JPS63160457U - - Google Patents
Info
- Publication number
- JPS63160457U JPS63160457U JP5391387U JP5391387U JPS63160457U JP S63160457 U JPS63160457 U JP S63160457U JP 5391387 U JP5391387 U JP 5391387U JP 5391387 U JP5391387 U JP 5391387U JP S63160457 U JPS63160457 U JP S63160457U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- end surface
- shock absorber
- absorber according
- seat member
- 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 claims description 8
- 230000035939 shock Effects 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
Description
第１図は本考案の一実施例に係るシヨツクアブ
ソーバのピストンナツト部を部分的に示す縦断面
図、第２図はバルブ部の拡大断面図、第３図は他
の実施例に係るピストンナツト部の縦断面図、第
４図は第３図のバルブ部の拡大断面図、第５図は
他の実施例に係るバルブ部の拡大断面図、第６図
は従来例としてのシヨツクアブソーバを部分的に
示す縦断面図である。
１……シリンダ、２……ピストン部、３……ピ
ストンロツド、４，５……油室、２０……バルブ
ケース、２０ａ……ポート、２０ｂ……開口溝、
２０ｃ……減圧溝、２０ｄ……外側シート部、２
０ｅ……内側シート部、２１……バルブ、４０…
…バルブケース、４０ａ……外側ポート、４０ｂ
……開口溝、４０ｃ……減圧溝、４０ｄ……外側
シート部、４０ｅ……内側シート部、４１……バ
ルブ、Ｏ……オリフイス、δ……環状隙間。
FIG. 1 is a vertical sectional view partially showing the piston nut portion of a shock absorber according to one embodiment of the present invention, FIG. 2 is an enlarged sectional view of the valve portion, and FIG. 3 is a piston nut according to another embodiment. FIG. 4 is an enlarged sectional view of the valve portion of FIG. 3, FIG. 5 is an enlarged sectional view of a valve portion according to another embodiment, and FIG. 6 is a partial view of a conventional shock absorber. FIG. 1... Cylinder, 2... Piston part, 3... Piston rod, 4, 5... Oil chamber, 20... Valve case, 20a... Port, 20b... Opening groove,
20c... pressure reducing groove, 20d... outer sheet part, 2
0e...Inner seat portion, 21...Valve, 40...
...Valve case, 40a...Outside port, 40b
... Opening groove, 40c... Pressure reduction groove, 40d... Outer seat portion, 40e... Inner seat portion, 41... Valve, O... Orifice, δ... Annular gap.
Claims (1)
ンロツドに設けた通路を介して通じ、この通路の
開口面積を調整して減衰力を調整し、ピストンロ
ツドに設けたバルブシート部材にポートを穿設し
、このポートの上端が開口する開口溝を上記バル
ブシート部材の上端面に穿設された内側シート部
で区画すると共に、上記開口溝を上方から閉塞す
るように配設されるバルブを有してなるシヨツク
アブソーバにおいて、バルブシート部材の上端面
には内側シート部の外周に当該内側シート部と同
心円に突設された外側シート部および当該シート
部で区画される減圧溝を形成すると共に形成し、
上記外側シート部の上端面は上記内側シート部の
上端面より高く位置決められて上記内側シート部
の上端面と上方のバルブの下端面との間には環状
隙間が形成され、かつ、上記バルブの外周端ある
いは上記外側シート部の上端面のいずれかにオリ
フイスが形成されてなることを特徴とするシヨツ
クアブソーバ。 (2) バルブシート部材とバルブがピストンロツ
ドに螺合されたピストンナツト内に配置されてい
る実用新案登録請求の範囲第１項記載のシヨツク
アブソーバ。 (3) バルブシート部材がピストンナツトに設け
たバルブケースである実用新案登録請求の範囲第
１項記載のシヨツクアブソーバ。 (4) バルブがノンリターンバルブである実用新
案登録請求の範囲第１項記載のシヨツクアブソー
バ。 (5) バルブが減衰バルブである実用新案登録請
求の範囲第１項記載のシヨツクアブソーバ。[Scope of Claim for Utility Model Registration] (1) Two oil chambers divided in the piston communicate through a passage provided in the piston rod, and the damping force is adjusted by adjusting the opening area of this passage. A port is bored in the valve seat member, and an opening groove in which the upper end of the port opens is divided by an inner seat part bored in the upper end surface of the valve seat member, and the opening groove is closed from above. In a shock absorber having a valve disposed therein, the upper end surface of the valve seat member is partitioned by an outer seat part protruding from the outer periphery of the inner seat part concentrically with the inner seat part, and the seat part. While forming a pressure reducing groove,
The upper end surface of the outer seat portion is positioned higher than the upper end surface of the inner seat portion, and an annular gap is formed between the upper end surface of the inner seat portion and the lower end surface of the upper valve. A shock absorber characterized in that an orifice is formed either at the outer peripheral end or at the upper end surface of the outer seat portion. (2) The shock absorber according to claim 1, wherein the valve seat member and the valve are disposed within a piston nut screwed onto a piston rod. (3) The shock absorber according to claim 1, wherein the valve seat member is a valve case provided on a piston nut. (4) The shock absorber according to claim 1, wherein the valve is a non-return valve. (5) The shock absorber according to claim 1, wherein the valve is a damping valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5391387U JPS63160457U (en) | 1987-04-09 | 1987-04-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5391387U JPS63160457U (en) | 1987-04-09 | 1987-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63160457U true JPS63160457U (en) | 1988-10-20 |
Family
ID=30880414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5391387U Pending JPS63160457U (en) | 1987-04-09 | 1987-04-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63160457U (en) |
-
1987
- 1987-04-09 JP JP5391387U patent/JPS63160457U/ja active Pending