JPS5654316A - Detector for concrete ceiling end level - Google Patents
Detector for concrete ceiling end levelInfo
- Publication number
- JPS5654316A JPS5654316A JP12994079A JP12994079A JPS5654316A JP S5654316 A JPS5654316 A JP S5654316A JP 12994079 A JP12994079 A JP 12994079A JP 12994079 A JP12994079 A JP 12994079A JP S5654316 A JPS5654316 A JP S5654316A
- Authority
- JP
- Japan
- Prior art keywords
- expansion
- concrete
- casing
- wire
- fitted
- 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
Abstract
PURPOSE: To obtain a detector that can detect the ceiling level of concrete automatically by providing an expansion body with an expansion distance detecting method, contact detecting method etc.
CONSTITUTION: Each cap 14 is fitted covering tip 12a of expansion pipe 12 inserted into protective cylinder 11 and the tip connecting with plastics-made wire 13 and the base end of protective cylinder 11 is fitted to casing 16 of expansion-body driving mechanism 15 by screw 17. Then, wire 13 is wound around plastics-made reel 19 in casing 16 and to outer circumferential surface 19b of reel 19, black-and- white stripe tape 31 is stuck at constant intervals. As motor 28 is actuated, wire 13 and expansion pipe 12 expand and a pulse is generated every time the strip of tape 31 passes by reflection type photosensor 32 fitted to casing 16. For this purpose, those pulses are counted until earth metal cap 14 meets the ceiling end of concrete, so that the ceiling level of concrete will be measured.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12994079A JPS5654316A (en) | 1979-10-11 | 1979-10-11 | Detector for concrete ceiling end level |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12994079A JPS5654316A (en) | 1979-10-11 | 1979-10-11 | Detector for concrete ceiling end level |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5654316A true JPS5654316A (en) | 1981-05-14 |
Family
ID=15022187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12994079A Pending JPS5654316A (en) | 1979-10-11 | 1979-10-11 | Detector for concrete ceiling end level |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5654316A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02304194A (en) * | 1989-05-18 | 1990-12-17 | Mitsubishi Kensetsu Kk | Excavator for reverse construction method |
JPH0365607A (en) * | 1989-08-02 | 1991-03-20 | Kajima Corp | Measuring method of top end of concrete |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5114907A (en) * | 1974-07-30 | 1976-02-05 | Kao Corp | TOMEISETSUKENSOSEIBUTSU |
JPS51149658A (en) * | 1975-06-16 | 1976-12-22 | Hitachi Ltd | Machine hand to transfer parts |
-
1979
- 1979-10-11 JP JP12994079A patent/JPS5654316A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5114907A (en) * | 1974-07-30 | 1976-02-05 | Kao Corp | TOMEISETSUKENSOSEIBUTSU |
JPS51149658A (en) * | 1975-06-16 | 1976-12-22 | Hitachi Ltd | Machine hand to transfer parts |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02304194A (en) * | 1989-05-18 | 1990-12-17 | Mitsubishi Kensetsu Kk | Excavator for reverse construction method |
JPH0565680B2 (en) * | 1989-05-18 | 1993-09-20 | Mitsubishi Kensetsu Kk | |
JPH0365607A (en) * | 1989-08-02 | 1991-03-20 | Kajima Corp | Measuring method of top end of concrete |
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