JP6383195B2 - Manufacturing method of double anti-vibration center bearing support - Google Patents

Manufacturing method of double anti-vibration center bearing support Download PDF

Info

Publication number
JP6383195B2
JP6383195B2 JP2014135814A JP2014135814A JP6383195B2 JP 6383195 B2 JP6383195 B2 JP 6383195B2 JP 2014135814 A JP2014135814 A JP 2014135814A JP 2014135814 A JP2014135814 A JP 2014135814A JP 6383195 B2 JP6383195 B2 JP 6383195B2
Authority
JP
Japan
Prior art keywords
molding space
burr
support member
molding
elastic support
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.)
Active
Application number
JP2014135814A
Other languages
Japanese (ja)
Other versions
JP2016013742A (en
Inventor
政弘 池田
政弘 池田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nok Corp
Original Assignee
Nok Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nok Corp filed Critical Nok Corp
Priority to JP2014135814A priority Critical patent/JP6383195B2/en
Publication of JP2016013742A publication Critical patent/JP2016013742A/en
Application granted granted Critical
Publication of JP6383195B2 publication Critical patent/JP6383195B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Motor Power Transmission Devices (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

本発明は、自動車等の車両のプロペラシャフトを回転自在にかつ弾性的に支持するセンターベアリングサポートの製造方法であって、特に、車体側に防振マウントを介して取り付けられる二重防振構造センターベアリングサポートの製造方法に関するもののである。   The present invention relates to a method of manufacturing a center bearing support that rotatably and elastically supports a propeller shaft of a vehicle such as an automobile, and more particularly to a double vibration isolation structure center that is attached to a vehicle body side via a vibration isolation mount. The present invention relates to a bearing support manufacturing method.

従来、図６に示すように、センターベアリングサポートとして、自動車のプロペラシャフトの軸方向中間部に装着されるセンターベアリング２００が取り付けられた内環１０１と、その外周に配置された外環（不図示）と、これら内環１０１と外環の間に一体的に設けられたゴム状弾性材料（ゴム材料又はゴム状弾性を有する合成樹脂材料）からなる弾性支持部材１０２とを備えるセンターベアリングサポート本体１００が、ブラケット１１０と、このブラケット１１０の両端のフランジ１１１に取り付けられる防振マウント１２０を介して、図７に示すように、ボルト１３０及びこれに螺合するナット１３１によって車体側のメンバー２００に取り付けられる二重防振構造センターベアリングサポートが知られている。   Conventionally, as shown in FIG. 6, as a center bearing support, an inner ring 101 to which a center bearing 200 to be mounted in an axial middle portion of a propeller shaft of an automobile is attached, and an outer ring (not shown) arranged on the outer periphery thereof. ) And an elastic support member 102 made of a rubber-like elastic material (rubber material or synthetic resin material having rubber-like elasticity) integrally provided between the inner ring 101 and the outer ring. As shown in FIG. 7, the bracket 110 is attached to the vehicle body side member 200 via the bracket 110 and the vibration-proof mounts 120 attached to the flanges 111 at both ends of the bracket 110, as shown in FIG. A double anti-vibration center bearing support is known.

防振マウント１２０は、筒状金具１２１ａとその上端寄りの外周に配置した環状の第一金具１２１ｂの間にゴム弾性体からなる上側マウント本体１２１ｃを一体成形した上側マウント１２１と、この上側マウント１２１における筒状金具１２１ａの下端寄りの外周に外挿可能な環状の第二及び第三金具１２２ａ，１２２ｂの間にゴム弾性体からなる下側マウント本体１２２ｃを一体成形した下側マウント１２２を備え、上側マウント１２１の筒状金具１２１ａがボルト１３０とナット１３１によって車体側のメンバー２００に緊結されると共に、上側マウント１２１の第一金具１２１ｂと下側マウント１２２の第二金具１２２ａの間にブラケット１１０のフランジ１１１を挟持するようになっている（下記の特許文献参照）。   The anti-vibration mount 120 includes an upper mount 121 in which an upper mount body 121c made of a rubber elastic body is integrally formed between a cylindrical metal member 121a and an annular first metal member 121b disposed near the upper end thereof, and the upper mount 121. A lower mount 122 in which a lower mount main body 122c made of a rubber elastic body is integrally formed between the annular second and third metal fittings 122a and 122b that can be inserted on the outer periphery near the lower end of the cylindrical metal fitting 121a. A cylindrical fitting 121a of the upper mount 121 is fastened to the member 200 on the vehicle body side by a bolt 130 and a nut 131, and the bracket 110 is between the first fitting 121b of the upper mount 121 and the second fitting 122a of the lower mount 122. The flange 111 is clamped (see the following patent document).

