となり軸心Ｌ１を有する円弧状に湾曲して形成される（図４（ａ）参照）。即ち、基板部６１は、図４（ａ）において、紙面垂直方向に軸心Ｌ１が伸びる円筒の側壁の一部を切り取った形状に形成される。基板部６１の板面中央には、背面視略矩形状の貫通孔６１ａが穿設される。   The substrate portion 61 is formed to be convex toward the back side and to be curved in an arc shape having the axis L1 (see FIG. 4A). That is, in FIG. 4A, the substrate portion 61 is formed in a shape in which a part of a side wall of a cylinder whose axis L1 extends in a direction perpendicular to the paper surface is cut off. A through-hole 61 a having a substantially rectangular shape when viewed from the back is formed in the center of the plate surface of the substrate portion 61.

貫通孔６１ａは、一対の第２壁部６３に対してはそれらの対向間中央に配置されているが、一対の第１壁部６２に対してはそれらの対向間中央よりも一方側（図３（ｂ）及び図４（ａ）下側）へ偏って配置されている。よって、図４（ａ）において、貫通孔６１ａの上方側の基板部６１により形成される弧の中心角θａは、貫通孔６１ａの下方側の基板部６１により形成される弧の中心角θｂよりも大きくされている。   The through-hole 61a is disposed at the center between the pair of second wall portions 63, but is located on one side of the pair of first wall portions 62 with respect to the pair of first wall portions 62 (see FIG. 3 (b) and FIG. 4 (a) lower side). Therefore, in FIG. 4A, the central angle θa of the arc formed by the substrate portion 61 on the upper side of the through hole 61a is larger than the central angle θb of the arc formed by the substrate portion 61 on the lower side of the through hole 61a. Has also been enlarged.

第１壁部６２は、ブラケット部材３０に対する外側部材６０の車両前後方向（矢印Ｆ，Ｂ方向）及び車両上下方向（矢印Ｕ，Ｄ）への移動を主に規制するための平板状の部位であり（図１２参照）、一対が対向配置されると共に、それら一対の対向間隔が、基板部６１の背面側から離間するに従って拡大する末広がり状に形成されている（図４（ａ）参照）。なお、一対の第１壁部６２は互いに同じ形状に形成されている。   The first wall portion 62 is a flat plate-like portion for mainly restricting movement of the outer member 60 with respect to the bracket member 30 in the vehicle longitudinal direction (arrows F and B directions) and the vehicle vertical direction (arrows U and D). Yes (see FIG. 12), and a pair is arranged opposite to each other, and the distance between the pair of opposing faces is formed so as to widen away from the back side of the substrate portion 61 (see FIG. 4 (a)). The pair of first wall portions 62 are formed in the same shape.

第２壁部６３は、ブラケット部材３０に対する外側部材６０の車両左右方向（矢印Ｌ，Ｒ）への移動を主に規制するための平板状の部位であり（図１０参照）、一対が平行を保ちつつ対向配置されている（図４（ｂ）参照）。これら一対の第２壁部６３には、正面視円形の孔６３ａが、各第２壁部６３に対して２箇所ずつ合計４箇所に穿設されている。   The second wall portion 63 is a flat portion for mainly restricting movement of the outer member 60 in the left-right direction of the vehicle (arrows L and R) with respect to the bracket member 30 (see FIG. 10), and a pair of the second wall portions 63 are parallel to each other. They are arranged opposite to each other (see FIG. 4B). In the pair of second wall portions 63, holes 63 a having a circular shape when viewed from the front are formed in a total of four locations, two locations for each second wall portion 63.

これら各孔６３ａは、図４（ａ）に示すように、一対の第１壁部６２の内の一方の第１壁部６２側（図４（ａ）下側）に偏った位置に配置されている。詳細には、２箇所に穿設される孔６３ａの内の一方の孔６３ａは一対の第１壁部６２間の略中央に、他方の孔６３ａは一対の第１壁部６２の内の一方の第１壁部６２側に、それぞれ配置されている。   As shown in FIG. 4A, each of the holes 63a is disposed at a position biased toward one first wall 62 side (lower side in FIG. 4A) of the pair of first wall portions 62. ing. Specifically, one of the holes 63 a formed at two locations is substantially at the center between the pair of first wall portions 62, and the other hole 63 a is one of the pair of first wall portions 62. Are arranged on the first wall 62 side.

第２壁部６３には、正面視半円状の膨出部が外縁から膨出形成されており、その膨出部と同心となる位置に各孔６３ａが配置されている。なお、このように、膨出部と貫通孔６１ａとが共に、一対の第１壁部６１の対向間中央よりも一方側に偏って配置されていることで、貫通孔６１ａによる強度の低下を、膨出部により補うことができるので、外側部材６０全体としての強度の向上を図ることができる。   The second wall 63 has a bulged portion that is semicircular when viewed from the front, and is bulged from the outer edge, and each hole 63a is disposed at a position that is concentric with the bulged portion. As described above, since both the bulging portion and the through hole 61a are arranged to be deviated to one side from the center between the pair of first wall portions 61, the strength of the through hole 61a is reduced. Since it can be compensated by the bulging portion, the strength of the outer member 60 as a whole can be improved.

ここで、一対の第２壁部６３は、孔６３ａの配置も含め、互いに同じ形状に形成されている。そのため、外側部材６０は、防振装置１（第１成形体１００）の左右いずれにも共通に使用することができる（図７参照）。   Here, the pair of second wall portions 63 are formed in the same shape as each other including the arrangement of the holes 63a. Therefore, the outer member 60 can be used in common on both the left and right sides of the vibration isolator 1 (first molded body 100) (see FIG. 7).

次いで、図５から図８を参照して、第１成形体１００について説明する。図５は、第１成形体１００の斜視図である。図６（ａ）は、第１成形体１００の正面図であり、図６（ｂ）は、第１成形体１００の側面図である。また、図７（ａ）は、図６（ａ）のＶＩＩａ−ＶＩＩａ線における第１成形体１００の断面図であり、図７（ｂ）は、図６（ｂ）のＶＩＩｂ−ＶＩＩｂ線における第１成形体１００の断面図であり、図８は、図６（ａ）のＶＩＩＩ−ＶＩＩＩ線における第１成形体１００の断面図である。   Next, the first molded body 100 will be described with reference to FIGS. FIG. 5 is a perspective view of the first molded body 100. FIG. 6A is a front view of the first molded body 100, and FIG. 6B is a side view of the first molded body 100. 7A is a cross-sectional view of the first molded body 100 taken along the line VIIa-VIIa in FIG. 6A, and FIG. 7B is a cross-sectional view taken along the line VIIb-VIIb in FIG. FIG. 8 is a sectional view of the first molded body 100 taken along the line VIII-VIII in FIG.

図５から図８に示すように、第１成形体１００は、防振装置１を製造する過程（ゴム加硫金型３００を使用した加硫工程）における１次加工品であり、内筒部材４０と、その内筒部材４０に一端側が連結される一対の防振脚部５０と、それら一対の防振脚部５０の他端側がそれぞれ連結される一対の外側部材６０と、その外側部材６０を覆う各覆設ゴム５１〜５３とを主に備え、左右（図６（ａ）左右）対称に形成される。   As shown in FIGS. 5 to 8, the first molded body 100 is a primary processed product in the process of manufacturing the vibration isolator 1 (the vulcanization process using the rubber vulcanization mold 300), and the inner cylinder member 40, a pair of anti-vibration legs 50 having one end connected to the inner cylinder member 40, a pair of outer members 60 to which the other ends of the pair of anti-vibration legs 50 are respectively connected, and the outer member 60 The covering rubbers 51 to 53 are mainly provided and are symmetrically formed on the left and right (FIG. 6 (a) left and right).

図５から図８に示すように、内筒部材４０の上方側および下方側は、一対の防振脚部５０の一端側同士が連なることで、ゴム状弾性体により覆われており、車両上下方向（矢印Ｕ，Ｄ方向）への大変位入力時には、このゴム状弾性体を介して、内筒部材４０が挿通孔３１の内周面に当接される（図１参照）。   As shown in FIGS. 5 to 8, the upper side and the lower side of the inner cylinder member 40 are covered with rubber-like elastic bodies by connecting one end sides of a pair of vibration isolation legs 50, and When a large displacement is input in the direction (directions of arrows U and D), the inner cylindrical member 40 is brought into contact with the inner peripheral surface of the insertion hole 31 through the rubber-like elastic body (see FIG. 1).

一対の外側部材６０は、その背面側を向き合わせつつ所定間隔を隔てて対向配置され、その対向間に内筒部材４０が配置される。なお、一対の外側部材６０は、その基板部６１の軸心Ｌ１（図４（ａ）参照）が内筒部材４０の軸心と平行となる状態で配置される。   The pair of outer members 60 are opposed to each other with a predetermined interval while facing the back sides thereof, and the inner cylinder member 40 is disposed between the opposed members. The pair of outer members 60 are disposed in a state where the axis L1 (see FIG. 4A) of the base plate portion 61 is parallel to the axis of the inner cylinder member 40.

一対の防振脚部５０は、内筒部材４０と一対の外側部材６０との間をそれぞれ連結し、正面視において、左右に直線状に延びる形成されている。防振脚部５０には、外側部材６０の外面を覆う各覆設ゴム５１〜５３が連なっている。   The pair of anti-vibration legs 50 connect the inner cylinder member 40 and the pair of outer members 60 respectively, and are formed to extend linearly from side to side in a front view. The anti-vibration legs 50 are connected to respective covering rubbers 51 to 53 that cover the outer surface of the outer member 60.

