JP4941114B2 - Upper support - Google Patents

Upper support Download PDF

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JP4941114B2
JP4941114B2 JP2007151693A JP2007151693A JP4941114B2 JP 4941114 B2 JP4941114 B2 JP 4941114B2 JP 2007151693 A JP2007151693 A JP 2007151693A JP 2007151693 A JP2007151693 A JP 2007151693A JP 4941114 B2 JP4941114 B2 JP 4941114B2
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annular
upper support
annular protrusion
vehicle body
body side
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JP2008303977A (en
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風太 高橋
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Toyota Motor Corp
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Toyota Motor Corp
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Description

本発明は、ショックアブソーバおよびコイルスプリングの車体取付けに利用されるサスペンション用アッパーサポートに関する。   The present invention relates to a suspension upper support used for mounting a shock absorber and a coil spring on a vehicle body.

従来より、悪路において衝撃を緩和し、乗り心地の快適性や操作安定性の向上を図ることなどを目的として、車輪と車体の間にはサスペンションが介装されている。このようなサスペンションとして、ショックアブソーバをストラットとして用いるストラット式サスペンションが知られている。   Conventionally, a suspension is interposed between a wheel and a vehicle body for the purpose of alleviating an impact on a rough road and improving comfort and operation stability. As such a suspension, a strut suspension using a shock absorber as a strut is known.

このストラット式サスペンションは、アッパーサポートを介して車体側取付部に取り付けられる。アッパーサポートは、ショックアブソーバのロッド上端部を挿通する中央孔を有する内筒と、内筒の外側に弾性部材を介して配設される外筒と、外筒から外径方向へ延設されるフランジ部を有する。アッパーサポートは、フランジ部の上面を車体側取付部に接触させ、車体に組み付けられる。   This strut suspension is attached to the vehicle body side attachment portion via an upper support. The upper support is provided with an inner cylinder having a central hole through which the rod upper end of the shock absorber is inserted, an outer cylinder disposed on the outer side of the inner cylinder via an elastic member, and an outer diameter extending from the outer cylinder. Has a flange. The upper support is assembled to the vehicle body by bringing the upper surface of the flange portion into contact with the vehicle body side mounting portion.

ところで、車両の旋回走行などによってショックアブソーバに車輪側から横力が作用すると、アッパーサポートのフランジ部と車体側取付部とが擦れ、異音が発生する場合がある。そこで、特許文献1には、この異音を防止するための技術が提案されている。
特開平9−291965号公報
By the way, when a lateral force acts on the shock absorber from the wheel side due to turning of the vehicle or the like, the flange portion of the upper support and the vehicle body side mounting portion may rub against each other and noise may be generated. Therefore, Patent Document 1 proposes a technique for preventing this abnormal noise.
JP-A-9-291965

しかしながら、特許文献1に記載のアッパーサポートの場合、車体側取付部と接触するのは、ボルト貫通孔の周囲に設けられた突出部のみであるので、接触面積が少なく、十分な取付強度が確保できないおそれがある。   However, in the case of the upper support described in Patent Document 1, since only the projecting portion provided around the bolt through hole is in contact with the vehicle body side mounting portion, the contact area is small and sufficient mounting strength is ensured. It may not be possible.

本発明はこうした状況に鑑みてなされたものであり、その目的は、十分な取付強度を保ちつつ、異音の発生を防止することができるアッパーサポートを提供することにある。   This invention is made | formed in view of such a condition, The objective is to provide the upper support which can prevent generation | occurrence | production of abnormal noise, maintaining sufficient attachment strength.

上記課題を解決するために、本発明のある態様のアッパーサポートは、内筒と、内筒の外側に弾性部材を介して配設される外筒と、外筒から外径方向へ延設されるフランジ部と、を有するアッパーサポートであって、フランジ部の上面から突出する環状の第1環状突出部と、第1環状突出部より大きな径を有してフランジ部の上面から突出する環状の第2環状突出部と、を備える。第1環状突出部と第2環状突出部は、同心状に形成されている。当該アッパーサポートを車体の取付部に取り付けたときに、第1環状突出部の先端部および第2環状突出部の先端部が車体側取付部に接触し、当該アッパーサポートと車体側取付部の接触面の形状が2つの同心円形状となる。 In order to solve the above problems, an upper support according to an aspect of the present invention includes an inner cylinder, an outer cylinder disposed outside the inner cylinder via an elastic member, and extends from the outer cylinder in the outer diameter direction. An upper support having a flange portion, and an annular first annular projecting portion projecting from the upper surface of the flange portion, and an annular projecting from the upper surface of the flange portion having a larger diameter than the first annular projecting portion. A second annular protrusion. The first annular protrusion and the second annular protrusion are formed concentrically. When the upper support mounted on the vehicle body mounting portion, the tip portion of the distal end of the first annular protrusion and the second annular protrusion is in contact with the car body side mounting portion, the contact of the upper support and the vehicle body side mounting portion The shape of the surface is two concentric circles.

この態様によると、第1環状突出部の先端部と第2環状突出部の先端部が車体側取付部と接触するので、接触面圧が安定し、異音の発生を防止することができる。また、第1環状突出部と第2環状突出部の2つの環状突出部で車体側取付部と接触する構成としているので、接触面積が十分確保され、十分な取付強度を保つことができる。さらに、アッパーサポートは、ショックアブソーバのロッドに対するこじり入力を受けるが、同心状に配設された第1環状突出部および第2環状突出部により、どの方向の入力対しても安定的な取付剛性を発揮することができる。   According to this aspect, the tip end portion of the first annular projecting portion and the tip end portion of the second annular projecting portion are in contact with the vehicle body side mounting portion, so that the contact surface pressure is stabilized and the generation of abnormal noise can be prevented. Moreover, since it is set as the structure which contacts a vehicle body side attaching part by the two annular protrusion parts of a 1st annular protrusion part and a 2nd annular protrusion part, a contact area is fully ensured and sufficient attachment strength can be maintained. Furthermore, the upper support receives a twisting input to the rod of the shock absorber, but the first annular protrusion and the second annular protrusion arranged concentrically provide a stable mounting rigidity in any direction. It can be demonstrated.

本発明によれば、十分な取付強度を保ちつつ、異音の発生を防止することができるアッパーサポートを提供できる。   ADVANTAGE OF THE INVENTION According to this invention, the upper support which can prevent generation | occurrence | production of abnormal noise can be provided, maintaining sufficient attachment strength.

図1は、本発明の実施の形態に係るアッパーサポート10の概略断面図である。図1に示すように、アッパーサポート10は、内筒11と、弾性体14と、外筒16を備える。   FIG. 1 is a schematic cross-sectional view of an upper support 10 according to an embodiment of the present invention. As shown in FIG. 1, the upper support 10 includes an inner cylinder 11, an elastic body 14, and an outer cylinder 16.

内筒11は、第1内筒12と第2内筒13を含む。第1内筒12と第2内筒13の底面同士が溶接により連結され、内筒11が構成されている。内筒11は、鋼製であり、その中央部に、ショックアブソーバのロッド上端部を挿通するための挿通孔11aを有する。   The inner cylinder 11 includes a first inner cylinder 12 and a second inner cylinder 13. The bottom surfaces of the first inner cylinder 12 and the second inner cylinder 13 are connected by welding to form the inner cylinder 11. The inner cylinder 11 is made of steel, and has an insertion hole 11a for inserting the upper end portion of the shock absorber rod at the center thereof.

外筒16は、鋼製であり、第1内筒12の外側に所定距離を隔てて同心状に配置される。第1内筒12と外筒16との間には、加硫ゴム材料などの弾性体14が介在し、走行時の振動を減衰している。なお、外筒16は、弾性体14に加硫接着されている。   The outer cylinder 16 is made of steel, and is concentrically arranged at a predetermined distance outside the first inner cylinder 12. An elastic body 14 such as a vulcanized rubber material is interposed between the first inner cylinder 12 and the outer cylinder 16 to dampen vibration during traveling. The outer cylinder 16 is vulcanized and bonded to the elastic body 14.

外筒16は、その縁部から外径方向へ延設されるフランジ部18を有する。フランジ部18は、外筒16の一方の端部を折り曲げることにより形成される。フランジ部18は、フランジ部18の上面から突出する環状の第1環状突出部20と、第1環状突出部20より大きな径を有してフランジ部18の上面から突出する環状の第2環状突出部22を有する。第1環状突出部20と第2環状突出部22は、径方向に所定距離隔てて、同心状に形成されている。この第1環状突出部20と第2環状突出部22は、外筒16を折り曲げることにより形成される。このように第1環状突出部20と第2環状突出部22を形成することにより、第1環状突出部20と第2環状突出部22の間には、平坦部24が形成される。   The outer cylinder 16 has a flange portion 18 extending from the edge portion in the outer diameter direction. The flange portion 18 is formed by bending one end portion of the outer cylinder 16. The flange portion 18 has an annular first annular projection 20 projecting from the upper surface of the flange portion 18 and an annular second annular projection projecting from the upper surface of the flange portion 18 having a larger diameter than the first annular projection 20. Part 22. The first annular protrusion 20 and the second annular protrusion 22 are formed concentrically at a predetermined distance in the radial direction. The first annular protrusion 20 and the second annular protrusion 22 are formed by bending the outer cylinder 16. By forming the first annular protrusion 20 and the second annular protrusion 22 in this way, a flat portion 24 is formed between the first annular protrusion 20 and the second annular protrusion 22.

図2は、アッパーサポート10を車体側取付部100に取り付けた状態を示す図である。図2に示すように、第1環状突出部20の先端部および第2環状突出部22の先端部が車体側取付部100の下面に接触しており、第1環状突出部20と第2環状突出部22の間の平坦部24は、車体側取付部100に接触していない。すなわち、アッパーサポート10と車体側取付部100の接触面の形状は、2つの同心円形状となる。   FIG. 2 is a view showing a state in which the upper support 10 is attached to the vehicle body side attaching portion 100. As shown in FIG. 2, the distal end of the first annular protrusion 20 and the distal end of the second annular protrusion 22 are in contact with the lower surface of the vehicle body side mounting portion 100, and the first annular protrusion 20 and the second annular protrusion The flat portion 24 between the projecting portions 22 is not in contact with the vehicle body side mounting portion 100. That is, the shape of the contact surface between the upper support 10 and the vehicle body side mounting portion 100 is two concentric circular shapes.

フランジ部18に第1環状突出部20および第2環状突出部22を形成せずに、平坦な面で車体側取付部100と接触させた場合、車体側取付部100およびフランジ部18の平面度のバラツキなどにより、フランジ部18と車体側取付部100の接触面圧に分布が発生し、これが異音の発生の原因となる。   When the flange portion 18 is not formed with the first annular protrusion 20 and the second annular protrusion 22 and is brought into contact with the vehicle body side attachment portion 100 on a flat surface, the flatness of the vehicle body side attachment portion 100 and the flange portion 18 is determined. As a result of the variation, the contact surface pressure between the flange portion 18 and the vehicle body side mounting portion 100 is distributed, which causes abnormal noise.

本実施の形態に係るアッパーサポート10では、第1環状突出部20の先端部と第2環状突出部22の先端部が車体側取付部100と接触するので、接触面圧が安定し、異音の発生を防止することができる。   In the upper support 10 according to the present embodiment, the front end portion of the first annular projecting portion 20 and the front end portion of the second annular projecting portion 22 are in contact with the vehicle body side mounting portion 100, so that the contact surface pressure is stabilized and abnormal noise is generated. Can be prevented.

また、本実施の形態では、第1環状突出部20と第2環状突出部22の2つの環状突出部で車体側取付部100と接触する構成としているので、接触面積が十分確保され、十分な取付強度を保つことができる。   Moreover, in this Embodiment, since it is set as the structure which contacts the vehicle body side attaching part 100 with the two annular protrusion parts, the 1st annular protrusion part 20 and the 2nd annular protrusion part 22, a contact area is ensured enough and sufficient. Mounting strength can be maintained.

さらに、アッパーサポート10は、ショックアブソーバのロッドに対するこじり入力を受けるが、同心状に配設された第1環状突出部20および第2環状突出部22により、どの方向の入力に対しても安定的な取付剛性を発揮することができる。   Further, the upper support 10 receives a twisting input to the shock absorber rod, but is stable in any direction by the first annular protrusion 20 and the second annular protrusion 22 arranged concentrically. Can exhibit high mounting rigidity.

