WO2014077326A1 - ストラット形懸架装置と、懸架装置用圧縮コイルばね - Google Patents

ストラット形懸架装置と、懸架装置用圧縮コイルばね Download PDF

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Publication number
WO2014077326A1
WO2014077326A1 PCT/JP2013/080810 JP2013080810W WO2014077326A1 WO 2014077326 A1 WO2014077326 A1 WO 2014077326A1 JP 2013080810 W JP2013080810 W JP 2013080810W WO 2014077326 A1 WO2014077326 A1 WO 2014077326A1
Authority
WO
WIPO (PCT)
Prior art keywords
diameter
strand
compression coil
coil spring
spring
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2013/080810
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
健二 山本屋
英人 榎本
高橋　研
佐藤　俊明
充弘 杉山
義夫 小林
太一 稲毛
友丈 加藤
昭彦 西川
昌弘 梅澤
綾田　倫彦
卓 梶谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NHK Spring Co Ltd
Original Assignee
NHK Spring Co Ltd
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
Priority to CN201380059997.1A priority Critical patent/CN104936804B/zh
Priority to CA2890871A priority patent/CA2890871C/en
Priority to IN4099DEN2015 priority patent/IN2015DN04099A/en
Priority to MX2015006083A priority patent/MX358417B/es
Priority to KR1020157012767A priority patent/KR101937520B1/ko
Priority to PL13855147T priority patent/PL2921323T3/pl
Priority to RU2015118133A priority patent/RU2615644C2/ru
Priority to ES13855147T priority patent/ES2732577T3/es
Application filed by NHK Spring Co Ltd filed Critical NHK Spring Co Ltd
Priority to EP13855147.8A priority patent/EP2921323B1/en
Priority to AU2013345843A priority patent/AU2013345843B2/en
Priority to KR1020177001885A priority patent/KR20170010911A/ko
Publication of WO2014077326A1 publication Critical patent/WO2014077326A1/ja
Priority to US14/702,919 priority patent/US9713946B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/042—Wound springs characterised by the cross-section of the wire
    • F16F1/043—Wound springs characterised by the cross-section of the wire the cross-section varying with the wire length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/14—Independent suspensions with lateral arms
    • B60G2200/142—Independent suspensions with lateral arms with a single lateral arm, e.g. MacPherson type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/12—Wound spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/30—Spring/Damper and/or actuator Units
    • B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
    • B60G2202/312—The spring being a wound spring
    • 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
    • B60G2206/40—Constructional features of dampers and/or springs
    • B60G2206/42—Springs
    • 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
    • B60G2206/40—Constructional features of dampers and/or springs
    • B60G2206/42—Springs
    • B60G2206/426—Coil springs having a particular shape, e.g. curved axis, pig-tail end coils

