JP5206449B2 - Thickness detection device for paper-like medium - Google Patents

Thickness detection device for paper-like medium Download PDF

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JP5206449B2
JP5206449B2 JP2009019719A JP2009019719A JP5206449B2 JP 5206449 B2 JP5206449 B2 JP 5206449B2 JP 2009019719 A JP2009019719 A JP 2009019719A JP 2009019719 A JP2009019719 A JP 2009019719A JP 5206449 B2 JP5206449 B2 JP 5206449B2
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roller
thickness detection
scraper
reference roller
thickness
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JP2010176491A (en
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弘明 樋口
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Oki Electric Industry Co Ltd
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Description

本発明は、現金処理装置等に用いられる紙葉状媒体である紙幣の厚みを検知する厚み検知装置に関するもので、特に厚み検知用のローラ表面に付着した異物を除去するためのスクレーパを備えた厚み検知装置に関するものである。   The present invention relates to a thickness detection device that detects the thickness of a bill, which is a paper-like medium used in a cash processing device, etc., and in particular, a thickness provided with a scraper for removing foreign matter adhering to the roller surface for thickness detection. The present invention relates to a detection device.

金融機関で使用される現金処理装置には、紙幣鑑別部等において紙葉状媒体である紙幣の厚みを検知する厚み検知装置が備えられている。
この紙葉状媒体の厚み検知装置は、モータを駆動原として回転する基準ローラと、この基準ローラに対して接触、離間可能に配置されていて基準ローラと共に回転する厚み検知ローラを備え、紙幣を両ローラで挟持することで厚み検知ローラが基準ローラから離間したときの変位に基づいて紙幣の厚みをセンサで検知するように構成されており、そして厚み検知の際に厚み検知ローラに紙粉等の異物が付着するとことによる誤検知を防止するため、厚み検知ローラにスクレーパの先端を接触させ、このスクレーパによりローラ表面に付着した紙粉等の異物を掻き落として除去するものとなっている（例えば、特許文献１参照）。 2. Description of the Related Art A cash processing apparatus used in a financial institution is provided with a thickness detection device that detects the thickness of a banknote, which is a paper sheet medium, in a banknote discrimination unit or the like.
The thickness detection device for a sheet-like medium includes a reference roller that rotates using a motor as a driving source, and a thickness detection roller that is arranged to be able to contact and separate from the reference roller and rotates together with the reference roller. It is configured so that the thickness of the banknote is detected by the sensor based on the displacement when the thickness detection roller is separated from the reference roller by being sandwiched by the roller. In order to prevent erroneous detection due to foreign matter adhering, the tip of the scraper is brought into contact with the thickness detection roller, and the scraper scrapes off and removes foreign matter such as paper dust attached to the roller surface (for example, , See Patent Document 1).

特開平１０−２８３５２０号公報Japanese Patent Laid-Open No. 10-283520

しかしながら、上述した従来の技術において、ローラ表面に付着した紙粉等の異物を確実に掻き落とすには、バネ等を用いてスクレーパを厚み検知ローラへ強く押し付ける必要があり、そうした場合スクレーパの摩耗が増加して寿命が低下したり、厚み検知ローラの回転が阻害されて紙葉状媒体である紙幣の搬送障害等を引き起こすという問題がある。
本発明は、このような問題を解決することを課題とする。 However, in the above-described conventional technology, in order to reliably scrape off foreign matters such as paper dust attached to the roller surface, it is necessary to strongly press the scraper against the thickness detection roller using a spring or the like. There is a problem that the service life is increased and the life is shortened, or the rotation of the thickness detection roller is hindered to cause troubles such as the conveyance of a bill which is a paper sheet medium.
An object of the present invention is to solve such a problem.

そのため、本発明は、駆動原により回転する基準ローラと、この基準ローラに対して接触、離間可能に配置されていて基準ローラと共に回転する厚み検知ローラを備え、紙葉状媒体を前記基準ローラと厚み検知ローラで挟持することで厚み検知ローラが基準ローラから離間したときの変位をセンサで検知し、かつ前記基準ローラと厚み検知ローラの外周面にそれぞれスクレーパを接触させてローラ表面の異物を除去する紙葉状媒体の厚み検知装置において、潤滑剤を含んだ樹脂材料により形成された潤滑剤供給部材を前記基準ローラと厚み検知ローラの外周面にそれぞれ接触させたことを特徴とする。 Therefore, the present invention includes a reference roller rotating by a driving source, contact with the reference roller, comprising a thickness detection roller which rotates together with the reference roller is separably arranged, and the reference roller with the paper-like medium The sensor detects the displacement when the thickness detection roller is separated from the reference roller by pinching it with the thickness detection roller, and removes foreign matter on the roller surface by bringing the scraper into contact with the outer peripheral surface of the reference roller and the thickness detection roller. In the paper sheet medium thickness detecting apparatus, a lubricant supply member formed of a resin material containing a lubricant is brought into contact with the outer peripheral surfaces of the reference roller and the thickness detecting roller.

