JPH09257076A - Cylinderical mount and manufacture thereof - Google Patents
Cylinderical mount and manufacture thereofInfo
- Publication number
- JPH09257076A JPH09257076A JP6431296A JP6431296A JPH09257076A JP H09257076 A JPH09257076 A JP H09257076A JP 6431296 A JP6431296 A JP 6431296A JP 6431296 A JP6431296 A JP 6431296A JP H09257076 A JPH09257076 A JP H09257076A
- Authority
- JP
- Japan
- Prior art keywords
- elastic body
- rubber elastic
- slit
- outer cylinder
- peripheral surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Springs (AREA)
Abstract
Description
【０００１】[0001]
【技術分野】本発明は、各種装置などにおいて防振マウ
ントや防振ブッシュ等として用いられる筒型マウントに
関するものであり、特に、何れも合成樹脂製とされた軸
部材と外筒部材を備えた筒型マウントとその製造方法に
関するものである。TECHNICAL FIELD The present invention relates to a tubular mount used as an antivibration mount, an antivibration bush, or the like in various devices and the like, and in particular, is provided with a shaft member and an outer cylinder member both made of synthetic resin. The present invention relates to a cylindrical mount and a manufacturing method thereof.
【０００２】[0002]
【従来技術】振動伝達系を構成する部材間に介装される
防振連結体乃至は防振支持体の一種として、特公昭５６
−１２７３４号公報等に開示されているように、互いに
所定距離を隔てて配された軸金具と外筒金具をゴム弾性
体によって弾性的に連結すると共に、軸金具と外筒金具
の間を軸方向に貫通して延びるスリットを設けることに
より、軸直角方向のばね特性をチューニングするように
した構造の筒型マウントが知られており、例えば自動車
用エンジンマウント等に用いられている。また、近年で
は、マウントの軽量化や低コスト化等のために、外筒金
具の代わりに合成樹脂製の外筒部材を採用することも検
討されている。2. Description of the Related Art As a type of vibration-proof coupling or vibration-proof support interposed between members constituting a vibration transmission system, Japanese Patent Publication No. 56-56.
As disclosed in Japanese Patent Publication No. 12734, etc., a shaft metal member and an outer cylindrical metal member, which are arranged at a predetermined distance from each other, are elastically connected by a rubber elastic body, and a shaft is provided between the shaft metal member and the outer cylindrical metal member. A cylindrical mount having a structure in which a spring characteristic in a direction perpendicular to an axis is tuned by providing a slit extending through in a direction is known, and is used, for example, in an automobile engine mount. Further, in recent years, in order to reduce the weight and cost of the mount, it has been considered to use an outer cylinder member made of synthetic resin instead of the outer cylinder fitting.
【０００３】ところで、このような筒型マウントにおい
ては、スリットを設けると、ゴム弾性体におけるスリッ
トの周方向端縁部に応力集中が生じ易く、特に、外筒金
具によって変形量が制限されるゴム弾性体の外周部分で
は、荷重入力によってゴム弾性体が変形せしめられた際
に引張応力が集中的に作用し易いために、亀裂等が発生
してゴム弾性体ひいてはマウントの耐久性を十分に確保
することが難しいという問題があった。By providing a slit in such a tubular mount, stress concentration is likely to occur at the circumferential edge of the slit in the rubber elastic body, and in particular, the amount of deformation is limited by the outer tubular metal fitting. At the outer peripheral part of the elastic body, tensile stress tends to act intensively when the rubber elastic body is deformed by load input, so cracks etc. occur and the durability of the rubber elastic body and thus the mount is secured sufficiently. There was a problem that it was difficult to do.
【０００４】そこで、従来では、一般に、ゴム弾性体の
外周面に外筒金具を嵌着せしめた後に、該外筒金具を縮
径加工せしめてゴム弾性体に予圧縮を加えることによ
り、ゴム弾性体における引張応力の発生を軽減乃至は防
止する方策が講じられていた。Therefore, in the past, generally, after the outer cylindrical metal fitting is fitted on the outer peripheral surface of the rubber elastic body, the outer cylindrical metal fitting is reduced in diameter and pre-compressed to the rubber elastic body. Measures have been taken to reduce or prevent the occurrence of tensile stress in the body.
【０００５】ところが、前述の如く、合成樹脂製の外筒
部材を採用した場合には、外筒部材を縮径加工すること
が極めて困難であるために、ゴム弾性体に対して有効な
予圧縮を加えることが難しく、十分なマウント耐久性が
確保され難いという不具合があったのである。However, as described above, when the outer cylinder member made of synthetic resin is adopted, it is extremely difficult to reduce the diameter of the outer cylinder member, so that the pre-compression effective for the rubber elastic body is performed. However, there was a problem in that it was difficult to secure sufficient mount durability.
【０００６】[0006]
【解決課題】ここにおいて、本発明は、上述の如き事情
を背景として為されたものであって、その解決課題とす
るところは、合成樹脂製の外筒部材を採用した場合にお
いて、スリットが形成されたゴム弾性体に対して有効な
予圧縮を加えることの出来る、改良された構造の筒型マ
ウントと、筒型マウントの製造方法を提供することにあ
る。The present invention has been made in view of the circumstances as described above, and a problem to be solved by the present invention is that a slit is formed when an outer cylinder member made of synthetic resin is adopted. An object of the present invention is to provide a cylindrical mount having an improved structure capable of applying effective pre-compression to the rubber elastic body, and a method of manufacturing the cylindrical mount.
【０００７】[0007]
【解決手段】そして、このような課題を解決するため
に、筒型マウントに関する本発明の特徴とするところ
は、軸部材と、該軸部材の外方に所定距離を隔てて配さ
れた外筒部材を、それらの間に介装されたゴム弾性体に
よって連結すると共に、該軸部材と該外筒部材の間を軸
方向に貫通して延びるスリットを設けた筒型マウントに
おいて、前記外筒部材が合成樹脂製とされると共に、該
外筒部材の成形樹脂圧力が前記ゴム弾性体に及ぼされ
て、該ゴム弾性体が、前記スリットの周方向端縁部にお
いて、該スリットの内方に向かって局部的に圧縮変形せ
しめられていることにある。In order to solve such a problem, a feature of the present invention relating to a cylindrical mount is that a shaft member and an outer cylinder arranged outside the shaft member at a predetermined distance. A cylindrical mount, in which members are connected by a rubber elastic body interposed therebetween, and a slit extending axially through between the shaft member and the outer cylinder member is provided. Is made of synthetic resin, and the molding resin pressure of the outer cylinder member is exerted on the rubber elastic body, and the rubber elastic body is directed toward the inside of the slit at the circumferential end edge of the slit. That is, they are locally compressed and deformed.
