JP2005280490A - Support beam for air suspension - Google Patents

Support beam for air suspension Download PDF

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Publication number
JP2005280490A
JP2005280490A JP2004097284A JP2004097284A JP2005280490A JP 2005280490 A JP2005280490 A JP 2005280490A JP 2004097284 A JP2004097284 A JP 2004097284A JP 2004097284 A JP2004097284 A JP 2004097284A JP 2005280490 A JP2005280490 A JP 2005280490A
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support beam
main beam
main
support
sub
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JP4456395B2 (en
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Takashi Shirai
崇 白井
Yuichi Nakamura
雄一 中村
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Hino Motors Ltd
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Hino Motors Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/15—Fluid spring
    • B60G2202/152—Pneumatic spring
    • B60G2202/1524—Pneumatic spring with two air springs per wheel, arranged before and after the wheel axis

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  • Vehicle Body Suspensions (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To effectively manufacture a support beam of a number of specifications in an efficient state while sharing a main body part of the support beam. <P>SOLUTION: The support beam is provided with a main beam 4 with mounting parts 4a of an axle 2 formed respectively on upper and lower surfaces of a center part, and a side beam 5 with mounting parts 5a of an air spring 1 respectively formed on upper and lower surfaces. The respective main beam 4 and side beam 5 are vertically symmetrically formed, and the front and rear side beams 5 formed in a same shape are connected on front and rear ends of the main beam 4 to integrate. Thereby, mass production effect is obtained by using the common main beam 4 in the support beam 3 of the different specification. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は車両の懸架手段の一つとして用いられるエアサスペンション用のサポートビームに係り、特に、製造コストを低減するに有効なサポートビームに関するものである。   The present invention relates to a support beam for an air suspension used as one of vehicle suspension means, and more particularly to a support beam effective for reducing the manufacturing cost.

車両用エアサスペンションに用いられるサポートビームを構成するに際して、従来では車両の仕様ごとにそれぞれ別のサポートビームを設計して製造することが多かった。   When constructing a support beam used in a vehicle air suspension, conventionally, a separate support beam is often designed and manufactured for each vehicle specification.

ところが、このように車両の仕様ごとに別のサポートビームを用いる場合は、仕様の多様化にともなってサポートビームの種類が多くなってしまうために量産効果を得難いという不具合があった。そこで、近年では、前後端にエアスプリングの取付部を設けた標準仕様のサポートビームに、エアスプリングに取付部を設けた補助的なビームを結合することにより、標準仕様のサポートビームをワイド仕様のサポートビームの一部として利用するようにしたものがある（例えば特許文献１を参照）。   However, when different support beams are used for each vehicle specification as described above, there is a problem in that it is difficult to obtain a mass production effect because the types of support beams increase with diversification of specifications. Therefore, in recent years, by combining an auxiliary beam with a mounting part on the air spring with a standard support beam with an air spring mounting part at the front and rear ends, the standard support beam can be Some are used as part of a support beam (see, for example, Patent Document 1).

しかしながら、このように標準仕様のサポートビームの全体をワイド仕様の一部として利用するようにしたものでは、標準仕様のサポートビームに形成されているエアスプリングの取付部がワイド仕様のサポートビームを構成した場合は無駄になってしまうために、ワイド仕様のサポートビームの製造コストを低減するにも限界があった。
実開平３−７１９０７号公報 However, in the case where the entire standard support beam is used as part of the wide specification in this way, the mounting portion of the air spring formed on the standard support beam constitutes the wide specification support beam. In this case, there is a limit to reducing the manufacturing cost of the wide specification support beam.
Japanese Utility Model Publication No. 3-71907

解決しようとする問題点は、サポートビームの主体部を共用化しつつ、無駄のない状態で多仕様のサポートビームを効率よく製造することができない点である。   The problem to be solved is that a multi-spec support beam cannot be efficiently manufactured in a lean state while sharing the main part of the support beam.

