JPH0173483U - - Google Patents
Info
- Publication number
- JPH0173483U JPH0173483U JP1987169779U JP16977987U JPH0173483U JP H0173483 U JPH0173483 U JP H0173483U JP 1987169779 U JP1987169779 U JP 1987169779U JP 16977987 U JP16977987 U JP 16977987U JP H0173483 U JPH0173483 U JP H0173483U
- Authority
- JP
- Japan
- Prior art keywords
- damper
- cylinder
- built
- front fork
- damper cylinder
- 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
- 238000005192 partition Methods 0.000 claims 4
- 238000013016 damping Methods 0.000 description 2
Landscapes
- Axle Suspensions And Sidecars For Cycles (AREA)
- Fluid-Damping Devices (AREA)
Description
第１図は本考案の一実施例に係るフロントフオ
ークの一部切欠き縦断正面図、第２図は第１図の
一部拡大断面図、第３図は本考案に係る減衰力特
性を示すグラフ、第４図は従来のフロントフオー
クの一部切欠き縦断正面時、第５図は従来の減衰
力を示すグラフである。
〔符号の説明〕、１…アウターチユーブ、２…
インナーチユーブ、３…ダンパーシリンダ、６ｂ
…油室、７…リザーバ、１５…圧側バルブ、１７
…チエツクバルブ、２１…ポート、２５，２６，
２８ａ，２８ｂ，２９，３０…通路、３２…ニー
ドル弁。
Fig. 1 is a partially cutaway longitudinal sectional front view of a front fork according to an embodiment of the present invention, Fig. 2 is a partially enlarged sectional view of Fig. 1, and Fig. 3 shows damping force characteristics according to the present invention. FIG. 4 is a graph showing the conventional front fork in a partially cutaway vertical cross-sectional view, and FIG. 5 is a graph showing the conventional damping force. [Explanation of symbols], 1...outer tube, 2...
Inner tube, 3...damper cylinder, 6b
...Oil chamber, 7...Reservoir, 15...Pressure side valve, 17
...Check valve, 21...Port, 25, 26,
28a, 28b, 29, 30...Passage, 32...Needle valve.
Claims (1)
摺動自在に挿入し、アウターチユーブの下部中央
からダンパーシリンダを起立させ、ダンパーシリ
ンダ内にバルブを設けたピストンを介してジスト
ンロツドが移動自在に挿入され、ダンパーシリン
ダの外側にリザーバが設けられ、ダンパーシリン
ダ内にはピストンによつて上下二つの油室が区画
されているダンパー内蔵型フロントフオークにお
いて、ダンパーシリンダの下部油室とリザーバと
を接続する通路の途中に圧側バルブと可変絞りを
直列に設け、更にダンパーシリンダの下部油室と
リザーバとを接続するバイパスを設け、このバイ
パスの途中に伸長時に開くチエツクバルブを設け
たことを特徴とするダンパー内蔵型フロントフオ
ーク。 (2) ダンパーシリンダの下部に隔壁部材を設け
、この隔壁部材とダンパーシリンダにバイパスと
して利用するポートと通孔をそれぞれ設け、ポー
トの口端シートにチエツクバルブが開閉自在に設
けられている実用新案登録請求の範囲第１項記載
のダンパー内蔵型フロントフオーク。 (3) 可変絞りが外部から調整可能なニードル弁
である実用新案登録請求の範囲第１項記載のダン
パー内蔵型フロントフオーク。 (4) ニードル弁のポペツトに可変絞りと並列な
固定絞りが設けられている実用新案登録請求の範
囲第３項記載のダンパー内蔵型フロントフオーク
。 (5) ダンパーシリンダ内に支持桿を設け、この
支持桿に隔壁部材を設け、隔壁部材と支持桿とシ
リンダとにダンパーシリンダの下部油室とリザー
バとを接続する通路を設けている実用新案登録請
求の範囲第１項記載のダンパー内蔵型フロントフ
オーク。[Scope of Claim for Utility Model Registration] (1) An inner tube is slidably inserted into an outer tube, a damper cylinder is erected from the center of the lower part of the outer tube, and a piston with a valve provided in the damper cylinder is connected to the piston rod. In a front fork with a built-in damper, a reservoir is provided on the outside of the damper cylinder, and two upper and lower oil chambers are partitioned into the damper cylinder by a piston. A pressure side valve and a variable throttle are installed in series in the middle of the passage connecting to the reservoir, and a bypass is also installed to connect the lower oil chamber of the damper cylinder and the reservoir, and a check valve that opens when the cylinder is extended is installed in the middle of this bypass. Front fork with built-in damper. (2) A utility model in which a partition member is provided at the bottom of the damper cylinder, a port and a through hole used as a bypass are provided in the partition member and the damper cylinder, and a check valve is provided in the seat at the mouth end of the port so that it can be opened and closed. A front fork with a built-in damper according to claim 1. (3) The front fork with a built-in damper according to claim 1, wherein the variable throttle is a needle valve that can be adjusted from the outside. (4) The front fork with a built-in damper according to claim 3, wherein the poppet of the needle valve is provided with a fixed throttle parallel to the variable throttle. (5) Utility model registration in which a support rod is provided in the damper cylinder, a partition member is provided on the support rod, and a passage is provided between the partition member, the support rod, and the cylinder to connect the lower oil chamber of the damper cylinder and the reservoir. A front fork with a built-in damper according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16977987U JPH059548Y2 (en) | 1987-11-06 | 1987-11-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16977987U JPH059548Y2 (en) | 1987-11-06 | 1987-11-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0173483U true JPH0173483U (en) | 1989-05-17 |
| JPH059548Y2 JPH059548Y2 (en) | 1993-03-09 |
Family
ID=31460138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16977987U Expired - Lifetime JPH059548Y2 (en) | 1987-11-06 | 1987-11-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH059548Y2 (en) |
-
1987
- 1987-11-06 JP JP16977987U patent/JPH059548Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH059548Y2 (en) | 1993-03-09 |
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