JPH0893824A - Bottom piece for hydraulic shock absorber - Google Patents
Bottom piece for hydraulic shock absorberInfo
- Publication number
- JPH0893824A JPH0893824A JP23380494A JP23380494A JPH0893824A JP H0893824 A JPH0893824 A JP H0893824A JP 23380494 A JP23380494 A JP 23380494A JP 23380494 A JP23380494 A JP 23380494A JP H0893824 A JPH0893824 A JP H0893824A
- Authority
- JP
- Japan
- Prior art keywords
- bottom piece
- positioning
- shock absorber
- leg
- outer tube
- 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.)
- Granted
Links
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、油圧緩衝器用ボトムピ
ースの製造方法に関し、特に、位置決め機能を確保した
上で、材料歩留りを向上しつつ、プレス成形による簡易
な加工を確保することができる油圧緩衝器用ボトムピー
スの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a bottom piece for a hydraulic shock absorber, and in particular, it is possible to secure a positioning function, improve material yield, and ensure simple processing by press molding. The present invention relates to a method for manufacturing a bottom piece for a hydraulic shock absorber.
【0002】[0002]
【従来の技術】ダンパーシリンダをアウターチューブの
ボトム部に支える油圧緩衝器用ボトムピースを製造する
方法として、平板からプレス成形によって鍔付き円筒を
なすハット型成形体を作り、このハット型成形体の鍔部
の一部をその円筒部と反対側に折曲げて脚部を形成する
方法(特公昭58−8927号公報)が知られている。
この製造方法により、焼結成形によることなく簡易なプ
レス加工によって、脚部の間を流路とするボトムピース
の成形が可能となり、別体の蓋部材によってアウターチ
ューブの端部を閉塞しつつ、同蓋部材によってダンパー
シリンダを位置決めすることにより、ダンパーシリンダ
内設型の油圧緩衝器を構成することができる。2. Description of the Related Art As a method for manufacturing a bottom piece for a hydraulic shock absorber that supports a damper cylinder on a bottom portion of an outer tube, a hat type molded body having a flanged cylinder is formed by press molding from a flat plate, and the hat type molded body is manufactured. There is known a method of bending a part of the portion to the side opposite to the cylindrical portion to form a leg portion (Japanese Patent Publication No. 58-8927).
By this manufacturing method, it is possible to form a bottom piece with a flow path between the leg portions by a simple press working without using sintering molding, while closing the end portion of the outer tube with a separate lid member, By positioning the damper cylinder with the lid member, the damper cylinder internal type hydraulic shock absorber can be configured.
【0003】一方、図7(a)の従来の薄肉アウターチ
ューブによるボトム構造の断面図に示すように、上記蓋
部材を用いることなく、薄肉のアウターチューブ51と
一体のボトム部51aにダンパーシリンダ52を内設す
る場合には、プレス加工によって簡易に成形できるバル
ブガイド53に位置決め用の張出し部53aを形成し、
このバルブガイド53を用いてボトムバルブ54を構成
するすることにより、ダンパーシリンダ52の位置決め
が可能となり、また、ダンパーシリンダ52側の油室S
1とその外側の環状油溜室S2との間は、ダンパーシリ
ンダ52を支えるボトムピース58の脚部58aの隙間
Sによって流路が確保される。On the other hand, as shown in the sectional view of the bottom structure of the conventional thin outer tube of FIG. 7 (a), the damper cylinder 52 is attached to the bottom portion 51a integral with the thin outer tube 51 without using the lid member. When the valve is internally provided, a positioning protrusion 53a is formed on the valve guide 53 that can be easily formed by press working.
By configuring the bottom valve 54 using the valve guide 53, the damper cylinder 52 can be positioned, and the oil chamber S on the damper cylinder 52 side can be positioned.
A flow path is secured between 1 and the annular oil reservoir S2 on the outside thereof by the gap S of the leg portion 58a of the bottom piece 58 supporting the damper cylinder 52.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、同図
(b)のバルブガイドの底面図に示すとおり、上記バル
ブガイド53の周縁部をなす位置決め用の張出し部53
aは、プレス加工によって簡易に成形することが可能な
バルブガイド53の材料取りにおいてその歩留りを悪化
させ、材料コストに関して不利が避けられず、その改善
が望まれている。However, as shown in the bottom view of the valve guide of FIG. 2B, the overhanging portion 53 for positioning forming the peripheral portion of the valve guide 53 is formed.