【０００８】このような本発明に従う構造とされた筒型
マウントにおいては、外筒部材の成形樹脂圧力にてゴム
弾性体が局部的に圧縮変形されることによって、荷重入
力時に引張方向の変形が生ぜしめられ易い、ゴム弾性体
におけるスリットの周方向端部に対して有効な予圧縮が
加えられていることから、ゴム弾性体における引張応力
の発生が軽減乃至は防止されて耐久性の向上が図られ得
るのである。In such a cylindrical mount having the structure according to the present invention, the rubber elastic body is locally compressed and deformed by the molding resin pressure of the outer cylindrical member, so that the deformation in the pulling direction is caused when the load is input. Since effective pre-compression is applied to the circumferential end of the slit in the rubber elastic body, which is likely to occur, generation of tensile stress in the rubber elastic body is reduced or prevented, and durability is improved. It can be achieved.
【０００９】また、これにより、ゴム弾性体に有効な予
圧縮を及ぼしめて優れた耐久性を確保しつつ、外筒部材
の樹脂化が実現されることから、マウントの軽量化およ
び低コスト化が有利に実現され得るのである。Further, as a result, the outer cylinder member is made of resin while effective pre-compression is exerted on the rubber elastic body to ensure excellent durability, so that the weight and cost of the mount can be reduced. Can be advantageously realized.
【００１０】なお、本発明においては、複数のスリット
が形成されること等によって、ゴム弾性体におけるスリ
ットの周方向端縁部が複数ある場合に、それらの全てを
圧縮変形させる必要はなく、特に引張方向の変形が生ぜ
しめられ易い箇所だけを圧縮変形させれば良い。また、
外筒部材が合成樹脂製とされることから、外筒部材を他
部材に取り付けるためのブラケット部を、外筒部材に一
体形成することも可能であり、それによって、部品点数
の削減と製作性の向上が図られ得る。In the present invention, when there are a plurality of circumferential end edges of the slit in the rubber elastic body due to the formation of a plurality of slits, it is not necessary to compress and deform all of them. It suffices to compress and deform only the places where deformation in the tensile direction is likely to occur. Also,
Since the outer cylinder member is made of synthetic resin, it is possible to integrally form a bracket portion for attaching the outer cylinder member to another member, thereby reducing the number of parts and manufacturability. Can be improved.
【００１１】また、筒型マウントに係る本発明の好まし
い態様においては、請求項２に記載されているように、
前記ゴム弾性体における前記スリットの周方向端縁部
が、荷重入力による該ゴム弾性体の変形によって曲率半
径が大きくなる湾曲内周面形状を有しており、前記外筒
部材の成形樹脂圧力が該ゴム弾性体の外周面に及ぼされ
ることによって、かかるゴム弾性体におけるスリットの
周方向端縁部が、該湾曲内周面の曲率半径が小さくなる
方向に圧縮変形せしめられている。Further, in a preferred embodiment of the present invention relating to a cylindrical mount, as described in claim 2,
The circumferential edge portion of the slit in the rubber elastic body has a curved inner peripheral surface shape whose radius of curvature increases due to deformation of the rubber elastic body due to load input, and the molding resin pressure of the outer tubular member is By extending to the outer peripheral surface of the rubber elastic body, the circumferential edge of the slit in the rubber elastic body is compressed and deformed in the direction in which the radius of curvature of the curved inner peripheral surface becomes smaller.
【００１２】このような構造とされた筒型マウントにお
いては、ゴム弾性体におけるスリットの周方向端縁部が
湾曲内周面形状とされていることによって、荷重入力時
に惹起される引張応力が分散されることと、該スリット
の周方向端縁部に対して曲率半径が小さくなる方向の圧
縮変形が加えられていることによって、荷重入力時に惹
起される引張応力が軽減されることとが、相まって、よ
り優れた耐久性の向上効果が発揮されるのである。In the cylindrical mount having such a structure, the circumferential end edge of the slit in the rubber elastic body has a curved inner peripheral surface shape, so that the tensile stress generated when a load is input is dispersed. And that the tensile stress caused at the time of inputting a load is reduced by applying compressive deformation in the direction in which the radius of curvature becomes smaller to the circumferential edge of the slit. , The effect of improving the durability is exhibited.
【００１３】また、筒型マウントに係る本発明の好まし
い態様においては、請求項３に記載されているように、
前記スリットが、前記ゴム弾性体の内部を貫通して形成
されていることにより、かかるゴム弾性体によって、該
スリットの外周側を覆う周壁部が形成されている。In a preferred embodiment of the present invention relating to the cylindrical mount, as described in claim 3,
Since the slit is formed so as to penetrate the inside of the rubber elastic body, a peripheral wall portion that covers the outer peripheral side of the slit is formed by the rubber elastic body.
【００１４】このような構造とされた筒型マウントにお
いては、スリットの周方向端縁部に位置する周壁部の外
周面に、外筒部材の成形樹脂圧力を及ぼして、かかる周
壁部を、スリットの周方向端縁部において部分的にスリ
ットの内方に向かって変形せしめることによって、ゴム
弾性体におけるスリットの周方向端縁部に対して容易に
且つ有利に予圧縮を加えることが出来るのである。In the tubular mount having such a structure, the molding resin pressure of the outer tubular member is exerted on the outer peripheral surface of the peripheral wall portion located at the circumferential end edge of the slit, and the peripheral wall portion is slit. By partially deforming the circumferential edge of the slit toward the inside of the slit, precompression can be easily and advantageously applied to the circumferential edge of the slit in the rubber elastic body. .
【００１５】また、筒型マウントに係る本発明の好まし
い態様においては、請求項４に記載されているように、
前記外筒部材の成形樹脂圧力が前記ゴム弾性体の外周面
に及ぼされて圧縮変形せしめられることにより、前記ス
リットの周方向中央部分において、前記軸部材側と前記
周壁部側が当接せしめられている。In a preferred embodiment of the present invention relating to the cylindrical mount, as described in claim 4,
The molding resin pressure of the outer cylinder member is exerted on the outer peripheral surface of the rubber elastic body and is compressed and deformed, so that the shaft member side and the peripheral wall portion side are brought into contact with each other in the circumferential center portion of the slit. There is.
【００１６】このような構造とされた筒型マウントにお
いては、スリットの周方向中央部分における軸部材側と
周壁部側の対向部間で、軸直角方向のストッパ機構が構
成されると共に、それら軸部材側と周壁部側を外筒部材
の成形樹脂圧力によって当接させることにより、ストッ
パクリアランスの設定自由度を大きく確保することがで
きる。In the cylindrical mount having such a structure, a stopper mechanism in a direction perpendicular to the axis is formed between the shaft member side and the peripheral wall side facing portion in the circumferential center portion of the slit, and the shafts are provided with the stopper mechanism. By bringing the member side and the peripheral wall side into contact with each other by the molding resin pressure of the outer tubular member, a large degree of freedom in setting the stopper clearance can be ensured.
【００１７】さらに、筒型マウントの製造方法に関する
本発明の特徴とするところは、軸部材と、該軸部材の外
方に所定距離を隔てて配された外筒部材が、それらの間
に介装されたゴム弾性体によって連結されると共に、該
軸部材と該外筒部材の間を軸方向に貫通して延びるスリ
ットが設けられた筒型マウントの製造方法であって、前
記外筒部材の成形型に前記ゴム弾性体をセットすると共
に、該ゴム弾性体の前記スリットに中子型を配置せしめ
て、該ゴム弾性体の外周面上に前記外筒部材の成形キャ
ビティを形成する一方、前記ゴム弾性体における前記ス
リットの周方向端縁部に対する前記中子型の当接部分に
逃げ部を設けて、該スリットの周方向端縁部の内周面と
該中子型の外周面との間に逃げ空所を形成せしめた状態
下、前記成形キャビティに樹脂材料を充填して前記外筒
部材を形成すると同時に、該樹脂材料の充填圧を前記ゴ
ム弾性体に及ぼしめて、該ゴム弾性体における前記スリ
ットの周方向端縁部を、前記逃げ空所に入り込ませて前
記スリットの内方に向かって圧縮変形せしめるようにし
たことにある。Further, a feature of the present invention relating to a method of manufacturing a cylindrical mount is that a shaft member and an outer cylinder member arranged at a predetermined distance outside the shaft member are interposed between them. A method for manufacturing a tubular mount, which is connected by a mounted rubber elastic body and is provided with a slit extending axially through between the shaft member and the outer tubular member, the method comprising: While the rubber elastic body is set in the molding die, the core mold is arranged in the slit of the rubber elastic body to form the molding cavity of the outer cylindrical member on the outer peripheral surface of the rubber elastic body, A relief portion is provided in the contact portion of the core die with respect to the circumferential end edge portion of the slit in the rubber elastic body, and the inner peripheral surface of the circumferential end edge portion of the slit and the outer peripheral surface of the core die. With the escape space formed between them, At the same time as filling the tee with a resin material to form the outer cylinder member, a filling pressure of the resin material is exerted on the rubber elastic body so that the circumferential end edge portion of the slit in the rubber elastic body is allowed to escape. The reason is that it is made to enter the void and be compressed and deformed toward the inside of the slit.
【００１８】このような本発明方法に従えば、ゴム弾性
体を、スリットの周方向端縁部において容易に且つ所定
量だけ安定して局部的に圧縮変形せしめることが出来る
のであり、それによって、荷重入力時に引張方向の変形
が生ぜしめられ易い、ゴム弾性体におけるスリットの周
方向端部に対して、有効な予圧縮を効果的に加えること
が出来るのである。According to such a method of the present invention, the rubber elastic body can be locally locally compressed and deformed easily and stably by a predetermined amount at the circumferential edge of the slit. Effective precompression can be effectively applied to the circumferential ends of the slits in the rubber elastic body, which are likely to be deformed in the tensile direction when a load is input.
【００１９】[0019]
【発明の実施の形態・実施例】以下、本発明を更に具体
的に明らかにするために、本発明の実施例について、図
面を参照しつつ、詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.
【００２０】先ず、図１及び図２には、本発明の一実施
例としての自動車用エンジンマウント１０が示されてい
る。このマウント１０は、軸部材としての内筒部材１２
と、該内筒部材１２の外方に所定距離を隔てて配された
外筒部材１４とが、それらの間に介装されたゴム弾性体
１６によって弾性的に連結されており、内筒部材１２お
よび外筒部材１４の各一方が、図示しないボデーとパワ
ーユニットの各一方に取り付けられることにより、パワ
ーユニットとボデーの間に介装されて、パワーユニット
をボデーに対して防振支持せしめるようになっている。First, FIGS. 1 and 2 show an automobile engine mount 10 as one embodiment of the present invention. The mount 10 includes an inner cylinder member 12 as a shaft member.
And an outer cylinder member 14 disposed outside the inner cylinder member 12 with a predetermined distance therebetween are elastically connected by a rubber elastic body 16 interposed therebetween, and the inner cylinder member By attaching one of the body 12 and the outer cylinder member 14 to one of the body and the power unit (not shown), the power unit and the body are interposed between the body and the power unit so as to support the power unit against vibration. There is.
【００２１】より詳細には、内筒部材１２は、小径の円
筒形状を有しており、金属や合成樹脂等の、入力荷重に
耐え得る剛性材料にて形成されている。なお、この内筒
部材１２は、内孔１８に挿通される取付軸によって、パ
ワーユニットまたはボデーに取り付けられるようになっ
ている。More specifically, the inner cylinder member 12 has a small-diameter cylindrical shape and is made of a rigid material such as metal or synthetic resin that can withstand an input load. The inner cylinder member 12 is attached to the power unit or the body by a mounting shaft that is inserted into the inner hole 18.
【００２２】一方、外筒部材１４は、繊維補強されたポ
リアミド樹脂のように、入力荷重に耐え得る強度と剛性
を有する合成樹脂材料によって形成されており、僅かに
偏平とされた略大径円筒形状の筒体部２０と、該筒体部
２０の外周面上に突設された略平板形状の取付板部２２
を有している。また、取付板部２２には、複数個の円筒
形状を有する取付スリーブ２４が板厚方向に貫設固着さ
れており、これらの取付スリーブ２４に挿通されるボル
ト等によって、外筒部材１４が、ボデーまたはパワーユ
ニットに取り付けられるようになっている。なお、筒体
部２０と取付板部２２の間には、厚肉となる連結部分に
肉抜部２６が形成されて軽量化されていると共に、連結
隅部に補強板部２８が架け渡されて補強されている。On the other hand, the outer cylinder member 14 is made of a synthetic resin material having strength and rigidity capable of withstanding an input load, such as a fiber-reinforced polyamide resin, and is a slightly flattened substantially large diameter cylinder. -Shaped cylindrical body portion 20, and a substantially flat plate-shaped mounting plate portion 22 protrudingly provided on the outer peripheral surface of the cylindrical body portion 20.
have. Further, a plurality of mounting sleeves 24 having a cylindrical shape are fixedly attached to the mounting plate portion 22 so as to penetrate in the plate thickness direction, and the outer cylinder member 14 is fixed by bolts or the like inserted through these mounting sleeves 24. It is designed to be attached to a body or power unit. It should be noted that a thinned portion 26 is formed in the thick connecting portion between the cylindrical body portion 20 and the mounting plate portion 22 to reduce the weight, and a reinforcing plate portion 28 is bridged at the connecting corner portion. Are reinforced.
【００２３】そして、外筒部材１４の筒体部２０が、内
筒部材１２の径方向外方に所定距離を隔てて配設されて
いると共に、これら内筒部材１２と外筒部材１４の間に
ゴム弾性体１６が介装されている。ゴム弾性体１６は、
全体として略厚肉円筒形状を有しており、その内周面に
内筒部材１２が、外周面に外筒部材１４が、それぞれ接
着固定されている。また、内筒部材１２と外筒部材１４
は、径方向（図中、上下方向）に僅かに偏心して配され
ており、車両への装着時に内外筒部材１２，１４間にパ
ワーユニット荷重：Ｐが及ぼされてゴム弾性体１６が変
形せしめられた際、図３に示されているように、内筒部
材１２と外筒部材１４が、略同軸的に位置せしめられる
ようになっている。更にまた、車両への装着状態下、防
振すべき主たる振動が、内外筒部材１２，１４間に対し
て、それら内外筒部材１２，１４の略偏心方向（図３
中、略上下方向）に入力されることとなる。The tubular body portion 20 of the outer tubular member 14 is arranged radially outward of the inner tubular member 12 with a predetermined distance between the inner tubular member 12 and the outer tubular member 14. A rubber elastic body 16 is interposed between the two. The rubber elastic body 16 is
It has a substantially thick-walled cylindrical shape as a whole, and an inner cylindrical member 12 is adhered and fixed to an inner peripheral surface thereof and an outer cylindrical member 14 is adhered to an outer peripheral surface thereof. In addition, the inner cylinder member 12 and the outer cylinder member 14
Are slightly eccentrically arranged in the radial direction (vertical direction in the figure), and when mounted on a vehicle, a power unit load P is exerted between the inner and outer tubular members 12 and 14 to deform the rubber elastic body 16. At this time, as shown in FIG. 3, the inner tubular member 12 and the outer tubular member 14 are positioned substantially coaxially. Furthermore, the main vibration to be isolated under the condition of being mounted on the vehicle is that the inner and outer tubular members 12, 14 are substantially eccentric to each other between the inner and outer tubular members 12, 14 (see FIG.
It will be input in the middle, approximately vertical direction).
【００２４】また、ゴム弾性体１６には、内筒部材１２
を主たる荷重の入力方向（内外筒部材１２，１４の偏心
方向）に挟んだ両側部分に位置して、それぞれ軸方向に
貫通して延びる第一のスリット３０と第二のスリット３
２が形成されている。第一のスリット３０は、内筒部材
１２と外筒部材１４の偏心方向における離間距離が大な
る側において、内筒部材１２側に凸となる略弓形の形状
を有している一方、第二のスリット３２は、内筒部材１
２と外筒部材１４の偏心方向における離間距離が小なる
側において、外筒部材１４の内周面に略沿って周方向に
略半周の長さで延びて形成されている。なお、これら第
一及び第二のスリット３０，３２によって、ゴム弾性体
１６における内筒部材１２と外筒部材１４の連結部分
が、内筒部材１２側から外筒部材１４側に向かって主た
る振動荷重入力方向に傾斜して延びる二本の脚部３４，
３４からなる略Ｖ字形断面形状とされている。Further, the rubber elastic body 16 is provided with an inner cylinder member 12
Of the first slit 30 and the second slit 3 which are located on both side portions sandwiching the main load in the input direction of the main load (the eccentric direction of the inner and outer tubular members 12 and 14) and extend axially therethrough.
2 are formed. The first slit 30 has a substantially arcuate shape that is convex toward the inner cylinder member 12 side on the side where the distance between the inner cylinder member 12 and the outer cylinder member 14 in the eccentric direction is large, The slit 32 of the inner cylinder member 1
On the side where the distance between the outer cylinder member 14 and the outer cylinder member 14 in the eccentric direction is small, it is formed so as to extend in a circumferential direction substantially along the inner peripheral surface of the outer cylinder member 14 by a length of about half. The first and second slits 30 and 32 mainly vibrate the connecting portion of the rubber elastic body 16 between the inner tubular member 12 and the outer tubular member 14 from the inner tubular member 12 side toward the outer tubular member 14 side. Two leg portions 34 extending obliquely in the load input direction,
34, and has a substantially V-shaped cross section.
【００２５】また、第一のスリット３０の周方向両端縁
部３６，３６と、第二のスリット３２の周方向両端縁部
３８，３８は、何れも、内周面が略円弧状の湾曲面形状
とされており、それによって、ゴム弾性体１６における
局部的な変形が軽減されて、変形に伴う内部応力の分散
が図られている。更に、第一のスリット３０の周方向中
央部分の内周面には、内筒部材１２と外筒部材１４の対
向方向に突出する緩衝ゴム４０，４２が、それぞれゴム
弾性体１６によって一体形成されていると共に、第二の
スリット３２の周方向中央部分の内周面には、内筒部材
１２と外筒部材１４の対向方向に突出する緩衝ゴム４
４，４６が、それぞれゴム弾性体１６によって一体形成
されており、これらの緩衝ゴム４０，４２および４４，
４６を介して、内筒部材１２と外筒部材１４が当接せし
められることにより、内筒部材１２と外筒部材１４のバ
ウンド方向およびリバウンド方向における相対的変位量
が制限されるようになっている。なお、特に本実施例で
は、第二のスリット３２内において、外部入力がない状
態では、内筒部材１２側の緩衝ゴム４４と外筒部材１４
側の緩衝ゴム４６が当接せしめられており（図１参
照）、マウント装着状態下でパワーユニット荷重が及ぼ
されることにより、所定のストッパクリアランスが形成
されるようになっている（図３参照）。Further, the circumferential end edges 36, 36 of the first slit 30 and the circumferential end edges 38, 38 of the second slit 32 are curved surfaces whose inner circumferential surfaces are substantially arcuate. The shape of the rubber elastic body 16 reduces the local deformation of the rubber elastic body 16 and disperses the internal stress caused by the deformation. Further, on the inner peripheral surface of the central portion in the circumferential direction of the first slit 30, buffer rubbers 40 and 42 projecting in the opposing direction of the inner tubular member 12 and the outer tubular member 14 are integrally formed by the rubber elastic body 16. In addition, on the inner peripheral surface of the central portion of the second slit 32 in the circumferential direction, the cushioning rubber 4 protruding in the opposing direction of the inner tubular member 12 and the outer tubular member 14 is provided.
4 and 46 are integrally formed by the rubber elastic body 16, and these cushioning rubbers 40, 42 and 44,
By bringing the inner tubular member 12 and the outer tubular member 14 into contact with each other via 46, the relative displacement amounts of the inner tubular member 12 and the outer tubular member 14 in the bound direction and the rebound direction are limited. There is. In this embodiment, in particular, in the second slit 32, when there is no external input, the cushioning rubber 44 and the outer tubular member 14 on the inner tubular member 12 side.
