JPS5696207A - Electronic tape measure - Google Patents

Electronic tape measure

Info

Publication number
JPS5696207A
JPS5696207A JP17144079A JP17144079A JPS5696207A JP S5696207 A JPS5696207 A JP S5696207A JP 17144079 A JP17144079 A JP 17144079A JP 17144079 A JP17144079 A JP 17144079A JP S5696207 A JPS5696207 A JP S5696207A
Authority
JP
Japan
Prior art keywords
tape measure
pulse signal
wire
pulley
accurately
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
JP17144079A
Other languages
Japanese (ja)
Inventor
Kazuo Hara
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.)
S R D KK
Original Assignee
S R D KK
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 S R D KK filed Critical S R D KK
Priority to JP17144079A priority Critical patent/JPS5696207A/en
Publication of JPS5696207A publication Critical patent/JPS5696207A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE: To carry out measurement quickly and accurately by a method wherein a pulse is generated correspondingly to a delivery length of distance measuring wire for a tape measure at a given interval, and the pulse signal is divided to counting.
CONSTITUTION: A wire 5 drawn out of a tape measure reel 4 is wound on a pulley 6 and coupled to an external measuring terminal 5 on a side wall 1 of the tape measure. A disk 8 provided with slits 8 is mounted on a rotary shaft 3 of the pulley 6, and a pulse signal corresponding to rotations of the disk 8 is outputted through a pulse signal generator 7 consisting of a light source and a photoelectric cell 9. The pulse signal generated correspondingly to a delivery length of the wire 5 is divided on a frequency dividing circuit 10, and a length corresponding to a count of the output is indicated on a display 11. Thus the measurement can be made quickly and accurately.
COPYRIGHT: (C)1981,JPO&Japio
JP17144079A 1979-12-29 1979-12-29 Electronic tape measure Pending JPS5696207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17144079A JPS5696207A (en) 1979-12-29 1979-12-29 Electronic tape measure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17144079A JPS5696207A (en) 1979-12-29 1979-12-29 Electronic tape measure

Publications (1)

Publication Number Publication Date
JPS5696207A true JPS5696207A (en) 1981-08-04

Family

ID=15923154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17144079A Pending JPS5696207A (en) 1979-12-29 1979-12-29 Electronic tape measure

Country Status (1)

Country Link
JP (1) JPS5696207A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128515U (en) * 1983-02-19 1984-08-29 国際制御株式会社 Linear scale for machines with moving parts
JPS6042907U (en) * 1983-08-31 1985-03-26 樋口　昭雄 tape measure
US4532709A (en) * 1984-10-22 1985-08-06 Westinghouse Electric Corp. High precision electronic digital measurement system wound on constant-torque-controlled drum
US5035064A (en) * 1986-07-19 1991-07-30 Care Ronald J Linear measuring devices
JPH0430412U (en) * 1990-07-05 1992-03-11
US5743021A (en) * 1996-02-06 1998-04-28 Corcoran; Bradley H. Digital length gauge
KR101104695B1 (en) 2009-11-04 2012-01-19 한국표준과학연구원 Displacement sensor with aperture

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128515U (en) * 1983-02-19 1984-08-29 国際制御株式会社 Linear scale for machines with moving parts
JPS6042907U (en) * 1983-08-31 1985-03-26 樋口　昭雄 tape measure
US4532709A (en) * 1984-10-22 1985-08-06 Westinghouse Electric Corp. High precision electronic digital measurement system wound on constant-torque-controlled drum
US5035064A (en) * 1986-07-19 1991-07-30 Care Ronald J Linear measuring devices
JPH0430412U (en) * 1990-07-05 1992-03-11
US5743021A (en) * 1996-02-06 1998-04-28 Corcoran; Bradley H. Digital length gauge
KR101104695B1 (en) 2009-11-04 2012-01-19 한국표준과학연구원 Displacement sensor with aperture

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