WO2014167689A1 - Torsion beam-type suspension - Google Patents

Torsion beam-type suspension Download PDF

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Publication number
WO2014167689A1
WO2014167689A1 PCT/JP2013/060943 JP2013060943W WO2014167689A1 WO 2014167689 A1 WO2014167689 A1 WO 2014167689A1 JP 2013060943 W JP2013060943 W JP 2013060943W WO 2014167689 A1 WO2014167689 A1 WO 2014167689A1
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WO
WIPO (PCT)
Prior art keywords
fastening member
torsion beam
trailing arm
hole
fastening
Prior art date
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PCT/JP2013/060943
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French (fr)
Japanese (ja)
Inventor
松本　正春
Original Assignee
株式会社ヨロズ
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Publication date
Application filed by 株式会社ヨロズ filed Critical 株式会社ヨロズ
Priority to PCT/JP2013/060943 priority Critical patent/WO2014167689A1/en
Publication of WO2014167689A1 publication Critical patent/WO2014167689A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/051—Trailing arm twist beam axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/20—Semi-rigid axle suspensions
    • 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
    • B60G2206/70—Materials used in suspensions
    • B60G2206/71—Light weight materials
    • B60G2206/7102—Aluminium alloys

Definitions

  • the present invention relates to a torsion beam suspension.
  • the torsion beam suspension is mainly used as the rear suspension for front-wheel drive vehicles.
  • the torsion beam type suspension is a suspension in which a pair of left and right trailing arms arranged to face each other are connected by a torsion beam that allows torsion. Since this torsion beam suspension has a simple structure and is low in cost, it is widely used in front-wheel drive vehicles such as compact cars.
  • Patent Document 1 discloses a torsion beam suspension in which a torsion beam obtained by pressing a hollow steel pipe and a trailing arm made of a steel plate are welded and joined.
  • a method of forming a trailing arm or a torsion beam as a component from a light alloy is conceivable.
  • the torsion beam is required to have strength against torsional rigidity, It is difficult to form with an alloy. Therefore, a method of forming the trailing arm from a light alloy is conceivable, but at this time, a highly reliable connection structure for connecting the torsion beam and the trailing arm formed from the light alloy is required.
  • the present invention has been made to solve the above-described problems, and provides a torsion beam suspension in which a torsion beam and a trailing arm formed of a light alloy are coupled using a highly reliable coupling structure. For the purpose.
  • the connecting member includes a fixing portion fixed to an end portion of the torsion beam, and a grip portion that is bent and continuous at both ends of the fixing portion and sandwiches a part of the trailing arm. And a fastening member for fastening the grip portion and the trailing arm.
  • the grip portion sandwiches a part of the trailing arm from the vertical direction when the vehicle body is mounted, the fastening member fastens the grip portion and the trailing arm from the vertical direction, and the fastening member is
  • the first fastening member includes at least a first fastening member and a second fastening member, and the second fastening member is provided such that a fastening position thereof is adjustable with respect to the first fastening member, and the first fastening member of the second fastening member is provided.
  • the connecting member that connects the trailing arm, which is a light alloy, and the torsion beam has a grip portion that sandwiches a part of the trailing arm. For this reason, it is possible to provide a torsion beam suspension in which a torsion beam and a trailing arm formed of a light alloy are connected using a highly reliable connection structure.
  • the angle of the trailing arm around the axis of the first fastening member can be adjusted based on the fastening position of the second fastening member with respect to the first fastening member. For this reason, by adjusting the fastening position of the second fastening member with respect to the first fastening member, the toe angle when mounted on the vehicle can be adjusted.
  • FIG. 2 is a diagram for explaining a trailing arm according to the present embodiment, and is an enlarged perspective view seen from the direction of arrow A in FIG. 1. It is a figure which shows the connection member which concerns on this embodiment, Comprising: It is the exploded view seen from the arrow B direction of FIG. It is a figure which shows typically a to-be-attached part side through-hole and a grip part side through-hole.
  • FIG. 5A is a diagram illustrating a state in which the shaft center of the shaft portion is decentered to the right with respect to the shaft center of the shaft misalignment portion, and FIG. 5B is a state in which the shaft center of the shaft portion is moved.
  • FIG. 5A is a diagram illustrating a state in which the shaft center of the shaft portion is decentered to the right with respect to the shaft center of the shaft misalignment portion
  • FIG. 5B is a state in which the shaft center of the shaft portion is moved.
  • FIG. 1 is a perspective view showing a torsion beam suspension 1 according to an embodiment of the present invention.
  • FIG. 2 is a diagram for explaining the trailing arm 10 according to the present embodiment, and is an enlarged perspective view seen from the direction of arrow A in FIG. 1.
  • FIG. 3 is a diagram showing the connecting member 30 according to the present embodiment, and is an exploded view seen from the direction of arrow B in FIG.
  • FIG. 4 is a diagram schematically showing the attached portion side through holes 11A to 11D and the grip portion side through holes 32A to 32D, as seen from the upper side in the Z direction of FIG. FIG. In FIG. 4, the manner in which the attached portion 11 is arranged below the grip portion 32 is schematically shown by arranging respective top views in the vertical direction.
  • the torsion beam suspension 1 is formed between aluminum and a pair of left and right trailing arms 10 and a pair of left and right trailing arms 10. And a connecting member 30 for connecting the trailing arm 10 and the torsion beam 20 to each other.
  • the connecting member 30 includes a fixing portion 31 fixed to the end portion 21 of the torsion beam 20, a main body portion 33 having a grip portion 32 that is bent and continuous at both ends of the fixing portion 31 and sandwiches the attached portion 11 of the trailing arm 10.
  • a fastening member 34 for fastening the grip portion 32 and the trailing arm 10.
  • the torsion beam suspension 1 includes the trailing arm 10, the torsion beam 20, and the connecting member 30.
  • the trailing arms 10 are spaced from each other in the Y direction (left-right direction) and are opposed to each other. Since the pair of left and right trailing arms 10 are provided symmetrically to each other, here, the description will be given focusing on the left trailing arm 10 in FIG.
  • the trailing arm 10 includes a mounted portion 11, a vehicle body mounting portion 12, a spring seat 13, a shock mounting portion 14, and a wheel mounting portion 15.
  • the trailing arm 10 is made of aluminum. However, it is not limited to this, and it can be formed of a light alloy such as magnesium or titanium.
  • the attached portion 11 is sandwiched by the grip portion 32 of the connecting member 30 from the Z direction (up and down direction). As shown in FIG. 4, the attached portion 11 is provided with attached portion side through holes 11A to 11D in the Z direction.
  • the attached portion side through-holes 11A to 11D include a first through-hole 11A provided at the lower right, a second through-hole 11B provided at the upper left, a third through-hole 11C provided at the lower left, and an upper right 4th through-hole 11D provided in this.
  • the first fastening member 341 to the fourth fastening member 344 are inserted into the attached portion side through holes 11A to 11D in close contact with each other.
  • the vehicle body mounting portion 12 connects the trailing arm 10 to the vehicle body so as to be rotatable in the Z direction.
  • the vehicle body mounting portion 12 is provided in a cylindrical shape on the front end side (downward in the X direction left) of the mounted portion 11.
