JPS58187493U - Drum diameter change detection device - Google Patents

Drum diameter change detection device

Info

Publication number
JPS58187493U
JPS58187493U JP8476282U JP8476282U JPS58187493U JP S58187493 U JPS58187493 U JP S58187493U JP 8476282 U JP8476282 U JP 8476282U JP 8476282 U JP8476282 U JP 8476282U JP S58187493 U JPS58187493 U JP S58187493U
Authority
JP
Japan
Prior art keywords
drum
diameter
detection device
detection
diameter change
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
JP8476282U
Other languages
Japanese (ja)
Inventor
保彦 金谷
民雄 大谷
小出 博一
Original Assignee
日立精工株式会社
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 日立精工株式会社 filed Critical 日立精工株式会社
Priority to JP8476282U priority Critical patent/JPS58187493U/en
Publication of JPS58187493U publication Critical patent/JPS58187493U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案によるドラム径変化検出装置の一実施例
を示す図、第2図は第1図の検出機構の一例を示す図、
第3Niよび第4図は検出機構の他の実施例をそれぞれ
示す図である。 1・・・・・・ドラム、2・・・・・・用紙、3・・・
・・・プレート、4及び4′・・・・・・検出点、5・
・・・・・光学的検出機構、9・・・−・−機械的検出
機構、11・・・・・・電気的検出機構、20・・・・
・・回転角検出!JL−,3−0・・・・・・演算回路
FIG. 1 is a diagram showing an embodiment of the drum diameter change detection device according to the present invention, FIG. 2 is a diagram showing an example of the detection mechanism of FIG. 1,
FIGS. 3 and 4 are diagrams showing other embodiments of the detection mechanism, respectively. 1...Drum, 2...Paper, 3...
...Plate, 4 and 4'...Detection point, 5.
...Optical detection mechanism, 9...-Mechanical detection mechanism, 11...Electrical detection mechanism, 20...
・Rotation angle detection! JL-, 3-0... Arithmetic circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 円柱形状のドラムに巻付けられたシートにより変化した
ドラムの径変化を検出するドラム径変化検出装置におい
て、所定間隔で複数の検出点が設けられていると共にド
ラム上のシートにドラム円周方向に沿って巻付けられる
プレートと、前記ドラムの回転により移動するプレート
上の検出点を少なくとも2点検出するまでのドラム回転
角を検出する回転角検出機構と、前記回転角検出機構に
より得られた回転角と検出点間隔とドラム径を用いてシ
ートの巻付けにより変化したドラムの径を演算する演算
回路とを備えることを特徴とするドラム径変化検出装置
In a drum diameter change detection device that detects changes in the diameter of a drum caused by a sheet wrapped around a cylindrical drum, a plurality of detection points are provided at predetermined intervals, and a plurality of detection points are provided on the sheet on the drum in the drum circumferential direction. a rotation angle detection mechanism that detects a drum rotation angle until detecting at least two detection points on the plate that moves as the drum rotates; and a rotation obtained by the rotation angle detection mechanism. What is claimed is: 1. A drum diameter change detection device comprising: an arithmetic circuit that calculates the diameter of the drum changed by winding a sheet using the angle, the detection point interval, and the drum diameter.
JP8476282U 1982-06-09 1982-06-09 Drum diameter change detection device Pending JPS58187493U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8476282U JPS58187493U (en) 1982-06-09 1982-06-09 Drum diameter change detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8476282U JPS58187493U (en) 1982-06-09 1982-06-09 Drum diameter change detection device

Publications (1)

Publication Number Publication Date
JPS58187493U true JPS58187493U (en) 1983-12-13

Family

ID=30093688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8476282U Pending JPS58187493U (en) 1982-06-09 1982-06-09 Drum diameter change detection device

Country Status (1)

Country Link
JP (1) JPS58187493U (en)

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