Definitions

  • the present invention relates to a strut type suspension device used in a vehicle such as an automobile, and a compression coil spring for the suspension device used in the suspension device.
  • Patent Document 1 or Patent Document 2 discloses a strut-type suspension device used for a vehicle such as an automobile. These suspension devices include a compression coil spring, a lower spring seat, an upper spring seat, and a shock absorber.
  • the compression coil spring functions as a suspension spring.
  • the lower spring seat is disposed on the lower end side of the compression coil spring.
  • the upper spring seat is disposed on the upper end side of the compression coil spring.
  • the shock absorber passes through the inside of the compression coil spring.
  • the shock absorber includes a cylinder that contains a fluid, a rod that is inserted into the cylinder so as to be extendable and contractable, a damping force generation mechanism, and the like.
  • the damping force generation mechanism has a function of damping the expansion / contraction motion of the rod.
  • Patent Document 1 In order to reduce the sliding resistance generated between the cylinder and rod of the shock absorber, in Patent Document 1, the position of the coil central axis of the compression coil spring is offset to the outside of the vehicle with respect to the shock absorber. In the shock absorber of Patent Document 2, the pitch angle of the compression coil spring is changed according to the number of turns of the wire (wire).
  • JP 2000-103216 A Japanese Patent Laid-Open No. 2004-150637 JP 59-219534 A
  • the present inventors have conducted intensive research to equalize the stress of the compression coil spring used in the strut suspension system. As a result, if the coil center axis of the compression coil spring is offset to the outside of the vehicle with respect to the shock absorber, reducing the wire diameter inside the vehicle will cause the stress distribution of the strands to approach equalization, rather than the stress distribution. It was found that the variation of
  • an object of the present invention is to provide a strut type suspension device capable of bringing the stress distribution of the compression coil spring close to equalization, and a compression coil spring for the suspension device.
  • the strut suspension according to the present invention includes a lower spring seat, an upper spring seat, and a strand formed in a spiral shape between the lower spring seat and the upper spring seat.
  • a compression coil spring disposed in a compressed state; and a shock absorber having a cylinder and a rod inserted into the cylinder and passing through the inside of the compression coil spring, and the element wire of the compression coil spring includes: A large-diameter strand portion disposed on the vehicle inner side than the shock absorber and having a strand diameter larger than the average strand diameter of the strand; and a strand portion disposed on the vehicle outer side than the shock absorber and the strand diameter is the large diameter A small-diameter strand portion smaller than the strand portion, and a wire diameter changing portion in which the strand diameter continuously changes between the large-diameter strand portion and the small-diameter strand portion.
  • the compression coil spring is disposed at a position offset to the vehicle outer side with respect to the shock absorber, and the large-diameter element wire portion is provided on a portion of the compression coil spring on the vehicle inner side (the counter-offset side).
  • the small-diameter element wire portion is provided on the vehicle outer side (offset side) of the compression coil spring.
  • the lower spring seat includes an inner spring receiving portion that supports an inner winding portion of the lower end side winding portion of the compression coil spring, and an outer seat of the lower end side winding portion.
  • An outer spring receiving portion that supports the winding portion, and a distance from the outer spring receiving portion to the upper spring seat may be smaller than a distance from the inner spring receiving portion to the upper spring seat. .
  • the compression amount of the outer portion of the compression coil spring is larger than the compression amount of the inner portion of the vehicle. May be larger.
  • a compression coil spring for a suspension device has a strand formed in a spiral shape and is arranged in a compressed state between a lower spring seat and an upper spring seat of a strut suspension device.
  • a compression coil spring disposed on the vehicle inner side of the shock absorber and having a strand diameter larger than the average strand diameter of the strand, and disposed on the vehicle exterior of the shock absorber; and A wire diameter in which the wire diameter continuously changes between the small-diameter strand portion having a strand diameter smaller than the strand diameter of the large-diameter strand portion, and the large-diameter strand portion and the small-diameter strand portion. And a change part.
  • the stress distribution of the compression coil spring used in the strut type suspension device can be made close to equalization, so that the compression coil spring for the strut type suspension device can be reduced in weight, and thus contributes to the weight reduction of the vehicle. can do.
  • FIG. 1 is a perspective view schematically showing a part of a vehicle provided with a strut suspension device according to one embodiment of the present invention.
  • FIG. 2 is a longitudinal sectional view of the strut suspension shown in FIG.
  • FIG. 3 is a perspective view showing an example of a compression coil spring used in the strut-type suspension device.
  • FIG. 4 is a diagram showing the relationship between the distance from the lower end of the strand of the compression coil spring shown in FIG. 3 and the strand diameter.
  • FIG. 1 shows a strut-type suspension device 11 used on the front side of a vehicle 10.
  • FIG. 2 is a cross-sectional view of the strut-type suspension device 11.
  • the strut suspension device 11 includes a compression coil spring 12, a lower spring seat 13, an upper spring seat 14, a shock absorber (strut) 15, and a mount insulator 16.
  • the compression coil spring 12 has a coil center axis X1 extending in the vertical direction.
  • the lower spring seat 13 is disposed on the lower end side of the compression coil spring 12.
  • the upper spring seat 14 is disposed on the upper end side of the compression coil spring 12.
  • the shock absorber (strut) 15 passes through the inside of the compression coil spring 12.
  • the mount insulator 16 is provided at the upper end of the suspension device 11.
  • the compression coil spring 12 is disposed in a compressed state between the lower spring seat 13 and the upper spring seat 14.
  • the shock absorber 15 includes a cylinder 20, a rod 21, a damping force generation mechanism provided inside the cylinder 20, and a cover member 22.
  • a fluid such as oil is accommodated in the cylinder 20.
  • the rod 21 is inserted into the cylinder 20.
  • the cover member 22 covers the sliding portion of the rod 21.
  • the rod 21 can expand and contract with respect to the cylinder 20 in the direction of the axis X2 of the shock absorber 15.
  • the damping force generation mechanism functions to cause resistance to the movement of the rod 21.
  • a bracket 26 is provided at the lower end of the cylinder 20.
  • a knuckle member 25 (shown in FIG. 1) is attached to the bracket 26.
  • the lower part of the knuckle member 25 is rotatably supported by the lower arm 27 by a ball joint 28.
  • the lower arm 27 is attached to the cross member 29 so as to be rotatable in the vertical direction.
  • the cross member 29 extends in the width direction of the vehicle 10.
  • X 0 in FIG. 2 indicates a vertical line of gravity.
  • X2 represents the axis of the shock absorber 15.
  • the strut-type suspension apparatus 11, with respect to the vertical line X 0 of gravity, are attached to the vehicle body 30 in a posture tilted inward the axis X2 of the shock absorber 15 by an angle theta. For this reason, the upper part of the shock absorber 15 is located inside the vehicle from the lower part.
  • the mount insulator 16 includes an anti-vibration rubber 31 and a support member 32 that is fixed to the vehicle body 30.
  • the suspension device 11 is swingably attached to a suspension attachment portion 34 (shown in FIG. 2) by a fixing member 33 such as a bolt.
  • the fixing member 33 is provided on the support member 32.
  • the suspension attachment portion 34 is a part of the vehicle body 30.
  • the suspension device 11 is supported by a bearing 35 so as to be rotatable about the axis X2.
  • the coil center axis X1 of the compression coil spring 12 is disposed at a position offset with respect to the axis X2 of the shock absorber 15 on the vehicle outer side (direction indicated by arrow Z in FIG. 2). Thereby, the frictional resistance of the sliding part of the cylinder 20 and the rod 21 can be made small.
  • the side opposite to the arrow Z is the counter-offset side.
  • the lower spring seat 13 has an inner spring receiving portion 13a and an outer spring receiving portion 13b.
  • the inner spring receiving portion 13 a is located inside the vehicle with respect to the width direction of the vehicle 10.
  • the outer spring receiving portion 13b is located outside the vehicle.
  • the height of the inner spring receiving portion 13a and the height of the outer spring receiving portion 13b are different from each other.
  • a distance L2 from the outer spring receiving portion 13b to the upper spring seat 14 is smaller than a distance L1 from the inner spring receiving portion 13a to the upper spring seat 14.
  • FIG. 3 shows a state in which the load in the direction along the coil central axis X1 is not applied to the compression coil spring 12 (so-called free state).
  • the length of the compression coil spring 12 under the free state is referred to as a free length.
  • the compression coil spring 12 is attached to the vehicle body 30 in an assembly state compressed between the lower spring seat 13 and the upper spring seat 14.
  • the length of the compression coil spring 12 in the assembled state is referred to as an assembly height.
  • the compression amount from the free length of the vehicle outer portion 12b of the compression coil spring 12 to the assembly height is larger than the compression amount from the free length of the vehicle inner portion 12a to the assembly height.
  • the compression coil spring 12 shown in FIG. 3 has a strand (wire) 40 formed in a spiral shape.
  • the strand 40 is made of spring steel and has a circular cross section.
  • An example of the compression coil spring 12 is a cylindrical coil spring.
  • various forms of compression coil springs such as a barrel coil spring, a drum coil spring, a taper coil spring, an unequal pitch coil spring, or a coil spring that has been previously bent in a free state May be used.
  • the type of spring steel that is the material of the wire 40 is not particularly limited, and examples thereof include SAE 9254 that conforms to “Society of Automotive Engineers” in the United States.
  • the chemical components (mass%) of SAE 9254 are C: 0.51 to 0.59, Si: 1.20 to 1.60, Mn: 0.60 to 0.80, Cr: 0.60 to 0.80, S: maximum 0.040, P: maximum 0.030, balance Fe.
  • SUP7 conforming to JIS (Japanese Industrial Standard) and other steel types may be used.
  • Examples of chemical components (mass%) when high corrosion resistance spring steel is used for the material of the element wire 40 are C: 0.41, Si: 1.73, Mn: 0.17, Ni: 0.53, Cr: 1.05, V: 0.163, Ti: 0.056, Cu: 0.21, and the balance Fe.
  • the compression coil spring 12 is arranged in a compressed state between the lower spring seat 13 and the upper spring seat 14.
  • the compression coil spring 12 elastically supports a load applied in the vertical direction of the vehicle 10.
  • the strand 40 of this embodiment has a large-diameter strand portion 40a and a small-diameter strand portion 40b that are alternately formed for each winding of the strand 40.
  • the large-diameter element wire portion 40a is disposed on the vehicle inner portion 12a of the compression coil spring 12 (on the side opposite to the compression coil spring) in the vehicle width direction.
  • the strand diameter d1 of the large-diameter strand portion 40a is larger than the average strand diameter of the effective portion of the strand 40.
  • the small-diameter strand 40b is disposed on the vehicle outer portion 12b of the compression coil spring 12 (offset side of the compression coil spring) in the vehicle width direction.
  • the strand diameter d2 of the small-diameter strand 40b is smaller than the strand diameter d1 of the large-diameter strand 40a.
  • the strand diameter gradually decreases between the strand diameter d1 of the large-diameter strand portion 40a and the strand diameter d2 of the small-diameter strand portion 40b.
  • a wire diameter changing portion 40c that changes continuously (for example, in a tapered shape) is formed.
  • the strand diameters of the lower end side end winding portion 40d and the upper end side end winding portion 40e of the compression coil spring 12 are smaller than the effective portion strand diameter, and are minimum.