実開平５−６５６４０号公報Japanese Utility Model Publication No. 5-65640

しかしながら、上記従来の二重防振構造センターベアリングサポートによれば、防振マウント１２０が必要であり、その製造において、上側マウント１２１及び下側マウント１２２をそれぞれ金型を用いて加硫成形する工程が必要となるため、コストが高くなってしまう問題がある。   However, according to the conventional double anti-vibration structure center bearing support, the anti-vibration mount 120 is required, and in the manufacturing process, the upper mount 121 and the lower mount 122 are respectively vulcanized using a mold. Therefore, there is a problem that the cost becomes high.

また、センターベアリングサポート本体１００の弾性支持部材１０２は、プロペラシャフトの軸方向挙動に柔軟に追随しながらこのプロペラシャフトを低いばね定数で支持するために膜状に成形されており、したがって、内環１０１と外環の間に弾性支持部材１０２を一体に加硫成形する過程で、気泡の巻き込み等による微小欠陥を生じると、これによって弾性支持部材１０２の耐久性の低下をきたすおそれがある。   The elastic support member 102 of the center bearing support body 100 is formed into a film shape so as to support the propeller shaft with a low spring constant while flexibly following the axial behavior of the propeller shaft. In the process of integrally vulcanizing and forming the elastic support member 102 between the outer ring 101 and the outer ring, if a micro defect due to entrainment of bubbles or the like occurs, the durability of the elastic support member 102 may be reduced.

本発明は、以上のような点に鑑みてなされたものであって、その技術的課題は、コストの上昇を抑えると共に耐久性に優れた二重防振構造センターベアリングサポートを提供することにある。   The present invention has been made in view of the above points, and a technical problem thereof is to provide a double vibration-proof structure center bearing support excellent in durability while suppressing an increase in cost. .

上述した技術的課題を有効に解決するための手段として、請求項１の発明に係る二重防振構造センターベアリングサポートの製造方法は、センターベアリングサポート本体の膜状の弾性支持部材を成形する弾性支持部材成形空間と、この弾性支持部材成形空間における成形用ゴム材料の流れの下流位置からバリ成形空間を介して連続した所要数のマウント本体成形空間を有する金型を用い、前記弾性支持部材成形空間へ開口した注入ゲートから成形用ゴム材料を注入することによって、この成形用ゴム材料を、前記弾性支持部材成形空間から前記バリ成形空間を経由してマウント本体成形空間まで充填し、前記バリ成形空間及び前記マウント本体成形空間が、前記弾性支持部材成形空間の外周に周方向等配形成されたことを特徴とするものである。 As a means for effectively solving the technical problem described above, the manufacturing method of the double anti-vibration structure center bearing support according to the invention of claim 1 is characterized in that the film-like elastic support member of the center bearing support body is molded. Using the mold having a support member molding space and a required number of mount body molding spaces continuous from the downstream position of the flow of the molding rubber material in the elastic support member molding space through the burr molding space, the elastic support member molding By injecting a molding rubber material from an injection gate opened to the space, the molding rubber material is filled from the elastic support member molding space through the burr molding space to the mount body molding space, and the burr molding is performed. those space and the mount main body molding space, wherein said was periphery circumferentially equidistant form of elastic support members forming space That.

請求項１の構成によれば、注入ゲートから金型内へ注入される成形用ゴム材料は、弾性支持部材成形空間へ充填され、さらに弾性支持部材成形空間における成形用ゴム材料の流れの下流側からバリ成形空間を通じてマウント本体成形空間へ充填され、硬化することによって、弾性支持部材成形空間で成形された弾性支持部材と、マウント本体成形空間で成形されたマウント本体が、バリ成形空間で成形されたバリ部を介して互いに連続した成形物が得られる。そして賦形（充填）の過程で成形用ゴム材料に巻き込まれた気泡は、弾性支持部材成形空間からバリ成形空間を通じてマウント本体成形空間へ追い出されるので、弾性支持部材成形空間で成形される膜状の弾性支持部材には前記気泡による微小欠陥が生じにくく、しかもセンターベアリングサポート本体の弾性支持部材と、センターベアリングサポート本体側と車体側の間に介在させる防振マウントのマウント本体が、バリ部を介して互いに連続した状態で同時に成形される。   According to the configuration of the first aspect, the molding rubber material injected into the mold from the injection gate is filled into the elastic support member molding space, and further downstream of the flow of the molding rubber material in the elastic support member molding space. By filling and curing the mount body molding space through the burr molding space, the elastic support member molded in the elastic support member molding space and the mount body molded in the mount body molding space are molded in the burr molding space. Molded products that are continuous with each other through the burrs are obtained. Since the air bubbles entrained in the molding rubber material during the shaping (filling) process are expelled from the elastic support member molding space to the mount body molding space through the burr molding space, the film shape molded in the elastic support member molding space The elastic support member is less susceptible to microscopic defects due to the bubbles, and the elastic support member of the center bearing support main body and the mount main body of the vibration proof mount interposed between the center bearing support main body side and the vehicle body side have a burr portion. Are simultaneously formed in a continuous state.

