JPH0830740B2 - Liquid foreign matter inspection device - Google Patents
Liquid foreign matter inspection deviceInfo
- Publication number
- JPH0830740B2 JPH0830740B2 JP15089990A JP15089990A JPH0830740B2 JP H0830740 B2 JPH0830740 B2 JP H0830740B2 JP 15089990 A JP15089990 A JP 15089990A JP 15089990 A JP15089990 A JP 15089990A JP H0830740 B2 JPH0830740 B2 JP H0830740B2
- Authority
- JP
- Japan
- Prior art keywords
- container
- foreign matter
- detection sensor
- liquid
- matter inspection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims description 19
- 238000007689 inspection Methods 0.000 title claims description 16
- 238000001514 detection method Methods 0.000 claims description 28
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 230000032258 transport Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 6
- 230000035945 sensitivity Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000004907 flux Effects 0.000 description 6
- 235000013361 beverage Nutrition 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011896 sensitive detection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Description
【発明の詳細な説明】 ＜本発明の産業上の利用分野＞ 本発明は、ビン等の容器に収容された液体内の異物の
有無を検査する液内異物検査装置に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Field of Use of the Present Invention> The present invention relates to a liquid foreign matter inspection apparatus for inspecting the presence or absence of foreign matter in a liquid contained in a container such as a bottle.
＜従来の技術＞ 種々の飲料品を生産している工場では、その容器にジ
ュース等の飲料を注入して、キャップ止めするという一
連の作業が自動化されている。<Prior Art> In a factory producing various beverages, a series of operations of injecting a beverage such as juice into a container and capping the container is automated.
第６図はこの工程を簡単に示しており、口部1aをレー
ル２に支持されながら注入器３の下方に移動してきた空
の容器１には、飲料４が適量注入される。この容器１
は、キャップ取付器５の下方まで移動し、口部1aにキャ
ップ６が取付けられ、次の工程に搬送される。FIG. 6 simply shows this step, and an appropriate amount of the beverage 4 is injected into the empty container 1 which has moved below the injector 3 while the mouth portion 1a is supported by the rail 2. This container 1
Moves to below the cap attaching device 5, the cap 6 is attached to the mouth portion 1a, and the cap is conveyed to the next step.
ところが、このようにして生産された飲料品には、種
々の異物が混入する恐れがある。特に、異物金属の混入
は、この種の飲料品にとって致命的な欠陥となるため、
その混入の有無を厳重に検査する必要がある。However, various foreign substances may be mixed in the beverage product thus produced. In particular, the inclusion of foreign metal is a fatal defect for this type of beverage,
It is necessary to strictly inspect for the presence or absence of such contamination.
このために、第７図に示すように、磁界発生器８と、
この磁界の磁束変化を検出するための２つの受信コイル
９、９とを、容器１の搬送路の上下に対向配置し、その
受信コイルの差動出力のレベルによって異物金属の混入
の有無を判定するようにしている。For this purpose, as shown in FIG.
The two receiving coils 9 and 9 for detecting the change in the magnetic flux of the magnetic field are arranged above and below the conveyance path of the container 1, and the presence or absence of foreign metal is determined by the level of the differential output of the receiving coils. I am trying to do it.
＜解決すべき課題＞ しかしながら、容器１のキャップ６として、金属製の
物が取付けられることも多く、このようなキャップが取
付けられた場合、小さな異物金属が磁束に与える影響に
比べて、キャップによる影響の方がはるかに大きく、異
物金属の有無を判定することが極めて困難となる。<Problems to be solved> However, as the cap 6 of the container 1, a metal object is often attached, and when such a cap is attached, the cap 6 is different from the effect of a small foreign metal on the magnetic flux. The effect is much greater, and it becomes extremely difficult to determine the presence or absence of foreign metal.
また、容器１の搬送をガイドするレールの材質にも大
きな制限を受けるため、限られた製品しか検査できず、
結局目視検査に頼らなければならない。In addition, since the material of the rail that guides the transportation of the container 1 is greatly limited, only limited products can be inspected,
After all, you have to rely on visual inspection.
本発明は、この課題を解決した液内異物検査装置を提
供することを目的としている。An object of the present invention is to provide an in-liquid foreign matter inspection device that solves this problem.
