WO2014203420A1 - サスペンションアームおよびその製造方法 - Google Patents
サスペンションアームおよびその製造方法 Download PDFInfo
- Publication number
- WO2014203420A1 WO2014203420A1 PCT/JP2013/079637 JP2013079637W WO2014203420A1 WO 2014203420 A1 WO2014203420 A1 WO 2014203420A1 JP 2013079637 W JP2013079637 W JP 2013079637W WO 2014203420 A1 WO2014203420 A1 WO 2014203420A1
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- WIPO (PCT)
- Prior art keywords
- tip
- cylinder
- suspension arm
- peripheral surface
- outer peripheral
- Prior art date
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Classifications
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- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
- B23K33/008—Filling of continuous seams for automotive applications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/08—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads made from sheet metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- 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
- B60G2206/012—Hollow or tubular elements
-
- 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
- B60G2206/017—Constructional features of suspension elements, e.g. arms, dampers, springs forming an eye for the bushing
-
- 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
-
- 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
- B60G2206/10—Constructional features of arms
- B60G2206/14—Constructional features of arms the arm forming a U-shaped recess for fitting a bush
-
- 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
- B60G2206/8201—Joining by welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
- F16C9/04—Connecting-rod bearings; Attachments thereof
Definitions
- the present invention relates to a suspension arm, and more particularly to a suspension arm in which a bushing outer cylinder is integrally joined by welding so as to close an opening at a tip end of a cylindrical joint provided in a suspension arm body. is there.
- a suspension arm in which a bushing outer cylinder is integrally joined to a suspension arm main body by welding is widely used as a component for a vehicle suspension system.
- the suspension arm described in Patent Document 1 is an example, and a bushing outer cylinder is integrally welded to a cylindrical joint provided in the suspension arm main body.
- a protrusion is provided so as to close the opening of the cylindrical joint of the arm body. If the opening of the cylindrical joint is thus closed by the bushing outer cylinder, it is possible to prevent water and mud from entering the suspension arm body and generating rust.
- the manufacturing cost is increased by an increase in the number of molding steps of the protruding portion compared to the case of using a simple round pipe. .
- it is necessary to manage the dimensional accuracy of the protrusions and the cylindrical joints so that the protrusions and the cylindrical joints are substantially in contact with each other it is necessary to perform welding according to the shape of the protrusions. Become up.
- the present invention has been made against the background of the above circumstances.
- the object of the present invention is to provide a suspension arm to which the outer cylinder for bushing is welded so as to close the opening at the tip of the cylindrical joint of the suspension arm body. It is to be able to manufacture.
- an outer cylinder for bushing is integrally joined to the distal end of the cylindrical joint portion provided in the suspension arm main body by welding so as to be closed.
- a suspension arm manufacturing method in which a bushing outer cylinder is integrally joined to a tip thereof by welding so that an opening at a tip of a cylindrical joint provided in the suspension arm body is closed.
- the tip has an arc shape corresponding to the outer peripheral surface of the cylinder so as to be in contact with the outer peripheral surface of the cylinder over the entire circumference by being abutted against the outer peripheral surface of the bushing outer cylinder.
- welding is performed on the entire circumference of the distal end to join the cylindrical outer circumferential surface.
- the suspension arm manufacturing method in the suspension arm manufacturing method according to the second aspect of the invention, (a) at least the inner peripheral edge of the opening is brought into contact with the outer peripheral surface of the cylinder at the outer peripheral end of the arc shape at the tip.
- the outer end surface which is equal to or more than the thickness of the outer end portion of the outer end portion is as it goes to the outer end so that a V-shaped depression is formed between the outer peripheral surface and the cylindrical outer peripheral surface. It is separated from the outer peripheral surface of the cylinder, and (c) the outer end where the depression is formed is welded toward the depression so as to receive heat including the bottom of the depression.
- the opening angle ⁇ of the recess is 30 ° or more
- the end surface of the outer end portion is relative to the axis of the cylindrical joint.