基板覆設ゴム５１は、貫通孔６１ａ内に充填されつつ、基板部６１の外面を一定の厚み寸法で覆う。基板部６１の前面側（第１及び第２壁部６２，６３が延設される側）に覆設される基板覆設ゴム５１の厚み寸法は、十分に薄くされており、本実施の形態では、基板部６１の厚み寸法よりも小さくされている。そのため、後述するように、樹脂成形工程において、空間Ｓに樹脂材料が充填されると、その射出圧力により、樹脂材料が貫通孔６１ａに嵌り込む。   The substrate covering rubber 51 covers the outer surface of the substrate portion 61 with a constant thickness while filling the through hole 61a. The thickness of the substrate covering rubber 51 covered on the front side of the substrate portion 61 (the side on which the first and second wall portions 62 and 63 are extended) is sufficiently thin, and this embodiment Then, it is made smaller than the thickness dimension of the board | substrate part 61. FIG. Therefore, as will be described later, when the space S is filled with the resin material in the resin molding step, the resin material is fitted into the through hole 61a by the injection pressure.

第１壁覆設ゴム５２は、一対の第１壁部６２の外面をそれぞれ一定の厚み寸法で覆い、第２壁覆設ゴム５３は、一対の第１壁部６３の外面をそれぞれ一定の厚み寸法で覆う。なお、第２壁部５３の孔５３ａには、ゴム加硫金型３００のゴム型下ピン３０１ａ及びゴム型上ピン３０２ａが挿通されるので、第２壁覆設ゴム５３が充填されていない。同様に、第２壁部６３の対向面と反対側の面は、ゴム加硫金型３００のゴム型座部３０１ｃ，３０２ｃが当接されるので、ゴム型座部３０１ｃ，３０２ｃに対応する形状の窪みが第２壁覆設ゴム５３に形成される。また、第２壁部６３の対向面側に覆設される第２壁覆設ゴム５３は、孔６３ａに対応する部分のみ厚み寸法が厚くされている。   The first wall covering rubber 52 covers the outer surfaces of the pair of first wall portions 62 with a certain thickness, and the second wall covering rubber 53 covers the outer surfaces of the pair of first wall portions 63 with a certain thickness. Cover with dimensions. The hole 53a of the second wall portion 53 is not filled with the second wall covering rubber 53 because the rubber mold lower pin 301a and the rubber mold upper pin 302a of the rubber vulcanizing mold 300 are inserted. Similarly, since the rubber mold seats 301c and 302c of the rubber vulcanizing mold 300 are in contact with the surface opposite to the facing surface of the second wall 63, the shape corresponding to the rubber mold seats 301c and 302c. Is formed in the second wall covering rubber 53. In addition, the second wall covering rubber 53 that is covered on the opposite surface side of the second wall portion 63 is thickened only in a portion corresponding to the hole 63a.

このように、外側部材６０の外面を、各覆設ゴム５１〜５３が所定の厚み寸法で覆うことで、外側部材６０の第１壁部６２及び第２壁部６３の対向面間（即ち、基板部６１、第１壁部６２及び第２壁部６３で取り囲まれた部分）に空間Ｓが形成される。かかる空間Ｓには、後述するように、ブラケット部材３０の一部が内嵌される。   As described above, the covering rubbers 51 to 53 cover the outer surface of the outer member 60 with a predetermined thickness dimension, so that the opposing surfaces of the first wall portion 62 and the second wall portion 63 of the outer member 60 (that is, A space S is formed in a portion surrounded by the substrate portion 61, the first wall portion 62, and the second wall portion 63). As will be described later, a part of the bracket member 30 is fitted in the space S.

次いで、図９及び図１０を参照して、防振装置１の製造方法について説明する。図９は、内筒部材４０及び外側部材６０がセットされて型締めされたゴム加硫金型３００の断面図であり、キャビティ内にゴム状弾性体が注入される前の状態が図示されている。また、図１０は、第１成形体１００がセットされて型締めされた樹脂成形金型４００の断面図であり、キャビティ内に樹脂材料が注入される前の状態が図示されている。なお、図９及び図１０における断面は、図７（ａ）に示す断面に対応する。   Next, a method for manufacturing the vibration isolator 1 will be described with reference to FIGS. FIG. 9 is a cross-sectional view of the rubber vulcanization mold 300 in which the inner cylinder member 40 and the outer member 60 are set and clamped, and illustrates a state before the rubber-like elastic body is injected into the cavity. Yes. FIG. 10 is a cross-sectional view of the resin molding die 400 in which the first molded body 100 is set and clamped, and shows a state before the resin material is injected into the cavity. 9 and FIG. 10 corresponds to the cross section shown in FIG.

図９に示すように、ゴム加硫金型３００は、第１成形体１００を下流成形するための金型であり、上下に型締めされる下型３０１及び上型３０２と、それら上下型３０１，３０２の間に挟まれる中型３０３とを備え、型締めにより形成されるキャビティ内に注入孔（図示せず）から注入されて充填されたゴム状弾性体を加硫することで、第１成形体１００を成形する。   As shown in FIG. 9, the rubber vulcanization mold 300 is a mold for downstream molding the first molded body 100, and includes a lower mold 301 and an upper mold 302 that are clamped up and down, and the upper and lower molds 301. , 302 and vulcanizing a rubber-like elastic body filled and injected from an injection hole (not shown) into a cavity formed by mold clamping, thereby forming a first molding. The body 100 is molded.

下型３０１は、第1成形体１００の正面側（図６（ａ）紙面手前側）の外形を形成するための部位であり、内筒部材４０を係止するための内筒係止部３０１ａと、外側部材６０を係止するためのゴム下型ピン３０１ｂ及びゴム下型座部３０１ｃとを備える。   The lower mold 301 is a part for forming the outer shape of the first molded body 100 on the front side (the front side in FIG. 6A), and an inner cylinder locking portion 301a for locking the inner cylinder member 40. And a lower rubber mold pin 301b and a lower rubber seat 301c for locking the outer member 60.

内筒係止部３０１ａは、内筒部材４０の下端を係止する部位であり、内筒部材４０の下端が内嵌可能に凹設された凹設溝部と、内筒部材４０の下端開口から挿入される挿入ピンとを備える。   The inner cylinder locking portion 301 a is a portion that locks the lower end of the inner cylinder member 40, and includes a recessed groove portion that is recessed so that the lower end of the inner cylinder member 40 can be fitted inside, and a lower end opening of the inner cylinder member 40. And an insertion pin to be inserted.

ゴム下型ピン３０１ｂは、外側部材６０の孔６３ａに挿入される円柱状のピンであり、片側２箇所ずつ合計４箇所に形成されている。これら各ゴム下型ピン３０１ｂが各孔６３ａに挿入されることで、外側部材６０が所定位置に位置決めされる。   The lower rubber pin 301b is a cylindrical pin that is inserted into the hole 63a of the outer member 60, and is formed at a total of four locations, two on each side. By inserting each of these lower rubber mold pins 301b into each of the holes 63a, the outer member 60 is positioned at a predetermined position.

ゴム下型座部３０１ｃは、外側部材６０の第２壁部６３の外面を支持する部位であり、ゴム下型ピン３０１ｂよりも大径の円柱状に形成されると共にゴム下型ピン３０１ｂと同心に形成されている。よって、ゴム下型ピン３０１ｂは、ゴム下型ピン３０１ｂとの間に平坦面状の段差面を有し、その段差面が第２壁部６３の外面に当接して支持する円環状の座面とされている。なお、かかる座面は、その直径が第２壁部６３に形成される半円状の膨出部よりも小径に設定されており、第２壁部６３の外面内に収まるように形成されている。   The lower rubber mold seat portion 301c is a portion that supports the outer surface of the second wall portion 63 of the outer member 60, and is formed in a columnar shape having a larger diameter than the lower rubber pin 301b and concentric with the lower rubber pin 301b. Is formed. Therefore, the rubber lower mold pin 301b has a flat stepped surface between the rubber lower mold pin 301b and the stepped surface abuts on and supports the outer surface of the second wall portion 63. It is said that. The seat surface is set to have a diameter smaller than that of the semicircular bulge portion formed in the second wall portion 63 and is formed so as to be within the outer surface of the second wall portion 63. Yes.

上型３０２は、第１成形体１００の背面側（図６（ａ）紙面奥側）の外形を形成するための部位であり、下型３０１に対して上下動（図９上下方向移動）することで、型締め及び型開き可能に構成され、内筒部材４０を係止するための内筒係止部３０２ａと、外側部材６０を係止するためのゴム上型ピン３０２ｂ及びゴム上型座部３０２ｃとを備える。   The upper mold 302 is a part for forming the outer shape of the back side of the first molded body 100 (FIG. 6A, the back side of the paper), and moves up and down (moves up and down in FIG. 9) with respect to the lower mold 301. Accordingly, the inner cylinder locking portion 302a for locking the inner cylinder member 40, the rubber upper mold pin 302b for locking the outer member 60, and the rubber upper mold seat are configured to be mold-clamped and mold-openable. Part 302c.

内筒係止部３０１ａは、内筒部材４０の下端を係止する部位であり、内筒部材４０の下端が内嵌可能に凹設された凹設溝部と、内筒部材４０の下端開口から挿入される挿入ピンとを備える。   The inner cylinder locking portion 301 a is a portion that locks the lower end of the inner cylinder member 40, and includes a recessed groove portion that is recessed so that the lower end of the inner cylinder member 40 can be fitted inside, and a lower end opening of the inner cylinder member 40. And an insertion pin to be inserted.

なお、内筒係止部３０２ａ、ゴム上型ピン３０２ｂ及びゴム上型座部３０２ｃは、下型３０１における内筒係止部３０１ａ、ゴム下型ピン３０１ｂ及びゴム下型座部３０１ｃと同一の構成であるので、その説明を省略する。但し、ゴム上型ピン３０２ｂは、最大径が下型３０１におけるゴム下型ピン３０１ｂの外径よりも若干小さくされると共に、先端側ほど小径となる円錐形状のテーパピンとして構成されている。これにより、外側部材６０をセットする際には、その外側部材６０の寸法公差を吸収して、作業性の向上を図ることができると共に、外側部材６０のキャビティ内での保持を適正な姿勢で強固に行うことができる。   The inner cylinder locking portion 302a, the rubber upper mold pin 302b, and the rubber upper mold seat portion 302c have the same configuration as the inner cylinder locking portion 301a, the rubber lower mold pin 301b, and the rubber lower mold seat portion 301c in the lower mold 301. Therefore, the description thereof is omitted. However, the upper rubber mold pin 302b is configured as a conical tapered pin whose maximum diameter is slightly smaller than the outer diameter of the lower rubber mold pin 301b in the lower mold 301 and becomes smaller in diameter toward the distal end side. Thereby, when setting the outer member 60, the dimensional tolerance of the outer member 60 can be absorbed to improve workability, and the outer member 60 can be held in the cavity in an appropriate posture. It can be done firmly.

