JPS6453998A - Hydraulic jack - Google Patents
Hydraulic jackInfo
- Publication number
- JPS6453998A JPS6453998A JP14996087A JP14996087A JPS6453998A JP S6453998 A JPS6453998 A JP S6453998A JP 14996087 A JP14996087 A JP 14996087A JP 14996087 A JP14996087 A JP 14996087A JP S6453998 A JPS6453998 A JP S6453998A
- Authority
- JP
- Japan
- Prior art keywords
- arm
- base
- castor
- drive cylinder
- pivoted
- 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
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Jib Cranes (AREA)
- Handcart (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
PURPOSE: To improve work efficiency by arranging a hydraulic jack main body provided with a plurality of legs on a bogie so as to float freely, arranging a plurality of castors in a lower part of the bogie, and connecting each castor with a drive cylinder provided on the bogie directly or through an arm. CONSTITUTION: An arm 22 is pivoted in an end part of a bracket 21 provided on a base 20 through a shaft 78, and a castor 23 is connected with the arm 22. In the same way, a drive cylinder 74 for adjusting height is arranged in a lower part of the base 20 through a bracket, and a piston rod is pivoted in the other end of the arm 22. Accordingly, when the drive cylinder 74 is expanded and shrunk, the arm 22 is displaced from a horizontal position to a vertical position, the castor 23 also moves at this time, and the base 20 moves vertically by corresponding to an angle of the arm 22. Moreover, a castor 26 is pivoted at a lower end of a drive cylinder 75 connected with the base 20, and the base 20 moves vertically due to the expansion and shrinkage of the cylinder 75. Consequently, both cylinders 74, 75 are expanded and shrunk to adjust a height and compensate the inclination of a hydraulic cylinder 9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62149960A JP2553353B2 (en) | 1987-05-08 | 1987-06-16 | Hydraulic jack |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11277587 | 1987-05-08 | ||
JP62-112775 | 1987-05-08 | ||
JP62149960A JP2553353B2 (en) | 1987-05-08 | 1987-06-16 | Hydraulic jack |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6453998A true JPS6453998A (en) | 1989-03-01 |
JP2553353B2 JP2553353B2 (en) | 1996-11-13 |
Family
ID=26451863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62149960A Expired - Fee Related JP2553353B2 (en) | 1987-05-08 | 1987-06-16 | Hydraulic jack |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2553353B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101042555B1 (en) * | 2009-07-29 | 2011-06-20 | 주식회사 흥진티엔디 | The instrument that change block lifter´s course for building a ship |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS502098U (en) * | 1973-05-04 | 1975-01-10 | ||
JPS5636880U (en) * | 1979-08-30 | 1981-04-08 |
-
1987
- 1987-06-16 JP JP62149960A patent/JP2553353B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS502098U (en) * | 1973-05-04 | 1975-01-10 | ||
JPS5636880U (en) * | 1979-08-30 | 1981-04-08 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101042555B1 (en) * | 2009-07-29 | 2011-06-20 | 주식회사 흥진티엔디 | The instrument that change block lifter´s course for building a ship |
Also Published As
Publication number | Publication date |
---|---|
JP2553353B2 (en) | 1996-11-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |