JPH0224111U - - Google Patents
Info
- Publication number
- JPH0224111U JPH0224111U JP10279488U JP10279488U JPH0224111U JP H0224111 U JPH0224111 U JP H0224111U JP 10279488 U JP10279488 U JP 10279488U JP 10279488 U JP10279488 U JP 10279488U JP H0224111 U JPH0224111 U JP H0224111U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- hydraulic cylinder
- prefill
- tip
- seal
- 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
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Actuator (AREA)
- Press Drives And Press Lines (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
第１図は本考案の代表的な実施例の１つを示す
シール部の断面図、第２図は同じく他の実施例を
示すシール部の断面図、第３図は従来のブースタ
ラムタイプの油圧シリンダ例を示す構成図、第４
図は従来のシール部の断面図である。
図の主要部分の説明、１……クランプシリンダ
、３……プレフイルピストン。
Fig. 1 is a sectional view of a seal part showing one of the typical embodiments of the present invention, Fig. 2 is a sectional view of a seal part showing another embodiment, and Fig. 3 is a sectional view of a conventional booster ram type. Block diagram showing an example of a hydraulic cylinder, No. 4
The figure is a sectional view of a conventional seal portion. Explanation of the main parts of the diagram: 1...clamp cylinder, 3...prefill piston.
Claims (1)
の油圧シリンダにおけるシリンダ本体とプレフイ
ルピストン先端のシール部において、プレフイル
ピストンの先端形状を接触部分を最小限として面
圧を高める形状にすると共に、油圧シリンダのシ
ール部とプレフイルピストンに硬度差をつけるこ
とを特徴とする油圧シリンダの内部リーク防止構
造。 In the seal section between the cylinder body and the tip of the prefill piston in a booster ram type hydraulic cylinder with a prefill valve, the tip of the prefill piston is shaped to minimize the contact area and increase surface pressure, and the seal of the hydraulic cylinder is A hydraulic cylinder internal leak prevention structure characterized by a difference in hardness between the piston and the prefilled piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10279488U JPH0224111U (en) | 1988-08-04 | 1988-08-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10279488U JPH0224111U (en) | 1988-08-04 | 1988-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0224111U true JPH0224111U (en) | 1990-02-16 |
Family
ID=31333031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10279488U Pending JPH0224111U (en) | 1988-08-04 | 1988-08-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0224111U (en) |
-
1988
- 1988-08-04 JP JP10279488U patent/JPH0224111U/ja active Pending