JP6841448B2 - Paper leaf double feed detection device and double feed detection method - Google Patents
Paper leaf double feed detection device and double feed detection method Download PDFInfo
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Description
本発明は、例えば、複数枚重なった紙葉類から１枚ずつ取り出す際の重送を検知する重送検知装置、および重送検知方法に関する。 The present invention relates to, for example, a double feed detection device for detecting double feed when taking out one sheet at a time from a plurality of stacked paper sheets, and a double feed detection method.
例えば、新聞の折込ちらしを丁合する丁合機は、複数種類の折込ちらしをそれぞれ投入する複数段の給紙トレイを有する。各給紙トレイには、同じ種類の折込ちらしが複数枚重ねた状態で投入される。丁合機は、複数段の給紙トレイからそれぞれ１枚ずつ折込ちらしを取り出して、縦搬送路で重ねながら搬送し、縦搬送路上で待機している折り紙の間に挟み込んで、丁合束として排出する。 For example, a collating machine for collating newspaper leaflets has a plurality of stages of paper feed trays for inputting a plurality of types of leaflets. Multiple sheets of the same type of insert leaflets are loaded into each paper feed tray in a stacked state. The collating machine takes out one leaflet from each of the multi-stage paper feed trays, transports the leaflets while stacking them on the vertical transport path, and sandwiches them between the origami papers waiting on the vertical transport path to form a collating bundle. Discharge.
折込ちらしは、その厚さや材質が種々異なる。また、折込ちらしには、印刷移り防止のための粉が付着していたり、静電気を帯びていたりすることがある。このため、重なった状態の複数枚の折込ちらしから１枚の折込ちらしを分離して取り出す際に、２枚以上の折込ちらしが重なった状態のまま取り出されてしまう“重送”を生じる可能性がある。 Folded leaflets vary in thickness and material. In addition, powder for preventing print transfer may adhere to the fold-out leaflets or may be charged with static electricity. For this reason, when one folding leaflet is separated and taken out from a plurality of folding leaflets in an overlapping state, there is a possibility of causing "double feeding" in which two or more folding leaflets are taken out in an overlapping state. There is.
丁合機は、各給紙トレイに、例えば、超音波式、光学式、または機械式などの重送検知機構を備えている。丁合機は、重送検知機構により折込ちらしの重送を検知すると、重送を生じた折込ちらしを含む丁合束を特定して、重送を生じた給紙トレイとともに作業員に通知する。作業員は、重送した折込ちらしを含む丁合束を抜き取るとともに、重送を生じた給紙トレイにおける折込ちらしの取出しのための機構を調整する。 The collating machine is provided with a double feed detection mechanism such as an ultrasonic type, an optical type, or a mechanical type in each paper feed tray. When the collating machine detects the double feeding of the folding leaflet by the double feeding detection mechanism, it identifies the collating bundle including the folding leaflet that caused the double feeding and notifies the worker together with the paper feed tray that caused the double feeding. .. The worker pulls out the collating bundle including the double-fed folding leaflet, and adjusts the mechanism for taking out the double-feeding leaflet in the paper feed tray in which the double-feeding occurs.
例えば、機械式の重送検知機構は、各給紙トレイに設けたピックアップローラによる折込ちらしの取り出し方向の下流側に配置される。この種の重送検知機構は、例えば、折込ちらしの搬送面に外周面を位置決め配置した基準ローラと、搬送面を間に挟んで基準ローラの外周面に対して離接可能に設けた変位ローラと、変位ローラの基準ローラに対する変位量を測定する変位センサと、を有する。そして、重送検知機構は、基準ローラと変位ローラの間を折込ちらしが通過した際の変位ローラの変位量を変位センサで測定し、測定した変位量から当該折込ちらしの厚みを算出して、折込ちらしの重送の有無を検知する。 For example, the mechanical double feed detection mechanism is arranged on the downstream side in the take-out direction of the folding leaflet by the pickup roller provided in each paper feed tray. This type of double feed detection mechanism includes, for example, a reference roller whose outer peripheral surface is positioned and arranged on the transfer surface of the folding fold, and a displacement roller provided so as to be detachable from the outer peripheral surface of the reference roller with the transfer surface sandwiched between them. And a displacement sensor that measures the amount of displacement of the displacement roller with respect to the reference roller. Then, the double feed detection mechanism measures the displacement amount of the displacement roller when the fold-out roller passes between the reference roller and the displacement roller with the displacement sensor, and calculates the thickness of the fold-in fold-out roller from the measured displacement amount. Detects the presence or absence of double displacement of the insert displacement.
各給紙トレイから折込ちらしを取り出す際、折込ちらしの材質、取り出し速度、各ローラとの間の摩擦、空気抵抗などにより、折込ちらしに不所望な応力が作用する。このため、折込ちらしがあばれて搬送姿勢が乱れ、皺や撓みを生じる場合がある。例えば、比較的薄い折込ちらしを取り出す場合、折込ちらしに皺や撓みを生じると、変位ローラの変位量が皺や撓みの分だけ大きくなり、“重送”を誤検知してしまう可能性がある。 When the folding leaflets are taken out from each paper feed tray, undesired stress acts on the folding leaflets due to the material of the folding leaflets, the taking-out speed, the friction between the rollers and the air resistance, and the like. For this reason, the folding leaflets may be exposed and the transport posture may be disturbed, resulting in wrinkles or bending. For example, when taking out a relatively thin folding leaflet, if wrinkles or bending occur in the folding leaflet, the displacement amount of the displacement roller increases by the amount of the wrinkle or bending, and there is a possibility that "double feeding" is erroneously detected. ..
よって、このような重送の誤検知を抑制することができる重送検知装置の開発が望まれている。 Therefore, it is desired to develop a double feed detection device capable of suppressing such false detection of double feed.
本発明の重送検知装置の一態様は、複数枚重ねた紙葉類の重ね方向端部の紙葉類に取出し手段の外周面を接触させて、当該取出し手段を紙葉類の取出し方向に回転することにより、複数枚重ねた紙葉類から取出し方向に取り出される紙葉類の重送を検知する。この重送検知装置は、取出し手段により取り出された紙葉類の一方の表面に接触する平らな基準面を有する摺接部材と、基準面に接触および離間可能に配置され且つ基準面に向けて付勢された接触子を有し、基準面に接触して接触子との間に送り込まれた紙葉類により基準面から離間する方向に移動された接触子の基準面からの移動量を当該紙葉類の厚み信号として出力する変位センサと、接触子の近傍で基準面と平行で且つ面で接触可能に対向して配置された平らな押圧面を有し、基準面と接触子との間に送り込まれた紙葉類を押圧面により基準面に押し付ける押圧部材と、変位センサの出力に基づいて、押圧部材の押圧面により基準面に押し付けられて基準面と接触子との間に送り込まれた紙葉類の重送の有無を検知する検知手段と、を有する。 One aspect of the double feed detection device of the present invention is to bring the outer peripheral surface of the take-out means into contact with the paper leaves at the end in the stacking direction of a plurality of stacked sheets, and move the take-out means in the take-out direction of the paper leaves. By rotating, the double feeding of the paper sheets taken out in the taking-out direction from the multiple sheets of paper leaves is detected. This double feed detection device is arranged so as to be in contact with and separated from the reference surface and toward the reference surface with a sliding contact member having a flat reference surface that contacts one surface of the paper sheets taken out by the extraction means. The amount of movement of the contactor that has an urged contact and is moved in a direction away from the reference surface by paper sheets that are in contact with the reference surface and sent between the contact and the contact is the amount of movement from the reference surface. It has a displacement sensor that outputs as a thickness signal of paper sheets , and a flat pressing surface that is arranged in the vicinity of the contactor in parallel with the reference surface and facing the reference surface so as to be in contact with each other. The paper sheets sent between them are pressed against the reference surface by the pressing surface, and based on the output of the displacement sensor, they are pressed against the reference surface by the pressing surface of the pressing member and sent between the reference surface and the contactor. It has a detection means for detecting the presence or absence of double feeding of the paper sheets.
本発明の重送検知方法の一態様によると、複数枚重ねた紙葉類の重ね方向端部の紙葉類に取出し手段の外周面を接触させて、当該取出し手段を紙葉類の取出し方向に回転することにより、複数枚重ねた紙葉類から取出し方向に取り出される紙葉類の重送を検知する。このとき、取出し手段により取り出された紙葉類の一方の表面に接触する平らな基準面と平行で且つ面で接触可能に対向した平らな押圧面により、基準面と押圧面との間に送り込まれた紙葉類を基準面に押し付け、押圧面の近傍で基準面に接触および離間可能に配置され且つ基準面に向けて付勢された接触子と基準面との間に送り込まれた紙葉類により基準面から離間する方向に移動された接触子の基準面からの移動量を当該紙葉類の厚み信号として出力し、この厚み信号に基づいて、基準面に接触して接触子との間に送り込まれた紙葉類の重送の有無を検知する。 According to one aspect of the double feed detection method of the present invention, the outer peripheral surface of the take-out means is brought into contact with the paper leaves at the end in the stacking direction of a plurality of stacked sheets, and the take-out means is used in the take-out direction of the paper leaves. By rotating to, the double feeding of the paper sheets taken out in the taking-out direction from the multiple sheets of paper leaves is detected. At this time, the flat pressing surface that faces to be contacted by and the surface parallel to the flat reference surface in contact with one surface of the paper sheet taken out by take-out means, fed between the reference surface and the pressing surface Paper sheets that have been pressed against the reference surface, are arranged so that they can be contacted and separated from the reference surface in the vicinity of the pressing surface, and are fed between the contactor and the reference surface that are urged toward the reference surface. The amount of movement of the contactor moved from the reference plane in the direction away from the reference plane by the type is output as a thickness signal of the paper sheets, and based on this thickness signal, the contactor comes into contact with the reference plane and with the contactor. Detects the presence or absence of double feeding of paper sheets sent in between.
本発明によると、重送の誤検知を抑制することができる。 According to the present invention, erroneous detection of double feeding can be suppressed.
以下、本発明を実施するための形態について図面を参照して説明する。
図１に示すように、丁合機１０は、上下方向に長い略直方体形状の筐体１を有する。筐体１の前面側（図示左側）および背面側（図示右側）には、上下方向に互いに離間して並んだ複数段の給紙トレイ２（給紙部）が設けられている。各給紙トレイ２は、その一部が筐体１の外方へ突出して設けられている。各給紙トレイ２は、筐体１の内側に向けて下方に傾斜して取り付けられている。
Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
As shown in FIG. 1, the collating machine 10 has a substantially rectangular parallelepiped housing 1 that is long in the vertical direction. On the front side (left side in the drawing) and the back side (right side in the drawing) of the housing 1, a plurality of stages of paper feed trays 2 (paper feed units) arranged vertically separated from each other are provided. A part of each paper feed tray 2 is provided so as to project outward from the housing 1. Each paper feed tray 2 is attached so as to be inclined downward toward the inside of the housing 1.
以下の説明では、筐体１を前面側から見て左手から右手に向かう方向をＸ方向とし、手前に向かう方向をＹ方向とし、下から上に向かう方向をＺ方向とする。また、各給紙トレイ２から折込ちらしを取り出す方向をＴ方向とする。Ｘ方向、Ｙ方向、およびＺ方向は、互いに直交する座標軸として、各図において適宜図示する。また、Ｔ方向は、各図において破線矢印で適宜図示する。 In the following description, the direction from the left hand to the right hand when the housing 1 is viewed from the front side is the X direction, the direction toward the front is the Y direction, and the direction from the bottom to the top is the Z direction. Further, the direction in which the insert leaflets are taken out from each paper feed tray 2 is the T direction. The X direction, the Y direction, and the Z direction are appropriately shown in each figure as coordinate axes orthogonal to each other. Further, the T direction is appropriately illustrated by a broken line arrow in each figure.
各給紙トレイ２には、同じ種類の折込ちらし（図示せず）が複数枚重ねて投入される。折込ちらしの重ね方向は、給紙トレイ２の上面と直交する方向（概ね上下方向）である。通常、給紙トレイ２毎に投入される折込ちらしの種類は異なる。複数の給紙トレイ２を介して同じ種類の折込ちらしを投入することもできる。なお、筐体１の前面側の最下段にある給紙トレイ２ａは、図示しない折り紙を投入するための給紙トレイとして割り当てられている。折り紙は、折込ちらしの一種であってもよい。 A plurality of insert leaflets (not shown) of the same type are stacked and loaded into each paper feed tray 2. The stacking direction of the folding leaflets is a direction (generally a vertical direction) orthogonal to the upper surface of the paper feed tray 2. Normally, the type of insert leaflet loaded for each paper feed tray 2 is different. It is also possible to feed the same type of leaflets through a plurality of paper feed trays 2. The paper feed tray 2a at the bottom on the front side of the housing 1 is assigned as a paper feed tray for loading origami paper (not shown). Origami may be a kind of folding leaflet.
筐体１内には、筐体１の略中心を通って上下方向に延びた搬送パス３が設けられている。搬送パス３は、前面側の複数段の給紙トレイ２と背面側の複数段の給紙トレイ２の間に設けられている。搬送パス３は、概ねＸＺ平面と平行に設けられている。そして、各給紙トレイ２から所定のタイミングで取り出された折込ちらしが搬送パス３へ送り込まれて互いに重ねられる。言い換えると、各給紙トレイ２から取り出した折込ちらしが搬送パス３で重なるタイミングで各給紙トレイ２から折込ちらしが取り出される。そして、重なった状態の複数枚の折込ちらしが搬送パス３を介して下方へ搬送される。搬送パス３には、重なった状態の複数枚の折込ちらしを挟持して搬送するための複数組の搬送ローラ対４が設けられている。 A transport path 3 extending in the vertical direction is provided in the housing 1 through substantially the center of the housing 1. The transport path 3 is provided between the multi-stage paper feed tray 2 on the front side and the multi-stage paper feed tray 2 on the back side. The transport path 3 is provided substantially parallel to the XZ plane. Then, the leaflets taken out from each paper feed tray 2 at a predetermined timing are sent to the transport path 3 and overlapped with each other. In other words, the leaflets taken out from each paper feed tray 2 are taken out from each paper feed tray 2 at the timing when the leaflets taken out from each paper feed tray 2 overlap in the transport path 3. Then, a plurality of folded leaflets in an overlapping state are transported downward via the transport path 3. The transport path 3 is provided with a plurality of sets of transport roller pairs 4 for sandwiching and transporting a plurality of folded leaflets in an overlapping state.
各給紙トレイ２の傾斜方向の下端側、すなわち搬送パス３に近い中心寄りの端部には、それぞれ、第１給紙ローラ５および第２給紙ローラ６が設けられている。第１および第２給紙ローラ５、６は、取出し手段として機能する。第１給紙ローラ５は、給紙トレイ２上に重ねて投入された複数枚の折込ちらしの最上端（重ね方向端部）の折込ちらしに外周面を接触せしめて折込ちらしの取出し方向Ｔに回転する。第１給紙ローラ５より折込ちらしの取り出し方向Ｔの下流側に設けた第２給紙ローラ６は、折込ちらしに外周面を接触せしめて折込ちらしの取出し方向に回転する。第２給紙ローラ６は、捌き板７に２枚目以降の折込ちらしの取出し方向の先端を押し付けて２枚取り（すなわち“重送”）を抑制する。 A first paper feed roller 5 and a second paper feed roller 6 are provided at the lower end side of each paper feed tray 2 in the inclined direction, that is, at the end portion near the center near the transport path 3, respectively. The first and second paper feed rollers 5 and 6 function as take-out means. The first paper feed roller 5 brings the outer peripheral surface into contact with the folding leaflets at the uppermost end (end in the stacking direction) of the plurality of folding leaflets that are stacked and loaded on the paper feeding tray 2 so as to take out the folding leaflets T. Rotate. The second paper feed roller 6 provided on the downstream side of the folding leaflet taking-out direction T from the first paper feeding roller 5 makes the outer peripheral surface of the folding leaflet come into contact with the folding leaflet and rotates in the folding leaflet taking-out direction. The second paper feed roller 6 presses the tip of the second and subsequent inserts in the take-out direction against the handling plate 7 to suppress the take-out of two sheets (that is, "double feed").
図２に示すように、折込ちらしの給紙方向Ｔに沿って第２給紙ローラ６の下流側には、所定のタイミングで取出し方向Ｔに回転して、一旦停止させた折込ちらしを搬送パス３へ送り込む送りローラ対８が設けられている。本実施形態では、折込ちらしの取出し方向Ｔと交差する方向（Ｘ方向）に離間した２組の送りローラ対８、８を有する（図６）。各組の送りローラ対８は、折込ちらしの搬送経路を間に挟んでそれぞれの外周面同士を押し付けたニップ８ａ（図２）を有する。 As shown in FIG. 2, on the downstream side of the second paper feed roller 6 along the paper feed direction T of the insert leaflet, the insert leaflet that has been temporarily stopped by rotating in the take-out direction T at a predetermined timing is conveyed to the transport path. A feed roller pair 8 for feeding to 3 is provided. In the present embodiment, there are two sets of feed roller pairs 8 and 8 separated in a direction (X direction) intersecting the take-out direction T of the folding leaflet (FIG. 6). Each set of feed roller pairs 8 has a nip 8a (FIG. 2) in which the outer peripheral surfaces of each set are pressed against each other with a transfer path for folding leaflets in between.
２組の送りローラ対８は、第１および第２給紙ローラ５、６によって給紙トレイ２から取り出された折込ちらしの取出し方向Ｔの先端をニップ８ａに受け入れて所定のタイミングで取出し方向Ｔに回転する。ここで言う所定のタイミングとは、他の給紙トレイ２から取り出された他の折込ちらしと当該給紙トレイ２から取り出した折込ちらしが搬送パス３でちょうど重なるタイミングである。 The two sets of feed roller pairs 8 receive the tip of the folding leaflet taking out direction T taken out from the paper feed tray 2 by the first and second paper feeding rollers 5 and 6 into the nip 8a, and take out the feeding direction T at a predetermined timing. Rotate to. The predetermined timing referred to here is a timing at which the other insert leaflets taken out from the other paper feed tray 2 and the insert leaflets taken out from the paper feed tray 2 just overlap in the transport path 3.
図１に示すように、搬送パス３の下端には、折りローラ対９が配置されている。折りローラ対９は、そのニップが搬送パス３の延長線上に位置する姿勢で設けられている。つまり、搬送パス３を介して下方へ搬送された複数枚の折込ちらしが折りローラ対９のニップへ送り込まれるようになっている。 As shown in FIG. 1, a folding roller pair 9 is arranged at the lower end of the transport path 3. The folding roller pair 9 is provided in a posture in which its nip is located on an extension line of the transport path 3. That is, a plurality of folding leaflets conveyed downward via the conveying path 3 are sent to the nip of the folding roller pair 9.
折り紙を給紙するための給紙トレイ２ａの給紙方向Ｔの下流側（図１で右側）には、給紙トレイ２ａを介して投入された折り紙を折りローラ対９の上方へ送り込むための送りローラ対８が設けられている。折り紙の給紙方向Ｔの先端には、折り紙の給紙方向Ｔの先端を所定位置で停止させる停止部１１が設けられている。停止部１１は、折り紙の給紙方向Ｔの中央位置が折りローラ対９のニップに対向する位置で折り紙を停止させる。折りローラ対９の斜め上方には、折りローラ対９のニップに向けて折り紙の中央部を押し込むための折込ナイフ１２が配置されている。 On the downstream side (right side in FIG. 1) of the paper feed direction T of the paper feed tray 2a for feeding origami, the origami paper loaded via the paper feed tray 2a is fed above the folding roller pair 9. A feed roller pair 8 is provided. At the tip of the origami paper feeding direction T, a stop portion 11 is provided to stop the tip of the origami paper feeding direction T at a predetermined position. The stop portion 11 stops the origami paper at a position where the central position of the origami paper feeding direction T faces the nip of the folding roller vs. 9. A folding knife 12 for pushing the central portion of the origami toward the nip of the folding roller pair 9 is arranged diagonally above the folding roller pair 9.
しかして、各給紙トレイ２を介して投入された折込ちらしが１枚ずつ取り出されて搬送パス３で重ねられて折りローラ対９のニップへ送り込まれる。このとき、予め給紙された折り紙の中央を折込ナイフ１２によって予め折り込んでおく。そして、重なった状態で搬送パス３を介して搬送された複数枚の折込ちらしが折り紙の中央に押し込まれ、折りローラ対９の回転によって折り紙の間に挟み込まれる。折りローラ対９を通過して折り紙が２つ折りにされた折込ちらしの束、すなわち折り紙の間に複数枚の折込ちらしを挟んだ丁合束Ｔ（図示せず）は、搬送ベルト１３へ受け渡されて排出ローラ対１４を介して筐体１の前面側に設けた排出口１５から排出される。 Then, the insert leaflets thrown in through each paper feed tray 2 are taken out one by one, stacked in the transport path 3, and sent to the nip of the folding roller pair 9. At this time, the center of the origami paper that has been fed in advance is folded in advance by the folding knife 12. Then, a plurality of folding leaflets conveyed through the conveying path 3 in an overlapping state are pushed into the center of the origami paper, and are sandwiched between the origami papers by the rotation of the folding roller pair 9. A bundle of folded leaflets in which the origami is folded in half after passing through the folding rollers pair 9, that is, a collating bundle T (not shown) in which a plurality of folded leaflets are sandwiched between the origami papers is delivered to the transport belt 13. It is discharged from the discharge port 15 provided on the front side of the housing 1 via the discharge roller pair 14.
ここで、各給紙トレイ２に設けた給紙機構２０について、主に図２および図３を参照して説明する。図２は、給紙機構２０の要部の構成を示す概略図であり、図３は、給紙機構２０の動作を制御する制御系のブロック図である。図２では、丁合機１０の前面側に配置した給紙機構２０を例示した。 Here, the paper feed mechanism 20 provided in each paper feed tray 2 will be described mainly with reference to FIGS. 2 and 3. FIG. 2 is a schematic view showing the configuration of a main part of the paper feed mechanism 20, and FIG. 3 is a block diagram of a control system that controls the operation of the paper feed mechanism 20. FIG. 2 illustrates a paper feeding mechanism 20 arranged on the front side of the collating machine 10.
図２に示すように、給紙機構２０は、上述した第１給紙ローラ５（図２では図示省略）、第２給紙ローラ６、捌き板７、送りローラ対８の他に、変位センサ２１と押圧プレート３１（押圧部材）を有する。変位センサ２１は、折込ちらしの厚みを検知するためのものである。押圧プレート３１は、折込ちらしの皺や撓みを無くして平らにするためのものである。また、給紙機構２０は、給紙機構２０の動作を制御する制御部３０（検知手段）を有する。なお、変位センサ２１、押圧プレート３１、および制御部３０は、後述する摺接ガイド２３（摺接部材）の上面２３ａ（基準面）とともに、折込ちらしの重送の有無を検知する重送検知装置として機能する。 As shown in FIG. 2, the paper feed mechanism 20 includes a displacement sensor in addition to the above-mentioned first paper feed roller 5 (not shown in FIG. 2), a second paper feed roller 6, a handling plate 7, and a feed roller pair 8. It has 21 and a pressing plate 31 (pressing member). The displacement sensor 21 is for detecting the thickness of the folding leaflet. The pressing plate 31 is for flattening the folding leaflets without wrinkles or bending. Further, the paper feeding mechanism 20 has a control unit 30 (detecting means) for controlling the operation of the paper feeding mechanism 20. The displacement sensor 21, the pressing plate 31, and the control unit 30 are a double feed detection device that detects the presence or absence of double feed of the fold-out leaflet together with the upper surface 23a (reference surface) of the sliding contact guide 23 (sliding contact member) described later. Functions as.
図３に示すように、制御部３０には、変位センサ２１、第１および第２給紙ローラ５、６を回転させるモータ２２、および送りローラ対８を回転させるモータ２４が接続されている。第１および第２給紙ローラ５、６は、同期して回転する。第１および第２給紙ローラ５、６、および送りローラ対８は、図示しないクラッチを介して接続した１つのモータにより駆動してもよい。 As shown in FIG. 3, the control unit 30 is connected to a displacement sensor 21, a motor 22 for rotating the first and second paper feed rollers 5 and 6, and a motor 24 for rotating the feed roller pair 8. The first and second paper feed rollers 5 and 6 rotate in synchronization with each other. The first and second paper feed rollers 5, 6 and the feed roller pair 8 may be driven by one motor connected via a clutch (not shown).
第１および第２給紙ローラ５、６は、給紙トレイ２の上面に積み重ねて投入された複数枚の折込みちらしのうち重ね方向の最上端（重ね方向端部）の折込みちらしに外周面を接触せしめて図示矢印Ｔ方向に回転する。第１および第２給紙ローラ５、６は、給紙トレイ２の最上端の折込ちらしから順に１枚ずつその回転方向Ｔ（図２で右方向）に取り出す。つまり、第１および第２給紙ローラ５、６は、最上端の折込ちらしが取り出された後は、その下の折込ちらしに接触して回転する。 The first and second paper feed rollers 5 and 6 have an outer peripheral surface on the fold leaflet at the uppermost end (end portion in the stacking direction) of the plurality of fold-out leaflets stacked and loaded on the upper surface of the paper feed tray 2. Make contact and rotate in the direction of arrow T in the figure. The first and second paper feed rollers 5 and 6 are taken out one by one in the rotation direction T (right direction in FIG. 2) in order from the folding leaflet at the uppermost end of the paper feed tray 2. That is, the first and second paper feed rollers 5 and 6 rotate in contact with the folding leaflets below the folding leaflets after the uppermost folding leaflets are taken out.
折込ちらしの取出し方向下流側の第２給紙ローラ６の下方には、捌き板７が所定間隔を空けて対向配置されている。捌き板７は、給紙トレイ２から外れた位置に配置されている。捌き板７は、第２給紙ローラ６の外周面に接触して摩擦により取り出される１枚目の折込ちらしの下に重なった２枚目以降の折込ちらしの取出し方向Ｔの先端に接触し、２枚目以降の折込ちらしが１枚目の折込ちらしに連れ出される“重送”を抑制する。 Below the second paper feed roller 6 on the downstream side of the folding leaflet in the taking-out direction, the handling plates 7 are arranged facing each other with a predetermined interval. The handling plate 7 is arranged at a position separated from the paper feed tray 2. The handling plate 7 contacts the outer peripheral surface of the second paper feed roller 6 and comes into contact with the tip of the take-out direction T of the second and subsequent fold-out leaflets that overlap under the first fold-out leaflet that is taken out by friction. Suppresses "double feeding" in which the second and subsequent inserts are taken out to the first insert.
第１および第２給紙ローラ５、６により取り出された１枚目の折込ちらしは、その搬送経路（図２に破線で示す）の下側に配置した摺接ガイド２３（摺接部材）の上面２３ａ（基準面）に摺接しながら矢印Ｔ方向に送られる。摺接ガイド２３の上面２３ａは、略水平な方向に延設された平らな面であり、折込ちらしの下面（一方の表面）に接触して下から支える。そして、当該折込ちらしの取出し方向Ｔの先端が送りローラ対８のニップ８ａへ送り込まれる。 The first fold-out leaflet taken out by the first and second paper feed rollers 5 and 6 is a sliding contact guide 23 (sliding contact member) arranged under the transport path (shown by a broken line in FIG. 2). It is sent in the arrow T direction while sliding in contact with the upper surface 23a (reference surface). The upper surface 23a of the sliding contact guide 23 is a flat surface extending in a substantially horizontal direction, and is in contact with the lower surface (one surface) of the folding leaflet to support it from below. Then, the tip of the folding leaflet in the taking-out direction T is fed to the nip 8a of the feed roller pair 8.
送りローラ対８は、取出し方向Ｔの先端をニップ８ａに受け入れた折込ちらしを搬送パス３に向けて送り出す。送りローラ対８は、第１および第２給紙ローラ５、６によって折込ちらしが送り込まれるときには停止している。送りローラ対８は、折込ちらしの先端がニップ８ａに到達した後、当該折込ちらしの先端をニップ８ａにより挟持拘束した状態で、取出し方向Ｔに回転し始め、折込ちらしを取出し方向Ｔに送り出す。また、このとき、第１および第２給紙ローラ５、６は、送りローラ対８に同期して取出し方向Ｔに回転し、送りローラ対８と協働して折込ちらしを取出し方向Ｔに送る。 The feed roller pair 8 feeds the insert leaflet that receives the tip of the take-out direction T into the nip 8a toward the transport path 3. The feed roller pair 8 is stopped when the insert leaflets are fed by the first and second paper feed rollers 5 and 6. After the tip of the folding leaflet reaches the nip 8a, the feed roller pair 8 starts to rotate in the take-out direction T with the tip of the folding leaflet being pinched and restrained by the nip 8a, and feeds the folding leaflet in the taking-out direction T. At this time, the first and second paper feed rollers 5 and 6 rotate in the take-out direction T in synchronization with the feed roller pair 8 and feed the folded leaflets in the take-out direction T in cooperation with the feed roller pair 8. ..
変位センサ２１は、第２給紙ローラ６と送りローラ対８の間に配置されている。変位センサ２１は、折込ちらしの搬送経路を間に挟んで摺接ガイド２３の上面２３ａに対向して配置されている。変位センサ２１は、摺接ガイド２３の上面２３ａに向けて付勢された接触子２１ａを有する。言い換えると、変位センサ２１は、接触子２１ａの先端を摺接ガイド２３の上面２３ａに押し付けた状態で給紙機構２０の図示しないフレームに固設されている。変位センサ２１は、摺接ガイド２３の上面２３ａに対して接触子２１ａが接触および離間可能な位置に設けられている。 The displacement sensor 21 is arranged between the second paper feed roller 6 and the feed roller pair 8. The displacement sensor 21 is arranged so as to face the upper surface 23a of the sliding contact guide 23 with the transfer path of the folding leaflet sandwiched between them. The displacement sensor 21 has a contactor 21a urged toward the upper surface 23a of the sliding contact guide 23. In other words, the displacement sensor 21 is fixed to a frame (not shown) of the paper feed mechanism 20 in a state where the tip of the contactor 21a is pressed against the upper surface 23a of the sliding contact guide 23. The displacement sensor 21 is provided at a position where the contactor 21a can come into contact with and separate from the upper surface 23a of the sliding contact guide 23.
摺接ガイド２３の上面２３ａと変位センサ２１の接触子２１ａの間に折込ちらしが送り込まれると、変位センサ２１の接触子２１ａが、摺接ガイド２３の上面２３ａに接触して送られる折込ちらしにより上面２３ａから離間する方向に押圧されて移動される。このとき、変位センサ２１の接触子２１ａは、摺接ガイド２３の上面２３ａと接触子２１ａの先端との間を通過する折込ちらしの厚みに応じた距離だけ上面２３ａから離れる。つまり、変位センサ２１は、接触子２１ａの上面２３ａからの移動量を検出し、この移動量を当該折込ちらしの厚みに関する信号として出力する。例えば、変位センサ２１は、接触子２１ａの移動による磁気の変化を電圧で読み取って変位量を検出する。 When the folding leaflet is sent between the upper surface 23a of the sliding contact guide 23 and the contact piece 21a of the displacement sensor 21, the contactor 21a of the displacement sensor 21 comes into contact with the upper surface 23a of the sliding contact guide 23 and is sent by the folding leaflet. It is pushed and moved in a direction away from the upper surface 23a. At this time, the contactor 21a of the displacement sensor 21 is separated from the upper surface 23a by a distance corresponding to the thickness of the folding leaflet passing between the upper surface 23a of the sliding contact guide 23 and the tip of the contactor 21a. That is, the displacement sensor 21 detects the amount of movement of the contactor 21a from the upper surface 23a, and outputs this amount of movement as a signal regarding the thickness of the folding leaflet. For example, the displacement sensor 21 detects the amount of displacement by reading the change in magnetism due to the movement of the contactor 21a with a voltage.
押圧プレート３１は、変位センサ２１の接触子２１ａの近傍で摺接ガイド２３の上面２３ａに対向して配置されている。押圧プレート３１は、摺接ガイド２３の上面２３ａに対向し且つ上面２３ａと略平行に配設された後述する押圧面３２を有する。押圧プレート３１は、押圧面３２を摺接ガイド２３の上面２３ａに向けて付勢し、変位センサ２１の接触子２１ａと上面２３ａとの間を搬送される折込ちらしを上面２３ａに押し付ける。これにより、折込ちらしに皺や撓みが生じていた場合であっても、変位センサ２１による厚み検出位置において、折込ちらしを平らにすることができ、重送の誤検知を抑制することができる。 The pressing plate 31 is arranged in the vicinity of the contactor 21a of the displacement sensor 21 and facing the upper surface 23a of the sliding contact guide 23. The pressing plate 31 has a pressing surface 32, which will be described later, which is arranged so as to face the upper surface 23a of the sliding contact guide 23 and substantially parallel to the upper surface 23a. The pressing plate 31 urges the pressing surface 32 toward the upper surface 23a of the sliding contact guide 23, and presses the folding leaflet carried between the contactor 21a and the upper surface 23a of the displacement sensor 21 against the upper surface 23a. As a result, even when the fold-out leaflet is wrinkled or bent, the fold-out leaflet can be flattened at the thickness detection position by the displacement sensor 21, and erroneous detection of double feeding can be suppressed.
ここで、上述した変位センサ２１と押圧プレート３１の構造およびレイアウトについて、図４乃至図６を参照してより詳細に説明する。図４および図５は、変位センサ２１および押圧プレート３１をブラケット４１に取り付けた組立体４０を示す斜視図である。図４は、組立体４０を折込ちらしの取出し方向Ｔの上流側の斜め左側から見た斜視図であり、図５は、組立体４０を取出し方向Ｔの下流側の斜め下方から見た斜視図である。さらに、図６は、２組の送りローラ対８、８と組立体４０の位置関係を示す平面図である。図６では、説明を分かり易くするため、ブラケット４１の図示を省略してある。 Here, the structure and layout of the displacement sensor 21 and the pressing plate 31 described above will be described in more detail with reference to FIGS. 4 to 6. 4 and 5 are perspective views showing an assembly 40 in which the displacement sensor 21 and the pressing plate 31 are attached to the bracket 41. FIG. 4 is a perspective view of the assembly 40 viewed from the diagonally left side on the upstream side in the take-out direction T of the folding leaflet, and FIG. 5 is a perspective view of the assembly 40 viewed from diagonally below on the downstream side of the take-out direction T. Is. Further, FIG. 6 is a plan view showing the positional relationship between the two sets of feed rollers 8 and 8 and the assembly 40. In FIG. 6, the bracket 41 is not shown for the sake of clarity.
組立体４０のブラケット４１は、１枚の金属板を形状加工して折り曲げた形状を有する。ブラケット４１は、略長方形の支持壁部４２、２つの側壁部４３ａ、４３ｂ、および２つの底壁部４４ａ、４４ｂを一体に有する。２つの側壁部４３ａ、４３ｂは、支持壁部４２の長手方向に沿った２辺に連続して設けられている。２つの側壁部４３ａ、４３ｂは、支持壁部４２の同じ面側に突出して配置され、支持壁部４２と直交する方向に延設されている。２つの側壁部４３ａ、４３ｂは、互いに平行に配置されている。 The bracket 41 of the assembly 40 has a shape obtained by processing and bending one metal plate. The bracket 41 integrally has a substantially rectangular support wall portion 42, two side wall portions 43a and 43b, and two bottom wall portions 44a and 44b. The two side wall portions 43a and 43b are continuously provided on two sides along the longitudinal direction of the support wall portion 42. The two side wall portions 43a and 43b are arranged so as to project on the same surface side of the support wall portion 42, and extend in a direction orthogonal to the support wall portion 42. The two side wall portions 43a and 43b are arranged parallel to each other.
２つの底壁部４４ａ、４４ｂは、支持壁部４２の短手方向に沿った一方の辺に連続して設けられている。２つの底壁部４４ａ、４４ｂは、支持壁部４２の短手方向に互いに離間して設けられている。２つの底壁部４４ａ、４４ｂは、支持壁部４２の側壁部４３ａ、４３ｂと同じ面側に突出して配置され、支持壁部４２と直交する方向に延設されている。２つの底壁部４４ａ、４４ｂは、同じ平面に配置され、側壁部４３ａ、４３ｂと直交する。２つの底壁部４４ａ、４４ｂの間には、変位センサ２１を配置するための切欠き部４５が設けられている。切欠き部４５は、支持壁部４２の下端まで食い込んで延びている。 The two bottom wall portions 44a and 44b are continuously provided on one side of the support wall portion 42 along the lateral direction. The two bottom wall portions 44a and 44b are provided apart from each other in the lateral direction of the support wall portion 42. The two bottom wall portions 44a and 44b are arranged so as to project on the same surface side as the side wall portions 43a and 43b of the support wall portion 42, and extend in a direction orthogonal to the support wall portion 42. The two bottom wall portions 44a and 44b are arranged on the same plane and are orthogonal to the side wall portions 43a and 43b. A notch 45 for arranging the displacement sensor 21 is provided between the two bottom wall portions 44a and 44b. The notch portion 45 bites into and extends to the lower end of the support wall portion 42.
ブラケット４１は、支持壁部４２が折込ちらしの取り出し方向Ｔと直交するＸＺ平面と略平行に配置され、２つの側壁部４３ａ、４３ｂ、および２つの底壁部４４ａ、４４ｂが取り出し方向Ｔに沿って支持壁部４２の下流に配置され、且つ２つの底壁部４４ａ、４４ｂが鉛直方向の下端に配置される姿勢で、給紙機構２０の図示しないフレームに固定される。この姿勢でブラケット４１を固定すると、２つの側壁部４３ａ、４３ｂはＹＺ平面と略平行に配置され、２つの底壁部４４ａ、４４ｂはＸＹ平面と略平行に配置される。 In the bracket 41, the support wall portion 42 is arranged substantially parallel to the XZ plane orthogonal to the take-out direction T of the folding leaflet, and the two side wall portions 43a and 43b and the two bottom wall portions 44a and 44b are along the take-out direction T. The two bottom wall portions 44a and 44b are arranged downstream of the support wall portion 42 and are fixed to a frame (not shown) of the paper feeding mechanism 20 in a posture in which the two bottom wall portions 44a and 44b are arranged at the lower ends in the vertical direction. When the bracket 41 is fixed in this posture, the two side wall portions 43a and 43b are arranged substantially parallel to the YZ plane, and the two bottom wall portions 44a and 44b are arranged substantially parallel to the XY plane.
ブラケット４１の支持壁部４２は、その上端近くに３つの取付孔４２ａを有する。３つの取付孔４２ａは、Ｘ方向に互いに離間して並んで設けられている。支持壁部４２は、これら３つの取付孔４２ａに図示しないネジを挿通して、給紙機構２０の図示しないフレームに締結固定される。ブラケット４１は、組立体４０が、折込ちらしの取出し方向Ｔに沿って２組の送りローラ対８の上流側で、２組の送りローラ対８の間に配置される図６に示す位置に配置されるように位置決めされて固定される。 The support wall portion 42 of the bracket 41 has three mounting holes 42a near the upper end thereof. The three mounting holes 42a are provided side by side so as to be separated from each other in the X direction. The support wall portion 42 is fastened and fixed to a frame (not shown) of the paper feeding mechanism 20 by inserting screws (not shown) into these three mounting holes 42a. The bracket 41 is arranged at a position shown in FIG. 6 in which the assembly 40 is arranged between the two sets of feed rollers vs. 8 on the upstream side of the two sets of feed rollers vs. 8 along the take-out direction T of the folding leaflet. It is positioned and fixed so that it is.
ブラケット４１の２つの底壁部４４ａ、４４ｂには、それぞれ、変位センサ２１を締結固定するためのネジ４６を挿通するための取付孔（図示せず）が設けられている。変位センサ２１は、接触子２１ａの先端が摺接ガイド２３の上面２３ａに押し付けられる位置でブラケット４１に固定される。言い換えると、ブラケット４１は、接触子２１ａの先端が摺接ガイド２３の上面２３ａに押し付けられる位置で給紙機構２０の図示しないフレームに締結固定される。 The two bottom wall portions 44a and 44b of the bracket 41 are each provided with mounting holes (not shown) for inserting screws 46 for fastening and fixing the displacement sensor 21. The displacement sensor 21 is fixed to the bracket 41 at a position where the tip of the contactor 21a is pressed against the upper surface 23a of the sliding contact guide 23. In other words, the bracket 41 is fastened and fixed to a frame (not shown) of the paper feeding mechanism 20 at a position where the tip of the contactor 21a is pressed against the upper surface 23a of the sliding contact guide 23.
変位センサ２１は、接触子２１ａを突没可能に保持した略矩形ブロック状のケース２１ｂを有する。接触子２１ａは、ケース２１ｂの底壁２１ｃに設けた開口部（図示せず）を介して突没可能に設けられている。接触子２１ａは、先端が湾曲した板状片であり、接触する折込ちらしを傷つけないようになっている。接触子２１ａによる折込ちらしに対する押圧力は、摺接ガイド２３の上面２３ａとの間を搬送される折込ちらしにより接触子２１ａをケース２１ｂ内に容易に押し込むことができる程度の値に設定されている。 The displacement sensor 21 has a substantially rectangular block-shaped case 21b that holds the contactor 21a so as to be retractable. The contactor 21a is provided so as to be able to sink through an opening (not shown) provided in the bottom wall 21c of the case 21b. The contactor 21a is a plate-shaped piece having a curved tip so as not to damage the folding leaflets that come into contact with the contactor 21a. The pressing force against the folding leaflet by the contactor 21a is set to a value such that the contacting member 21a can be easily pushed into the case 21b by the folding leaflet conveyed between the sliding contact guide 23 and the upper surface 23a. ..
ケース２１ｂの互いに対向する２つの側壁２１ｄには、ケース２１ｂをブラケット４１に取り付けるための取付片２１ｅが互いに相反する方向に突設されている。取付片２１ｅ、２１ｅは、それぞれ、ケース２１ｂをブラケット４１の切欠き部４５内に配置した状態で、ブラケット４１の底壁部４４ａ、４４ｂの下面に重ねられる。各取付片２１ｅは、それぞれ、底壁部４４ａ、４４ｂに重ねた状態で、底壁部４４ａ、４４ｂの図示しない取付孔と同軸に配置される取付孔（図示せず）を有する。つまり、同軸に重ねたブラケット４１の取付孔と変位センサ２１の取付孔にネジ４６を挿通して、変位センサ２１をブラケット４１に締結固定する。変位センサ２１のブラケット４１に対する固定構造は、ここで説明した構造に限定されるものではなく、任意に変更可能である。 On the two side walls 21d of the case 21b facing each other, mounting pieces 21e for mounting the case 21b to the bracket 41 are projected in opposite directions. The mounting pieces 21e and 21e are stacked on the lower surfaces of the bottom wall portions 44a and 44b of the bracket 41 with the case 21b arranged in the notch 45 of the bracket 41, respectively. Each mounting piece 21e has a mounting hole (not shown) arranged coaxially with a mounting hole (not shown) of the bottom wall portions 44a and 44b in a state of being overlapped with the bottom wall portions 44a and 44b, respectively. That is, the screw 46 is inserted into the mounting hole of the bracket 41 and the mounting hole of the displacement sensor 21 which are coaxially overlapped, and the displacement sensor 21 is fastened and fixed to the bracket 41. The fixed structure of the displacement sensor 21 with respect to the bracket 41 is not limited to the structure described here, and can be arbitrarily changed.
ブラケット４１の２つの側壁部４３ａ、４３ｂの下端近くには、押圧プレート３１を上下動可能に取り付けるための２本のネジ４７ａ、４７ｂがそれぞれ取り付けられている。各ネジ４７ａ、４７ｂは、それぞれ、対応する側壁部４３ａ、４３ｂから外方へ突設されている。詳細には、一方の側壁部４３ａの一方（図示上方）のネジ４７ａが他方の側壁部４３ｂの一方（図示上方）のネジ４７ａと同軸に配置され、一方の側壁部４３ａの他方（図示下方）のネジ４７ｂが他方の側壁部４３ｂの他方（図示下方）のネジ４７ｂと同軸に配置されている。そして、同軸に配置された２本のネジ４７ａ、４７ａ（或いはネジ４７ｂ、４７ｂ）が押圧プレート３１の支持軸として機能する。この場合、もう１組のネジ４７ｂ、４７ｂ（或いはネジ４７ａ、４７ａ）は、押圧プレート３１を鉛直方向にガイドするガイド軸として機能する。 Two screws 47a and 47b for mounting the pressing plate 31 so as to be vertically movable are attached near the lower ends of the two side wall portions 43a and 43b of the bracket 41, respectively. The screws 47a and 47b are projected outward from the corresponding side wall portions 43a and 43b, respectively. Specifically, one (upper) screw 47a of one side wall 43a is coaxially arranged with one (upper) screw 47a of the other 43b, and the other (lower) of one side wall 43a. Screw 47b is arranged coaxially with the screw 47b on the other side (lower side of the drawing) of the other side wall portion 43b. Then, two screws 47a, 47a (or screws 47b, 47b) arranged coaxially function as a support shaft of the pressing plate 31. In this case, another set of screws 47b, 47b (or screws 47a, 47a) functions as a guide shaft for guiding the pressing plate 31 in the vertical direction.
押圧プレート３１は、摺接ガイド２３の上面２３ａに対向する押圧面３２を有する押圧板部３３、上流側傾斜板部３４、下流側傾斜板部３５、および２つの支持板部３６ａ、３６ｂを一体に有する。押圧プレート３１は、例えば、１枚の金属板を形状加工して折り曲げることにより形成される。押圧プレート３１は、給紙機構２０の固定系に配置したブラケット４１や変位センサ２１に対し、鉛直方向の上下に移動可能に設けられている。 The pressing plate 31 integrates a pressing plate portion 33 having a pressing surface 32 facing the upper surface 23a of the sliding contact guide 23, an upstream inclined plate portion 34, a downstream inclined plate portion 35, and two support plate portions 36a and 36b. Have in. The pressing plate 31 is formed, for example, by processing a single metal plate into a shape and bending it. The pressing plate 31 is provided so as to be movable up and down in the vertical direction with respect to the bracket 41 and the displacement sensor 21 arranged in the fixed system of the paper feeding mechanism 20.
押圧プレート３１の押圧板部３３は、その１面（図示下面）に押圧面３２を有し、略矩形板状に形成されている。押圧板部３３は、ブラケット４１に固定した変位センサ２１の接触子２１ａを非接触状態で挿通して介在させるスリット３７（開口）を有する。本実施形態では、スリット３７は、折込ちらしの取出し方向Ｔに沿って延設されている。接触子２１ａを摺接ガイド２３の上面２３ａに向けて突出させるための開口はスリット３７に限らず任意の形状とすることができる。押圧プレート３１は、変位センサ２１のケース２１ｂに対しても非接触状態で設けられている。 The pressing plate portion 33 of the pressing plate 31 has a pressing surface 32 on one surface (lower surface in the drawing), and is formed in a substantially rectangular plate shape. The pressing plate portion 33 has a slit 37 (opening) through which the contactor 21a of the displacement sensor 21 fixed to the bracket 41 is inserted and interposed in a non-contact state. In the present embodiment, the slit 37 extends along the take-out direction T of the folding leaflet. The opening for projecting the contactor 21a toward the upper surface 23a of the sliding contact guide 23 is not limited to the slit 37 and may have any shape. The pressing plate 31 is also provided in a non-contact state with respect to the case 21b of the displacement sensor 21.
押圧プレート３１の上流側傾斜板部３４は、折込ちらしの取出し方向Ｔに沿って押圧板部３３の上流側に連続して設けられている。上流側傾斜板部３４は、取出し方向Ｔの上流側に向けて摺接ガイド２３の上面２３ａから離れる方向に傾斜している。 The upstream side inclined plate portion 34 of the pressing plate 31 is continuously provided on the upstream side of the pressing plate portion 33 along the taking-out direction T of the folding leaflet. The upstream-side inclined plate portion 34 is inclined in a direction away from the upper surface 23a of the sliding contact guide 23 toward the upstream side in the taking-out direction T.
押圧プレート３１の下流側傾斜板部３５は、折込ちらしの取出し方向Ｔに沿って押圧板部３３の下流側に連続して設けられている。下流側傾斜板部３５は、取出し方向Ｔの下流側に向けて摺接ガイド２３の上面２３ａから離れる方向に傾斜している。下流側傾斜板部３５は、押圧板部３３に設けたスリット３７の一部を含む。つまり、下流側傾斜板部３５は、スリット３７により２つの部分３５ａ、３５ｂに分断されている。 The downstream side inclined plate portion 35 of the pressing plate 31 is continuously provided on the downstream side of the pressing plate portion 33 along the taking-out direction T of the folding leaflet. The downstream side inclined plate portion 35 is inclined toward the downstream side in the take-out direction T in a direction away from the upper surface 23a of the sliding contact guide 23. The downstream side inclined plate portion 35 includes a part of the slit 37 provided in the pressing plate portion 33. That is, the downstream inclined plate portion 35 is divided into two portions 35a and 35b by the slit 37.
押圧プレート３１の２つの支持板部３６ａ、３６ｂは、折込ちらしの取出し方向Ｔに沿った押圧板部３３の両端辺に連続して設けられている。２つの支持板部３６ａ、３６ｂは、それぞれ、押圧板部３３の対応する端辺から図示上方、すなわち摺接ガイド２３の上面２３ａから離れる方向に延設されている。押圧板部３３の押圧面３２を摺接ガイド２３の上面２３ａに接触させた状態において、２つの支持板部３６ａ、３６ｂはＹＺ平面と略平行に配置される。押圧プレート３１の２つの支持板部３６ａ、３６ｂは、それぞれ、ブラケット４１の２つの側壁部４３ａ、４３ｂの外面に重ねて配置される。 The two support plate portions 36a and 36b of the pressing plate 31 are continuously provided on both ends of the pressing plate portion 33 along the take-out direction T of the folding leaflet. Each of the two support plate portions 36a and 36b extends upward in the drawing from the corresponding end side of the pressing plate portion 33, that is, in a direction away from the upper surface 23a of the sliding contact guide 23. The two support plate portions 36a and 36b are arranged substantially parallel to the YZ plane in a state where the pressing surface 32 of the pressing plate portion 33 is in contact with the upper surface 23a of the sliding contact guide 23. The two support plate portions 36a and 36b of the pressing plate 31 are arranged so as to overlap the outer surfaces of the two side wall portions 43a and 43b of the bracket 41, respectively.
２つの支持板部３６ａ、３６ｂは、それぞれ、ブラケット４１の側壁部４３ａ、４３ｂに固設したネジ４７ａ、４７ｂをスライド可能に受け入れるカム孔３８（一方のみ図示）を有する。各カム孔３８は、押圧面３２と直交するＺ方向に延びた長孔である。押圧プレート３１は、２つの支持板部３６ａ、３６ｂにそれぞれ設けたカム孔３８にネジ４７ａ、４７ｂを挿通してブラケット４１の側壁部４３ａ、４３ｂに螺合することにより、ブラケット４１に取り付けられる。 The two support plate portions 36a and 36b each have a cam hole 38 (only one of which is shown) that slidably receives the screws 47a and 47b fixed to the side wall portions 43a and 43b of the bracket 41. Each cam hole 38 is an elongated hole extending in the Z direction orthogonal to the pressing surface 32. The pressing plate 31 is attached to the bracket 41 by inserting screws 47a and 47b into the cam holes 38 provided in the two support plate portions 36a and 36b, respectively, and screwing them into the side wall portions 43a and 43b of the bracket 41.
ブラケット４１の２つの側壁部４３ａ、４３ｂにそれぞれ固設したネジ４７ａ、４７ａは、押圧プレート３１の重心を通って押圧面３２と直交する架空の線上の重心と異なる点で交差する支持軸として機能する。このような支持軸を介して押圧プレート３１を上下に移動可能に支持することにより、押圧面３２を水平に保ち易くなり、摺接ガイド２３の上面２３ａに対する押圧面３２の平行度を高めることができ、上面２３ａに沿って搬送される折込ちらしを押圧面３２によって均一に押圧することができる。 The screws 47a and 47a fixed to the two side wall portions 43a and 43b of the bracket 41 function as support shafts that pass through the center of gravity of the pressing plate 31 and intersect with the center of gravity on an imaginary line orthogonal to the pressing surface 32. To do. By supporting the pressing plate 31 so as to be movable up and down via such a support shaft, it becomes easy to keep the pressing surface 32 horizontal, and the parallelism of the pressing surface 32 with respect to the upper surface 23a of the sliding contact guide 23 can be increased. The folding leaflet conveyed along the upper surface 23a can be uniformly pressed by the pressing surface 32.
以下、図７のタイミングチャートおよび図８のフローチャートを参照して、各給紙トレイ２に設けた給紙機構２０の制御部３０による動作の一例について説明する。
制御部３０は、まず初めに、給紙トレイ２に複数枚の折込ちらしを集積した状態で、モータ２２を付勢して第１および第２給紙ローラ５、６を回転させる。これにより、第１および第２給紙ローラ５、６の外周面に接触した集積方向の最上端の折込ちらしが送りローラ対８のニップ８ａに向けて取り出される。このとき、捌き板７により、最上端の折込ちらしの下に重なった他の折込ちらしが停止され、最上端の折込ちらしと分離されて重送が防止される。
Hereinafter, an example of operation by the control unit 30 of the paper feed mechanism 20 provided in each paper feed tray 2 will be described with reference to the timing chart of FIG. 7 and the flowchart of FIG.
First, the control unit 30 urges the motor 22 to rotate the first and second paper feed rollers 5 and 6 in a state where a plurality of inserts are integrated in the paper feed tray 2. As a result, the leaflets at the uppermost end in the stacking direction in contact with the outer peripheral surfaces of the first and second paper feed rollers 5 and 6 are taken out toward the nip 8a of the feed roller pair 8. At this time, the handling plate 7 stops the other folding leaflets that overlap under the folding leaflets at the uppermost end, and separates them from the folding leaflets at the uppermost end to prevent double feeding.
第１および第２給紙ローラ５、６は、最上端の折込ちらしの先端が送りローラ対８のニップ８ａに達するまで回転されて停止される。このとき、送りローラ対８は回転していない。モータ２２がパルスモータである場合、給紙トレイ２から取り出した折込ちらしの先端がニップ８ａに達するパルス数だけモータ２２が回転されて停止される。折込ちらしの先端をニップ８ａに確実に送り込むため、先端がニップ８ａに達するパルス数よりわずかに送り量を多くする。ここまでの動作を「１次給紙」と称する（図８、ＳＴ１）。 The first and second paper feed rollers 5 and 6 are rotated and stopped until the tip of the folding leaflet at the uppermost end reaches the nip 8a of the feed roller pair 8. At this time, the feed roller pair 8 is not rotating. When the motor 22 is a pulse motor, the motor 22 is rotated and stopped by the number of pulses at which the tip of the insert leaflet taken out from the paper feed tray 2 reaches the nip 8a. In order to reliably feed the tip of the folding leaflet into the nip 8a, the feed amount is slightly larger than the number of pulses at which the tip reaches the nip 8a. The operation up to this point is referred to as "primary paper feeding" (FIG. 8, ST1).
上記のように第１および第２給紙ローラ５、６による折込ちらしの送り量を少し多目に設定すると、折込ちらしの材質、厚み、送り速度などによっては、第２給紙ローラ６と送りローラ対８の間で折込ちらしに皺や撓みを生じる場合がある。このように、折込ちらしに皺や撓みを生じると、この皺や撓みの部分が摺接ガイド２３の上面２３ａから離れて、変位センサ２１の接触子２１ａが折込ちらしの皺や撓み部分によって押圧されて、当該折込ちらしの厚みを正確に検出することができなくなる。 If the feed amount of the folding leaflets by the first and second paper feed rollers 5 and 6 is set a little larger as described above, the feed will be fed with the second paper feed rollers 6 depending on the material, thickness, feed speed, etc. of the folding leaflets. Wrinkles and bending may occur in the folds between the rollers to 8. When wrinkles or bending occur in the folding leaflet in this way, the wrinkling or bending portion is separated from the upper surface 23a of the sliding contact guide 23, and the contactor 21a of the displacement sensor 21 is pressed by the wrinkling or bending portion of the folding leaflet. Therefore, it becomes impossible to accurately detect the thickness of the folded leaflet.
このため、本実施形態では、第２給紙ローラ６と送りローラ対８の間で変位センサ２１の接触子２１ａの近傍に押圧プレート３１を配置して、この領域を介して摺接ガイド２３の上面２３ａとの間を通る折込ちらしの皺や撓みを無くすようにした。この場合、押圧プレート３１は、自重により押圧面３２を折込ちらしに押し付けて、折込ちらしを摺接ガイド２３の上面２３ａとの間で押圧する。これにより、折込ちらしの皺や撓みが押えられ、折込ちらしの厚みが正常な厚みに修正され、重送の誤検知を防止することができる。 Therefore, in the present embodiment, the pressing plate 31 is arranged between the second paper feed roller 6 and the feed roller pair 8 in the vicinity of the contactor 21a of the displacement sensor 21, and the sliding contact guide 23 passes through this region. The wrinkles and bending of the folding leaflets passing between the upper surface 23a and the upper surface 23a are eliminated. In this case, the pressing plate 31 presses the pressing surface 32 against the folding leaflet by its own weight, and presses the folding leaflet with the upper surface 23a of the sliding contact guide 23. As a result, wrinkles and bending of the folded leaflets are suppressed, the thickness of the folded leaflets is corrected to a normal thickness, and erroneous detection of double feeding can be prevented.
また、本実施形態では、上述した「１次給紙」の後、第２給紙ローラ６を停止させた状態で、制御部３０が、モータ２４をわずかな時間（数ｍｓｅｃ）だけ回転させて送りローラ対８を少しだけ回転させ、第２給紙ローラ６と送りローラ対８との間で折込ちらしを引き延ばしてこの部分の皺や撓みを無くすようにした。このような皺や撓みを無くす動作（送りローラ対８のわずかな回転）を「１．５給紙」と称する（ＳＴ２）。「１．５給紙」は、給紙トレイ２から取り出す全ての折込ちらしに対して実施する。 Further, in the present embodiment, after the above-mentioned "primary paper feeding", the control unit 30 rotates the motor 24 for a short time (several msec) with the second paper feeding roller 6 stopped. The feed roller pair 8 was rotated slightly, and the folding leaflet was extended between the second paper feed roller 6 and the feed roller pair 8 to eliminate wrinkles and bending in this portion. The operation of eliminating such wrinkles and bending (slight rotation of the feed roller pair 8) is referred to as "1.5 paper feeding" (ST2). "1.5 Paper feed" is performed for all insert leaflets taken out from the paper feed tray 2.
「１．５給紙」の後、制御部３０は、第２給紙ローラ６と送りローラ対８との間で変位センサ２１を介して折込ちらしの厚みを検出する。厚み検出は、送りローラ対８を停止させた状態で実施してもよく、送りローラ対８を回転させた状態で実施してもよい。そして、制御部３０は、この検出結果に基づいて、当該折込ちらしが１枚であるのか複数枚重なったものであるのかを判断し、重送の有無を検知する（ＳＴ３）。このように、折込ちらしの皺や撓みを無くした状態で折込ちらしの厚みを検出することで、皺や撓みによる重送の誤検知を略無くすことができ、重送の誤検知による装置の停止回数を減らすことができる。 After "1.5 paper feeding", the control unit 30 detects the thickness of the insert leaflet between the second paper feeding roller 6 and the feed roller pair 8 via the displacement sensor 21. The thickness detection may be performed with the feed roller pair 8 stopped, or may be performed with the feed roller pair 8 rotated. Then, based on this detection result, the control unit 30 determines whether the insert leaflets are one or a plurality of overlapping sheets, and detects the presence or absence of double feeding (ST3). In this way, by detecting the thickness of the folded leaflet with the wrinkles and bending of the folded leaflet eliminated, it is possible to almost eliminate the false detection of double feeding due to wrinkles and bending, and the device is stopped due to the false detection of double feeding. The number of times can be reduced.
なお、ステップ（ＳＴ）３の重送検知の後、制御部３０は、所定のタイミングでモータ２２、２４を付勢して、送りローラ対８を回転させるとともに第１および第２給紙ローラ５、６を回転させ、折込ちらしを搬送パス３に向けて送り出す（ＳＴ４）。この動作を「２次給紙」と称する。「２次給紙」で当該折込ちらしを送り出すタイミングは、他の給紙トレイ２から取り出した他の折込ちらしと当該折込ちらしが搬送パス３でちょうど重なるタイミングであり、上述した「１．５給紙」によって折込ちらしをわずかに送った際のモータ２４のパルス数を考慮したタイミングである。つまり、「１．５給紙」のときの折込ちらしの送り量の分だけタイミングを遅らせて「２次給紙」を開始する。 After the double feed detection in step (ST) 3, the control unit 30 urges the motors 22 and 24 at predetermined timings to rotate the feed roller pair 8 and the first and second paper feed rollers 5. , 6 are rotated to send the insert leaflet toward the transport path 3 (ST4). This operation is referred to as "secondary paper feeding". The timing of sending out the insert leaflet in the "secondary paper feed" is the timing at which the other insert leaflet taken out from the other paper feed tray 2 and the insert leaflet just overlap in the transport path 3, and the above-mentioned "1.5 feed" This is the timing considering the number of pulses of the motor 24 when the leaflets are slightly sent by "paper". That is, the timing is delayed by the amount of the feed amount of the insert leaflet at the time of "1.5 paper feed", and the "secondary paper feed" is started.
以上のように、本実施形態によると、各給紙トレイ２に設置した給紙機構２０において、変位センサ２１による厚み検知領域を通過する折込ちらしを押圧プレート３１の押圧面３２で押さえるようにしたため、重送の誤検知を無くすことができ、誤検知による装置の稼働率の低下を抑制することができる。また、本実施形態では、「１次給紙」と「２次給紙」の間で「１．５給紙」を実施し、折込ちらしの撓みを無くしてから重送検知するようにした。このため、簡単な装置構成により、重送の誤検知をより少なくすることができる。 As described above, according to the present embodiment, in the paper feed mechanism 20 installed in each paper feed tray 2, the folding leaflet passing through the thickness detection region by the displacement sensor 21 is pressed by the pressing surface 32 of the pressing plate 31. , It is possible to eliminate the false detection of double feeding, and it is possible to suppress the decrease in the operating rate of the device due to the false detection. Further, in the present embodiment, "1.5 paper feed" is performed between the "primary paper feed" and the "secondary paper feed" to eliminate the bending of the folding leaflet before detecting the double feed. Therefore, it is possible to reduce the false detection of double feeding by a simple device configuration.
なお、本発明は、上記実施形態に限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で種々に変形することが可能である。また、上記実施形態には種々の発明が含まれており、開示される複数の構成要件から選択された組み合わせにより種々の発明が抽出され得る。例えば、実施形態に示される全構成要件からいくつかの構成要件が削除されても、課題が解決でき、効果が得られる場合には、この構成要件が削除された構成が発明として抽出され得る。 The present invention is not limited to the above embodiment, and can be variously modified at the implementation stage without departing from the gist thereof. In addition, various inventions are included in the above-described embodiment, and various inventions can be extracted by a combination selected from a plurality of disclosed constituent requirements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, if the problem can be solved and the effect is obtained, the configuration in which the constituent requirements are deleted can be extracted as an invention.
例えば、上述した実施形態では、押圧プレート３１をブラケット４１に対して上下に移動可能に取り付けて、その自重により押圧面３２を折込ちらしに押し付けるようにしたが、これに限らず、押圧プレート３１を図示しないバネなどの付勢手段を用いて摺接ガイド２３の上面２３ａに押し付けるようにしてもよい。この場合、折込ちらしの搬送を妨げることのない押圧力で押圧面３２を押し付ける必要があり、押圧プレート３１の付勢手段による押圧力を適切な値に調整する必要がある。 For example, in the above-described embodiment, the pressing plate 31 is attached to the bracket 41 so as to be movable up and down, and the pressing surface 32 is pressed against the folding leaflet by its own weight. An urging means such as a spring (not shown) may be used to press the sliding contact guide 23 against the upper surface 23a. In this case, it is necessary to press the pressing surface 32 with a pressing force that does not hinder the transport of the folding leaflets, and it is necessary to adjust the pressing force by the urging means of the pressing plate 31 to an appropriate value.
また、上述した実施形態では、押圧プレート３１を送りローラ対８の上流側に１つだけ配置した場合について説明したが、これに限らず、複数の押圧プレート３１を送りローラ対８の上流側に設けてもよい。この場合も、複数の押圧プレート３１による押圧力が折込ちらしの搬送を妨げることのない押圧力になるように、各押圧プレート３１の材質を軽くしたり、各押圧プレート３１のサイズを小さくしたりする工夫が必要である。 Further, in the above-described embodiment, the case where only one pressing plate 31 is arranged on the upstream side of the feed roller pair 8 has been described, but the present invention is not limited to this, and a plurality of pressing plates 31 are placed on the upstream side of the feed roller pair 8. It may be provided. In this case as well, the material of each pressing plate 31 may be lightened or the size of each pressing plate 31 may be reduced so that the pressing force of the plurality of pressing plates 31 does not interfere with the transfer of the folding leaflets. It is necessary to devise a way to do it.
また、上述した実施形態では、給紙トレイ２から取り出す全ての折込ちらしに対して「１．５給紙」を実施するようにしたが、これに限らず、「１次給紙」と「２次給紙」の間で折込ちらしの皺や撓みの有無を検出して、皺や撓みが生じている場合にだけ「１．５給紙」を実施するようにしてもよい。言い換えると、この「１．５給紙」は本発明に必須の制御ではなく、必ずしも「１．５給紙」を実施する必要はない。 Further, in the above-described embodiment, "1.5 paper feed" is performed for all the inserts taken out from the paper feed tray 2, but the present invention is not limited to this, and "primary paper feed" and "2" are not limited to this. The presence or absence of wrinkles or bending of the fold-in leaflet may be detected during the "next paper feeding", and "1.5 paper feeding" may be performed only when the wrinkles or bending occur. In other words, this "1.5 paper feed" is not essential control in the present invention, and it is not always necessary to carry out "1.5 paper feed".
また、上述した実施形態では、接触子２１ａを有する変位センサ２１によって折込ちらしの厚みを検知するようにしたが、これに限らず、例えば、超音波式や光学式などの他の厚み検知手段を用いてもよい。
以下、本願の出願当初の特許請求の範囲に記載された発明を付記する。
［１］
複数枚重ねた紙葉類の重ね方向端部の紙葉類に取出し手段の外周面を接触させて、当該取出し手段を紙葉類の取出し方向に回転することにより、前記複数枚重ねた紙葉類から前記取出し方向に取り出される紙葉類の重送を検知する重送検知装置であって、
前記取出し手段により取り出された紙葉類の一方の表面に接触する基準面を有する摺接部材と、
前記基準面に接触および離間可能に配置され且つ前記基準面に向けて付勢された接触子を有し、前記基準面に接触して前記接触子との間に送り込まれた紙葉類により前記基準面から離間する方向に移動された前記接触子の前記基準面からの移動量を当該紙葉類の厚み信号として出力する変位センサと、
前記接触子の近傍で前記基準面に対向して配置された押圧面を有し、前記基準面に接触して前記接触子との間に送り込まれた紙葉類を前記押圧面により前記基準面に押し付ける押圧部材と、
前記変位センサの出力に基づいて、前記基準面に接触して前記接触子との間に送り込まれた紙葉類の重送の有無を検知する検知手段と、
を有する重送検知装置。
［２］
前記押圧部材は、自重により前記押圧面を前記基準面に向けて付勢する、
［１］の重送検知装置。
［３］
前記押圧部材は、前記接触子を非接触状態で前記押圧面を介して前記基準面に向けて突出させる開口を有する、
［１］または［２］の重送検知装置。
［４］
前記押圧部材は、その重心を通って前記押圧面と直交する架空の線上の前記重心と異なる点で交差する支持軸を有し、この支持軸を介して上下動可能に支持されている、
［２］の重送検知装置。
［５］
複数枚重ねた紙葉類の重ね方向端部の紙葉類に取出し手段の外周面を接触させて、当該取出し手段を紙葉類の取出し方向に回転することにより、前記複数枚重ねた紙葉類から前記取出し方向に取り出される紙葉類の重送を検知する重送検知方法であって、
前記取出し手段により取り出された紙葉類の一方の表面に接触する基準面に対向した押圧面により前記基準面との間に送り込まれた紙葉類を前記基準面に押し付け、
前記押圧面の近傍で前記基準面に接触および離間可能に配置され且つ前記基準面に向けて付勢された接触子と前記基準面との間に送り込まれた紙葉類により前記基準面から離間する方向に移動された前記接触子の前記基準面からの移動量を当該紙葉類の厚み信号として出力し、
前記厚み信号に基づいて、前記基準面に接触して前記接触子との間に送り込まれた紙葉類の重送の有無を検知する、
重送検知方法。
Further, in the above-described embodiment, the displacement sensor 21 having the contactor 21a detects the thickness of the folded leaflet, but the present invention is not limited to this, and for example, other thickness detecting means such as an ultrasonic type or an optical type may be used. You may use it.
Hereinafter, the inventions described in the claims at the time of filing the application of the present application will be added.
[1]
Stacking direction of a plurality of stacked paper sheets The outer peripheral surface of the taking-out means is brought into contact with the paper leaves at the end, and the taking-out means is rotated in the taking-out direction of the paper leaves. It is a double feed detection device that detects double feed of paper sheets taken out from the class in the removal direction.
A sliding contact member having a reference surface that comes into contact with one surface of the paper sheets taken out by the taking-out means, and
The paper sheets having a contact that is arranged so as to be in contact with and separated from the reference surface and urged toward the reference surface, and is fed between the contact and the contact in contact with the reference surface. A displacement sensor that outputs the amount of movement of the contactor moved away from the reference plane from the reference plane as a thickness signal of the paper sheets.
It has a pressing surface that is arranged in the vicinity of the contact and faces the reference surface, and the paper sheets that come into contact with the reference surface and are fed between the contact and the reference surface are pressed by the pressing surface to the reference surface. And the pressing member that presses against
Based on the output of the displacement sensor, a detection means for detecting the presence or absence of double feeding of paper sheets that have come into contact with the reference surface and have been fed between the contact and the contact sensor.
Double feed detection device with.
[2]
The pressing member urges the pressing surface toward the reference surface by its own weight.
[1] Double feed detection device.
[3]
The pressing member has an opening that allows the contactor to project toward the reference surface through the pressing surface in a non-contact state.
The double feed detection device of [1] or [2].
[4]
The pressing member has a support shaft that passes through the center of gravity and intersects at a point different from the center of gravity on an imaginary line orthogonal to the pressing surface, and is supported so as to be vertically movable via the support shaft.
[2] Double feed detection device.
[5]
Stacking direction of a plurality of stacked paper sheets The outer peripheral surface of the taking-out means is brought into contact with the paper leaves at the end, and the taking-out means is rotated in the taking-out direction of the paper leaves. It is a double feed detection method for detecting double feed of paper sheets taken out from the class in the removal direction.
The paper sheets fed between the reference surface and the reference surface are pressed against the reference surface by the pressing surface facing the reference surface in contact with one surface of the paper sheets taken out by the extraction means.
Separated from the reference surface by paper sheets that are arranged so as to be able to contact and separate from the reference surface in the vicinity of the pressing surface and are fed between the contactor urged toward the reference surface and the reference surface. The amount of movement of the contactor moved in the direction from the reference plane is output as a thickness signal of the paper sheets.
Based on the thickness signal, the presence or absence of double feeding of paper sheets that come into contact with the reference surface and are fed between the contact and the contact is detected.
Double feed detection method.
２…給紙トレイ、３…搬送パス、５…第１給紙ローラ、６…第２給紙ローラ、７…捌き板、８…送りローラ対、８ａ…ニップ、２０…給紙機構、２１…変位センサ、２１ａ…接触子、２２、２４…モータ、２３…摺接ガイド、２３ａ…上面、３０…制御部、３１…押圧プレート、３２…押圧面、３８…カム孔、４０…組立体、４１…ブラケット、４７ａ、４７ｂ…ネジ。 2 ... Paper tray, 3 ... Transport path, 5 ... First paper feed roller, 6 ... Second paper feed roller, 7 ... Sorting plate, 8 ... Feed roller pair, 8a ... Nip, 20 ... Paper feed mechanism, 21 ... Displacement sensor, 21a ... contactor, 22, 24 ... motor, 23 ... sliding contact guide, 23a ... top surface, 30 ... control unit, 31 ... pressing plate, 32 ... pressing surface, 38 ... cam hole, 40 ... assembly, 41 ... brackets, 47a, 47b ... screws.
Claims (5)
前記取出し手段により取り出された紙葉類の一方の表面に接触する平らな基準面を有する摺接部材と、
前記基準面に接触および離間可能に配置され且つ前記基準面に向けて付勢された接触子を有し、前記基準面に接触して前記接触子との間に送り込まれた紙葉類により前記基準面から離間する方向に移動された前記接触子の前記基準面からの移動量を当該紙葉類の厚み信号として出力する変位センサと、
前記接触子の近傍で前記基準面と平行で且つ面で接触可能に対向して配置された平らな押圧面を有し、前記基準面と前記接触子との間に送り込まれた紙葉類を前記押圧面により前記基準面に押し付ける押圧部材と、
前記変位センサの出力に基づいて、前記押圧部材の前記押圧面により前記基準面に押し付けられて前記基準面と前記接触子との間に送り込まれた紙葉類の重送の有無を検知する検知手段と、
を有する重送検知装置。 Stacking direction of a plurality of stacked paper sheets The outer peripheral surface of the taking-out means is brought into contact with the paper leaves at the end, and the taking-out means is rotated in the taking-out direction of the paper leaves. It is a double feed detection device that detects double feed of paper sheets taken out from the class in the removal direction.
A sliding contact member having a flat reference surface in contact with one surface of the paper sheets taken out by the taking-out means, and a sliding contact member.
The paper sheets having a contact that is arranged so as to be in contact with and separated from the reference surface and urged toward the reference surface, and is fed between the contact and the contact in contact with the reference surface. A displacement sensor that outputs the amount of movement of the contactor moved away from the reference plane from the reference plane as a thickness signal of the paper sheets.
Paper sheets that have a flat pressing surface arranged in the vicinity of the contactor in parallel with the reference surface and facing the reference surface so as to be in contact with each other, and are fed between the reference surface and the contactor. A pressing member that is pressed against the reference surface by the pressing surface, and
Based on the output of the displacement sensor, detection for detecting the presence or absence of double feeding of paper sheets pressed against the reference surface by the pressing surface of the pressing member and fed between the reference surface and the contactor. Means and
Double feed detection device with.
請求項１の重送検知装置。 The pressing member urges the pressing surface toward the reference surface by its own weight.
The double feed detection device according to claim 1.
請求項１または請求項２の重送検知装置。 The pressing member has an opening that allows the contactor to project toward the reference surface through the pressing surface in a non-contact state.
The double feed detection device according to claim 1 or 2.
請求項２の重送検知装置。 The pressing member has a support shaft that passes through the center of gravity and intersects at a point different from the center of gravity on an imaginary line orthogonal to the pressing surface, and is supported so as to be vertically movable via the support shaft.
The double feed detection device according to claim 2.
前記取出し手段により取り出された紙葉類の一方の表面に接触する平らな基準面と平行で且つ面で接触可能に対向した平らな押圧面により、前記基準面と前記押圧面との間に送り込まれた紙葉類を前記基準面に押し付け、
前記押圧面の近傍で前記基準面に接触および離間可能に配置され且つ前記基準面に向けて付勢された接触子と前記基準面との間に送り込まれた紙葉類により前記基準面から離間する方向に移動された前記接触子の前記基準面からの移動量を当該紙葉類の厚み信号として出力し、
前記厚み信号に基づいて、前記基準面に接触して前記接触子との間に送り込まれた紙葉類の重送の有無を検知する、
重送検知方法。 Stacking direction of a plurality of stacked paper sheets The outer peripheral surface of the taking-out means is brought into contact with the paper leaves at the end, and the taking-out means is rotated in the taking-out direction of the paper leaves. It is a double feed detection method for detecting double feed of paper sheets taken out from the class in the removal direction.
The flat pressing surface that faces to be contacted by and the surface parallel to the flat reference surface in contact with one surface of the paper sheet taken out by the take-out means, fed between the reference surface and the pressing surface Press the scraped paper leaves against the reference surface,
Separated from the reference surface by paper sheets that are arranged so as to be able to contact and separate from the reference surface in the vicinity of the pressing surface and are fed between the contactor urged toward the reference surface and the reference surface. The amount of movement of the contactor moved in the direction from the reference plane is output as a thickness signal of the paper sheets.
Based on the thickness signal, the presence or absence of double feeding of paper sheets that come into contact with the reference surface and are fed between the contact and the contact is detected.
Double feed detection method.
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