JPS60186982A - Double feed detector for card, paper, or the like - Google Patents

Double feed detector for card, paper, or the like

Info

Publication number
JPS60186982A
JPS60186982A JP4245384A JP4245384A JPS60186982A JP S60186982 A JPS60186982 A JP S60186982A JP 4245384 A JP4245384 A JP 4245384A JP 4245384 A JP4245384 A JP 4245384A JP S60186982 A JPS60186982 A JP S60186982A
Authority
JP
Japan
Prior art keywords
card
detection plate
double feed
cards
sensor
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
JP4245384A
Other languages
Japanese (ja)
Inventor
Masahito Hodai
将人 宝代
Satoshi Yokozawa
横沢 敏
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.)
PHOENIX DENSHI KK
Original Assignee
PHOENIX DENSHI 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 PHOENIX DENSHI KK filed Critical PHOENIX DENSHI KK
Priority to JP4245384A priority Critical patent/JPS60186982A/en
Publication of JPS60186982A publication Critical patent/JPS60186982A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/02Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
    • G06K13/06Guiding cards; Checking correct operation of card-conveying mechanisms
    • G06K13/067Checking presence, absence, correct position, or moving status of cards

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Conveying Record Carriers (AREA)

Abstract

PURPOSE:To detect double feed securely while increasing the turning displacement of a double feed detection plate by detecting whether the double feed is caused or not as the turning displacement. CONSTITUTION:When two cards 2 and 2 are fed together in a card feed passage 1, the two cards 2 are inserted into the gap between an idle roller 6 and the arcuate part 13C of the detection plate 13 at the same time. Consequently, the frictional force between the idle roller 6 and arcuate part 13C increases and the detection plate 13 turns against return spring force. Thus, the detection plate 13 turns and then a sectorial plate part 13B als turns A sensor operation part 13G enters the U-shaped groove 19B of a sensor 19 to shield a photodetecting element 19D from light from a light emitting element 19C. Consequently, the sensor 19 outputs a double feed detection signal.

Description

【発明の詳細な説明】 本発明は、例えばカードリーダ、印刷機、ラベル貼機、
複写機等に用いられ、その送り通路途中でカード、印刷
用紙、複写用紙等の二重送りを確実に検出することがで
きるようにしたカード・紙類の二重送り検出装置に関す
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention is applicable to, for example, card readers, printing machines, labeling machines,
The present invention relates to a double feed detection device for cards and paper, which is used in copying machines and the like, and is capable of reliably detecting double feed of cards, printing paper, copy paper, etc. during the feeding path thereof.

一般に、カードリーグ、印刷機、ラベル貼機、複写機等
(以下、これらを「カードリーグ」という)にあっては
、カード、印刷用紙、複写用紙等(以下、これらを「カ
ード」という)をカード送り通路に沿ってカード読取り
部に@け1枚毎送り込む必要がある。このため、カード
を積層しておくカードホッパの近傍には、該カードホッ
パからカード送り通路に向けてカードを1枚毎送り出す
ための爪機構、または送り出し用ローラ機構が備えられ
ている。しかし、カードが静電気を帯びている場合や、
粘着性物質が付着している場合等には、前記爪機構、送
り出しローラ機構等を用いても、カードが二重送りされ
てしまうことがある。
In general, card leagues, printing machines, labeling machines, copying machines, etc. (hereinafter referred to as "card leagues") use cards, printing paper, copying paper, etc. (hereinafter referred to as "cards"). It is necessary to feed each card into the card reading section along the card feeding path. For this reason, a claw mechanism or a feeding roller mechanism is provided near the card hopper in which the cards are stacked, for feeding the cards one by one from the card hopper toward the card feeding path. However, if the card is charged with static electricity,
If a sticky substance is attached, the card may be fed twice even if the claw mechanism, feeding roller mechanism, etc. are used.