The cushioning rubber 46 on the side is brought into contact (see FIG. 1), and a predetermined stopper clearance is formed by exerting a load on the power unit while the mount is mounted (see FIG. 3).
【００２６】さらに、ゴム弾性体１６は、その外周面上
で外筒部材１４が形成されることにより、外筒部材１４
の成形樹脂圧力がゴム弾性体１６の外周面に及ぼされて
いる。Further, the rubber elastic body 16 has the outer cylinder member 14 formed on the outer peripheral surface thereof, whereby the outer cylinder member 14 is formed.
The molding resin pressure is exerted on the outer peripheral surface of the rubber elastic body 16.
【００２７】より具体的には、ゴム弾性体１６は、図４
に示されているように、内筒部材１２に対して加硫接着
された一体加硫成形品４８として形成されている。な
お、一体加硫成形品４８においては、第二のスリット３
２側の緩衝ゴム４４と４６も、所定距離を隔てて対向位
置せしめられており、ゴム弾性体１６の成形が容易とさ
れている。そして、図５に示されているように、かかる
一体加硫成形品４８が、外筒部材１４の成形型５０にセ
ットされることにより、一体加硫成形品４８を構成する
ゴム弾性体１６の外周面５２を成形面の一部として、該
ゴム弾性体１６の外周面上に、外筒部材１４の成形キャ
ビティ５４が形成され、以て、図６に示されている如
く、かかる成形キャビティ５４に所定の樹脂材料を充填
することによって、外筒部材１４が形成されると共に、
形成と同時に外筒部材１４がゴム弾性体１６の外周面に
固着されて組み付けられているのである。なお、外筒部
材１４の形成に先立ち、必要に応じて、ゴム弾性体１６
の外周面に適当な接着剤が塗布される。More specifically, the rubber elastic body 16 is shown in FIG.
As shown in FIG. 3, the inner cylinder member 12 is vulcanized and bonded to form an integrally vulcanized molded product 48. In the integral vulcanization molded product 48, the second slit 3
The buffer rubbers 44 and 46 on the second side are also opposed to each other with a predetermined distance therebetween, so that the rubber elastic body 16 can be easily molded. Then, as shown in FIG. 5, the integrally vulcanized molded product 48 is set in the molding die 50 of the outer tubular member 14, so that the rubber elastic body 16 constituting the integrally vulcanized molded product 48 is formed. A molding cavity 54 of the outer cylindrical member 14 is formed on the outer peripheral surface of the rubber elastic body 16 with the outer peripheral surface 52 as a part of the molding surface, and thus, as shown in FIG. The outer cylinder member 14 is formed by filling a predetermined resin material into
Simultaneously with the formation, the outer cylinder member 14 is fixed and assembled to the outer peripheral surface of the rubber elastic body 16. In addition, prior to the formation of the outer cylinder member 14, the rubber elastic body 16 may be used if necessary.
An appropriate adhesive is applied to the outer peripheral surface of the.
【００２８】ここにおいて、外筒部材１４の成形樹脂材
料を成形キャビティ５４に充填することによって、樹脂
材料の充填圧がゴム弾性体１６の外周面に及ぼされて、
ゴム弾性体１６に縮径方向の圧縮力が及ぼされることか
ら、かかる樹脂材料の充填圧によって、第一及び第二の
スリット３０，３２に押し潰されてゴム弾性体１６に歪
な変形が生じないように、ゴム弾性体１６の第一及び第
二のスリット３０，３２には、それぞれ、成形型５０に
固定された中子型５６及び５８，５８が挿通配置され
る。Here, by filling the molding resin material of the outer tubular member 14 into the molding cavity 54, the filling pressure of the resin material is exerted on the outer peripheral surface of the rubber elastic body 16,
Since the compression force in the diameter reducing direction is applied to the rubber elastic body 16, the filling pressure of the resin material causes the rubber elastic body 16 to be distorted by being crushed by the first and second slits 30 and 32. The core dies 56, 58, 58 fixed to the molding die 50 are inserted through the first and second slits 30, 32 of the rubber elastic body 16, respectively.
【００２９】なお、これらの中子型５６，５８，５８
は、図５に示されているように、何れも、全体として、
第一及び第二のスリット３０，３２の内周面形状に略対
応し且つ僅かに小さな外周面形状を有しており、樹脂材
料の充填圧がゴム弾性体１６の外周面５２の全面に及ぼ
された際、図６に示されているように、ゴム弾性体１６
の全体的な圧縮変形が所定量だけ許容されるようになっ
ている。また、第二のスリット３２に配設される中子型
５８，５８は周方向両側に分割されており、ゴム弾性体
１６の全体的な圧縮変形によって、第二のスリット３２
内で対向位置せしめられた両緩衝ゴム４４，４６が相互
に接近せしめられて当接されるようになっている。Incidentally, these core molds 56, 58, 58
, As shown in FIG. 5, as a whole,
The first and second slits 30 and 32 have a slightly smaller outer peripheral surface shape substantially corresponding to the inner peripheral surface shape, and the filling pressure of the resin material extends over the entire outer peripheral surface 52 of the rubber elastic body 16. As shown in FIG. 6, the rubber elastic body 16
The overall compressive deformation of the is allowed by a predetermined amount. Further, the core molds 58, 58 arranged in the second slit 32 are divided on both sides in the circumferential direction, and the second slit 32 is divided by the overall compression deformation of the rubber elastic body 16.
Both of the cushioning rubbers 44 and 46, which are positioned to face each other, are brought close to each other and abutted against each other.
【００３０】さらに、ゴム弾性体１６の第二のスリット
３２に配設される中子型５８，５８は、何れも、第二の
スリット３２の周方向端縁部３８に位置せしめられる端
部分が、ゴム弾性体１６の外周側において、滑らかな曲
面形状をもって切り欠かれたように凹陥せしめられるこ
とにより、軸方向に連続して延びる逃げ部６０が形成さ
れている。そして、この逃げ部６０が形成されているこ
とにより、第二のスリット３２の周方向端縁部３８に位
置せしめられる中子型５８の端部分の湾曲面における曲
率半径が、第二のスリット３２の周方向端縁部３８の湾
曲内周面における曲率半径よりも小さくされているので
ある。また、この逃げ部６０により、ゴム弾性体１６の
スリット３２の内周面と中子型５８の外周面との対向面
間距離が、第二のスリット３２の周方向端縁部３８にお
いて他の部分よりも大きくされており、かかる周方向端
縁部３８において、第二のスリット３２の内周面と中子
型５８との対向面間を、ゴム弾性体１６の軸方向に連続
して延びる逃げ空所６２が形成されている。Further, in each of the core molds 58, 58 disposed in the second slit 32 of the rubber elastic body 16, the end portions located at the circumferential end edge portion 38 of the second slit 32 are both. On the outer peripheral side of the rubber elastic body 16, a recessed portion 60 having a smooth curved surface shape is formed as a notch, so that a relief portion 60 continuously extending in the axial direction is formed. Since the relief portion 60 is formed, the radius of curvature of the curved surface of the end portion of the core die 58 located at the circumferential end edge portion 38 of the second slit 32 has a curvature radius of the second slit 32. The radius of curvature is smaller than the radius of curvature of the curved inner peripheral surface of the circumferential end edge portion 38. In addition, due to the escape portion 60, the distance between the facing surfaces of the inner peripheral surface of the slit 32 of the rubber elastic body 16 and the outer peripheral surface of the core die 58 becomes different at the circumferential end edge portion 38 of the second slit 32. It is made larger than the portion, and in the circumferential end edge portion 38, it extends continuously between the inner circumferential surface of the second slit 32 and the facing surface of the core die 58 in the axial direction of the rubber elastic body 16. An escape space 62 is formed.