- the outer end portion is provided in a range not more than the thickness t of the outer end portion and not less than 1 ⁇ 2 of the thickness t.
- the tip of the cylindrical joint has an arc shape corresponding to the cylindrical outer peripheral surface of the outer cylinder for bushing, and the tip of the cylindrical joint has a cylindrical outer peripheral surface over the entire circumference. Since the tip is welded to the outer circumferential surface of the cylinder over the entire circumference, the opening at the tip of the cylindrical joint is properly closed by the bushing outer cylinder, and water into the suspension arm body Mud entry is properly prevented.
- a round pipe can be used as it is as an outer cylinder for the bush, and no special dimensional accuracy control is required for the cylindrical joint, since the tip has an arc shape. Since it suffices to perform along the outer peripheral surface, the manufacturing cost can be reduced as compared with the case where the protrusion is provided on the bushing outer cylinder as in Patent Document 1.
- substantially the same effect as the first invention can be obtained.
- at the outer circumferential end of the circular arc shape at the tip of the cylindrical joint at least the inner peripheral edge of the opening is brought into contact with the cylindrical outer peripheral surface, and the end face of the outer end (outer end face) ) And the cylindrical outer peripheral surface of the outer cylinder for bushing, and welding is performed so that heat is input including the bottom of the depression. Heat is input in a well-balanced manner to the outer cylinder for the bush, and the penetration depth and leg length with respect to the outer cylinder for the bush are expanded while the opening at the tip of the cylindrical joint is securely closed by the outer cylinder for the bush. High bonding strength can be obtained at the outer end portion.
- the opening angle ⁇ of the recess is 30 ° or more, it is possible to easily perform welding so that heat is input from the recess to the tubular joint and the bushing outer cylinder in a balanced manner.
- the end surface of the outer end portion that forms the depression is not more than the thickness t of the outer end portion from the outer end of the outer end portion in a direction perpendicular to the axis of the cylindrical joint, and is 1 ⁇ 2 of the thickness t. Since it is provided in the above range, a sufficiently large recess can be secured and the bonding strength can be improved while the opening at the tip of the cylindrical joint is reliably closed by the bushing outer cylinder.
- the end surface of the outer end portion is larger than the wall thickness t, a gap is formed between the opening at the tip of the cylindrical joint and the cylindrical outer peripheral surface of the outer cylinder for bushing, so that water or the like enters depending on the welding state.
- the end face of the outer end portion is smaller than 1 ⁇ 2 of the thickness t, the depression becomes small and the effect of improving the bonding strength by improving the balance of heat input cannot be obtained sufficiently.
- FIG. 2 is an enlarged sectional view taken along the line II-II in FIG. It is sectional drawing which expands and shows the III collar part of FIG.
- FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 2.
- FIG. 2 is a front view of a state in which a tip of a cylindrical joint portion of a suspension arm body is butted against an outer cylinder for bushing before the suspension arm of FIG. 1 is welded.
- FIG. 6 is an enlarged view showing the upper half of the tip of the cylindrical joint in FIG. 5, (a) is a front view corresponding to FIG.
- FIG. 5 is a view showing another example of a suspension arm body, and is a cross-sectional view corresponding to FIG. 4.
- FIG. 10 is a view showing still another example of the suspension arm body, and is a cross-sectional view corresponding to FIG. 4.
- FIG. 10 is a view showing still another example of the suspension arm body, and is a cross-sectional view corresponding to FIG. 4.
- the suspension arm body may have a hollow longitudinal shape, for example, and both end portions in the longitudinal direction may be used as a cylindrical joint portion, but it has at least one cylindrical joint portion and the bush outer cylinder is fixed by welding. If it is a thing, various aspects, such as a bifurcated shape, are possible.
- the outer cylinder for the bush is provided with an inner cylinder through an elastic member or the like, for example, and is attached to the vehicle via the inner cylinder, and a round pipe is preferably used.
