JP2005313061A - Tube for centrifugal separation - Google Patents
Tube for centrifugal separation Download PDFInfo
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- JP2005313061A JP2005313061A JP2004132987A JP2004132987A JP2005313061A JP 2005313061 A JP2005313061 A JP 2005313061A JP 2004132987 A JP2004132987 A JP 2004132987A JP 2004132987 A JP2004132987 A JP 2004132987A JP 2005313061 A JP2005313061 A JP 2005313061A
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- tube
- centrifuge tube
- centrifugal separation
- crown
- cap
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Abstract
Description
本発明は、一般的な試験管と同形状のプラスチック製遠心分離用チューブに関するものである。 The present invention relates to a plastic centrifuge tube having the same shape as a general test tube.
遠心分離用チューブの材質は、ポリカーボネイト、ポリエチレン、ポリプロピレン、ステンレス等である。また、その形状は円筒部を有し一端が閉じており、他端は開口している一般的な試験管と同形状か、試料注入口部分が試料注入後溶着するために狭くなっているタイプのものがある。 The material of the centrifuge tube is polycarbonate, polyethylene, polypropylene, stainless steel or the like. In addition, the shape has a cylindrical part, one end is closed, and the other end is the same shape as a general test tube that is open, or the sample injection port part is narrow because it is welded after sample injection There are things.
その肉厚は、熱可塑性樹脂を材質とするチューブでは、ＵＳ３５５６８８４に開示されている、０．３８１〜０．６３５mm範囲内のものから０．７５ｍｍ程度のものが存在する。その閉塞手段としては、一般的な試験管と同形状の遠心分離用チューブに対しては実開昭５５−８００４３および実開昭６２−４８４５０に開示された遠心力回転体キャップや遠心分離機試験管密封用キャップに示されるように複数の部品より構成され、遠心力回転体の回転中に遠心分離用チューブからの液の流出を機械的構造によって防ぐ手段が用いられている。 As for the thickness of the tube made of thermoplastic resin, there are tubes in the range of 0.381 to 0.635 mm disclosed in US Pat. No. 3,556,884 to about 0.75 mm. As a capping means, a centrifugal rotating cap or a centrifuge test disclosed in Japanese Utility Model Laid-Open Nos. 55-80043 and 62-48450 is applied to a centrifuge tube having the same shape as a general test tube. As shown in the tube sealing cap, it is composed of a plurality of parts, and means for preventing the outflow of the liquid from the centrifuge tube during rotation of the centrifugal force rotating body by a mechanical structure is used.
上記従来の遠心分離用チューブの閉塞手段は、実開昭５５−８００４３に開示された遠心力回転体キャップに見られるように複数の部品により構成されることによる組立ての煩雑さを有する。また、実開昭６２−４８４５０に開示された遠心力回転体キャップでは、実開昭６６−８００４３に開示された遠心力回転体キャップと比較し、部品点数を減少させ、組立ての煩雑さを軽減させたものの、実開昭６２−４８４５０に開示された遠心力回転体キャップは該遠心分離用チューブの肉厚が該クラウン円穴径と該シールピースボス部外径の隙間より大きいものに限定される。 The conventional means for closing the centrifuge tube has a complicated assembly because it is composed of a plurality of parts as seen in the centrifugal rotating body cap disclosed in Japanese Utility Model Laid-Open No. 55-80043. In addition, the centrifugal force rotating body cap disclosed in Japanese Utility Model Publication No. 62-48450 reduces the number of parts and reduces the complexity of assembly compared to the centrifugal force rotating body cap disclosed in Japanese Utility Model Publication No. 66-80043. However, the centrifugal force rotating body cap disclosed in Japanese Utility Model Laid-Open No. 62-48450 is limited to the centrifugal tube whose wall thickness is larger than the clearance between the crown circular hole diameter and the seal piece boss outer diameter. The
本発明の目的は、遠心分離用チューブとその閉塞手段において、複数の部品により構成されたキャップの煩雑な組立てを行う必要がなく、プラスチック製チューブの肉厚が該クラウン円穴径と該シールピースボス部外径の隙間より大きいものに限定せずに、遠心分離用チューブを密封できるキャップを提供することである。 An object of the present invention is to eliminate the need for complicated assembly of a cap composed of a plurality of parts in a centrifuge tube and its clogging means, and the thickness of the plastic tube is equal to the diameter of the crown circular hole and the seal piece. The present invention is to provide a cap capable of sealing a centrifuge tube without being limited to a gap larger than the outer diameter of the boss portion.
