WO2014147834A1 - Bras de suspension et procédé de fabrication pour bras de suspension - Google Patents

Bras de suspension et procédé de fabrication pour bras de suspension Download PDF

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Publication number
WO2014147834A1
WO2014147834A1 PCT/JP2013/058383 JP2013058383W WO2014147834A1 WO 2014147834 A1 WO2014147834 A1 WO 2014147834A1 JP 2013058383 W JP2013058383 W JP 2013058383W WO 2014147834 A1 WO2014147834 A1 WO 2014147834A1
Authority
WO
WIPO (PCT)
Prior art keywords
bush
mounting hole
hole
bush mounting
arm
Prior art date
Application number
PCT/JP2013/058383
Other languages
English (en)
Japanese (ja)
Inventor
豊 黒井
真二 川野
Original Assignee
株式会社ヨロズ
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 株式会社ヨロズ filed Critical 株式会社ヨロズ
Priority to PCT/JP2013/058383 priority Critical patent/WO2014147834A1/fr
Priority to JP2015506520A priority patent/JP6317330B2/ja
Publication of WO2014147834A1 publication Critical patent/WO2014147834A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B60G2206/11—Constructional features of arms the arm being a radius or track or torque or steering rod or stabiliser end link
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8102—Shaping by stamping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/82—Joining
    • B60G2206/8209—Joining by deformation