また、中型３０３は、第１成形体１００の上下面および両側面（図６（ａ）上下面および左右面）の外形を形成するための部位であり、分割可能な複数から構成され、下型３０１の所定位置に配置される。   The middle mold 303 is a part for forming the outer shapes of the upper and lower surfaces and both side surfaces (the upper and lower surfaces and the left and right surfaces in FIG. 6A) of the first molded body 100, and is composed of a plurality of separable lower molds. 301 is arranged at a predetermined position.

図１０に示すように、樹脂成形金型４００は、第１成形体１００をブラケット部材３０にインサート成形するための金型であり、上下に型締めされる下型４０１及び上型４０２を備え、型締めにより形成されるキャビティ内に注入孔（図示せず）から樹脂材料を注入（射出）して固化させることで、防振装置１を成形する。   As shown in FIG. 10, the resin molding die 400 is a die for insert molding the first molded body 100 into the bracket member 30, and includes a lower die 401 and an upper die 402 that are clamped up and down. The vibration isolator 1 is molded by injecting (injecting) a resin material into a cavity formed by mold clamping from an injection hole (not shown) and solidifying it.

下型４０１は、上型４０２と共にブラケット３０の外形を形成するための部位であり、内筒部材４０を係止するための内筒係止部４０１ａと、外側部材６０を係止するための樹脂下型ピン４０１ｂ及び樹脂下型座部４０１ｃとを備える。なお、内筒係止部４０１ａ、樹脂下型ピン４０１ｂ及び樹脂下型座部４０１ｃは、ゴム加硫金型３００の下型３０１における内筒係止部３０１ａ、ゴム下型ピン３０１ｂ及びゴム下型座部３０１ｃと同一の構成であるので、その説明を省略する。   The lower mold 401 is a part for forming the outer shape of the bracket 30 together with the upper mold 402, and an inner cylinder locking portion 401a for locking the inner cylinder member 40 and a resin for locking the outer member 60. A lower mold pin 401b and a resin lower mold seat portion 401c are provided. The inner cylinder locking portion 401a, the resin lower mold pin 401b, and the resin lower mold seat portion 401c are the inner cylinder locking portion 301a, the rubber lower mold pin 301b, and the rubber lower mold in the lower mold 301 of the rubber vulcanizing mold 300. Since it is the same structure as the seat part 301c, the description is abbreviate | omitted.

上型４０２は、下型４０１に対して上下動（図１０上下方向移動）することで、型締め及び型開き可能に構成され、内筒部材４０を係止するための内筒係止部４０２ａと、外側部材６０を係止するための樹脂上型ピン４０２ｂ及び樹脂上型座部４０２ｃとを備える。なお、内筒係止部４０２ａ、樹脂上型ピン４０２ｂ及び樹脂上型座部４０２ｃは、ゴム加硫金型３００の上型３０２における内筒係止部３０２ａ、ゴム上型ピン３０２ｂ及びゴム上型座部３０２ｃと同一の構成であるので、その説明を省略する。   The upper mold 402 is configured to be mold-clamped and mold-openable by moving up and down (moving up and down in FIG. 10) with respect to the lower mold 401, and an inner cylinder locking portion 402a for locking the inner cylinder member 40. And an upper resin mold pin 402b for locking the outer member 60 and an upper resin mold seat portion 402c. The inner cylinder locking portion 402a, the resin upper mold pin 402b, and the resin upper mold seat portion 402c are the inner cylinder locking portion 302a, the rubber upper mold pin 302b, and the rubber upper mold in the upper mold 302 of the rubber vulcanizing mold 300, respectively. Since it is the same structure as the seat part 302c, the description is abbreviate | omitted.

なお、下型４０１及び上型４０２には、圧入孔形成ピン（図示せず）が形成されており、樹脂加硫工程において、ブラケット部材３０の所定位置に２つの圧入孔（各取付金具１１，１２とそれらの外周面にそれぞれ加硫接着される弾性体２１，２２とからなるブッシュが圧入される孔、図１参照）を貫通形成する。   The lower mold 401 and the upper mold 402 are formed with press-fitting hole forming pins (not shown). In the resin vulcanization process, two press-fitting holes (each of the mounting brackets 11, 12 and holes (see FIG. 1) through which bushes composed of elastic bodies 21 and 22 vulcanized and bonded to the outer peripheral surfaces thereof are press-fitted.

防振装置１の製造は、まず、ゴム加硫工程を行い、第１成形体１００を成形し、次いで、樹脂成形工程へ移行し、第１成形体１００をブラケット部材３０にインサート成形することで行われる。   The vibration isolator 1 is manufactured by first performing a rubber vulcanization process to form the first molded body 100, then proceeding to a resin molding process, and insert molding the first molded body 100 into the bracket member 30. Done.

即ち、ゴム加硫工程では、まず、ゴム加硫金型３００の下型３０１に内筒部材４０及び外側部材６０をセットし、次いで、中型３０３を下型３０１の所定位置に配置した後、上型３０２を下降移動させて、型締めする。これにより、図９に示すように、ゴム状弾性体を加硫するための加硫空間であるキャビティが形成されるので、図示しない注入孔からキャビティ内にゴム状弾性体を注入して、かかるキャビティ内にゴム状弾性体を充填する。そして、ゴム加硫金型３００を加圧・加熱した状態で所定時間保持することで、ゴム状弾性体（防振脚部５０及び各覆設ゴム５１〜５３）が加硫され、第１成形体１００が成形される。   That is, in the rubber vulcanization process, first, the inner cylinder member 40 and the outer member 60 are set on the lower mold 301 of the rubber vulcanization mold 300, and then the middle mold 303 is disposed at a predetermined position on the lower mold 301, The mold 302 is moved down and clamped. As a result, a cavity, which is a vulcanization space for vulcanizing the rubber-like elastic body, is formed as shown in FIG. 9, and the rubber-like elastic body is injected into the cavity from an injection hole (not shown). A rubber-like elastic body is filled in the cavity. Then, by holding the rubber vulcanizing mold 300 in a pressurized and heated state for a predetermined time, the rubber-like elastic body (anti-vibration leg portion 50 and the respective covering rubbers 51 to 53) is vulcanized, and the first molding is performed. The body 100 is molded.

この場合、外側部材６０は、一対の第２壁部６３のそれぞれに２箇所ずつ孔６３ａが穿設されている。これら各孔６３ａは、一対の第１壁部６２の対向間中央よりも一方側に偏った位置に配置されている（図４（ａ）参照）。そのため、外側部材６０をゴム加硫金型３００の下型３０１にセットする際には、第２壁部６３に穿設された各孔６３ａへ各ゴム下型ピン３０１ｂをそれぞれ適切に挿通させることが必要とされる。   In this case, the outer member 60 has two holes 63 a in each of the pair of second wall portions 63. Each of these holes 63a is disposed at a position that is biased to one side of the center between the pair of first wall portions 62 (see FIG. 4A). Therefore, when the outer member 60 is set in the lower mold 301 of the rubber vulcanizing mold 300, each rubber lower mold pin 301b is appropriately inserted into each hole 63a formed in the second wall 63. Is needed.

即ち、外側部材６０の向きを正しく設定して、各孔６３ａのそれぞれへ対応するゴム下型ピン３０１ｂをそれぞれ挿通させなければ、外側部材６０の第２壁部６３を下型３０１のキャビティ（凹部）内に収容させることができない（第１壁覆設ゴム６２の厚み寸法が一対の第２壁部５２の離間間隔よりも十分に小さいため）。よって、貫通孔６１ａが偏った位置に形成され、外側部材６０に方向性がある場合であっても、かかる外側部材６０をゴム加硫金型３００へセットする際の作業不良（設置不良）を確実に抑制することができる。   That is, if the orientation of the outer member 60 is set correctly and the corresponding rubber lower mold pins 301b are not inserted into the respective holes 63a, the second wall 63 of the outer member 60 is inserted into the cavity (recessed portion) of the lower mold 301. ) (Because the thickness dimension of the first wall covering rubber 62 is sufficiently smaller than the distance between the pair of second wall portions 52). Therefore, even when the through-hole 61a is formed at a biased position and the outer member 60 has directionality, work failure (setting failure) when setting the outer member 60 to the rubber vulcanizing mold 300 is avoided. It can be surely suppressed.

また、一対の第２壁部６３には、それぞれ２箇所ずつに孔６３ａが穿設されるので、ゴム加硫工程において、外側部材６０を下型３０１にセットした状態では、かかる外側部材６０の回転を確実に規制することができる。よって、上型３０２を下型３０１に型締めする際には、各ゴム上型ピン３０２ｂを各孔６３ａへ確実に挿入させることができる。   Further, since the pair of second wall portions 63 are provided with holes 63a at two locations, respectively, in a state where the outer member 60 is set on the lower mold 301 in the rubber vulcanization process, The rotation can be reliably controlled. Therefore, when the upper mold 302 is clamped to the lower mold 301, each rubber upper mold pin 302b can be surely inserted into each hole 63a.

更に、一対の第２壁部６３のそれぞれの各孔６３ａにゴム下型ピン３０１ｂ及びゴム上型ピン３０２ｂがそれぞれ挿通されることで、ゴム加硫金型３００のキャビティ内において、外側部材６０を確実に保持できるので、ゴム状弾性体を介して作用する加硫圧力による外側部材６０の変形を抑制することができる。   Further, the rubber lower mold pin 301b and the rubber upper mold pin 302b are respectively inserted into the holes 63a of the pair of second wall portions 63, so that the outer member 60 is placed in the cavity of the rubber vulcanizing mold 300. Since it can hold | maintain reliably, the deformation | transformation of the outer member 60 by the vulcanization pressure which acts via a rubber-like elastic body can be suppressed.

