JP2001112464A - Lid for petri dish - Google Patents
Lid for petri dishInfo
- Publication number
- JP2001112464A JP2001112464A JP29084899A JP29084899A JP2001112464A JP 2001112464 A JP2001112464 A JP 2001112464A JP 29084899 A JP29084899 A JP 29084899A JP 29084899 A JP29084899 A JP 29084899A JP 2001112464 A JP2001112464 A JP 2001112464A
- Authority
- JP
- Japan
- Prior art keywords
- lid
- main body
- petri dish
- top plate
- rib
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/38—Caps; Covers; Plugs; Pouring means
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/02—Form or structure of the vessel
- C12M23/10—Petri dish
Landscapes
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical & Material Sciences (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Sustainable Development (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Clinical Laboratory Science (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、主として微生物や
細胞組織の培養等に使用されるシャーレに係り、特に薄
肉のプラスチックシートから成型されるシャーレの蓋に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a petri dish mainly used for culturing microorganisms and cell tissues, and more particularly to a petri dish lid molded from a thin plastic sheet.
【０００２】[0002]
【従来の技術】従来から広く利用されているシャーレ
は、特に耐熱性が要求されるものを除けば、その多くが
プラスチック素材によって成形される。また、その製造
方法は射出成型よりも低コストで済む真空あるいは真空
圧空成型を採用することがあり、この場合、薄肉のプラ
スチックシートを素材とするものであった。2. Description of the Related Art Petri dishes that have been widely used in the past, except for those requiring particularly heat resistance, are mostly formed of plastic materials. In addition, the manufacturing method may employ vacuum or vacuum pressure molding, which requires less cost than injection molding. In this case, a thin plastic sheet is used as a material.
【０００３】ところでシャーレは、製造ラインから連続
して包装ラインに移行され、蓋と本体を組み合わせた状
態のものを１セットとして、これを複数セット積み重ね
た状態で出荷するのが一般的である。さらに包装ライン
の次工程である滅菌工程では、複数セットのシャーレを
収容した包装袋を一旦減圧し、次いで滅菌ガスを封入す
る。ここで包装袋の減圧時や滅菌ガスの封入時には積み
重ねたシャーレに圧縮荷重が働くが、この種シャーレは
上述のように極めて薄いプラスチックシートから成形さ
れることに加えて、蓋や本体は滅菌工程は加熱された軟
らかい状態にあるため、上記圧縮荷重によりシャーレが
不用意に変形するといった問題があった。[0003] In general, petri dishes are continuously transferred from a production line to a packaging line, and a set of a combination of a lid and a main body is generally set as a set and shipped in a state where a plurality of sets are stacked. Further, in a sterilization process which is the next process of the packaging line, the pressure of the packaging bag containing a plurality of sets of petri dishes is once reduced, and then a sterilizing gas is sealed. Here, when the packaging bag is depressurized or filled with sterilizing gas, a compressive load acts on the stacked petri dishes. In addition to this type of petri dish being formed from an extremely thin plastic sheet as described above, the lid and the main body are subjected to a sterilization process. Since the sample was in a heated and soft state, there was a problem that the petri dish was inadvertently deformed by the compressive load.
【０００４】他方、シャーレの包装形態として、蓋同士
を複数枚重ね、これに複数枚重ね合わせた本体をセット
とすることもある。しかし、この包装形態であると上記
変形の他に、重ね合わせた蓋あるいは本体同士が圧縮荷
重によって密着してしまい、使用するときに密着した蓋
同士、本体同士を離しにくいという課題があった。[0004] On the other hand, as a packaging form of a petri dish, there is a case where a plurality of lids are stacked and a main body in which a plurality of lids are stacked is set. However, in this packaging form, in addition to the above-described deformation, there is a problem that the lids or the main bodies that are overlapped adhere to each other due to a compressive load, and the lids or the main bodies that are in close contact with each other are difficult to separate when used.