Definitions

  • the present invention relates to a suspension arm used in a vehicle wheel suspension system and a method for manufacturing the suspension arm.
  • a suspension arm used in a wheel suspension system for example, a suspension arm described in Patent Document 1 is known.
  • This suspension arm has a structure in which collars are fixed to both ends of the arm body, and bracket mounting bushes are fixed in each collar by press-fitting, and one bush is a support bolt or support for the bracket on the wheel side.
  • the other bush is rotatably connected to the support bolt or support shaft of the bracket on the vehicle body side and used.
  • the collar is fixed to the arm body by, for example, welding.
  • a suspension arm as described in Patent Document 2 (FIG. 1) has been developed. Since the suspension arm here is constructed by connecting a pair of arm plates in which the collar part and the arm body part are integrally formed back to back, there is a problem of insufficient welding between the arm body and the collar. It does not occur and excessive stress concentration does not occur at the connection point to the bracket.
  • a suspension arm constructed by joining a pair of arm plates, in which a collar portion and an arm main body portion are integrally formed, back to back is also described in Patent Document 3 (FIGS. 5 and 6).
  • the present invention provides a suspension arm for a vehicle configured by connecting a pair of arm plates, and provides a suspension arm that can stably support a mounting bush, and a method for manufacturing such a suspension arm for a vehicle. With the goal.
  • a vehicle suspension arm is a vehicle suspension arm, and includes a first arm plate having a reinforcing rising portion formed at a peripheral edge, and a reinforcing rising edge at a peripheral edge. And a second arm plate connected to the first arm plate, wherein the first arm plate has first end portions in the longitudinal direction in which the first bush mounting holes are formed. 1 bush attachment portion, a first connection portion in the middle in the length direction, and a first offset portion between the first connection portion and the first bush attachment portion, integrally.
  • the second arm plate has a second bush mounting portion at both ends in the length direction in which a second bush mounting hole is formed, and the rising portions of the first connection portion face outward.
  • the first offset portion and the second offset portion are bent or curved outward so as to separate the first bush attachment portion and the second bush attachment portion, respectively.
  • the bush mounting hole has a first burring flange projecting outward or inward, and the second bush mounting hole has a second burring flange projecting outward or inward.
  • the first bush mounting portion of the first arm plate and the second bush mounting portion of the second arm plate are not adjacent but separated in the axial direction.
  • the first bush mounting hole and the second bush mounting hole can firmly support both axial ends of the bush (for example, the outer annular body of the bush), so that the fixing strength of the bush can be increased. It becomes.
  • both axial ends of the bush are formed.
  • the first burring flange and the second burring flange may be formed so as to protrude inward as long as the first bushing mounting portion and the second bushing mounting portion have a large degree of separation.
  • the both ends of the bush in the axial direction can be supported.
  • the first burring flange and the second burring flange can be easily provided when forming the first arm plate and the second arm plate.
  • the first connection portion or the second connection portion by plastic deformation or caulking (including plastic deformation or caulking of both the first connection portion and the second connection portion). It is preferable to connect the two connecting portions. Specifically, a fixing hole is provided in the first connecting portion, and a fixing burring flange that is passed through the fixing hole is formed in the second connecting portion, and the fixing burring flange that is passed through the fixing hole is formed. The tip end portion is engaged with the fixing hole or the periphery of the fixing hole by plastic deformation or caulking, and the first connecting portion and the second connecting portion are fixed and connected.
  • the fixing hole and the fixing burring flange can be formed in a circular shape, but may have other shapes such as a square shape.
  • One side mounting bushing is press-fitted into the first bushing mounting hole on one side and the second bushing mounting hole on one side, and the first bushing mounting hole on the other side and the second bushing mounting on the other side are mounted.
  • the suspension arm can be configured by press-fitting the other mounting bush into the hole.
  • a vehicle suspension arm manufacturing method is a vehicle suspension arm manufacturing method, comprising: a first bushing hole having a first burring flange; The first bush mounting portion, the first connection portion at the intermediate portion in the longitudinal direction, and the first offset portion between the first connection portion and the first bush mounting portion are integrally provided. And second bushing attachments at both ends in the longitudinal direction in which a first arm plate formed with protruding rising portions at the periphery and a second bushing attachment hole having a second burring flange are formed.
  • a preparatory step of preparing a second arm plate formed by protruding a beam portion, and abutting the second connection portion with the first connection portion so that the rising portions of each other face outward The positioning step, the first bush mounting hole on one side and the second bush mounting hole on one side are positioned coaxially, and the first bush mounting hole on the other side and the second bush on the other side
  • a positioning step of coaxially positioning the bush mounting hole and the axial direction of the first bush mounting hole on one side and the second bush mounting hole on one side, or the first bush mounting on the other side By pressing the first connection part or the second connection part in the axial direction of the hole and the second bushing attachment hole on the other side, and plastically deforming or caulking (the first connection part and And connecting the first connecting portion and the second connecting portion fixedly connected to each other.