このようにした本発明は、基準ローラと厚み検知ローラが回転時に両ローラ表面に潤滑剤供給部材から潤滑剤が供給されるようにしているため、基準ローラと厚み検知ローラの表面に付着した異物を除去するために両ローラの表面に接触させているスクレーパの摩耗を低減させることができという効果が得られる。
また、潤滑剤供給部材から供給される潤滑剤により基準ローラと厚み検知ローラの表面に皮膜が形成されることで基準ローラと厚み検知ローラの表面から異物を容易に掻き落すことができ、そのため両ローラに対するスクレーパの先端の接触圧を大きくする必要がなく、これにより厚み検知ローラの回転が阻害されて紙葉状媒体の搬送障害等を引き起こす等のこともなくすことができるという効果も得られる。 In the present invention as described above, since the lubricant is supplied from the lubricant supply member to the surfaces of both the rollers when the reference roller and the thickness detection roller are rotated, the foreign matter adhered to the surfaces of the reference roller and the thickness detection roller. Therefore, it is possible to reduce the wear of the scraper that is in contact with the surfaces of the two rollers.
In addition, since a film is formed on the surfaces of the reference roller and the thickness detection roller by the lubricant supplied from the lubricant supply member, foreign matter can be easily scraped off from the surfaces of the reference roller and the thickness detection roller. There is no need to increase the contact pressure at the tip of the scraper with respect to the roller, thereby preventing the rotation of the thickness detection roller from being obstructed and causing troubles such as conveyance of the sheet-like medium.

第１の実施例を示す概略側面図Schematic side view showing the first embodiment 第２の実施例を示す概略側面図Schematic side view showing the second embodiment 第３の実施例を示す要部側面図Side view of main part showing third embodiment 第４の実施例を示す要部側面図Side view of main parts showing a fourth embodiment

以下、図面を参照して本発明による紙葉状媒体の厚み検知装置の実施例を説明する。   DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a sheet-like medium thickness detection apparatus according to the present invention will be described below with reference to the drawings.

図１は第１の実施例を示す概略側面図である。
図において１は基準ローラ、２はこの基準ローラ１と対をなす厚み検知ローラである。
基準ローラ１は図示しないフレームに回転自在に支持されていて、図示しないモータ（駆動原）からの駆動力により回転するものとなっており、また厚み検知ローラ２は支点３を中心に回動するブラケット４に回転可能に支持されていて、基準ローラ１に対して接触、離間可能に配置されている。 FIG. 1 is a schematic side view showing a first embodiment.
In the figure, reference numeral 1 is a reference roller, and 2 is a thickness detection roller which is paired with the reference roller 1.
The reference roller 1 is rotatably supported by a frame (not shown) and is rotated by a driving force from a motor (drive source) (not shown), and the thickness detection roller 2 rotates about a fulcrum 3. The bracket 4 is rotatably supported and is disposed so as to be able to contact and separate from the reference roller 1.

５は厚み検知ローラ２が所定の圧力で基準ローラ１に接触するようにブラケット４を介して厚み検知ローラ２を押圧（付勢）する押圧スプリング、６は紙葉状媒体である紙幣７の厚みを検知する厚み検知センサである。
８と９は紙幣７をガイドする一対のガイド板であり、ガイド板８は基準ローラ１側に設けられ、ガイド板９は厚み検知ローラ２側に配置されている。 Reference numeral 5 denotes a pressure spring that presses (biases) the thickness detection roller 2 via the bracket 4 so that the thickness detection roller 2 contacts the reference roller 1 with a predetermined pressure, and 6 denotes the thickness of the banknote 7 that is a sheet-like medium. It is a thickness detection sensor to detect.
Reference numerals 8 and 9 are a pair of guide plates for guiding the banknote 7. The guide plate 8 is provided on the reference roller 1 side, and the guide plate 9 is disposed on the thickness detection roller 2 side.

１０と１１はスクレーパ、１２と１３は潤滑剤供給部材で、スクレーパ１０と１１は耐摩耗性が高くかつ摺動性（摩擦係数の低い性質）を有する樹脂材料で形成され、潤滑剤供給部材１２と１３はＰＴＦＥ等の潤滑剤を含んだ樹脂材料により形成されていて、スクレーパ１０と１１は板バネ１４と１５の先端にそれぞれ支持され、また潤滑剤供給部材１２と１３は板バネ１６と１７の先端にそれぞれ支持されている。   10 and 11 are scrapers, 12 and 13 are lubricant supply members, and the scrapers 10 and 11 are formed of a resin material having high wear resistance and slidability (properties of low friction coefficient). And 13 are made of a resin material containing a lubricant such as PTFE, the scrapers 10 and 11 are supported at the tips of the leaf springs 14 and 15, respectively, and the lubricant supply members 12 and 13 are leaf springs 16 and 17 respectively. Each is supported at the tip.