  • the spring seat 13 is a seat that becomes a seating surface of a spring that elastically supports the vehicle body. Since the spring seat 13 affects the formation of the internal space of the vehicle body depending on the installation location, it is preferable to install the spring seat 13 in a location where the influence is minimized. Specifically, it is preferably in the vicinity where the trailing arm 10 and the torsion beam 20 cross each other and at the rear end side (upwardly in the X direction) of the attached portion 11, that is, the position shown in the drawing.
  • the shock mounting portion 14 is attached to one end of a shock absorber (not shown).
  • the shock mounting portion 14 is provided in a clevis shape on the rear end side of the spring seat 13.
  • the shock absorber is attached to the trailing arm 10 by inserting one end of the shock absorber into the clevis-shaped shock attachment portion 14 and bolting.
  • Wheels (not shown) are attached to the wheel attachment portion 15 via spindles (not shown).
  • the wheel attachment portion 15 is provided on the rear end side of the attachment portion 11.
  • the torsion beam 20 is a beam having a substantially V-shaped cross section with a front end opened and a right angle cross section.
  • the torsion beam 20 is disposed between the left and right trailing arms 10, and the end 21 of the torsion beam 20 is fixed to the fixing portion 31.
  • the fixing method is, for example, welding.
  • the connecting member 30 connects the trailing arm 10 and the torsion beam 20.
  • the connecting members 30 are spaced apart from each other in the Y direction and arranged to face each other. Since the pair of left and right connecting members 30 are provided symmetrically to each other, here, the description will be given focusing on the left connecting member 30 in FIG.
  • the connecting member 30 has a main body portion 33 and a fastening member 34.
  • the main body portion 33 includes the fixing portion 31 fixed to the end portion 21 of the torsion beam 20, the grip portion 32 that is bent and continuous at both ends of the fixing portion 31 and sandwiches the attached portion 11 of the trailing arm 10.
  • the main body 33 has a substantially U shape.
  • the main body 33 is made of iron.
  • the grip portion 32 is provided with grip portion side through holes 32A to 32D in the Z direction.
  • the grip part side through holes 32A to 32D are a fifth through hole 32A provided at the lower right, a sixth through hole 32B provided at the upper left, a seventh through hole 32C provided at the lower left, and an upper right.
  • an eighth through hole 32D provided. That is, the first through hole 11A and the fifth through hole 32A, the second through hole 11B and the sixth through hole 32B, the third through hole 11C and the seventh through hole 32C, the fourth through hole 11D, and the eighth through hole 32D. Are provided at corresponding positions.
  • a first fastening member 341 described later is inserted into the fifth through hole 32A in close contact with the fifth through hole 32A.
  • the sixth through hole 32B has a long hole shape that is long in a direction perpendicular to a line connecting the centers of the first through hole 11A and the second through hole 11B.
  • a third fastening member 343 and a fourth fastening member 344 described later are movably inserted into the seventh through hole 32C and the eighth through hole 32D, respectively. That is, the seventh through hole 32C is provided with a relatively large diameter with respect to the third fastening member 433, and the eighth through hole 32D is provided with a relatively large diameter with respect to the fourth fastening member 434.
  • a restricting portion 35 that restricts movement of a shaft misalignment portion 342 ⁇ / b> Z described later is provided on the upper surface of the grip portion 32 where the sixth through hole 32 ⁇ / b> B is provided.
  • the restricting portion 35 has a long hole 351 having a shape substantially coinciding with the sixth through hole 32B at a position corresponding to the sixth through hole 32B.
  • the fastening member 34 fastens the grip part 32 and the trailing arm 10 from the Z direction through the attached part side through holes 11A to 11D and the grip part side through holes 32A to 32D.
  • the fastening member 34 includes a first fastening member 341 provided at the lower right, a second fastening member 342 provided at the upper left, a third fastening member 343 provided at the lower left, and a fourth fastening provided at the upper right. And a member 344.
  • the first fastening member 341 can fasten the grip portion 32 and the trailing arm 10 via the first through hole 11A and the fifth through hole 32A. As shown in FIG. 4, the first fastening member 341 is inserted in close contact with the first through hole 11A and the fifth through hole 32A.
  • the second fastening member 342 can fasten the grip portion 32 and the trailing arm 10 via the second through hole 11B and the sixth through hole 32B. As shown in FIG. 4, the second fastening member 342 is inserted in close contact with the second through hole 11B, and the center of the first through hole 11A and the second through hole 11B with respect to the sixth through hole 32B. It is inserted so as to be movable in a direction orthogonal to the line connecting the two. As shown in FIG.
  • the second fastening member 342 includes a second bolt 342 ⁇ / b> B provided with a shaft portion 342 ⁇ / b> J and a shaft offset portion 342 ⁇ / b> Z having a shaft center at a position eccentric with respect to the shaft center of the shaft portion 342 ⁇ / b> J, 2 nuts 342N and an eccentric portion 342H having an axis at a position eccentric with respect to the axis of the second nut 342N.
  • the shaft offset part 342Z and the eccentric part 342H are eccentric washers.
  • the shaft portion 342J and the shaft offset portion 342Z are configured to be fixed.
  • the fixing method is, for example, welding, but is not limited thereto.
  • the third fastening member 343 can fasten the grip portion 32 and the trailing arm 10 via the third through hole 11C and the seventh through hole 32C. As shown in FIG. 4, the third fastening member 343 is inserted in close contact with the third through hole 11C and is movably inserted into the seventh through hole 32C.
  • the fourth fastening member 344 can fasten the grip portion 32 and the trailing arm 10 via the fourth through hole 11D and the eighth through hole 32D. As shown in FIG. 4, the fourth fastening member 344 is inserted in close contact with the fourth through hole 11D, and is movably inserted into the eighth through hole 32D.
  • the second fastening member 342 is provided such that the fastening position thereof is adjustable with respect to the first fastening member 341, and the fastening position of the second fastening member 342 with respect to the first fastening member 341 is provided. Based on the above, the angle of the trailing arm 10 around the axis of the first fastening member 341 can be adjusted.
  • the first fastening member 341, the second fastening member 342, the third fastening member 343, and the fourth fastening member 344 are temporarily tightened in a state where they are aligned.
  • the shaft center of the shaft portion 342J of the second fastening member 342 is eccentric to the right with respect to the shaft center of the shaft misalignment portion 342Z (see FIG. 5A).
  • the trailing arm 10 moves as the axis of the shaft portion 342J moves. That is, when the shaft portion 342J is rotated 90 degrees counterclockwise, as shown by an arrow A in FIG. 4, the wheel is moved as the second fastening member 342 and the trailing arm 10 move upward in FIG. Since the attachment portion 15 moves inward and the vehicle body attachment portion 12 moves outward, the trailing arm 10 is in a toe-out state. On the contrary, when the shaft portion 342J is rotated 90 degrees clockwise, as shown by an arrow B in FIG. 4, the wheel is moved as the second fastening member 342 and the trailing arm 10 move downward in FIG. Since the mounting portion 15 moves outward and the vehicle body mounting portion 12 moves inward, the trailing arm 10 is in a toe-in state.
  • the torsion beam suspension 1 includes a pair of left and right trailing arms 10 made of aluminum and arranged to face each other, and a torsion beam disposed between the pair of left and right trailing arms 10. 20, and a connecting member 30 that connects the trailing arm 10 and the torsion beam 20, and the connecting member 30 is bent at both ends of the fixing portion 31 and a fixing portion 31 that is fixed to the end portion 21 of the torsion beam 20.