また、弾性支持部材成形空間からバリ成形空間を通じてのマウント本体成形空間への成形用ゴム材料の流れによる気泡の追い出しを、弾性支持部材成形空間の外周における周方向等配位置で有効に行うことができる。 Further, it is possible to effectively expel bubbles by the flow of the molding rubber material from the elastic support member molding space to the mount body molding space through the burr molding space at a circumferentially equidistant position on the outer periphery of the elastic support member molding space. it can.

請求項２の発明に係る二重防振構造センターベアリングサポートの製造方法は、請求項１に記載の構成において、バリ成形空間が弾性支持部材成形空間の外周に沿って円弧状に延び、マウント本体成形空間が前記バリ成形空間の周方向一端に形成されたことを特徴とするものである。 A process according to claim 2 double vibration damping center bearing support according to the invention, in the structure according to claim 1, extend arcuately burrs molding space along the outer periphery of the elastic support members forming space, mounting body The molding space is formed at one end in the circumferential direction of the burr molding space.

請求項２の構成によれば、弾性支持部材成形空間の外周から円弧状に延びるバリ成形空間への成形用ゴム材料の流れが生じるので、気泡の追い出しを、弾性支持部材成形空間の外周における広い範囲で行うことができる。 According to the configuration of the second aspect , since the molding rubber material flows from the outer periphery of the elastic support member molding space to the burr molding space extending in an arc shape, the bubbles are expelled from the wide outer periphery of the elastic support member molding space. Can be done in a range.

請求項３の発明に係る二重防振構造センターベアリングサポートの製造方法は、請求項１〜２のいずれかに記載の構成において、弾性支持部材成形空間とバリ成形空間の間に、この弾性支持部材成形空間及びバリ成形空間より流路が狭い薄バリ成形隙間が形成され、この薄バリ成形隙間に、弾性支持部材成形空間で成形される弾性支持部材とバリ成形空間で成形されるバリ部との間で容易に破断可能な薄バリを成形することを特徴とするものである。 Method for producing a dual vibration damping center bearing support according to the invention of claim 3 is the structure of any of claims 1-2, between the elastic support members forming space and burrs forming space, the elastic support A thin burr molding gap having a narrower flow path than the member molding space and the burr molding space is formed, and an elastic support member molded in the elastic support member molding space and a burr section molded in the burr molding space are formed in the thin burr molding gap. It is characterized by forming a thin burr that can be easily broken between.

請求項３の構成によれば、弾性支持部材とバリ部との間に成形される薄バリが容易に破断可能であるため、成形後に弾性支持部材からバリ部を除去する場合に、その除去作業を容易に行うことができる。 According to the configuration of the third aspect , since the thin burr formed between the elastic support member and the burr portion can be easily broken, when the burr portion is removed from the elastic support member after forming, the removing operation is performed. Can be easily performed.

本発明に係る二重防振構造センターベアリングサポートの製造方法によれば、センターベアリングサポート本体の膜状の弾性支持部材と、前記センターベアリングサポート本体側と車体側の間に介在させるマウント本体が、バリ部を介して互いに連続した状態で同時に成形されるので、マウント本体を弾性支持部材と別工程で成形する場合に比較して製造コストを著しく低減することができ、取扱いや納入顧客への納入も容易になり、しかも弾性支持部材の微小欠陥の発生も有効に防止して、その耐久性を向上することができる。   According to the manufacturing method of the double anti-vibration structure center bearing support according to the present invention, the film-like elastic support member of the center bearing support body, and the mount body interposed between the center bearing support body side and the vehicle body side, Since it is molded simultaneously in a continuous state via the burr part, the manufacturing cost can be significantly reduced compared to the case where the mount body is molded separately from the elastic support member, and handling and delivery to customers In addition, the occurrence of minute defects in the elastic support member can be effectively prevented, and the durability can be improved.

