JPS5654316A - Detector for concrete ceiling end level - Google Patents

Detector for concrete ceiling end level

Info

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
Application number
JP12994079A
Other languages
Japanese (ja)
Inventor
Takashi Mitsubiki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujita Corp
Original Assignee
Fujita Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujita Corp filed Critical Fujita Corp
Priority to JP12994079A priority Critical patent/JPS5654316A/en
Publication of JPS5654316A publication Critical patent/JPS5654316A/en
Pending legal-status Critical Current

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
JP12994079A 1979-10-11 1979-10-11 Detector for concrete ceiling end level Pending JPS5654316A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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