  • a main body portion 33 including a grip portion 32 that continuously holds the attached portion 11 of the trailing arm 10, and a fastening member 34 that fastens the grip 32 portion and the trailing arm 10.
  • the trailing arm 10 made of aluminum and the connecting member 30 that connects the torsion beam 20 have a grip portion 32 that sandwiches the attached portion 11 of the trailing arm 10. Therefore, it is possible to provide the torsion beam suspension 1 in which the torsion beam 20 and the trailing arm 10 formed of aluminum are connected using a highly reliable connection structure.
  • the grip portion 32 sandwiches the attached portion 11 of the trailing arm 10 from the Z direction, the fastening member 34 fastens the grip portion 32 and the trailing arm 10 from the Z direction, and the fastening member 34 is the first fastening.
  • the second fastening member 342 has a member 341 and a second fastening member 342, the fastening position of the second fastening member 342 is adjustable with respect to the first fastening member 341, and the fastening position of the second fastening member 342 with respect to the first fastening member 341 Based on the above, the angle of the trailing arm 10 around the axis of the first fastening member 341 can be adjusted. For this reason, by adjusting the fastening position of the second fastening member 342 relative to the first fastening member 341, the toe angle when mounted on the vehicle can be adjusted.
  • the trailing arm 10 is made of aluminum. For this reason, the manufacturing cost can be reduced.
  • fastening member 34 is fastened from the vertical direction of the grip portion 32, it may be fastened from the left-right direction.
  • the grip portion 32 sandwiches the attached portion 11 of the trailing arm 10 from the up-and-down direction, but may be configured to sandwich from the front-and-rear direction. At this time, by fixing the first fastening member 341 and the second fastening member 342 described above from the X direction, the camber angle when mounted on the vehicle can be adjusted.
  • torsion beam 20 and the main body 33 are configured separately, they may be configured integrally.
  • the present invention is not limited to this.
  • restricting portion 35 is provided separately on the grip portion 32, it may be provided integrally.
  • 1 Torsion beam suspension 10 trailing arm, 11 Mounted part (part of the trailing arm), 20 Torsion beam, 21 end, 30 connecting member, 31 fixing part, 32 grip part, 33 body, 34 fastening members, 341 first fastening member, 342 Second fastening member.

Abstract

[Problem] To provide a torsion beam-type suspension in which a torsion beam and trailing arms formed of a light alloy are coupled using a highly reliable coupling structure. [Solution] Provided is a torsion beam-type suspension (1) having a pair of left and right trailing arms (10) that are formed of a light alloy and arranged opposite to one another, a torsion beam (20) disposed between the pair of left and right trailing arms, and coupling members (30) for coupling the trailing arms and the torsion beam. The coupling members each have the following: a main body section (33) provided with a fixed section (31) that is fixed with an end part (21) of the torsion beam, and a grip section (32) that is continuous in a bent manner at both ends of the fixed section and sandwiches a part of the trailing arm; and a fastening member (34) for fastening the grip section and the trailing arm together.

Description

トーションビーム式サスペンションTorsion beam suspension
　本発明は、トーションビーム式サスペンションに関する。 The present invention relates to a torsion beam suspension.
　主に前輪駆動車のリヤサスペンションとして、トーションビーム式サスペンションが用いられている。トーションビーム式サスペンションとは、相互に対向配置された左右一対のトレーリングアームを、ねじれを許容するトーションビームで連結したサスペンションである。このトーションビーム式サスペンションは、構造が簡素でありかつ低コストであるため、コンパクトカーなどの前輪駆動車に多く採用されている。 The torsion beam suspension is mainly used as the rear suspension for front-wheel drive vehicles. The torsion beam type suspension is a suspension in which a pair of left and right trailing arms arranged to face each other are connected by a torsion beam that allows torsion. Since this torsion beam suspension has a simple structure and is low in cost, it is widely used in front-wheel drive vehicles such as compact cars.
　これに関連する技術として、例えば特許文献１には、中空の鋼管をプレス加工したトーションビームと鋼板製のトレーリングアームとを溶接接合したトーションビーム式サスペンションが記載されている。 For example, Patent Document 1 discloses a torsion beam suspension in which a torsion beam obtained by pressing a hollow steel pipe and a trailing arm made of a steel plate are welded and joined.
特開２００１－３２１８４６号公報Japanese Patent Laid-Open No. 2001-321846
　このようなトーションビーム式サスペンションをさらに軽量化しようとした場合には、構成部品であるトレーリングアームまたはトーションビームを軽合金によって形成する方法が考えられるが、トーションビームはねじり剛性に対する強度が求められるため、軽合金によって形成するのは困難である。よって、トレーリングアームを軽合金によって形成する方法が考えられるが、このとき、トーションビームと、軽合金によって形成したトレーリングアームと、を連結する信頼性の高い連結構造が必要となる。 In order to further reduce the weight of such a torsion beam suspension, a method of forming a trailing arm or a torsion beam as a component from a light alloy is conceivable. However, since the torsion beam is required to have strength against torsional rigidity, It is difficult to form with an alloy. Therefore, a method of forming the trailing arm from a light alloy is conceivable, but at this time, a highly reliable connection structure for connecting the torsion beam and the trailing arm formed from the light alloy is required.
　本発明は、上記課題を解決するためになされたものであり、信頼性の高い連結構造を用いて、トーションビームと、軽合金によって形成したトレーリングアームと、が連結されたトーションビーム式サスペンションを提供することを目的とする。 The present invention has been made to solve the above-described problems, and provides a torsion beam suspension in which a torsion beam and a trailing arm formed of a light alloy are coupled using a highly reliable coupling structure. For the purpose.
　上記目的は、下記（１）～（３）に記載の発明により達成される。 The above object is achieved by the inventions described in (1) to (3) below.
　（１）軽合金によって形成され相互に対向配置された左右一対のトレーリングアームと、左右一対の前記トレーリングアーム間に配置されるトーションビームと、前記トレーリングアーム及び前記トーションビームを連結する連結部材と、を有し、前記連結部材は、前記トーションビームの端部と固定される固定部と、前記固定部の両端に折れ曲がって連続し前記トレーリングアームの一部を挟み込むグリップ部と、を備える本体部、及び、前記グリップ部及び前記トレーリングアームを締結する締結部材と、を有するトーションビーム式サスペンション。 (1) A pair of left and right trailing arms formed of a light alloy and arranged to face each other, a torsion beam disposed between the pair of left and right trailing arms, and a connecting member that connects the trailing arm and the torsion beam. The connecting member includes a fixing portion fixed to an end portion of the torsion beam, and a grip portion that is bent and continuous at both ends of the fixing portion and sandwiches a part of the trailing arm. And a fastening member for fastening the grip portion and the trailing arm.
　（２）前記グリップ部は、前記トレーリングアームの一部を車体搭載時の上下方向から挟み込み、前記締結部材は、前記上下方向から前記グリップ部及び前記トレーリングアームを締結し、前記締結部材は、少なくとも第１締結部材と第２締結部材とを有し、前記第２締結部材は前記第１締結部材に対して締結位置が調整自在に設けられ、前記第２締結部材の前記第１締結部材に対する締結位置に基づいて、前記第１締結部材の軸周りの前記トレーリングアームの角度を調整可能である請求項１に記載のトーションビーム式サスペンション。 (2) The grip portion sandwiches a part of the trailing arm from the vertical direction when the vehicle body is mounted, the fastening member fastens the grip portion and the trailing arm from the vertical direction, and the fastening member is The first fastening member includes at least a first fastening member and a second fastening member, and the second fastening member is provided such that a fastening position thereof is adjustable with respect to the first fastening member, and the first fastening member of the second fastening member is provided. 2. The torsion beam suspension according to claim 1, wherein an angle of the trailing arm around an axis of the first fastening member can be adjusted based on a fastening position with respect to the first fastening member.