本発明に係る二重防振構造センターベアリングサポートの製造方法における好ましい実施の形態で用いられる金型の概略構成を示す平面図である。It is a top view which shows schematic structure of the metal mold | die used by preferable embodiment in the manufacturing method of the double vibration proof structure center bearing support which concerns on this invention. 図１の金型で成形された成形品を示す斜視図である。It is a perspective view which shows the molded article shape | molded with the metal mold | die of FIG. 図２の成形品の要部を拡大して示す断面斜視図である。It is a cross-sectional perspective view which expands and shows the principal part of the molded article of FIG. 本発明に係る二重防振構造センターベアリングサポートの製造方法における好ましい実施の形態により得られる二重防振構造センターベアリングサポートの概略構成を示す斜視図である。It is a perspective view which shows schematic structure of the double vibration proof structure center bearing support obtained by preferable embodiment in the manufacturing method of the double vibration proof structure center bearing support which concerns on this invention. 本発明に係る二重防振構造センターベアリングサポートの製造方法における他の実施の形態で用いられる金型の概略構成を示す平面図である。It is a top view which shows schematic structure of the metal mold | die used in other embodiment in the manufacturing method of the double vibration proof structure center bearing support which concerns on this invention. 従来の技術により製造された二重防振構造センターベアリングサポートの概略構成の一例を示す斜視図である。It is a perspective view which shows an example of schematic structure of the double vibration proof structure center bearing support manufactured by the prior art. 従来の技術により製造された二重防振構造センターベアリングサポートの防振マウントの一例を示す断面図である。It is sectional drawing which shows an example of the vibration proof mount of the double vibration proof structure center bearing support manufactured by the prior art.

以下、本発明に係る二重防振構造センターベアリングサポートの製造方法の好ましい実施の形態について、図面を参照しながら詳細に説明する。まず図１は、この実施の形態で用いられる金型の概略構成を示すものであり、図２及び図３は、図１の金型で成形された成形品を示すものであり、図４は、この実施の形態により得られる二重防振構造センターベアリングサポートの概略構成を示すものである。   Hereinafter, a preferred embodiment of a method for manufacturing a double vibration-proof structure center bearing support according to the present invention will be described in detail with reference to the drawings. First, FIG. 1 shows a schematic configuration of a mold used in this embodiment, FIGS. 2 and 3 show a molded product molded by the mold of FIG. 1, and FIG. 1 shows a schematic configuration of a double vibration-proof structure center bearing support obtained by this embodiment.

図１に示す金型１は、互いに衝合・分離可能に組み合わされた不図示の複数の分割型の間に、図２及び図３に示すセンターベアリングサポート本体２の環状かつ膜状でベローズ状の屈曲した断面形状をなす弾性支持部材２１を成形する弾性支持部材成形空間１１と、この弾性支持部材成形空間１１の径方向中間位置における例えば周方向４等配位置に開口した注入ゲート１２と、弾性支持部材成形空間１１の外周側における周方向４等配位置にあって、この弾性支持部材成形空間１１の外周縁に沿って円弧状に延びると共に周方向一端１３ａが外径側へ延びるバリ成形空間１３と、各バリ成形空間１３の周方向一端１３ａに連続し、図４に示す左右の防振マウント３における上下各一対のマウント本体３１を成形するマウント本体成形空間１４と、前記弾性支持部材成形空間１１の外周縁と各バリ成形空間１３の間にあって、この弾性支持部材成形空間１１及びバリ成形空間１３より流路が著しく狭い薄バリ成形隙間１５が形成されている。   A mold 1 shown in FIG. 1 has an annular, membrane-like, bellows-like shape of a center bearing support body 2 shown in FIGS. 2 and 3 between a plurality of split molds (not shown) combined so as to be able to collide and separate from each other. An elastic support member molding space 11 for molding the elastic support member 21 having a bent cross-sectional shape, and an injection gate 12 opened at, for example, four circumferential positions in the radial intermediate position of the elastic support member molding space 11; Burr molding is located at four equal positions in the circumferential direction on the outer circumferential side of the elastic support member molding space 11 and extends in an arc shape along the outer peripheral edge of the elastic support member molding space 11 and the circumferential one end 13a extends to the outer diameter side. Mount main body forming space 1 for forming the pair of upper and lower mount main bodies 31 in the left and right anti-vibration mounts 3 shown in FIG. A thin burr molding gap 15 is formed between the outer peripheral edge of the elastic support member molding space 11 and each burr molding space 13, and the flow path is significantly narrower than the elastic support member molding space 11 and the burr molding space 13. .

図４に示すように、防振マウント３のマウント本体３１は、センターベアリングサポート本体２に比較して小径の環状をなすものであり、したがって、マウント本体成形空間１４は、弾性支持部材成形空間１１に比較して十分に小径のものである。このため、４個のマウント本体成形空間１４は、例えば方形の金型１に円形の弾性支持部材成形空間１１を形成した場合の金型１の四隅付近のデッドスペースを利用して配置することができるので、金型１の大型化を防止することができる。   As shown in FIG. 4, the mount main body 31 of the anti-vibration mount 3 has an annular shape with a smaller diameter than the center bearing support main body 2, and therefore the mount main body forming space 14 is the elastic support member forming space 11. The diameter is sufficiently small compared to the above. For this reason, the four mount main body forming spaces 14 can be arranged using dead spaces near the four corners of the mold 1 when the circular elastic support member forming space 11 is formed in the rectangular mold 1, for example. Since it can do, the enlargement of the metal mold | die 1 can be prevented.