本発明にかかるサポートビームは、アクスルの取付部を中央部上下面にそれぞれ形成した主ビームと、エアスプリングの取付部を上下面にそれぞれ形成した副ビームを備えている。そして、前記主ビームおよび副ビームをそれぞれ上下対称形に形成する一方、同一形状に構成した前後の副ビームを前記主ビームの前後端に結合してこれらを一体化したことを最も主要な特徴としている。   The support beam according to the present invention includes a main beam in which an axle mounting portion is formed on the upper and lower surfaces of the central portion, and a sub beam in which an air spring mounting portion is formed on the upper and lower surfaces, respectively. The main feature is that the main beam and the sub beam are formed symmetrically in the vertical direction, and the front and rear sub beams configured in the same shape are coupled to the front and rear ends of the main beam to integrate them. Yes.

本発明のサポートビームは、サポートビームを、アクスルの取付部を形成した主ビームと、この主ビームの前後端に結合された副ビームで構成し、この副ビームにエアスプリングの取付部を形成したために、共通の主ビームを用いるにも拘らず、主ビームに結合される副ビームの形状を異ならせることでサポートビームの仕様を容易に変化させることができる。   In the support beam of the present invention, the support beam is composed of a main beam in which an axle mounting portion is formed and a secondary beam coupled to the front and rear ends of the main beam, and an air spring mounting portion is formed in the secondary beam. In addition, although the common main beam is used, the specification of the support beam can be easily changed by changing the shape of the sub beam coupled to the main beam.

また、主ビームおよび副ビームを上下対称似形成し、かつ、前後の副ビームを同一形状にしているために、同一形状の主ビームおよび副ビームを用いて左右のサポートビームを構成することができるとともに、前後の副ビームを共用化することができる。従って、主ビームはもとより、副ビームの量産効果を高くすることが可能になり、しかも、無駄のない状態で異なり仕様のサポートビームを構成することができるために、サポートビームの製造コストを低減することが可能になるという利点がある。   Further, since the main beam and the sub beam are formed symmetrically in the vertical direction and the front and rear sub beams have the same shape, the left and right support beams can be configured using the main beam and the sub beam having the same shape. At the same time, the front and rear sub-beams can be shared. Accordingly, it is possible to increase the mass production effect of the sub beam as well as the main beam, and further, it is possible to construct a support beam having different specifications without waste, thereby reducing the manufacturing cost of the support beam. There is an advantage that it becomes possible.

図１は本発明に係るサポートビームを用いたエアサスペンションの一実施形態を示す概略平面図、図２は図１の側面図である。   FIG. 1 is a schematic plan view showing an embodiment of an air suspension using a support beam according to the present invention, and FIG. 2 is a side view of FIG.

これらの図において、図示しない車体にエアスプリング１を介してアクスル２を懸架するエアサスペンション用のサポートビーム３は、中央部上下面にアクスル２の取付部４ａを形成するとともに、前後端に結合フランジ４ｂを形成した主ビーム４と、エアスプリング１の取付部５ａおよびショックアブソーバ６の取付部５ｂを上下面にそれぞれ形成する一方、前記結合フランジ４ｂに対応する結合フランジ５ｃを基端に形成した前後一対の副ビーム５で主要部を構成している。４ｃはロアトルクロッド７の結合部、８はアッパトルクロッド、９はタイヤである。   In these drawings, a support beam 3 for an air suspension for suspending an axle 2 on a vehicle body (not shown) via an air spring 1 has a mounting portion 4a for the axle 2 formed on the upper and lower surfaces of the central portion, and a coupling flange at the front and rear ends. The main beam 4 formed with 4b, the mounting portion 5a of the air spring 1 and the mounting portion 5b of the shock absorber 6 are formed on the upper and lower surfaces, respectively, while the coupling flange 5c corresponding to the coupling flange 4b is formed at the base end A pair of sub beams 5 constitutes a main part. 4c is a connecting portion of the lower torque rod 7, 8 is an upper torque rod, and 9 is a tire.