【０００５】そこで、本出願人はシャーレのうち本体側
の周壁面にリブを形成する技術を見出した（特開平７−
２２３２５７号公報）。この出願に係る発明によれば、
当該リブによって本体が補強され、圧縮荷重に耐え得る
ものである。また、リブをランダム位置に複数設けるこ
とにより、本体同士が密着することを防ぐものである。Accordingly, the present applicant has found a technique of forming a rib on the peripheral wall surface of the petri dish on the side of the main body (Japanese Patent Laid-Open No. 7-1995).
223257). According to the invention according to this application,
The rib reinforces the main body and can withstand a compressive load. Further, by providing a plurality of ribs at random positions, it is possible to prevent the main bodies from sticking to each other.
【０００６】[0006]
【発明が解決しようとする課題】しかし、本出願人によ
る上記従来の技術では、確かにリブによって本体の強度
を高めることができるが、もともと本体の周壁は低く安
定感があるため、この周壁自体がリブとして機能する。
即ち、この種シャーレにおいて本体は、当初より上下方
向の圧縮力に対抗し得る強度を有しているといえ、その
後の実施により本体をさらに補強する必要はないことが
判明した。However, in the above-mentioned prior art by the present applicant, although the strength of the main body can be certainly increased by the ribs, since the peripheral wall of the main body is originally low and has a sense of stability, the peripheral wall itself is not used. Function as ribs.
That is, in this type of petri dish, it can be said that the main body has a strength that can withstand the compressive force in the vertical direction from the beginning, and it has been found that there is no need to further reinforce the main body by the subsequent execution.
【０００７】言い換えれば、補強が必要なのは本来的に
強度が不足している蓋の方であって、本発明はシャーレ
のうち蓋を特殊な形状とすることによって、圧縮荷重に
よる変形を防止すると共に、蓋同士の密着をも防止する
技術を開示するものである。[0007] In other words, it is necessary to reinforce the lid which originally has insufficient strength, and the present invention prevents deformation due to a compressive load by forming the lid of the petri dish into a special shape. It discloses a technique for preventing the lids from being in close contact with each other.
【０００８】[0008]
【課題を解決するための手段】上述した目的を達成する
ために、薄肉のプラスチックシートからなるシャーレの
蓋において、円形の天板に周壁を形成すると共に、前記
天板を凹陥して当該天板と同心で一定幅を有する環状の
リブを形成してなり、さらにリブにその幅の外側一部を
凹成してなるスタッキングボスを複数設けるという手段
を用いた。In order to achieve the above-mentioned object, in a lid of a petri dish made of a thin plastic sheet, a peripheral wall is formed on a circular top plate, and the top plate is recessed to form a peripheral wall. An annular rib having a constant width is formed concentrically with the above, and a plurality of stacking bosses are formed on the rib by recessing the outer part of the width.
【０００９】この手段によれば、リブはスタッキングボ
スを除く部分で環状に連続し、圧縮荷重に抗して蓋の変
形を防止する。スタッキングボスは蓋の裏面において突
出し、蓋を積み重ねたとき、上下段の蓋のリブと当接し
て、蓋同士の密着を防止する。また、蓋と本体を組み合
わせたときは、本体の胴部上縁と当接して通気性を確保
する。さらに蓋の天板の凹陥部は本体の底が合致し、本
体のズレが防止される。According to this means, the rib is annularly continuous except for the stacking boss, thereby preventing the lid from being deformed against the compressive load. The stacking boss protrudes from the back surface of the lid, and when the lids are stacked, abuts the ribs of the upper and lower lids to prevent the lids from sticking to each other. Further, when the lid and the main body are combined, the lid and the main body come into contact with the upper edge of the body to ensure air permeability. Further, the concave portion of the top plate of the lid matches the bottom of the main body, thereby preventing the main body from shifting.