また、このように、外側部材６０の設置不良および変形の抑制を可能とするために、孔６３ａ及びゴム下型ピン３０１ｂ等を複数設ける構成であっても、これら孔６３ａ及びゴム下型ピン３０１ｂ等は、断面円形という簡素な形状に形成されているので、その製造を容易として、防振装置１及びゴム加硫金型３００の製品コストの低減を図ることができる。   Further, in this way, even in a configuration in which a plurality of holes 63a and lower rubber mold pins 301b and the like are provided in order to enable the installation failure and deformation of the outer member 60 to be suppressed, these holes 63a and lower rubber mold pins 301b. Are formed in a simple shape having a circular cross section, and therefore, the manufacture thereof is facilitated, and the product cost of the vibration isolator 1 and the rubber vulcanizing mold 300 can be reduced.

外側部材６０を覆う各覆設ゴム５１〜５３は、防振脚部５０に連なるゴム状弾性体からなるので、防振脚部５０と各覆設ゴム５１〜５３とを同時に加硫成形することができ、その分、製造コストの削減を図ることができる。また、このように、各覆設ゴム５１〜５３を形成することで、外側部材６０全体をゴム状弾性体で覆うことができるので、外側部材６０の耐食性の向上を図ることができる。   Since each covering rubber 51 to 53 covering the outer member 60 is made of a rubber-like elastic body connected to the vibration isolating leg 50, the vibration isolating leg 50 and each covering rubber 51 to 53 are simultaneously vulcanized and molded. The manufacturing cost can be reduced accordingly. In addition, by forming the covering rubbers 51 to 53 in this way, the entire outer member 60 can be covered with the rubber-like elastic body, so that the corrosion resistance of the outer member 60 can be improved.

ここで、ゴム加硫金型３００のキャビティ内に設置された外側部材６０は、その外面を覆う各覆設ゴム５１〜５３の厚みの分、全面にわたってゴム加硫金型３００との間に隙間が空くため、ゴム状弾性体を介して作用する加硫圧力によって、変形されやすい。特に、基板部６１は、ゴム下型ピン３０１ｂ等により支持される第２壁部６３に比較して、変形が顕著なる。これに対し、本実施の形態における防振装置１では、基板部６１に貫通孔６１ａが貫通形成されているので、ゴム状弾性体を介して作用する加硫圧力を、貫通孔６１ａによって逃がすことができ、その結果、外側部材６０の変形を抑制することができる。   Here, the outer member 60 installed in the cavity of the rubber vulcanization mold 300 has a gap between it and the rubber vulcanization mold 300 over the entire surface by the thickness of the respective covering rubbers 51 to 53 covering the outer surface. Therefore, it is easily deformed by the vulcanization pressure acting through the rubber-like elastic body. In particular, the substrate portion 61 is significantly deformed as compared to the second wall portion 63 supported by the rubber lower mold pins 301b and the like. On the other hand, in the vibration isolator 1 according to the present embodiment, since the through hole 61a is formed through the substrate portion 61, the vulcanization pressure acting via the rubber-like elastic body is released by the through hole 61a. As a result, deformation of the outer member 60 can be suppressed.

次いで、樹脂成形工程では、樹脂成形金型４００の下型４０１に第１成形体１００をセットし、次いで、上型４０２を下降移動させて、型締めする。これにより、図１０に示すように、樹脂材料を充填して固化させるための空間であるキャビティが形成されるので、図示しない注入孔からキャビティ内に樹脂材料を注入（射出）して、所定時間保持することで、樹脂材料が固化され、第１成形体１００がブラケット部材３０にインサート成形される。最後に、ブッシュをブラケット部材３０の圧入孔へ圧入することで、防振装置１の製造が完了する。   Next, in the resin molding step, the first molded body 100 is set on the lower mold 401 of the resin molding die 400, and then the upper mold 402 is moved downward and clamped. As a result, as shown in FIG. 10, a cavity, which is a space for filling and solidifying the resin material, is formed. Therefore, the resin material is injected (injected) into the cavity from an injection hole (not shown), and a predetermined time is reached. By holding, the resin material is solidified, and the first molded body 100 is insert-molded into the bracket member 30. Finally, the bushing is press-fitted into the press-fitting hole of the bracket member 30 to complete the manufacture of the vibration isolator 1.

この場合、樹脂成形金型４００の下型４０１への第１成形体１００のセットは、外側部材６０の第２壁部６３に穿設された孔６３ａに樹脂下型ピン４０１ｂを挿通させることで行われるので、上述したゴム加硫工程の場合と同様に、第１成形体１００の向き（即ち、外側部材６０の向き）を正しく設定して、各孔６３ａのそれぞれへ対応する樹脂下型ピン４０１ｂをそれぞれ挿通させなければ、第１成形体１００を下型４０１のキャビティ（凹部）内に収容させることができない。よって、外側部材６０の貫通孔６１ａが偏った位置に形成され、第１成形体１００に方向性がある場合であっても、かかる第１成形体１００を樹脂成形金型４００へセットする際の作業不良（設置不良）を確実に抑制することができる。   In this case, the first molded body 100 is set in the lower mold 401 of the resin molding die 400 by inserting the resin lower mold pin 401b through the hole 63a formed in the second wall portion 63 of the outer member 60. Therefore, as in the case of the rubber vulcanization process described above, the direction of the first molded body 100 (that is, the direction of the outer member 60) is set correctly, and the resin lower mold pin corresponding to each of the holes 63a. The first molded body 100 cannot be accommodated in the cavity (concave portion) of the lower mold 401 unless the respective 401b is inserted. Therefore, even when the through-hole 61a of the outer member 60 is formed at a deviated position and the first molded body 100 has directionality, the first molded body 100 is set in the resin molding die 400. Work defects (defective installation) can be reliably suppressed.

また、上述したゴム加硫工程の場合と同様に、第１成形体１００を下型４０１にセットした状態では、第２壁部６３の２箇所の孔６３ａそれぞれに樹脂下型ピン４０１ｂが挿入されることで、第１成形体１００の回転を確実に規制することができる。よって、上型４０２を下型４０１に型締めする際には、各樹脂上型ピン４０２ｂを各孔６３ａへ確実に挿入させることができる。   Similarly to the rubber vulcanization process described above, in a state where the first molded body 100 is set in the lower mold 401, the resin lower mold pins 401b are inserted into the two holes 63a of the second wall portion 63, respectively. Thereby, rotation of the 1st molded object 100 can be controlled reliably. Therefore, when the upper die 402 is clamped to the lower die 401, each resin upper die pin 402b can be reliably inserted into each hole 63a.

更に、一対の第２壁部６３のそれぞれの各孔６３ａに樹脂下型ピン４０１ｂ及び樹脂上型ピン４０２ｂがそれぞれ挿通されることで、樹脂成形金型４００のキャビティ内において、外側部材６０を確実に保持できるので、キャビティ内に射出された樹脂材料の射出圧力による外側部材６０の変形を抑制することができる。   Further, the lower resin pin 401b and the upper resin mold pin 402b are inserted into the respective holes 63a of the pair of second wall portions 63, so that the outer member 60 can be reliably secured in the cavity of the resin molding die 400. Therefore, deformation of the outer member 60 due to the injection pressure of the resin material injected into the cavity can be suppressed.

なお、上述したゴム加硫工程の場合と同様に、樹脂下型ピン４０１ｂ及び樹脂上型ピン４０２ｂは、断面円形という簡素な形状に形成されているので、その製造を容易として、樹脂成形金型４００の製品コストの低減を図ることができる。   As in the case of the rubber vulcanization process described above, the resin lower mold pin 401b and the resin upper mold pin 402b are formed in a simple shape having a circular cross section, which facilitates their manufacture, and makes the resin molding mold 400 product costs can be reduced.

ここで、ゴム加硫工程では、外側部材６０の第２壁部６３をゴム下型座部３０１ｃ及びゴム上型座部３０２ｃとで支持する。これらゴム下型座部３０１ｃ及びゴム上型座部３０２ｃの座面は、孔６３ａと同心で第２壁部６３の膨出部よりも直径が小さい円環状なので、第２壁部６３の外縁からはみ出さずその第２壁部６３の板面内に収まる。よって、第２壁部６３を覆う第２壁覆設ゴム５３は、孔６３ａ近傍が部分的に凹設されるのみであり、四隅に凹部が形成されない。   Here, in the rubber vulcanization step, the second wall portion 63 of the outer member 60 is supported by the lower rubber seat portion 301c and the upper rubber seat portion 302c. The seat surfaces of the lower rubber seat portion 301c and the upper rubber seat portion 302c are concentric with the hole 63a and have an annular shape having a smaller diameter than the bulging portion of the second wall portion 63, and therefore, from the outer edge of the second wall portion 63. It does not protrude and fits within the plate surface of the second wall 63. Therefore, the second wall covering rubber 53 covering the second wall portion 63 is only partially recessed near the hole 63a, and no recess is formed at the four corners.

即ち、従来の製造方法では、第２壁部６３の四隅をゴム加硫金型で支持するので、第２壁覆設ゴム５３の四隅にゴム加硫金型の支持部に対応する凹部が形成される。そのため、樹脂成形工程では、樹脂材料のシール性を確保することが困難となるため、樹脂成形金型の構造や形状が複雑化して、製造コストが嵩む。これに対し、本実施の形態における製造方法によれば、第２壁覆設ゴム５３の四隅に凹部がなく、シール性の確保が容易であるので、樹脂成形金型４００の構造や形状を簡素化して、製造コストの低減を図ることができる。   That is, in the conventional manufacturing method, since the four corners of the second wall 63 are supported by the rubber vulcanization mold, the concave portions corresponding to the support portions of the rubber vulcanization mold are formed at the four corners of the second wall covering rubber 53. Is done. For this reason, in the resin molding process, it is difficult to ensure the sealing performance of the resin material, so that the structure and shape of the resin molding die are complicated and the manufacturing cost increases. On the other hand, according to the manufacturing method in the present embodiment, since there are no recesses at the four corners of the second wall covering rubber 53 and it is easy to ensure the sealing performance, the structure and shape of the resin molding die 400 are simplified. Manufacturing cost can be reduced.

