JPH053677U - Shock absorber - Google Patents
Shock absorberInfo
- Publication number
- JPH053677U JPH053677U JP81291U JP81291U JPH053677U JP H053677 U JPH053677 U JP H053677U JP 81291 U JP81291 U JP 81291U JP 81291 U JP81291 U JP 81291U JP H053677 U JPH053677 U JP H053677U
- Authority
- JP
- Japan
- Prior art keywords
- disc valve
- shock absorber
- valve
- bending
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 25
- 230000035939 shock Effects 0.000 title claims abstract description 25
- 238000005452 bending Methods 0.000 claims abstract description 30
- 238000013016 damping Methods 0.000 abstract description 10
- 230000002093 peripheral effect Effects 0.000 description 9
- 239000012530 fluid Substances 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
(57)【要約】
【目的】 初回作動時と２回目以降の作動時における減
衰力特性の変動を防止することができる緩衝器を提供す
ること。
【構成】 複数枚のプレート３ａを重ねて構成されたデ
ィスクバルブ３が、その一部を２つの挟持部材（１，
４）間に挟持されて固定された緩衝器において、前記デ
ィスクバルブ３の各プレート３ａの表面のうちで、挟持
部材（１，４）に挟まれることで相互に圧接される部位
を、プレート表面の他の部位よりも粗面に形成した。さ
らに、請求項２記載のものでは、挟持部材（１，４）の
うちでディスクバルブ３の開弁撓み方向側に位置する挟
持部材（４）のディスクバルブ３に当接する当接面を、
両挟持部材（１，４）により挟持する範囲よりもディス
クバルブ３の撓み先端方向に突出させて形成した。
(57) [Summary] [Purpose] To provide a shock absorber capable of preventing fluctuations in damping force characteristics during the first operation and during the second and subsequent operations. [Structure] A disc valve 3 formed by stacking a plurality of plates 3a has a part of two holding members (1,
4) In the shock absorber sandwiched and fixed between the plates, the portions of the surfaces of the plates 3a of the disc valve 3 that are pressed against each other by being sandwiched by the sandwiching members (1, 4) are the plate surfaces. It was formed to be rougher than the other parts. Further, in the second aspect of the present invention, among the holding members (1, 4), the contact surface of the holding member (4) located on the valve opening deflection direction side of the disc valve 3 that contacts the disk valve 3 is:
The disc valve 3 is formed so as to project in the direction of the bending tip of the disc valve 3 beyond the range where it is clamped by both clamping members (1, 4).
Description
【０００１】[0001]
本考案は、自動車のサスペンションに用いるのに最適な緩衝器に関する。 The present invention relates to a shock absorber suitable for use in a vehicle suspension.
【０００２】[0002]
従来、緩衝器としては、例えば、英国ＰＡＴ．７５８７９８に記載されたもの が知られている。 Conventionally, as a shock absorber, for example, British PAT. Those described in 758798 It has been known.
【０００３】 この従来の緩衝器は、図４（イ）にその詳細を示すように、重ねられた複数枚 のプレート１０ａにより構成されるディスクバルブ１０が、その内周側を２つの 挟持部材１１，１２間に挟持固定されると共に、該ディスクバルブ１０の撓み方 向側の挟持部材１２の外径よりも、もう一方の挟持部材１１の外径が大きく形成 されたものであった。[0003] This conventional shock absorber has a plurality of stacked sheets, as shown in detail in FIG. The disc valve 10 composed of the plate 10a of the How to flex the disc valve 10 while being clamped and fixed between the clamping members 11 and 12 The outer diameter of the other sandwiching member 11 is larger than the outer diameter of the sandwiching member 12 on the opposite side. It was done.
【０００４】[0004]
しかしながら、このような従来の緩衝器にあっては、以下に述べるような問題 があった。 However, such a conventional shock absorber has the following problems. was there.
