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WO2011080795A1 - Dispositif de suspension - Google Patents

Dispositif de suspension Download PDF

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Publication number
WO2011080795A1
WO2011080795A1 PCT/JP2009/007326 JP2009007326W WO2011080795A1 WO 2011080795 A1 WO2011080795 A1 WO 2011080795A1 JP 2009007326 W JP2009007326 W JP 2009007326W WO 2011080795 A1 WO2011080795 A1 WO 2011080795A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil chamber
suspension device
adjusting
cylinder
valve mechanism
Prior art date
Application number
PCT/JP2009/007326
Other languages
English (en)
Japanese (ja)
Inventor
増田憲
Original Assignee
株式会社テイン
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社テイン filed Critical 株式会社テイン
Priority to PCT/JP2009/007326 priority Critical patent/WO2011080795A1/fr
Publication of WO2011080795A1 publication Critical patent/WO2011080795A1/fr

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Classifications

    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
    • F16F9/466—Throttling control, i.e. regulation of flow passage geometry
    • 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
    • B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
    • B60G15/068—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit specially adapted for MacPherson strut-type suspension
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/54—Arrangements for attachment
    • 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
    • B60G2204/128—Damper mount on vehicle body or chassis
    • 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
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41—Elastic mounts, e.g. bushings
    • 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
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/416—Ball or spherical joints