　（３）前記トレーリングアームはアルミによって形成される上記（１）または（２）に記載のトーションビーム式サスペンション。 (3) The torsion beam suspension according to (1) or (2), wherein the trailing arm is made of aluminum.
　上記（１）に記載の発明によれば、軽合金であるトレーリングアーム及びトーションビームを連結する連結部材は、トレーリングアームの一部を挟み込むグリップ部を有する。このため、信頼性の高い連結構造を用いて、トーションビームと、軽合金によって形成したトレーリングアームと、が連結されたトーションビーム式サスペンションを提供することができる。 According to the invention described in (1) above, the connecting member that connects the trailing arm, which is a light alloy, and the torsion beam has a grip portion that sandwiches a part of the trailing arm. For this reason, it is possible to provide a torsion beam suspension in which a torsion beam and a trailing arm formed of a light alloy are connected using a highly reliable connection structure.
　上記（２）に記載の発明によれば、第２締結部材の第１締結部材に対する締結位置に基づいて、第１締結部材の軸周りのトレーリングアームの角度を調整可能である。このため、第２締結部材の第１締結部材に対する締結位置を調整することによって、車両に搭載した際におけるトー角の調整が可能である。 According to the invention described in (2) above, the angle of the trailing arm around the axis of the first fastening member can be adjusted based on the fastening position of the second fastening member with respect to the first fastening member. For this reason, by adjusting the fastening position of the second fastening member with respect to the first fastening member, the toe angle when mounted on the vehicle can be adjusted.
　上記（３）に記載の発明によれば、トレーリングアームはアルミによって形成されるため、製造コストの低減を図ることができる。 According to the invention described in (3) above, since the trailing arm is made of aluminum, the manufacturing cost can be reduced.
本発明の実施形態に係るトーションビーム式サスペンションを示す斜視図である。It is a perspective view which shows the torsion beam type suspension which concerns on embodiment of this invention. 本実施形態に係るトレーリングアームの説明に供する図であって、図１の矢視Ａ方向から見た拡大斜視図である。FIG. 2 is a diagram for explaining a trailing arm according to the present embodiment, and is an enlarged perspective view seen from the direction of arrow A in FIG. 1. 本実施形態に係る連結部材を示す図であって、図２の矢視Ｂ方向から見た分解図である。It is a figure which shows the connection member which concerns on this embodiment, Comprising: It is the exploded view seen from the arrow B direction of FIG. 被取付部側貫通孔及びグリップ部側貫通孔を模式的に示す図である。It is a figure which shows typically a to-be-attached part side through-hole and a grip part side through-hole. 図５（Ａ）は、軸部の軸心が軸ずれ部の軸心に対して右向きに偏心する様子を示す図であって、図５（Ｂ）は、軸部の軸心が移動する様子を示す図である。FIG. 5A is a diagram illustrating a state in which the shaft center of the shaft portion is decentered to the right with respect to the shaft center of the shaft misalignment portion, and FIG. 5B is a state in which the shaft center of the shaft portion is moved. FIG.
　以下、図面を参照して、本発明の実施形態を説明する。なお、図面の寸法比率は、説明の都合上、誇張されて実際の比率とは異なる場合がある。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the dimension ratio of drawing is exaggerated on account of description, and may differ from an actual ratio.
　図１は、本発明の実施形態に係るトーションビーム式サスペンション１を示す斜視図である。図２は、本実施形態に係るトレーリングアーム１０の説明に供する図であって、図１の矢視Ａ方向から見た拡大斜視図である。図３は、本実施形態に係る連結部材３０を示す図であって、図２の矢視Ｂ方向から見た分解図である。図４は、被取付部側貫通孔１１Ａ～１１Ｄ及びグリップ部側貫通孔３２Ａ～３２Ｄを模式的に示す図であって、図１のＺ方向上側から固定部３３が上側に来るように見た図である。図４では、グリップ部３２の下側に被取付部１１が配置される様子を、それぞれの上面図を上下に配列して模式的に示す。 FIG. 1 is a perspective view showing a torsion beam suspension 1 according to an embodiment of the present invention. FIG. 2 is a diagram for explaining the trailing arm 10 according to the present embodiment, and is an enlarged perspective view seen from the direction of arrow A in FIG. 1. FIG. 3 is a diagram showing the connecting member 30 according to the present embodiment, and is an exploded view seen from the direction of arrow B in FIG. FIG. 4 is a diagram schematically showing the attached portion side through holes 11A to 11D and the grip portion side through holes 32A to 32D, as seen from the upper side in the Z direction of FIG. FIG. In FIG. 4, the manner in which the attached portion 11 is arranged below the grip portion 32 is schematically shown by arranging respective top views in the vertical direction.
　本実施形態に係るトーションビーム式サスペンション１は、概説すると、図１～３に示すように、アルミによって形成され相互に対向配置された左右一対のトレーリングアーム１０と、左右一対のトレーリングアーム１０間に配置されるトーションビーム２０と、トレーリングアーム１０及びトーションビーム２０を連結する連結部材３０と、を有する。連結部材３０は、トーションビーム２０の端部２１と固定される固定部３１及び固定部３１の両端に折れ曲がって連続しトレーリングアーム１０の被取付部１１を挟み込むグリップ部３２を有する本体部３３と、グリップ部３２及びトレーリングアーム１０を締結する締結部材３４と、を有する。以下、本実施形態に係るトーションビーム式サスペンション１について詳述する。 In general, the torsion beam suspension 1 according to the present embodiment, as shown in FIGS. 1 to 3, is formed between aluminum and a pair of left and right trailing arms 10 and a pair of left and right trailing arms 10. And a connecting member 30 for connecting the trailing arm 10 and the torsion beam 20 to each other. The connecting member 30 includes a fixing portion 31 fixed to the end portion 21 of the torsion beam 20, a main body portion 33 having a grip portion 32 that is bent and continuous at both ends of the fixing portion 31 and sandwiches the attached portion 11 of the trailing arm 10. And a fastening member 34 for fastening the grip portion 32 and the trailing arm 10. Hereinafter, the torsion beam suspension 1 according to the present embodiment will be described in detail.
　トーションビーム式サスペンション１は、上述したように、トレーリングアーム１０と、トーションビーム２０と、連結部材３０と、を有する。 As described above, the torsion beam suspension 1 includes the trailing arm 10, the torsion beam 20, and the connecting member 30.
　トレーリングアーム１０は、Ｙ方向（左右方向）に離間して相互に対向配置される。左右一対のトレーリングアーム１０は互いに対称に設けられるため、ここでは図１において左側のトレーリングアーム１０に着目して説明する。トレーリングアーム１０は、被取付部１１と、車体取付部１２と、スプリングシート１３と、ショック取付部１４と、車輪取付部１５と、を有する。トレーリングアーム１０は、アルミによって形成される。しかしながら、これに限られず、マグネシウム、チタンなどの軽合金によって形成され得る。 The trailing arms 10 are spaced from each other in the Y direction (left-right direction) and are opposed to each other. Since the pair of left and right trailing arms 10 are provided symmetrically to each other, here, the description will be given focusing on the left trailing arm 10 in FIG. The trailing arm 10 includes a mounted portion 11, a vehicle body mounting portion 12, a spring seat 13, a shock mounting portion 14, and a wheel mounting portion 15. The trailing arm 10 is made of aluminum. However, it is not limited to this, and it can be formed of a light alloy such as magnesium or titanium.
