WO2011118390A1 - Dispositif de suspension - Google Patents

Dispositif de suspension Download PDF

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Publication number
WO2011118390A1
WO2011118390A1 PCT/JP2011/055506 JP2011055506W WO2011118390A1 WO 2011118390 A1 WO2011118390 A1 WO 2011118390A1 JP 2011055506 W JP2011055506 W JP 2011055506W WO 2011118390 A1 WO2011118390 A1 WO 2011118390A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
coil spring
sheet rubber
slit
open end
Prior art date
Application number
PCT/JP2011/055506
Other languages
English (en)
Japanese (ja)
Inventor
裕二 山崎
佑哉 内山
Original Assignee
本田技研工業株式会社
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 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to CN201180007197.6A priority Critical patent/CN102725154B/zh
Priority to JP2012506922A priority patent/JP5752112B2/ja
Publication of WO2011118390A1 publication Critical patent/WO2011118390A1/fr

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    • 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
    • B60G11/15—Coil springs resisting deflection by winding up
    • 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
    • B60G11/16—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • 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
    • B60G15/063—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 characterised by the mounting of the spring on 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
    • F16F1/12—Attachments or mountings
    • F16F1/126—Attachments or mountings comprising an element between the end coil of the spring and the support proper, e.g. an elastomeric annulus
    • 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
    • F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
    • F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
    • F16F3/12—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction the steel spring being in contact with the rubber 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
    • B60G2202/10—Type of spring
    • B60G2202/12—Wound spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/124—Mounting of coil springs
    • B60G2204/1242—Mounting of coil springs on a damper, e.g. MacPerson strut
    • B60G2204/12422—Mounting of coil springs on a damper, e.g. MacPerson strut anchoring the end coils on the spring support plate
    • 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
    • B60G2206/73—Rubber; Elastomers