＜課題を解決するための手段＞ 前記課題を解決するため、本発明の請求項１の液内異
物検査装置は、 液体が収容された容器を略水平に搬送する搬送装置
と、該搬送装置の下方に配置された検出センサとを有
し、前記搬送装置によって所定方向に搬送される容器内
の異物金属を前記検出センサで検出する液内異物検査装
置であって、 前記検出センサは、 偏平な筐体と、 前記筐体の側壁内周に沿って巻かれ該筐体の上面から
容器の底部が通過する範囲に集中的に磁界を発生する送
信コイルと、 前記送信コイルの内側を２等分する線と前記送信コイ
ルの内周とにほぼ内接するように容器の搬送方向に並ん
で配置され、前記搬送装置によって搬送される容器の底
部に沈下している異物金属による磁界変化を検出する一
対の受信コイルとを備えている。<Means for Solving the Problems> In order to solve the above problems, an in-liquid foreign matter inspection device according to claim 1 of the present invention is a transport device that transports a container containing a liquid substantially horizontally, and a transport device of the transport device. A liquid foreign matter inspection device having a detection sensor arranged below, wherein the detection sensor detects foreign metal in a container transported in a predetermined direction by the transport device, wherein the detection sensor is a flat A casing, a transmitter coil wound along an inner circumference of a side wall of the casing and generating a magnetic field intensively in a range where a bottom of the container passes from an upper surface of the casing, and the inside of the transmitter coil is divided into two equal parts. Line and the inner circumference of the transmission coil are arranged side by side in the container transport direction so as to be inscribed substantially, and detect a magnetic field change due to a foreign metal sinking on the bottom of the container transported by the transport device. With receiver coil .
また、本発明の請求項２の液内異物検査装置は、 液体が収容された容器を吊支しながら略水平に搬送す
る搬送装置と、該搬送装置の下方に配置された検出セン
サとを有し、前記搬送装置によって所定方向に搬送され
る容器内の異物金属を前記検出センサで検出する液内異
物検査装置であって、 前記検出センサは、 上面が磁気的に開口され側面および下面が磁気的に遮
蔽された偏平の筐体と、 前記筐体の側壁内周に沿って巻かれ該筐体の磁気遮蔽
によって該筐体の上面から容器の底部が通過する範囲に
集中的に限界を発生する送信コイルと、 前記送信コイルの内側を２等分する線と前記送信コイ
ルの内周とにほぼ内接するように容器の搬送方向に並ん
で配置され、前記搬送装置によって搬送される容器の底
部に沈下している異物金属による磁界変化を検出する一
対の受信コイルとを備えている。Further, the in-liquid foreign matter inspection device according to claim 2 of the present invention includes a transfer device that transfers the container containing the liquid in a substantially horizontal direction while suspending and supporting the container, and a detection sensor disposed below the transfer device. In the liquid foreign matter inspection device, the detection sensor detects foreign matter metal in a container that is conveyed in a predetermined direction by the conveyance device, and the detection sensor has an upper surface magnetically opened and a side surface and a lower surface magnetically. And a flat housing that is shielded mechanically, and the magnetic shield of the housing that is wound along the inner circumference of the side wall causes a concentrated limit in the range from the top surface of the housing to the bottom of the container. And a bottom part of the container which is conveyed by the conveying device and is arranged side by side in the conveying direction of the container so as to substantially inscribe the line that divides the inside of the transmitting coil into two equal parts and the inner circumference of the transmitting coil. Due to foreign metal sinking to And a pair of receiving coils for detecting the field change.
＜作用＞ このように構成したため、本発明の液内異物検査装置
では、検出センサの送信コイルが発生する磁束の殆どが
１対の受信コイル内を通過し、筐体の上面から容器の底
部が通過する範囲に集中されるので、容器の底部に沈下
した異物金属を高感度に検出することができる。<Operation> With this configuration, in the in-liquid foreign matter inspection device of the present invention, most of the magnetic flux generated by the transmission coil of the detection sensor passes through the pair of reception coils, and the bottom of the container moves from the top surface of the casing to the bottom portion of the container. Since it is concentrated in the range of passage, it is possible to detect with high sensitivity the foreign metal that has settled on the bottom of the container.
＜本発明の実施例＞ 以下、図面に基づいて本発明の一実施例を説明する。<Embodiment of the present invention> An embodiment of the present invention will be described below with reference to the drawings.
第１図は、一実施例の液内異物検査装置の構成を示す
図であり、10は平板状に形成された検出センサである。FIG. 1 is a diagram showing the configuration of an in-liquid foreign matter inspection device according to an embodiment, and 10 is a detection sensor formed in a flat plate shape.
第２図は、この検出センサ10の平面図を示し、第３図
は、そのIII−III断面図を示している。FIG. 2 shows a plan view of the detection sensor 10, and FIG. 3 shows a sectional view taken along the line III-III.