　被取付部１１は、連結部材３０のグリップ部３２によってＺ方向（上下方向）から挟み込まれる。被取付部１１には、図４に示すように、Ｚ方向に被取付部側貫通孔１１Ａ～１１Ｄが設けられる。被取付部側貫通孔１１Ａ～１１Ｄは、図４において、右下に設けられる第１貫通孔１１Ａと、左上に設けられる第２貫通孔１１Ｂと、左下に設けられる第３貫通孔１１Ｃと、右上に設けられる第４貫通孔１１Ｄと、を有する。被取付部側貫通孔１１Ａ～１１Ｄには、図４に示すように、第１締結部材３４１～第４締結部材３４４が密着して挿入される。 The attached portion 11 is sandwiched by the grip portion 32 of the connecting member 30 from the Z direction (up and down direction). As shown in FIG. 4, the attached portion 11 is provided with attached portion side through holes 11A to 11D in the Z direction. In FIG. 4, the attached portion side through-holes 11A to 11D include a first through-hole 11A provided at the lower right, a second through-hole 11B provided at the upper left, a third through-hole 11C provided at the lower left, and an upper right 4th through-hole 11D provided in this. As shown in FIG. 4, the first fastening member 341 to the fourth fastening member 344 are inserted into the attached portion side through holes 11A to 11D in close contact with each other.
　車体取付部１２は、トレーリングアーム１０を車体に対しＺ方向に回動可能に連結する。車体取付部１２は、被取付部１１の前端側（Ｘ方向左下向き）に円筒状に設けられる。 The vehicle body mounting portion 12 connects the trailing arm 10 to the vehicle body so as to be rotatable in the Z direction. The vehicle body mounting portion 12 is provided in a cylindrical shape on the front end side (downward in the X direction left) of the mounted portion 11.
　スプリングシート１３は、車体を弾性的に支持するスプリングの座面となるシートである。このスプリングシート１３は、設置する場所によっては車体の内部空間の形成に影響を与えるので、最も影響が少なくなる場所に設置することが好ましい。具体的にはトレーリングアーム１０とトーションビーム２０とが交差する近傍であって、被取付部１１の後端側（Ｘ方向右上向き）、すなわち図示の位置であることが好ましい。 The spring seat 13 is a seat that becomes a seating surface of a spring that elastically supports the vehicle body. Since the spring seat 13 affects the formation of the internal space of the vehicle body depending on the installation location, it is preferable to install the spring seat 13 in a location where the influence is minimized. Specifically, it is preferably in the vicinity where the trailing arm 10 and the torsion beam 20 cross each other and at the rear end side (upwardly in the X direction) of the attached portion 11, that is, the position shown in the drawing.
　ショック取付部１４は、ショックアブソーバ（不図示）の一端が取り付けられる。ショック取付部１４は、スプリングシート１３の後端側にクレビス状に設けられる。ショックアブソーバの一端がクレビス形状のショック取付部１４に差し込まれ、ボルト止めされることによってショックアブソーバがトレーリングアーム１０に取り付けられる。 The shock mounting portion 14 is attached to one end of a shock absorber (not shown). The shock mounting portion 14 is provided in a clevis shape on the rear end side of the spring seat 13. The shock absorber is attached to the trailing arm 10 by inserting one end of the shock absorber into the clevis-shaped shock attachment portion 14 and bolting.
　車輪取付部１５には、スピンドル（不図示）を介して車輪（不図示）が取り付けられる。車輪取付部１５は、被取付部１１の後端側に設けられる。 Wheels (not shown) are attached to the wheel attachment portion 15 via spindles (not shown). The wheel attachment portion 15 is provided on the rear end side of the attachment portion 11.
　トーションビーム２０は、前端側が開放された軸直角断面略Ｖ字状のビームである。トーションビーム２０は左右のトレーリングアーム１０間に配置され、トーションビーム２０の端部２１が固定部３１に固定される。固定方法は例えば、溶接である。 The torsion beam 20 is a beam having a substantially V-shaped cross section with a front end opened and a right angle cross section. The torsion beam 20 is disposed between the left and right trailing arms 10, and the end 21 of the torsion beam 20 is fixed to the fixing portion 31. The fixing method is, for example, welding.
　連結部材３０は、トレーリングアーム１０及びトーションビーム２０を連結する。連結部材３０は、Ｙ方向に離間し相互に対向配置される。左右一対の連結部材３０は互いに対称に設けられるため、ここでは図１において左側の連結部材３０に着目して説明する。連結部材３０は、本体部３３と締結部材３４とを有する。 The connecting member 30 connects the trailing arm 10 and the torsion beam 20. The connecting members 30 are spaced apart from each other in the Y direction and arranged to face each other. Since the pair of left and right connecting members 30 are provided symmetrically to each other, here, the description will be given focusing on the left connecting member 30 in FIG. The connecting member 30 has a main body portion 33 and a fastening member 34.
　本体部３３は、上述したように、トーションビーム２０の端部２１と固定される固定部３１と、固定部３１の両端に折れ曲がって連続しトレーリングアーム１０の被取付部１１を挟み込むグリップ部３２と、を有する。すなわち、本体部３３は略Ｕの字形状を有する。本体部３３は、鉄によって形成される。 As described above, the main body portion 33 includes the fixing portion 31 fixed to the end portion 21 of the torsion beam 20, the grip portion 32 that is bent and continuous at both ends of the fixing portion 31 and sandwiches the attached portion 11 of the trailing arm 10. Have. That is, the main body 33 has a substantially U shape. The main body 33 is made of iron.
　グリップ部３２には、図４に示すように、Ｚ方向にグリップ部側貫通孔３２Ａ～３２Ｄが設けられる。グリップ部側貫通孔３２Ａ～３２Ｄは、図４において、右下に設けられる第５貫通孔３２Ａと、左上に設けられる第６貫通孔３２Ｂと、左下に設けられる第７貫通孔３２Ｃと、右上に設けられる第８貫通孔３２Ｄと、を有する。すなわち、第１貫通孔１１Ａ及び第５貫通孔３２Ａ、第２貫通孔１１Ｂ及び第６貫通孔３２Ｂ、第３貫通孔１１Ｃ及び第７貫通孔３２Ｃ、第４貫通孔１１Ｄ及び第８貫通孔３２Ｄは、対応した位置に設けられる。 As shown in FIG. 4, the grip portion 32 is provided with grip portion side through holes 32A to 32D in the Z direction. In FIG. 4, the grip part side through holes 32A to 32D are a fifth through hole 32A provided at the lower right, a sixth through hole 32B provided at the upper left, a seventh through hole 32C provided at the lower left, and an upper right. And an eighth through hole 32D provided. That is, the first through hole 11A and the fifth through hole 32A, the second through hole 11B and the sixth through hole 32B, the third through hole 11C and the seventh through hole 32C, the fourth through hole 11D, and the eighth through hole 32D. Are provided at corresponding positions.