そしてスクレーパ１０と潤滑剤供給部材１２はそれぞれの先端が基準ローラ１の軸方向全長に亘って外周面に板バネ１４と１６のバネ力（付勢力）により所定の押圧力で接触するようにハの字形に配置され、またスクレーパ１１と潤滑剤供給部材１３はそれぞれの先端が厚み検知ローラ２の軸方向全長に亘って外周面に板バネ１５と１７のバネ力（付勢力）により所定の押圧力で接触するように逆ハの字形に配置されている。   Then, the scraper 10 and the lubricant supply member 12 have their front ends in contact with the outer peripheral surface over the entire length in the axial direction of the reference roller 1 with a predetermined pressing force by the spring force (biasing force) of the leaf springs 14 and 16. Further, the scraper 11 and the lubricant supply member 13 have predetermined tips pressed by the spring force (biasing force) of the leaf springs 15 and 17 on the outer circumferential surface of the thickness detection roller 2 in the axial direction. It is arranged in a reverse C shape so as to contact with pressure.

板バネ１４と１６は各々の基部が装置内に設けられている取付け板１８に固定され、板バネ１５と１７は各々の基部がブラケット４に固定されている。
上述した構成の作用について説明する。
尚、以下に説明する各部の動作は、図示しない記憶部に格納されたプログラム（ソフトウェア）に基づいて図示しない制御部により制御されるものとする。 Each of the leaf springs 14 and 16 is fixed to a mounting plate 18 provided in the apparatus, and each of the leaf springs 15 and 17 is fixed to the bracket 4.
The operation of the above configuration will be described.
Note that the operation of each unit described below is controlled by a control unit (not shown) based on a program (software) stored in a storage unit (not shown).

まず、基準ローラ１が図示しないモータからの駆動力により矢印Ａで示したように反時計方向に回転すると、この基準ローラ１に圧接している厚み検知ローラ２が従動的に矢印Ｂで示したように時計方向に回転する。
この状態で、搬送方向上流側の図示しない搬送ローラ等により紙幣７が矢印Ｃ方向から搬送されてくると、その紙幣７は基準ローラ１と厚み検知ローラ２により挟持され、その際紙幣７の厚み分だけ厚み検知ローラ２が基準ローラ１から離間して変位するため、その変位量が厚み検知センサ６により検知され、そして検知された変位量から紙幣７の厚さが図示しない制御部により検出（算出）される。 First, when the reference roller 1 is rotated counterclockwise as indicated by an arrow A by a driving force from a motor (not shown), the thickness detection roller 2 pressed against the reference roller 1 is passively indicated by an arrow B. Rotate clockwise.
In this state, when the banknote 7 is transported from the direction of arrow C by a transport roller (not shown) on the upstream side in the transport direction, the banknote 7 is sandwiched between the reference roller 1 and the thickness detection roller 2. Since the thickness detection roller 2 is displaced away from the reference roller 1 by the amount, the displacement amount is detected by the thickness detection sensor 6, and the thickness of the banknote 7 is detected by the control unit (not shown) from the detected displacement amount ( Calculated).

基準ローラ１と厚み検知ローラ２により挟持された紙幣７は基準ローラ１の回転により更に矢印Ｃ方向へ搬送され、搬送方向下流側の図示しない搬送ローラ等に送られるが、基準ローラ１と厚み検知ローラ２間を通過するまで紙幣７の厚み検知は続けられ、これにより紙幣７の搬送方向全長に亘って厚みが検出される。
このように紙幣７の厚み検知が行われるが、その際の紙幣７の紙粉や、紙幣７の破れた個所等を補修した接着テープの破片、あるいはその接着テープの接着剤、装置内で紙幣７に付着して搬送されてくる粘着性のある潤滑油のカスやゴム片等の異物が基準ローラ１や厚み検知ローラ２に付着すると、これらの異物は基準ローラ１と厚み検知ローラ２の回転により、基準ローラ１の表面に接触させたスクレーパ１０の先端、及び厚み検知ローラ２の表面に接触させたスクレーパ１１の先端の位置に搬送され、スクレーパ１０、１１の先端によりそれぞれ掻き落とされて除去される。 The banknote 7 sandwiched between the reference roller 1 and the thickness detection roller 2 is further conveyed in the direction of arrow C by the rotation of the reference roller 1 and is sent to a conveyance roller (not shown) on the downstream side in the conveyance direction. The thickness detection of the banknote 7 is continued until it passes between the rollers 2, whereby the thickness is detected over the entire length of the banknote 7 in the conveyance direction.
In this way, the thickness of the banknote 7 is detected, but the paper dust of the banknote 7 at that time, the broken piece of the adhesive tape that repairs the broken portion of the banknote 7, or the adhesive tape adhesive, the banknote in the apparatus When foreign matter such as sticky lubricating oil residue or rubber pieces adhered to the roller 7 adheres to the reference roller 1 or the thickness detection roller 2, these foreign matters rotate the reference roller 1 and the thickness detection roller 2. Is transported to the position of the tip of the scraper 10 brought into contact with the surface of the reference roller 1 and the tip of the scraper 11 brought into contact with the surface of the thickness detection roller 2, and scraped off by the tips of the scrapers 10 and 11, respectively. Is done.