A deteriorates the yield in the material removal of the valve guide 53 that can be easily molded by press working, and disadvantages in terms of material cost cannot be avoided, and improvement thereof is desired.
【0005】[0005]
【課題を解決するための手段】上記課題を解決すべく本
発明は、鍔付き円筒をなす中間成形体を平板からプレス
成形し、この中間成形体の鍔部の一部をその円筒部と反
対側に折曲げた脚部を備え、この脚部を介してダンパー
シリンダをアウターチューブのボトム部に支えるボトム
ピースにおいて、前記中間成形体の鍔部は、アウターチ
ューブの径方向に対する位置決め用の張出し部と前記脚
部用の突出部とから構成した。前記脚部の先端には、ア
ウターチューブのボトム部に沿って曲げた当接部を形成
するのが好ましく、前記平板は正方形とし、その角部を
前記脚部用の突出部とすることが好ましく、また、前記
脚部用の突出部の先端を前記置決め用の張出し部とする
ことが好ましい。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention press-molds an intermediate compact which is a flanged cylinder from a flat plate, and a part of the flange of this intermediate compact is opposite to the cylindrical part. In a bottom piece that has a leg portion that is bent to the side and that supports the damper cylinder to the bottom portion of the outer tube via this leg portion, the flange portion of the intermediate molded body is a protruding portion for positioning in the radial direction of the outer tube. And a protrusion for the leg. It is preferable that an abutting portion bent along the bottom portion of the outer tube is formed at the tip of the leg portion, the flat plate is square, and its corner portion is preferably a protruding portion for the leg portion. Further, it is preferable that the tip end of the protrusion for the leg is used as the projecting portion for positioning.
【0006】[0006]
【作用】中間成形体の鍔部の形状は、位置決め用の張出
し部と脚部用の突出部を一工程で共に打ち抜いて成形さ
れることから、その位置決め用の張出し部は特別な材料
取りおよび加工を要することなく脚部用部材の周縁の部
材片を用いて脚部形成の工程において形成され、その位
置決め用の張出し部はアウターチューブの径方向に対す
るダンパーシリンダの移動を防止する。The flange portion of the intermediate molded body is formed by punching out the protruding portion for positioning and the protruding portion for the leg together in one step. Therefore, the protruding portion for positioning has a special material removal and It is formed in the step of forming the leg portion by using the peripheral member pieces of the leg member without any processing, and the protruding portion for positioning thereof prevents the damper cylinder from moving in the radial direction of the outer tube.
【0007】脚部の先端を当接部とする場合にはアウタ
ーチューブのボトム部に沿って安定した当接を確保し、
アウターチューブのボトム部が円錐面をなす場合にはダ
ンパーシリンダの位置決め作用をなし、正方形の平板の
角部を脚部とする場合には材料取りの高歩留り化が可能
となり、さらに、脚部先端が位置決め部をなす場合に
は、鍔部周縁の曲げ加工位置の特定を要することなく脚
部と位置決め部が形成され、加工負荷と重量の低減が可
能となる。When the tips of the legs are used as the contact portions, a stable contact is secured along the bottom portion of the outer tube,
When the bottom part of the outer tube has a conical surface, it functions as a damper cylinder positioning function, and when the corners of a square flat plate are used as the legs, it is possible to increase the yield of material removal. In the case of forming the positioning portion, the leg portion and the positioning portion are formed without the need to specify the bending processing position on the periphery of the collar portion, and the processing load and weight can be reduced.
【0008】[0008]
【実施例】以下に本発明の実施例を添付図面に基づいて
説明する。図1は本発明の第1実施例に係る油圧緩衝器
のボトム構造を示す断面図、図2は同油圧緩衝器のボト
ムピースの底面図である。Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a sectional view showing a bottom structure of a hydraulic shock absorber according to a first embodiment of the present invention, and FIG. 2 is a bottom view of a bottom piece of the hydraulic shock absorber.
【0009】油圧緩衝器のボトム部は、アウターチュー
ブ1内にダンパーシリンダ2を設け、このダンパーシリ
ンダ2の端部をボトムピース3によって支える。このボ
トムピース3は上側にバルブガイド4を嵌合し、このバ
ルブガイド4内にチェックバルブ5を上下動可能に備え
て減衰弁を構成する。The bottom portion of the hydraulic shock absorber is provided with a damper cylinder 2 in the outer tube 1, and the end portion of the damper cylinder 2 is supported by the bottom piece 3. The bottom piece 3 is fitted with a valve guide 4 on the upper side thereof, and a check valve 5 is provided in the valve guide 4 so as to be movable up and down to form a damping valve.