　第５貫通孔３２Ａには、図４に示すように、後述する第１締結部材３４１が密着して挿入される。第６貫通孔３２Ｂは、第１貫通孔１１Ａ及び第２貫通孔１１Ｂの中心を結んだ線に直交する方向に長い長穴形状を有する。第７貫通孔３２Ｃ及び第８貫通孔３２Ｄにはそれぞれ、後述する第３締結部材３４３、第４締結部材３４４が移動可能に挿入される。すなわち、第７貫通孔３２Ｃは第３締結部材４３３に対して、第８貫通孔３２Ｄは第４締結部材４３４に対して、径が比較的大きく設けられる。 As shown in FIG. 4, a first fastening member 341 described later is inserted into the fifth through hole 32A in close contact with the fifth through hole 32A. The sixth through hole 32B has a long hole shape that is long in a direction perpendicular to a line connecting the centers of the first through hole 11A and the second through hole 11B. A third fastening member 343 and a fourth fastening member 344 described later are movably inserted into the seventh through hole 32C and the eighth through hole 32D, respectively. That is, the seventh through hole 32C is provided with a relatively large diameter with respect to the third fastening member 433, and the eighth through hole 32D is provided with a relatively large diameter with respect to the fourth fastening member 434.
　グリップ部３２の第６貫通孔３２Ｂが設けられる位置の上面には、図３に示すように、後述する軸ずれ部３４２Ｚの移動を規制する規制部３５が設けられる。規制部３５には、第６貫通孔３２Ｂに対応した位置に、第６貫通孔３２Ｂと略一致した形状の長穴３５１を有する。 As shown in FIG. 3, a restricting portion 35 that restricts movement of a shaft misalignment portion 342 </ b> Z described later is provided on the upper surface of the grip portion 32 where the sixth through hole 32 </ b> B is provided. The restricting portion 35 has a long hole 351 having a shape substantially coinciding with the sixth through hole 32B at a position corresponding to the sixth through hole 32B.
　締結部材３４は、Ｚ方向から、被取付部側貫通孔１１Ａ～１１Ｄ及びグリップ部側貫通孔３２Ａ～３２Ｄを介して、グリップ部３２及びトレーリングアーム１０を締結する。締結部材３４は、図４において、右下に設けられる第１締結部材３４１と、左上に設けられる第２締結部材３４２と、左下に設けられる第３締結部材３４３と、右上に設けられる第４締結部材３４４と、を有する。 The fastening member 34 fastens the grip part 32 and the trailing arm 10 from the Z direction through the attached part side through holes 11A to 11D and the grip part side through holes 32A to 32D. In FIG. 4, the fastening member 34 includes a first fastening member 341 provided at the lower right, a second fastening member 342 provided at the upper left, a third fastening member 343 provided at the lower left, and a fourth fastening provided at the upper right. And a member 344.
　第１締結部材３４１は、第１貫通孔１１Ａ及び第５貫通孔３２Ａを介してグリップ部３２及びトレーリングアーム１０を締結可能である。第１締結部材３４１は、図４に示すように、第１貫通孔１１Ａ及び第５貫通孔３２Ａに対して密着して挿入される。 The first fastening member 341 can fasten the grip portion 32 and the trailing arm 10 via the first through hole 11A and the fifth through hole 32A. As shown in FIG. 4, the first fastening member 341 is inserted in close contact with the first through hole 11A and the fifth through hole 32A.
　第２締結部材３４２は、第２貫通孔１１Ｂ及び第６貫通孔３２Ｂを介してグリップ部３２及びトレーリングアーム１０を締結可能である。第２締結部材３４２は、図４に示すように、第２貫通孔１１Ｂに対して密着して挿入され、第６貫通孔３２Ｂに対して、第１貫通孔１１Ａ及び第２貫通孔１１Ｂの中心を結んだ線に直交する方向に移動可能に挿入される。第２締結部材３４２は、図３に示すように、軸部３４２Ｊ及び当該軸部３４２Ｊの軸心に対して偏心した位置に軸心を有する軸ずれ部３４２Ｚが設けられる第２ボルト３４２Ｂと、第２ナット３４２Ｎと、第２ナット３４２Ｎの軸心に対して偏心した位置に軸心を有する偏心部３４２Ｈと、から構成される。軸ずれ部３４２Ｚ及び偏心部３４２Ｈは、偏心ワッシャである。軸部３４２Ｊ及び軸ずれ部３４２Ｚは、固定されて構成される。固定方法は例えば、溶接であるがこれに限られない。 The second fastening member 342 can fasten the grip portion 32 and the trailing arm 10 via the second through hole 11B and the sixth through hole 32B. As shown in FIG. 4, the second fastening member 342 is inserted in close contact with the second through hole 11B, and the center of the first through hole 11A and the second through hole 11B with respect to the sixth through hole 32B. It is inserted so as to be movable in a direction orthogonal to the line connecting the two. As shown in FIG. 3, the second fastening member 342 includes a second bolt 342 </ b> B provided with a shaft portion 342 </ b> J and a shaft offset portion 342 </ b> Z having a shaft center at a position eccentric with respect to the shaft center of the shaft portion 342 </ b> J, 2 nuts 342N and an eccentric portion 342H having an axis at a position eccentric with respect to the axis of the second nut 342N. The shaft offset part 342Z and the eccentric part 342H are eccentric washers. The shaft portion 342J and the shaft offset portion 342Z are configured to be fixed. The fixing method is, for example, welding, but is not limited thereto.
　第３締結部材３４３は、第３貫通孔１１Ｃ及び第７貫通孔３２Ｃを介してグリップ部３２及びトレーリングアーム１０を締結可能である。第３締結部材３４３は、図４に示すように、第３貫通孔１１Ｃに対して密着して挿入され、第７貫通孔３２Ｃに対して移動可能に挿入される。 The third fastening member 343 can fasten the grip portion 32 and the trailing arm 10 via the third through hole 11C and the seventh through hole 32C. As shown in FIG. 4, the third fastening member 343 is inserted in close contact with the third through hole 11C and is movably inserted into the seventh through hole 32C.
　第４締結部材３４４は、第４貫通孔１１Ｄ及び第８貫通孔３２Ｄを介してグリップ部３２及びトレーリングアーム１０を締結可能である。第４締結部材３４４は、図４に示すように、第４貫通孔１１Ｄに対して密着して挿入され、第８貫通孔３２Ｄに対して移動可能に挿入される。 The fourth fastening member 344 can fasten the grip portion 32 and the trailing arm 10 via the fourth through hole 11D and the eighth through hole 32D. As shown in FIG. 4, the fourth fastening member 344 is inserted in close contact with the fourth through hole 11D, and is movably inserted into the eighth through hole 32D.
　これらの締結部材及び貫通孔の構成によれば、第２締結部材３４２は第１締結部材３４１に対して締結位置が調整自在に設けられ、第２締結部材３４２の第１締結部材３４１に対する締結位置に基づいて、第１締結部材３４１の軸周りのトレーリングアーム１０の角度を調整可能である。 According to the structure of these fastening members and through holes, the second fastening member 342 is provided such that the fastening position thereof is adjustable with respect to the first fastening member 341, and the fastening position of the second fastening member 342 with respect to the first fastening member 341 is provided. Based on the above, the angle of the trailing arm 10 around the axis of the first fastening member 341 can be adjusted.