このため、従来技術によるカードリーダにおいても、カ
ード送り通路の途中に、固定ローラと、カードの厚みに
応じて該固定ローラに対する隙間が変化するようにカー
ド送り通路と直交方向に変位する可動ローラと、該可動
ローラの変位を検出する変位検出器とからなるカード二
重送り検出装置を配設したものが知られている。そして
、カードが1枚毎に正規に送られてきたときには、可動
ローラの変位は許容値内であると判定してカード読取り
部処送り込み、二重送りされたときには可動ローラが2
枚分だけ変位するから、変位検出器がこれを検出し、リ
ジェクトカードとしてリジェクト用スタ)ツカに排出す
る構成となっている。
Therefore, in the card reader according to the prior art, there is a fixed roller in the middle of the card feeding path, and a movable roller that is displaced in a direction perpendicular to the card feeding path so that the gap with respect to the fixed roller changes depending on the thickness of the card. It is known that a card double feed detection device is provided, which includes a displacement detector that detects the displacement of the movable roller. When the cards are fed normally one by one, it is determined that the displacement of the movable roller is within the allowable value and the card is sent to the card reading section, and when the cards are fed twice, the movable roller moves two times.
Since the card is displaced by the amount of the card, the displacement detector detects this and discharges the card into a reject stack as a reject card.

しかし、上記従来技術によるものは、カードの厚さに応
じて可動ローラが変位する変位量な検出するものである
ため、次のような欠点があった。
However, the conventional technique described above has the following drawbacks because it detects the amount of displacement of the movable roller depending on the thickness of the card.

第1に、可動ローラの変位はカードの厚み分しかないた
め、高精度な変位検出器が必要であるという欠点がある
。第2K、カードの種類に応じて厚みが異なるから、変
位検出器の設定が非常に煩雑であり、また検出精度の維
持が困難であるという欠点がある。第3K、前述した各
欠点を改良するために、可動ローラな支点な中心として
揺動する揺動アームの一側に取付け、その他側に変位検
出器を取付けるようにした拡大機構付の二重送り検出装
置も知られているが、かかる構成とした場合には構成が
複雑となるばかりでなく、拡大率を大きくすればするほ
どテンションばねのばね力を大きくしな(てはならず、
カード送りに支障をきたしやすいという欠点がある。
First, since the displacement of the movable roller is only equal to the thickness of the card, there is a drawback that a highly accurate displacement detector is required. Second, since the thickness varies depending on the type of card, there are disadvantages in that the setting of the displacement detector is very complicated and it is difficult to maintain detection accuracy. 3rd K. In order to improve each of the above-mentioned drawbacks, a double feed with an enlargement mechanism is installed on one side of the swinging arm that swings as the center of the movable roller fulcrum, and a displacement detector is mounted on the other side. A detection device is also known, but such a configuration not only makes the configuration complicated, but also requires increasing the spring force of the tension spring as the magnification increases.
The disadvantage is that it tends to interfere with card feeding.

本発明は、前述した従来技術の欠点に鑑みなされたもの
で、二重送りの有無を二重送り検知板の回動変位として
直接検出しうるようにすることにより、回動賛位を大き
くとることができ、かつ二重送りを確実に検出しうるよ
うにしたカード・紙類の二重送り検出装置を提供するこ
とを目的とする。
The present invention was made in view of the drawbacks of the prior art described above, and the presence or absence of double feed can be directly detected as the rotational displacement of the double feed detection plate, thereby increasing the rotational displacement. It is an object of the present invention to provide a double feeding detection device for cards and papers that can detect double feeding with certainty.

上記目的を達成するために、本発明は、カード紙類の送
り通路の途中に回動自在に軸支されたアイドルローラと
、該送り通路を挾んで該アイドルローラと対向する位置
に回動可能に軸支された二重送り検知板と、該検知板が
回動したことを検出するセンサとを備え、前記二重送り
検知板は前記アイドルローラとの間にカード・紙類が1
枚だけ通過するのを許すように外周が円弧状となった円
弧部と、カード・紙類が複数枚送られてきたときには前
記アイドルローラとの間の摩擦力により回動し、当該複
数枚のカード・紙類の通過を許すように外周が前記円弧
部に連続する平面となった平面部と、前記円弧部から平
面部に回動したとき前記センサを作動せしめるセンサ作
動部とから形成したことにある。
In order to achieve the above object, the present invention includes an idle roller rotatably supported in the middle of a card paper feeding path, and an idle roller that can be rotated to a position facing the idle roller across the feeding path. The double feed detection plate is equipped with a double feed detection plate pivotally supported by the roller, and a sensor for detecting rotation of the detection plate, and the double feed detection plate is provided with a card or paper between the idle roller and the idle roller.
When a plurality of cards/papers are sent, the circular arc part whose outer periphery is circular to allow only one card to pass through, and the idle roller rotates due to the frictional force between the plurality of cards/papers. It is formed of a flat part whose outer periphery is a flat surface continuous to the circular arc part so as to allow passage of cards and papers, and a sensor actuating part that activates the sensor when rotated from the circular arc part to the flat part. It is in.