【0010】ボトムピース3はその円筒部6の上端を上
記チェックバルブ5のバルブシートとし、円筒部6の下
端に分周して径方向に突出する位置決め用の張出し部7
を備え、この張出し部7の下側を隙間Sとする円弧状の
脚部8…とし、その下端の当接部9の下面においてアウ
ターチューブ1のボトム部1aに当接し、上記隙間Sは
ダンパーシリンダ2内の油室S1とその外側の環状油溜
室S2を連通する。The bottom piece 3 has a cylindrical seat 6 whose upper end serves as a valve seat of the check valve 5 and which is divided into the lower end of the cylindrical part 6 to project a radial projection 7 for positioning.
Is provided, and the lower side of the overhanging portion 7 is an arcuate leg portion 8 having a gap S, which is in contact with the bottom portion 1a of the outer tube 1 at the lower surface of the contact portion 9 at the lower end thereof, and the gap S is a damper. The oil chamber S1 inside the cylinder 2 and the annular oil reservoir chamber S2 on the outside thereof communicate with each other.
【0011】上記ボトムピースの製造方法について説明
する。ボトムピース3は張出し部7と脚部8を展開した
略円板状の形状に板材から打ち抜きによって材料取り
し、プレス成形したハット型成形体の頂部に円孔を打ち
抜き、その周縁をテーパーに成形した鍔付き円筒をなす
中間成形体とし、または、円形板材からプレス成形した
鍔付き円筒をなす中間成形体の鍔部に張出し部7と脚部
8の両突出部を打ち抜き、さらに、脚部8とその先端側
の当接部9を曲げ加工によって成形する。この当接部9
の下面はアウターチューブ1のボトム部1aに沿う傾斜
角に設定する。A method of manufacturing the bottom piece will be described. The bottom piece 3 is obtained by punching out a material from a plate material into a substantially disc-shaped shape in which the overhanging portion 7 and the leg portion 8 are expanded, punching out a circular hole at the top of a press-molded hat-shaped molded product, and forming the peripheral edge into a taper. As an intermediate molded body forming a flanged cylinder, or by punching a protrusion of both the overhanging portion 7 and the leg portion 8 on the flange portion of the intermediate molded body forming a cylindrical body with a collar pressed from a circular plate material, the leg portion 8 And the contact portion 9 on the tip side thereof are formed by bending. This contact part 9
The lower surface of is set to an inclination angle along the bottom portion 1a of the outer tube 1.
【0012】上記中間成形体の鍔部の形状は、位置決め
用の張出し部7と脚部用の突出部8を一工程で共に打ち
抜いて形成されることから、その位置決め用の張出し部
7は特別な材料取りおよび加工を要することなく脚部8
…の間の隙間Sに対応する部材片により脚部の曲げ工程
において形成される。Since the flange portion of the intermediate molded body is formed by punching out the positioning overhanging portion 7 and the leg protruding portion 8 in one step, the positioning overhanging portion 7 is special. Legs 8 without the need for special material removal and processing
It is formed in the step of bending the leg portion by the member piece corresponding to the gap S between the.
【0013】このように形成された位置決め用の張出し
部7はアウターチューブ1の径方向に対するダンパーシ
リンダ2の移動を防止し、また、脚部8の先端の当接部
9は、アウターチューブ1のボトム部1aに沿って安定
して当接することから、ダンパーシリンダ2の安定配置
が確保され、また、上記ボトム部1aが円錐面をなす場
合にはダンパーシリンダ2の位置決め作用をなす。した
がって、本発明に係る油圧緩衝器用ボトムピースは、位
置決め機能を確保した上で、材料歩留りを向上しつつ、
プレス成形による簡易な加工を確保することができる。The positioning overhanging portion 7 thus formed prevents the damper cylinder 2 from moving in the radial direction of the outer tube 1, and the abutting portion 9 at the tip of the leg portion 8 of the outer tube 1 extends. Since the damper cylinder 2 is stably abutted along the bottom portion 1a, a stable arrangement of the damper cylinder 2 is ensured, and when the bottom portion 1a has a conical surface, the damper cylinder 2 is positioned. Therefore, the bottom piece for a hydraulic shock absorber according to the present invention, while ensuring the positioning function, while improving the material yield,
It is possible to secure simple processing by press molding.
【0014】図3、4は第2実施例に係るボトムピース
の組付け断面図とその加工手順図である。このボトムピ
ース13は、その材料取りによって脚部18の先端に大
きな当接部19を備えるものであり、その製造手順は、
正方形の板材の各辺部に位置決め用の張出し部17を配
置し、また、板材の各角部を脚部18用の突出部とした
形状に打ち抜き、この角板をプレス成形によって鍔付き
円筒をなす成形体(A)とし、その円筒部16の頂部に
円孔16aを打ち抜き(B)、この円孔16aの周縁を
テーパー16bに成形(C)する。この中間成形体の鍔
部は、同図(c)の底面図のように、アウターチューブ
の径方向に対する位置決め用の張出し部17と脚部18
用の突出部とを共に打ち抜いた形状をなし、その脚部1
8用の突出部を下方に曲げ(D),(d)、更にその端
部を内側に曲げて当接部19を形成(E),(e)す
る。3 and 4 are a sectional view of the bottom piece according to the second embodiment and a working procedure thereof. This bottom piece 13 is provided with a large contact portion 19 at the tip of the leg portion 18 by taking the material thereof, and the manufacturing procedure is as follows.
A bulging portion 17 for positioning is arranged on each side portion of the square plate material, and each corner portion of the plate material is punched out into a shape to be a projection for the leg portion 18, and this square plate is press-molded to form a flanged cylinder. As a molded body (A), a circular hole 16a is punched out at the top of the cylindrical portion 16 (B), and the peripheral edge of the circular hole 16a is molded into a taper 16b (C). As shown in the bottom view of FIG. 3C, the flange of the intermediate molded body has a protruding portion 17 and a leg portion 18 for positioning in the radial direction of the outer tube.
The leg part 1
The protrusions for 8 are bent downward (D) and (d), and the ends thereof are bent inward to form contact portions 19 (E) and (e).
【0015】上記ボトムピース13は、正方形の平板の
角部を脚部18とすることによって高歩留りの材料取り
が可能となり、脚部18の先端の当接部19はアウター
チューブのボトム部に沿って安定した当接を確保し、ア
ウターチューブのボトム部が円錐面をなす場合にはダン
パーシリンダの位置決め作用をなす。In the bottom piece 13, the corners of a square flat plate are used as the legs 18 to enable high-yield material removal, and the abutting portions 19 at the tips of the legs 18 are along the bottom portion of the outer tube. And a stable contact is ensured, and when the bottom portion of the outer tube has a conical surface, the damper cylinder is positioned.
【0016】図5、6は第3実施例に係るボトムピース
の組付け断面図とその加工手順図である。このボトムピ
ース23は、脚部28が位置決めを兼ねるものであり、
その製造手順は、正方形の板材の各角部を位置決め用の
張出し部27をも兼ねた形状の脚部28用の突出部とし
て打ち抜き、この角板をプレス成形によって鍔付き円筒
をなす成形体(A)とし、その円筒部26の頂部に円孔
26aを打ち抜き(B)、この円孔26aの周縁をテー
パー26bに成形(C)する。この中間成形体の鍔部
は、同図(c)の底面図のように、位置決め用の張出し
部27を兼ねた脚部28用の突出部を打ち抜いた形状を
なし、この脚部28用の突出部を下方に曲げ(D),
(d)、更にその端部を外側に曲げて当接部29を形成
(E),(e)し、その外周側を位置決め用の張出し部
27とする。5 and 6 are a sectional view of the bottom piece according to the third embodiment and a working procedure thereof. In this bottom piece 23, the legs 28 also serve as positioning.
The manufacturing procedure is such that each corner of a square plate material is punched out as a protrusion for a leg portion 28 having a shape that also serves as an overhanging portion 27 for positioning, and this square plate is formed into a cylinder with a collar by press molding ( A), a circular hole 26a is punched out at the top of the cylindrical portion 26 (B), and the peripheral edge of the circular hole 26a is formed into a taper 26b (C). As shown in the bottom view of FIG. 2C, the flange of this intermediate molded body has a shape in which a protruding portion for a leg portion 28 that also serves as a protruding portion 27 for positioning is punched out. Bend the protrusion downward (D),
(D) Further, the end portion is bent outward to form the contact portion 29 (E), (e), and the outer peripheral side thereof is used as the overhanging portion 27 for positioning.