- the tip of the cylindrical joint has an arc shape corresponding to the outer peripheral surface of the cylinder so as to be in contact with the outer peripheral surface of the bushing outer cylinder over the entire circumference. For example, at least the inner peripheral edge of the opening at the tip extends over the entire circumference.
- a flat surface perpendicular to the axis of the cylindrical joint portion of the suspension arm body is appropriate as the outer end surface that forms the V-shaped depression between the outer peripheral surface of the bushing outer cylinder and the cylindrical outer surface. It may be a flat inclined surface inclined from the direction perpendicular to the axis to the bushing outer cylinder side or the opposite side.
- the opening angle ⁇ of the depression is suitably 30 ° or more, and preferably 45 ° or more. However, even if it is less than 30 °, the heat input balance is improved and the bonding strength is improved.
- the outer end portion end surface is in a range from the outer end of the outer end portion to a thickness t or less of the outer end portion and a half or more of the thickness t in a direction perpendicular to the axis of the cylindrical joint portion.
- the heat input balance is improved by the depression, and the bonding strength is improved.
- the V-shaped depression is not necessarily required, and the entire area of the tip of the cylindrical joint including the outer end is formed into an arc shape corresponding to the cylindrical outer peripheral surface. A case where the entire front end surface including the end surface of the outer end portion is substantially in close contact with the outer peripheral surface of the cylinder.
- the cylindrical joint of the suspension arm body has, for example, a hollow cross section perpendicular to the axis of the cylindrical joint having a longitudinal shape (eg, oval or rectangular), and the longitudinal direction of the longitudinal shape and the center of the outer cylinder for bushing
- the cylinder is abutted against the cylindrical outer peripheral surface of the bushing outer cylinder in a posture that is substantially perpendicular to the line, and has an arc shape corresponding to the cylindrical outer peripheral surface in the longitudinal direction.
- the longitudinal hollow section is abutted in a posture in which the longitudinal direction is substantially parallel to the center line of the outer cylinder for bushing, and it may have an arc shape corresponding to the outer peripheral surface of the cylinder in the minor axis direction perpendicular to the longitudinal direction.
- Various modes are possible, such as a cylindrical joint having a cross section.
- various welding methods such as consumable electrode arc welding, non-consumable electrode arc welding, laser welding, and electron beam welding can be used.
- FIG. 1 is a perspective view of a suspension arm 10 used in a vehicle suspension system, which is manufactured according to the method of the present invention.
- the suspension arm 10 includes a hollow and elongated suspension arm body 12 and a pair of bushing outer cylinders 16 integrally fixed to both end portions 14 in the longitudinal direction of the suspension arm body 12 by welding. ing.
- the bushing outer cylinder 16 is constituted by a round pipe, and an inner cylinder is provided inside via an elastic member, and is attached to the vehicle via the inner cylinder. Both end portions 14 of the suspension arm main body 12 correspond to a cylindrical joint portion.
- FIG. 2 is an enlarged cross-sectional view taken along the line II-II in FIG. 1, that is, a cross-sectional view of the joint portion between the suspension arm main body 12 and the bushing outer cylinder 16, and FIG. 2 is an enlarged cross-sectional view of a melt-bonded portion (mesh portion) W.
- 4 is a cross-sectional view taken along the line IV-IV in FIG. 2, that is, a cross-sectional view perpendicular to the axis O of the end portion 14.
- the suspension arm body 12 has an oval hollow cross section including both end portions 14 which are cylindrical joint portions, and the longitudinal direction of the oval shape (FIG. 2).
- the end portion 14 is a cylindrical outer peripheral surface 18 of the bushing outer cylinder 16 in a posture in which the axis O and the centerline S are substantially orthogonal to each other. Are joined together.