【０００５】 即ち、図４（ロ）に示すように、ディスクバルブ１０が開弁方向に流体圧を受 けて撓む場合、ディスクバルブ１０は小径の挟持部材１２の外周部を撓み支点と して撓む。そして、この撓み支点が両挟持部材１１，１２に挟持されていること から、この部分において、各プレート１０ａの上面と下面にそれぞれ反対方向の 半径方向応力σT ，σC が発生し、この両応力により、各プレート１０ａの相互 に当接する面の間に半径方向の位置ずれが発生し、この位置ずれ分が流体圧解放 後に各プレート１０ａの残留ひずみとして残ることから、初回の作動時に比べて ２回目以降の作動時ではディスクバルブ１０の曲げ剛性が低下し、これにより、 減衰力特性が低下する方向に変動する。尚、図５は、初回作動時と２回目以降 の作動時のピストン速度に対する減衰力特性の変動を示している。That is, as shown in FIG. 4B, when the disc valve 10 is bent by receiving fluid pressure in the valve opening direction, the disc valve 10 bends with the outer peripheral portion of the sandwiching member 12 having a small diameter as a bending fulcrum. . Since the bending fulcrum is sandwiched between the sandwiching members 11 and 12, radial stresses σ T and σ C in opposite directions are generated on the upper surface and the lower surface of each plate 10a at this portion. Due to the stress, a positional displacement in the radial direction occurs between the surfaces of the plates 10a that abut each other, and this positional displacement remains as a residual strain of each plate 10a after the fluid pressure is released. During the second and subsequent actuations, the flexural rigidity of the disc valve 10 decreases, which causes the damping force characteristics to decrease. Note that FIG. 5 shows the fluctuation of the damping force characteristic with respect to the piston speed during the first operation and during the second and subsequent operations.
【０００６】 本考案は、上述の問題に着目して成されたもので、初回作動時と２回目以降の 作動時における減衰力特性の変動を防止もしくは抑制することができる緩衝器を 提供することを各請求項共通の目的としている。[0006] The present invention was made by focusing on the above-mentioned problems, and it is possible that the first operation and the second and subsequent operations are performed. A shock absorber that can prevent or suppress fluctuations in damping force characteristics during operation It is the common purpose of each claim to provide.
【０００７】[0007]
本考案では、ディスクバルブの各プレートの表面のうちで、挟持部材に挟まれ ることで相互に圧接される部位を、プレート表面の他の部位よりも粗面に形成す ることにより上記目的を達成するようにした。 According to the present invention, the surface of each plate of the disc valve is sandwiched between the sandwiching members. Form the parts that are pressed against each other by a rougher surface than other parts of the plate surface. By doing so, the above object was achieved.
【０００８】 即ち、本考案請求項１記載の緩衝器では、複数枚のプレートを重ねて構成され たディスクバルブが、その一部を２つの挟持部材間に挟持されて固定された緩衝 器において、前記ディスクバルブの各プレートの表面のうちで、挟持部材に挟ま れることで相互に圧接される部位を、プレート表面の他の部位よりも粗面に形成 した。[0008] That is, the shock absorber according to claim 1 of the present invention is configured by stacking a plurality of plates. A shock absorber in which a disc valve is fixed by sandwiching a part of it between two clamping members. Of the plate of the disc valve, the plate is clamped by a clamping member. The surface that is pressed against each other by forming a rougher surface than other parts of the plate surface did.
【０００９】 さらに、本考案請求項２記載の緩衝器では、上記構成に加え、前記挟持部材の うちでディスクバルブの開弁撓み方向側に位置する挟持部材のディスクバルブに 当接する当接面を、両挟持部材により挟持する範囲よりもディスクバルブの撓み 先端方向に突出させて形成した。[0009] Further, in the shock absorber according to claim 2 of the present invention, in addition to the above configuration, For the disc valve of the holding member located on the side of the disc valve bending direction of the disc valve Deflection of the disc valve beyond the range where the abutting surface that abuts is clamped by both clamping members. It was formed so as to project in the tip direction.