【0017】上記ボトムピースは、脚部28が位置決め
の張出し部27を兼ね、鍔部周縁の曲げ加工位置の特定
を要することなく位置決め兼用の脚部28を形成するこ
とができ、加工負荷と重量の低減が可能となる。In the above bottom piece, the leg portion 28 also serves as the overhanging portion 27 for positioning, and the leg portion 28 also for positioning can be formed without the need to specify the bending processing position on the periphery of the collar portion. Can be reduced.
【0018】[0018]
【発明の効果】以上に説明したように本発明によれば、
鍔付き円筒をなす中間成形体を平板からプレス成形し、
この中間成形体の鍔部の形状が位置決め用の張出し部と
脚部用の突出部を一工程で共に打ち抜いて形成されるこ
とから、その位置決め用の張出し部は特別な材料取りお
よび加工を要することなく脚部用部材の周縁の部材片に
より脚部の曲げ工程において形成され、その位置決め用
の張出し部はアウターチューブの径方向に対するダンパ
ーシリンダの移動防止作用をなす。したがって、本発明
に係る油圧緩衝器用ボトムピースは、位置決め機能を確
保した上で、材料歩留りを向上しつつ、プレス成形によ
る簡易な加工を確保することができ、油圧緩衝器のボト
ム構造の簡易化を図ることができる。According to the present invention as described above,
Press-molding an intermediate molded body forming a flanged cylinder from a flat plate,
Since the flange portion of the intermediate molded body is formed by punching out the positioning protrusion and the leg protrusion in a single process, the positioning protrusion requires special material removal and processing. Without being formed in the bending process of the leg portion by the peripheral member pieces of the leg portion member, and the overhanging portion for positioning serves to prevent the damper cylinder from moving in the radial direction of the outer tube. Therefore, the bottom piece for a hydraulic shock absorber according to the present invention can secure a positioning function and, at the same time, can improve the material yield and ensure a simple processing by press molding, thereby simplifying the bottom structure of the hydraulic shock absorber. Can be achieved.
【0019】さらに加えて、脚部の先端を当接部とする
場合にはアウターチューブのボトム部に沿って安定した
当接を確保し、アウターチューブのボトム部が円錐面を
なす場合にはダンパーシリンダの位置決め作用をなし、
正方形の平板の角部を脚部とする場合には材料取りの高
歩留り化が可能となり、また、脚部先端が位置決め部を
なす場合には、鍔部周縁の曲げ加工位置の特定を要する
ことなく脚部と位置決め部が形成され、加工負荷と重量
の低減が可能となる。In addition, a stable contact is secured along the bottom portion of the outer tube when the tips of the legs are used as the contact portion, and a damper is used when the bottom portion of the outer tube has a conical surface. Positions the cylinder,
When the corners of a square flat plate are used as legs, it is possible to achieve a high material yield, and when the tips of the legs are positioning parts, it is necessary to specify the bending position of the flange periphery. Instead, the leg portion and the positioning portion are formed, and the processing load and the weight can be reduced.
【図1】本発明の第1実施例に係る油圧緩衝器のボトム
構造を示す断面図FIG. 1 is a sectional view showing a bottom structure of a hydraulic shock absorber according to a first embodiment of the present invention.
【図2】同油圧緩衝器のボトムピースの底面図FIG. 2 is a bottom view of a bottom piece of the hydraulic shock absorber.
【図3】第2実施例に係るボトムピースの組付け断面図FIG. 3 is an assembled sectional view of a bottom piece according to a second embodiment.
【図4】同ボトムピースの加工手順図[Figure 4] Processing procedure diagram of the bottom piece
【図5】第3実施例に係るボトムピースの組付け断面図FIG. 5 is an assembled sectional view of a bottom piece according to the third embodiment.
【図6】同ボトムピースの加工手順図[Fig. 6] Processing procedure diagram of the bottom piece
【図7】(a)従来の薄肉アウターチューブによるボト
ム構造の断面図、(b)バルブガイドの底面図7A is a cross-sectional view of a bottom structure using a conventional thin outer tube, and FIG. 7B is a bottom view of a valve guide.