  • the lower end side end winding portion 40 d is in contact with the upper surface of the lower spring seat 13.
  • the lower spring seat 13 is formed with an inner spring receiving portion 13a and an outer spring receiving portion 13b. As described above, the inner spring receiving portion 13a and the outer spring receiving portion 13b have different heights.
  • the inner spring receiving portion 13a supports the end winding portion on the vehicle inner side of the end winding portion 40d on the lower end side.
  • the outer spring receiving portion 13b supports the end winding portion on the vehicle outer side of the end winding portion 40d on the lower end side.
  • the upper end side end winding portion 40 e is in contact with the lower surface of the upper spring seat 14.
  • FIG. 4 shows an example of the relationship between the distance from the lower end 40f (shown in FIG. 3) of the strand 40 and the strand diameter.
  • the wire diameter changes according to the number of turns from the lower end 40f. That is, in the effective portion of the strand 40, the large-diameter strand portion 40a in which the strand diameter has a maximum value on the vehicle inner side and the small-diameter strand portion in which the strand diameter has a minimum value on the vehicle exterior side every approximately one turn. 40b are alternately formed.
  • FIG. 4 shows an example of the relationship between the distance from the lower end 40f (shown in FIG. 3) of the strand 40 and the strand diameter.
  • the wire diameter changes according to the number of turns from the lower end 40f. That is, in the effective portion of the strand 40, the large-diameter strand portion 40a in which the strand diameter has a maximum value on the vehicle inner side and the small-diameter strand portion in which the strand diameter has
  • the maximum value of the large-diameter strand portion 40a is 11.2 to 11.5 mm
  • the minimum value of the small-diameter strand portion 40b is 9.6 to 9.8 mm
  • the average strand diameter of the effective portion is 10.5 mm.
  • the wire diameter changing portion 40c continuously changes between the maximum value of the wire diameter and the minimum value of the wire diameter every approximately one turn of the effective portion of the wire 40.
  • the strand diameters of the end turns 40d and 40e are each 9 mm and the minimum.
  • a two-dot chain line M in FIG. 4 represents a conventional coil spring having a constant wire diameter.
  • the diameter of the wire 40 continuously changes in the length direction.
  • the element wire 40 whose diameter changes in this way can be formed by, for example, machining such as cutting, reduction in diameter by a swaging machine (a kind of forging), or plastic processing such as pressing.
  • machining such as cutting
  • reduction in diameter by a swaging machine a kind of forging
  • plastic processing such as pressing.
  • cutting there is a problem that a boundary portion that causes stress concentration occurs in a portion where the wire diameter changes, or the metal flow of the metal structure is cut by cutting.
  • the problem of the cutting process can be avoided, and the portion where the wire diameter changes can be smoothly continued.
  • the large-diameter strand portion 40a, the small-diameter strand portion 40b, the wire-diameter changing portion 40c, and the end winding portions 40d and 40e are also obtained by a dieless processing apparatus that pulls material between the supply-side roller and the drawing-side roller. Can be formed.
  • the strand 40 processed by these processing means is formed into a spiral shape in a bending process (for example, hot coiling process). Further, after heat treatment such as tempering and shot peening, adjustment by setting or the like is performed as necessary, and coating and quality inspection are performed to complete the product.
  • the compression coil spring 12 is assembled to the shock absorber 15 in a state in which the compression coil spring 12 is compressed between the spring seats 13 and 14 and a preload is applied, and is further attached to the vehicle body 30.
  • a vertical load is applied to the strut suspension 11 provided in the vehicle 10.
  • the compression coil spring 12 is further compressed and bent between the lower spring seat 13 and the upper spring seat 14.
  • the shock absorber 15 expands and contracts in the direction of the axis X2 according to the amount of compression from the assembly height of the compression coil spring 12, and the distance between the lower spring seat 13 and the upper spring seat 14 according to the load. Changes.
  • the postures of the spring seats 13 and 14 are kept constant even if the compression amount of the compression coil spring 12 changes. For this reason, in the compression coil spring 12 assembled between the spring seats 13 and 14, the vehicle inner portion 12a and the vehicle outer portion 12b are respectively compressed with an equivalent stroke in accordance with the load.
  • the compression coil spring 12 of the present embodiment has a large-diameter element wire portion 40a in a vehicle inner portion 12a (on the opposite side of the compression coil spring 12), and a vehicle outer portion 12b (offset side of the compression coil spring 12). Has a small-diameter strand 40b.
  • the conventional compression coil spring has an element wire diameter of 11.0 mm, a total number of turns of 5.39, a spring constant of 33.3 N / mm, and a mass of 2.09 kg.
  • each element for example, a shock absorber, upper and lower spring seats, etc. constituting a strut suspension system, including a specific shape and size, number of turns, material (steel type), and spring constant of a compression coil spring.
  • the embodiment can be implemented with various changes in the manner, structure, arrangement, and the like.
  • SYMBOLS 10 ... Vehicle, 11 ... Strut type suspension device, 12 ... Compression coil spring for suspension devices, 12a ... Vehicle inner part, 12b ... Vehicle outer part, 13 ... Lower spring seat, 13a ... Inner spring receiving part, 13b DESCRIPTION OF SYMBOLS ... Outer spring receiving part, 14 ... Upper spring seat, 15 ... Shock absorber, 20 ... Cylinder, 21 ... Rod, 40 ... Elementary wire, 40a ... Large diameter element wire part, 40b ... Small diameter element wire part, 40c ... Wire diameter Change part, 40d ... end winding part on the lower end side, 40e ... end winding part on the upper end side.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Springs (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Damping Devices (AREA)
PCT/JP2013/080810 2012-11-16 2013-11-14 ストラット形懸架装置と、懸架装置用圧縮コイルばね Ceased WO2014077326A1 (ja)