第２図および第３図において、11は、上方が開口され
た偏平な矩形状のセンサ筐体であり、磁気シールドの目
的からアルミ材で形成されている。In FIG. 2 and FIG. 3, reference numeral 11 denotes a flat rectangular sensor housing having an upper opening, which is made of an aluminum material for the purpose of magnetic shielding.
12は、センサ筐体11の内部の最外側に配置された送信
コイルであり、13はそのコイル枠である。Reference numeral 12 is a transmission coil arranged on the outermost side inside the sensor housing 11, and 13 is a coil frame thereof.
14、15は、送信コイル12の内側を２等分する線と送信
コイル12の内周とにほぼ内接するように容器の搬送方向
に並んで配置された同一口径の受信コイルであり、それ
ぞれコイル枠16、17に巻かれている。Reference numerals 14 and 15 denote receiving coils of the same diameter, which are arranged side by side in the transport direction of the container so as to be substantially inscribed in a line bisecting the inside of the transmitting coil 12 and the inner circumference of the transmitting coil 12, respectively. It is wrapped in frames 16 and 17.
なお、２つの受信コイル14、15は、送信コイル12を交
流電源で励磁したとき、ほぼ等量の磁束が鎖交するよう
に形成されている。It should be noted that the two receiving coils 14 and 15 are formed so that when the transmitting coil 12 is excited by an AC power source, substantially equal amounts of magnetic flux are linked.
18はセンサカバーであり、送信コイル12を励磁したと
きに発生する磁束を損失なく透過させるようにプラスチ
ック等で形成されている。Reference numeral 18 denotes a sensor cover, which is made of plastic or the like so that the magnetic flux generated when the transmitter coil 12 is excited can be transmitted without loss.
このように形成された検出センサ10の受信コイル面近
傍の検出感度は、前述した対向型に比べて著しく高く、
例えば直径1mmの金属（比透磁率20）を同一条件（各コ
イルの径、励磁電源等）で検出する場合の差動電圧出力
は、第４図に示すように、受信コイル面からの距離が60
mm以下では、ほぼ３倍から15倍の出力が得られ、特に受
信コイル面近傍では非常に高感度となることが計算上か
ら得られており、実際の検出感度もこれと同等の検出特
性が得られている。The detection sensitivity in the vicinity of the receiving coil surface of the detection sensor 10 formed in this way is significantly higher than that of the above-described facing type,
For example, the differential voltage output when a metal with a diameter of 1 mm (relative magnetic permeability of 20) is detected under the same conditions (diameter of each coil, excitation power supply, etc.), as shown in FIG. 60
Output values of 3 to 15 times are obtained at mm or less, and it has been calculated from calculations that the sensitivity is extremely high, especially in the vicinity of the receiving coil surface, and the actual detection sensitivity has a detection characteristic equivalent to this. Has been obtained.
なお、第４図では示されていないが、60mmより離れた
金属に対する感度は、対向型に比べて著しく低い。Although not shown in FIG. 4, the sensitivity to metals away from 60 mm is significantly lower than that of the facing type.
第５図は、この検出センサ10の２つの受信コイル14、
15の差動出力により、異物金属の有無を判定するための
ブロック図を示しており、バランスボリウム20の出力を
増幅器21で増幅し、その増幅出力を検波回路22で検波
し、この検波出力レベルを、判定回路23において基準レ
ベルと比較することにより、判定結果を得るように構成
されている。FIG. 5 shows two receiving coils 14 of the detection sensor 10,
A block diagram for determining the presence or absence of foreign metal by the differential output of 15 is shown. The output of the balance volume 20 is amplified by the amplifier 21, and the amplified output is detected by the detection circuit 22. Is compared with a reference level in the determination circuit 23 to obtain a determination result.
なお、24は送信コイル12を励磁する励磁回路である。 Incidentally, 24 is an exciting circuit for exciting the transmitting coil 12.
検出センサ10は、第１図に示したように、レール６に
ガイドされながら搬送される容器１の底面1bと対向する
僅かに離れた位置に配置されている。As shown in FIG. 1, the detection sensor 10 is arranged at a position slightly opposite to the bottom surface 1b of the container 1 conveyed while being guided by the rail 6.
25は、一方のレール２に沿って移動するベルトで、他
方のレール２側に突出する搬送ピン26を有しており、容
器１は、この搬送ピン26に押されるようにして検出セン
サ10の上を通過する。Reference numeral 25 denotes a belt that moves along one rail 2 and has a transport pin 26 projecting to the other rail 2 side, and the container 1 is pushed by this transport pin 26 so that the detection sensor 10 can be operated. Pass over.