Definitions

  • the present invention relates to a suspension device used in a vehicle.
  • the suspension device used in the vehicle can not ensure optimum shock absorption unless it is in the recovery state (stretched state).
  • an opening and closing mechanism for opening and closing the valve mechanism is disposed between the vehicle body mounting bracket and the wheel mounting bracket.
  • the operating condition of the opening and closing mechanism is to be changed, if the opening and closing mechanism is positioned between the vehicle mounting bracket and the wheel mounting bracket, the operating condition can not be changed unless the suspension device is removed from the vehicle. Work becomes difficult.
  • An object of the present invention is, in view of the above-mentioned conventional situation, to provide a suspension device capable of easily adjusting the operating conditions of the valve mechanism and rapidly recovering while securing the traveling performance of the vehicle.
  • the suspension device of the present invention defines a cylinder, and a first oil chamber and a second oil chamber inside the cylinder, the first oil chamber and the second oil chamber.
  • a piston having a first oil passage communicating with the oil chamber, a piston rod connected to the piston, a control rod passing through the inside of the piston rod, and one end of the control rod
  • a valve mechanism for adjusting a flow rate of a second oil passage communicating with the first oil chamber and the second oil chamber; at least one of the piston rod and the control rod;
  • a biasing mechanism for biasing in a direction to open the path, and a mounting bracket portion attached to the vehicle body, the biasing mechanism being disposed on the opposite side of the cylinder with the mounting bracket portion interposed therebetween.
  • the biasing mechanism is configured such that the biasing force biasing the at least one of the piston rod and the control rod during the extension process of the suspension device exceeds a compression load applied to the biasing mechanism.
  • the second oil passage is opened by a mechanism.
  • the biasing mechanism includes an elastic body and a spacer that defines the biasing force of the biasing mechanism together with the elastic body.
  • the operating space defining the opening amount of the valve mechanism is configured such that an adjusting member for adjusting the height of the operating space can be inserted from the opposite side to the cylinder with the mounting bracket portion interposed therebetween. .
  • an adjustment needle for adjusting the flow rate of the third oil passage communicating with the first oil chamber and the second oil chamber, and an adjustment rod for adjusting the position of the adjustment needle through the inside of the control rod
  • an adjusting operation unit for performing an operation of adjusting the position of the adjusting needle through the adjusting rod.
  • the adjustment operation part is disposed on the opposite side of the cylinder with the mounting bracket part interposed therebetween.
  • the system further comprises closing means for closing the third oil passage by a pressure difference between the first oil chamber and the second oil chamber during the compression step of the suspension device, and the adjustment needle comprises the suspension The flow rate of the third oil passage is adjusted during the elongation process of the device.
  • the opening and closing conditions of the valve mechanism can be easily adjusted, and rapid recovery can be achieved while securing the traveling performance of the vehicle.
  • FIGS. 1A and 1B are cross-sectional views showing an upper main part and a lower main part of a suspension device according to an embodiment of the present invention.
  • FIGS. 2A and 2B are cross-sectional views showing upper and lower essential parts of the suspension device when the valve mechanism 5 is opened.
  • FIG. 3 is a cross-sectional view showing the lower essential part of the suspension device when the adjustment needle 20 is opened.
  • the piston (piston valve) 1 shown in FIG. 1B is connected to a piston rod bottom 29 fastened to the lower end of the piston rod 4 and has a first oil chamber C1 and a second oil chamber C2 located across the piston 1 And The volumes of the first oil chamber C1 and the second oil chamber C2 are variable as the piston 1 slides on the inner peripheral surface of the cylinder 2.
  • the piston 1 is penetrated by the small diameter part 29a formed in the lower part of the piston rod bottom 29 in the through-hole 1a formed in the central axis.
  • a through hole 1b communicating with the first oil chamber C1 and the second oil chamber C2 is formed.
  • the through hole 1b is formed in parallel with the through hole 1a constituting the first oil passage P1.
  • Leaf valves 30, 31 for generating a damping force by restricting the flow rate of the oil passage P1 are disposed at the upper end and the lower end of the piston 1 across the through hole 1b.
  • a temperature compensating valve 17 is disposed between the piston 1 and the large diameter portion 29 b located at the top of the piston rod bottom 29.
  • the piston rod 4 protrudes upward from the cylinder 2 through a lock guide 3 that seals an internal fluid such as oil with the outside. As shown in FIG. 1A, the upper end of the piston rod 4 is fastened to the lower end of the piston rod top 15 which is coaxial with each other.