【００１０】[0010]
本考案の緩衝器では、ディスクバルブが開弁方向に流体圧を受けた場合、この ディスクバルブの各プレートは、開弁方向側に位置する挟持部材の圧接部分外周 入を撓み支点として開弁する方向に撓む。この場合、各プレートにあっては、そ の上面と下面とではそれぞれ反対方向の半径方向応力が発生する。従って、この 両応力により、各プレートはこの位置において上面側と下面側とで半径方向に位 置ずれを生じさせようとするが、各プレートにおける挟持部材に挟持されて圧接 される部位の表面を粗面に形成していることで、プレート間に大きな摩擦抵抗が 生じて、この半径方向の位置ずれが阻止もしくは抑制される。 In the shock absorber of the present invention, when the disc valve receives fluid pressure in the opening direction, Each plate of the disc valve is the outer circumference of the pressure contact part of the clamping member located on the valve opening side. It bends in the direction of opening the valve with the inlet as the fulcrum. In this case, for each plate, Radial stresses in opposite directions are generated on the upper surface and the lower surface. Therefore, this Due to both stresses, each plate is positioned radially at this position on the upper surface side and the lower surface side. Displacement is attempted, but it is clamped by the clamping members on each plate By forming the surface of the part to be roughened, a large frictional resistance between the plates As a result, this positional deviation in the radial direction is prevented or suppressed.
【００１１】 このようであるから、初回作動時と２回目以降の作動時との間の減衰力特性変 動が防止もしくは抑制できる。[0011] Because of this, the damping force characteristic changes between the first operation and the second and subsequent operations. Motion can be prevented or suppressed.
【００１２】 また、請求項２記載の緩衝器では、ディスクバルブの開弁時に撓む方向側の挟 持部材のディスクバルブに当接する当接面は、両挟持部材で挟持している範囲よ りもディスクバルブの撓み先端方向に突出させている。従って、ディスクバルブ の開弁時における各プレートの撓み支点が、両挟持部材により挟持している部分 から突出した当接面の先端となり、この撓み支点の部分が挟持されていないこと から、各プレートの撓み支点部分において上面と下面にそれぞれ反対方向発生す る半径方向応力が小さくなる。よって、残留ひずみの発生がさらに防止もしくは 抑制され、初回作動時と２回目以降の作動時との間の減衰力特性変動の防止性能 がさらに向上する。[0012] Further, in the shock absorber according to the second aspect of the invention, the disc valve on the side that bends when the valve is opened is used. The contact surface of the holding member that comes into contact with the disc valve is different from the range between the two holding members. Rimo is also projected in the direction of the bending tip of the disc valve. Therefore, the disc valve The bending fulcrum of each plate when the valve is opened is the portion clamped by both clamping members. Being the tip of the abutment surface that protrudes from this, the part of this bending fulcrum is not pinched Therefore, in the bending fulcrum part of each plate, it is generated in the opposite direction on the upper surface and the lower surface. Radial stress is reduced. Therefore, the occurrence of residual strain can be further prevented or Suppressed, prevention performance of damping force characteristic fluctuation between the first operation and the second and subsequent operations Is further improved.
【００１３】 尚、上述のように、撓み支点となる位置が挟持部分よりも撓み先端側の位置と なるから、各プレートの挟持部材により挟持される部分の撓み方向は、撓み支点 の位置の撓み方向とは逆方向となる。また、この挟持される部分における撓み量 は極僅かとなり、この部位で発生する半径方向応力も極小さくなるため、各プレ ートのこの部位をの表面を粗面に形成していることで生じる摩擦抵抗により、半 径方向の位置ずれ発生を十分に阻止することができる。[0013] As described above, the position of the bending fulcrum is closer to the bending tip than the pinching portion. Therefore, the bending direction of the portion of each plate clamped by the clamping member is The direction is opposite to the bending direction of the position. In addition, the amount of bending in this sandwiched portion Is extremely small, and the radial stress generated at this site is also extremely small. Due to the frictional resistance created by forming a rough surface on this part of the It is possible to sufficiently prevent the displacement in the radial direction.