前記主ビーム４および副ビーム５は、いずれも上下対称の形状をなすダクタイル鋳鉄製であり、前後の副ビーム５は共通の型を用いて製造される。そして、主ビーム４の結合フランジ４ｂに副ビーム５の結合フランジ５ｃを接合させてこれらをボルト１０で締付固定することにより、主ビーム４の前後端にそれぞれ副ビーム５を結合一体化してして一本のサポートビーム３を構成している。なお、左右のサポートビーム３は左右対称形であり、一方のサポートビームの上下を反転して他方のサポートビームとしている。   The main beam 4 and the sub beam 5 are both made of ductile cast iron having a vertically symmetrical shape, and the front and rear sub beams 5 are manufactured using a common mold. Then, by joining the coupling flange 5c of the sub beam 5 to the coupling flange 4b of the main beam 4 and fastening them with bolts 10, the sub beam 5 is coupled and integrated with the front and rear ends of the main beam 4, respectively. A single support beam 3 is formed. The left and right support beams 3 are symmetrical, and one support beam is turned upside down to form the other support beam.

従って、本実施形態による場合は、サポートビームを一体型のダクタイル鋳鉄品で構成する場合に対比して、その成形型を小型化することができる利点がある。   Therefore, according to the present embodiment, there is an advantage that the mold can be downsized as compared with the case where the support beam is formed of an integral ductile cast iron product.

上記実施形態においては、主ビーム４の延長線上にエアスプリング１の取付部５ａおよびショックアブソーバ６の取付部５ｂを位置させる副ビーム５を用いているが、車両の型式によってはエアスプリング１およびショックアブソーバ６をサポートビーム３の外側にオフセットさせたワイド仕様のエアサスペンションを構成する場合がある。すなわち、図３は本発明に係るサポートビームを用いたエアサスペンションの他の実施形態を示す概略平面図、図４は図３の側面図である。   In the above-described embodiment, the auxiliary beam 5 for positioning the mounting portion 5a of the air spring 1 and the mounting portion 5b of the shock absorber 6 on the extension line of the main beam 4 is used. However, depending on the type of vehicle, the air spring 1 and the shock A wide specification air suspension in which the absorber 6 is offset to the outside of the support beam 3 may be configured. 3 is a schematic plan view showing another embodiment of an air suspension using a support beam according to the present invention, and FIG. 4 is a side view of FIG.

本実施形態においては、上記実施形態の主ビーム４と全く同一仕様の主ビーム４を用い、図３に示したように先端に至るにつれて外側にオフセットする屈折形状の副ビーム５を用いることにより、エアスプリング１の取付部５ａを主ビーム４の外方にオフセットさせるとともに、エアスプリング１の取付部５ａよりさらに外方にオフセットする位置にショックアブソーバ６の取付部５ｂを形成している。なお、本実施形態の場合にあっても、前記実施形態とは形状が異なるが、共通の型を用いて副ビーム５を製造する。   In the present embodiment, by using the main beam 4 having exactly the same specifications as the main beam 4 of the above-described embodiment, and using the sub beam 5 having a refractive shape that is offset outward as it reaches the tip, as shown in FIG. The mounting portion 5a of the air spring 1 is offset to the outside of the main beam 4, and the mounting portion 5b of the shock absorber 6 is formed at a position offset further outward from the mounting portion 5a of the air spring 1. Even in the case of this embodiment, although the shape is different from that of the above embodiment, the sub beam 5 is manufactured using a common mold.

従って、共通の主ビーム４を用いるにも拘らず、この主ビーム４に連結される副ビーム５を変更するのみで標準仕様とワイド仕様のサポートビーム３を構成することができるために、車両の仕様が多様化された場合にも、主ビーム４を共通化して量産効果を得ることができる。   Therefore, although the common main beam 4 is used, the support beam 3 of the standard specification and the wide specification can be configured only by changing the sub beam 5 connected to the main beam 4. Even when the specifications are diversified, the main beam 4 can be shared to obtain a mass production effect.

