WO2003070551A1 - Amortisseur de direction de motocycle - Google Patents
Amortisseur de direction de motocycle Download PDFInfo
- Publication number
- WO2003070551A1 WO2003070551A1 PCT/JP2003/001884 JP0301884W WO03070551A1 WO 2003070551 A1 WO2003070551 A1 WO 2003070551A1 JP 0301884 W JP0301884 W JP 0301884W WO 03070551 A1 WO03070551 A1 WO 03070551A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oil
- steering
- steering damper
- chamber
- check ball
- Prior art date
Links
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
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K21/00—Steering devices
- B62K21/08—Steering dampers
-
- 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
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
- F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7771—Bi-directional flow valves
- Y10T137/778—Axes of ports co-axial
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7869—Biased open
- Y10T137/7871—Weight biased
- Y10T137/7873—Ball valves
Definitions
- the present invention relates to a motorcycle steering damper for suppressing front wheel system shake due to disturbance.
- a proposal has been made to provide a steering damper between a handle member such as a handle bracket and a vehicle body frame, to absorb a disturbance from a road surface by a damping force generated in the steering damper, and to suppress a front wheel system swing.
- a handle member such as a handle bracket and a vehicle body frame
- the inside of the cylinder is divided into two oil chambers by a biston that slides in the cylinder in conjunction with the steering operation, and an oil hole (orifice) that connects both oil chambers is formed in the piston.
- a bypass passage is provided to allow the oil in one oil chamber to bypass the oil hole and flow to the other oil chamber, and to control the vehicle's behavior such as vehicle speed, steering angle, and load detected by the sensor.
- the electromagnetic valve is controlled on the basis of this, and if necessary, the bypass passage is closed by the electromagnetic valve to rapidly increase the damping force to absorb disturbances, thereby suppressing the front wheel system swing.
- the above-mentioned conventional steering damper requires a sensor for detecting a vehicle speed, a steering angle, and the like, and performs control based on a detection signal from the sensor.
- the operation of the electromagnetic valve and the like increases the number of parts and increases the cost, and it is difficult to secure high reliability in operation due to control delay and the like.
- the present invention has been made in view of the above problems, and its object is to eliminate the need for electrical control, operate mechanically reliably, reduce costs by reducing the number of parts, and achieve high reliability. It is an object of the present invention to provide a steering damper for a motorcycle which can secure the front wheel system due to disturbance while suppressing the vibration.
- the invention described in claim 1 divides the inside of the cylinder into two oil chambers by a biston sliding in the cylinder in conjunction with the steering operation, and
- a steering damper for a motorcycle in which a passage for communication is provided in a portion other than the biston, a sub-chamber is formed in the middle of the passage, and a steering pressure exceeds a predetermined value and a differential pressure between both oil chambers becomes a constant value.
- a check ball is provided in the sub-chamber so as to move and reduce the cross-sectional area of the passage.
- an oil hole that connects the two oil chambers is formed in the piston.
- a slit is formed on a surface of the passage on which the check ball is seated.
- a fourth aspect of the present invention is the invention according to the first, second, or third aspect, wherein the check ball is passed through the bypass passage when the pressure difference between the two oil chambers is less than a predetermined value.
- the invention as set forth in claim 5 is characterized in that a holding means for holding the holding means in a neutral position which is not closed is provided, wherein the holding means is provided on the floor of the sub-chamber. It is characterized by comprising a concave curved surface or a magnet formed You.
- the invention set forth in claim 6 is characterized in that, in the invention set forth in claim 4, the holding means is constituted by a spring for holding the check ball in a neutral state.
- FIG. 1 is a right side view of a motorcycle having a steering damper according to the present invention
- FIG. 2 is a plan view of the motorcycle front showing an arrangement structure of a steering damper according to the present invention
- FIG. FIG. 4 is a schematic cross-sectional view of the steering damper according to the present invention (when the bypass passage is opened)
- FIG. 4 is a schematic cross-sectional view of the steering damper according to the present invention (when the bypass passage is closed)
- FIG. FIG. 6 is a schematic cross-sectional view of a steering damper according to another embodiment of the present invention (when the bypass passage is closed)
- FIG. 7 is an enlarged detailed view of a portion X in FIG. 6, and FIG. Fig.
- FIG. 7 is a cross-sectional view taken along the line Y-Y of Fig. 7.
- Fig. 9 is a cross-sectional view showing a holding means (magnet) for holding the check ball in a neutral position.
- Fig. 10 is a view for holding a tub ball in a neutral position.
- Cross-sectional view, Fig. 1 1 shows the holding of the check ball in the neutral position
- FIG. 12 is a cross-sectional view showing the means (spring).
- FIG. 12 is a plan view of the front part of the motorcycle showing another example of the arrangement of the steering damper according to the present invention.