【００１４】[0014]
以下、本考案の実施例を図面により詳述する。尚、この実施例は請求項２に対 応している。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, this embodiment corresponds to claim 2. I am responding.
【００１５】 図１は、本考案実施例の緩衝器の要部を示す断面図である。この図において、 １はピストンを示していて、このピストン１は、ピストンロッド２の先端に取り 付けられている。即ち、ピストンロッド２に対して、ピストン１，伸側ディスク バルブ３，ワッシャ４，カラー５を順次装着し、最後にナット６で締結して取り 付けられている。さらに詳述すると、前記ピストン１の下部室Ｂ側である環状下 端面には、内周ボス部１ａと外周シート面１ｂを残して環状溝１ｃが形成されて いる。そして、前記環状溝１ｃは、ピストン１に上下方向に穿設された連通孔１ ｄによりピストン１の上部室Ａ側に連通されている。[0015] FIG. 1 is a sectional view showing an essential part of a shock absorber according to an embodiment of the present invention. In this figure, Reference numeral 1 denotes a piston, which is attached to the tip of a piston rod 2. It is attached. That is, with respect to the piston rod 2, the piston 1 and the extension side disc Install the valve 3, washer 4 and collar 5 in order, and finally tighten the nut 6 to remove. It is attached. More specifically, the annular lower side of the lower chamber B side of the piston 1 An annular groove 1c is formed on the end surface, leaving the inner peripheral boss portion 1a and the outer peripheral seat surface 1b. There is. The annular groove 1c has a communication hole 1 formed in the piston 1 in the vertical direction. It is connected to the upper chamber A side of the piston 1 by d.
【００１６】 前記ディスクバルブ３は、３枚の独立した環状プレート３ａを重ね合わせて形 成され、その外周を外周シート面１ｂに当接し、かつ、内周をボス部１ａとワッ シャ４との間で挟持された状態で固定されている。即ち、前記ピストン１とワッ シャ４で請求範囲の挟持部材を構成している。そして、前記ディスクバルブ３の 開弁時の撓み方向側の挟持部材であるワッシャ４の外径ｄ2 がボス部１ａの外径 ｄ1 よりも大径（φｄ1 ＜φｄ2 ）に形成されている。The disc valve 3 is formed by stacking three independent annular plates 3 a, the outer periphery of which is in contact with the outer peripheral sheet surface 1 b, and the inner periphery is between the boss portion 1 a and the washer 4. It is fixed in a sandwiched state. That is, the piston 1 and the washer 4 constitute a holding member within the scope of the claims. The outer diameter d 2 of the washer 4, which is a holding member on the bending direction side when the disc valve 3 is opened, is formed to be larger than the outer diameter d 1 of the boss portion 1a (φd 1 <φd 2 ). There is.
【００１７】 また、各環状プレート３ａにおける内周の被挟持部分、即ち、図２に示すよう に、各環状プレート３ａの内径である寸法ｄ0 からボス部１ａの外径の寸法ｄ1 までの範囲の上下両面が、エッチングもしくはショットブラストによって粗面に 形成されいる。また、同じくボス部１ａの下面及びワッシャ４の上面も粗面に形 成されている。Further, the clamping portion of the inner circumference of each annular plate 3a, i.e., as shown in FIG. 2, from the dimension d 0 is the inner diameter of each annular plate 3a to a size d 1 of the outer diameter of the boss portion 1a The upper and lower surfaces of the range are roughened by etching or shot blasting. Similarly, the lower surface of the boss portion 1a and the upper surface of the washer 4 are also roughened.
【００１８】 次に、実施例の作用について説明する。[0018] Next, the operation of the embodiment will be described.