また、弾性支持部材成形空間１１における内周部には、図２〜図４に示すセンターベアリングサポート本体２の内環２２が、また外周部には、前記センターベアリングサポート本体２の外環２３が位置決めセットされるようになっている。   Further, an inner ring 22 of the center bearing support main body 2 shown in FIGS. 2 to 4 is provided at the inner peripheral portion of the elastic support member molding space 11, and an outer ring 23 of the center bearing support main body 2 is provided at the outer peripheral portion. Positioning is set.

すなわち、上述の金型１を用いた成形では、まず弾性支持部材成形空間１１に内環２２及び外環２３を位置決めセットして型締めし、各注入ゲート１２から成形用ゴム材料を注入する。この成形用ゴム材料は、まず弾性支持部材成形空間１１内へ充填され、このうち注入ゲート１２より外周側へ流れる成形用ゴム材料の一部は、周方向等配状に断続した薄バリ成形隙間１５を通じて各バリ成形空間１３へ流れ込み、さらにこのバリ成形空間１３を通じて各マウント本体成形空間１４へ充填される。   That is, in the molding using the above-described mold 1, first, the inner ring 22 and the outer ring 23 are positioned and set in the elastic support member molding space 11 and the mold is clamped, and a molding rubber material is injected from each injection gate 12. This molding rubber material is first filled into the elastic support member molding space 11, and a part of the molding rubber material flowing from the injection gate 12 to the outer peripheral side is a thin burr molding gap intermittently arranged in the circumferential direction. 15 flows into each burr molding space 13 and is further filled into each mount body molding space 14 through this burr molding space 13.

ここで、上述の成形用ゴム材料の賦形過程では、流れの合流部などで気泡が巻き込まれることがあるが、このような気泡は、弾性支持部材成形空間１１から成形用ゴム材料と共にバリ成形空間１３及びマウント本体成形空間１４へ追い出される。そして薄バリ成形隙間１５及びバリ成形空間１３は、弾性支持部材成形空間１１の外周に沿って円弧状に延びていて、周方向等配されているため、弾性支持部材成形空間１１のほぼ周方向全域で上述した気泡の追い出し作用を得ることができる。   Here, in the shaping process of the molding rubber material described above, bubbles may be entrained at the flow confluence, etc., and such bubbles are formed by burr molding together with the molding rubber material from the elastic support member molding space 11. It is expelled to the space 13 and the mount body forming space 14. The thin burr molding gap 15 and the burr molding space 13 extend in an arc shape along the outer periphery of the elastic support member molding space 11 and are arranged at equal intervals in the circumferential direction. The above-described bubble expelling action can be obtained over the entire area.

そして賦形された成形用ゴム材料が架橋硬化することによって、弾性支持部材成形空間１１内では図２及び図３に示すような環状かつ膜状の弾性支持部材２１が成形され、その内周部が内環２２に一体に接着されると共に、外周部が外環２３に一体に接着され、バリ成形空間１３内では円弧状の紐のようなバリ部４が成形され、マウント本体成形空間１４では環状のマウント本体が成形され、さらに薄バリ成形隙間１５では薄バリ５が成形される。なお、薄バリ５は、手指によって容易に破断可能な程度の薄いものである。   Then, when the molded rubber material for molding is cross-linked and cured, an annular and membrane-like elastic support member 21 as shown in FIGS. 2 and 3 is formed in the elastic support member forming space 11, and the inner peripheral portion thereof. Is integrally bonded to the inner ring 22, and the outer peripheral portion is integrally bonded to the outer ring 23. In the burr molding space 13, a burr 4 like an arcuate string is formed, and in the mount body molding space 14 An annular mount body is formed, and a thin burr 5 is formed in the thin burr forming gap 15. The thin burr 5 is thin enough to be easily broken by fingers.

すなわち、上述した成形工程では、図２及び図３に示すように、弾性支持部材２１、内環２２及び外環２３からなるセンターベアリングサポート本体２と、その外周における周方向４等配位置に配置されたマウント本体３１が、それぞれ薄バリ５及び紐状のバリ部４を介して互いに連続した成形物１０が得られる。   That is, in the molding process described above, as shown in FIGS. 2 and 3, the center bearing support body 2 including the elastic support member 21, the inner ring 22 and the outer ring 23, and the circumferentially arranged four circumferential positions on the outer periphery thereof are arranged. The molded body 10 in which the mounted main bodies 31 are continuous with each other through the thin burrs 5 and the string-like burrs 4 is obtained.