  • the reinforcing rising portion of the first arm plate can be formed so as to protrude in the same direction as the first burring flange.
  • the reinforcing rising portion of the second arm plate can be formed so as to protrude in the same direction as the second burring flange.
  • the axial direction of the first bush mounting hole on one side and the second bush mounting hole on one side and the axial direction of the first bush mounting hole on the other side and the second bush mounting hole on the other side are, for example, The same direction.
  • the pressure member In order to pressurize and plastically deform or caulk the first connection part or the second connection part, for example, the pressure member is moved in the axial direction of the bush mounting hole to thereby make the first connection part or the second connection.
  • the part may be pressurized and plastically deformed or caulked.
  • connection For example, if a positioning and pressing member that performs positioning (for example, press-fitting of a mounting bush) and pressurization is configured and this positioning and pressing member is moved (for example, lowered) in one direction to perform positioning and pressing, connection The process and the positioning process are performed at the same time.
  • the positioning pressure member may be operated in one step.
  • the first bush mounting hole on the one side and the second bush on the one side are pressed by press-fitting the mounting bush on the one side into the first bush mounting hole on the one side and the second bush mounting hole on the one side.
  • the first bushing on the other side is press-fitted into the first bushing mounting hole on the other side and the second bushing mounting hole on the other side by press-fitting the bushing mounting hole on the other side.
  • the mounting hole and the second bushing mounting hole on the other side are preferably positioned coaxially.
  • a fixing hole is formed in the first connecting portion, and a fixing burring flange that is passed through the fixing hole is formed in the second connecting portion, and the fixing burring flange penetrates the fixing hole in the arranging step.
  • the second connecting portion is brought into contact with the first connecting portion, and in the connecting step, the tip of the fixing burring flange is pressurized and plastically deformed or caulked, and the fixing hole or the periphery of the fixing hole is engaged.
  • the first connecting portion and the second connecting portion can be fixed and connected together.
  • the fixing hole and the fixing burring flange can be formed in a circular shape, but may have other shapes such as a square shape.
  • suspension arm and the manufacturing method of the suspension arm of the present invention it is possible to provide a suspension arm composed of a pair of arm plates capable of firmly fixing the mounting bush.
  • FIG. 1 is a perspective view of a suspension arm according to the present invention. It is a disassembled perspective view of a suspension arm. It is sectional drawing of a suspension arm. It is an enlarged view which shows a fixing hole and a burring flange part for fixing. It is an enlarged view which shows the bush part for attachment. It is a figure which shows the use condition of a suspension arm. It is a figure which shows the preparatory process of a 1st arm plate and a 2nd arm plate. It is a figure which shows the arrangement
  • the suspension arm 1 is configured by connecting a first arm plate 3 and a second arm plate 5.
  • the first arm plate 3 is made of steel and is formed in a thin and thin plate shape.
  • the first connecting portion 7 in the middle portion in the longitudinal direction and the first connecting portions 7 on both sides in the longitudinal direction of the first connecting portion 7 are formed.
  • the first offset portion 9 and the first bush mounting portion 11 on the outer side in the longitudinal direction of each first offset portion 9, and the rising portion 13 is integrally formed on the outer peripheral edge over the entire circumference.
  • the first connection portion 7 is formed in a flat plate shape and has fixing holes 15 on both sides in the length direction.
  • Each first offset portion 9 is inclined outward by 7 to 10 degrees from the outer end in the length direction of the first connecting portion 7 and extends outward in the length direction, and the first bush attachment portion 11 is The first offset portion 9 extends outward in the longitudinal direction in a stepped state in parallel with the first connecting portion 7 from the outer end in the length direction.
  • Each first bush attachment portion 11 is formed with a first bush attachment hole 17, and the first bush attachment hole 17 has a burring flange (first burring flange) 19 rising outward. Yes.
  • the outer edge (upper edge) 21 of the rising part 13 is located at the same or substantially the same height over the entire circumference except for both end edges in the length direction. Further, the burring flange 19 may be formed so as to protrude inward.
  • the second arm plate 5 is also made of steel and is formed in a thin and thin plate shape.
  • the second connecting portion 23 in the middle portion in the longitudinal direction and the second connecting portions 23 on both sides in the longitudinal direction of the second connecting portion 23.
  • the first offset portion 25 and the second bushing mounting portion 27 on the outer side in the longitudinal direction of each of the second offset portions 25, and the rising portion 29 is integrally provided on the outer peripheral edge over the entire circumference.
  • the second connection portion 23 is formed in a flat plate shape, and has burring flanges 31 protruding on the opposite side to the rising portion 29 on both sides in the length direction corresponding to the fixing hole 15.
  • Each second offset portion 25 extends outward in the length direction by inclining 7 degrees to 10 degrees outward from the outer end in the length direction of the second connection portion 23, and the second bush mounting portion 27 is The second offset portion 25 extends outward in the longitudinal direction in a stepped state parallel to the second connection portion 23 from the outer end in the length direction.
  • Each second bush mounting portion 27 is formed with a second bush mounting hole 33, and the second bush mounting hole 33 has a burring flange (second burring flange) 35 that rises outward. Yes.