Definitions

  • the coil spring is wound in the vertical direction of the vehicle body when mounted on the vehicle. For this reason, rainwater and mud water falling on the coil spring may flow downward along the coil spring and may intrude into the sheet rubber from the opening of the sheet rubber. Water entering the sheet rubber from the opening may adhere to the surface of the coil spring in the sheet rubber. Such rubbing of the surface of the coil spring by foreign matter and adhesion of water to the surface of the coil spring in the sheet rubber are disadvantageous in enhancing the durability of the coil spring.
  • a coil spring disposed between the wheel and the vehicle body to reduce the vibration of the vehicle body, and a sheet rubber which covers an end turn of the lower end of the coil spring. And a spring seat for supporting the end turn via the sheet rubber, wherein the sheet rubber is at the open end where the end turn is to be covered, the end turn being more than the other covering portion.
  • a suspension device characterized by having a close contact portion which can be in close contact with the outer circumferential surface of
  • the sheet rubber is made of a tubular elastic member, and the elastic member is a slit extending continuously from the open end toward the other end, and the slit along the slit. And a lip portion integrally formed on the inner peripheral surface of the tubular elastic member, wherein the lip portion is formed in a thick portion with a large thickness in the vicinity of the open end and the open end, and the close portion Is characterized by being constituted by the thick portion.
  • the sheet rubber further includes a tightening portion capable of tightening the close portion by tightening the sheet rubber in the circumferential direction, and the tightening portion is the portion of the close portion. It is characterized by being located in the vicinity.
  • the sheet rubber further includes a lid capable of closing the slit across the slit in the circumferential direction of the elastic member, and the lid is the elastic member.
  • a lid capable of closing the slit across the slit in the circumferential direction of the elastic member, and the lid is the elastic member. Is provided so as to be openable and closable on the outer peripheral surface of the cover and in the vicinity of the contact part, and the part located in the vicinity of the contact part in the slit is closed from the open state to tighten the contact part. It is characterized by being possible.
  • the sheet rubber for covering the end turn of the lower end of the coil spring is in close contact with the outer peripheral surface of the end turn at the open end starting to cover the end turn than the other covering portions.
  • the close portion By tightly closing the open end of the sheet rubber by the close portion, the sealability of the open end is enhanced. Therefore, even if foreign matter such as water, muddy water, dust and the like that has fallen on the suspension device mounted on the vehicle travels along the winding of the coil spring and reaches the opening end of the sheet rubber, the coil from the opening end Water and foreign matter can be prevented from entering between the spring and the seat rubber. Thereby, the durability of the coil spring can be further improved.
  • the slit extends continuously from the open end of the sheet rubber made of the tubular elastic member toward the other end, when covering the end wrap with the sheet rubber, The sheet rubber can be spread over and wound on a sheet winding. For this reason, the coating operation is easy. Furthermore, since the lip portion is integrally formed on the inner peripheral surface of the elastic member along the slit, the sealing performance of the slit can be improved. Furthermore, the sealing performance of the open end can be improved by increasing the thickness of the lip portion to be a close portion in the vicinity of the open end and the open end. For this reason, foreign materials such as rain water and mud water transmitted through the coil spring can be prevented from entering between the coil spring and the sheet rubber, so that the durability of the coil spring can be improved. it can. As described above, it is possible to achieve both the ease of the covering operation when covering the coil spring with the sheet rubber and the improvement of the sealing performance of the sheet rubber.
  • the coil spring when the coil spring is coated with the sheet rubber, it becomes easy to coat by loosening the tightening portion. After coating, the tight portion can be tightened by tightening the sheet rubber in the circumferential direction by the tightening portion. As a result, the sealability of the open end can be secured, and the entry of water or foreign matter from the open end into the space between the coil spring and the sheet rubber can be prevented. Thereby, the durability of the coil spring can be improved. Thus, the ease of coating operation and the sealing performance can be improved.
  • the covering operation is easy by opening the slit.
