JPS6139862Y2 - - Google Patents
Info
- Publication number
- JPS6139862Y2 JPS6139862Y2 JP19124981U JP19124981U JPS6139862Y2 JP S6139862 Y2 JPS6139862 Y2 JP S6139862Y2 JP 19124981 U JP19124981 U JP 19124981U JP 19124981 U JP19124981 U JP 19124981U JP S6139862 Y2 JPS6139862 Y2 JP S6139862Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- spring
- shock absorber
- adjuster
- piston rod
- 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.)
- Expired
Links
- 239000006096 absorbing agent Substances 0.000 claims description 10
- 230000035939 shock Effects 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Description
【考案の詳細な説明】
本考案は二輪車の後輪懸架装置等に用いられる
バネ荷重調整式の油圧緩衝器の改良に関するもの
である。[Detailed Description of the Invention] The present invention relates to an improvement of a spring load adjustable hydraulic shock absorber used in a rear wheel suspension system of a two-wheeled vehicle.
油圧減衰力発生機構とコイルバネを組み合せた
油圧緩衝器は二輪車等の車両の懸架装置として知
られており、かかる緩衝器においてコイルバネを
筒体外側に外装し、コイルバネの張架長さを変化
させてバネ荷重を調整し、緩衝特性を変更し得る
ようにしたものが知られている。 A hydraulic shock absorber that combines a hydraulic damping force generation mechanism and a coil spring is known as a suspension system for vehicles such as two-wheeled vehicles. It is known that the spring load can be adjusted to change the damping characteristics.
かかるタイプの緩衝器として従来のものは例え
ば第３図に示される如くで、ピストン５１を摺動
自在に嵌装し、ロツド５２を外方に延出したシリ
ンダ５３の中間部乃至上部ネジ５４ａを刻設した
スリーブ５４を嵌合固着し、これにバネ受部５５
を有するナツト状アジヤスタ５６を螺合し、一
方、ロツド５２の端部にはバネ受５７を設け、こ
の間にロツド及びシリンダを囲繞する如くコイル
バネ５８を介装し、５９はアジヤスタ５６のロツ
クナツトである。以上において、アジヤスタ５６
を回動させることによりこれがシリンダ５３の周
りを軸方向に移動し、コイルバネ５８のバネ荷重
を調整するものであるが、かかる従来手段はネジ
付スリーブ５４を別設する必要があり、部品点数
が多くなること、スリーブ５１の内径精度を維持
しつつ製作する必要があり製作が面倒であるこ
と、スリーブの嵌装、溶接作業が増え、工数が多
くなること等不利である。 A conventional shock absorber of this type is, for example, as shown in FIG. 3, in which a piston 51 is slidably fitted and a screw 54a at the middle or upper part of a cylinder 53, in which a rod 52 extends outward, is fitted. The carved sleeve 54 is fitted and fixed, and the spring receiving part 55 is attached to this.
On the other hand, a spring receiver 57 is provided at the end of the rod 52, and a coil spring 58 is interposed between them so as to surround the rod and the cylinder. 59 is a lock nut of the adjuster 56. . In the above, the adjuster 56
By rotating the coil spring, it moves in the axial direction around the cylinder 53, and the spring load of the coil spring 58 is adjusted. However, in this conventional means, it is necessary to separately install the threaded sleeve 54, and the number of parts is reduced. It is disadvantageous that the number of sleeves 51 increases, that manufacturing is troublesome because it is necessary to maintain the inner diameter accuracy of the sleeve 51, and that the work of fitting the sleeve and welding increases, which increases the number of man-hours.