この成形物１０は、そのまま納入顧客（例えば自動車工場など）へ納入することができる。そして、自動車への取り付けに際しては、成形物１０からバリ部４を除去することによってセンターベアリングサポート本体２と４個のマウント本体３１を分離し、センターベアリングサポート本体２の外環２３を、図４に示すブラケット６の支持環６１に嵌合一体化し、このブラケット６の左右一対のフランジ６２を、それぞれ上下一対のマウント本体３１及び前記フランジ６２の取付孔６２ａに挿通されるカラー３２からなる防振マウント３を介して、この防振マウント３に挿通されるボルト７及びその軸部７ａと螺合するナット７１によって、不図示の車体メンバーに弾性的に取り付ける。なお、図４における参照符号８はセンターベアリングサポート本体２の内環２２に嵌着されたセンターベアリングである。   The molded product 10 can be delivered to a customer (for example, an automobile factory) as it is. When attaching to the automobile, the center bearing support main body 2 and the four mount main bodies 31 are separated by removing the burr 4 from the molded article 10, and the outer ring 23 of the center bearing support main body 2 is shown in FIG. And a pair of left and right flanges 62 of the bracket 6 are integrated with and integrated with a support ring 61 of the bracket 6 shown in FIG. A bolt 7 inserted into the vibration-proof mount 3 and a nut 71 screwed with the shaft portion 7a are elastically attached to a vehicle body member (not shown) through the mount 3. Note that reference numeral 8 in FIG. 4 is a center bearing fitted to the inner ring 22 of the center bearing support body 2.

そして成形物１０からバリ部４を除去する作業は、バリ部４は、薄バリ５を手指で破断すると共にマウント本体３１側の端部を切断することによって容易に行うことができる。このため輸送や自動車組立ラインでの作業工数を削減することができ、コストの削減が可能となる。   And the operation | work which removes the burr | flash part 4 from the molded article 10 can be easily performed by cutting | disconnecting the thin burr | flash 5 with a finger | toe and cut | disconnecting the edge part by the side of the mount main body 31. FIG. For this reason, it is possible to reduce the work man-hours in the transportation and automobile assembly lines, and it is possible to reduce costs.

また上述のように、成形過程で成形用ゴム材料の合流部などに巻き込まれた気泡は、弾性支持部材成形空間１１から成形用ゴム材料と共にバリ成形空間１３及びマウント本体成形空間１４へ追い出され、しかもこのような気泡の追い出し作用が、弾性支持部材成形空間１１の外周部のほぼ周方向全域で得られるため、弾性支持部材成形空間１１で成形される弾性支持部材２１に気泡による微小欠陥が発生するのを有効に防止することができる。   Further, as described above, the air bubbles caught in the joining portion of the molding rubber material in the molding process are expelled from the elastic support member molding space 11 together with the molding rubber material to the burr molding space 13 and the mount body molding space 14, Moreover, since such a bubble expelling action is obtained in almost the entire circumferential direction of the outer peripheral portion of the elastic support member molding space 11, minute defects due to the bubbles are generated in the elastic support member 21 molded in the elastic support member molding space 11. Can be effectively prevented.

そして上述の成形工程では、マウント本体成形空間１４には弾性支持部材成形空間１１から追い出された気泡がバリ成形空間１３を経て流れ込むことになるが、マウント本体成形空間で成形されたマウント本体は圧縮状態で用いられるため、前記気泡による微小欠陥を生じてもそれによる影響は軽微なものとすることができる。   In the molding process described above, the bubbles expelled from the elastic support member molding space 11 flow into the mount body molding space 14 through the burr molding space 13, but the mount body molded in the mount body molding space is compressed. Since it is used in a state, even if a micro defect caused by the bubble is generated, the influence of the micro defect can be made small.

なお、バリ成形空間１３及び薄バリ成形隙間１５は環状に連続したものであっても良いが、図示の例のように周方向有端の円弧状として、注入ゲート１２及びマウント本体成形空間１４と対応して配置することが好ましい。   The burr molding space 13 and the thin burr molding gap 15 may be continuous in an annular shape. However, as shown in the example in the figure, the burr molding space 13 and the thin burr molding gap 15 are formed as circular arcs with circumferential ends. Corresponding placement is preferred.