  • the tight portion can be tightened by closing the portion of the slit located in the vicinity of the tight portion from the open state by the lid.
  • the sealability of the open end can be secured.
  • the ease of coating operation and the sealing performance can be improved.
  • FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 3
  • FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. 3
  • FIG. 6 shows the state which the slit of the sheet
  • FIG. 7 shows the state which the slit of the sheet
  • FIG. 9 is a cross-sectional view taken along line 9-9 of FIG. 3;
  • FIG. 6 is a perspective view of a seat rubber of a suspension device according to a second embodiment of the present invention.
  • 11 is a cross-sectional view taken along line 11-11 of FIG. 12 is a cross-sectional view taken along line 12-12 of FIG. 13 is a cross-sectional view taken along line 13-13 of FIG.
  • FIG. 7 is a perspective view of a seat rubber of a suspension device according to a third embodiment of the present invention.
  • FIG. 15 is a cross-sectional view taken along line 15-15 of FIG. 14;
  • FIG. 16 is a cross-sectional view taken along line 16-16 of FIG. 14;
  • FIG. 17 is a cross-sectional view taken along line 17-17 of FIG.
  • the suspension device 20 includes a substantially A-shaped lower arm 22 extending from the vehicle body 11 toward the knuckle 21, a damper unit 15 provided between the vehicle body 11 and the knuckle 21, and a support portion of the damper unit 15.
  • An anti-roll bar link 24 connected to the anti-roll bar 23 via the anti-roll bar 23 to suppress the roll movement of the vehicle body 11 is a main component.
  • the knuckle 21 is provided with a wheel (not shown) of the wheel 14, a tie rod 27 of the steering device 26, and a brake disc 28.
  • the tie rod 27 is covered with a boot 31 for preventing adhesion of mud and rain water.
  • a brake caliper 29 for braking the brake disc 28 is provided on an outer peripheral portion of the brake disc 28.
  • the damper unit 15 (shock absorber 15) mainly includes a coil spring 16 for reducing the vibration of the vehicle body 11 and a damper 17 for reducing the movement of the coil spring 16. It is a hydraulic shock absorber that is an important component.
  • the coil spring 16 is disposed between the vehicle body 11 and the wheel 14 and extends and contracts so as to absorb the impact received by the vehicle from the road surface by its own resilient force.
  • the damper 17 mitigates the expansion and contraction vibration of the coil spring 16 by the damping force generated at the time of the up and down stroke of the piston (not shown) accompanying the expansion and contraction of the coil spring 16.
  • the damper 17 is provided at an outer tube 71, a piston rod 72 inserted in a cylinder (not shown) contained in the outer tube 71, and a lower end of the outer tube 71. It consists of a suspension side mounting bracket 73 and a vehicle body side mounting bracket 74 provided on the upper end of the piston rod 72.
  • a lower spring seat 81 inclined along the spiral shape of the coil spring 16 is provided on the outer peripheral surface of the longitudinal middle portion of the outer tube 71.
  • a support portion 83 for supporting the anti-roll bar 23 is formed on the lower spring seat 81.
  • the coil spring 16 extends in the vertical direction of the vehicle, and has a winding portion 16d (effective winding portion 16d) effective for substantially acting as a spring, and a lower end winding connected to the lower end of the effective winding portion 16d. 16a and an upper end winding 16c connected to the upper end of the effective winding portion 16d.
  • the end turns 16 a and 16 c are portions that apparently do not act as springs at the end of the coil spring 16.
  • the end turn 16 a at the lower end of the coil spring 16 is supported by the lower spring seat 81 via the sheet rubber 100.
  • the end turn 16c at the upper end of the coil spring 16 is supported by the upper spring seat 82 via a sheet rubber 82a.
  • a bump rubber 86 is attached to a bump rubber attachment body 85 fixed to the lower surface of the lower mount base 76b.
  • the bump rubber 86 is a member that regulates the stroke at the time of the maximum compression by the piston rod 72 contacting the bump stopper cap 87 at the upper end surface of the outer tube 71 at the time of the maximum compression.
  • the bump rubber 86 extends from the lower surface of the bump rubber attachment body 85 toward the bump stopper cap 87 by a predetermined length, and is firmly fitted to the piston rod 72.
  • the upper half of the outer tube 71 and the piston rod 72 are covered by a dust cover 88.
  • the upper end of the dust cover 88 is integrally formed on the lower end portion of the sheet rubber 82a.
  • the lower end of the dust cover 88 is locked to a cover receiver 89 provided on the outer tube 71.
  • the sheet rubber 100 is composed of a tubular elastic member 101 and a flange portion 104 integrally formed on the elastic member 101.
  • the elastic member 101 is constituted by a single elastic (flexible) tube.