- the tip 20 of the end portion 14 has an arc shape corresponding to the cylindrical outer peripheral surface 18 in the longitudinal direction of the oval shape, and is welded to the cylindrical outer peripheral surface 18 over the entire circumference of the oval shape. In this way, the tip 20 of the end portion 14 of the suspension arm body 12 is welded to the cylindrical outer peripheral surface 18 over the entire circumference, so that the opening 21 (see FIG. 7) of the tip 20 is closed by the bushing outer tube 16.
- the axis O and the center line S are perpendicular to each other.
- FIG. 5 and 6 are views showing a state before the bushing outer cylinder 16 is welded to the suspension arm body 12, and FIG. 5 is a state in which the end 14 of the suspension arm body 12 is abutted against the bushing outer cylinder 16.
- FIG. 6 is a front view and a perspective view of the butted portion.
- 7 is an enlarged view showing the upper half of the tip 20 of the end portion 14 of the suspension arm body 12 in FIG. 5.
- (a) is a front view corresponding to FIG. 5, and (b) is from the tip side.
- FIG. As is apparent from these drawings, the tip 20 of the end 14 is such that the inner peripheral edge 22 of the oval opening 21 is substantially in contact with the cylindrical outer peripheral surface 18 of the bushing outer cylinder 16 over the entire circumference.
- the elliptical opening 21 has the arc shape except for the outer end 24 which is the longitudinal end of the opening 21, and the end surface of the tip 20 excluding the outer end 24 extends from the inner peripheral edge 22.
- the cylindrical outer peripheral surface 18 is brought into substantially surface contact until reaching the outer peripheral edge.
- the end face of the outer end 24, that is, the outer end face 26, is separated from the cylindrical outer peripheral surface 18 toward the outer end (the outer edge in the vertical direction in FIG. 5), and between the cylindrical outer peripheral face 18.
- a V-shaped depression 28 is formed.
- the outer end surface 26 is a flat surface perpendicular to the axis O of the end 14, and the thickness t at the outer end 24 from the outer end of the outer end 24 in a direction perpendicular to the axis O. In the present embodiment, it is provided within a range that is equal to or slightly narrower than the thickness t in the following range and within a range of 1/2 or more of the thickness t.
- the opening angle ⁇ of the depression 28, that is, the angle between the tangential direction of the cylindrical outer peripheral surface 18 and the outer end face 26 is 30 ° or more, and is about 55 ° in this embodiment.
- the arcuate tip 20 of the end portion 14 of the bushing outer cylinder 16 is arranged so that the inner peripheral edge 22 of the opening 21 is in contact with the cylindrical outer peripheral surface 18 over the entire circumference.
- welding is performed on the entire circumference of the tip 20 including the outer end portion 24 where the recess 28 is formed, and the cylindrical outer peripheral surface 18 is integrally joined.
- the welding torch 30 is welded toward the inside of the recess 28 as shown in FIG. 8, and the bottom portion (V-shaped corner) of the recess 28 is included. So that the heat is input.
- the penetration depth d of W and the leg length L can be sufficiently secured, and a predetermined bonding strength can be stably obtained.
- the welding method for example, consumable electrode arc welding is preferably used.
- the penetration depth d is the maximum depth in the normal direction of the cylindrical outer peripheral surface 18 with respect to the cylindrical outer peripheral surface 18 before welding of the bushing outer cylinder 16, and the leg length L is calculated from the cylindrical outer peripheral surface 18. This is the length of a line segment between the intersections of a virtual circle (two-dot chain line) having a depth of 0.1 mm in the line direction and the melt-bonded portion W.
- the tip 20 of the end 14 that functions as a cylindrical joint has an arc shape corresponding to the cylindrical outer peripheral surface 18 of the bushing outer cylinder 16, and the tip Since the front end 20 is welded to the cylindrical outer peripheral surface 18 over the entire circumference in a state where the 20 is substantially in contact with the cylindrical outer peripheral surface 18 over the entire circumference, the opening 21 of the front end 20 is appropriately formed by the bushing outer cylinder 16. Thus, water and mud are prevented from entering the suspension arm body 12 appropriately.