【００１９】 本実施例の緩衝器では、ピストン１の伸行程において、上部室Ａの液圧上昇に 伴い、上部室Ａの流体が連通孔１ｄを通って環状溝１ｃ内に流入し、そこからデ ィスクバルブ３を開弁して下部室Ｂ側に流通する。そして、ディスクバルブ３が 開弁方向に流体圧を受けた場合、図３（イ）に示すように、該ディスクバルブ３ は、開弁方向側の挟持部材を構成するワッシャ４の外周部を外側撓み支点Ｅとし て下方向に撓み、この時、該外側撓み支点Ｅ部分において各環状プレート３ａの 上面と下面とにそれぞれ反対方向の半径方向応力が発生する。そして、各環状プ レート３ａは、この外側撓み支点Ｅ部分を挟持されていないため、撓み支点Ｅに おいて発生する応力は極めて小さな値となり［同図３（ロ）参照］、しかも、上 述のように、この位置は挟持されていないことから、流体圧が解除された後でも 残留ひずみが発生することはない。[0019] In the shock absorber of the present embodiment, the fluid pressure in the upper chamber A rises during the stroke of the piston 1. Along with this, the fluid in the upper chamber A flows into the annular groove 1c through the communication hole 1d, and from there, the fluid is discharged. The disc valve 3 is opened to flow to the lower chamber B side. And the disc valve 3 When a fluid pressure is applied in the valve opening direction, as shown in FIG. Is the outer deflection fulcrum E of the outer peripheral portion of the washer 4 forming the holding member on the valve opening direction side. And bends downward at this time, and at this time, at the outer bending fulcrum E portion, Radial stresses in opposite directions are generated on the upper surface and the lower surface. And each loop Since the rate 3a does not sandwich this outer bending fulcrum E portion, The stress generated at this time is extremely small [see Fig. 3 (b)], and As mentioned above, this position is not clamped, so even after the fluid pressure is released. No residual strain occurs.
【００２０】 また、前記ワッシャ４の外周部を外側撓み支点Ｅとする下方向へのディスクバ ルブ３の撓みによって、小径側挟持部材であるボス部１ａの外周部を内側撓み支 点Ｆとしてディスクバルブ３が上方向の撓みを生じるが、この撓み量は僅かであ るため内側撓み支点Ｆにおける半径方向応力σT2，σC2も小さく、しかも、前記 粗面に形成された各圧接面の摩擦係数μが大きいため、内側撓み支点Ｆ部分にお いては半径方向のずれが生じることはない。図３（ロ）は、各環状プレート３ａ の各部に作用する応力の分布状態を示しており、実線で示すのが本実施例の応力 で、破線で示すのが従来例の応力である。この図に示すように、固定部である内 側撓み支点Ｆ部分の応力が従来例に比べて大幅に少なくなっている。Further, due to the downward deflection of the disc valve 3 with the outer peripheral portion of the washer 4 as the outer deflection fulcrum E, the outer peripheral portion of the boss portion 1a, which is the small-diameter side sandwiching member, is used as the inner deflection fulcrum F for the disc valve 3. Causes an upward bending, but the amount of this bending is small, so the radial stresses σ T2 and σ C2 at the inner bending fulcrum F are also small, and the friction coefficient μ of each pressure contact surface formed on the rough surface is Since it is large, the radial deviation does not occur at the inner bending fulcrum F portion. FIG. 3B shows the distribution of the stress acting on each part of each annular plate 3a. The solid line shows the stress of this embodiment, and the broken line shows the stress of the conventional example. As shown in this figure, the stress at the inner bending fulcrum F, which is the fixed portion, is significantly smaller than that in the conventional example.
【００２１】 尚、前記半径方向のずれの発生を阻止するためには、 σT2（またはσC2）≦μ・Ｐ （Ｐは内側撓み支点Ｆ部分に作用する面圧） の条件を満たす必要がある。In order to prevent the occurrence of the radial deviation, it is necessary to satisfy the condition of σ T2 (or σ C2 ) ≦ μ · P (P is a surface pressure acting on the inward bending fulcrum F portion). is there.