本実施例では、基準ローラ１の表面には、スクレーパ１０の他に潤滑剤供給部材１２の先端を接触させ、また厚み検知ローラ２の表面には、スクレーパ１１の他に潤滑剤供給部材１３の先端を接触させているので、両ローラ１、２の回転時に、基準ローラ１の表面には潤滑剤供給部材１２によりＰＴＦＥ等の潤滑剤が供給（塗布）され、厚み検知ローラ２の表面には潤滑剤供給部材１３によりＰＴＦＥ等の潤滑剤が供給（塗布）されることになり、この潤滑剤で皮膜されたローラ表面にスクレーパ１０，１１の先端が接触して前記の異物を書き落とすので、スクレーパ１０，１１の摩耗を低減させることが可能になる。   In this embodiment, the tip of the lubricant supply member 12 is brought into contact with the surface of the reference roller 1 in addition to the scraper 10, and the lubricant supply member 13 in addition to the scraper 11 is attached to the surface of the thickness detection roller 2. Since the tips are in contact, when the rollers 1 and 2 are rotated, a lubricant such as PTFE is supplied (applied) to the surface of the reference roller 1 by the lubricant supply member 12, and the surface of the thickness detection roller 2 is Since lubricant such as PTFE is supplied (applied) by the lubricant supply member 13, the tips of the scrapers 10 and 11 come into contact with the surface of the roller coated with this lubricant, and the foreign matter is written down. It becomes possible to reduce wear of the scrapers 10 and 11.

以上説明したように、第１の実施例では、基準ローラ１と、この基準ローラ１に対して接触、離間可能に配置された厚み検知ローラ２のそれぞれの表面に潤滑剤供給部材１２、１３を接触させて、基準ローラ１と厚み検知ローラ２が回転時に両ローラ表面に潤滑剤供給部材１２、１３から潤滑剤が供給されるようにしているため、基準ローラ１と厚み検知ローラ２の表面に付着した異物を除去するために、両ローラ１，２の表面に接触させているスクレーパ１０、１１の摩耗を低減させることができという効果が得られる。   As described above, in the first embodiment, the lubricant supply members 12 and 13 are provided on the surfaces of the reference roller 1 and the thickness detection roller 2 that can be brought into contact with and separated from the reference roller 1. Since the lubricant is supplied from the lubricant supply members 12 and 13 to the surfaces of both rollers when the reference roller 1 and the thickness detection roller 2 are rotated, the surfaces of the reference roller 1 and the thickness detection roller 2 are brought into contact with each other. In order to remove the adhered foreign matter, it is possible to reduce the wear of the scrapers 10 and 11 that are in contact with the surfaces of the rollers 1 and 2.

また、両ローラ１，２の表面に潤滑剤の皮膜が形成されるので、接着剤や粘着性のある異物が両ローラ１，２の表面に強固に付着することがなくなり、両ローラ１，２の表面に対するスクレーパ１０，１１の先端の接触圧を大きくしなくとも接着剤や粘着性のある異物を両ローラ１，２の表面から容易に掻き落すことができるという効果も得られる。
また、このように異物を基準ローラ１と厚み検知ローラ２の表面から容易に掻き落すことができることから、両ローラ１，２に対するスクレーパ１０，１１の先端の接触圧を大きくする必要がなく、これにより基準ローラ１を小さなトルクのモータで回転させることができると共に、厚み検知ローラ２の回転が阻害されて紙幣７の搬送障害等を引き起こすなどのこともなすことができるという効果も得られる。 In addition, since a lubricant film is formed on the surfaces of both rollers 1 and 2, adhesive or sticky foreign matter does not adhere firmly to the surfaces of both rollers 1 and 2. Even if the contact pressure of the tips of the scrapers 10 and 11 with respect to the surface of the roller is not increased, an adhesive or sticky foreign matter can be easily scraped off from the surfaces of the rollers 1 and 2.
Further, since the foreign matter can be easily scraped off from the surfaces of the reference roller 1 and the thickness detecting roller 2 in this way, it is not necessary to increase the contact pressure at the tips of the scrapers 10 and 11 with respect to both rollers 1 and 2. As a result, the reference roller 1 can be rotated by a motor with a small torque, and the rotation of the thickness detection roller 2 can be inhibited to cause troubles such as conveyance failure of the banknote 7.

更に、基準ローラ１と厚み検知ローラ２のそれぞれの表面に潤滑剤供給部材１２、１３から潤滑剤が繰り返して供給されるため、基準ローラ１と厚み検知ローラ２のそれぞれの表面に潤滑剤をコーティングする場合に比べて性能を長期に亘って維持できるという効果も得られる。つまり、基準ローラ１と厚み検知ローラ２のそれぞれの表面に潤滑剤をコーティングした場合、長時間の使用によりコーティング面が剥離するが、本実施例では基準ローラ１と厚み検知ローラ２のそれぞれの表面に潤滑剤供給部材１２、１３から潤滑剤が繰り返して供給されるため、潤滑剤の皮膜が形成され続けることになり、性能を長期に亘って維持できるという効果も得られる。   Further, since the lubricant is repeatedly supplied from the lubricant supply members 12 and 13 to the surfaces of the reference roller 1 and the thickness detection roller 2, the lubricant is coated on the surfaces of the reference roller 1 and the thickness detection roller 2, respectively. Compared with the case where it does, the effect that performance can be maintained over a long term is also acquired. That is, when the lubricant is coated on the surfaces of the reference roller 1 and the thickness detection roller 2, the coating surfaces are peeled off after a long period of use. In this embodiment, the surfaces of the reference roller 1 and the thickness detection roller 2 are separated. Further, since the lubricant is repeatedly supplied from the lubricant supply members 12 and 13, the lubricant film is continuously formed, and the effect that the performance can be maintained for a long time is also obtained.