【００１０】[0010]
【発明の実施の形態】以下、本発明の好ましい実施の形
態を添付した図面に従って説明する。図１は本発明の一
実施形態に係るシャーレの蓋１を示したもので、円形天
板２の周囲には周壁３が形成され、さらに天板２の内寄
りを円形に凹陥して、天板２と同心に一定幅を有する環
状のリブ４が形成されている。また、リブ４の数カ所に
は、周壁３との角隅部、即ちリブ４の幅の外側一部を凹
成して密着防止用のスタッキングボス５が形成されてい
る。なお、この蓋１は、公知の真空成型法あるいは真空
圧空成型法により薄肉プラスチックシートから成型され
る。Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a petri dish lid 1 according to an embodiment of the present invention. A peripheral wall 3 is formed around a circular top plate 2, and the inner side of the top plate 2 is further concaved into a circular shape. An annular rib 4 having a constant width is formed concentrically with the plate 2. In several places of the rib 4, a stacking boss 5 for preventing adhesion is formed by recessing a corner portion with the peripheral wall 3, that is, a part outside the width of the rib 4. The lid 1 is molded from a thin plastic sheet by a known vacuum molding method or vacuum pressure molding method.
【００１１】上記蓋１において、スタッキングボス５は
リブ４の全幅に設けるのではなく、リブ４の幅の一部を
凹成し、当該リブ４の内側に環状連続部４ａを残すよう
に形成されている。In the lid 1, the stacking boss 5 is formed not so as to cover the entire width of the rib 4 but to form a part of the width of the rib 4 so as to leave an annular continuous portion 4a inside the rib 4. ing.
【００１２】図２は、シャーレの包装工程における上記
蓋１と本体Ｋとの組み合わせを示したもので、蓋１はそ
のスタッキングボス５が本体Ｋの上縁Ｋ１と当接するよ
うに本体Ｋにセットされる。また、本体Ｋはその底Ｋ２
が蓋１の凹陥部６に嵌入するように蓋１に載置され、こ
の状態でシャーレは複数段積み重ねられる。FIG. 2 shows a combination of the lid 1 and the main body K in a petri dish packaging process. The lid 1 is set on the main body K such that its stacking boss 5 contacts the upper edge K1 of the main body K. Is done. The main body K has a bottom K2.
Are placed on the lid 1 so as to fit into the recesses 6 of the lid 1, and in this state, the petri dishes are stacked in a plurality of stages.
【００１３】従って、この包装態様で積み重ねたシャー
レに圧縮荷重がかかった場合、蓋１にリブ４が形成され
ていないとすれば、蓋１はその天板２の中央がくぼむよ
うに反り返る変形を起こす。しかし、本実施形態の蓋１
は、リブ４により補強されているため、このような変形
は発現しない。ここで、リブ４はスタッキングボス５…
５を除く部分で連続しているため、補強度は低下しな
い。換言すればリブ４の全幅にスタッキングボスを設け
た場合には、リブ４が寸断され、補強度は低下する。Therefore, when a compressive load is applied to the petri dishes stacked in this packaging mode, if the ribs 4 are not formed on the lid 1, the lid 1 warps so that the center of the top plate 2 is depressed. . However, the lid 1 of the present embodiment
Is not reinforced by the ribs 4, such deformation does not occur. Here, the rib 4 is a stacking boss 5.
Since the portions other than 5 are continuous, the degree of reinforcement does not decrease. In other words, when the stacking boss is provided over the entire width of the rib 4, the rib 4 is cut off, and the degree of reinforcement is reduced.
【００１４】一方、スタッキングボス５…５は蓋１の裏
側において凸部となるが、本実施形態ではスタッキング
ボス５…５の間隔を等間隔とせず、他の蓋１の対応する
スタッキングボス５の位置と偏位させている。つまり、
蓋１ごとにスタッキングボス５の位置を僅かにずらして
形成している。このため、蓋１を重ねた場合にはスタッ
キングボス５により蓋同士が密着せず、その取り外しが
容易となる。On the other hand, although the stacking bosses 5 are convex on the back side of the lid 1, in this embodiment, the intervals of the stacking bosses 5 are not equal, and Position and deviated. That is,
The position of the stacking boss 5 is slightly shifted for each lid 1. Therefore, when the lids 1 are stacked, the lids do not come into close contact with each other due to the stacking bosses 5, and the lids are easily removed.
【００１５】ただし、上下の蓋１で同じ箇所にスタッキ
ングボス５を形成した場合であっても、蓋１を僅かに回
転させながら積み重ねれば、上下でスタッキングボス５
が嵌合することがなく、やはり蓋同士の密着を防止する
ことができる。However, even when the stacking bosses 5 are formed in the same place with the upper and lower lids 1, if the lids 1 are stacked while slightly rotating, the stacking bosses 5 are formed vertically.