このとき、容器１内に異物金属が混入して、その底に
沈下していると、この異物金属は検出センサの受信コイ
ル面に近い部分を通過することになり、高感度で検出す
ることができる。At this time, if a foreign metal is mixed in the container 1 and sinks to the bottom, the foreign metal will pass through a portion near the receiving coil surface of the detection sensor, which allows highly sensitive detection. it can.
なお、金属製のキャップが取付けられている場合で
も、受信コイル面からキャップ位置までの距離が大きい
ため、キャップに対する感度は著しく小さく、検査に大
きな影響を与えることはない。Even if a metal cap is attached, the distance from the receiving coil surface to the cap position is large, so the sensitivity to the cap is extremely small and does not significantly affect the inspection.
＜本発明の他の実施例＞ また、前記実施例では、検出センサ10の各コイルをコ
イル枠に巻いていたが、プリント基板上にパターンでコ
イルを形成するようにしてもよい。<Other Embodiments of the Present Invention> In addition, although the coils of the detection sensor 10 are wound around the coil frame in the above embodiments, the coils may be formed in a pattern on the printed board.
＜本発明の効果＞ 本発明の液内異物検査装置は、前記説明のように、偏
平な筐体の側壁内周に沿って巻かれた送信コイルが、筐
体の上面から容器の底部が通過する範囲に集中的に磁界
を発生させ、しかも、この磁界の変化を検出するための
１対の受信コイルが、送信コイルの内側を容器の搬送方
向に２等分する線と送信コイルの内周とにほぼ内接する
ように配置されているから、送信コイルが発生する磁束
の殆どが１対の受信コイル内を通過して筐体上面近傍に
集中するため、容器底部付近の異物金属の検出を、この
底部から離れたキャップや他の機構等の影響を受けるこ
となく、格段に高感度に行なうことができる。<Effects of the Present Invention> In the liquid foreign matter inspection apparatus of the present invention, as described above, the transmission coil wound along the inner circumference of the side wall of the flat housing passes from the top surface of the housing to the bottom portion of the container. A pair of receiving coils for generating a magnetic field intensively in the range of the magnetic field, and for detecting the change of the magnetic field, divides the inside of the transmitting coil into two equal parts in the carrying direction of the container and the inner circumference of the transmitting coil. Since most of the magnetic flux generated by the transmitter coil passes through the pair of receiver coils and concentrates near the top surface of the housing, it is possible to detect foreign metal near the bottom of the container. , And can be performed with extremely high sensitivity without being affected by the cap or other mechanism away from the bottom.
第１図は一実施例の外観を示す斜視図、第２図はその要
部を示す平面図、第３図は第２図のIII−III断面図であ
る。 第４図は一実施例の検出感度の特性を示す図、第５図
は、一実施例の回路構成を示すブロック図である。 第６図は検査工程を説明する図、第７図は従来の検出部
の構成を示す図である。 １……容器、10……検出センサ、12……送信コイル、1
4,15……受信コイル、25……ベルト。FIG. 1 is a perspective view showing the external appearance of one embodiment, FIG. 2 is a plan view showing the main parts thereof, and FIG. 3 is a sectional view taken along the line III-III in FIG. FIG. 4 is a diagram showing the characteristics of the detection sensitivity of one embodiment, and FIG. 5 is a block diagram showing the circuit configuration of one embodiment. FIG. 6 is a diagram for explaining the inspection process, and FIG. 7 is a diagram showing the configuration of a conventional detection unit. 1 ... Container, 10 ... Detection sensor, 12 ... Transmission coil, 1
4,15 …… Reception coil, 25 …… Belt.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−145989（ＪＰ，Ａ) 実開 昭59−117984（ＪＰ，Ｕ) 特公 昭48−39745（ＪＰ，Ｂ１) 特公 昭53−41982（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Laid-Open No. 2-145989 (JP, A) SAIKAI 59-117984 (JP, U) JP 48-39745 (JP, B1) JP 53- 41982 (JP, B2)
Claims (2)
搬送装置と、該搬送装置の下方に配置された検出センサ
とを有し、前記搬送装置によって所定方向に搬送される
容器内の異物金属を前記検出センサで検出する液内異物
検査装置であって、 前記検出センサは、 偏平な筐体と、 前記筐体の側壁内周に沿って巻かれ該筐体の上面から容
器の底部が通過する範囲に集中的に磁界を発生する送信
コイルと、 前記送信コイルの内側を２等分する線と前記送信コイル
の内周とにほぼ内接するように容器の搬送方向に並んで
配置され、前記搬送装置によって搬送される容器の底部
に沈下している異物金属による磁界変化を検出する一対
の受信コイルとを備えていることを特徴とする液内異物
検査装置。1. A container within a container which is conveyed in a predetermined direction by a conveying device, which has a conveying device for conveying a container containing a liquid substantially horizontally, and a detection sensor arranged below the conveying device. A liquid foreign matter inspection device for detecting foreign metal with the detection sensor, wherein the detection sensor is a flat casing, and is wound along an inner circumference of a side wall of the casing to a bottom of the container from an upper surface of the casing. Are arranged side by side in the carrying direction of the container so as to substantially inscribe the inner circumference of the transmitter coil and the line bisecting the inside of the transmitter coil. An in-liquid foreign matter inspection device comprising: a pair of receiving coils for detecting a change in magnetic field due to a foreign matter metal sinking at the bottom of the container transported by the transport device.