図２は本発明の第２の実施例を示す概略側面図である。
この第２の実施例は、板バネ１４により支持されたスクレーパ１０と板バネ１６により支持された潤滑剤供給部材１２をそれぞれの先端が基準ローラ１の軸方向全長に亘って外周面に板バネ１４と１６のバネ力（付勢力）により所定の押圧力で接触するように逆ハの字形に配置し、また板バネ１５により支持されたスクレーパ１１と板バネ１７により支持された潤滑剤供給部材１３はそれぞれの先端が厚み検知ローラ２の軸方向全長に亘って外周面に板バネ１５と１７のバネ力（付勢力）により所定の押圧力で接触するようにハの字形に配置すると共に、板バネ１４と１６の各々の基部をガイド板８に固定し、板バネ１５と１７は各々の基部をガイド板９に固定したものとなっている。 FIG. 2 is a schematic side view showing a second embodiment of the present invention.
In the second embodiment, the scraper 10 supported by the plate spring 14 and the lubricant supply member 12 supported by the plate spring 16 are arranged on the outer peripheral surface of the reference roller 1 with the tips thereof extending over the entire length in the axial direction. Lubricant supply member which is arranged in a reverse C shape so as to come into contact with a predetermined pressing force by the spring force (biasing force) of 14 and 16, and is supported by a scraper 11 supported by a leaf spring 15 and a leaf spring 17. 13 is arranged in a square shape so that each tip contacts the outer peripheral surface over the entire length in the axial direction of the thickness detection roller 2 with a predetermined pressing force by the spring force (biasing force) of the leaf springs 15 and 17. Each base of the leaf springs 14 and 16 is fixed to the guide plate 8, and each of the leaf springs 15 and 17 is fixed to the guide plate 9.

この他の構成は、上述した第１の実施例と同様であるので、同一の符号を付してその説明を省略する。
このような構成による第２の実施例においても、第１の実施例と同様に紙幣７の厚み検知、基準ローラ１と厚み検知ローラ２の表面に付着した異物の除去、潤滑剤の供給を行うことができ、第１の実施例と同様の効果が得られるが、板バネ１４と１６の各々の基部をガイド板８に固定するので、第１の実施例における取付け板１８を省略することができ、その分コストダウンが可能になる。 Since other configurations are the same as those of the first embodiment described above, the same reference numerals are given and the description thereof is omitted.
Also in the second embodiment having such a configuration, as in the first embodiment, the thickness of the banknote 7 is detected, the foreign matter adhering to the surfaces of the reference roller 1 and the thickness detection roller 2 is removed, and the lubricant is supplied. The same effect as that of the first embodiment can be obtained, but the base portions of the leaf springs 14 and 16 are fixed to the guide plate 8, so that the mounting plate 18 in the first embodiment can be omitted. It is possible to reduce the cost accordingly.

図３は本発明の第３の実施例を示す要部側面図である。
前記第１の実施例及び第２の実施例では、スクレーパ１０，１１の先端や潤滑剤供給部材１２、１３の先端を基準ローラ１と厚み検知ローラ２の軸方向全長に亘って密着させることが重要である。
しかしながら、樹脂部品における平面度は０．０５ｍｍ程度が限界であるため、スクレーパ１０，１１の先端や潤滑剤供給部材１２、１３の先端を基準ローラ１と厚み検知ローラ２の軸方向全長に亘って充分に密着させられないことがある。 FIG. 3 is a side view of an essential part showing a third embodiment of the present invention.
In the first embodiment and the second embodiment, the tips of the scrapers 10 and 11 and the tips of the lubricant supply members 12 and 13 are brought into close contact with each other over the entire axial length of the reference roller 1 and the thickness detection roller 2. is important.
However, since the flatness of resin parts is limited to about 0.05 mm, the tips of the scrapers 10 and 11 and the tips of the lubricant supply members 12 and 13 extend over the entire axial length of the reference roller 1 and the thickness detection roller 2. It may not be able to adhere sufficiently.

特に、スクレーパ１０，１１と潤滑剤供給部材１２、１３スクレーパの両方の先端がローラ表面に密着していない領域があると、基準ローラ１や厚み検知ローラ２に付着した異物が除去されず、異物の厚みにより正確な紙幣７の厚み検知が行えなくなるリスクが大きくなる。
そこで、この第３の実施例では、基準ローラ１側のスクレーパ１０及び潤滑剤供給部材１２の先端にそれぞれ削れ代（調整部）１９、２０を設けて、この削れ代１９、２０を基準ローラ１の軸方向全長に亘って外周面に接触させたものとしている。 In particular, if there is a region where the tips of both the scrapers 10 and 11 and the lubricant supply members 12 and 13 are not in close contact with the roller surface, the foreign matter adhering to the reference roller 1 and the thickness detection roller 2 is not removed. This increases the risk that the thickness of the banknote 7 cannot be detected accurately.
Therefore, in the third embodiment, scraping margins (adjusting portions) 19 and 20 are provided at the tips of the scraper 10 and the lubricant supply member 12 on the reference roller 1 side, respectively. The outer peripheral surface is brought into contact with the entire length in the axial direction.