第1環状突出部20と第2環状突出部22は、車体側取付部100の下面と平坦部24との間の距離tが、フランジ部18の板厚の半分程度になるよう形成することが好ましい。たとえば、フランジ部18の板厚が2〜4mmの場合は、距離tが1〜2mmとなるように第1環状突出部20と第2環状突出部22を形成する。このように形成することにより、アッパーサポート10の強度耐久性を十分に確保することができる。   The first annular projecting portion 20 and the second annular projecting portion 22 may be formed such that the distance t between the lower surface of the vehicle body side mounting portion 100 and the flat portion 24 is about half the plate thickness of the flange portion 18. preferable. For example, when the plate thickness of the flange 18 is 2 to 4 mm, the first annular protrusion 20 and the second annular protrusion 22 are formed so that the distance t is 1 to 2 mm. By forming in this way, the strength durability of the upper support 10 can be sufficiently ensured.

本実施の形態では、外筒16を折り曲げてフランジ部18を形成する工程において、第1環状突出部20と第2環状突出部22を形成しているので、製造工程を簡易なものとすることができる。また、別途他の部材を必要としないので、コスト面において有利である。   In the present embodiment, the first annular projecting portion 20 and the second annular projecting portion 22 are formed in the step of bending the outer cylinder 16 to form the flange portion 18, thereby simplifying the manufacturing process. Can do. Moreover, since no other member is required separately, it is advantageous in terms of cost.

以上、実施の形態をもとに本発明を説明した。これらの実施形態は例示であり、各構成要素や各処理プロセスの組合せにいろいろな変形例が可能なこと、またそうした変形例も本発明の範囲にあることは当業者に理解されるところである。   The present invention has been described above based on the embodiment. It should be understood by those skilled in the art that these embodiments are exemplifications, and that various modifications can be made to the combination of each component and each processing process, and such modifications are also within the scope of the present invention.

たとえば、上述の実施の形態では、2つの環状突出部をフランジ部に形成したが、環状突出部は2つに限定されず、2つ以上形成されてもよい。   For example, in the above-described embodiment, the two annular protrusions are formed in the flange portion. However, the number of the annular protrusions is not limited to two, and two or more may be formed.

本発明の実施の形態に係るアッパーサポートの概略断面図である。It is a schematic sectional drawing of the upper support which concerns on embodiment of this invention. アッパーサポートを車体側取付部に取り付けた状態を示す図である。It is a figure which shows the state which attached the upper support to the vehicle body side attaching part.

符号の説明Explanation of symbols

10 アッパーサポート、 11 内筒、 16 外筒、 18 フランジ部、 20 第1環状突出部、 22 第2環状突出部、 100 車体側取付部。   10 upper support, 11 inner cylinder, 16 outer cylinder, 18 flange part, 20 first annular projection part, 22 second annular projection part, 100 vehicle body side attachment part.

Claims (1)

内筒と、前記内筒の外側に弾性部材を介して配設される外筒と、前記外筒から外径方向へ延設されるフランジ部と、を有するアッパーサポートであって、
前記フランジ部の上面から突出する環状の第1環状突出部と、
前記第1環状突出部より大きな径を有して前記フランジ部の上面から突出する環状の第2環状突出部と、
を備え
前記第1環状突出部と前記第2環状突出部は、同心状に形成されており、
当該アッパーサポートを車体側取付部に取り付けたときに、前記第1環状突出部の先端部および前記第2環状突出部の先端部が車体側取付部に接触し、当該アッパーサポートと車体側取付部の接触面の形状が2つの同心円形状となることを特徴とするアッパーサポート。
An upper support having an inner cylinder, an outer cylinder disposed on the outer side of the inner cylinder via an elastic member, and a flange portion extending from the outer cylinder in the outer diameter direction,
An annular first annular projecting portion projecting from the upper surface of the flange portion;
An annular second annular projection having a larger diameter than the first annular projection and projecting from the upper surface of the flange portion;
Equipped with a,
The first annular protrusion and the second annular protrusion are formed concentrically,
When the upper support is attached to the vehicle body side attachment portion, the tip end portion of the first annular protrusion portion and the tip end portion of the second annular protrusion portion are in contact with the vehicle body side attachment portion, and the upper support and the vehicle body side attachment portion are The upper support is characterized in that the shape of the contact surface is two concentric circles .
JP2007151693A 2007-06-07 2007-06-07 Upper support Expired - Fee Related JP4941114B2 (en)

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JP4941114B2 true JP4941114B2 (en) 2012-05-30

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JP2013122252A (en) * 2011-12-09 2013-06-20 Bridgestone Corp Strut mount

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