JPS5648506A - Measuring device for elongation - Google Patents

Measuring device for elongation

Info

Publication number
JPS5648506A
JPS5648506A JP12560479A JP12560479A JPS5648506A JP S5648506 A JPS5648506 A JP S5648506A JP 12560479 A JP12560479 A JP 12560479A JP 12560479 A JP12560479 A JP 12560479A JP S5648506 A JPS5648506 A JP S5648506A
Authority
JP
Japan
Prior art keywords
tape
pair
elongation
light shielding
luminous flux
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
JP12560479A
Other languages
Japanese (ja)
Inventor
Tomiki Sakurai
Toshio Watanabe
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.)
Toyoda Koki KK
Original Assignee
Toyoda Koki 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 Toyoda Koki KK filed Critical Toyoda Koki KK
Priority to JP12560479A priority Critical patent/JPS5648506A/en
Publication of JPS5648506A publication Critical patent/JPS5648506A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To ensure an accurate measurement of the distance, by installing a projector which generates the luminous flux in the direction crossing the direction of elongation plus a pair of light shielding plates at a pair of marks and thus securing an irradiation of the luminous flux according to the distance between those marks to the light receiver.
CONSTITUTION: The projector consisting of the slit plate 24 containing the lamp 22, lens 23 and longitudinal slit 25 is provided at the left of the elongating device 11; and thus the luminous flux is thrown into the direction vertical to the direction of elongation of the tape T. And a pair of light shielding plates 36 and 37 comprising the attachment parts 36a and 37a having a width corresponding to the width of the tape T and a decreasing width toward the tensile direction of the tape T plus the light shielding parts 36b and 37b protruding from the fringe of the tape T are attached on the side of the tape T by the hairpin-shaped fixing clip and at a pair of mark positions P1 and P2 which are apart up and down from the center of the tape T by a prescribed distance. Thus the luminous fluxes other than those of the points P1 and P2 are prevented from reaching the light receiver 33.
COPYRIGHT: (C)1981,JPO&Japio
JP12560479A 1979-09-28 1979-09-28 Measuring device for elongation Pending JPS5648506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12560479A JPS5648506A (en) 1979-09-28 1979-09-28 Measuring device for elongation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12560479A JPS5648506A (en) 1979-09-28 1979-09-28 Measuring device for elongation

Publications (1)

Publication Number Publication Date
JPS5648506A true JPS5648506A (en) 1981-05-01

Family

ID=14914231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12560479A Pending JPS5648506A (en) 1979-09-28 1979-09-28 Measuring device for elongation

Country Status (1)

Country Link
JP (1) JPS5648506A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61269008A (en) * 1985-05-23 1986-11-28 Shimadzu Corp Elongation-measuring apparatus for test piece
JPH03229106A (en) * 1990-02-05 1991-10-11 Yokohama Norin Kikaku Kensashiyochiyou Yarn irregularity inspecting method
JPH03251707A (en) * 1990-02-28 1991-11-11 Shimadzu Corp Projection type displacement meter and material testing machine having the same therein

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61269008A (en) * 1985-05-23 1986-11-28 Shimadzu Corp Elongation-measuring apparatus for test piece
JPH0739936B2 (en) * 1985-05-23 1995-05-01 株式会社島津製作所 Test piece elongation measuring device
JPH03229106A (en) * 1990-02-05 1991-10-11 Yokohama Norin Kikaku Kensashiyochiyou Yarn irregularity inspecting method
JPH03251707A (en) * 1990-02-28 1991-11-11 Shimadzu Corp Projection type displacement meter and material testing machine having the same therein

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