平に搬送する搬送装置と、該搬送装置の下方に配置され
た検出センサとを有し、前記搬送装置によって所定方向
に搬送される容器内の異物金属を前記検出センサで検出
する液内異物検査装置であって、 前記検出センサは、 上面が磁気的に開口され側面および下面が磁気的に遮蔽
された偏平の筐体と、 前記筐体の側壁内周に沿って巻かれ該筐体の磁気遮蔽に
よって該筐体の上面から容器の底部が通過する範囲に集
中的に磁界を発生する送信コイルと、 前記送信コイルの内側を２等分する線と前記送信コイル
の内周とにほぼ内接するように容器の搬送方向に並んで
配置され、前記搬送装置によって搬送される容器の底部
に沈下している異物金属による磁界変化を検出する一対
の受信コイルとを備えていることを特徴とする液内異物
検査装置。2. A transporting device for transporting a container containing a liquid in a substantially horizontal manner while suspending and supporting the container, and a detection sensor disposed below the transporting device, the transporting device transports the container in a predetermined direction. An in-liquid foreign matter inspection device for detecting foreign matter metal in a container with the detection sensor, wherein the detection sensor includes a flat casing having an upper surface magnetically opened and side surfaces and a lower surface magnetically shielded, A transmitter coil that is wound along the inner circumference of the side wall of the housing and that intensively generates a magnetic field in the range where the bottom of the container passes from the top surface of the housing due to the magnetic shielding of the housing; A magnetic field change caused by a foreign metal which is arranged side by side in the carrying direction of the container so as to be substantially inscribed in the bisector and the inner circumference of the transmitting coil, and which is caused by a foreign metal sinking to the bottom of the container carried by the carrying device. A pair of receiving coils to detect An in-liquid foreign matter inspection device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15089990A JPH0830740B2 (en) | 1990-06-08 | 1990-06-08 | Liquid foreign matter inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15089990A JPH0830740B2 (en) | 1990-06-08 | 1990-06-08 | Liquid foreign matter inspection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0443990A JPH0443990A (en) | 1992-02-13 |
| JPH0830740B2 true JPH0830740B2 (en) | 1996-03-27 |
Family
ID=15506816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15089990A Expired - Fee Related JPH0830740B2 (en) | 1990-06-08 | 1990-06-08 | Liquid foreign matter inspection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0830740B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4614316B2 (en) * | 2004-08-31 | 2011-01-19 | アドバンスフードテック株式会社 | Intracarcass injection needle detection device and detection method |
| JP5155755B2 (en) | 2008-07-10 | 2013-03-06 | 株式会社荏原製作所 | Magnetic film plating apparatus and plating equipment |
| JP6294112B2 (en) * | 2014-03-13 | 2018-03-14 | アンリツインフィビス株式会社 | Metal detector |
| JP6777305B2 (en) * | 2015-08-11 | 2020-10-28 | ハリコム株式会社 | Metal detector |
| JP7161726B2 (en) * | 2019-03-14 | 2022-10-27 | 株式会社ヤクルト本社 | Container double cap detection device and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4839745A (en) * | 1971-09-17 | 1973-06-11 | ||
| JPS5341982A (en) * | 1976-09-29 | 1978-04-15 | Hitachi Ltd | Wafer holder for ion implantation processing |
| JPS59117984U (en) * | 1983-01-29 | 1984-08-09 | 株式会社島津製作所 | metal detector |
-
1990
- 1990-06-08 JP JP15089990A patent/JPH0830740B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0443990A (en) | 1992-02-13 |
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