一方、第４図の如くシリンダ６３の中間部乃至
上部の外周に直接ネジ６４を刻設し、これに螺合
したアジヤスタ６６とピストンロツド６２に設け
たバネ受６７の間に介装したバネ６８の調整をア
ジヤスタ６６の螺進退で行うようにしたものも提
案されるが、これによりシリンダ６３の肉厚が増
大し、これらの加工が面倒となること、重量が大
きくなり車両の軽量化の要請に反する等の不利が
ある。 On the other hand, as shown in FIG. 4, a screw 64 is directly carved on the outer periphery of the middle or upper part of the cylinder 63, and a spring 68 is inserted between an adjuster 66 screwed into the screw and a spring receiver 67 provided on the piston rod 62. A system in which adjustment is performed by screwing the adjuster 66 forward and backward has also been proposed, but this increases the thickness of the cylinder 63, making machining difficult, and increases the weight, which meets the demand for lighter vehicles. There are disadvantages such as going against the rules.
本考案は以上を改善すべくなされたもので、そ
の目的とする処は、シリンダの栓体周に直接ネジ
部を刻設してこれにアジヤスタを螺合する如く
し、既存の構成部品を利用しつつネジ部を設ける
ことができ、又軽量化をも企図し、更には構造、
製作が容易である油圧緩衝器を提供するにある。 The present invention has been made to improve the above-mentioned problems, and its purpose is to carve a threaded part directly around the plug body of the cylinder and screw the adjuster into this, thereby making use of existing components. It is possible to provide a threaded part while also reducing the weight, and further improves the structure.
The object of the present invention is to provide a hydraulic shock absorber that is easy to manufacture.
次に本考案の好的一実施例を添付図面に従つて
詳述する。 Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
第１図は緩衝器の縦断側面図で、１は本体をな
すシリンダ（外筒）で、シリンダ１は軸方向両端
を開放した円筒状をなし、下端には底をなす栓体
２を接合して閉塞し、かかるシリンダ１内にはピ
ストン３が摺動自在に嵌合され、ピストン３は伸
び行程でオリフイス４を開くチエツクバルブ５、
圧縮行程でオリフイス６を開くチエツクバルブ７
等からなる油圧減衰力発生機構を備える。ピスト
ン３はシリンダ１の軸方向上方に延出されたロツ
ド８の下端に固着され、ロツド８はシリンダ上端
を塞ぐ蓋体９の中央部のガイド孔１０を通つて上
方に延出されることとなる。ロツド８の上端部に
は逆皿状のバネ受本体１１を係着し、これの下の
ロツド８周にはバンプストツパラバー１２を配設
し、本体１１の下端部には径方向外方に延びる断
面略Ｚ型のバネ受リング１３を設け、尚１４はロ
ツド８の上端部に固着した車体側等への取付部で
ある。 Fig. 1 is a vertical side view of the shock absorber, where 1 is a cylinder (outer cylinder) that forms the main body.Cylinder 1 has a cylindrical shape with both axial ends open, and a plug body 2 that forms the bottom is joined to the lower end. A piston 3 is slidably fitted into the cylinder 1, and the piston 3 has a check valve 5 which opens the orifice 4 during the extension stroke.
Check valve 7 that opens orifice 6 during the compression stroke
Equipped with a hydraulic damping force generation mechanism consisting of, etc. The piston 3 is fixed to the lower end of a rod 8 that extends upward in the axial direction of the cylinder 1, and the rod 8 extends upward through a guide hole 10 in the center of a lid 9 that closes the upper end of the cylinder. . An inverted dish-shaped spring receiver main body 11 is attached to the upper end of the rod 8, and a bump stop lever 12 is arranged around the rod 8 below this, and a bump stop lever 12 is provided at the lower end of the main body 11. A spring bearing ring 13 having a substantially Z-shaped cross section is provided, and reference numeral 14 is a mounting portion fixed to the upper end of the rod 8 and attached to the vehicle body side.