- FIG. 1 is a right side view of a motorcycle front provided with a steering damper according to the present invention
- FIG. 2 is a plan view of the motorcycle front showing an arrangement structure of a steering damper.
- reference numeral 2 denotes a head pipe located at an upper front part of a vehicle body, and a steering shaft 3 is supported in the head pipe 2 so as to be rotatable left and right.
- Upper and lower brackets 4 and 5 are attached to the upper and lower ends, respectively.
- a handle 6 is attached to the upper bracket 4, an upper portion of the front fork 7 is supported between the upper bracket 4 and the under bracket 5, and a front wheel 8 is provided at a lower end of the front fork 7. It is rotatably supported.
- a body frame 9 extends from the head pipe 2 toward the rear of the vehicle body.
- a steering damper 1 according to the present invention is provided between the vehicle body frame 9 on the right side of the vehicle body and the under bracket 5. 0 is interposed.
- reference numeral 11 denotes a fuel tank.
- the steering damper 10 includes a cylinder 12 and a piston rod 13 which is impulsively inserted into the cylinder 12 and includes a cylinder rod 13. 12 is attached to the right side of the under bracket 5, and one end of the piston rod 13 is attached to the right side of the body frame 9.
- the structure and operation of the steering damper 10 are shown in FIG. ⁇ Based on Fig. 5 explain. 3 to 5 are schematic cross-sectional views of the steering damper.
- the biston rod 13 inserted into the cylinder 12 is provided with a biston 14 slidably inserted into the cylinder 12.
- Oil chambers A and B are defined by cylinders 14 in the cylinder 12, and these oil chambers A and B are filled with oil.
- the piston 14 is provided with a small-diameter oil hole (orifice) 15 for communicating the oil chambers A and B with each other.
- the oil in one oil chamber A (B) flows into the other oil chamber B (A), bypassing the oil hole 15 formed in the piston 14.
- a sub-chamber 17 is formed in the middle of the bypass passage 16.
- the steering speed the speed at which the front wheel system swings left and right due to disturbance from the ground
- the steering speed the speed at which the front wheel system swings left and right due to disturbance from the ground
- the sliding speed of 14 is also within the normal range, and the differential pressure between the two oil chambers A and B in the cylinder 12 is small, and this differential pressure causes the check ball 18 in the sub chamber 17
- the check ball 18 does not move, and the check ball 18 is in the neutral position as shown in FIG. 3.At this time, the bypass passage 16 is in the open state and the oil chambers A and B are communicated. I have.
- the damping force of the steering damper 10 sharply increases. Disturbance from the vehicle is absorbed, and vibration of the front wheel system is suppressed, so that the motorcycle 1 has high steering stability.
- the steering damper 10 employs a mechanical configuration in which the check ball 18 is moved by a differential pressure to close the bypass passage 16 when necessary, and thus the sensor and the Electric control is not required, and it is possible to reduce vibration of the front wheel system due to external disturbances while reducing costs and securing high reliability by reducing the number of parts.
- FIG. 6 is a schematic cross-sectional view of a steering damper according to another embodiment
- FIG. 7 is an enlarged detailed view of a portion X in FIG. 6
- FIG. 8 is a cross-sectional view taken along line YY of FIG.
- slits 16a are formed on a pair of left and right surfaces of the bypass passage 166 where the check balls 18 are seated, for example, as shown in FIG.
- the oil hole 15 (see FIGS. 3 and 4) formed in the piston 14 in the above embodiment can be omitted.
- the check ball 18 moves due to vibration, inclination of the vehicle body at the time of cornering, centrifugal force, and the like, and the bypass passage 16 is closed. Since a large damping force may be generated at 0 and a smooth steering operation may be hindered, the check ball 18 is passed through the bypass passage 16 when the differential pressure between the oil chambers A and B is less than a certain value. It is desirable to provide a holding means for holding the camera at a neutral position which is not closed.
- Fig. 9 to Fig. 11 show various forms of holding means.
- the one shown in Fig. 9 has a magnet 19 embedded in the floor of the sub-chamber 17 and a check ball by the magnetic force of this magnet 19.
- the concave ball 17a is formed on the floor of the subchamber 17, and the check ball 18 is neutralized by the concave curved surface 17a. It is designed to be held in position.
- the holding means shown in FIG. 11 is such that the check ball 18 is held in the neutral position in the sub-chamber 17 by a spring 20 externally fitted thereto.
- the holding means is used as shown in FIGS. 9 to 11, the check ball 18 is held at the neutral position while the pressure difference between the oil chambers A and B is less than a certain value. Therefore, the check pole 18 does not move due to vibration, tilting of the vehicle body at the time of cornering, centrifugal force and the like, and the bypass passage 16 is not closed, so that the steering operation in the normal operation state is smoothly performed without resistance. .