　以下、図４、図５（Ａ）、図５（Ｂ）を参照して、締結部材３４によって、グリップ部３２及びトレーリングアーム１０を締結する方法を説明しつつ、第２締結部材３４２の第１締結部材３４１に対する締結位置に基づいて、第１締結部材３４１の軸周りのトレーリングアーム１０の角度が調整可能であるメカニズムについて説明する。 Hereinafter, the method of fastening the grip portion 32 and the trailing arm 10 by the fastening member 34 will be described with reference to FIGS. A mechanism by which the angle of the trailing arm 10 around the axis of the first fastening member 341 can be adjusted based on the fastening position with respect to the first fastening member 341 will be described.
　まず、第１貫通孔１１Ａ及び第５貫通孔３２Ａ、第２貫通孔１１Ｂ及び第６貫通孔３２Ｂ、第３貫通孔１１Ｃ及び第７貫通孔３２Ｃ、第４貫通孔１１Ｄ及び第８貫通孔３２Ｄをそれぞれ位置合わせした状態で、第１締結部材３４１、第２締結部材３４２、第３締結部材３４３、及び第４締結部材３４４をそれぞれ仮締めする。このとき、第２締結部材３４２の軸部３４２Ｊの軸心が、軸ずれ部３４２Ｚの軸心に対して右向きに偏心した状態であったとする（図５（Ａ）参照）。この状態から、軸部３４２Ｊを反時計回りに９０度回転させると（図５（Ｂ）の矢印Ａで示す）、規制部３５が軸ずれ部３４２Ｚの移動を規制して、軸部３４２Ｊの軸心が、軸ずれ部３４２Ｚの軸心に対して、上向きに偏心した状態となる。逆に、軸部３４２Ｊを時計回りに９０度回転させると（図５（Ｂ）の矢印Ｂで示す）、規制部３５が軸ずれ部３４２Ｚの移動を規制して、軸部３４２Ｊの軸心が、軸ずれ部３４２Ｚの軸心に対して、下向きに偏心した状態となる。このとき、第２締結部材３４２は、トレーリングアーム１０の第２貫通孔１１Ｂに密着して挿入されるため、軸部３４２Ｊの軸心の移動に伴ってトレーリングアーム１０が移動する。すなわち、軸部３４２Ｊを反時計回りに９０度回転させると、図４の矢印Ａで示すように、図４において上側に第２締結部材３４２及びトレーリングアーム１０が移動するのに伴って、車輪取付部１５が内側へ車体取付部１２が外側へ移動するため、トレーリングアーム１０はトーアウトの状態となる。逆に軸部３４２Ｊを時計回りに９０度回転させると、図４の矢印Ｂで示すように、図４において下側に第２締結部材３４２及びトレーリングアーム１０が移動するのに伴って、車輪取付部１５が外側へ車体取付部１２が内側へ移動するため、トレーリングアーム１０はトーインの状態となる。 First, the first through hole 11A and the fifth through hole 32A, the second through hole 11B and the sixth through hole 32B, the third through hole 11C and the seventh through hole 32C, the fourth through hole 11D, and the eighth through hole 32D. The first fastening member 341, the second fastening member 342, the third fastening member 343, and the fourth fastening member 344 are temporarily tightened in a state where they are aligned. At this time, it is assumed that the shaft center of the shaft portion 342J of the second fastening member 342 is eccentric to the right with respect to the shaft center of the shaft misalignment portion 342Z (see FIG. 5A). From this state, when the shaft portion 342J is rotated 90 degrees counterclockwise (indicated by an arrow A in FIG. 5B), the restricting portion 35 restricts the movement of the shaft misalignment portion 342Z, and the shaft portion 342J The center is in an eccentric state upward with respect to the axis of the shaft misalignment portion 342Z. Conversely, when the shaft portion 342J is rotated 90 degrees clockwise (indicated by an arrow B in FIG. 5B), the restricting portion 35 restricts the movement of the shaft misalignment portion 342Z, and the shaft center of the shaft portion 342J is In this state, the shaft is eccentric downward with respect to the shaft center of the shaft misalignment portion 342Z. At this time, since the second fastening member 342 is inserted in close contact with the second through hole 11B of the trailing arm 10, the trailing arm 10 moves as the axis of the shaft portion 342J moves. That is, when the shaft portion 342J is rotated 90 degrees counterclockwise, as shown by an arrow A in FIG. 4, the wheel is moved as the second fastening member 342 and the trailing arm 10 move upward in FIG. Since the attachment portion 15 moves inward and the vehicle body attachment portion 12 moves outward, the trailing arm 10 is in a toe-out state. On the contrary, when the shaft portion 342J is rotated 90 degrees clockwise, as shown by an arrow B in FIG. 4, the wheel is moved as the second fastening member 342 and the trailing arm 10 move downward in FIG. Since the mounting portion 15 moves outward and the vehicle body mounting portion 12 moves inward, the trailing arm 10 is in a toe-in state.
　以上、説明したように、本実施形態に係るトーションビーム式サスペンション１は、アルミによって形成され相互に対向配置された左右一対のトレーリングアーム１０と、左右一対のトレーリングアーム１０間に配置されるトーションビーム２０と、トレーリングアーム１０及びトーションビーム２０を連結する連結部材３０と、を有し、連結部材３０は、トーションビーム２０の端部２１と固定される固定部３１と、固定部３１の両端に折れ曲がって連続しトレーリングアーム１０の被取付部１１を挟み込むグリップ部３２と、を備える本体部３３、及び、グリップ３２部及びトレーリングアーム１０を締結する締結部材３４、を有する。このため、アルミによって形成されたトレーリングアーム１０、及びトーションビーム２０を連結する連結部材３０は、トレーリングアーム１０の被取付部１１を挟み込むグリップ部３２を有する。したがって、信頼性の高い連結構造を用いてトーションビーム２０と、アルミによって形成したトレーリングアーム１０と、が連結されたトーションビーム式サスペンション１を提供することができる。 As described above, the torsion beam suspension 1 according to the present embodiment includes a pair of left and right trailing arms 10 made of aluminum and arranged to face each other, and a torsion beam disposed between the pair of left and right trailing arms 10. 20, and a connecting member 30 that connects the trailing arm 10 and the torsion beam 20, and the connecting member 30 is bent at both ends of the fixing portion 31 and a fixing portion 31 that is fixed to the end portion 21 of the torsion beam 20. A main body portion 33 including a grip portion 32 that continuously holds the attached portion 11 of the trailing arm 10, and a fastening member 34 that fastens the grip 32 portion and the trailing arm 10. For this reason, the trailing arm 10 made of aluminum and the connecting member 30 that connects the torsion beam 20 have a grip portion 32 that sandwiches the attached portion 11 of the trailing arm 10. Therefore, it is possible to provide the torsion beam suspension 1 in which the torsion beam 20 and the trailing arm 10 formed of aluminum are connected using a highly reliable connection structure.