以下、本発明の実施例を第1図ないし第4図に基づき詳
述する。
Embodiments of the present invention will be described in detail below with reference to FIGS. 1 to 4.

第1図ないし第3図は本発明の第1の実施例を示し、図
中1,1はカード送り通路を示し、該送り通路1内をカ
ード2が図中矢示A方向に通過するようになっている。
1 to 3 show a first embodiment of the present invention. In the figures, 1 and 1 indicate a card feeding path, and a card 2 passes through the feeding path 1 in the direction of arrow A in the drawings. It has become.

3は全体としてL字状をしたアームで、該アーム3は口
字状の軸取付部3Aと、該軸取付部3Aの前端から図中
下方に延びるアイドルローラ取付部3Bと、軸取付部3
Aから図中左方に延出するストッパ部3Cとから形成さ
れている。4は水平方向に配置されたアーム支持軸で、
該支持軸4の一端側は機枠(図示せず)に固着され、そ
の他端側は小径部4Aとなって軸取付部3Aが回動自在
に軸支されている。5はアーム3のアイドルローラ取付
部3Bに固着されたアイドルローラ支持軸で、該支持軸
5にアイドルローラ6が軸受を介して回転自在に取付け
られている。7はL字状の板からなる隙間調整ねじ取付
用の取付板で、該取付板7上面のねじ穴には隙間調整ね
じ8が上下方向に螺出入可能に螺着されている。そして
、該隙間調整ねじ8の先端部8Aはアーム3のスト、パ
部3Cの左端側上面に当接し、該隙間調整ねじ8を螺回
することにより、該アーム3はアーム支持軸4を支点と
して回動するようになされている。9はカード2が3枚
以上通過する時初めて伸長する強ばねからなる引張ばね
で、該引張はね9の一端は機枠に固着されたピン10に
取付けられ、その他端はアーム3のストッパ部3C中間
位置に取付けられ、該スト、パ部3cを隙間調整ねじ8
の先端部8AK常時当接せしめるように付勢している。
Reference numeral 3 denotes an arm having an L-shape as a whole, and the arm 3 includes an opening-shaped shaft mounting portion 3A, an idle roller mounting portion 3B extending downward in the figure from the front end of the shaft mounting portion 3A, and a shaft mounting portion 3.
It is formed from a stopper portion 3C extending from A to the left in the figure. 4 is an arm support shaft arranged horizontally,
One end of the support shaft 4 is fixed to a machine frame (not shown), and the other end forms a small diameter portion 4A on which a shaft attachment portion 3A is rotatably supported. Reference numeral 5 denotes an idle roller support shaft fixed to the idle roller attachment portion 3B of the arm 3, and an idle roller 6 is rotatably attached to the support shaft 5 via a bearing. Reference numeral 7 denotes a mounting plate made of an L-shaped plate for mounting a clearance adjustment screw, and a clearance adjustment screw 8 is screwed into a screw hole on the upper surface of the mounting plate 7 so as to be able to be screwed in and out in the vertical direction. The tip end 8A of the gap adjustment screw 8 comes into contact with the upper surface of the left end side of the stopper part 3C of the arm 3, and by screwing the gap adjustment screw 8, the arm 3 is moved around the arm support shaft 4 as a fulcrum. It is designed to rotate as follows. Reference numeral 9 denotes a tension spring made of a strong spring that expands only when three or more cards 2 pass. One end of the tension spring 9 is attached to a pin 10 fixed to the machine frame, and the other end is attached to a stopper portion of the arm 3. 3C is installed at the intermediate position, and the gap adjustment screw 8
The tip portion 8AK is biased so as to be in constant contact with the tip portion 8AK.

11はカード送り通路1を挾んでアーム3と対向する側
に配設された二重送り検知板取付用の取付板、12はカ
ード送り通路1と直交する垂直ML−L上であって、か
つアーム支持軸4と平行に配置された二重送り検知板支
持軸で、該支持軸12の一端側は前記取付板11に固着
され、その他端側は中径部12A、小径部12Bとなっ
ている。13は前記支持軸12の中径部12AK回動自
在に軸支された二重送り検知板(以下、「検知板13」
という)、14は小径部12BK回動自在に軸支された
回動力調整部材、15は該調整部材14の外周に設けら
れたねじりコイルからなる復帰ばねで、該復帰はね15
の一端は検知板13に取付けられ、その他端は回動力調
整部材14の左端餞に取付けられ、カード2が二重送り
されたときのみ、該復帰はね15に抗して検知板13が
回動する程度の弱いばね力となっている。16は回動力
調整S材14を支持軸121C固定するための固定用ね
じ、17は回動力調整部材14が支持軸12から抜ける
のを防止するための止め輪、18は取付板11に固着さ
れたストッパビンで、該スト、バピン18は支持軸12
と平行に検知板13に向けて延在している。
Reference numeral 11 denotes a mounting plate for attaching a double feed detection plate disposed on the side facing the arm 3 across the card feed path 1, and 12 is on the vertical ML-L orthogonal to the card feed path 1, and A double feed detection plate support shaft is arranged parallel to the arm support shaft 4, one end of the support shaft 12 is fixed to the mounting plate 11, and the other end is a medium diameter portion 12A and a small diameter portion 12B. There is. Reference numeral 13 denotes a double feed detection plate (hereinafter referred to as "detection plate 13") rotatably supported on the middle diameter portion 12AK of the support shaft 12.
), 14 is a rotational force adjustment member rotatably supported by the small diameter portion 12BK, 15 is a return spring consisting of a torsion coil provided on the outer periphery of the adjustment member 14;
One end is attached to the detection plate 13, and the other end is attached to the left end clamp of the rotating force adjustment member 14, so that the detection plate 13 rotates against the return spring 15 only when the card 2 is fed double. The spring force is weak enough to cause movement. 16 is a fixing screw for fixing the rotational force adjustment member 14 to the support shaft 121C; 17 is a retaining ring for preventing the rotational force adjustment member 14 from coming off the support shaft 12; and 18 is fixed to the mounting plate 11. With the stopper pin 18, the stopper pin 18 is connected to the support shaft 12.
It extends parallel to the detection plate 13.

19は取付板11に取付けられたセンサで、該センサ1
9はU字状のセンサ本体19Aと、該センサ本体19A
のU字溝19Bを挾んで対向して設けられた発光素子1
9C1受光素子19Dとからなる光学式センサが用〜・
られる。
19 is a sensor attached to the mounting plate 11;
9 is a U-shaped sensor body 19A;
The light emitting elements 1 are provided facing each other with the U-shaped groove 19B between them.
An optical sensor consisting of a 9C1 light receiving element 19D is used.
It will be done.

ここで、前述した検知板13は互いに対向する2個の扇
状板部13A、13Bから大略形成される。そして、一
方の扇状板部13Aは第2図に示す如く厚板状となり、
アイドルローラ6との間にカード2が1枚だけ通過する
のを許すように常時は該アイドルローラ6と対向する円
弧状外周面をもった円弧部13Cと、該円弧部13Cか
ら連続した平面となり、検知板13が図中矢示B方向に
回動したときKはアイドルローラ6と対向する平面部1
3Dと、さらに該平面部13Dを挾んで円弧部13Cと
対称な円弧部13Eとから形成される。即ち、扇状板部
13Aはその円弧状外周面の中間を平面部13Dをもっ
て切断した形状となっている。なお、円弧部13Eは加
工の都合上形成されるもので、実質的機能は有せず、該
円弧部13Eはこれを省略した形状としてもよいもので
ある。また、他方の扇状板部13Bは第2図に示す如く
センサ19のU字溝19B内に挿入される程度の薄板状
となり、常時はストッパビン18に当接して図中矢示方
向への回動を規制するストッパ部13Fと、検知板13
が図中矢示B方向に回動したときのみセンサ19の発光
素子19Cから受光素子19Dへの光の通過を遮断する
センサ作動部13Gとから形成されている。
Here, the above-mentioned detection plate 13 is generally formed from two fan-shaped plate portions 13A and 13B facing each other. Then, one fan-shaped plate portion 13A has a thick plate shape as shown in FIG.
In order to allow only one card 2 to pass between the idle roller 6 and the idle roller 6, there is always an arcuate portion 13C having an arcuate outer peripheral surface facing the idler roller 6, and a plane continuous from the arcuate portion 13C. , when the detection plate 13 rotates in the direction of arrow B in the figure, K is the flat part 1 facing the idle roller 6.
3D, and a circular arc portion 13E that is symmetrical to the circular arc portion 13C with the flat portion 13D in between. That is, the fan-shaped plate portion 13A has a shape obtained by cutting the middle of its arcuate outer circumferential surface with the flat portion 13D. Note that the arcuate portion 13E is formed for convenience of processing and has no substantial function, and the arcuate portion 13E may be omitted. As shown in FIG. 2, the other fan-shaped plate portion 13B has a thin plate shape that can be inserted into the U-shaped groove 19B of the sensor 19, and normally contacts the stopper pin 18 to prevent rotation in the direction of the arrow in the figure. The regulating stopper part 13F and the detection plate 13
The sensor operating portion 13G blocks the passage of light from the light emitting element 19C to the light receiving element 19D of the sensor 19 only when the sensor 19 rotates in the direction of arrow B in the figure.

さらに、本実施例では支持軸12の軸心01に対し、検
知板13の軸心02は距離δだけ図中右方(カード2の
進入側)に偏心するように、該支持軸12に軸支されて
いる。この結果、検知板13が矢示B方向に回動すると
き、アイドルローラ“6との間の隙間を狭めるように食
み込む如く回動し、カード2が二重送りされるとき該検
知板13の回動を確実ならしめている。
Further, in this embodiment, the axis 02 of the detection plate 13 is attached to the support shaft 12 so that the axis 02 of the detection plate 13 is eccentric to the right in the figure (toward the entrance side of the card 2) by a distance δ with respect to the axis 01 of the support shaft 12. supported. As a result, when the detection plate 13 rotates in the direction of arrow B, it rotates to narrow the gap between it and the idle roller "6," and when the card 2 is double-fed, the detection plate 13 rotation is ensured.

本実施例は前述の如く構成されるが、次にこの作動につ
いて述べる。
The present embodiment is constructed as described above, and its operation will be described next.

まず、固定用ねじ16を緩めて、回動力調整部材14を
矢示B方向またはC方向に回動し、復帰はね15のばね
力を適切なはね定数となるよう忙設定し、再び固定用ね
じ16を締めて該回動力調整部材14を支持軸12の小
径部12Bに固定する。この際、検知板13はそのスト
ッパ部13Fがストッパビン17に当接しているから、
矢示C方向に回動することはない。
First, loosen the fixing screw 16, rotate the rotating force adjustment member 14 in the direction of arrow B or C, set the spring force of the return spring 15 to an appropriate spring constant, and fix it again. The rotating force adjusting member 14 is fixed to the small diameter portion 12B of the support shaft 12 by tightening the screw 16. At this time, since the stopper portion 13F of the detection plate 13 is in contact with the stopper bin 17,
It does not rotate in the direction of arrow C.

次に、隙間調整ねじ8を螺回し、その先端部8AK、l
:ってアーム3のストッパ部3Cを動かすことにより、
支持軸4を支点として該アーム3を回動せしめ、アイド
ルロー26と検知板130円弧部13Cとの間の隙間を
調整する。こめ際、当該隙間はカード2が1枚のときに
は自由な通過を許し、2枚のときには自由な通過を阻止
する程度の間隔に設定する。
Next, screw the clearance adjustment screw 8, and the tips 8AK, l
: By moving the stopper part 3C of the arm 3,
The arm 3 is rotated about the support shaft 4 as a fulcrum to adjust the gap between the idle low 26 and the circular arc portion 13C of the detection plate 130. At the time of closing, the gap is set to such an extent that it allows free passage when there is one card 2, and prevents free passage when there are two cards.

而して、第1図に示す如く、カード送り通路1内にカー
ド2が1枚だけ通過しているときには、該カード2はア
イドルローラ6と検知板13の円弧部13Cとの間を通
過し、カード読取部に向けて送られる。この時、カード
2が通過する際に円弧部13Cに作用する摩擦力は復帰
はね15のばね力より小さいから、検知板13は伺ら回
動することがない。
As shown in FIG. 1, when only one card 2 is passing through the card feeding path 1, the card 2 passes between the idle roller 6 and the arcuate portion 13C of the detection plate 13. , is sent to the card reader. At this time, since the frictional force acting on the arcuate portion 13C when the card 2 passes is smaller than the spring force of the return spring 15, the detection plate 13 does not rotate.

一方、第3図に示す如くカード送り通路1内を2枚のカ
ード2,2が二重送りされてきたとする。
On the other hand, suppose that two cards 2, 2 are fed double through the card feeding path 1 as shown in FIG.

この場合には、2枚のカード2が同時にアイドルローラ
6と検知板130円弧部13Cとの間の隙間に挿入され
ることとなり、該アイドルローラ6と円弧部13Cとの
間の摩擦力が大きくなる。この結果、検知板13は復帰
ばね15のばね力に抗して該検知板13は矢示B方向に
回動し、アイドルローラ6に対して平面部13Dが対面
する状態となり、該アイドルローラ6との間の隙間を拡
大することによって当該2枚のカード2,2の通過を許
す。
In this case, two cards 2 are simultaneously inserted into the gap between the idle roller 6 and the circular arc portion 13C of the detection plate 130, and the frictional force between the idle roller 6 and the circular arc portion 13C is large. Become. As a result, the detection plate 13 rotates in the direction of arrow B against the spring force of the return spring 15, and the flat portion 13D faces the idle roller 6. By enlarging the gap between the two cards 2 and 2, the two cards 2 and 2 are allowed to pass through.

このように、検知板13が回動することによっって、当
然に扇状板部13Bも回動するから、そのセンサ作動部
13Gがセンサ19のU字溝19Bに入り込み、該セン
サ19の発光素子19Cから受光素子190への光を遮
蔽する。これにより、センサ19からは二重送り検出信
号が出力される。
As described above, when the detection plate 13 rotates, the fan-shaped plate portion 13B also rotates, so that the sensor actuating portion 13G enters the U-shaped groove 19B of the sensor 19, causing the sensor 19 to emit light. Light from the element 19C to the light receiving element 190 is blocked. As a result, the sensor 19 outputs a double feed detection signal.

この二重送り検出信号は例えば二重送りされた2枚のカ
ード2をリジェクト用スタ友ツカに排出しまだ必要に応
じて誤動作報知器(図示せず)を作動する。この際、検
知板13の軸心o2は支持軸12の軸心01に対して偏
心しているから、該検知板13の回動をより確実ならし
める。
This double feed detection signal, for example, discharges the two double fed cards 2 to a reject stacker and activates a malfunction alarm (not shown) if necessary. At this time, since the axis o2 of the detection plate 13 is eccentric with respect to the axis 01 of the support shaft 12, the rotation of the detection plate 13 is made more reliable.

さらに、カード通路1内に3枚以上のカード2が送られ
てきたときには、前述の如く検知板13が回動するのに
加え、アーム3が引張ばね9に抗して図中矢示1〕方向
に回動し、アイドルローラ6を持ち上げることにより、
これら多数枚のカード2の通過を許す。
Furthermore, when three or more cards 2 are sent into the card passage 1, in addition to the detection plate 13 rotating as described above, the arm 3 moves in the direction indicated by the arrow 1 in the figure against the tension spring 9. By rotating and lifting the idle roller 6,
These large numbers of cards 2 are allowed to pass through.

このように、本実施例では、二重送りされたカード2,
2によって検知板13が円弧部13Cから平面部13D
に回動し、このときの回動変位をセンサ19によって直
接検出することができるから、円弧部13Cの円弧の大
きさ、検知板13の径等を適切な形状に設定することに
より、祥来技術の如き変位拡大機構を使用しなくても大
きな回動変位を得ることができる。
In this way, in this embodiment, the double-fed card 2,
2, the detection plate 13 moves from the circular arc portion 13C to the flat portion 13D.
The sensor 19 can directly detect the rotational displacement at this time. A large rotational displacement can be obtained without using a displacement amplifying mechanism such as a conventional technique.

次に、第4図は本発明の第2の実施例を示し、前述した
第1の実施例と同一構成要素には同一符号を付すものと
するに、本実施例の特徴は、支持軸12の軸心03に対
し、検知板13の軸心を03として一致させたことにあ
る。
Next, FIG. 4 shows a second embodiment of the present invention, in which the same components as in the first embodiment described above are given the same reference numerals. The reason is that the axis 03 of the detection plate 13 is aligned with the axis 03 of the sensor.

このように構成することによっても、復帰ばね15のば
ね力を適正なばね力に設定することにより、カード2が
二重送りされた場合には第1の実施例と同様に検知板1
3を円弧部13Cから平面部13DK向は回動させ、セ
ンサ19による検出を行なわせることができる。
With this configuration, by setting the spring force of the return spring 15 to an appropriate spring force, when the card 2 is fed twice, the detection plate 1
3 can be rotated from the arcuate portion 13C toward the flat portion 13DK to allow the sensor 19 to perform detection.

なお、前述の各実施例ではセンサ19として発光素子1
9Cと受光業子19Dとからなる光学センサを例に挙げ
述べたが、これに限ることな(、磁気感応素子、リード
スイッチ等を用いた磁気センサ、またはリミットスイッ
チ等を用いた有接点センサ等を使用してもよい。
Note that in each of the above embodiments, the light emitting element 1 is used as the sensor 19.
9C and a light-receiving element 19D as an example, but the present invention is not limited to this (a magnetic sensor using a magnetic sensing element, a reed switch, etc., or a contact sensor using a limit switch, etc.) may be used.

本発明に係るカード・紙類の二重送り検出゛装置は以上
詳述した如くであって、カード・紙類の二重送りを検知
板の回動変位として直接検知することができるから、円
弧部の円弧の大きさ、検知板の径等を任意に設定するこ
とKより、カード・紙類の厚みを大きな回動変位に変換
することができ、検出精度を高め、構成を簡略化するこ
とができる。
The double feeding detection device for cards and paper according to the present invention is as described in detail above, and since double feeding of cards and paper can be directly detected as the rotational displacement of the detection plate, it is possible to By arbitrarily setting the size of the arc of the part, the diameter of the detection plate, etc., the thickness of the card/paper can be converted into a large rotational displacement, improving detection accuracy and simplifying the configuration. I can do it.

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

第1図ないし第3図は本発明に係るカード・紙類の二重
送り検出装置の第1の実施例を示し、第1図はその正面
図、第2図は第1図の■−■矢示方向断面図、第3図は
カード・紙類の二重送り状態を示す第1図と同様の正面
図、第4図は本発明の第2の実施例を示す正面図である
。 1・・・カード送り通路、2・・・カード、3・・・ア
ーム、4・・・アーム支持軸、5・・・アイドルローラ
支持軸、6・・・アイドルローラ、7,11・・・取付
板、8・・・隙間調整ねじ、9・・・引張ばね、12・
・・二重送り検知板支持軸、13・・・二重送り検知板
、13A、13B・・・扇状板部、13C,13E・・
・円弧部、13D・・・平面部、13F・・・ストッパ
部、13G・・・センサ作動部、14・・−回動力調整
部材、15・・・復帰ばね、16・・・固定用ねじ、1
8・−・ストッパビン、19・・・センサ。 第1図 0 第3図 n
1 to 3 show a first embodiment of the card/paper double feed detection device according to the present invention, FIG. 1 is a front view thereof, and FIG. FIG. 3 is a front view similar to FIG. 1 showing a double feeding state of cards and papers, and FIG. 4 is a front view showing a second embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Card feeding path, 2...Card, 3...Arm, 4...Arm support shaft, 5...Idle roller support shaft, 6...Idle roller, 7, 11... Mounting plate, 8... Gap adjustment screw, 9... Tension spring, 12.
...Double feed detection plate support shaft, 13...Double feed detection plate, 13A, 13B...Fan-shaped plate portion, 13C, 13E...
- Arc part, 13D... Plane part, 13F... Stopper part, 13G... Sensor actuating part, 14... - rotational force adjustment member, 15... Return spring, 16... Fixing screw, 1
8...Stopper bin, 19...Sensor. Figure 1 0 Figure 3 n

Claims (1)

【特許請求の範囲】[Claims] カード・紙類の送り通路の途中に回動自在に軸支された
アイドルローラと、該送り通路を挾んで該アイドルロー
ラと対向する位置に回動可能に軸支された二重送り検知
板と、該検知板が回動したことを検出するセンサとを備
え、前記二重送り検知板は前記アイドルローラとの間に
カード・紙類が1枚だけ通過するのを許すように外周が
円弧状となった円弧部と、カード・紙類が複数枚送られ
てきたときには前記アイドルローラとの間の摩擦力によ
り回動し、当該複数枚のカード・紙類の通過を許すよう
に外周が前記円弧部に連続する平面となった平面部と、
前記円弧部から平面部に回動したとき前記センサを作動
せしめるセンサ作動部とから形成してなるカード・紙類
の二重送り検出装置。
An idle roller rotatably supported in the middle of a card/paper feed path, and a double feed detection plate rotatably supported at a position facing the idle roller across the feed path. , a sensor for detecting rotation of the detection plate, and the double feed detection plate has an arcuate outer periphery so as to allow only one card/paper to pass between it and the idle roller. When a plurality of cards/papers are fed, the circular arc portion rotates due to the frictional force between the idle roller, and the outer periphery is rotated to allow the passage of the plurality of cards/papers. A plane part that is a plane continuous to the arc part,
A double feed detection device for cards and papers, comprising a sensor actuating part that actuates the sensor when rotated from the arcuate part to the flat part.
JP4245384A 1984-03-06 1984-03-06 Double feed detector for card, paper, or the like Pending JPS60186982A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4245384A JPS60186982A (en) 1984-03-06 1984-03-06 Double feed detector for card, paper, or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4245384A JPS60186982A (en) 1984-03-06 1984-03-06 Double feed detector for card, paper, or the like

Publications (1)

Publication Number Publication Date
JPS60186982A true JPS60186982A (en) 1985-09-24

Family

ID=12636484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4245384A Pending JPS60186982A (en) 1984-03-06 1984-03-06 Double feed detector for card, paper, or the like

Country Status (1)

Country Link
JP (1) JPS60186982A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6210401B1 (en) 1991-08-02 2001-04-03 Shui T. Lai Method of, and apparatus for, surgery of the cornea

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53131666A (en) * 1977-04-19 1978-11-16 Matsushita Electric Ind Co Ltd Paper feed apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53131666A (en) * 1977-04-19 1978-11-16 Matsushita Electric Ind Co Ltd Paper feed apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6210401B1 (en) 1991-08-02 2001-04-03 Shui T. Lai Method of, and apparatus for, surgery of the cornea

Similar Documents

Publication Publication Date Title
US4121716A (en) Doubles and thickness detector and sorter
US5713678A (en) Low-paper sensing apparatus
US5203555A (en) Adjustable dampening device in an apparatus for detecting double fed sheets
US5754213A (en) Document production apparatus and method having a noncontact sensor for determining media presence and type
US4527793A (en) Monitoring device for monitoring book block formation
KR920009015B1 (en) Sheet thickness detecting device
US4881840A (en) Printer having paper-out and column zero detection mechanism
JPS60186982A (en) Double feed detector for card, paper, or the like
JPH04198802A (en) Device for detecting thickness of sheet paper or the like
JPH04313535A (en) Entrance interrupting device of sheet feeder
KR101164244B1 (en) Media thickness detector
JPH10265092A (en) Paper end detector
JPS6324517Y2 (en)
JPS6382314A (en) Paper thickness detector
JPH05264235A (en) Device for determining degree of wire spacing of coil spring
JPH0632495A (en) Sheet medium thickness detecting device
JPH0616282A (en) Thickness detecting device
JP2003312889A (en) Recording paper carrying device and image forming device
JP2858990B2 (en) Paper sheet retention detector
JPS606053Y2 (en) Remaining yarn sensing device for bobbins transferred in an upright position
JPS61120789A (en) Printer
JP3136873B2 (en) Detection device
JPH06115763A (en) Overlapping conveyed paper detecting device
JPH06183604A (en) Paper stack detector
JPH0618350U (en) Paper feed detector