  • the elastic member 101 will be referred to as “tube 101” or “tube main body 101” as appropriate.
  • the tube 101 is generally curved in a substantially C-shape.
  • the center of curvature CL of the curved tube 101 substantially coincides with the center of the coil spring 16.
  • one end 102 in the longitudinal direction and the other end 103 are formed in different shapes. That is, the shapes of the both ends 102 and 103 of the tube 101 itself are different from each other.
  • One end 102 of the tube 101 is an open end which is open to allow insertion of the end of the lower end coil 16a into the tube 101.
  • the other end 103 of the tube 101 is a closed end that is closed so that the end of the lower end winding 16a inserted into the tube 101 can abut.
  • one end 102 will be appropriately referred to as “open end 102”
  • the other end 103 will be appropriately referred to as “closed end 103”.
  • the tube 101 has a close contact portion 105, a ring groove 106, a slit 107, a pair of concave portions 108, 108, and a pair of lip portions 109, 109.
  • the close portion 105 is an annular portion located adjacent to the open end 102 and bulging radially inward from the inner circumferential surface of the tube 101.
  • the close portion 105 is formed in, for example, a tapered shape that gradually diverges from the open end 102 inward in the longitudinal direction of the tube 101. For this reason, the inner diameter of the close portion 105 is minimum at the position of the open end 102.
  • the inner diameter at the open end 102 of the close contact portion 105 is set to be smaller than the inner diameter of the other covering portion 101 a (hole 101 a) of the tube 101. Therefore, the inner circumferential surface 105 a of the close contact portion 105 can be closer to the coil spring 16 (see FIG. 2) than the other covering portion 101 a of the tube 101.
  • the slit 107 is located on the inner surface 101 c of the tube 101 that is curved with respect to the bending center CL, and penetrates the inside and the outside of the tube 101.
  • the slit 107 is elongated in the bending direction of the tube 101 from the vicinity of the open end 102 of the tube 101 to the vicinity of the closed end 103. Since the tube 101 is curved, the frictional resistance when inserting the coil spring 16 is large.
  • the tube 101 has a slit 107 for facilitating the insertion of the coil spring 16. By manually expanding the slit 107, the hole 101a of the tube 101 is expanded, so that the coil spring 16 can be easily inserted into the tube 101.
  • the pair of lip portions 109 and 109 are portions of a semi-circular cross section which bulged into the hole from the inner surface of the hole 101 a of the tube 101, and along the longitudinal edge of the slit 107, the bending direction of the tube 101 It is formed in an elongated strip shape.
  • the pair of lip portions 109, 109 are located on both sides of the slit 107. Such lip portions 109, 109 can be resiliently pressed against the coil spring 16 fitted in the tube 101.
  • the sheet rubber 100 is attached to the end turn 16a at the lower end of the coil spring 16 by the attachment method shown in FIGS. 7 and 8.
  • the slit 107 is expanded in the directions of arrows a1 and a1.
  • the hole 101a (the other covering portion 101a) of the tube 101 is expanded.
  • the tube 101 is fitted into the end turn 16a from the open end 102 side (see FIG. 4) while expanding the hole 101a in this manner.
  • the clearances S1 and S1 are between the outer peripheral surface 16b of the end turn 16a and the inner peripheral surface 101b (corresponding to the inner peripheral surface of the sheet rubber 100) of the "other coated portion 101a" of the tube 101. It has occurred.
  • the lip portions 109, 109 are not crushed by the end turn 16a at the lower end, and are in a raised state. Since the inner circumferential surface 101b is not in close contact with the outer circumferential surface 16b of the end turn 16a, it is easy to attach the sheet rubber 100 to the end turn 16a.
  • the tube 101 After the sheet rubber 100 is attached to the coil spring 16, the force for expanding the slit 107 is released. As a result, the tube 101 tries to restore the slit 107 to its original shape by the self-restoring force. That is, the tube 101 tries to return to the original shape. For this reason, as shown in FIG. 8, the inner peripheral surface 101b of "the other coated portion 101a" is in close contact with the outer peripheral surface 16b of the end turn 16a in the directions of arrows a2 and a2. The lip portions 109, 109 are crushed by the end turn 16a. Therefore, since the inner peripheral surface 101b is in close contact with the outer peripheral surface 16b of the end turn 16a, the adhesion is increased.
  • the pair of lip portions 109 and 109 can be appropriately provided so as to surround the periphery of the slit 107.
  • Example 1 As is apparent from the above description, in Example 1, as shown in FIGS. 1 to 7, the sheet rubber 100 for covering the end turn 16a at the lower end of the coil spring 16 covers the end turn 16a.