Priority Applications (12)

Application Number Priority Date Filing Date Title
RU2015118133A RU2615644C2 (ru) 2012-11-16 2013-11-14 Подвеска типа стойки и спиральная пружина сжатия для подвески
IN4099DEN2015 IN2015DN04099A (cg-RX-API-DMAC7.html) 2012-11-16 2013-11-14
MX2015006083A MX358417B (es) 2012-11-16 2013-11-14 Suspensión tipo puntual y resorte espiral de compresión para suspensión.
KR1020157012767A KR101937520B1 (ko) 2012-11-16 2013-11-14 스트럿형 현가 장치와, 현가 장치용 압축 코일 스프링
PL13855147T PL2921323T3 (pl) 2012-11-16 2013-11-14 Zawieszenie typu kolumnowego i ściskowa sprężyna zwojowa dla zawieszenia
ES13855147T ES2732577T3 (es) 2012-11-16 2013-11-14 Suspensión de tipo puntal y muelle helicoidal de compresión para suspensión
EP13855147.8A EP2921323B1 (en) 2012-11-16 2013-11-14 Strut type suspension and compression coil spring for suspension
CN201380059997.1A CN104936804B (zh) 2012-11-16 2013-11-14 撑杆式悬架装置和悬架装置用压缩螺旋弹簧
CA2890871A CA2890871C (en) 2012-11-16 2013-11-14 Strut-type suspension and compression coil spring for suspension
AU2013345843A AU2013345843B2 (en) 2012-11-16 2013-11-14 Strut-type suspension and compression coil spring for suspension
KR1020177001885A KR20170010911A (ko) 2012-11-16 2013-11-14 스트럿형 현가 장치와, 현가 장치용 압축 코일 스프링
US14/702,919 US9713946B2 (en) 2012-11-16 2015-05-04 Strut-type suspension and compression coil spring for suspension