また、従来の製造方法のように、第２壁部６３の四隅をゴム加硫型で支持する構造であると、第２壁部６３と基板部６１との間に曲げ加工によるＲ形状がある場合、かかるＲ形状は寸法公差が大きいため、その分、Ｒ形状部を支持するゴム加硫金型側の支持部も寸法公差を大きく設定する必要が生じ、外側部材６０のゴム加硫金型に対する位置精度が低下する。これに対し、本実施の形態における製造方法によれば、第２壁部６３の孔６３ａにゴム下型ピン３０１ｂ等を挿通させる構成であれば、寸法公差を小さくして、ゴム加硫金型３００に対する位置精度の向上を図ることができる。その結果、外側部材６０と内筒部材４０や防振脚部５０との相対位置精度を向上させることができるので、防振装置１の静的および動的な特性の安定化を図ることができる。   Further, when the structure is such that the four corners of the second wall portion 63 are supported by the rubber vulcanization mold as in the conventional manufacturing method, there is an R shape between the second wall portion 63 and the substrate portion 61 by bending. In this case, since the R shape has a large dimensional tolerance, it is necessary to set a large dimensional tolerance for the support portion on the rubber vulcanization mold side that supports the R shape portion. The positional accuracy with respect to is reduced. On the other hand, according to the manufacturing method in the present embodiment, if the rubber lower mold pin 301b or the like is inserted into the hole 63a of the second wall portion 63, the dimensional tolerance is reduced and the rubber vulcanization mold is configured. The positional accuracy with respect to 300 can be improved. As a result, the relative positional accuracy between the outer member 60 and the inner cylindrical member 40 or the vibration isolation leg 50 can be improved, so that the static and dynamic characteristics of the vibration isolation device 1 can be stabilized. .

ここで、ゴム加硫工程で成形される第１成形体１００には、外側部材６０の第１壁部６２と第２壁部６３とで取り囲まれた部分（即ち、第１壁覆設ゴム５２と第２壁覆設ゴム５３とに囲まれた部分）に空間Ｓが形成される。樹脂成形工程において樹脂材料が樹脂成形金型のキャビティ内に注入されると、その樹脂材料が空間Ｓに充填される。その結果、ブラケット部材３０の一部が空間Ｓに内嵌された状態に第１成形体１００がブラケット部材３０にインサート成形される。   Here, the first molded body 100 molded by the rubber vulcanization process includes a portion surrounded by the first wall portion 62 and the second wall portion 63 of the outer member 60 (that is, the first wall covering rubber 52). And a portion surrounded by the second wall covering rubber 53). When the resin material is injected into the cavity of the resin molding die in the resin molding step, the resin material is filled in the space S. As a result, the first molded body 100 is insert-molded into the bracket member 30 in a state where a part of the bracket member 30 is fitted in the space S.

この場合、外側部材６０の基板部６１に貫通孔６１ａが貫通形成されているので、樹脂成形工程において、樹脂成形金型のキャビティ内に注入された樹脂材料の注入（射出）圧力を、貫通孔６１ａを通じて、防振脚部５０へ作用させることができる。これにより、防振脚部５０に予圧縮を付与することができるので、耐久性の優れた防振部材５０を製造することができる。   In this case, since the through hole 61a is formed through the substrate portion 61 of the outer member 60, the injection (injection) pressure of the resin material injected into the cavity of the resin molding die is used as the through hole in the resin molding step. It can be made to act on the vibration isolation leg part 50 through 61a. Thereby, since pre-compression can be provided to the vibration-proof leg part 50, the vibration-proof member 50 excellent in durability can be manufactured.

また、樹脂材料の注入圧力を変更することで、防振脚部５０に付与される予圧縮量を変化させることができるので、防振部材１を製造する際に、防振脚部５０のばね特性を調整することができる。即ち、防振脚部５０の特性をゴム状弾性体の特性（例えば、ゴム硬度）を変更することで調整する場合、そのゴム硬度のロット毎のばらつきが大きいため、特性の微調整が困難である。これに対し、樹脂材料の注入（射出）圧力は、射出成形機の設定により高精度か容易に調整できるので、予圧縮量の変更による防振脚部５０のばね特性の調整を確実に行うことができる。   Moreover, since the amount of pre-compression applied to the vibration isolation leg 50 can be changed by changing the injection pressure of the resin material, the spring of the vibration isolation leg 50 is manufactured when the vibration isolation member 1 is manufactured. Characteristics can be adjusted. That is, when adjusting the characteristics of the anti-vibration legs 50 by changing the characteristics (for example, rubber hardness) of the rubber-like elastic body, fine adjustment of the characteristics is difficult because the rubber hardness varies widely from lot to lot. is there. On the other hand, since the injection (injection) pressure of the resin material can be adjusted with high accuracy or easily by setting the injection molding machine, the adjustment of the spring characteristics of the vibration isolation leg 50 by changing the pre-compression amount is surely performed. Can do.

また、例えば、かかる樹脂材料の注入（射出）圧力を高めることで、空間Ｓに充填された樹脂材料を、貫通孔６１ａを通じて、防振脚部５０側へ押し込み、かかる樹脂材料が貫通孔６１ａを貫通しつつ防振脚部５０に嵌り込んだ内嵌状態を形成することができる（但し、後述する図１１及び図１２では、樹脂材料の注入圧力が低い場合の成形状態が図示されている）。よって、このような内嵌状態を形成した場合には、ブラケット部材３０からの外側部材６０の抜け出しをより確実に防止し得る防振装置１を製造することができる。   Further, for example, by increasing the injection (injection) pressure of the resin material, the resin material filled in the space S is pushed through the through hole 61a toward the vibration isolation leg 50, and the resin material enters the through hole 61a. It is possible to form an internal fitting state that penetrates the vibration-proof leg portion 50 while penetrating (however, in FIGS. 11 and 12 to be described later, a molding state when the injection pressure of the resin material is low is illustrated). . Therefore, when such an internal fitting state is formed, the vibration isolator 1 that can more reliably prevent the outer member 60 from coming out of the bracket member 30 can be manufactured.

以上のように構成された防振装置１の詳細構成について、図１１及び図１２を参照して説明する。図１１及び図１２は、防振装置１の部分断面図であり、それぞれ図７（ａ）及び図７（ｂ）に示す断面に対応する。なお、図１１では、防振装置１が車両へ組み付けられた際に第２壁覆設ゴム５３に対向配置される相手部品５００が図示されている。また、図１２では、防振装置１の一部が部分的に拡大図示され、かかる拡大部分では、図面を簡素化するために、ブラケット部材３０及び各覆設ゴム５１，５２の断面線の図示が省略されている。   A detailed configuration of the vibration isolator 1 configured as described above will be described with reference to FIGS. 11 and 12. 11 and 12 are partial cross-sectional views of the vibration isolator 1, and correspond to the cross-sections shown in FIGS. 7 (a) and 7 (b), respectively. Note that FIG. 11 illustrates a counterpart component 500 that is disposed to face the second wall covering rubber 53 when the vibration isolator 1 is assembled to a vehicle. In FIG. 12, a part of the vibration isolator 1 is partially enlarged, and in the enlarged part, the cross-sectional lines of the bracket member 30 and the covering rubbers 51 and 52 are shown in order to simplify the drawing. Is omitted.

図１１及び図１２に示すように、防振脚部５０の他端側（図１１及び図１２左側）が加基板部６１の背面側に硫接着され、その基板部６１の外縁からは、ブラケット部材３０へ向けて（即ち、防振脚部５０と反対側へ向けて）、一対の第１壁部６２が末広がり状に延設されると共に、一対の第２壁部６３が平行を保ちつつ延設され、これら第１壁部６２及び第２壁部６３が周方向に（即ち、基板部６１の外縁に沿って）連結されつつ、ブラケット部材３０に埋設されている。   As shown in FIGS. 11 and 12, the other end side (left side of FIGS. 11 and 12) of the vibration isolating leg portion 50 is glued to the back side of the additional board portion 61, and from the outer edge of the board portion 61, a bracket is attached. A pair of first wall portions 62 are extended toward the member 30 (that is, toward the side opposite to the anti-vibration legs 50), and the pair of second wall portions 63 are kept parallel to each other. The first wall portion 62 and the second wall portion 63 are extended and are embedded in the bracket member 30 while being connected in the circumferential direction (that is, along the outer edge of the substrate portion 61).

よって、ブラケット部材３０に対する外側部材６０の車両左右方向（矢印Ｌ，Ｒ方向、図１１上下方向）の移動については、一対の第２壁部６３とそれら一対の第２壁部６３の対向間に内嵌されたブラケット部材３０の被内嵌部分との係合により、規制することができる。   Therefore, regarding the movement of the outer member 60 in the left-right direction of the vehicle with respect to the bracket member 30 (arrow L, R direction, vertical direction in FIG. 11), between the pair of second wall portions 63 and the pair of second wall portions 63. It can regulate by engagement with the fitted part of the bracket member 30 fitted inside.

また、ブラケット部材３０に対する外側部材６０の車両上下方向（矢印Ｕ，Ｄ方向、図１２上下方向）の移動については、一対の第１壁部６２とそれら一対の第１壁部６２の対向間に内嵌されたブラケット部材３０の被内嵌部分との係合、及び、一対の第１壁部６２とそれら一対の第１壁部６２を狭持するブラケット部材３０の狭持部分との係合により、規制することができる。   Further, regarding the movement of the outer member 60 with respect to the bracket member 30 in the vehicle vertical direction (arrow U, D direction, vertical direction in FIG. 12), the pair of first wall portions 62 and the pair of first wall portions 62 are opposed to each other. Engagement with the internally fitted portion of the bracket member 30 that is internally fitted, and engagement between the pair of first wall portions 62 and the holding portion of the bracket member 30 that holds the pair of first wall portions 62 Can be regulated.