【００３１】そして、ゴム弾性体１６の外周面上に形成
された成形キャビティ５４に、成形樹脂材料が注入，充
填されると、図６に示されているように、ゴム弾性体１
６における第二のスリット３２の周方向両端縁部３８，
３８が、成形樹脂圧力によって逃げ空所６２内に押し込
まれ、中子型５８の端部分の湾曲面形状に沿った内周面
形状となるように弾性変形せしめられることとなる。即
ち、このようにゴム弾性体１６における第二のスリット
３２の周方向両端縁部３８，３８が、充填樹脂圧力によ
り第二のスリット３２を斜め外方から内方に向かって押
し潰すような方向に押圧されて、その湾曲内周面の曲率
半径が小さくなるように弾性変形せしめられることによ
り、かかる周方向端縁部３８に対して、有効な圧縮応力
が及ぼされて予圧縮が加えられるのである。Then, when the molding resin material is injected and filled into the molding cavity 54 formed on the outer peripheral surface of the rubber elastic body 16, as shown in FIG.
6, both edge portions 38 in the circumferential direction of the second slit 32 in 6,
38 is pushed into the escape space 62 by the molding resin pressure and elastically deformed so as to have an inner peripheral surface shape along the curved surface shape of the end portion of the core die 58. That is, in this way, the circumferential end edges 38, 38 of the second slit 32 in the rubber elastic body 16 are crushed inwardly from the outer side to the inner side by the filling resin pressure. By being pressed by and elastically deformed so that the radius of curvature of the curved inner peripheral surface becomes small, effective compressive stress is exerted on the circumferential end edge portion 38 and precompression is applied. is there.
【００３２】従って、上述の如き構造とされたエンジン
マウント１０においては、ゴム弾性体１６に対して有効
な予圧縮を加えることが可能であり、ゴム弾性体１６に
おける引張応力の発生が低減乃至は防止されて、優れた
耐久性が発揮されるのである。より具体的には、図３に
示されているように、装着状態下に及ぼされるパワーユ
ニット荷重：Ｐや、バウンド方向（図３中、パワーユニ
ット荷重と略同一方向）の振動入力によって、ゴム弾性
体１６が変形せしめられると、第二のスリット３２が拡
開されて、ゴム弾性体１６における第二のスリット３２
の周方向両端縁部３８，３８に対して、その湾曲内周面
の曲率半径が大きくなる方向の弾性変形が生ぜしめられ
ることとなるが、これらの周方向両端縁部３８，３８
は、充填樹脂圧力による圧縮変形に基づいて予圧縮が加
えられて、外力が及ぼされていない装着前の状態（図１
参照）下では、ゴム弾性体１６の加硫形状（図４参照）
より湾曲内周面の曲率半径が小さくなるように圧縮変形
せしめられていることから、上述の如きパワーユニット
荷重やバウンド方向の振動入力によってゴム弾性体１６
が変形せしめられた際にも、第二のスリット３２の周方
向両端縁部３８，３８における引張応力の発生が低減乃
至は防止され得て、引張応力に起因する亀裂等の発生が
防止されることから、優れた耐久性が発揮されるのであ
る。Therefore, in the engine mount 10 having the above-mentioned structure, effective precompression can be applied to the rubber elastic body 16, and the generation of tensile stress in the rubber elastic body 16 is reduced or reduced. It is prevented, and excellent durability is exhibited. More specifically, as shown in FIG. 3, the rubber elastic body is caused by the power unit load: P exerted under the mounted state and the vibration input in the bounding direction (in the same direction as the power unit load in FIG. 3). When 16 is deformed, the second slit 32 is expanded and the second slit 32 in the rubber elastic body 16 is expanded.
The circumferential end edges 38, 38 are elastically deformed in the direction in which the radius of curvature of the curved inner circumferential surface increases, but the circumferential end edges 38, 38 are not deformed.
Is a state before mounting in which pre-compression is applied based on the compression deformation due to the filling resin pressure and no external force is exerted (Fig. 1).
Below, the vulcanized shape of the rubber elastic body 16 (see FIG. 4)
Since it is compressed and deformed so that the radius of curvature of the curved inner peripheral surface becomes smaller, the rubber elastic body 16 is subjected to the power unit load and the vibration input in the bounding direction as described above.
Even when is deformed, it is possible to reduce or prevent the occurrence of tensile stress at both circumferential edge portions 38, 38 of the second slit 32, and prevent the occurrence of cracks or the like due to tensile stress. Therefore, excellent durability is exhibited.
【００３３】しかも、かかるエンジンマウント１０にお
いては、合成樹脂製の外筒部材１４を採用しながらも、
特別な加工を必要とすることなく、ゴム弾性体１６に対
して有効な予圧縮を加えることが出来ることから、良好
なるマウント耐久性を確保しつつ、マウントの軽量化お
よび低コスト化と製作性の向上が有利に図られ得るので
ある。Moreover, in such an engine mount 10, although the outer cylinder member 14 made of synthetic resin is adopted,
Since effective pre-compression can be applied to the rubber elastic body 16 without requiring special processing, the mount can be made lighter in weight, lower in cost, and manufacturable while ensuring good mount durability. Can be advantageously improved.
【００３４】また、本実施例のエンジンマウント１０に
おいては、第二のスリット３２がゴム弾性体１６を貫通
して形成されており、第二のスリット３２の外周側が、
ゴム弾性体１６にて形成された周壁部６４によって覆わ
れていることから、第二のスリット３２内への樹脂材料
の入り込みを防止しつつ、ゴム弾性体１６における第二
のスリット３２の周方向両端縁部３８，３８に対して、
外筒部材１４の成形樹脂圧力を容易に且つ有効に作用せ
しめることが出来ると共に、リバウンド方向のストッパ
機構を容易に形成することが出来るといった利点もあ
る。Further, in the engine mount 10 of this embodiment, the second slit 32 is formed so as to penetrate the rubber elastic body 16, and the outer peripheral side of the second slit 32 is
Since it is covered by the peripheral wall portion 64 formed of the rubber elastic body 16, the resin material is prevented from entering the second slit 32 and the circumferential direction of the second slit 32 of the rubber elastic body 16 is prevented. For both edge portions 38, 38,
There is an advantage that the molding resin pressure of the outer cylinder member 14 can be easily and effectively applied, and a stopper mechanism in the rebound direction can be easily formed.