既述の栓体２は周壁部２ａが軸方向にある程度
長さを有するカツプ状をなし、これの底部２ｂ外
には車輪側のリヤフオーク等への取付部１５を備
える。周壁部２ａの上端部２ｃの外周にシリンダ
１の下端部１ａ内径部を嵌合し、双方を溶接し、
この上端部２ｃを除く周壁部２ａの外周にネジ部
１６を形成する。かかるネジ部１６周に外径部に
段部よりなる受座１７ａを有するナツト状のアジ
ヤスタ１７を螺合し、ロツド８及びシリンダ１周
を囲繞する如く設けられたコイルバネ１８の両端
部１８ａ，１８ｂをバネ受リング１３及びアジヤ
スタ１７の受座１７ａで係止し、図Ｋ１９はロツ
クナツトである。 The aforementioned plug body 2 has a cup shape in which the circumferential wall portion 2a has a certain length in the axial direction, and has a mounting portion 15 on the outside of the bottom portion 2b for attaching to a rear fork or the like on the wheel side. The inner diameter part of the lower end part 1a of the cylinder 1 is fitted to the outer periphery of the upper end part 2c of the peripheral wall part 2a, and both are welded.
A threaded portion 16 is formed on the outer periphery of the peripheral wall portion 2a excluding the upper end portion 2c. A nut-shaped adjuster 17 having a seat 17a formed of a stepped portion on the outer diameter is screwed around the threaded portion 16, and both ends 18a, 18b of a coil spring 18 are provided so as to surround the rod 8 and the cylinder. is locked by the spring bearing ring 13 and the seat 17a of the adjuster 17, and Fig. K19 shows the lock nut.
第２図は変更実施例を示し、栓体とシリンダの
接合構造が変更されたもので、変更のない部分で
同一部分には同一符号を付したものである。栓体
１０２の開放端内径部に径大部１０２ｄを設け、
これにシリンダ１０１の下端部１０１ａ外径部を
嵌合して接合したもので、栓体２の外周部にはネ
ジ部１６が形成されている。 FIG. 2 shows a modified embodiment in which the joint structure between the stopper and the cylinder has been changed, and the same parts that are unchanged are given the same reference numerals. A large diameter portion 102d is provided at the inner diameter portion of the open end of the plug body 102,
The outer diameter portion of the lower end 101a of the cylinder 101 is fitted and joined to this, and a threaded portion 16 is formed on the outer periphery of the plug body 2.
次にその作用、効果を詳述すると、アジヤスタ
１７をロツクナツト１９をゆるめて螺回動するこ
とによりネジ部１６に案内されて軸方向に栓体２
周、従つてシリンダ１の周りを進退し、これによ
りアジヤスタ１７とバネ受リング１３間に介設さ
れたバネ１８のバネ荷重は調整され、アジヤスタ
１７を上昇させることによりバネは硬くなり、一
方、これを下降させることによりバネは柔かくな
り、緩衝特性は変更されることとなる。 Next, to explain the operation and effect in detail, by loosening the lock nut 19 and screwing the adjuster 17, the adjuster 17 is guided by the threaded portion 16 and axially engages the plug 2.
The spring load of the spring 18 interposed between the adjuster 17 and the spring bearing ring 13 is adjusted by moving the spring 18 forward and backward around the circumference, therefore around the cylinder 1, and by raising the adjuster 17, the spring becomes harder. By lowering it, the spring becomes softer and the damping properties are changed.
ところで上記によりシリンダの一部をなす栓体
にアジヤスタ用ネジ部を設けるためシリンダに設
けるのと同じで、シリンダ周にネジ付スリーブを
嵌合溶接する如き部品点数の増加、工数の増加、
製作の煩雑性がなくなり、一方、栓体にネジ部を
設けるためこれの周壁を厚肉とし、シリンダは強
度、剛性上必要、充分な肉厚で足り、シリンダに
一体にネジ部を形成する場合のような重量増加が
なく、又栓体は軸方向長さが短かいためネジ加工
も容易である。 By the way, in order to provide the screw part for the adjuster on the stopper that forms a part of the cylinder, the number of parts and man-hours increase, such as fitting and welding a threaded sleeve around the cylinder, which is the same as providing the screw part for the adjuster on the plug body that forms part of the cylinder.