- a round pipe can be used as it is as the outer cylinder 16 for the bush, and the end portion 14 is also made to have a circular arc shape at the tip 20, and no special dimensional accuracy management is required. Since it suffices to perform along the cylindrical outer peripheral surface 18 of the outer cylinder 16 for manufacturing, the manufacturing cost is reduced as compared with the case where the protrusion is provided on the outer cylinder for bushing as in Patent Document 1.
- the inner peripheral edge 22 of the opening 21 is brought into contact with the cylindrical outer peripheral surface 18, and the outer end end surface 26 and the cylindrical outer peripheral surface 18 of the bushing outer cylinder 16 A V-shaped recess 28 is formed between them, and welding is performed so that heat is input including the bottom of the recess 28. Therefore, heat is input from the recess 28 to the outer end 24 and the bushing outer cylinder 16 with good balance, and the opening 21 at the tip 20 of the end 14 is reliably closed by the bushing outer cylinder 16. Further, the penetration depth d and the leg length L with respect to the bushing outer cylinder 16 are expanded, and a high bonding strength is also obtained at the outer end 24 thereof.
- the opening angle ⁇ of the recess 28 is 55 °, it is easy to perform welding so that heat is input from the recess 28 to the outer end 24 and the bushing outer cylinder 16 in a balanced manner. Is possible.
- the outer end portion end surface 26 that forms the recess 28 is provided in the substantially same range as the thickness t of the outer end portion 24 from the outer end of the outer end portion 24 in a direction substantially perpendicular to the axis O of the end portion 14. Therefore, the opening 21 of the tip 20 can be reliably closed by the bushing outer cylinder 16 and a sufficiently large recess 28 can be secured to improve the bonding strength.
- the bushing outer cylinder 16 extends over the entire area in the longitudinal direction of the oval opening 21, in other words, the entire area in the arc-shaped circumferential direction of the tip 20.
- the entire region of the tip 20 including the outer end portion 24 is formed in an arc shape corresponding to the cylindrical outer peripheral surface 18 so as to make surface contact with the cylindrical outer peripheral surface 18, and the entire periphery of the tip 20 is made to the cylindrical outer peripheral surface 18 by the welding torch 30. It is also possible to weld.
- the thickness t gradually decreases and extends on the cylindrical outer peripheral surface 18, and welding is performed toward the outer peripheral surface of the outer end 24.
- FIGS. 12 and 13 are also examples of the first invention and the second invention.
- the hollow cross section of the suspension arm body 12 including the end portion 14 functioning as the cylindrical joint portion has an oval shape.
- a suspension arm body 40 having a rectangular hollow cross section having a straight portion can be used.
- a suspension arm having an oval hollow cross section similar to that of the above embodiment by butting a pair of halved steel plates 42 and 44 and joining them together by welding or the like.
- a suspension arm having a rectangular hollow cross section similar to that of FIG. 9 is formed by abutting a pair of halved steel plates 48 and 50 and integrally joining them by welding or the like.
- the main body 52 can also be used.