- the steering damper 10 is arranged in the front-rear direction of the vehicle body.
- the steering damper 10 may be arranged in the vehicle width direction.
- the piston rod 13 of the steering damper 10 is attached to the under bracket 5 side.
- the cylinders 12 are mounted on the head pipe 2 side.
- the cylinder is partitioned into two oil chambers by the piston sliding in the cylinder in conjunction with the steering operation, and the passage communicating the two oil chambers is formed.
- a steering damper for a motorcycle provided in a portion other than the biston, a sub-chamber is formed in the middle of the passage, and the sub-chamber is moved when a steering speed exceeds a predetermined value and a pressure difference between the two oil chambers becomes a predetermined value or more. Since the check ball for reducing the cross-sectional area of the passage is provided in the sub-chamber, electric control is not required, and the steering damper can be operated mechanically and reliably. As a result, it is possible to secure high reliability without downtime and control delay, and to suppress vibration of the front wheel system due to disturbance.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60335606T DE60335606D1 (de) | 2002-02-20 | 2003-02-20 | Lenkungsdämpfer für motorrad |
AT03706988T ATE494210T1 (de) | 2002-02-20 | 2003-02-20 | Lenkungsdämpfer für motorrad |
EP20030706988 EP1477397B1 (en) | 2002-02-20 | 2003-02-20 | Motorcycle steering damper |
US10/504,459 US7318592B2 (en) | 2002-02-20 | 2003-02-20 | Motorcycle steering damper |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002043496A JP2003237672A (ja) | 2002-02-20 | 2002-02-20 | 自動二輪車用ステアリングダンパー |
JP2002-43496 | 2002-02-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003070551A1 true WO2003070551A1 (fr) | 2003-08-28 |
Family
ID=27750528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/001884 WO2003070551A1 (fr) | 2002-02-20 | 2003-02-20 | Amortisseur de direction de motocycle |
Country Status (7)
Country | Link |
---|---|
US (1) | US7318592B2 (ja) |
EP (1) | EP1477397B1 (ja) |
JP (1) | JP2003237672A (ja) |
CN (1) | CN100363226C (ja) |
AT (1) | ATE494210T1 (ja) |
DE (1) | DE60335606D1 (ja) |
WO (1) | WO2003070551A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7722061B2 (en) | 2008-04-08 | 2010-05-25 | Honda Motor Company, Ltd. | Steering dampers and vehicles including same |
CN108626296A (zh) * | 2018-04-02 | 2018-10-09 | 徐州徐工液压件有限公司 | 一种用在油气悬挂系统上的单向阻尼阀 |
Families Citing this family (28)
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JP4206353B2 (ja) * | 2003-08-26 | 2009-01-07 | 本田技研工業株式会社 | ステアリングダンパ装置 |
JP4234045B2 (ja) * | 2004-03-23 | 2009-03-04 | 本田技研工業株式会社 | ステアリングダンパ装置 |
JP2007112154A (ja) | 2005-10-17 | 2007-05-10 | Yamaha Motor Co Ltd | 鞍乗り型車両およびそれに用いるステアリングダンパ |
DE102006036135B4 (de) * | 2006-08-01 | 2010-07-22 | Edgar Uden | Lenkungsdämpfer mit veränderbarer Wirkung für Kraftfahrzeuge und andere Fahrzeuge mit nur einem gelenkten Vorderrad |
JP4909763B2 (ja) * | 2007-02-23 | 2012-04-04 | カヤバ工業株式会社 | ステアリングダンパ |
JP5033456B2 (ja) * | 2007-03-30 | 2012-09-26 | 本田技研工業株式会社 | ステアリングダンパ取付構造 |
US7793957B2 (en) | 2007-06-29 | 2010-09-14 | Kayaba Industry Co., Ltd. | Steering damping device |
JP5078076B2 (ja) * | 2007-07-02 | 2012-11-21 | ヤマハモーターハイドロリックシステム株式会社 | 車両のステアリング緩衝方法 |
DE102007048934A1 (de) * | 2007-10-12 | 2009-04-16 | Krones Ag | Vorrichtung zum Abfüllen von Getränken |
US7970511B2 (en) * | 2008-02-06 | 2011-06-28 | Honda Motor Company, Ltd. | Electronic steering damper systems and vehicles including same |