The complexity of manufacturing is eliminated, and on the other hand, in order to provide a threaded part on the plug body, the peripheral wall of this is made thick, and the cylinder is necessary and sufficient in terms of strength and rigidity, and when the threaded part is formed integrally with the cylinder. There is no weight increase, and the plug body is short in length in the axial direction, so threading is easy.
以上要するに本考案に従えば、製作容易に、軽
量化を図り、部品点数の減少を図つて安価にバネ
荷重可変式の二輪車用油圧緩衝器を得ることがで
きる。 In summary, according to the present invention, it is possible to obtain a variable spring load type hydraulic shock absorber for a two-wheeled vehicle at low cost, which is easy to manufacture, lightweight, and reduces the number of parts.
尚実施例ではピストンロツドを上、栓体を下と
説明したが上下の逆の倒立型にも実施することが
できる。 In the embodiment, the piston rod is on the top and the stopper is on the bottom, but it is also possible to use an inverted type in which the piston rod is on the top and the stopper is on the bottom.
図面は本考案の一実施例を示すもので、第１図
は本考案に係る緩衝器の縦断側面図、第２図は同
変更実施例の同様の図、第３図、第４図は従来例
の同様の図である。
尚図面中１はシリンダ、３はピストン、４〜７
は油圧減衰力発生機構、８はピストンロツド、１
３，１７はバネ受、２は栓体、１６はネジ部、１
８はコイルバネである。
The drawings show one embodiment of the present invention; Fig. 1 is a longitudinal cross-sectional side view of a shock absorber according to the present invention, Fig. 2 is a similar view of the same modified embodiment, and Figs. 3 and 4 are views of the conventional shock absorber. FIG. 3 is a similar diagram of an example. In the drawings, 1 is a cylinder, 3 is a piston, and 4 to 7
is a hydraulic damping force generation mechanism, 8 is a piston rod, 1
3 and 17 are spring holders, 2 is a stopper, 16 is a threaded portion, 1
8 is a coil spring.
Claims (1)
トンを摺動自在に嵌合し、ピストンロツドをシリ
ンダの軸方向の外方の一方に延出し、ピストンロ
ツド外端に設けたバネ受及びシリンダに設けたバ
ネ受間にピストンロツド及びシリンダを囲繞する
如くコイルバネを介装した油圧緩衝器において、
前シリンダ外端を閉塞する栓体外周にネジ部を形
成し、該ネジ部にナツト状の螺回動可能なバネ受
を螺装したことを特徴とする油圧緩衝器。 A piston equipped with a hydraulic damping force generating mechanism is slidably fitted into a cylinder, a piston rod is extended to one side in the axial direction of the cylinder, and a spring holder provided at the outer end of the piston rod and a spring provided in the cylinder are inserted into the cylinder. In a hydraulic shock absorber in which a coil spring is interposed to surround a piston rod and a cylinder between the receivers,
1. A hydraulic shock absorber, characterized in that a threaded portion is formed on the outer periphery of a plug that closes the outer end of a front cylinder, and a nut-shaped spring holder that can be screwed to rotate is screwed into the threaded portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19124981U JPS5894928U (en) | 1981-12-21 | 1981-12-21 | hydraulic shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19124981U JPS5894928U (en) | 1981-12-21 | 1981-12-21 | hydraulic shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5894928U JPS5894928U (en) | 1983-06-28 |
| JPS6139862Y2 true JPS6139862Y2 (en) | 1986-11-14 |
Family
ID=30104722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19124981U Granted JPS5894928U (en) | 1981-12-21 | 1981-12-21 | hydraulic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5894928U (en) |
-
1981
- 1981-12-21 JP JP19124981U patent/JPS5894928U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5894928U (en) | 1983-06-28 |
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