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- General Engineering & Computer Science (AREA)
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Abstract
Description
図1は、車両の懸架装置に用いられるサスペンションアーム10の斜視図で、本発明方法に従って製造されたものである。このサスペンションアーム10は、中空で長手形状のサスペンションアーム本体12と、そのサスペンションアーム本体12の長手方向の両端部14にそれぞれ溶接により一体的に固設された一対のブッシュ用外筒16とを備えている。ブッシュ用外筒16は丸パイプにて構成されているとともに、内部に弾性部材を介して内筒が設けられ、その内筒を介して車両に取り付けられる。サスペンションアーム本体12の両端部14は筒状接合部に相当する。
14:端部(筒状接合部) 16:ブッシュ用外筒 18:円筒外周面 20:先端 21:開口 22:内周縁部 24:外端部 26:外端部端面 28:窪み O:軸線 S:中心線 θ:開き角度 t:肉厚
Claims (4)
- サスペンションアーム本体に設けられた筒状接合部の先端の開口が塞がれるように、該先端にブッシュ用外筒が溶接により一体的に接合されているサスペンションアームにおいて、
前記先端は、前記ブッシュ用外筒の円筒外周面に突き合わされることにより全周に亘って該円筒外周面に接するように、該円筒外周面に対応する円弧形状とされており、
該先端が全周に亘って前記円筒外周面に接するように突き合わされた状態で、該先端が全周に亘って該円筒外周面に溶接されている
ことを特徴とするサスペンションアーム。 - サスペンションアーム本体に設けられた筒状接合部の先端の開口が塞がれるように、該先端にブッシュ用外筒を溶接により一体的に接合するサスペンションアームの製造方法において、
前記先端は、前記ブッシュ用外筒の円筒外周面に突き合わされることにより全周に亘って該円筒外周面に接するように、該円筒外周面に対応する円弧形状とされており、
該先端が全周に亘って前記円筒外周面に接するように突き合わせた状態で、該先端の全周に溶接を施して該円筒外周面に接合する
ことを特徴とするサスペンションアームの製造方法。 - 前記先端の前記円弧形状の周方向の外端部では、少なくとも前記開口の内周縁部が前記円筒外周面に接触させられる一方、
該外端部の肉厚と同じかそれより外側の外端部端面は、前記円筒外周面との間にV字状の窪みが形成されるように外端へ向かうに従って該円筒外周面から離間させられており、
前記窪みが形成される前記外端部では、該窪みの底部を含んで入熱されるように該窪みに向かって溶接する
ことを特徴とする請求項2に記載のサスペンションアームの製造方法。 - 前記窪みの開き角度θは30°以上で、
前記外端部端面は、前記筒状接合部の軸線に対して直角な方向において前記外端部の外端から該外端部の肉厚t以下で且つ該肉厚tの1/2以上の範囲に設けられている
ことを特徴とする請求項3に記載のサスペンションアームの製造方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN201380077655.2A CN105324258A (zh) | 2013-06-19 | 2013-10-31 | 悬架臂及其制造方法 |
EP13887304.7A EP3012132A4 (en) | 2013-06-19 | 2013-10-31 | Suspension arm and manufacturing method therefor |
US14/900,461 US9855808B2 (en) | 2013-06-19 | 2013-10-31 | Suspension arm and method of producing the same |
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JP2013128947A JP5913210B2 (ja) | 2013-06-19 | 2013-06-19 | サスペンションアームおよびその製造方法 |
JP2013-128947 | 2013-06-19 |
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WO2014203420A1 true WO2014203420A1 (ja) | 2014-12-24 |
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PCT/JP2013/079637 WO2014203420A1 (ja) | 2013-06-19 | 2013-10-31 | サスペンションアームおよびその製造方法 |
Country Status (5)
Country | Link |
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US (1) | US9855808B2 (ja) |
EP (1) | EP3012132A4 (ja) |
JP (1) | JP5913210B2 (ja) |
CN (1) | CN105324258A (ja) |
WO (1) | WO2014203420A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016113793A1 (ja) * | 2015-01-13 | 2016-07-21 | 株式会社ブリヂストン | 防振装置 |
WO2016196494A1 (en) * | 2015-06-01 | 2016-12-08 | Hendrickson Usa, L.L.C. | Torque rod for vehicle suspension |
CN107020906A (zh) * | 2016-02-01 | 2017-08-08 | 福特全球技术公司 | 制造悬挂控制臂的方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108331833A (zh) * | 2018-03-19 | 2018-07-27 | 湖北耀洋汽车配件有限公司 | 一种新型推力杆总成 |