更に、ブラケット部材３０に対する外側部材６０の車両前後方向（矢印Ｆ，Ｂ方向、図１２左右方向）であって、ブラケット部材３０から抜け出る方向（図１２右方向）への外側部材６０の移動については、一対の第１壁部６２とそれら一対の第１壁部６２の外面側に突出するブラケット部材３０の突出部分（即ち、図１２において範囲Ｌで示す部分）との係合により、規制することができる。   Further, regarding the movement of the outer member 60 in the vehicle front-rear direction (arrow F, B direction, left-right direction in FIG. 12) of the outer member 60 with respect to the bracket member 30 and in the direction of exiting from the bracket member 30 (right direction in FIG. 12). And restricting by engagement between the pair of first wall portions 62 and the protruding portion of the bracket member 30 protruding to the outer surface side of the pair of first wall portions 62 (that is, the portion indicated by the range L in FIG. 12). Can do.

このように、外側部材６０とブラケット部材３０との車両前後方向における係合は、外側部材６０の一対の第１壁部６２をブラケット部材３０に埋設させることで達成する構造であるので、外側部材６０を係合するためにブラケット部材３０を防振脚部５０へ向けて張り出させる必要がなく、従来品のようにアンダーカット形状が形成されることを抑制することができる。よって、ブラケット部材３０を成形する樹脂成形金型４００の構造の簡素化を図ることができる。   As described above, since the engagement of the outer member 60 and the bracket member 30 in the vehicle front-rear direction is a structure achieved by embedding the pair of first wall portions 62 of the outer member 60 in the bracket member 30, the outer member It is not necessary to project the bracket member 30 toward the antivibration leg portion 50 in order to engage 60, and it is possible to suppress the formation of an undercut shape as in the conventional product. Therefore, the structure of the resin molding die 400 for molding the bracket member 30 can be simplified.

また、防振装置１は、ブラケット部材３０に対する外側部材６０の移動を各方向において規制することができるので、内筒部材４０がいずれの方向へ変位しても、外側部材６０とブラケット部材３０との係合状態を保ち、かかる外側部材６０がブラケット部材３０から抜け出ることを防止することができる。   Moreover, since the vibration isolator 1 can regulate the movement of the outer member 60 with respect to the bracket member 30 in each direction, the outer member 60 and the bracket member 30 can be moved regardless of which direction the inner cylinder member 40 is displaced. Thus, the outer member 60 can be prevented from coming out of the bracket member 30.

ここで、外側部材６０は、ブラケット部材３０に対する移動を各方向において規制可能としつつ、その製造を簡易に行うことができる。即ち、外側部材６０は、板状の基板部６１の外縁から板状の第１及び第２壁部６２，６３が一方へ向けて延設される形状（いわゆる容器形状）に形成されているので、１枚の平らな素板にパンチとダイとを用いてプレス加工機により絞り加工を施すことで、簡易に製造することができる。従って、外側部材６０の製造コストを低減して、その分、防振装置１全体としての製品コストを低減することができる。   Here, the outer member 60 can be easily manufactured while the movement with respect to the bracket member 30 can be restricted in each direction. That is, the outer member 60 is formed in a shape (so-called container shape) in which the plate-like first and second wall portions 62 and 63 extend from the outer edge of the plate-like substrate portion 61 toward one side. A single flat base plate can be easily manufactured by drawing with a press machine using a punch and a die. Therefore, the manufacturing cost of the outer member 60 can be reduced, and the product cost of the vibration isolator 1 as a whole can be reduced accordingly.

この場合、第１壁部６２と第２壁部６３とは、その端部同士が連結される、即ち、周方向に連続して形成されているので、それら各壁部６２，６３の曲げ方向（基板部６１に対して揺動する方向）の強度を高めることができる。よって、その分、外側部材６０の板厚を小さくすることができるので、材料コストの低減を図ることができると共に、軽量化を図ることができる。   In this case, since the end portions of the first wall portion 62 and the second wall portion 63 are connected to each other, that is, formed continuously in the circumferential direction, the bending direction of each of the wall portions 62 and 63 is determined. The strength in the direction of swinging with respect to the substrate unit 61 can be increased. Therefore, the plate thickness of the outer member 60 can be reduced correspondingly, so that the material cost can be reduced and the weight can be reduced.

また、第２壁部６３を覆う第２壁覆設ゴム５３は、ブラケット部材３０の外面から相手部品５００側へ突出して形成されているので、かかる第２壁覆設ゴム５３を、相手部品５００に当接してその変位を規制するストッパ部として利用できる。この場合、第２壁覆設ゴム５３には、一対が平行配置される平板状の第２壁部が埋設されているので、相手部品５００が当接される際の衝撃力を第２壁部６３で受け止めて、ブラケット部材３０の負担を軽減することができる。これにより、ブラケット部材３０が樹脂材料から形成される場合であっても、その耐久性の向上を図ることができる。   Further, since the second wall covering rubber 53 covering the second wall portion 63 is formed so as to protrude from the outer surface of the bracket member 30 toward the counterpart component 500, the second wall covering rubber 53 is used as the counterpart component 500. It can be used as a stopper portion that abuts against and restricts the displacement. In this case, since the second wall covering rubber 53 is embedded with a flat plate-like second wall portion in which a pair is arranged in parallel, the impact force when the mating component 500 is brought into contact with the second wall portion is reduced. The load on the bracket member 30 can be reduced. Thereby, even if it is a case where the bracket member 30 is formed from a resin material, the improvement of the durability can be aimed at.

更に、第２壁部６３は、上述したように、その端部が第１壁部６２の端部と連結され、曲げ方向の強度が高められているので、相手部品５００が当接される際の衝撃力を強固に受け止めることができると共に、外側部材６０自体だけでなくブラケット部材３０の耐久性も向上させることができる。   Further, as described above, the end of the second wall 63 is connected to the end of the first wall 62 and the strength in the bending direction is increased. The impact force of the bracket member 30 as well as the outer member 60 itself can be improved.

次いで、図１３を参照して、第２及び第３実施の形態について説明する。図１３（ａ）は、第２実施の形態における外側部材２０６０の断面図であり、図１３（ｂ）は、第３実施の形態における外側部材３０６０の断面図である。なお、図１３（ａ）及び図１３（ｂ）は、図３（ａ）のＩＶａ−ＩＶａ線における外側部材の断面図に対応する。   Next, with reference to FIG. 13, the second and third embodiments will be described. FIG. 13A is a cross-sectional view of the outer member 2060 in the second embodiment, and FIG. 13B is a cross-sectional view of the outer member 3060 in the third embodiment. 13A and 13B correspond to cross-sectional views of the outer member taken along the line IVa-IVa in FIG.

第１実施の形態では、外側部材６０の第２壁部６３に正面視円形の孔６３ａが穿設される場合を説明したが、第２及び第３実施の形態における外側部材２０６０，３０６０の第２壁部２０６３，３０６３には、正面視長円形および正面視台形の孔２０６３ａ，３０６３ａが穿設されている。なお、上述した第１実施の形態と同一の部分には同一の符号を付して、その説明は省略する。   In the first embodiment, the case where the second wall 63 of the outer member 60 has the circular hole 63a in front view has been described. However, the outer members 2060 and 3060 in the second and third embodiments The two walls 2063 and 3063 are formed with holes 2063a and 3063a having an oblong shape and a trapezoidal shape when viewed from the front. In addition, the same code | symbol is attached | subjected to the part same as 1st Embodiment mentioned above, and the description is abbreviate | omitted.

図１３（ａ）及び図１３（ｂ）に示すように、第２壁部２０６３，３０６３は、第１実施の形態における第２壁部６３に対応し、一対が平行を保ちつつ対向配置される平板状の部位である。第２壁部２０６３には、正面視長円形の孔２０６３ａが各第２壁部２０６３に対して１箇所ずつ合計２箇所に穿設される。同様に、第２壁部３０６３には、正面視台形の孔３０６３ａが各第２壁部３０６３に対して１箇所ずつ合計２箇所に穿設される。   As shown in FIGS. 13A and 13B, the second wall portions 2063 and 3063 correspond to the second wall portion 63 in the first embodiment, and a pair of the second wall portions 2063 and 3063 are arranged to face each other while being kept parallel. It is a flat part. The second wall portion 2063 is formed with two holes 2063a that are oblong in front view, one for each second wall portion 2063 in total. Similarly, a trapezoidal hole 3063a in front view is formed in the second wall portion 3063 at a total of two locations, one for each second wall portion 3063.

これら各孔２０６３ａ，３０６３ａは、図１３（ａ）及び図１３（ｂ）に示すように、一対の第１壁部６２の内の一方の第１壁部６２側（図１３（ａ）及び図１３（ｂ）の左側）に偏った位置に配置されている。また、第２壁部２０６３，３０６３には、膨出部が外縁から膨出形成されており、この膨出部によって各孔２０６３ａ，３０６３ａが取り囲まれている。   As shown in FIGS. 13A and 13B, each of the holes 2063a and 3063a has a first wall 62 side of the pair of first wall portions 62 (see FIGS. 13A and 13B). 13 (b) on the left side). Further, the second wall portions 2063 and 3063 are formed with a bulging portion bulging from the outer edge, and each of the holes 2063a and 3063a is surrounded by the bulging portion.

ここで、一対の第２壁部２０６３及び一対の第２壁部３０６３は、孔２０６３ａ，３０６３の配置も含め、それぞれ互いに同じ形状に形成されている。そのため、外側部材２０６０，３０６０は、第１実施の形態の場合と同様に、防振装置１（第１成形体１００）の左右いずれにも共通に使用することができる。   Here, the pair of second wall portions 2063 and the pair of second wall portions 3063 are formed in the same shape, including the arrangement of the holes 2063a and 3063. Therefore, the outer members 2060 and 3060 can be used in common on both the left and right sides of the vibration isolator 1 (first molded body 100) as in the case of the first embodiment.