  • the open end 102 which starts to move, there is a close portion 105 which can be in closer contact with the outer peripheral surface 16b of the end turn 16a than the other covering portion 101a.
  • the close portion 105 By tightly closing the open end 102 of the sheet rubber 100 by the close portion 105, the sealability of the open end 102 is enhanced. Therefore, foreign matter such as water, muddy water, dust and the like falling on the suspension device 20 mounted on the vehicle travels along the winding 16 d (effective winding portion 16 d) of the coil spring 16 to the open end 102 of the sheet rubber 100. Even if it reaches, it is possible to prevent the entry of water or foreign matter from the open end 102 into the space between the end turn 16a of the coil spring 16 and the sheet rubber 100. Thereby, the durability of the coil spring 16 can be further
  • the seat rubber 120 of the suspension device according to the second embodiment will be described based on FIGS. 10 to 13.
  • the suspension apparatus of the second embodiment is substantially the same as the suspension apparatus of the first embodiment except that the sheet rubber 100 of the first embodiment shown in FIGS. 1 to 9 is changed to the sheet rubber 120 shown in FIGS.
  • the configuration is the same as that of the suspension device 20, and the description is omitted.
  • the sheet rubber 120 of the second embodiment is constituted by a tubular elastic member 121.
  • the elastic member 121 is constituted by a single elastic (flexible) tube.
  • the elastic member 121 will be referred to as "tube 121" or “tube main body 121” as appropriate.
  • the basic configuration of the tube 121 is substantially the same as that of the tube 101 of the first embodiment shown in FIG. 4, and the whole is curved in a substantially C shape.
  • One end 122 of the tube 121 itself which is generally curved in a substantially C-shape, is open to allow insertion of the end of the lower end coil 16a (see FIG. 2) into the tube 101, It is an open end.
  • the other end 123 (the end 123 opposite to the one end 122) of the tube 121 is a closed end which allows the end of the end turn 16a inserted in the tube 121 to abut. It is.
  • one end 122 is appropriately referred to as “open end 122”, and the other end 123 is appropriately referred to as “closed end 123”.
  • the seat rubber 120 is fitted to the end turn 16a to prevent interference between the windings of the coil spring 16 (see FIG. 2). In addition, it serves to prevent contact between the lower end coil 16a and the spring seat 81 (see FIG. 2). As described above, it is possible to prevent the generation of abnormal noise due to the contact between the windings of the coil spring 16 and the contact of the end turn 16a of the lower end with the spring seat 81.
  • the tube 121 has a pair of close portions 125, 125, a slit 127, and a pair of lip portions 129, 129.
  • the slit 127 is located on the inner surface 121 c of the tube 121 which is curved with reference to the bending center CL, and penetrates the inside and the outside of the tube 121.
  • the slit 127 is elongated in the bending direction of the tube 121 from the open end 122 of the tube 121 to the front of the closed end 123. Since the tube 121 is curved, the frictional resistance when inserting the coil spring 16 (see FIG. 2) into the tube 121 is large.
  • the tube 121 has a slit 127 for facilitating the insertion of the coil spring 16. By manually expanding the slit 127, the hole 121a of the tube 121 is expanded, so that the coil spring 16 can be easily inserted into the tube 121. Since the slit 127 reaches the open end 122 of the tube 121, the open end 122 is formed in a substantially C shape.
  • the pair of lip portions 129, 129 is a portion that bulges from the outer peripheral surface 121 d of the tube 121 into the hole 121 a.
  • the amount of expansion of the pair of lip portions 129, 129, that is, the thickness is larger than the thickness t0 of the tube 121.
  • the pair of lip portions 129, 129 are located on both sides of the slit 127, and are formed in a strip shape elongated in the bending direction of the tube 121 along the longitudinal edge of the slit 127.
  • Such lip portions 129, 129 can be resiliently pressed against the coil spring 16 fitted in the tube 121.
  • the thickness of the lip portions 129 and 129 that is, the opening of the slit 127 at the open end 122 of the tube 121 and the first portion located in the vicinity thereof in the section A1.
  • the width of the surface 127a is t1.
  • the thickness (width of the opening surface 127a) of the lip portions 129 and 129 at the opening surface 127a of the slit 127 is It is t3.
  • the thickness t3 of the lip portions 129 and 129 at the third portion is smaller than the thickness t2 of the lip portions 129 and 129 at the second portion (t2> t3), and the thickness t0 of the other portion of the tube 121 Greater than (t3> t0).
  • the thickness of the lip portions 129, 129 is the same as the thickness t3 of the lip portion 129 of the third portion, and is constant.