　また、グリップ部３２は、トレーリングアーム１０の被取付部１１をＺ方向から挟み込み、締結部材３４は、Ｚ方向からグリップ部３２及びトレーリングアーム１０を締結し、締結部材３４は、第１締結部材３４１と第２締結部材３４２とを有し、第２締結部材３４２は第１締結部材３４１に対して締結位置が調整自在に設けられ、第２締結部材３４２の第１締結部材３４１に対する締結位置に基づいて、第１締結部材３４１の軸周りのトレーリングアーム１０の角度を調整可能である。このため、第２締結部材３４２の第１締結部材３４１に対する締結位置を調整することによって、車両に搭載した際におけるトー角の調整が可能である。 The grip portion 32 sandwiches the attached portion 11 of the trailing arm 10 from the Z direction, the fastening member 34 fastens the grip portion 32 and the trailing arm 10 from the Z direction, and the fastening member 34 is the first fastening. The second fastening member 342 has a member 341 and a second fastening member 342, the fastening position of the second fastening member 342 is adjustable with respect to the first fastening member 341, and the fastening position of the second fastening member 342 with respect to the first fastening member 341 Based on the above, the angle of the trailing arm 10 around the axis of the first fastening member 341 can be adjusted. For this reason, by adjusting the fastening position of the second fastening member 342 relative to the first fastening member 341, the toe angle when mounted on the vehicle can be adjusted.
　また、トレーリングアーム１０はアルミによって形成される。このため、製造コストの低減を図ることができる。 Further, the trailing arm 10 is made of aluminum. For this reason, the manufacturing cost can be reduced.
　なお、本発明は上述した実施の形態に限定されるものではなく、特許請求の範囲内で種々改変することができる。 Note that the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims.
　例えば、締結部材３４は、グリップ部３２の上下方向から締結したが、左右方向から締結してもよい。 For example, although the fastening member 34 is fastened from the vertical direction of the grip portion 32, it may be fastened from the left-right direction.
　また、グリップ部３２は、トレーリングアーム１０の被取付部１１を上下方向から挟み込んだが、前後方向から挟み込む構成であってもよい。このとき、上述した第１締結部材３４１及び第２締結部材３４２をＸ方向から締結することによって、車両に搭載した際におけるキャンバー角の調整が可能である。 In addition, the grip portion 32 sandwiches the attached portion 11 of the trailing arm 10 from the up-and-down direction, but may be configured to sandwich from the front-and-rear direction. At this time, by fixing the first fastening member 341 and the second fastening member 342 described above from the X direction, the camber angle when mounted on the vehicle can be adjusted.
　また、トーションビーム２０と本体部３３とは別体で構成されたが、一体に構成されてもよい。 Further, although the torsion beam 20 and the main body 33 are configured separately, they may be configured integrally.
　また、トーションビーム２０の軸直角断面は略Ｖ字形状に設けられたが、これに限定されない。 Further, although the cross section perpendicular to the axis of the torsion beam 20 is provided in a substantially V shape, the present invention is not limited to this.
　また、規制部３５はグリップ部３２上に別体に設けられたが、一体的に設けられてもよい。 Further, although the restricting portion 35 is provided separately on the grip portion 32, it may be provided integrally.
　　１　　トーションビーム式サスペンション、
　　１０　　トレーリングアーム、
　　１１　　被取付部（トレーリングアームの一部）、
　　２０　　トーションビーム、
　　２１　　端部、
　　３０　　連結部材、
　　３１　　固定部、
　　３２　　グリップ部、
　　３３　　本体部、
　　３４　　締結部材、
　　３４１　　第１締結部材、
　　３４２　　第２締結部材。 1 Torsion beam suspension,
10 trailing arm,
11 Mounted part (part of the trailing arm),
20 Torsion beam,
21 end,
30 connecting member,
31 fixing part,
32 grip part,
33 body,
34 fastening members,
341 first fastening member,
342 Second fastening member.

Claims (3)

  1. 　軽合金によって形成され相互に対向配置された左右一対のトレーリングアームと、
    　左右一対の前記トレーリングアーム間に配置されるトーションビームと、
    　前記トレーリングアーム及び前記トーションビームを連結する連結部材と、を有し、
    　前記連結部材は、
    　前記トーションビームの端部と固定される固定部と、前記固定部の両端に折れ曲がって連続し前記トレーリングアームの一部を挟み込むグリップ部と、を備える本体部、及び、
    　前記グリップ部及び前記トレーリングアームを締結する締結部材、を有するトーションビーム式サスペンション。     A pair of left and right trailing arms formed of a light alloy and arranged to face each other;
    A torsion beam disposed between the pair of left and right trailing arms;
    A connecting member for connecting the trailing arm and the torsion beam,
    The connecting member is
    A main body comprising: a fixed portion fixed to an end of the torsion beam; and a grip portion that is bent and continuous at both ends of the fixed portion and sandwiches a part of the trailing arm; and
    A torsion beam suspension having a gripping member and a fastening member for fastening the trailing arm.
  2. 　前記グリップ部は、前記トレーリングアームの一部を車体搭載時の上下方向から挟み込み、前記締結部材は、前記上下方向から前記グリップ部及び前記トレーリングアームを締結し、
    　前記締結部材は、少なくとも第１締結部材と第２締結部材とを有し、前記第２締結部材は前記第１締結部材に対して締結位置が調整自在に設けられ、
    　前記第２締結部材の前記第１締結部材に対する締結位置に基づいて、前記第１締結部材の軸周りの前記トレーリングアームの角度を調整可能である請求項１に記載のトーションビーム式サスペンション。     The grip portion sandwiches a part of the trailing arm from the vertical direction when mounted on a vehicle body, and the fastening member fastens the grip portion and the trailing arm from the vertical direction,
    The fastening member includes at least a first fastening member and a second fastening member, and the second fastening member is provided such that a fastening position is adjustable with respect to the first fastening member,
    The torsion beam suspension according to claim 1, wherein an angle of the trailing arm around an axis of the first fastening member can be adjusted based on a fastening position of the second fastening member with respect to the first fastening member.
  3. 　前記トレーリングアームはアルミによって形成される請求項１または２に記載のトーションビーム式サスペンション。 The torsion beam suspension according to claim 1 or 2, wherein the trailing arm is made of aluminum.
PCT/JP2013/060943 2013-04-11 2013-04-11 Torsion beam-type suspension WO2014167689A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016190573A (en) * 2015-03-31 2016-11-10 ダイハツ工業株式会社 Torsion beam type suspension
CN107985001A (en) * 2017-12-08 2018-05-04 阿尔特汽车技术股份有限公司 Aluminum-steel hybrid torsion girder construction

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63150804U (en) * 1987-03-26 1988-10-04
JPH039904U (en) * 1989-06-19 1991-01-30
JPH10157427A (en) * 1996-11-05 1998-06-16 Alusuisse Technol & Manag Ltd Wheel suspension
JP2010089601A (en) * 2008-10-07 2010-04-22 Toyota Motor Corp Alignment adjusting mechanism of torsion beam type suspension
JP2012240587A (en) * 2011-05-20 2012-12-10 Mitsubishi Motors Corp Vehicle body structure of vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63150804U (en) * 1987-03-26 1988-10-04
JPH039904U (en) * 1989-06-19 1991-01-30
JPH10157427A (en) * 1996-11-05 1998-06-16 Alusuisse Technol & Manag Ltd Wheel suspension
JP2010089601A (en) * 2008-10-07 2010-04-22 Toyota Motor Corp Alignment adjusting mechanism of torsion beam type suspension
JP2012240587A (en) * 2011-05-20 2012-12-10 Mitsubishi Motors Corp Vehicle body structure of vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016190573A (en) * 2015-03-31 2016-11-10 ダイハツ工業株式会社 Torsion beam type suspension
CN107985001A (en) * 2017-12-08 2018-05-04 阿尔特汽车技术股份有限公司 Aluminum-steel hybrid torsion girder construction

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