なお、ゴム加硫金型および樹脂成形金型は、ゴム下型ピン、ゴム上型ピン、樹脂下型ピン及び樹脂上型ピンの外形が各孔２０６３ａ，３０６３ａに対応する形状（即ち、断面長円形または断面台形）に形成されており、これら各ピンが各孔２０６３ａ，３０６３ａに挿入されることで、外側部材２０６０，３０６０が所定位置に位置決めされる。   It should be noted that the rubber vulcanizing mold and the resin molding mold are shaped so that the outer shapes of the lower rubber pin, the upper rubber mold pin, the lower resin mold pin and the upper resin mold pin correspond to the holes 2063a and 3063a (that is, the cross-sectional length The outer members 2060 and 3060 are positioned at predetermined positions by inserting the pins into the holes 2063a and 3063a.

また、ゴム下型座部、ゴム上型座部、樹脂下型座部および樹脂下型座部は、各ピンよりも大きな外形であって、かつ、膨出部よりも小さな外形（即ち、第２壁部２０６３，３０６３の外面内に収まる形状）に形成され、各ピンとの間に形成された平坦面状の段差面が第２壁部２０６３，３０６３の外面に当接して支持する座面とされている。   The rubber lower mold seat, the rubber upper mold seat, the resin lower mold seat, and the resin lower mold seat have an outer shape larger than each pin and smaller than the bulge portion (that is, the first mold seat). A flat stepped surface formed between each pin and the outer surface of the second wall portions 2063 and 3063 and supporting the outer surface of the second wall portions 2063 and 3063. Has been.

よって、第２及び第３実施の形態においても、第１実施の形態の場合と同様に、外側部材２０６０，３０６０をゴム加硫金型へセットする際の作業不良（設置不良）を抑制することができる。また、外側部材２０６０，３０６０を下型にセットした状態では、かかる外側部材２０６０，３０６０の回転を規制することができるので、上型を下型に型締めする際に、各ゴム上型ピンを各孔２０６３ａ，３０６３ａへ確実に挿入させることができる。   Therefore, also in the second and third embodiments, as in the case of the first embodiment, it is possible to suppress the work failure (setting failure) when setting the outer members 2060 and 3060 to the rubber vulcanization mold. Can do. Further, in a state where the outer members 2060 and 3060 are set in the lower mold, the rotation of the outer members 2060 and 3060 can be restricted. Therefore, when clamping the upper mold to the lower mold, The holes 2063a and 3063a can be reliably inserted.

また、第１実施の形態における場合と同様に、一対の第２壁部２０６３，３０６３のそれぞれの各孔２０６３ａ，３０６３ａに各ピンがそれぞれ挿通されることで、ゴム状弾性体を介して作用する加硫圧力による外側部材２０６０，３０６０の変形を抑制することができる。   Similarly to the case of the first embodiment, each pin is inserted into each hole 2063a, 3063a of the pair of second wall portions 2063, 3063, thereby acting via a rubber-like elastic body. Deformation of the outer members 2060 and 3060 due to the vulcanization pressure can be suppressed.

更に、第１実施の形態の場合と同様に、第２壁覆設ゴムの四隅に凹部を形成せずに第１成形体を形成することができるので、樹脂成形工程におけるシール性の確保を容易とすることができる。よって、樹脂成形金型の構造や形状を簡素化して、その製造コストの低減を図ることができる。   Further, as in the case of the first embodiment, since the first molded body can be formed without forming the recesses at the four corners of the second wall covering rubber, it is easy to ensure the sealing performance in the resin molding process. It can be. Therefore, the structure and shape of the resin molding die can be simplified, and the manufacturing cost can be reduced.

また、第１実施の形態の場合と同様に、外側部材２０６０，３０６０の各孔２０６３ａ，３０６３ａを各ピンにより係止する金型構造とすることで、四隅を支持する構造の場合と比較して、外側部材２０６０，３０６０のゴム加硫金型に対する位置精度を向上させることができ、内筒部材４０や防振脚部５０との相対位置精度を向上させることができるので、防振装置の静的および動的な特性の安定化を図ることができる。   Further, as in the case of the first embodiment, the holes 2063a and 3063a of the outer members 2060 and 3060 are formed by a mold structure that is locked by the pins, so that it is compared with the structure that supports the four corners. Further, the positional accuracy of the outer members 2060 and 3060 with respect to the rubber vulcanizing mold can be improved, and the relative positional accuracy with respect to the inner cylinder member 40 and the anti-vibration legs 50 can be improved. Stabilization of dynamic and dynamic characteristics can be achieved.

以上、実施の形態に基づき本発明を説明したが、本発明は上記実施の形態に何ら限定されるものではなく、本発明の趣旨を逸脱しない範囲内で種々の改良変形が可能であることは容易に推察できるものである。   The present invention has been described above based on the embodiments. However, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. It can be easily guessed.

上記各実施の形態で挙げた数値は一例であり、他の数値を採用することは当然可能である。例えば、上記第１実施の形態では、孔６３ａを一対の第２壁部６３の合計４箇所に穿設する場合を説明したが、合計３箇所以下であっても良く、或いは、合計５箇所以上であっても良い。例えば、一対の第２壁部６３の一方には２箇所に、他方には１箇所に穿設する構成でも良い。最小の配設個数により、外側部材６０のゴム加硫工程における回転および倒れを確実に防止できるからである。第２及び第３実施の形態についても同様であり、各孔２０６３ａ，３０６３ａの配設個数は任意に設定することができる。   The numerical values given in the above embodiments are merely examples, and other numerical values can naturally be adopted. For example, in the first embodiment, the case where the holes 63a are formed in a total of four locations of the pair of second wall portions 63 has been described. However, the total number may be three or less, or a total of five or more locations. It may be. For example, a configuration in which one of the pair of second wall portions 63 is drilled in two places and the other in one place may be employed. This is because the minimum arrangement number can reliably prevent the outer member 60 from rotating and falling in the rubber vulcanization process. The same applies to the second and third embodiments, and the number of holes 2063a and 3063a can be arbitrarily set.

なお、上記各実施の形態のように、一対の第２壁部６３，２０６３，３０６３のそれぞれに形成する孔６３ａ，２０６３ａ，３０６３ａの配設個数を同数とすることで、絞り加工や穴あけ加工を対称に行い得るようにして、その加工精度の向上を図ることができる。   As in the above embodiments, the number of holes 63a, 2063a, 3063a formed in each of the pair of second wall parts 63, 2063, 3063 is the same, so that drawing and drilling can be performed. The processing accuracy can be improved so that the processing can be performed symmetrically.

上記各実施の形態では、外側部材６０，２０６０，３０６０を、１枚の平らな素板からプレス加工機を用いた絞り加工によりプレス成形する場合を説明したが、必ずしもこれに限られるものではなく、他の成形方法を採用することは当然可能である。   In each of the above-described embodiments, the case where the outer members 60, 2060, 3060 are press-molded from one flat base plate by drawing using a press machine is not necessarily limited thereto. Of course, it is possible to adopt other molding methods.

なお、他の成形方法としては、例えば、複数の板材料を溶接固定して成形する方法や直方体の素材から切削可能による削り出しにより成形する方法などが例示される。この場合、外側部材は、上記各実施の形態のように、容器形状である必要はない。例えば、先端へ向かうほど末広がりとなる（即ち、先端へ向かうほど断面積が大きくなる）棒状体の基部を基板部６１の正面（防振脚部５０が連結される背面の反対側）に固着（例えば、溶接固定）し、かかる棒状体をブラケット部材３０に埋設しても良い。これによっても、ブラケット部材３０に対する外側部材の各方向への移動を規制して、その抜け出しを防止することができる。   Examples of other forming methods include a method of forming a plurality of plate materials by welding and fixing, a method of forming by cutting out from a rectangular parallelepiped material, and the like. In this case, the outer member does not need to have a container shape as in the above embodiments. For example, the base of the rod-shaped body that becomes wider toward the tip (that is, the cross-sectional area becomes larger toward the tip) is fixed to the front surface of the substrate 61 (opposite to the back surface to which the antivibration legs 50 are connected) ( For example, the rod-shaped body may be embedded in the bracket member 30 by welding. Also by this, the movement of the outer member in each direction with respect to the bracket member 30 can be restricted, and the removal thereof can be prevented.

また、上記各実施の形態では、対向する一対の第１壁部６２の全体が基板部６１から離間するに従って末広がり状に延設される（即ち、一対の第１壁部６２の全体がその対向間隔を拡大させる）場合を説明したが、必ずしもこれに限られるものではなく、一対の第１壁部６２の少なくとも一部がブラケット部材３０に係合可能であれば良い。なお、係合可能とは、第１壁部６２がブラケット部材３０内から抜き取られる方向へ外側部材６０が変位する場合に、第１壁部６２の抜き取り方向への移動がブラケット部材３０の樹脂材料により規制されることを意味する。従って、例えば、一対の第１壁部６２は、基板部６１側（図４（ａ）右側）の部分が互いに平行に形成され、残りの部分（基板部６１と反対側の部分、図４（ａ）左側）のみが末広がり状（対向間隔が漸次大きくなる形状）に形成されていても良い。或いは、一対の第１壁部６２は、互いに平行に形成され第２壁部６３と同じ高さ位置まで延設される部位と、その部位の延設端（図４（ａ）左側端）から外方または内方へ向けて折り返されるフランジ状の部位とを有して形成されていても良い。いずれの形状であっても、ブラケット部材３０と係合可能になるからである。   Further, in each of the above-described embodiments, the entire pair of opposing first wall portions 62 are extended in a divergent shape as they are separated from the substrate portion 61 (that is, the entire pair of first wall portions 62 are opposed to each other). However, the present invention is not necessarily limited to this, and it is sufficient that at least a part of the pair of first wall portions 62 can be engaged with the bracket member 30. Note that “engageable” means that when the outer member 60 is displaced in the direction in which the first wall 62 is extracted from the bracket member 30, the movement of the first wall 62 in the extraction direction is the resin material of the bracket member 30. It means that it is regulated by. Therefore, for example, in the pair of first wall portions 62, the portions on the substrate portion 61 side (right side in FIG. 4A) are formed in parallel with each other, and the remaining portions (portions opposite to the substrate portion 61, FIG. a) Only the left side) may be formed in a divergent shape (a shape in which the facing interval gradually increases). Alternatively, the pair of first wall portions 62 are formed in parallel to each other and extended from the same height position as the second wall portion 63 and the extended end of the portion (the left end in FIG. 4A). It may be formed having a flange-like portion that is folded outward or inward. This is because any shape can be engaged with the bracket member 30.