  • the opening end 122 and the vicinity of the opening end 122 (section A1) are formed in the thick portion having a large thickness.
  • the pair of close contact portions 125, 125 is constituted by thick thick portions of the pair of lip portions 129, 129 in the section A1. Therefore, the close portions 125, 125 can be in close contact with the coil spring 16 more than the other covering portion 121ao of the tube 121 (the portion 121ao located in the range of the section A2 in the hole 121a of the tube 121) It is.
  • the second embodiment exhibits substantially the same effect as the first embodiment. Furthermore, in the second embodiment, as shown in FIGS. 10 to 13, the slits 127 extend continuously from the open end 122 to the other end 123 of the sheet rubber 120 made of the tubular elastic member 121. Therefore, when covering the end turn 16a at the lower end with the sheet rubber 120, the slit 127 can be pushed open to cover the end turn 16a at the lower end. For this reason, the coating operation is easy. Furthermore, since the lip portions 129, 129 are integrally formed on the inner peripheral surface 121b of the tubular elastic member 121 along the slit 127, the sealing performance of the slit 127 can be improved.
  • the sealing performance of the open end 122 can be improved by increasing the thickness of the lip portions 129, 129 in the vicinity of the open end 122 and the open end 122 to form the close portions 125, 125. For this reason, it is possible to prevent foreign matter such as rainwater and mud water transmitted through the winding 16d (effective winding portion 16d) of the coil spring 16 from entering between the coil spring 16 and the sheet rubber 120.
  • the durability of the coil spring 16 can be improved.
  • the sheet rubber 140 of the third embodiment comprises a tube 121 and a tightening portion 158.
  • the tube 121 has the same structure as that of the tube 121 of the second embodiment shown in FIGS.
  • the tightening portion 158 is located at the close portions 125, 125, and can tighten the close portions 125, 125 by tightening the tube 121 in the circumferential direction.
  • the tightening portion 158 includes a lid 151 and a locking portion 152.
  • the lid 151 is a substantially rectangular plate having elasticity, and by covering the slit 127 in the circumferential direction of the tube 121, the slit 127 can be closed. Specifically, the lid 151 is located in the vicinity of the open end 122 and in the vicinity of the close portions 125, 125, and is provided on the outer peripheral surface 121d of the tube 121 so as to be able to open and close. Such a lid 151 can tighten the close portions 125, 125 by closing a portion of the slit 127 located in the vicinity of the close portions 125, 125 from an open state.
  • the lid 151 has a fixing portion 153 positioned at one end of the lid 151 and a locking hole 154 positioned at the other end of the lid 151.
  • the fixing portion 153 of the lid portion 151 is fixed to one side of the outer peripheral surface 121 d of the tube 121 across the slit 127, and the locking portion 152 is provided on the other side.
  • the locking portion 152 is a member for locking the lid portion 151, and includes a boss portion 155 standing from the outer peripheral surface 121d of the tube 121, and an enlarged diameter portion 156 formed at the tip of the boss portion 155.
  • the boss portion 155 is formed of an elongated round bar.
  • the enlarged diameter portion 156 is a ball having a diameter larger than that of the boss portion 155, and can be locked by fitting the locking hole 154 of the lid portion 151.
  • the elastic lid portion 151 is pulled toward the locking portion 152, and the locking hole 154 is fitted into the locking portion 152 and stopped (see the arrow e3).
  • the tightening effect of the vicinity of the open end 122 can be enhanced by the tightening portion 158, and as a result, the sealing performance of the sheet rubber 140 can be further improved.
  • the third embodiment exhibits substantially the same effect as the second embodiment. Furthermore, in the third embodiment, as shown in FIGS. 14 to 20, when covering the coil spring 16 with the sheet rubber 140 (tube 121), it becomes easy to cover by loosening the tightening portion 158. After coating, the tight portions 125, 125 can be tightened by tightening the sheet rubber 140 in the circumferential direction by the tightening portion 158. As a result, the sealability of the open end 122 can be secured, and the entry of water or foreign matter from the open end 122 into between the coil spring 16 and the seat rubber 140 can be prevented. Thereby, the durability of the coil spring 16 can be improved. Thus, the ease of coating operation and the sealing performance can be improved.
  • a suspension device is disposed between a vehicle body and a wheel, and includes a coil spring that reduces vibration, a spring seat that supports the end winding of the coil spring, and a spring seat that is disposed around the coil spring. And a sheet rubber to be coated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)
  • Springs (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