DE102019005557B3 (de) * | 2019-08-08 | 2020-11-26 | Daimler Ag | Radaufhängung für einen Kraftwagen, insbesondere für einen Personenkraftwagen, sowie Kraftwagen mit wenigstens einer solchen Radaufhängung |
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DE4327703A1 (de) * | 1993-08-18 | 1995-02-23 | Lemfoerder Metallwaren Ag | Winkelgelenk für Fahrwerksteile in einem Kraftfahrzeug |
US5639110A (en) * | 1994-04-14 | 1997-06-17 | Nai Neway, Inc. | Trailing arm suspension |
FR2764827B1 (fr) * | 1997-06-18 | 1999-08-20 | Vallourec Vitry | Procede pour la liaison de deux pieces tubulaires l'une a l'autre, ensemble mecanique correspondant, et application, notamment aux bras de suspension pour vehicule automobile |
PT2345549E (pt) * | 2008-11-12 | 2013-11-13 | Nippon Steel & Sumitomo Metal Corp | Pré-forma de braço e método de fabricar a mesma |
US8490989B2 (en) * | 2009-10-26 | 2013-07-23 | Hendrickson Usa, L.L.C. | Heavy-duty axle-to-beam connection |
FI123362B (fi) * | 2011-06-06 | 2013-03-15 | Efes Tex Ag | Menetelmä putkien T-haaraliitosten tekemiseksi |
US10094496B2 (en) * | 2013-03-12 | 2018-10-09 | Richard Humm | Welded fencing system with prefabricated connectors |
JP2016124400A (ja) * | 2014-12-26 | 2016-07-11 | 株式会社 協栄製作所 | 車両用サスペンションアーム |
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- 2013-06-19 JP JP2013128947A patent/JP5913210B2/ja active Active
- 2013-10-31 US US14/900,461 patent/US9855808B2/en not_active Expired - Fee Related
- 2013-10-31 WO PCT/JP2013/079637 patent/WO2014203420A1/ja active Application Filing
- 2013-10-31 CN CN201380077655.2A patent/CN105324258A/zh active Pending
- 2013-10-31 EP EP13887304.7A patent/EP3012132A4/en not_active Withdrawn
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JPH09511968A (ja) * | 1994-04-14 | 1997-12-02 | エヌエイアイ・ニュウエイ、インコーポレイテッド | トレーリングアームサスペンション |
JPH09193634A (ja) * | 1996-01-22 | 1997-07-29 | Daihatsu Motor Co Ltd | 自動車用サスペンションアーム |
JP2002337525A (ja) * | 2001-05-17 | 2002-11-27 | F Tech:Kk | 車両用サスペンションアーム |
JP2010274823A (ja) | 2009-05-29 | 2010-12-09 | Toyota Motor Corp | サスペンションアーム本体とブッシュ用外筒との接合構造 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016113793A1 (ja) * | 2015-01-13 | 2016-07-21 | 株式会社ブリヂストン | 防振装置 |
WO2016196494A1 (en) * | 2015-06-01 | 2016-12-08 | Hendrickson Usa, L.L.C. | Torque rod for vehicle suspension |
CN107683217A (zh) * | 2015-06-01 | 2018-02-09 | 瀚瑞森美国有限责任公司 | 用于车辆悬架的扭矩杆 |
CN107020906A (zh) * | 2016-02-01 | 2017-08-08 | 福特全球技术公司 | 制造悬挂控制臂的方法 |
CN107020906B (zh) * | 2016-02-01 | 2022-01-25 | 福特全球技术公司 | 制造悬挂控制臂的方法 |
Also Published As
Publication number | Publication date |
---|---|
EP3012132A1 (en) | 2016-04-27 |
JP5913210B2 (ja) | 2016-04-27 |
JP2015003567A (ja) | 2015-01-08 |
US20160152105A1 (en) | 2016-06-02 |
CN105324258A (zh) | 2016-02-10 |
US9855808B2 (en) | 2018-01-02 |
EP3012132A4 (en) | 2017-02-22 |
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