JPH034944U - - Google Patents
Info
- Publication number
- JPH034944U JPH034944U JP6585389U JP6585389U JPH034944U JP H034944 U JPH034944 U JP H034944U JP 6585389 U JP6585389 U JP 6585389U JP 6585389 U JP6585389 U JP 6585389U JP H034944 U JPH034944 U JP H034944U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- liquid chamber
- communication hole
- chamber
- disc valve
- 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
- 239000007788 liquid Substances 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Description
第1図は本考案一実施例の減衰力可変型液圧緩
衝器の要部を示す断面図、第2図は実施例の第1
ピストン及び第2ピストンの上面を示す平面図、
第3図は第1ピストンの下面を示す底面図、第4
図は第2ピストンの下面を示す底面図、第5図は
実施例の液圧回路図、第6図は実施例のベースを
示す断面図、第7図は第6図E部の拡大断面図、
第8図は実施例の伸行程時のピストン速度に対す
る減衰力特性図、第9図は実施例の圧行程におけ
るピストン速度に対する減衰力特性図である。
A……上部液室(第1液室)、B……下部液室
(第2液室)、C……中間室、F……バイパス路
、1……シリンダ、3……ピストンロツド、7…
…第1ピストン、7e……第1伸側連通孔(第1
連通孔)、8a……第1伸側デイスクバルブ、8
b……第2伸側デイスクバルブ、9……第2ピス
トン、9d……第2内側開口窓、9e……第2外
側開口窓、9f……第2伸側内側シート面、9g
……第2伸側外側シート面、9h……第2伸側連
通孔(第2連通孔)、15……調整子(可変オリ
フイス)、15b……第1オリフイス孔、15c
……第2オリフイス孔、15d……第3オリフイ
ス孔。
FIG. 1 is a sectional view showing the main parts of a variable damping force type hydraulic shock absorber according to an embodiment of the present invention, and FIG.
A plan view showing the top surfaces of the piston and the second piston,
Figure 3 is a bottom view showing the lower surface of the first piston;
The figure is a bottom view showing the lower surface of the second piston, Figure 5 is a hydraulic circuit diagram of the embodiment, Figure 6 is a sectional view showing the base of the embodiment, and Figure 7 is an enlarged sectional view of section E in Figure 6. ,
FIG. 8 is a characteristic diagram of damping force versus piston speed during the extension stroke of the embodiment, and FIG. 9 is a characteristic diagram of damping force versus piston speed during the compression stroke of the embodiment. A... Upper liquid chamber (first liquid chamber), B... Lower liquid chamber (second liquid chamber), C... Intermediate chamber, F... Bypass path, 1... Cylinder, 3... Piston rod, 7...
...First piston, 7e...First extension side communication hole (first
communication hole), 8a...first expansion side disc valve, 8
b...Second extension side disc valve, 9...Second piston, 9d...Second inner opening window, 9e...Second outer opening window, 9f...Second extension side inner seat surface, 9g
...Second extension side outer sheet surface, 9h...Second extension side communication hole (second communication hole), 15...Adjustor (variable orifice), 15b...First orifice hole, 15c
...Second orifice hole, 15d...Third orifice hole.
Claims (1)
直列に設けられ、かつ、相互間に中空室が形成さ
れた第1ピストン及び第2ピストンと、 一方の液室と中間室とを連通して第1ピストン
に形成された第1連通孔及び、他方の液室と中間
室とを連通して第2ピストンに形成された第2連
通孔と、 前記第1連通孔を開閉すべく第1ピストンに設
けられた第1デイスクバルブ及び、第2連通孔を
開閉すべく、内外2重のシート面に当接して第2
ピストンに設けられた第2デイスクバルブと、 両連通孔と並列に、一方の液室と中間室とを連
通すると共に、一方の液室と両シート面の内側に
形成された開口窓の一方とを連通して形成された
バイパス路と、 該バイパス路に設けられた可変オリフイスと、 を備えていることを特徴とする減衰力可変型液
圧緩衝器。[Claims for Utility Model Registration] A first piston and a second piston are provided in series with the inside of the cylinder divided into a first liquid chamber and a second liquid chamber, and a hollow chamber is formed between them. , a first communication hole formed in the first piston to communicate one liquid chamber and the intermediate chamber, and a second communication hole formed in the second piston to communicate the other liquid chamber and the intermediate chamber. , a first disc valve provided on the first piston to open and close the first communication hole; and a second disc valve that abuts against the inner and outer double seat surfaces to open and close the second communication hole.
A second disc valve provided on the piston communicates one liquid chamber with the intermediate chamber in parallel with both communication holes, and connects one liquid chamber with one of the opening windows formed on the inside of both seat surfaces. A variable damping force type hydraulic shock absorber, comprising: a bypass path formed by communicating the two; and a variable orifice provided in the bypass path.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989065853U JP2537802Y2 (en) | 1989-06-06 | 1989-06-06 | Variable damping force hydraulic pressure relief device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989065853U JP2537802Y2 (en) | 1989-06-06 | 1989-06-06 | Variable damping force hydraulic pressure relief device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH034944U true JPH034944U (en) | 1991-01-18 |
JP2537802Y2 JP2537802Y2 (en) | 1997-06-04 |
Family
ID=31598059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1989065853U Expired - Lifetime JP2537802Y2 (en) | 1989-06-06 | 1989-06-06 | Variable damping force hydraulic pressure relief device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2537802Y2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5279487U (en) * | 1975-12-10 | 1977-06-14 | ||
JPS602035U (en) * | 1983-06-17 | 1985-01-09 | カヤバ工業株式会社 | Shock absorber damping force adjustment device |
JPS61182431U (en) * | 1985-05-08 | 1986-11-14 |
-
1989
- 1989-06-06 JP JP1989065853U patent/JP2537802Y2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5279487U (en) * | 1975-12-10 | 1977-06-14 | ||
JPS602035U (en) * | 1983-06-17 | 1985-01-09 | カヤバ工業株式会社 | Shock absorber damping force adjustment device |
JPS61182431U (en) * | 1985-05-08 | 1986-11-14 |
Also Published As
Publication number | Publication date |
---|---|
JP2537802Y2 (en) | 1997-06-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH034944U (en) | ||
JPS63109052U (en) | ||
JPH0322149U (en) | ||
JPH02117446U (en) | ||
JPH0312034U (en) | ||
JPH0265735U (en) | ||
JPH0385735U (en) | ||
JPH0312033U (en) | ||
JPH01149039U (en) | ||
JPH03342U (en) | ||
JPH02134342U (en) | ||
JPS6348044U (en) | ||
JPH02107845U (en) | ||
JPH0274636U (en) | ||
JPS602035U (en) | Shock absorber damping force adjustment device | |
JPH0343141U (en) | ||
JPH0325041U (en) | ||
JPS6337837U (en) | ||
JPH0312041U (en) | ||
JPH0335345U (en) | ||
JPH0325043U (en) | ||
JPS58144136U (en) | hydraulic shock absorber | |
JPH0349443U (en) | ||
JPH0427236U (en) | ||
JPH03108944U (en) |