  • the piston rod top 15 is fitted to the inner peripheral surface of the outer cylinder 27 disposed outside the cylinder 2 at the lower end which is the large diameter portion.
  • the valve mechanism 5 shown in FIG. 1B is disposed on the lower end side (one end side) of the control rod 6. Specifically, the valve mechanism 5 is fastened at its upper end to the lower end of the control rod 6 passing through the inside of the piston rod 4, and the inside of the large diameter portion 29 b of the piston rod bottom 29 and the inside of the lower end of the piston rod 4 Are arranged across the
  • the valve mechanism 5 can be positioned by another member such as the piston rod bottom 29, for example.
  • valve mechanism 5 axially slides on the inner circumferential surface of the piston rod 4. As will be described in detail later, the valve mechanism 5 slightly moves downward when the downward biasing force of the biasing mechanism 18 shown in FIG. 1A exceeds the compression load applied to the biasing mechanism 18. Thus, the valve mechanism 5 passes through a radially extending through hole 29 d formed in the large diameter portion 29 b of the piston rod bottom 29 and an axially extending through hole 29 c formed in the small diameter portion 29 a.
  • the oil passage P2 is opened (see FIG. 2B) and closed (see FIG. 1B).
  • the control rod 6 is fastened at its upper end to the lower end of a rod top 7 which is coaxial with each other and has the same diameter and a cylindrical shape.
  • the rod top 7 penetrates the top cap 8.
  • the top cap 8 is fastened to the rod top 7.
  • the top cap 8 is also fastened to the top of the mount top 10.
  • the top nut 16 is fastened to the upper end of the piston rod top 15.
  • a biasing mechanism 18 is disposed between the top cap 8 and the top nut 16 located below the top cap 8.
  • the biasing mechanism 18 includes a plurality of spring washers 18a and a plurality of spacers 18b.
  • the spring washer 18 a biases the cylinder rod top 15 and hence the cylinder rod 4 downward by biasing the top nut 16 downward.
  • the spring washer 18a is The cylinder rod 4 is finely moved downward. As the cylinder rod 4 finely moves downward as described above, as shown in FIG. 2B, the second oil passage P2 closed by the valve mechanism 5 is opened.
  • the spacer 18 b is disposed between the top cap 8 and the top nut 16 together with the spring washer 18 a. Further, the spacer 18b is inserted so as to press the spring washer 18a, thereby defining the biasing force of the biasing mechanism 18 together with the spring washer 18a.
  • the opening / closing amount of the valve mechanism 5 by the biasing mechanism 18 is defined by the height of the operation space S between the top nut 16 and the mount top 10.
  • the working space S is located (exposed) on the opposite side of the mounting bracket portion 14 from the cylinder 2. Therefore, the height of the working space S, and hence the height of the working space S can be easily determined by removing the top cap 8 and the top nut 16 and inserting the top cap 8 and the top nut 16 into the working space S as an adjusting member for adjusting the height of the working space S.
  • the opening / closing amount of the second oil passage P2 can be adjusted.
  • top cap 8 After the top cap 8 is fastened to the mount top 10 by adjusting the opening and closing conditions of the valve mechanism 5 (that is, the biasing force of the spring washer 18a) and the opening and closing amount (that is, the height of the operation space S due to the annular shim 28).
  • the top cap 8 is fixed to the rod top 7 and the mount top 10 by a lock nut 9 screwed to the rod top 7.
  • the mount top 10 sandwiches the pillow ball 11 a of the bearing portion 11 with the lower portion of the mount bottom 12 and is fastened to the outer peripheral surface of the upper portion of the mount bottom 12 on the inner peripheral surface.
  • the pillow ball 11a of the bearing portion 11 is rotatably supported by the ball support portion 11b.
  • the ball support portion 11 b is sandwiched by the base portion 11 c and the ring nut 13 fastened to the lower end thereof.
  • the base portion 11 c is fixed to the mounting bracket portion 14 to the vehicle body by a screw 19.
  • the lower outer peripheral surface of the top nut 16 is formed in a tapered shape whose diameter decreases as it goes downward.
  • the upper inner peripheral surface of the mount bottom 12 is formed in a tapered shape in which the diameter increases toward the upper side.
  • the top nut 16 can slide (moves slightly) on the upper inner peripheral surface of the mount bottom 12 on the lower outer peripheral surface. Therefore, as described above, the piston rod top 15 and the piston rod 4 can be slightly moved downward by the height of the operation space S between the top nut 16 and the mount top 10.
  • the piston rod top 15 fastened to the top nut 16 is supported by the mounting bracket portion 14, the bearing portion 11 and the ring nut 13 integrally fixed to the mounting bracket portion 14, and the bearing portion 11 Fine movement of the mount bottom 12, the mount top 10 and the top cap 8 is possible in the vertical direction.
  • the adjustment needle 20 is slidably inserted from above into the valve mechanism 5 shown in FIG. 1B.
  • the adjusting needle 20 is in contact with the lower end of the adjusting rod 24 shown in FIGS. 1A and 1B.
  • the adjusting rod 24 projects above the top cap 8 through the inside of the control rod 6 and the rod top 7 located above it.