【００３５】なお、ゴム弾性体１６における第一のスリ
ット３０の周方向両端縁部３６，３６には、外筒部材１
４の成形樹脂圧力に基づく局部的な予圧縮が及ぼされて
いないが、かかる周方向端縁部３６，３６は、マウント
装着状態下に及ぼされるパワーユニット荷重：Ｐによっ
て圧縮変形せしめられることから、その構造上、リバウ
ンド方向の荷重入力による過大な引張応力の発生が抑え
られて、十分な耐久性が確保されることとなる。The outer cylinder member 1 is provided at both circumferential edge portions 36, 36 of the first slit 30 in the rubber elastic body 16.
Although the local precompression based on the molding resin pressure of No. 4 is not exerted, the circumferential end edges 36, 36 are compressed and deformed by the power unit load: P exerted while the mount is mounted. Structurally, generation of excessive tensile stress due to load input in the rebound direction is suppressed, and sufficient durability is secured.
【００３６】以上、本発明の実施例について詳述してき
たが、これは文字通りの例示であって、本発明は、かか
る具体例にのみ限定して解釈されるものではない。The embodiments of the present invention have been described in detail above, but these are literal examples, and the present invention should not be construed as being limited to such specific examples.
【００３７】例えば、ゴム弾性体１６における第一のス
リット３０の周方向両端縁部３６，３６に対しても、第
二のスリット３２の周方向両端縁部３８，３８と同様
に、外筒部材１４の成形樹脂圧力に基づく予圧縮を加え
るようにしても良い。For example, with respect to both circumferential end edges 36, 36 of the first slit 30 in the rubber elastic body 16, as in the circumferential both end edges 38, 38 of the second slit 32, the outer tubular member is provided. You may make it apply a precompression based on 14 molding resin pressure.
【００３８】また、前記実施例では、二つのスリット３
０，３２が設けられていたが、単一の或いは三つ以上の
スリットを有するエンジンマウントに対しても、本発明
は、同様に適用可能である。In the above embodiment, the two slits 3
Although 0 and 32 are provided, the present invention is similarly applicable to an engine mount having a single slit or three or more slits.
【００３９】更にまた、前記実施例では、外筒部材１４
が取付板部２２を有するブラケット構造とされていた
が、ブラケット構造を有しない筒体形状の外筒部材を採
用することも、勿論、可能である。Furthermore, in the above embodiment, the outer cylinder member 14
Although it has a bracket structure having the mounting plate portion 22, it is of course possible to employ a cylindrical outer cylinder member having no bracket structure.
【００４０】加えて、前記実施例では、本発明を自動車
用エンジンマウントに適用したものの具体例を示した
が、本発明は、その他、サスペンションブッシュやボデ
ーマウント、或いは自動車以外の各種装置における筒型
マウントに対しても、適用可能であることは、勿論であ
る。In addition, in the above-mentioned embodiment, a specific example of the present invention applied to an automobile engine mount is shown. However, the present invention is not limited to the above, and may be a suspension bush, a body mount, or a tubular type in various devices other than automobiles. Of course, it can be applied to the mount.
【００４１】その他、一々列挙はしないが、本発明は、
当業者の知識に基づいて、種々なる変更，修正，改良等
を加えた態様において実施され得るものであり、また、
そのような実施態様が、本発明の趣旨を逸脱しない限
り、何れも、本発明の範囲内に含まれるものであること
は、言うまでもない。In addition, although not enumerated one by one, the present invention
Based on the knowledge of those skilled in the art, the present invention can be implemented in a form in which various changes, modifications, improvements, and the like are made.
It goes without saying that all such embodiments are included in the scope of the present invention without departing from the spirit of the present invention.
【００４２】[0042]
【発明の効果】上述の説明から明らかなように、本発明
に従う構造とされた筒型マウントにおいては、合成樹脂
製の外筒部材を採用しながらも、荷重入力時に引張応力
が生じ易い、ゴム弾性体におけるスリットの周方向端縁
部に対して有効な予圧縮が加えられることから、外筒部
材の樹脂化によるマウント軽量化等の効果と共に、マウ
ント耐久性の向上効果が、何れも有効に発揮されるので
ある。As is apparent from the above description, in the tubular mount having the structure according to the present invention, although the outer tubular member made of synthetic resin is used, the tensile stress is apt to occur at the time of inputting a rubber. Since effective pre-compression is applied to the circumferential edge of the slit in the elastic body, the effect of reducing the mount weight and the like by using resin for the outer cylinder member and the effect of improving the mount durability are all effective. It will be demonstrated.
【００４３】また、本発明方法に従えば、合成樹脂製の
外筒部材の形成と同時に、該外筒部材をゴム弾性体に組
み付けることが出来ると共に、荷重入力時に引張応力が
生じ易い、ゴム弾性体におけるスリットの周方向端縁部
に対して有効な予圧縮を加えることが出来るのであり、
それ故、優れたマウント耐久性を確保しつつ、外筒部材
の樹脂化が有利に実現され得るのである。Further, according to the method of the present invention, the outer cylinder member made of synthetic resin can be formed at the same time as the outer cylinder member is assembled to the rubber elastic body, and a tensile stress is easily generated at the time of inputting a load. It is possible to add effective precompression to the circumferential edge of the slit in the body,
Therefore, it is possible to advantageously realize resinization of the outer cylinder member while ensuring excellent mount durability.
【図１】本発明の実施例としてのエンジンマウントを示
す横断面図である。FIG. 1 is a cross-sectional view showing an engine mount as an embodiment of the present invention.
【図２】図１におけるII−II断面図である。FIG. 2 is a sectional view taken along the line II-II in FIG.
【図３】図１に示されたエンジンマウントの装着状態を
説明するための横断面図である。FIG. 3 is a cross-sectional view for explaining a mounted state of the engine mount shown in FIG.
【図４】図１に示されたエンジンマウントを構成するゴ
ム弾性体の一体加硫成形品を示す横断面図である。4 is a cross-sectional view showing an integrally vulcanization molded product of a rubber elastic body that constitutes the engine mount shown in FIG.
【図５】外筒部材の成形型への図４に示された一体加硫
成形品のセット状態を示す説明図である。FIG. 5 is an explanatory view showing a state where the integrally vulcanized molded product shown in FIG. 4 is set in the molding die of the outer cylinder member.