Are not fitted to each other, so that the lids can be prevented from sticking to each other.
【００１６】また、本実施形態ではスタッキングボス５
の幅をリブ４の幅の約半分とし、常にスタッキングボス
５が本体Ｋの上縁Ｋ１と当接するようにしたので、蓋１
と本体Ｋとを組み合わせた状態で圧縮荷重がかかったと
しても、蓋１に本体Ｋの上縁が嵌合されることはない。In this embodiment, the stacking boss 5 is used.
Is about half the width of the rib 4 and the stacking boss 5 is always in contact with the upper edge K1 of the main body K.
Even when a compressive load is applied in a state where the main body K and the main body K are combined, the upper edge of the main body K is not fitted to the lid 1.
【００１７】一方、スタッキングボス５の高さ（凹成の
深さ）は、シャーレの使用目的によって適宜調整され
る。即ち、高さを低くすれば、スタッキングボス５が本
体Ｋの上縁Ｋ１と当接せず、本体Ｋの胴部は抜き勾配を
有することもあって、その上縁Ｋ１が蓋１の周壁３の内
側と接触して本体への通気性が絶たれる。しかし、培養
する細菌等が繁殖のため通気性を必要とする場合には、
スタッキングボス５の高さを高くすることによって、本
体Ｋの上縁Ｋ１との隙間を大きくすることができ、その
分、通気性を確保することができる。On the other hand, the height (depth of the recess) of the stacking boss 5 is appropriately adjusted according to the purpose of use of the petri dish. That is, if the height is reduced, the stacking boss 5 does not contact the upper edge K1 of the main body K, and the body of the main body K may have a draft angle. The air permeability to the body is cut off by contacting the inside of the body. However, when the bacteria to be cultured require air permeability for propagation,
By increasing the height of the stacking boss 5, a gap between the stacking boss 5 and the upper edge K1 of the main body K can be increased, and air permeability can be ensured accordingly.
【００１８】なお、本発明の素材は、リサイクルが可能
であること、焼却処分時に有害物質を出さないことから
ＰＥＴ（ポリエチレンテレフタレート）が好適である
が、これに限定されるものではなく、真空成型が可能な
プラスチック素材であれば従来公知のものを採用するこ
とができる。The material of the present invention is preferably PET (polyethylene terephthalate) because it is recyclable and does not emit harmful substances at the time of incineration. Any conventionally known plastic material can be used as long as it is possible.
【００１９】[0019]
【発明の効果】以上説明したように、本発明によればリ
ブにより蓋が補強されるため、圧縮荷重による変形を防
止することができた。また、リブにスタッキングボスを
凹成したので、蓋を積み重ねた場合であっても蓋同士が
密着することがない。また、本体と組み合わせた場合で
あっても、スタッキングボスが本体上縁と当接するた
め、両者の密な嵌合を防止することができると共に、本
体への通気性を確保することができる。さらに、蓋の天
板はリブを壁とする凹陥となっているので、例えば本体
・蓋・本体…というように積み重ねた場合であっても、
当該凹陥部に本体の底が合致するため、保管時や搬送時
に本体のズレが生じない。さらにまた、本体と蓋とを別
々に積み重ねることによって、その高さを抑制し、保管
時の省スペース化や包装材料の削減化を図ることができ
る。なお、リブを設けた従来の本体と組み合わせること
よって、圧縮荷重による変形をより確実に防止できるこ
とはもちろんである。As described above, according to the present invention, since the lid is reinforced by the rib, the deformation due to the compressive load can be prevented. Further, since the stacking boss is formed in the rib, the lids do not adhere to each other even when the lids are stacked. Further, even when combined with the main body, since the stacking boss abuts on the upper edge of the main body, it is possible to prevent the two from being tightly fitted and to ensure the air permeability to the main body. Furthermore, since the top plate of the lid is a recess with a rib as a wall, even if the lid is stacked, for example,
Since the bottom of the main body matches the concave portion, the main body does not shift during storage or transport. Furthermore, by separately stacking the main body and the lid, the height can be suppressed, and space saving during storage and reduction of packaging material can be achieved. It is needless to say that the deformation due to the compressive load can be more reliably prevented by combining with the conventional body provided with the ribs.