なお、実施形態では標準型式のサポートビームとワイド型式のサポートビームを構成する場合について説明しているが、主ビーム４の前後端に連結される副ビーム５の形状を変化させることによってサポートビームの仕様を多様化することができるものであり、この場合においても共通の主ビームを用いることができるために、車両の仕様が多岐にわたる場合であっても、共通に用いられる主ビームの量産効果によってサポートビーム３の製造コストを低減することができる。また、実施形態ではいずれも結合フランジ４ｂ、５ｃとボルト１０を用いて主ビーム４の前後端に副ビーム５を結合するようにしているが、結合構造は必ずしも実施形態に示したものに限定されるものではなく、差込構造など他の結合構造を採用することもできる。   In the embodiment, the case where the standard type support beam and the wide type support beam are configured has been described. However, the shape of the sub beam 5 connected to the front and rear ends of the main beam 4 is changed to change the shape of the support beam. The specifications can be diversified, and even in this case, a common main beam can be used. Therefore, even if the specifications of the vehicle are diverse, due to the mass production effect of the main beam used in common. The manufacturing cost of the support beam 3 can be reduced. In the embodiments, the sub-beams 5 are coupled to the front and rear ends of the main beam 4 using the coupling flanges 4b and 5c and the bolts 10. However, the coupling structure is not necessarily limited to that shown in the embodiment. However, other connection structures such as a plug-in structure may be employed.

本発明に係るサポートビームを用いたエアサスペンションの一実施形態を示す概略平面図である。1 is a schematic plan view showing an embodiment of an air suspension using a support beam according to the present invention. 図１の側面図である。It is a side view of FIG. 本発明に係るサポートビームを用いたエアサスペンションの他の実施形態を示す概略平面図である。It is a schematic plan view which shows other embodiment of the air suspension using the support beam which concerns on this invention. 図３の側面図である。FIG. 4 is a side view of FIG. 3.

符号の説明Explanation of symbols

１ エアスプリング
２ アクスル
３ サポートビーム
４ 主ビーム
４ａ アクスルの取付部
４ｂ 結合フランジ
５ 副ビーム
５ａ エアスプリングの取付部
５ｂ ショックアブソーバの取付部
５ｃ 結合フランジ
６ ショックアブソーバ
７ ロアトルクロッド
８ アッパトルクロッド
９ タイヤ
１０ ボルト DESCRIPTION OF SYMBOLS 1 Air spring 2 Axle 3 Support beam 4 Main beam 4a Axle mounting part 4b Coupling flange 5 Sub beam 5a Air spring mounting part 5b Shock absorber mounting part 5c Coupling flange 6 Shock absorber 7 Lower torque rod 8 Upper torque rod 9 Tire 10 volts

Claims (1)

前後端にエアスプリング（１）の取付部（５ａ）を形成する一方、中央部分にアクスル（２）の取付部（４ａ）を形成したエアサスペンション用のサポートビーム（３）であって、アクスル（２）の取付部（４ａ）を中央部上下面にそれぞれ形成した主ビーム（４）と、エアスプリング（１）の取付部（５ａ）を上下面にそれぞれ形成した副ビーム（５）を備え、前記主ビーム（４）および副ビーム（５）をそれぞれ上下対称形に形成する一方、同一形状に構成した前後の副ビーム（５）を前記主ビーム（４）の前後端に結合してこれらを一体化したことを特徴とする車両のエアサスペンション用サポートビーム。   A support beam (3) for an air suspension having an attachment portion (5a) for the air spring (1) at the front and rear ends and an attachment portion (4a) for the axle (2) at the center portion. 2) provided with a main beam (4) in which the attachment part (4a) of the central part is formed on the upper and lower surfaces of the central part, and a sub beam (5) in which the attachment part (5a) of the air spring (1) is formed on the upper and lower surfaces, respectively. The main beam (4) and the sub beam (5) are respectively formed symmetrically in the vertical direction, and the front and rear sub beams (5) configured in the same shape are coupled to the front and rear ends of the main beam (4) to form them. A support beam for an air suspension of a vehicle characterized by being integrated.
JP2004097284A 2004-03-30 2004-03-30 Support beam for air suspension Expired - Fee Related JP4456395B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100644464B1 (en) 2005-07-07 2006-11-10 현대자동차주식회사 Support beam structure of suspension
KR100764485B1 (en) * 2005-12-12 2007-10-08 현대자동차주식회사 Support beam for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100644464B1 (en) 2005-07-07 2006-11-10 현대자동차주식회사 Support beam structure of suspension
KR100764485B1 (en) * 2005-12-12 2007-10-08 현대자동차주식회사 Support beam for vehicle

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