Cette invention concerne un dispositif de suspension (20) dans lequel une spire terminale (16a) située à l'extrémité inférieure d'un ressort hélicoïdal (16) est supportée par un patin de ressort (81), un caoutchouc de patin (100, 120, ou 140) étant disposé entre ceux-ci. Le caoutchouc de patin est un élément qui recouvre la spire terminale. La spire terminale commence à être recouverte au niveau d'une extrémité ouverte (102 ou 122) du caoutchouc de patin. Le caoutchouc de patin présente, à l'extrémité ouverte (102 ou 122), une section de contact rapproché (105 ou 125) apte à entrer en contact plus rapproché avec la surface périphérique extérieure (16b) de la spire terminale, comparativement à une autre zone de couverture (101a ou 121a).
PCT/JP2011/055506 2010-03-23 2011-03-09 Dispositif de suspension WO2011118390A1 (fr)

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Application Number Priority Date Filing Date Title
CN201180007197.6A CN102725154B (zh) 2010-03-23 2011-03-09 悬架装置
JP2012506922A JP5752112B2 (ja) 2010-03-23 2011-03-09 サスペンション装置

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JP2010-066921 2010-03-23
JP2010066921 2010-03-23

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WO2011118390A1 true WO2011118390A1 (fr) 2011-09-29

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2020162113A1 (fr) * 2019-02-05 2020-08-13 中央発條株式会社 Ressort de dispositif de suspension
US11807058B2 (en) * 2020-09-25 2023-11-07 Toyota Jidosha Kabushiki Kaisha Suspension and coil spring of the same

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CN104061266B (zh) * 2014-06-29 2016-01-20 韩进 汽车减震缓冲器
CN104061268B (zh) * 2014-06-29 2016-01-20 韩进 汽车减震缓冲器

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JP2004162901A (ja) * 2002-06-13 2004-06-10 Allevard Rejna Autosuspensions サスペンションスプリング用シース
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JP2006194426A (ja) * 2004-12-16 2006-07-27 Showa Corp 油圧緩衝器のスプリングシート構造
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JP2010242968A (ja) * 2009-04-02 2010-10-28 Dong Yang Physical & Chemical Co Ltd 自動車懸架装置用コイルバネ保護チューブ

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FR2789944A1 (fr) * 1999-02-19 2000-08-25 Michelin & Cie Jambe de force d'une suspension de roue de type mac pherson
FR2892166B1 (fr) * 2005-10-13 2010-08-13 Renault Sas Gaine pour ressort de suspension

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JP2003206968A (ja) * 2002-01-16 2003-07-25 Nissan Motor Co Ltd コイルスプリングの異音発生防止用チューブ及びコイルスプリング
JP2003206969A (ja) * 2002-01-16 2003-07-25 Nissan Motor Co Ltd コイルスプリングの異音発生防止用チューブ及びコイルスプリング
JP2004162901A (ja) * 2002-06-13 2004-06-10 Allevard Rejna Autosuspensions サスペンションスプリング用シース
KR200370482Y1 (ko) * 2004-08-17 2004-12-17 (주) 동양이화 자동차 현가장치 스프링보호용 튜브
JP2006194426A (ja) * 2004-12-16 2006-07-27 Showa Corp 油圧緩衝器のスプリングシート構造
JP2008024158A (ja) * 2006-07-21 2008-02-07 Mitsubishi Motors Corp コイルスプリングの位置決め構造
JP2010242968A (ja) * 2009-04-02 2010-10-28 Dong Yang Physical & Chemical Co Ltd 自動車懸架装置用コイルバネ保護チューブ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020162113A1 (fr) * 2019-02-05 2020-08-13 中央発條株式会社 Ressort de dispositif de suspension
US11807058B2 (en) * 2020-09-25 2023-11-07 Toyota Jidosha Kabushiki Kaisha Suspension and coil spring of the same

Also Published As

Publication number Publication date
CN102725154B (zh) 2015-02-25
CN102725154A (zh) 2012-10-10
JPWO2011118390A1 (ja) 2013-07-04
JP5752112B2 (ja) 2015-07-22

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