1…アウターチューブ、1a…ボトム部、2…ダンパー
シリンダ、3,13,23…ボトムピース、4…バルブ
ガイド、5…チェックバルブ、6,16,26…円筒
部、7,17,27…張出し部、8,18,28…脚
部、9,19,29…当接部、S…隙間、S1…油室、
S2…環状油溜室。1 ... Outer tube, 1a ... Bottom part, 2 ... Damper cylinder, 3, 13, 23 ... Bottom piece, 4 ... Valve guide, 5 ... Check valve, 6, 16, 26 ... Cylindrical part, 7, 17, 27 ... Overhang Part, 8, 18, 28 ... Leg part, 9, 19, 29 ... Contact part, S ... Gap, S1 ... Oil chamber,
S2 ... Annular oil reservoir.
Claims (4)
プレス成形し、この中間成形体の鍔部の一部をその円筒
部と反対側に折曲げた脚部を備え、この脚部を介してダ
ンパーシリンダをアウターチューブのボトム部に支える
ボトムピースにおいて、前記中間成形体の鍔部は、アウ
ターチューブの径方向に対する位置決め用の張出し部と
前記脚部用の突出部とからなることを特徴とする油圧緩
衝器用ボトムピース。1. An intermediate molded body having a flanged cylinder is press-molded from a flat plate, and a leg portion is formed by bending a part of the collar portion of the intermediate molded body to the side opposite to the cylindrical portion. In the bottom piece that supports the damper cylinder to the bottom portion of the outer tube via the flange portion of the intermediate molded body, the flange portion includes an overhanging portion for positioning in the radial direction of the outer tube and a protruding portion for the leg portion. Bottom piece for hydraulic shock absorber.
ースにおいて、前記脚部の先端には、アウターチューブ
のボトム部に沿って曲げた当接部を形成したことを特徴
とする油圧緩衝器用ボトムピース。2. The bottom piece for a hydraulic shock absorber according to claim 1, wherein an abutting portion bent along the bottom portion of the outer tube is formed at a tip of the leg portion. Bottom piece.
ースにおいて、前記平板は正方形とし、その角部を前記
脚部用の突出部としたことを特徴とする油圧緩衝器用ボ
トムピース。3. The bottom piece for a hydraulic shock absorber according to claim 2, wherein the flat plate has a square shape, and a corner portion thereof is a protrusion for the leg portion.
ースにおいて、前記脚部用の突出部の先端を前記置決め
用の張出し部としたことを特徴とする油圧緩衝器用ボト
ムピース。4. The bottom piece for a hydraulic shock absorber according to claim 3, wherein a tip of the protrusion for the leg portion is a projecting portion for the positioning.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23380494A JP3433773B2 (en) | 1994-09-28 | 1994-09-28 | Bottom piece for hydraulic shock absorber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23380494A JP3433773B2 (en) | 1994-09-28 | 1994-09-28 | Bottom piece for hydraulic shock absorber |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0893824A true JPH0893824A (en) | 1996-04-12 |
JP3433773B2 JP3433773B2 (en) | 2003-08-04 |
Family
ID=16960851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23380494A Expired - Fee Related JP3433773B2 (en) | 1994-09-28 | 1994-09-28 | Bottom piece for hydraulic shock absorber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3433773B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012233595A (en) * | 2012-09-03 | 2012-11-29 | Kyb Co Ltd | Double-cylinder type damper |
US20130257011A1 (en) * | 2012-03-27 | 2013-10-03 | Showa Corporation | Damping force generator for hydraulic shock absorber |
-
1994
- 1994-09-28 JP JP23380494A patent/JP3433773B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130257011A1 (en) * | 2012-03-27 | 2013-10-03 | Showa Corporation | Damping force generator for hydraulic shock absorber |
CN103363009A (en) * | 2012-03-27 | 2013-10-23 | 株式会社昭和 | Damping force generator for hydraulic shock absorber |
US9022186B2 (en) * | 2012-03-27 | 2015-05-05 | Showa Corporation | Damping force generator for hydraulic shock absorber |
JP2012233595A (en) * | 2012-09-03 | 2012-11-29 | Kyb Co Ltd | Double-cylinder type damper |
Also Published As
Publication number | Publication date |
---|---|
JP3433773B2 (en) | 2003-08-04 |
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