JPS5777716A - Driving device for sand pile - Google Patents
Driving device for sand pileInfo
- Publication number
- JPS5777716A JPS5777716A JP15283680A JP15283680A JPS5777716A JP S5777716 A JPS5777716 A JP S5777716A JP 15283680 A JP15283680 A JP 15283680A JP 15283680 A JP15283680 A JP 15283680A JP S5777716 A JPS5777716 A JP S5777716A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- outer cylinder
- vibrator
- sand
- piston rod
- 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
Abstract
PURPOSE: To more firmly tamp sand pressed closely in an outer cylinder, by a method wherein a hydraulic cylinder for driving inner cylinders is mounted at the upper end of the outer cylinder, is secured through the piercing of the hollow piston rod of the hydraulic cylinder through a lower of a vibrator.
CONSTITUTION: Through the movement of a piston rod 2b to an upper limit position with a hydraulic cylinder 2 for driving inner cylinders actuated, vibration transmission means 20 and 22 are brought into an engaged state to monolithically unite a vibrator 4 with an outer cylinder 1. After the outer cylinder 1 and an inner cylinder 5 are inserted into a ground with the vibrator 4 operated, sand is charged through a hopper 9 into the outer cylinder 1. The vibrator 4 is disconnected from the outer cylinder 1 to vertically vibrate only the inner cylinder. Meanwhile, the upper limit position of the stroke of the hydraulic cylinder 2 is set at a somewhat lower level than that of the initial position, and the piston rod 2b is elevated to the extent that the vibration means are brought into no engaging state. This causes the inner cylinder 5 to vertically move independently from the vertical movement produced by the vibrator 4. The outer cylinder 1 is pulled off gradually as sand in the outer cylinder 1 is tamped by the inner cylinder 5.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15283680A JPS5810528B2 (en) | 1980-10-29 | 1980-10-29 | sand pile creation equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15283680A JPS5810528B2 (en) | 1980-10-29 | 1980-10-29 | sand pile creation equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5777716A true JPS5777716A (en) | 1982-05-15 |
JPS5810528B2 JPS5810528B2 (en) | 1983-02-26 |
Family
ID=15549187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15283680A Expired JPS5810528B2 (en) | 1980-10-29 | 1980-10-29 | sand pile creation equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5810528B2 (en) |
-
1980
- 1980-10-29 JP JP15283680A patent/JPS5810528B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5810528B2 (en) | 1983-02-26 |
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