【００２２】 以上説明してきたように、この実施例の緩衝器では、各プレート３ａの挟持さ れる部分に形成した粗面どうしの摩擦抵抗によって半径方向の位置ずれを阻止で きるので、初回作動時と２回目以降の作動時における減衰力特性の変動を防止す ることができ、さらに、ディスクバルブ３の撓み方向側の挟持部材であるワッシ ャ４の外径を、もう一方の挟持部材であるボス部１ａの外径より大きく形成する とで、撓み支点Ｅの位置を挟持する範囲よりも撓み先端方向に離して配置したた め、撓み支点Ｅにおける残留ひずみの発生を完全に防止すると共に、挟持部分に おける各環状プレート３ａの撓み量を極めて少なくできるので、前記減衰力特性 の変動防止効果をさらに高めることができるという特徴を有している。[0022] As described above, in the shock absorber of this embodiment, the plates 3a are clamped. The frictional resistance between the rough surfaces formed on the Therefore, it is possible to prevent fluctuations in damping force characteristics during the first operation and during the second and subsequent operations. In addition, a washer which is a holding member on the bending direction side of the disc valve 3 is provided. The outer diameter of the armor 4 is formed larger than the outer diameter of the boss portion 1a which is the other holding member. And the position of the bending fulcrum E is located farther in the bending tip direction than the sandwiching range. Therefore, the generation of residual strain at the bending fulcrum E is completely prevented, and Since the amount of bending of each annular plate 3a in the The feature is that the effect of preventing the fluctuation can be further enhanced.
【００２３】 以上、本考案の実施例を図面により詳述してきたが、本考案の具体的な構成は これらの実施例に限られるものではない。例えば、実施例では、伸側のディスク バルブに適用したが、圧側のディスクバルブにも適用することができる。また、 実施例ではディスクバルブの内周部分を挟持した例を示したが、ディスクバルブ の外周部分を挟持するものにも適用することができる。[0023] The embodiment of the present invention has been described in detail above with reference to the drawings. It is not limited to these examples. For example, in the embodiment, the extension side disc Although it is applied to the valve, it can also be applied to the pressure side disc valve. Also, In the embodiment, the example in which the inner peripheral portion of the disc valve is sandwiched is shown. It can also be applied to those that sandwich the outer peripheral portion of the.
【００２４】[0024]
以上説明してきたように、本考案の緩衝器では、ディスクバルブの各プレート の表面のうちで、挟持部材に挟まれることで相互に圧接される部位を、プレート 表面の他の部位よりも粗面に形成した手段としたため、各プレートの挟持される 部分どうしの摩擦抵抗が高まって、各プレートのこの被挟持部分どうしが半径方 向に位置ずれするのを阻止もしくは抑制して、初回作動時と２回目以降の作動時 における減衰力特性の変動を防止もしくは抑制することができるという効果が得 られる。 As described above, in the shock absorber of the present invention, each plate of the disc valve is The part of the surface of the plate that is pressed against each other by being sandwiched by the sandwiching member is the plate. The plates are sandwiched because the means is made rougher than other parts of the surface. The frictional resistance between the parts increases, and the sandwiched parts of each plate are radial. Prevents or suppresses misalignment in the opposite direction, and during the first operation and the second and subsequent operations The effect that it is possible to prevent or suppress the fluctuation of the damping force characteristics in To be
【００２５】 また、本考案請求項２記載の緩衝器では、挟持部材のうちでディスクバルブの 開弁撓み方向側に位置する挟持部材のディスクバルブに当接する当接面を、両挟 持部材により挟持する範囲よりもディスクバルブの撓み先端方向に突出させて形 成した手段としたため、被挟持部分の応力を少なくでき、前記減衰力特性の変動 防止効果をさらに高めることができる。[0025] Further, in the shock absorber according to claim 2 of the present invention, among the holding members, the disc valve The contact surface of the holding member located on the valve opening deflection direction side that contacts the disk valve is The shape is made by projecting in the bending tip direction of the disc valve beyond the range where it is clamped by the holding member. Since it is a means that has been made, it is possible to reduce the stress in the clamped part, fluctuation of the damping force characteristics The prevention effect can be further enhanced.
【図面の簡単な説明】[Brief description of drawings]
【図１】本考案実施例の緩衝器の要部を示す断面図であ
る。FIG. 1 is a sectional view showing a main part of a shock absorber according to an embodiment of the present invention.
【図２】実施例の環状プレートを示す平面図である。FIG. 2 is a plan view showing an annular plate of an embodiment.
【図３】（イ）は実施例の作用説明図、（ロ）は各環状
プレートの各部に作用する応力分布状態を（イ）に対応
して示す図である。FIG. 3A is an explanatory view of the operation of the embodiment, and FIG. 3B is a view showing a stress distribution state acting on each portion of each annular plate, corresponding to FIG.
【図４】従来例緩衝器の構成及び作用説明図である。FIG. 4 is a diagram illustrating the configuration and operation of a conventional shock absorber.
【図５】従来例緩衝器のピストン速度に対する減衰力特
性の変動を示す図である。FIG. 5 is a diagram showing variations in damping force characteristics of a conventional shock absorber with respect to a piston speed.
１ ピストン（挟持部材） ３ ディスクバルブ ３ａ 環状プレート ４ ワッシャ（挟持部材） 1 piston (clamping member) 3 disc valves 3a annular plate 4 Washer (clamping member)
Claims (2)
ィスクバルブが、その一部を２つの挟持部材間に挟持さ
れて固定された緩衝器において、 前記ディスクバルブの各プレートの表面のうちで、挟持
部材に挟まれることで相互に圧接される部位を、プレー
ト表面の他の部位よりも粗面に形成したことを特徴とす
る緩衝器。1. A shock absorber in which a disc valve constituted by stacking a plurality of plates is fixed by sandwiching a part of the disc valve between two sandwiching members, wherein a surface of each plate of the disc valve is fixed. A shock absorber characterized in that a portion which is pressed against each other by being sandwiched by the sandwiching member is formed to be rougher than other portions of the plate surface.
開弁撓み方向側に位置する挟持部材のディスクバルブに
当接する当接面を、両挟持部材により挟持する範囲より
もディスクバルブの撓み先端方向に突出させて形成した
ことを特徴とする請求項１記載の緩衝器。2. A bending tip direction of the disc valve, of a contacting surface of the holding member located on the side of the valve valve bending direction of the disc valve that comes into contact with the disc valve, relative to a range in which the holding members sandwich the holding member. The shock absorber according to claim 1, wherein the shock absorber is formed so as to protrude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP81291U JPH053677U (en) | 1991-01-16 | 1991-01-16 | Shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP81291U JPH053677U (en) | 1991-01-16 | 1991-01-16 | Shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH053677U true JPH053677U (en) | 1993-01-19 |
Family
ID=11484094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP81291U Pending JPH053677U (en) | 1991-01-16 | 1991-01-16 | Shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH053677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3025999U (en) * | 1995-12-18 | 1996-06-25 | 欽一 山本 | Safety three-point stepladder |
| JP2003090380A (en) * | 2001-09-18 | 2003-03-28 | Kayaba Ind Co Ltd | Shock absorber having leaf valve and method of assembling leaf valve to shock absorber |
-
1991
- 1991-01-16 JP JP81291U patent/JPH053677U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3025999U (en) * | 1995-12-18 | 1996-06-25 | 欽一 山本 | Safety three-point stepladder |
| JP2003090380A (en) * | 2001-09-18 | 2003-03-28 | Kayaba Ind Co Ltd | Shock absorber having leaf valve and method of assembling leaf valve to shock absorber |
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