【図６】図５に示された成形型の成形キャビティに合成
樹脂材料を充填せしめた状態を示す説明図である。6 is an explanatory view showing a state in which a synthetic resin material is filled in a molding cavity of the molding die shown in FIG.
１０ エンジンマウント １２ 内筒部材 １４ 外筒部材 １６ ゴム弾性体 ３０ 第一のスリット ３２ 第二のスリット ３６，３８ 周方向端縁部 ５０ 成形型 ５４ 成形キャビティ ５６，５８ 中子型 ６０ 逃げ部 ６２ 逃げ空間 10 Engine Mount 12 Inner Cylinder Member 14 Outer Cylinder Member 16 Rubber Elastic Body 30 First Slit 32 Second Slit 36, 38 Circumferential End Edge 50 Molding Die 54 Molding Cavity 56, 58 Core Die 60 Relief 62 Escape space
Claims (5)
隔てて配された外筒部材を、それらの間に介装されたゴ
ム弾性体によって連結すると共に、該軸部材と該外筒部
材の間を軸方向に貫通して延びるスリットを設けた筒型
マウントにおいて、 前記外筒部材が合成樹脂製とされると共に、該外筒部材
の成形樹脂圧力が前記ゴム弾性体に及ぼされて、該ゴム
弾性体が、前記スリットの周方向端縁部において、該ス
リットの内方に向かって局部的に圧縮変形せしめられて
いることを特徴とする筒型マウント。1. A shaft member and an outer cylinder member, which is arranged outside the shaft member at a predetermined distance from each other, are connected by a rubber elastic body interposed therebetween, and the shaft member and the In a cylindrical mount having slits extending axially through the outer cylinder members, the outer cylinder member is made of synthetic resin, and the molding resin pressure of the outer cylinder member exerts on the rubber elastic body. The rubber elastic body is locally compressed and deformed toward the inside of the slit at the circumferential end edge of the slit.
周方向端縁部が、荷重入力による該ゴム弾性体の変形に
よって曲率半径が大きくなる湾曲内周面形状を有してお
り、前記外筒部材の成形樹脂圧力が該ゴム弾性体の外周
面に及ぼされることによって、かかるゴム弾性体におけ
るスリットの周方向端縁部が、該湾曲内周面の曲率半径
が小さくなる方向に圧縮変形せしめられている請求項１
に記載の筒型マウント。2. The outer peripheral member has a curved inner peripheral surface in which a circumferential edge of the slit in the rubber elastic body has a large radius of curvature due to deformation of the rubber elastic body due to input of a load. When the molding resin pressure is applied to the outer peripheral surface of the rubber elastic body, the circumferential edge of the slit in the rubber elastic body is compressed and deformed in the direction in which the radius of curvature of the curved inner peripheral surface becomes smaller. Claim 1
The cylindrical mount described in.
を貫通して形成されていることにより、かかるゴム弾性
体によって、該スリットの外周側を覆う周壁部が形成さ
れている請求項１又は２に記載の筒型マウント。3. The slit is formed so as to penetrate the inside of the rubber elastic body, so that the rubber elastic body forms a peripheral wall portion covering the outer peripheral side of the slit. The cylindrical mount described in 2.
弾性体の外周面に及ぼされて圧縮変形せしめられること
により、前記スリットの周方向中央部分において、前記
軸部材側と前記周壁部側が当接せしめられている請求項
３に記載の筒型マウント。4. The molding resin pressure of the outer cylinder member is exerted on the outer peripheral surface of the rubber elastic body and is compressed and deformed, so that the shaft member side and the peripheral wall portion side are located in the circumferential center portion of the slit. The tubular mount according to claim 3, which is brought into contact with the tubular mount.
隔てて配された外筒部材が、それらの間に介装されたゴ
ム弾性体によって連結されると共に、該軸部材と該外筒
部材の間を軸方向に貫通して延びるスリットが設けられ
た筒型マウントの製造方法であって、 前記外筒部材の成形型に前記ゴム弾性体をセットすると
共に、該ゴム弾性体の前記スリットに中子型を配置せし
めて、該ゴム弾性体の外周面上に前記外筒部材の成形キ
ャビティを形成する一方、前記ゴム弾性体における前記
スリットの周方向端縁部に対する前記中子型の当接部分
に逃げ部を設けて、該スリットの周方向端縁部の内周面
と該中子型の外周面との間に逃げ空所を形成せしめた状
態下、前記成形キャビティに樹脂材料を充填して前記外
筒部材を形成すると同時に、該樹脂材料の充填圧を前記
ゴム弾性体に及ぼしめて、該ゴム弾性体における前記ス
リットの周方向端縁部を、前記逃げ空所に入り込ませて
前記スリットの内方に向かって圧縮変形せしめることを
特徴とする筒型マウントの製造方法。5. A shaft member and an outer cylinder member, which is arranged outside the shaft member at a predetermined distance from each other, are connected by a rubber elastic body interposed therebetween, and the shaft member and A method of manufacturing a tubular mount, wherein slits are provided that extend axially through the outer tubular members, wherein the rubber elastic body is set in a molding die of the outer tubular member, and the rubber elastic body is provided. While forming a molding cavity of the outer cylindrical member on the outer peripheral surface of the rubber elastic body by disposing a core mold in the slit, the core with respect to the circumferential end edge of the slit in the rubber elastic body. The mold cavity is provided with an escape portion at the abutting portion of the die to form an escape space between the inner peripheral surface of the circumferential edge of the slit and the outer peripheral surface of the core die. At the same time as filling the resin material to form the outer cylinder member, A filling pressure of the material is exerted on the rubber elastic body so that the circumferential end edge portion of the slit in the rubber elastic body is caused to enter the escape space and be compressed and deformed inward of the slit. A method of manufacturing a characteristic cylindrical mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06431296A JP3700237B2 (en) | 1996-03-21 | 1996-03-21 | Cylindrical mount and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06431296A JP3700237B2 (en) | 1996-03-21 | 1996-03-21 | Cylindrical mount and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09257076A true JPH09257076A (en) | 1997-09-30 |
| JP3700237B2 JP3700237B2 (en) | 2005-09-28 |
Family
ID=13254605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06431296A Expired - Fee Related JP3700237B2 (en) | 1996-03-21 | 1996-03-21 | Cylindrical mount and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3700237B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011011475A (en) * | 2009-07-02 | 2011-01-20 | Toyo Tire & Rubber Co Ltd | Method of manufacturing damping device |
-
1996
- 1996-03-21 JP JP06431296A patent/JP3700237B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011011475A (en) * | 2009-07-02 | 2011-01-20 | Toyo Tire & Rubber Co Ltd | Method of manufacturing damping device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3700237B2 (en) | 2005-09-28 |
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