ここで削れ代１９はスクレーパ１０と同一材料で形成され、削れ代２０は潤滑剤供給部材１２と同一材料で形成されている。
また、削れ代１９と２０の形状及び寸法は、装置の出荷テスト程度の駆動時間で基準ローラ１や厚み検知ローラ２を回転させたときの初期摩耗により殆ど削られてしまう程度のものを選択する。 Here, the machining allowance 19 is made of the same material as the scraper 10, and the machining allowance 20 is made of the same material as the lubricant supply member 12.
Further, the shape and size of the shaving allowances 19 and 20 are selected so as to be almost scraped by the initial wear when the reference roller 1 and the thickness detection roller 2 are rotated in the driving time of the apparatus shipping test. .

尚、図３では図示していないが、厚み検知ローラ２側のスクレーパ１１及び潤滑剤供給部材１３の先端にもそれぞれ削れ代１９、２０と同様の削れ代を設けて、その削れ代を厚み検知ローラ２の軸方向全長に亘って外周面に接触させたものとする。
この他の構成は上述した第１の実施例と同様とする。
上述した構成による第３の実施例では、装置製造後の出荷テスト等において、基準ローラ１が図示しないモータからの駆動力により回転すると、この基準ローラ１に接触しているスクレーパ１０の削れ代１９と潤滑剤供給部材１２の削れ代２０が基準ローラ１により削られて調整され、基準ローラ１の外周面に密着する。 Although not shown in FIG. 3, the tip of the scraper 11 and the lubricant supply member 13 on the thickness detection roller 2 side is provided with a cutting allowance similar to the cutting allowances 19 and 20, respectively, and the thickness is detected. It is assumed that the outer peripheral surface is brought into contact with the entire length of the roller 2 in the axial direction.
Other configurations are the same as those of the first embodiment described above.
In the third embodiment having the above-described configuration, when the reference roller 1 is rotated by a driving force from a motor (not shown) in a shipping test after manufacturing the apparatus, the scraping allowance 19 of the scraper 10 in contact with the reference roller 1 is obtained. The shaving allowance 20 of the lubricant supply member 12 is adjusted by being scraped by the reference roller 1 and is in close contact with the outer peripheral surface of the reference roller 1.

また、図１に示すように基準ローラ１に圧接している厚み検知ローラ２は、基準ローラ１が回転することで従動的に回転するので、この厚み検知ローラ２に接触しているスクレーパ１１の図示しない削れ代及び潤滑剤供給部材１３の図示しない削れ代が厚み検知ローラ２により削られて調整され、厚み検知ローラ２の外周面に密着する。
装置出荷後における紙幣７の厚み検知、基準ローラ１と厚み検知ローラ２の外周面に付着した異物の除去、潤滑剤の供給は第１の実施例と同様行うことができ、第１の実施例と同様の効果が得られるが、本実施例では出荷テスト等において、基準ローラ１と厚み検知ローラ２を回転させることで、スクレーパ１０と潤滑剤供給部材１２及びスクレーパ１１と潤滑剤供給部材１３のそれぞれの先端を削れ代により基準ローラ１と厚み検知ローラ２に充分に密着させることができるので、スクレーパ１０と潤滑剤供給部材１２及びスクレーパ１１と潤滑剤供給部材１３のそれぞれの先端の平面度寸法の精度によることなく両ローラ１、２の外周面との密着性を確保することが可能となり、異物の掻き落し性能、潤滑剤の供給性能を向上させることができるという効果が得られる。 Further, as shown in FIG. 1, the thickness detection roller 2 that is in pressure contact with the reference roller 1 rotates in accordance with the rotation of the reference roller 1, so that the scraper 11 that is in contact with the thickness detection roller 2 The not-shown shaving allowance and the not-shown shaving allowance of the lubricant supply member 13 are adjusted by being shaved by the thickness detecting roller 2, and are in close contact with the outer peripheral surface of the thickness detecting roller 2.
The thickness detection of the banknote 7 after the shipment of the apparatus, the removal of foreign matter adhering to the outer peripheral surfaces of the reference roller 1 and the thickness detection roller 2, and the supply of the lubricant can be performed in the same manner as in the first embodiment. However, in this embodiment, the rotation of the reference roller 1 and the thickness detection roller 2 in the shipping test or the like causes the scraper 10, the lubricant supply member 12, the scraper 11, and the lubricant supply member 13 to rotate. Since the respective leading ends can be sufficiently brought into close contact with the reference roller 1 and the thickness detecting roller 2 by the cutting allowance, the flatness dimensions of the respective leading ends of the scraper 10 and the lubricant supply member 12 and the scraper 11 and the lubricant supply member 13 are obtained. It is possible to ensure adhesion to the outer peripheral surfaces of both rollers 1 and 2 without depending on the accuracy of the foreign matter, and improve the scraping performance of foreign matter and the supply performance of lubricant. An effect that can be obtained.