  • a needle stopper 21 into which the lower end portion of the adjustment needle 20 is inserted is press-fitted to the valve mechanism 5.
  • an iron ball 22 as a closing means is disposed below the needle stopper 21, as a closing means.
  • the iron ball 22 can move freely between the needle stopper 21 and the pin 23 provided in the valve mechanism 5. Further, the iron ball 22 moves upward by the pressure difference between the second oil chamber C2 and the first oil chamber C1 during the compression process of the suspension device, causing the pressure difference with the first oil chamber C1, and the needle stopper At the lower end of 21, the third oil passage P3 described later shown in FIG. 3 is closed.
  • an adjustment screw 25 is provided at the upper end of the adjustment rod 24.
  • the adjustment screw 25 is fastened to the upper inner peripheral surface of the rod top 7.
  • An adjustment knob 26 as an adjustment operation unit is disposed above the adjustment screw 25, and the adjustment rod 24 and hence the adjustment needle 20 can be vertically moved via the adjustment screw 25 by the adjustment knob 26.
  • the oil in the first oil chamber C1 is inserted into the through hole 29d of the large diameter portion 29b of the piston rod bottom 29, and the valve mechanism 5 of the through holes 29e extending in the central axis direction and accommodating the valve mechanism 5.
  • valve disposed at the lower end (one end) side of the control rod 6 by adjusting the flow rate of the second oil passage P2 communicating with the first oil chamber C1 and the second oil chamber C2.
  • the mechanism 5 is released by the biasing force of the biasing mechanism 18.
  • the biasing mechanism 18 is disposed on the opposite side of the mounting bracket portion 14 from the cylinder 2.
  • the valve mechanism 5 is opened to weaken the damping force, and the suspension device is rapidly It is possible to be in a recovery state (elongation state). This makes it possible to operate the vehicle (for example, acceleration, steering, braking, etc.) at an early stage even if the wheels are floating.
  • the biasing mechanism 18 is disposed on the opposite side to the cylinder 2 with the mounting bracket portion 14 interposed therebetween, only by removing the lock nut 9 and the top cap 8 without removing the suspension device itself from the vehicle,
  • the adjustment of the biasing force that is, the opening and closing conditions of the valve mechanism 5 can be adjusted, and the traveling performance can be enhanced by securing the arrangement space of the cylinder 2 and the like.
  • the opening and closing conditions of the valve mechanism 5 can be easily adjusted, and rapid recovery can be achieved while securing the traveling performance of the vehicle.
  • the biasing mechanism 18 includes a spring washer 18 a as an elastic body, and a spacer 18 b which defines the biasing force of the biasing mechanism 18 together with the spring washer 18 a. Therefore, the opening / closing timing of the valve mechanism 5 can be easily adjusted by the selection of the number, the type, and the like above the mounting bracket portion 14 by the spring washer 18a.
  • the spring washer 18a is used as an elastic body. Therefore, the biasing force can be effectively exerted even in a small space. Further, in the present embodiment, in the working space S for defining the opening amount of the valve mechanism 5, the annular shim (the adjusting member) 28 for adjusting the height of the working space S is interposed between the cylinder 2 and the mounting bracket portion 14. And can be inserted from the other side. Therefore, the opening amount of the valve mechanism 5 can be easily adjusted.
  • the suspension device includes the adjustment needle 20 that adjusts the flow rate of the third oil passage P3 by adjusting the position by the adjustment rod 24 passing through the inside of the control rod 6, and the adjustment rod 24. And an adjusting knob (adjusting operation unit) 26 for performing an operation of adjusting the position of the adjusting needle 20.
  • the damping force can be adjusted with a simple configuration.
  • the adjustment knob 26 is disposed on the opposite side of the mounting bracket portion 14 to the cylinder 2. Therefore, adjustment of damping force can be made easy by simple composition.
  • the suspension device is a closing means (iron ball 22) for closing the third oil passage P3 by the differential pressure between the first oil chamber C1 and the second oil chamber C2 during the compression step. Furthermore, the adjustment needle 20 adjusts the flow rate of the third oil passage P3 during the extension process of the suspension device. Thereby, it is possible to prevent the adjustment of the damping force using the third oil passage P3 at the time of the extension process from affecting at the time of the compression process.
  • valve mechanism 5 is biased by urging the control rod 6 and the valve mechanism 5 side upward. If the valve mechanism 5 can be opened by the biasing force of the biasing mechanism 18, the structure of the suspension device can be changed as appropriate.
  • the biasing mechanism 18 opens the valve mechanism 5 when the biasing force exceeds the compression load, but by providing a plurality of biasing mechanisms having different biasing forces in parallel, etc. It is also possible to adjust the opening of the valve mechanism 5 in multiple stages.