JP5255331B2 (ja) * | 2008-06-06 | 2013-08-07 | ヤマハ発動機株式会社 | ステアリングダンパシステム及びそれを備えた鞍乗り型車両 |
DE102009003248B4 (de) * | 2009-05-19 | 2011-12-29 | Saf-Holland Gmbh | Stabilisierungsvorrichtung für Achsen von Fahrzeugen |
WO2011023171A2 (de) | 2009-08-26 | 2011-03-03 | Martin Kraiss | Fahrrad mit arm- und beinantrieb. |
JP5567142B2 (ja) * | 2009-11-06 | 2014-08-06 | オーリンス・レイシング・エービー | 減衰特性の能動的調整装置を有するステアリングダンパ |
TWI379790B (en) * | 2009-12-30 | 2012-12-21 | Univ Nat Taiwan Science Tech | Safety device on steering handle |
JP5396292B2 (ja) * | 2010-01-21 | 2014-01-22 | 本田技研工業株式会社 | 鞍乗り型車両のステアリングダンパ装置 |
JP2011201354A (ja) * | 2010-03-24 | 2011-10-13 | Honda Motor Co Ltd | 鞍乗り型車両の前部構造 |
DE102011009142B4 (de) * | 2011-01-21 | 2017-03-16 | Edgar Uden | Stabilisierungssystem für Zweiräder |
WO2012149980A1 (en) | 2011-05-05 | 2012-11-08 | öHLINS RACING AB | Steering damper with active adjustment of damping characteristics |
CN104613199B (zh) * | 2013-11-05 | 2017-02-15 | 北汽福田汽车股份有限公司 | 单向超压锁止阀和副水箱 |
JP6191961B2 (ja) * | 2013-11-07 | 2017-09-06 | 静岡製機株式会社 | 燃焼制御装置 |
JP6256837B2 (ja) * | 2014-03-10 | 2018-01-10 | 本田技研工業株式会社 | 鞍乗り型車両のステアリング構造 |
US10173744B2 (en) * | 2015-10-05 | 2019-01-08 | Jeffrey M. Bales | Bicycle stabilizer devices and methods of stabilizing a bicycle |
CN107461442B (zh) * | 2017-07-12 | 2019-11-26 | 宁波拓普集团股份有限公司 | 一种阻尼拉杆 |
CN108167375A (zh) * | 2018-02-23 | 2018-06-15 | 四川大学 | 变阻尼隔振器及道床隔振系统 |
CN112141208B (zh) * | 2019-06-26 | 2022-03-15 | 广州汽车集团股份有限公司 | 一种车辆转向控制结构、车辆悬架结构和车辆 |
CN112145603A (zh) * | 2019-06-26 | 2020-12-29 | 广州汽车集团股份有限公司 | 一种车辆减振器、车辆悬架结构及车辆 |
CN110219926A (zh) * | 2019-07-05 | 2019-09-10 | 沈思成 | 一种自动振动启闭装置及安装有该自动振动启闭装置的自行车前叉 |
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2002
- 2002-02-20 JP JP2002043496A patent/JP2003237672A/ja active Pending
-
2003
- 2003-02-20 WO PCT/JP2003/001884 patent/WO2003070551A1/ja active Application Filing
- 2003-02-20 DE DE60335606T patent/DE60335606D1/de not_active Expired - Lifetime
- 2003-02-20 EP EP20030706988 patent/EP1477397B1/en not_active Expired - Lifetime
- 2003-02-20 AT AT03706988T patent/ATE494210T1/de not_active IP Right Cessation
- 2003-02-20 US US10/504,459 patent/US7318592B2/en not_active Expired - Fee Related
- 2003-02-20 CN CNB038041901A patent/CN100363226C/zh not_active Expired - Fee Related
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BE355784A (ja) | ||||
US1628811A (en) * | 1926-05-19 | 1927-05-17 | Houde Eng Corp | Shock absorber |
US1873100A (en) * | 1930-07-28 | 1932-08-23 | Edward L O Allen | Shock absorber |
JPS6121673U (ja) * | 1984-07-14 | 1986-02-07 | マツダ株式会社 | 車両のステアリング装置 |
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JPH05201377A (ja) | 1992-01-27 | 1993-08-10 | Honda Motor Co Ltd | 自動2輪車の操向装置 |
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JPH10325448A (ja) * | 1997-05-23 | 1998-12-08 | Otix:Kk | 油圧式オートテンショナ |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7722061B2 (en) | 2008-04-08 | 2010-05-25 | Honda Motor Company, Ltd. | Steering dampers and vehicles including same |
CN108626296A (zh) * | 2018-04-02 | 2018-10-09 | 徐州徐工液压件有限公司 | 一种用在油气悬挂系统上的单向阻尼阀 |
Also Published As
Publication number | Publication date |
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US20050151341A1 (en) | 2005-07-14 |
CN1635968A (zh) | 2005-07-06 |
DE60335606D1 (de) | 2011-02-17 |
EP1477397A1 (en) | 2004-11-17 |
EP1477397B1 (en) | 2011-01-05 |
CN100363226C (zh) | 2008-01-23 |
US7318592B2 (en) | 2008-01-15 |
ATE494210T1 (de) | 2011-01-15 |
EP1477397A4 (en) | 2009-01-28 |
JP2003237672A (ja) | 2003-08-27 |
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