【００２０】この他、本発明のシャーレは、プラスチッ
クシートの成型品であることから、軽量で荷扱いが容易
となり、またガラスのような破損が生じにくく、歩留ま
りを高くすることができる。さらに、プラスチック成型
品であることにより、いわゆる容器包装リサイクル法に
も合致して、包装資材の減量化を図ることができる。In addition, since the petri dish of the present invention is a molded product of a plastic sheet, it is light in weight and can be easily handled in a load, hardly breaks like glass, and can increase the yield. Furthermore, since it is a plastic molded product, the amount of packaging materials can be reduced in accordance with the so-called Containers and Packaging Recycling Law.
【図１】第一実施形態の蓋を示した斜視図FIG. 1 is a perspective view showing a lid according to a first embodiment.
【図２】同蓋と本体との組み合わせを示した一部断面の
側面図FIG. 2 is a side view of a partial cross section showing a combination of the lid and a main body.
１ 蓋 ２ 天板 ３ 周壁 ４ リブ ４ａ リブの環状連続部 ５ スタッキングボス DESCRIPTION OF SYMBOLS 1 Lid 2 Top plate 3 Peripheral wall 4 Rib 4a Rib annular continuous part 5 Stacking boss
Claims (1)
レの蓋において、円形の天板に周壁を形成すると共に、
前記天板を凹陥して当該天板と同心で一定幅を有する環
状のリブを形成してなり、さらにリブにその幅の外側一
部を凹成してなるスタッキングボスを複数設けてなるこ
とを特徴とするシャーレの蓋。In a petri dish lid made of a thin plastic sheet, a peripheral wall is formed on a circular top plate,
The top plate is recessed to form an annular rib having a certain width concentric with the top plate, and the rib is provided with a plurality of stacking bosses formed by recessing an outer part of the width. Characteristic Petri dish lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29084899A JP2001112464A (en) | 1999-10-13 | 1999-10-13 | Lid for petri dish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29084899A JP2001112464A (en) | 1999-10-13 | 1999-10-13 | Lid for petri dish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001112464A true JP2001112464A (en) | 2001-04-24 |
Family
ID=17761275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29084899A Pending JP2001112464A (en) | 1999-10-13 | 1999-10-13 | Lid for petri dish |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001112464A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100751738B1 (en) * | 2000-03-30 | 2007-08-27 | 램 리써치 코포레이션 | In situ and ex situ etching process for sit with oxide collar application |
| JP2011211990A (en) * | 2010-04-01 | 2011-10-27 | Dainippon Printing Co Ltd | Petri dish for culture medium preparation |
| US20160002583A1 (en) * | 2013-02-26 | 2016-01-07 | Ddnt Consultants Australia Pty Ltd | Structure for culturing cells |
| JP2017221144A (en) * | 2016-06-15 | 2017-12-21 | 株式会社アテクト | Plastic petri dish |
| US11680236B2 (en) | 2017-11-30 | 2023-06-20 | Corning Incorporated | Thin, uniform, stackable petri dish |
-
1999
- 1999-10-13 JP JP29084899A patent/JP2001112464A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100751738B1 (en) * | 2000-03-30 | 2007-08-27 | 램 리써치 코포레이션 | In situ and ex situ etching process for sit with oxide collar application |
| JP2011211990A (en) * | 2010-04-01 | 2011-10-27 | Dainippon Printing Co Ltd | Petri dish for culture medium preparation |
| US20160002583A1 (en) * | 2013-02-26 | 2016-01-07 | Ddnt Consultants Australia Pty Ltd | Structure for culturing cells |
| US9944892B2 (en) * | 2013-02-26 | 2018-04-17 | Ddnt Consultants Australia Pty Ltd | Structure for culturing cells |
| JP2017221144A (en) * | 2016-06-15 | 2017-12-21 | 株式会社アテクト | Plastic petri dish |
| US11680236B2 (en) | 2017-11-30 | 2023-06-20 | Corning Incorporated | Thin, uniform, stackable petri dish |
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