JPH0318474Y2 - - Google Patents
Info
- Publication number
- JPH0318474Y2 JPH0318474Y2 JP4944687U JP4944687U JPH0318474Y2 JP H0318474 Y2 JPH0318474 Y2 JP H0318474Y2 JP 4944687 U JP4944687 U JP 4944687U JP 4944687 U JP4944687 U JP 4944687U JP H0318474 Y2 JPH0318474 Y2 JP H0318474Y2
- Authority
- JP
- Japan
- Prior art keywords
- hoisting
- winding
- auxiliary
- main
- lever
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 152
- 238000009412 basement excavation Methods 0.000 description 30
- 230000007935 neutral effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Control And Safety Of Cranes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4944687U JPH0318474Y2 (en]) | 1987-03-31 | 1987-03-31 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4944687U JPH0318474Y2 (en]) | 1987-03-31 | 1987-03-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63157089U JPS63157089U (en]) | 1988-10-14 |
JPH0318474Y2 true JPH0318474Y2 (en]) | 1991-04-18 |
Family
ID=30871904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4944687U Expired JPH0318474Y2 (en]) | 1987-03-31 | 1987-03-31 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0318474Y2 (en]) |
-
1987
- 1987-03-31 JP JP4944687U patent/JPH0318474Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS63157089U (en]) | 1988-10-14 |
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