JP2014098454A5 - - Google Patents

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Publication number
JP2014098454A5
JP2014098454A5 JP2012251065A JP2012251065A JP2014098454A5 JP 2014098454 A5 JP2014098454 A5 JP 2014098454A5 JP 2012251065 A JP2012251065 A JP 2012251065A JP 2012251065 A JP2012251065 A JP 2012251065A JP 2014098454 A5 JP2014098454 A5 JP 2014098454A5
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Japan
Prior art keywords
pressure receiving
receiving body
elastic member
inner tube
preload
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JP2012251065A
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Japanese (ja)
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JP2014098454A (en
JP5937491B2 (en
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Priority to JP2012251065A priority Critical patent/JP5937491B2/en
Priority claimed from JP2012251065A external-priority patent/JP5937491B2/en
Priority to CN201310320760.6A priority patent/CN103821873B/en
Publication of JP2014098454A publication Critical patent/JP2014098454A/en
Publication of JP2014098454A5 publication Critical patent/JP2014098454A5/ja
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Description

上記課題を解決するための緩衝装置の構成として、インナーチューブと、インナーチューブに同軸に挿通されるアウターチューブと、アウターチューブの内周側の底部に弾性部材とを備えた緩衝装置において、弾性部材が、取付手段によりアウターチューブの底部方向への収縮予圧を加えた状態で取り付けられたので、従来に比べてインナーチューブのアウターチューブの底部方向のストロークを長くでき緩衝装置自体の振動吸収性能を高めることができる。
また、上記課題を解決するための緩衝装置の他の構成として、アウターチューブは、底部より垂下し、インナーチューブ内に同軸に挿通されるロッドを備え、取付手段が、弾性部材に当接する受圧体と、ロッドに止着されて、受圧体のインナーチューブの底部方向への移動を規制する規制手段とで構成され、ロッドが受圧体を貫通することで、上記効果に加え、インナーチューブの先端が受圧体に衝突しても、受圧体がロッドに沿って移動できるので弾性部材によって衝撃を緩和させることができる。
また、上記課題を解決するための緩衝装置の他の構成として、取付手段が、弾性部材に当接する受圧体と、アウターチューブの内周面に止着されて、受圧体のインナーチューブの底部方向への移動を規制する規制手段とで構成されることで、上記効果に加え、インナーチューブの先端が受圧体に衝突しても、受圧体がアウターチューブに沿って移動できるので弾性部材によって衝撃を緩和させることができる。
また、上記課題を解決するための緩衝装置の他の構成として、規制手段の止着位置が、アウターチューブの軸線に沿って変更可能に設けられたことで、上記課題に加え、弾性部材をアウターチューブの底部方向に収縮予圧を加えるときの予圧量を調整することができる。
In a shock absorber provided with an inner tube, an outer tube coaxially inserted in the inner tube, and an elastic member at the bottom on the inner peripheral side of the outer tube, the shock absorber for solving the above problems However, since it was attached with the contraction preload in the bottom direction of the outer tube by the attachment means, the stroke in the bottom direction of the outer tube of the inner tube can be made longer than before, and the vibration absorbing performance of the shock absorber itself is improved. be able to.
Further, as another configuration of the shock absorber for solving the above-described problem, the outer tube includes a rod that hangs down from the bottom and is coaxially inserted into the inner tube, and the mounting means contacts the elastic member. And a regulating means that is fixed to the rod and regulates the movement of the pressure receiving body toward the bottom of the inner tube, and the rod penetrates the pressure receiving body, so that the tip of the inner tube Even if it collides with the pressure receiving body, the pressure receiving body can move along the rod, so that the impact can be reduced by the elastic member.
Further, as another configuration of the shock absorber for solving the above-described problem, the mounting means is fixed to the pressure receiving body that contacts the elastic member and the inner peripheral surface of the outer tube, and the bottom direction of the inner tube of the pressure receiving body In addition to the above effects, the pressure receiving body can move along the outer tube even if the tip of the inner tube collides with the pressure receiving body. Can be relaxed.
Further, the outer as another configuration of the cushioning device for solving the above problems, the fixing position of the regulating means, that provided so as to be changed along the axis of the outer tube, in addition to the above problems, the elastic member The amount of preload when the contraction preload is applied toward the bottom of the tube can be adjusted.