Landscapes

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

Abstract

L'invention concerne un dispositif de suspension qui comprend un cylindre ; un piston qui définit une première chambre à huile et une deuxième chambre à huile à l'intérieur du cylindre, et qui présente un premier chemin d'huile en communication avec la première chambre à huile et la deuxième chambre à huile ; une tige de piston accouplée au piston ; une tige de commande qui s'étend à travers l'intérieur de la tige de piston ; un mécanisme de soupape qui est disposé à une extrémité de la tige de commande et qui ajuste le débit dans le deuxième chemin d'huile qui est en communication avec la première chambre à huile et la deuxième chambre à huile ; un mécanisme de poussée qui pousse au moins l'une de la tige de piston et de la tige de commande dans une direction dans laquelle le mécanisme de soupape ouvre le deuxième chemin d'huile ; et une partie de console de fixation qui doit être attachée à une caisse d'un véhicule. Le mécanisme de poussée est disposé en l'occurrence du côté opposé au cylindre par rapport à la partie de console de fixation.
PCT/JP2009/007326 2009-12-28 2009-12-28 Dispositif de suspension WO2011080795A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/007326 WO2011080795A1 (fr) 2009-12-28 2009-12-28 Dispositif de suspension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/007326 WO2011080795A1 (fr) 2009-12-28 2009-12-28 Dispositif de suspension

Publications (1)

Publication Number Publication Date
WO2011080795A1 true WO2011080795A1 (fr) 2011-07-07

Family

ID=44226231

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/007326 WO2011080795A1 (fr) 2009-12-28 2009-12-28 Dispositif de suspension

Country Status (1)

Country Link
WO (1) WO2011080795A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3584464A1 (fr) * 2018-06-19 2019-12-25 Ktm Ag Amortisseur

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6113040A (ja) * 1984-06-27 1986-01-21 Kawasaki Heavy Ind Ltd 油圧緩衝器
JPH0454342U (fr) * 1990-09-17 1992-05-11
JP2002161939A (ja) * 2000-11-24 2002-06-07 Parts Creator Kk ショックアブソーバー
JP2003172394A (ja) * 2001-12-07 2003-06-20 Showa Corp 油圧緩衝器の減衰力調整装置
JP2005291491A (ja) * 2004-03-31 2005-10-20 Bos Sarl 選択的衝撃吸収制御を行う油圧衝撃吸収装置を備えるサスペンション装置
JP2007534901A (ja) * 2004-04-26 2007-11-29 アモルティッシャー ドネレー 急速回復式および油圧式端部停止を備えた衝撃吸収装置および利用方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6113040A (ja) * 1984-06-27 1986-01-21 Kawasaki Heavy Ind Ltd 油圧緩衝器
JPH0454342U (fr) * 1990-09-17 1992-05-11
JP2002161939A (ja) * 2000-11-24 2002-06-07 Parts Creator Kk ショックアブソーバー
JP2003172394A (ja) * 2001-12-07 2003-06-20 Showa Corp 油圧緩衝器の減衰力調整装置
JP2005291491A (ja) * 2004-03-31 2005-10-20 Bos Sarl 選択的衝撃吸収制御を行う油圧衝撃吸収装置を備えるサスペンション装置
JP2007534901A (ja) * 2004-04-26 2007-11-29 アモルティッシャー ドネレー 急速回復式および油圧式端部停止を備えた衝撃吸収装置および利用方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3584464A1 (fr) * 2018-06-19 2019-12-25 Ktm Ag Amortisseur
JP2019219057A (ja) * 2018-06-19 2019-12-26 ケーティーエム アーゲーＫｔｍ Ａｇ 振動ダンパー
US11035432B2 (en) 2018-06-19 2021-06-15 Ktm Ag Vibration damper
JP7083320B2 (ja) 2018-06-19 2022-06-10 ケーティーエム アーゲー 振動ダンパー

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