  • the outer end edge (lower end edge) 37 of the rising portion 29 is located at the same or substantially the same height over the entire circumference except for both end edges in the length direction. Further, the burring flange 35 can be formed so as to protrude inward.
  • the second arm plate 5 has the same shape as the first arm plate 3 except for the difference between the fixing hole 15 and the burring flange 31.
  • the fixing hole 15 and the burring flange 31 are circular here, it can also be formed in square shape, for example.
  • the first connection portion 7 and the second connection portion 23 are back to back (the surface on the opposite side of the rising portion 13 of the first connection portion 7 ( (The back surface) 39 and the surface (the back surface) 41 opposite to the rising portion 29 of the second connecting portion 23), the second connecting portion 23 in the fixing hole 15 of the first connecting portion 7.
  • the burring flange 31 is connected by caulking the tip of the burring flange 31 with the burring flange 31 inserted.
  • the crimped tip end portion of the burring flange 31 is engaged with the surface side peripheral edge of the fixing hole 15 of the first connecting portion 7 or the surface around the fixing hole 15 of the first connecting portion 7 to prevent the burring flange 31 from coming off.
  • the back surface 39 of the first connection portion 7 and the back surface 41 of the second connection portion 23 are not It is in a contact state (see FIG. 4). Therefore, it is possible to prevent the back surface 39 of the first connection portion 7 and the back surface 41 of the second connection portion 23 from being rubbed and peeling off the paint in a wide range.
  • the first bush mounting hole 17 on one side and the second bush mounting hole 33 on one side, and the first bush mounting hole 17 on the other side and the second bush mounting hole 33 on the other side are respectively brackets.
  • a mounting bush 43 is press-fitted and fixed.
  • the mounting bush 43 includes a metal outer annular body 45 and a metal mounting pipe 49 attached to the outer annular body 45 via a rubber ring 47 so as to penetrate the outer annular body 45.
  • the outer annular body 45 has one end edge in the axial direction and the other end edge in the axial direction at the outer end edge (axial outer end edge) of the first burring flange 19 of the first bush mounting hole 17 and the second bush.
  • the mounting hole 33 is press-fitted into the first bush mounting hole 17 and the second bush mounting hole 33 so as to coincide with the outer end edge (axial outer end edge) of the second burring flange 35 of the mounting hole 33. That is, the outer annular body 45 of the mounting bush 43 has an outer edge of the first burring flange 19 of the first bush mounting hole 17 and an outer edge of the second burring flange 35 of the second bush mounting hole 33. And both ends in the length direction (axial direction) are press-fitted and supported by the first bush mounting hole 17 and the second bush mounting hole 33 (see FIG. 5, FIG. 5). Represents 43 mounting bushes on one side, but the 43 mounting bushes on the other side have the same structure). Both ends of the attachment pipe 49 in the length direction (axial direction) protrude outward from both axial ends of the outer annular body 45.
  • the suspension arm 1 having such a structure is inserted into the mounting pipe 49 of the mounting bush 43 on one side by inserting the support bolts 53 of the vehicle body side bracket 51 and tightened with the nuts 54.
  • the pipe 49 is rotatably attached to the vehicle body side bracket 51, and the support bolt 57 of the wheel side bracket 55 is inserted into the attachment pipe 49 of the attachment bush 43 on the other side and tightened with the nut 58. It is attached to the wheel side bracket 55 so as to be rotatable.
  • the first arm plate 3 is formed from one thin steel plate 59 by press molding
  • the second arm plate 5 is formed from one thin steel plate 61 by press molding. Necessary coating is applied to the molded first arm plate 3 and second arm plate 5 (preparation step).
  • the first connection portion and the second connection portion are back to back so that the burring flange 31 of the second connection portion is inserted into the fixing hole 15 of the first connection portion.
  • contact place step
  • separately prepared mounting bushes 43 are placed on the first bush mounting holes 17 on one side and the other side, and the mounting bushes 43 on one side and the other side are placed on the first arm.
  • a press-fitting member (pressurizing member, pressurizing positioning member) 63 is positioned so that it can be pushed down with respect to the plate 3 and the second arm plate 5.
  • the press-fitting member 63 is a thick plate body, has bush pressing portions 65 on both sides in the length direction, and has a pair of frustoconical punches 67 corresponding to the burring flange 31 in the middle portion.
  • Each of the portions 65 is formed with an insertion hole 69 having a diameter smaller than that of the outer annular body 45 of the mounting bush 43 and larger than that of the mounting pipe 49, and each bush pressing portion 65 is inserted into the insertion pipe 69. It is comprised so that the upper end edge of the outer side annular body 45 of the bush 43 for attachment may be pressed in the state which accommodated this protrusion end part. As shown in FIG. 10, the press-fitting member 63 descends (in the direction of arrow A, also described in FIG.
  • the second bushing mounting hole 33 is positioned coaxially (in the same direction as the arrow A), and the other side mounting bushing 43 into the first bushing mounting hole 17 on the other side and the second bushing mounting hole 33 on the other side.
  • the first bush mounting hole 17 on the other side and the second bush mounting hole 33 on the other side are also positioned coaxially (in the same direction as the arrow A).
  • the press-fitting member 63 contacts the outer edge 21 of the rising portion 13, and the lower end of the mounting bush 43 (outer annular body 45) reaches the lower end of the second bush mounting hole 33.
  • the press-fitting of the mounting bush 43 is completed, and the caulking of the tip of the burring flange 31 by the punch 67 is also completed.
  • the press-fitting member 63 rises, but the positioning step and the connecting step started by the lowering of the press-fitting member 63 are finished by this rise of the press-fitting member 63.
  • the suspension arm of the present invention can be used, for example, in a wheel suspension device for a private car.