また上述の説明では、センターベアリングサポート本体２及びマウント本体３１を自動車へ取り付ける際に、成形物１０からバリ部４を除去することとしたが、このバリ部４は除去しないようにすることも可能である。すなわちセンターベアリングサポート本体２をブラケット６の支持環６１に嵌合一体化すると共に、ブラケット６のフランジ６２にカラー３２と共にマウント本体３１を組み込む作業を、マウント本体３１が紐状のバリ部４を介してセンターベアリングサポート本体２と連結された状態のままで行うことも可能である。このようにすれば、バリ部４の除去工程が不要となる分、コストを一層低減することができる。   In the above description, when the center bearing support main body 2 and the mount main body 31 are attached to the automobile, the burr 4 is removed from the molded product 10, but the burr 4 may not be removed. It is. That is, the center bearing support main body 2 is fitted and integrated with the support ring 61 of the bracket 6 and the mounting main body 31 is assembled together with the collar 32 into the flange 62 of the bracket 6. It is also possible to carry out the process while being connected to the center bearing support body 2. In this way, the cost can be further reduced because the removal process of the burr 4 is not necessary.

次に図５は、他の実施の形態において用いられる金型の概略構成を示すものである。この実施の形態は、金型１を多数個取りとしたものであって、すなわち互いに衝合・分離可能に組み合わされた不図示の複数の分割型の間に、図１と同様、弾性支持部材成形空間１１と、その径方向中間位置における周方向４等配位置に開口した注入ゲート１２と、弾性支持部材成形空間１１の外周側における周方向４等配位置で円弧状に延びるバリ成形空間１３と、各バリ成形空間１３の周方向一端に連続したマウント本体成形空間１４と、前記弾性支持部材成形空間１１の外周縁と各バリ成形空間１３の間の薄バリ成形隙間１５を１組とする成形空間が、複数組（図示の例では４組）形成されている。   Next, FIG. 5 shows a schematic configuration of a mold used in another embodiment. In this embodiment, a large number of molds 1 are obtained. That is, an elastic support member is provided between a plurality of divided molds (not shown) combined so as to be able to collide and separate from each other, as in FIG. A molding space 11, an injection gate 12 that is open at four circumferentially spaced positions in the radial intermediate position thereof, and a burr molding space 13 that extends in an arc shape at the circumferentially uniform 4 position on the outer peripheral side of the elastic support member molding space 11. And a mount body forming space 14 continuous to one end in the circumferential direction of each burr forming space 13, and a thin burr forming gap 15 between the outer peripheral edge of the elastic support member forming space 11 and each burr forming space 13. A plurality of molding spaces (four in the illustrated example) are formed.

そしてこの場合も、マウント本体成形空間１４を、金型１の四隅付近や、各弾性支持部材成形空間１１の間のデッドスペースを利用して配置することができるので、金型１の大型化を防止することができる。   In this case as well, the mount main body forming space 14 can be arranged near the four corners of the mold 1 and using dead spaces between the elastic support member forming spaces 11, so that the size of the mold 1 can be increased. Can be prevented.

１ 金型
１１ 弾性支持部材成形空間
１２ 注入ゲート
１３ バリ成形空間
１４ マウント本体成形空間
１５ 薄バリ成形隙間
２ センターベアリングサポート本体
２１ 弾性支持部材
２２ 内環
２３ 外環
３ 防振マウント
３１
４ バリ部
５ 薄バリ
６ ブラケット 1 Mold 11 Elastic Support Member Molding Space 12 Injection Gate 13 Burr Molding Space 14 Mount Body Molding Space 15 Thin Burr Molding Gap 2 Center Bearing Support Body 21 Elastic Support Member 22 Inner Ring 23 Outer Ring 3 Anti-Vibration Mount 31
4 Burr 5 Thin burr 6 Bracket

Claims (3)

