JPS5949274U

JPS5949274U - paper leaf

Info

Publication number: JPS5949274U
Application number: JP12779083U
Authority: JP
Inventors: 宏安藤; 菅原　時男; 正雄塩田
Original assignee: 富士電機株式会社
Priority date: 1983-08-18
Filing date: 1983-08-18
Publication date: 1984-04-02

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

[Brief explanation of the drawing]

第１図は従来技術による紙幣厚み検知装置の原理を示す
図、第２図ａおよびｂはテープで継ぎ合わせた紙幣の例
を示す図、第３図ａは本考案に係る継ぎ目検知の原理を
示す部分的構成図、第３図すはその概略断面図、第４図
ａおよびｂは光マスクの例を示す図、第５図ａないＩ、
ｅは受光装置が　　　□受ける光がマスクの位置によっ
てどのように変化するかを示す図、第６図ａないしｅは
マスク取付けを図解する図、第７図ａないしｈは規制手
段として光導体を利用した例を示す図、第８図ａないし
ｂは規制手段として発光装置と紙葉片との間にレンズを
挿入した例を示す図、第９図ａおよびｂは継ぎ目検出用
電気回路の例を示す図、第１０図ａ　”−’　ｅは検出
波形を示す図、第１１図ａおよびｂはマスクの作用を説
明するのに有用な図、第１２図ａないしＣは判定手段の
いくつかの例を示す図、第１３図ａないしｄは判定手段
の他のいくつかの例を示す図、第１４図は特殊な継ぎ目
を有する紙葉片の例を示す図である。１・・・・・・紙葉片、６・・・・・・テープ、７・・
・・・・継ぎ目、８・・・・・・発光装置、９・・・・
・・受光装置、１０．１１・・・・・・壁部材、１２．
１３・・・・・・孔、１４・・・・・・マスク、１５・
・・・・・光学繊維、１６・・・・・・レンズ、１８・
・・・・・比較回路、２０・・・・・・フィルタ、２１
・・・・・・微分回路、２２・・・・・・ＶＰ２変化分
検出比較回路、２３・・・・・・基準値設定器、２４・
・・・・・パルス積算器、２５・・・・・・判定回路。Figure 1 is a diagram showing the principle of a banknote thickness detection device according to the prior art, Figures 2a and b are diagrams showing an example of banknotes spliced with tape, and Figure 3a is a diagram showing the principle of seam detection according to the present invention. FIG. 3 is a schematic sectional view thereof, FIG. 4 a and b are views showing examples of optical masks, and FIG.
e is a diagram showing how the light received by the light receiving device changes depending on the position of the mask, Figures 6 a to e are diagrams illustrating mask attachment, and Figures 7 a to h are diagrams showing how the light guide is used as a regulating means. Figures 8a and 8b show an example in which a lens is inserted between a light emitting device and a piece of paper as a regulating means, and Figures 9a and b show an example of an electric circuit for seam detection. Figures 10a-'e are diagrams showing detected waveforms, Figures 11a and b are diagrams useful for explaining the action of the mask, and Figures 12a to 12c are diagrams showing some of the determination means. Figures 13a to 13d are diagrams illustrating some other examples of the determination means, and Figure 14 is a diagram illustrating an example of a paper leaf having a special seam.1...・Paper leaf, 6...Tape, 7...
... Seam, 8... Light emitting device, 9...
... Light receiving device, 10.11 ... Wall member, 12.
13...hole, 14...mask, 15.
...Optical fiber, 16...Lens, 18.
... Comparison circuit, 20 ... Filter, 21
... Differentiation circuit, 22 ... VP2 change detection comparison circuit, 23 ... Reference value setter, 24.
...Pulse integrator, 25...Judgment circuit.

Claims

[Scope of utility model registration request]

(1) At least a pair of light-emitting device and light-receiving device are arranged to sandwich the conveyance path through which the paper leaf passes, and the light transmitted through a predetermined area of the paper leaf is interposed between the light-emitting device and the light-receiving device. The present invention includes a regulating means for restricting transmitted light so as to be incident on the light receiving surface of the light receiving device, and a determining means for determining the presence or absence of a seam between paper sheets based on an output signal of the light receiving device that changes depending on the amount of received light. A paper leaf identification device featuring:

(2) Utility Model Registration Scope of Claims 1. In the apparatus according to claim 1, the regulating means is provided at least between a paper leaf passing through the conveyance path and a light receiving device, and has a mask having a slit facing the light receiving surface of the light receiving device. A paper leaf identification device characterized by being made of a board.

(3) Utility Model Registration Scope of Claims 1. In the apparatus according to claim 1, the regulating means is located between at least a paper leaf passing through a conveyance path and a light receiving device, and the regulating means is arranged to transmit light transmitted through a predetermined area of the paper leaf to the light receiving device. A paper leaf identification device characterized by being made of a light guiding material.

(4) Utility Model Registration Scope of Claims In the apparatus according to claim 1, the regulating means is located between the paper leaf passing through the conveyance path and the light emitting device, and directs the light irradiated by the light emitting device to a predetermined area of the paper leaf. A paper leaf identification device characterized by comprising a lens that condenses light.

(5) In the device according to claims 1 to 4 of the utility model registration claim, the determining means includes a filter for extracting a signal of a predetermined frequency from the output signal of the light receiving device;
A paper sheet identification device comprising: a comparison circuit that outputs a certain signal when the output of the filter exceeds a predetermined reference level.

(6) Utility Model Registration In the device according to claims 1 to 4, the determining means detects a change in the output of the light receiving device that is larger than a predetermined level, and outputs a constant pulse signal.E change detection comparison A circuit, a pulse integrator that integrates the pulse signals output by the comparison circuit, and a reference value setter for setting the number of pulses for normal paper sheets,
A paper leaf identification device, characterized in that the integrated value of the pulse integrator is compared with a preset reference number of pulses to determine the presence or absence of a seam in the paper leaf.