本実施形態では、上記受圧体7により上記弾性部材8に上記トップキャップ4方向の、収縮予圧を加えた状態で、受圧体7をピストンロッド5に止着している。すなわち、弾性部材8は、受圧体7により上方向への圧力がない状態では、図2に示すように、破線aに示す位置まで伸びて、弾性部材8の下端レベルは、L1の位置にあるが、本実施形態では、受圧体7によりこの弾性部材8の下端に、上方向(トップキャップ4方向)の圧力(予圧)を加えた状態では、実線bに示す位置まで収縮して弾性部材8の下端レベルは、L2の位置まで変形し、この変形を与えたままの状態で、受圧体7を止め輪11で固定する。つまり、受圧体7と止め輪11とで、弾性部材8を予圧を加えた状態で取り付けるための取付手段が構成される。
止め輪11は、CリングやEリングなどの環状の固定具であって、ピストンロッド5の外周面において上記弾性部材8に予圧を付与可能な位置に形成された環状溝20に固定される。環状溝20は、ピストンロッド5の外周面を円周方向に沿って円環状に窪む溝として形成され、止め輪11の位置、すなわち、受圧体7の位置を位置決めする位置決め手段である。また、止め輪11と環状溝20は、受圧体7のインナーチューブ1の底部方向への移動を規制する規制手段として機能する。
したがって、本実施形態では、図2に示すように、レベルL1からレベルL2までの距離Kの分だけインナーチューブ1の先端1zが、受圧体7の下面7bに衝突するまでのストロークが長くなる。
In the present embodiment, the pressure receiving body 7 is fastened to the piston rod 5 in a state in which the elastic member 8 is applied with the contraction preload in the direction of the top cap 4 by the pressure receiving body 7. That is, the elastic member 8 extends to the position indicated by the broken line a as shown in FIG. 2 in the state where there is no upward pressure by the pressure receiving body 7, and the lower end level of the elastic member 8 is at the position L1. However, in this embodiment, when pressure (preload) in the upward direction (top cap 4 direction) is applied to the lower end of the elastic member 8 by the pressure receiving body 7, the elastic member 8 contracts to the position indicated by the solid line b. The lower end level is deformed to the position of L2, and the pressure receiving body 7 is fixed by the retaining ring 11 in a state where this deformation is applied. That is, the pressure receiving body 7 and the retaining ring 11 constitute an attachment means for attaching the elastic member 8 with a preload applied.
The retaining ring 11 is an annular fixture such as a C ring or an E ring, and is fixed to an annular groove 20 formed at a position where a preload can be applied to the elastic member 8 on the outer peripheral surface of the piston rod 5. The annular groove 20 is a positioning means for positioning the position of the retaining ring 11, that is, the position of the pressure receiving body 7, formed as a groove recessed in an annular shape along the circumferential direction on the outer peripheral surface of the piston rod 5. Further, the retaining ring 11 and the annular groove 20 function as a restricting means for restricting the movement of the pressure receiving body 7 toward the bottom portion of the inner tube 1.
Therefore, in this embodiment, as shown in FIG. 2, the stroke until the tip 1z of the inner tube 1 collides with the lower surface 7b of the pressure receiving body 7 is increased by the distance K from the level L1 to the level L2.

Claims (1)

上記規制手段の止着位置が、アウターチューブの軸線に沿って変更可能に設けられたことを特徴とする請求項2又は請求項3記載の緩衝装置。 The fixing position of the regulating means, the buffer device according to claim 2 or claim 3, wherein the provided to be changed along the axis of the outer tube.
JP2012251065A 2012-11-15 2012-11-15 Shock absorber Active JP5937491B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2012251065A JP5937491B2 (en) 2012-11-15 2012-11-15 Shock absorber
CN201310320760.6A CN103821873B (en) 2012-11-15 2013-07-26 shock absorber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012251065A JP5937491B2 (en) 2012-11-15 2012-11-15 Shock absorber

Publications (3)

Publication Number Publication Date
JP2014098454A JP2014098454A (en) 2014-05-29
JP2014098454A5 true JP2014098454A5 (en) 2015-05-14
JP5937491B2 JP5937491B2 (en) 2016-06-22

Family

ID=50757090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012251065A Active JP5937491B2 (en) 2012-11-15 2012-11-15 Shock absorber

Country Status (2)

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JP (1) JP5937491B2 (en)
CN (1) CN103821873B (en)

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JPS5037959A (en) * 1973-08-08 1975-04-09
JPH0624579Y2 (en) * 1989-05-25 1994-06-29 大阪グリップ化工株式会社 Bearing structure
US6241391B1 (en) * 1997-04-28 2001-06-05 Howard Hoose Vehicle suspension and bearing therefor
JP4157670B2 (en) * 2000-06-27 2008-10-01 カヤバ工業株式会社 Front fork for motorcycle
JP2007092935A (en) * 2005-09-29 2007-04-12 Showa Corp Front fork
JP4700519B2 (en) * 2006-02-24 2011-06-15 株式会社ショーワ Front fork damping force adjustment device
JP4724614B2 (en) * 2006-07-13 2011-07-13 株式会社ブリヂストン Vibration isolator
JP2008144921A (en) * 2006-12-12 2008-06-26 Tokai Rubber Ind Ltd Engine mount
JP2010014133A (en) * 2008-06-30 2010-01-21 Tokai Rubber Ind Ltd Upper support
JP5150397B2 (en) * 2008-07-31 2013-02-20 株式会社ショーワ Hydraulic shock absorber
US20100148412A1 (en) * 2008-12-12 2010-06-17 Showa Corporation Hydraulic shock absorber
JP2010236577A (en) * 2009-03-30 2010-10-21 Showa Corp Hydraulic shock absorber of vehicle
JP5290875B2 (en) * 2009-06-05 2013-09-18 株式会社ブリヂストン Strut mount
JP5506451B2 (en) * 2010-02-25 2014-05-28 株式会社ショーワ Hydraulic shock absorber
JP2011231796A (en) * 2010-04-23 2011-11-17 Showa Corp Hydraulic shock absorber
JP2012051384A (en) * 2010-08-31 2012-03-15 Nsk Ltd Telescopic shaft for vehicle steering

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