センターベアリングサポート本体の膜状の弾性支持部材を成形する弾性支持部材成形空間と、この弾性支持部材成形空間における成形用ゴム材料の流れの下流位置からバリ成形空間を介して連続した所要数のマウント本体成形空間を有する金型を用い、前記弾性支持部材成形空間へ開口した注入ゲートから成形用ゴム材料を注入することによって、この成形用ゴム材料を、前記弾性支持部材成形空間から前記バリ成形空間を経由してマウント本体成形空間まで充填し、
前記バリ成形空間及び前記マウント本体成形空間が、前記弾性支持部材成形空間の外周に周方向等配形成されたことを特徴とする二重防振構造センターベアリングサポートの製造方法。 An elastic support member molding space for molding the film-like elastic support member of the center bearing support body, and a required number of mounts that are continuous from the downstream position of the flow of the molding rubber material in the elastic support member molding space through the burr molding space The molding rubber material is injected from the elastic support member molding space into the burr molding space by injecting the molding rubber material from an injection gate opened into the elastic support member molding space using a mold having a main body molding space. via the filled to mount the body molding space,
The method for manufacturing a double vibration-proof structure center bearing support, wherein the burr forming space and the mount body forming space are formed in the circumferential direction at equal intervals on the outer periphery of the elastic support member forming space . バリ成形空間が弾性支持部材成形空間の外周に沿って円弧状に延び、マウント本体成形空間が前記バリ成形空間の周方向一端に形成されたことを特徴とする請求項１に記載の二重防振構造センターベアリングサポートの製造方法。 2. The double barrier according to claim 1 , wherein the burr molding space extends in an arc shape along the outer periphery of the elastic support member molding space, and the mount body molding space is formed at one end in the circumferential direction of the burr molding space. Manufacturing method of vibration center bearing support. 弾性支持部材成形空間とバリ成形空間の間に、この弾性支持部材成形空間及びバリ成形空間より流路が狭い薄バリ成形隙間が形成され、この薄バリ成形隙間に、弾性支持部材成形空間で成形される弾性支持部材とバリ成形空間で成形されるバリ部との間で容易に破断可能な薄バリを成形することを特徴とする請求項１〜２のいずれかに記載の二重防振構造センターベアリングサポートの製造方法。 Between the elastic support member molding space and the burr molding space, a thin burr molding gap having a narrower flow path than the elastic support member molding space and the burr molding space is formed, and the thin burr molding gap is molded in the elastic support member molding space. A double anti-vibration structure according to any one of claims 1 to 2 , wherein a thin burr that can be easily broken is formed between the elastic support member that is formed and the burr portion that is formed in the burr forming space. Manufacturing method of center bearing support.
JP2014135814A 2014-07-01 2014-07-01 Manufacturing method of double anti-vibration center bearing support Active JP6383195B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014135814A JP6383195B2 (en) 2014-07-01 2014-07-01 Manufacturing method of double anti-vibration center bearing support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014135814A JP6383195B2 (en) 2014-07-01 2014-07-01 Manufacturing method of double anti-vibration center bearing support

Publications (2)

Publication Number Publication Date
JP2016013742A JP2016013742A (en) 2016-01-28
JP6383195B2 true JP6383195B2 (en) 2018-08-29

Family

ID=55230324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014135814A Active JP6383195B2 (en) 2014-07-01 2014-07-01 Manufacturing method of double anti-vibration center bearing support

Country Status (1)

Country Link
JP (1) JP6383195B2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3700751B2 (en) * 1998-09-14 2005-09-28 Ｎｏｋ株式会社 Molding method and mold for rubber molded product
JP2003094969A (en) * 2001-09-27 2003-04-03 Showa Corp Bracket mounting structure for propeller shaft
JP3794329B2 (en) * 2002-02-04 2006-07-05 Ｎｏｋ株式会社 Mold

Also Published As

Publication number Publication date
JP2016013742A (en) 2016-01-28

Similar Documents

Publication Publication Date Title
US9963862B2 (en) Elastic membrane strainer for a drain
JP5888577B1 (en) Dust cover for ball joint
JP6383195B2 (en) Manufacturing method of double anti-vibration center bearing support
JP5935974B2 (en) Center bearing support
JP6176588B2 (en) Dust cover for ball joint
US9789635B2 (en) Inlet pipe and molding method of inlet pipe
JP6872316B2 (en) Dynamic damper for propeller shaft
JP2012241822A (en) Dynamic damper for hollow shaft
JP5358323B2 (en) Anti-vibration device manufacturing method
JP6175285B2 (en) Anti-vibration device for blower fan and blower fan structure
JP2003343488A (en) Impeller for air blower
JP6824715B2 (en) Dynamic damper
JP6468811B2 (en) Elastomer mold and elastomer molded product
JP2007055170A (en) Mold for molding
JP2008157434A (en) Dynamic damper, method for manufacturing dynamic damper, and propeller shaft
JP6259431B2 (en) Bicycle tube and manufacturing method thereof
JP2013227990A (en) Vibration isolation device and method of manufacturing the same
JP5852943B2 (en) Injection molding method
CN215405568U (en) Reinforced shear spring
JP5265171B2 (en) Manufacturing mold for cylindrical anti-vibration mount
JP6383197B2 (en) Center bearing support mounting structure
JP2007077999A (en) Vibration absorbing device and its manufacturing method
CN113123225A (en) Reinforced shear spring
KR20140022231A (en) A mounting bracket
JP2023131932A (en) Method of manufacturing vibration isolation bush

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20170616

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20180314

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20180322

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180508

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20180704

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20180803

R150 Certificate of patent or registration of utility model

Ref document number: 6383195

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250