また、上記各実施の形態では、一対の第１壁部６２と一対の第２壁部６３との端部同士が連結される（周方向に連続して形成される）場合を説明したが、必ずしもこれに限られるものではなく、これら第１壁部６２及び第２壁部６３の端部同士の一部または全部を連結せずに形成することは当然可能である。   In each of the above embodiments, the case where the ends of the pair of first wall portions 62 and the pair of second wall portions 63 are connected to each other (formed continuously in the circumferential direction) has been described. The present invention is not necessarily limited to this, and it is naturally possible to form the first wall portion 62 and the second wall portion 63 without connecting part or all of the end portions thereof.

上記各実施の形態では、基板部６１に貫通孔６１ａを貫通形成する場合を説明したが、必ずしもこれに限られるものではなく、かかる貫通孔６１ａの形成を省略しても良い。また、貫通孔６１ａの形状は、正面視矩形状である必要はなく、円形や楕円形などの曲線形状であっても良く、或いは、三角形や五角形以上の多角形であっても良い。また、その配設個数も任意の個数を設定できる。   In each of the above embodiments, the case where the through hole 61a is formed through the substrate 61 has been described. However, the present invention is not necessarily limited to this, and the formation of the through hole 61a may be omitted. The shape of the through hole 61a does not have to be a rectangular shape when viewed from the front, and may be a curved shape such as a circle or an ellipse, or may be a triangle or a polygon more than a pentagon. Moreover, the arrangement | positioning number can also set arbitrary numbers.

１ 防振装置
３０ ブラケット部材
３１ 内挿孔
４０ 内筒部材
５０ 防振脚部
５１ 基板覆設ゴム（覆設ゴム部の一部）
５２ 第１壁覆説ゴム（覆設ゴム部の一部）
５３ 第２壁覆説ゴム（覆設ゴム部の一部、第２壁部を覆う覆設ゴム部）
６０，２０６０，３０６０ 外側部材
６１ 基板部
６１ａ 貫通孔
６２ 第１壁部（延設壁部の一部）
６３，２０６３，３０６３ 第２壁部（延設壁部の一部）
６３ａ 孔（挿通孔部の一部）
２０６３ａ，３０６３ａ 孔（挿通後部）
１００ 第１成形体
３００ ゴム加硫金型
３０１ｂ ゴム下型ピン（ゴム金型挿通部の一部、挿通ピン）
３０２ｂ ゴム上型ピン（ゴム金型挿通部の一部、挿通ピン）
４００ 樹脂成形金型
４０１ｂ 樹脂下型ピン（樹脂金型挿通部の一部、挿通ピン）
４０２ｂ 樹脂上型ピン（樹脂金型挿通部の一部、挿通ピン）
Ｓ 空間 DESCRIPTION OF SYMBOLS 1 Anti-vibration apparatus 30 Bracket member 31 Inner hole 40 Inner cylinder member 50 Anti-vibration leg part 51 Substrate covering rubber (a part of covering rubber part)
52 1st wall cover rubber (part of cover rubber part)
53 Second wall covering rubber (part of the covering rubber part, covering rubber part covering the second wall part)
60, 2060, 3060 Outer member 61 Substrate part 61a Through hole 62 First wall part (part of extended wall part)
63,2063,3063 2nd wall part (a part of extension wall part)
63a hole (part of insertion hole)
2063a, 3063a hole (rear part of insertion)
100 First molded body 300 Rubber vulcanization mold 301b Rubber lower mold pin (part of rubber mold insertion part, insertion pin)
302b Rubber upper mold pin (part of rubber mold insertion part, insertion pin)
400 resin molding die 401b resin lower die pin (part of resin die insertion part, insertion pin)
402b Resin upper mold pin (part of resin mold insertion part, insertion pin)
S space

Claims (4)

振動発生体側または車体側の一方に取着される筒状の内筒部材と、前記内筒部材が内挿配置される内挿孔を有し樹脂材料からなると共に前記振動発生体側または車体側の他方に取着されるブラケット部材と、前記内筒部材の外周面に一端側が連結されると共に前記内挿孔の内周面に他端側が連結されゴム状弾性体からなる一対の防振脚部と、を備えた防振装置において、
金属材料からなり、前記一対の防振脚部の他端側がそれぞれ加硫接着されると共に、前記ブラケット部材にそれぞれ埋設された部位が前記ブラケット部材に係合される一対の外側部材を備え、前記外側部材と前記ブラケット部材との係合により、前記防振脚部の他端側が前記挿通孔の内周側に連結されることを特徴とする防振装置。 A cylindrical inner cylinder member attached to one of the vibration generator side or the vehicle body side, and an insertion hole into which the inner cylinder member is inserted and arranged, are made of a resin material, and are arranged on the vibration generator side or the vehicle body side. A pair of anti-vibration legs made of a rubber-like elastic body having one end connected to the outer peripheral surface of the inner cylinder member and the other end connected to the inner peripheral surface of the insertion hole. In a vibration isolator equipped with
It is made of a metal material, and the other end sides of the pair of vibration-proof legs are each vulcanized and bonded, and each of the portions embedded in the bracket member includes a pair of outer members engaged with the bracket member, The anti-vibration device is characterized in that the other end side of the anti-vibration leg portion is connected to the inner peripheral side of the insertion hole by the engagement between the outer member and the bracket member. 前記外側部材は、前記防振脚部の他端側が加硫接着される板状の基板部と、前記基板部の外縁から前記ブラケット部材へ向けて延設されると共に周方向に連続して形成され少なくとも対向する２箇所が前記ブラケット部材に係合可能に埋設される板状の延設壁部と、を備え、前記延設壁部の内周側に前記ブラケット部材の一部が内嵌されていることを特徴とする請求項１記載の防振装置。   The outer member includes a plate-like substrate portion to which the other end side of the vibration isolation leg portion is vulcanized and bonded, and extends from the outer edge of the substrate portion toward the bracket member and is continuously formed in the circumferential direction. And at least two opposing plate-like extending wall portions embedded so as to be engageable with the bracket member, and a part of the bracket member is internally fitted on the inner peripheral side of the extending wall portion. The vibration isolator according to claim 1, wherein 前記ブラケット部材は、前記外側部材及び前記外側部材に加硫接着された防振脚部を設置した樹脂成形金型内に樹脂材料を注入するインサート成形により形成されるものであり、
前記外側部材は、前記基板部に貫通孔が貫通形成されていることを特徴とする請求項２記載の防振装置。 The bracket member is formed by insert molding in which a resin material is injected into a resin molding die in which an anti-vibration leg portion vulcanized and bonded to the outer member and the outer member is installed,
The vibration isolation device according to claim 2, wherein the outer member has a through hole formed in the substrate portion. 前記外側部材の外面を覆うと共に前記防振脚部に連なるゴム状弾性体からなる覆設ゴム部を備え、
前記外側部材の延設壁部は、互いに対向して配置されると共に前記ブラケット部材にそれぞれ少なくとも一部が埋設される一対の第１壁部と、前記一対の第１壁部の端部同士を連結すると共に前記ブラケット部材を挟んで互いに対向して配置され平板状に形成される一対の第２壁部とを備え、
前記第２壁部を覆う覆設ゴム部が前記ブラケット部材の外面から突出されていることを特徴とする請求項２又は３に記載の防振装装置。 A covering rubber part made of a rubber-like elastic body covering the outer surface of the outer member and continuing to the vibration-proof leg part
The extending wall portions of the outer member are disposed so as to face each other, and a pair of first wall portions each of which is at least partially embedded in the bracket member, and ends of the pair of first wall portions. A pair of second wall portions that are connected to each other with the bracket member interposed therebetween and are formed in a flat plate shape,
The anti-vibration device according to claim 2 or 3, wherein a covering rubber portion that covers the second wall portion protrudes from an outer surface of the bracket member.
JP2010065032A 2010-03-19 2010-03-19 Vibration isolator Expired - Fee Related JP5342483B2 (en)

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JP2010065032A JP5342483B2 (en) 2010-03-19 2010-03-19 Vibration isolator
PCT/JP2011/051961 WO2011114784A1 (en) 2010-03-19 2011-01-31 Vibration damping device and method of manufacturing vibration damping device
US13/582,876 US9010739B2 (en) 2010-03-19 2011-01-31 Vibration isolation device and manufacturing method thereof
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09170634A (en) * 1995-12-19 1997-06-30 Tokai Rubber Ind Ltd Cylindrical mount device and manufacture thereof
JPH09273596A (en) * 1996-04-03 1997-10-21 Bridgestone Corp Vibration-proofing device
JPH1082442A (en) * 1996-09-09 1998-03-31 Bridgestone Corp Vibration control device
JPH1163106A (en) * 1997-08-19 1999-03-05 Tokai Rubber Ind Ltd Vibration control support body
JP2007177827A (en) * 2005-12-27 2007-07-12 Tokai Rubber Ind Ltd Vibration isolation device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09170634A (en) * 1995-12-19 1997-06-30 Tokai Rubber Ind Ltd Cylindrical mount device and manufacture thereof
JPH09273596A (en) * 1996-04-03 1997-10-21 Bridgestone Corp Vibration-proofing device
JPH1082442A (en) * 1996-09-09 1998-03-31 Bridgestone Corp Vibration control device
JPH1163106A (en) * 1997-08-19 1999-03-05 Tokai Rubber Ind Ltd Vibration control support body
JP2007177827A (en) * 2005-12-27 2007-07-12 Tokai Rubber Ind Ltd Vibration isolation device

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