JPS61127196U - - Google Patents
Info
- Publication number
- JPS61127196U JPS61127196U JP888885U JP888885U JPS61127196U JP S61127196 U JPS61127196 U JP S61127196U JP 888885 U JP888885 U JP 888885U JP 888885 U JP888885 U JP 888885U JP S61127196 U JPS61127196 U JP S61127196U
- Authority
- JP
- Japan
- Prior art keywords
- double
- auxiliary hydraulic
- acting auxiliary
- platform
- 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.)
- Pending
Links
- 230000008602 contraction Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 1
Landscapes
- Jet Pumps And Other Pumps (AREA)
Description
第１図は本考案の一実施例を示す油圧回路の動
作態様を示す説明図、第２図は従来装置の機構説
明図、第３図は対照例を示す説明図である。
１……乗せ台、２，３……圧縮空気圧シリンダ
、４，５……複動式補助油圧シリンダ、６，７…
…油圧通路、８，９……油圧調整シリンダ。
FIG. 1 is an explanatory diagram showing an operating mode of a hydraulic circuit showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of a mechanism of a conventional device, and FIG. 3 is an explanatory diagram showing a comparative example. 1... Stand, 2, 3... Compressed air cylinder, 4, 5... Double-acting auxiliary hydraulic cylinder, 6, 7...
...Hydraulic passage, 8, 9...Hydraulic pressure adjustment cylinder.
Claims (1)
る複数の圧縮空気圧シリンダの伸縮作動により乗
せ台の昇降作動を行わせるようにした自動車用昇
降装置において、ピストン及びピストンロツド、
シリンダチユーブよりなり上記乗せ台の前後端部
の昇降作動を補助する前後の複動式補助油圧シリ
ンダを設けると共に上記いずれか一方の複動式補
助油圧シリンダのピストンにより区分される上部
室及び下部室を他方の複動式補助油圧シリンダの
下部室及び上部室にそれぞれ連通する油圧通路に
それぞれ油圧調整シリンダを設け、一方の複動式
補助油圧シリンダに加えられた作動力と同じ大き
さと方向を有する作動力を他方の複動式補助油圧
シリンダに発生させ乗せ台の水平度を保持するよ
うにしたことを特徴とする自動車用昇降装置の水
平度保持装置。 (2) 複動式補助油圧シリンダのピストンにより
区分される上部室と下部室との断面積の比が油圧
調整シリンダのピストンにより区分される２つの
部屋の断面積の比に等しいことを特徴とする実用
新案登録請求の範囲第(1)項記載の自動車用昇降
装置の水平度保持装置。[Scope of Claim for Utility Model Registration] (1) In an automobile lifting device that raises and lowers the platform by the expansion and contraction of a plurality of compressed air cylinders that support the front and rear ends of the platform on which the vehicle is placed, and piston rod,
Front and rear double-acting auxiliary hydraulic cylinders are provided which are made of cylinder tubes and assist in raising and lowering the front and rear ends of the platform, and an upper chamber and a lower chamber are divided by the piston of one of the double-acting auxiliary hydraulic cylinders. A hydraulic pressure adjustment cylinder is provided in each hydraulic passage that communicates with the lower chamber and upper chamber of the other double-acting auxiliary hydraulic cylinder, respectively, and has the same magnitude and direction as the operating force applied to one double-acting auxiliary hydraulic cylinder. 1. A leveling device for an automobile lifting device, characterized in that the leveling of a platform is maintained by generating operating force in the other double-acting auxiliary hydraulic cylinder. (2) The ratio of the cross-sectional areas of the upper chamber and the lower chamber divided by the piston of the double-acting auxiliary hydraulic cylinder is equal to the ratio of the cross-sectional areas of the two chambers divided by the piston of the hydraulic adjustment cylinder. A horizontality maintaining device for an automobile lifting device as set forth in claim (1) of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP888885U JPS61127196U (en) | 1985-01-25 | 1985-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP888885U JPS61127196U (en) | 1985-01-25 | 1985-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61127196U true JPS61127196U (en) | 1986-08-09 |
Family
ID=30488587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP888885U Pending JPS61127196U (en) | 1985-01-25 | 1985-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61127196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0395391U (en) * | 1990-01-20 | 1991-09-27 |
-
1985
- 1985-01-25 JP JP888885U patent/JPS61127196U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0395391U (en) * | 1990-01-20 | 1991-09-27 |
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