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-252519 2012-11-16
JP2012252519A JP5970349B2 (ja) 2012-11-16 2012-11-16 ストラット形懸架装置と、懸架装置用圧縮コイルばね

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/702,919 Continuation US9713946B2 (en) 2012-11-16 2015-05-04 Strut-type suspension and compression coil spring for suspension

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WO2014077326A1 true WO2014077326A1 (ja) 2014-05-22

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PCT/JP2013/080810 Ceased WO2014077326A1 (ja) 2012-11-16 2013-11-14 ストラット形懸架装置と、懸架装置用圧縮コイルばね

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US (1) US9713946B2 (cg-RX-API-DMAC7.html)
EP (1) EP2921323B1 (cg-RX-API-DMAC7.html)
JP (1) JP5970349B2 (cg-RX-API-DMAC7.html)
KR (2) KR20170010911A (cg-RX-API-DMAC7.html)
CN (1) CN104936804B (cg-RX-API-DMAC7.html)
AU (1) AU2013345843B2 (cg-RX-API-DMAC7.html)
CA (1) CA2890871C (cg-RX-API-DMAC7.html)
ES (1) ES2732577T3 (cg-RX-API-DMAC7.html)
IN (1) IN2015DN04099A (cg-RX-API-DMAC7.html)
MX (1) MX358417B (cg-RX-API-DMAC7.html)
PL (1) PL2921323T3 (cg-RX-API-DMAC7.html)
RU (1) RU2615644C2 (cg-RX-API-DMAC7.html)
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