尚、上述した第３の実施例において、スクレーパ１０は装置寿命までローラとの摩擦に耐える耐摩耗性の高い樹脂材料を用いることが必要となる。
このときに出荷テスト等における初期摩耗のみでは削れ代（調整部）１９の削れが充分でなく装置出荷時にスクレーパ１０の先端が基準ローラ１の外周面に密着しないことがある。 In the third embodiment described above, the scraper 10 is required to use a highly wear-resistant resin material that can withstand friction with the roller until the life of the apparatus.
At this time, only the initial wear in a shipping test or the like is not enough to cut the cutting allowance (adjusting portion) 19, and the tip of the scraper 10 may not be in close contact with the outer peripheral surface of the reference roller 1 when the device is shipped.

そのためスクレーパ１０の先端に設ける削れ代１９の部分のみ、耐摩耗性の低い材料でスクレーパ１０と一体成形または２色成形することで、スクレーパ１０の先端を基準ローラ１の外周面に確実に密着させることが可能となる。
スクレーパ１１の先端に設ける削れ代についても同様にする。 Therefore, only the portion of the cutting allowance 19 provided at the tip of the scraper 10 is integrally formed with the scraper 10 or two-color molding with a material having low wear resistance, so that the tip of the scraper 10 is securely adhered to the outer peripheral surface of the reference roller 1. It becomes possible.
The same applies to the cutting allowance provided at the tip of the scraper 11.

図４は本発明の第４の実施例を示す要部側面図である。
上述した各実施例では、スクレーパ１０の他に潤滑剤供給部材１２を設けたものであるが、この第４の実施例は、耐摩耗性と摺動性を有する樹脂材料にＰＴＦＥ等の潤滑剤を混ぜてスクレーパ１０及び削れ代１９を形成し、この削れ代１９を基準ローラ１の軸方向全長に亘って外周面に接触させたものとしている。 FIG. 4 is a side view of an essential part showing a fourth embodiment of the present invention.
In each of the above-described embodiments, the lubricant supply member 12 is provided in addition to the scraper 10. However, in the fourth embodiment, a lubricant such as PTFE is added to a resin material having wear resistance and slidability. The scraper 10 and the cutting allowance 19 are formed by mixing the cutting allowance 19 with the outer peripheral surface over the entire axial length of the reference roller 1.

スクレーパ１１についても同様にし、これにより図１等に示した潤滑剤供給部材１２，１３等を省略した構成とする。
このような構成による第４の実施例では、第２、第３の実施例と同様に削れ代１９を出荷テスト等において基準ローラ１により削り、基準ローラ１の外周面に密着させることができる。 The scraper 11 is configured in the same manner, thereby omitting the lubricant supply members 12 and 13 shown in FIG.
In the fourth embodiment having such a configuration, the shaving allowance 19 can be shaved by the reference roller 1 in a shipping test or the like and brought into close contact with the outer peripheral surface of the reference roller 1 as in the second and third embodiments.

また、この実施例におけるスクレーパ１０及び削れ代１９は潤滑剤を混ぜているので、スクレーパ１０により異物の除去と潤滑剤の供給が可能となる。
スクレーパ１１についても同様である。
以上説明したように、第４の実施例では、耐摩耗性と摺動性を有する樹脂材料にＰＴＦＥ等の潤滑剤を混ぜてスクレーパ１０及び削れ代１９と、スクレーパ１１及びその削れ代を形成しているため、潤滑剤供給部材１２，１３等を特に設ける必要がなくなり、安価に実現できると共に、潤滑剤供給部材１２，１３等の占有スペースを確保する必要がなくなるという利点がある。 Further, since the scraper 10 and the cutting allowance 19 in this embodiment are mixed with a lubricant, the scraper 10 can remove foreign substances and supply the lubricant.
The same applies to the scraper 11.
As described above, in the fourth embodiment, the scraper 10 and the scraping allowance 19 and the scraper 11 and the scraping allowance thereof are formed by mixing a lubricant such as PTFE with a resin material having wear resistance and slidability. Therefore, there is no need to provide the lubricant supply members 12 and 13 in particular, which can be realized at low cost, and there is an advantage that it is not necessary to secure an occupied space for the lubricant supply members 12 and 13 and the like.

１ 基準ローラ
２ 厚み検知ローラ
３ 支点
４ ブラケット
５ 押圧スプリング
６ 厚み検知センサ
７ 紙幣
８ ガイド板
９ ガイド板
１０ スクレーパ
１１ スクレーパ
１２ 潤滑剤供給部材
１３ 潤滑剤供給部材
１４ 板バネ
１５ 板バネ
１６ 板バネ
１７ 板バネ
１８ 取付け板
１９ 削れ代
２０ 削れ代 1 reference roller 2 thickness detection roller 3 fulcrum 4 bracket 5 pressure spring 6 thickness detection sensor 7 banknote 8 guide plate 9 guide plate 10 scraper 11 scraper 12 lubricant supply member 13 lubricant supply member 14 plate spring 15 plate spring 16 plate spring 17 Leaf spring 18 Mounting plate 19 Cutting allowance 20 Cutting allowance

