WO2014167689A1 - Suspension de type à longeron de torsion - Google Patents

Suspension de type à longeron de torsion 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
Authority
WO
WIPO (PCT)
Prior art keywords
fastening member
torsion beam
trailing arm
hole
fastening
Prior art date
Application number
PCT/JP2013/060943
Other languages
English (en)
Japanese (ja)
Inventor
松本　正春
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/JP2013/060943 priority Critical patent/WO2014167689A1/fr
Publication of WO2014167689A1 publication Critical patent/WO2014167689A1/fr

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Classifications

    • 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.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

La présente invention concerne une suspension de type à longeron de torsion dans laquelle un longeron de torsion et des bras longitudinaux formés d'un alliage léger sont couplés à l'aide d'une structure de couplage extrêmement fiable. L'invention concerne donc une suspension de type à longeron de torsion (1) qui possède une paire de bras longitudinaux gauche et droit (10) qui sont formés d'un alliage léger et disposés en regard l'un de l'autre, un longeron de torsion (20) disposé entre la paire de bras longitudinaux gauche et droit et des éléments de couplage (30) destinés à coupler les bras longitudinaux au longeron de torsion. Les éléments de couplage comportent chacun les éléments suivants : une partie de corps principal (33) munie d'une partie fixe (31), qui est fixée à une partie d'extrémité (21) du longeron de torsion, et une section de préhension (32) qui est continue d'une manière courbée au niveau des deux extrémités de la section fixe et qui prend en sandwich une partie du bras longitudinal ; un élément de fixation (34) destiné à fixer la section de préhension et le bras longitudinal ensemble.
PCT/JP2013/060943 2013-04-11 2013-04-11 Suspension de type à longeron de torsion WO2014167689A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/060943 WO2014167689A1 (fr) 2013-04-11 2013-04-11 Suspension de type à longeron de torsion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/060943 WO2014167689A1 (fr) 2013-04-11 2013-04-11 Suspension de type à longeron de torsion

Publications (1)

Publication Number Publication Date
WO2014167689A1 true WO2014167689A1 (fr) 2014-10-16

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PCT/JP2013/060943 WO2014167689A1 (fr) 2013-04-11 2013-04-11 Suspension de type à longeron de torsion

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016190573A (ja) * 2015-03-31 2016-11-10 ダイハツ工業株式会社 トーションビーム式サスペンション
CN107985001A (zh) * 2017-12-08 2018-05-04 阿尔特汽车技术股份有限公司 钢铝混合扭力梁结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63150804U (fr) * 1987-03-26 1988-10-04
JPH039904U (fr) * 1989-06-19 1991-01-30
JPH10157427A (ja) * 1996-11-05 1998-06-16 Alusuisse Technol & Manag Ltd ホイールサスペンション
JP2010089601A (ja) * 2008-10-07 2010-04-22 Toyota Motor Corp トーションビーム式サスペンションのアライメント調整機構
JP2012240587A (ja) * 2011-05-20 2012-12-10 Mitsubishi Motors Corp 車両の車体構造

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63150804U (fr) * 1987-03-26 1988-10-04
JPH039904U (fr) * 1989-06-19 1991-01-30
JPH10157427A (ja) * 1996-11-05 1998-06-16 Alusuisse Technol & Manag Ltd ホイールサスペンション
JP2010089601A (ja) * 2008-10-07 2010-04-22 Toyota Motor Corp トーションビーム式サスペンションのアライメント調整機構
JP2012240587A (ja) * 2011-05-20 2012-12-10 Mitsubishi Motors Corp 車両の車体構造

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016190573A (ja) * 2015-03-31 2016-11-10 ダイハツ工業株式会社 トーションビーム式サスペンション
CN107985001A (zh) * 2017-12-08 2018-05-04 阿尔特汽车技术股份有限公司 钢铝混合扭力梁结构
CN107985001B (zh) * 2017-12-08 2024-07-30 阿尔特汽车技术股份有限公司 钢铝混合扭力梁结构

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