Abstract

La présente invention vise à réaliser un bras de suspension de véhicule, qui est constitué par l'assemblage d'une paire de plaques de bras et qui a une fonction de support de coussinet stable. L'invention concerne une première plaque de bras (3), qui est construite de manière à avoir une première partie de liaison (7) qui est formée dans une section intermédiaire dans sa direction longitudinale, des premières parties déportées (9) qui sont formées aux deux extrémités dans la direction longitudinale de la première partie de liaison (7), et des premières parties de montage de coussinet (11) qui sont formées sur le côté extérieur des premières parties déportées (9) dans la direction longitudinale ; et une seconde plaque de bras (5) qui est construite de manière à avoir une seconde partie de liaison (23) qui est formée dans une section intermédiaire dans sa direction longitudinale, des secondes parties déportées (25) qui sont formées aux deux extrémités dans la direction longitudinale de la seconde partie de liaison (23), et des secondes parties de montage de coussinet (27) qui sont formées sur le côté extérieur des secondes parties déportées (23) dans la direction longitudinale. La première partie de liaison (7) et la seconde partie de liaison (23) sont reliées ensemble, les premières parties de montage de coussinet (11) et les secondes parties de montage de coussinet (27) étant séparées l'une de l'autre de façon à constituer un bras de suspension (1).
PCT/JP2013/058383 2013-03-22 2013-03-22 Bras de suspension et procédé de fabrication pour bras de suspension WO2014147834A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2013/058383 WO2014147834A1 (fr) 2013-03-22 2013-03-22 Bras de suspension et procédé de fabrication pour bras de suspension
JP2015506520A JP6317330B2 (ja) 2013-03-22 2013-03-22 サスペンションアーム及びサスペンションアームの製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/058383 WO2014147834A1 (fr) 2013-03-22 2013-03-22 Bras de suspension et procédé de fabrication pour bras de suspension

Publications (1)

Publication Number Publication Date
WO2014147834A1 true WO2014147834A1 (fr) 2014-09-25

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JP (1) JP6317330B2 (fr)
WO (1) WO2014147834A1 (fr)

Cited By (8)

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CN106312450A (zh) * 2015-07-02 2017-01-11 Edai技术单位经济利益分组 用于获得汽车用悬臂的方法及悬臂
JP2017007620A (ja) * 2015-06-26 2017-01-12 株式会社ワイテック サスペンションアーム及びその製造方法
FR3070314A1 (fr) * 2017-08-23 2019-03-01 Psa Automobiles Sa Dispositif bi-coquille de vehicule et son procede d’assemblage
KR20190068127A (ko) * 2017-12-08 2019-06-18 현대자동차주식회사 멀티 링크식 후륜 현가장치용 어퍼 암
CN110843442A (zh) * 2019-10-29 2020-02-28 万向钱潮股份有限公司 一种多连杆悬架系统的上控制臂
KR20200069141A (ko) * 2018-12-06 2020-06-16 현대자동차주식회사 양단 버링 암 어셈블리
CN114481572A (zh) * 2021-09-28 2022-05-13 宁波公牛生活电器有限公司 晾杆、晾衣机及晾杆制造方法
KR20220073324A (ko) * 2020-11-26 2022-06-03 주식회사 포스코 로워암 및 이의 제조방법

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017007620A (ja) * 2015-06-26 2017-01-12 株式会社ワイテック サスペンションアーム及びその製造方法
US9956838B2 (en) * 2015-07-02 2018-05-01 Engineering Developments For Automotive Industry, S.L. Method for obtaining a suspension arm for automotive vehicles and suspension arm
CN106312450B (zh) * 2015-07-02 2019-05-07 汽车工业工程发展有限公司 用于获得汽车用悬臂的方法及悬臂
CN106312450A (zh) * 2015-07-02 2017-01-11 Edai技术单位经济利益分组 用于获得汽车用悬臂的方法及悬臂
FR3070314A1 (fr) * 2017-08-23 2019-03-01 Psa Automobiles Sa Dispositif bi-coquille de vehicule et son procede d’assemblage
KR102440604B1 (ko) 2017-12-08 2022-09-05 현대자동차 주식회사 멀티 링크식 후륜 현가장치용 어퍼 암
KR20190068127A (ko) * 2017-12-08 2019-06-18 현대자동차주식회사 멀티 링크식 후륜 현가장치용 어퍼 암
KR20200069141A (ko) * 2018-12-06 2020-06-16 현대자동차주식회사 양단 버링 암 어셈블리
KR102563489B1 (ko) 2018-12-06 2023-08-04 현대자동차주식회사 양단 버링 암 어셈블리
CN110843442A (zh) * 2019-10-29 2020-02-28 万向钱潮股份有限公司 一种多连杆悬架系统的上控制臂
KR20220073324A (ko) * 2020-11-26 2022-06-03 주식회사 포스코 로워암 및 이의 제조방법
KR102484990B1 (ko) * 2020-11-26 2023-01-04 주식회사 포스코 로워암 및 이의 제조방법
CN114481572A (zh) * 2021-09-28 2022-05-13 宁波公牛生活电器有限公司 晾杆、晾衣机及晾杆制造方法

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