Claims (5)

駆動原により回転する基準ローラと、この基準ローラに対して接触、離間可能に配置されていて基準ローラと共に回転する厚み検知ローラを備え、紙葉状媒体を前記基準ローラと厚み検知ローラで挟持することで厚み検知ローラが基準ローラから離間したときの変位をセンサで検知し、かつ前記基準ローラと厚み検知ローラの外周面にそれぞれスクレーパを接触させてローラ表面の異物を除去する紙葉状媒体の厚み検知装置において、
潤滑剤を含んだ樹脂材料により形成された潤滑剤供給部材を前記基準ローラと厚み検知ローラの外周面にそれぞれ接触させたことを特徴とする紙葉状媒体の厚み検知装置。 A reference roller rotating by a driving source, contact with the reference roller, comprising a thickness detection roller which rotates together with the reference roller is separably arranged, to hold the paper-like medium in the reference roller and the thickness detection roller The thickness of the sheet-like medium in which the displacement when the thickness detection roller is separated from the reference roller is detected by a sensor, and the scraper is brought into contact with the outer peripheral surfaces of the reference roller and the thickness detection roller to remove foreign matters on the roller surface. In the detection device,
A thickness detection device for a sheet-like medium, wherein a lubricant supply member formed of a resin material containing a lubricant is brought into contact with the outer peripheral surfaces of the reference roller and the thickness detection roller. 請求項１記載の紙葉状媒体の厚み検知装置において、
前記各スクレーパと前記各潤滑剤供給部材の先端に削れ代を設けて、それぞれの削れ代を前記基準ローラと厚み検知ローラの外周面にそれぞれ接触させ、前記基準ローラと厚み検知ローラの回転によりそれぞれの削れ代を削ることで、前記基準ローラと厚み検知ローラに対する前記各スクレーパと前記各潤滑剤供給部材の先端の密着性を確保することを特徴とする紙葉状媒体の厚み検知装置。 In the thickness detection apparatus of the paper-like medium of Claim 1,
A scraping margin is provided at the tip of each scraper and each lubricant supply member, the respective scraping margins are brought into contact with the outer peripheral surfaces of the reference roller and the thickness detection roller, respectively, and rotation of the reference roller and the thickness detection roller respectively. An apparatus for detecting the thickness of a sheet-like medium, wherein the scraping margin of each of the scraper and the tip of each lubricant supply member with respect to the reference roller and the thickness detection roller is secured. 請求項１記載の紙葉状媒体の厚み検知装置において、
前記各スクレーパを耐摩耗性の高い樹脂材料で形成し、各スクレーパに設けられる前記削れ代を耐摩耗性の低い樹脂材料で形成したことを特徴とする紙葉状媒体の厚み検知装置。 In the thickness detection apparatus of the paper-like medium of Claim 1,
An apparatus for detecting a thickness of a sheet-like medium, wherein each scraper is formed of a resin material having high wear resistance, and the shaving allowance provided in each scraper is formed of a resin material having low wear resistance. 駆動原により回転する基準ローラと、この基準ローラに対して接触、離間可能に配置されていて基準ローラと共に回転する厚み検知ローラを備え、紙葉状媒体を前記基準ローラと厚み検知ローラで挟持することで厚み検知ローラが基準ローラから離間したときの変位をセンサで検知し、かつ前記基準ローラと厚み検知ローラの外周面にそれぞれスクレーパを接触させてローラ表面の異物を除去する紙葉状媒体の厚み検知装置において、
前記各スクレーパを潤滑剤を含んだ樹脂材料により形成したことを特徴とする紙葉状媒体の厚み検知装置。 A reference roller rotating by a driving source, contact with the reference roller, comprising a thickness detection roller which rotates together with the reference roller is separably arranged, to hold the paper-like medium in the reference roller and the thickness detection roller The thickness of the sheet-like medium in which the displacement when the thickness detection roller is separated from the reference roller is detected by a sensor, and the scraper is brought into contact with the outer peripheral surfaces of the reference roller and the thickness detection roller to remove foreign matters on the roller surface. In the detection device,
A thickness detection device for a sheet-like medium, wherein each scraper is formed of a resin material containing a lubricant. 請求項４記載の紙葉状媒体の厚み検知装置において、
前記各スクレーパの先端に同じ樹脂材料で形成した削れ代を設けて、それぞれの削れ代を前記基準ローラと厚み検知ローラの外周面にそれぞれ接触させ、前記基準ローラと厚み検知ローラの回転によりそれぞれの削れ代を削ることで、前記基準ローラと厚み検知ローラに対する前記各スクレーパの先端の密着性を確保することを特徴とする紙葉状媒体の厚み検知装置。 In the thickness detection apparatus of the paper-like medium of Claim 4 ,
A scraping margin formed of the same resin material is provided at the tip of each scraper, and the respective scraping margins are brought into contact with the outer peripheral surfaces of the reference roller and the thickness detection roller, respectively. by scraping the scraping allowance, the thickness detecting apparatus sheet-form medium characterized by ensuring adhesion of said each scraper tip with respect to the reference roller and the thickness detection roller.
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