本発明は前記目的を達成するため、プラスチック製遠心分離用チューブと円形開口部外周部を取り囲むように設けられた突抜け円穴を有するクラウンと、該プラスチック製遠心分離用チューブの円形開口部内周部に挿入される円柱状ボス部を有するシールピースから構成される遠心分離用チューブ密封用キャップにおいて、該クラウンの内側に弾性体を設けた。弾性体は、合成ゴムであることが好ましい。
実開昭６２−４８４５０に開示された遠心力回転体キャップの構造では、遠心分離用アングルロータに装着され回転される場合において、該クラウン円穴径と該シールピースボス部外径の隙間が該遠心分離用チューブ肉厚より大きい場合は、該遠心分離用チューブの遠心力方向への変形により該シールピースボス部外径と該遠心分離用チューブの間に隙間が生じ液漏れが発生する。
しかし、本発明による遠心分離用チューブ密封用キャップでは、該遠心分離用チューブの遠心力方向への変形を該クラウン内側の弾性体によって防止できるので、液瀬れは発生しない。
To achieve the above object, the present invention provides a crown having a punch-through circular hole provided so as to surround a plastic centrifuge tube and a circular opening outer periphery, and a circular opening inner periphery of the plastic centrifuge tube. In the centrifuge tube sealing cap composed of a seal piece having a cylindrical boss portion inserted into the portion, an elastic body is provided inside the crown. The elastic body is preferably a synthetic rubber.
In the structure of the centrifugal force rotating body cap disclosed in Japanese Utility Model Laid-Open No. 62-48450, when the centrifugal rotor is mounted and rotated, the clearance between the crown circular hole diameter and the outer diameter of the seal piece boss part is the gap. When the thickness of the centrifuge tube is larger than that, the deformation of the centrifuge tube in the direction of the centrifugal force causes a gap between the outer diameter of the seal piece boss part and the centrifuge tube, thereby causing liquid leakage.
However, in the centrifuge tube sealing cap according to the present invention, the deformation of the centrifuge tube in the direction of the centrifugal force can be prevented by the elastic body inside the crown, so that liquid leakage does not occur.
本発明による遠心分離用チューブ密封用キャップは、複数の部品により構成されたキャップの煩雑な組立てを行う必要がなく、プラスチック製チューブの肉厚が該クラウン円穴径と該シールピースボス部外径の隙間より大きいものに限定せずに、遠心分離用チューブを密封できるキャップを提供することである。 The centrifuge tube sealing cap according to the present invention does not require complicated assembly of a cap composed of a plurality of parts, and the thickness of the plastic tube is such that the diameter of the crown circular hole and the outer diameter of the seal piece boss portion It is to provide a cap capable of sealing a centrifuge tube without being limited to a larger gap.
以下、本発明の実施例を説明するが、本発明は何らこの実施例により限定されるものではない。
本発明なる遠心分離用チューブ密封用キャップはプラスチック製遠心分離用チューブ１に装着される。クラウン２はその内側にゴムやプラスチックからなる弾性体３を有しプラスチック製遠心分離用チューブ１の外周部に嵌合する。
シールピース４は中央部にシールピースの挿入深さの位置決めの役割を成すストッパフランジ５と遠心分離用チューブ１に挿入されるボス部６とシールピース４着脱用フランジを有した形状になっている。
更に、ボス部６は遠心分離用チューブへの挿入を容易にするために先端部にテーパ部７、遠心分離用チューブへの挿入後の抜け止めの役割を成すくびれ部分８を有している。また、シールピース着脱フランジ９とストッパフランジ５の間には、ロータへの遠心分離用チューブ密封用キャップの着脱やシールピースの取り外しのためのくびれ部１０を有している。
Examples of the present invention will be described below, but the present invention is not limited to these examples.
The centrifuge tube sealing cap according to the present invention is attached to the plastic centrifuge tube 1. The
The seal piece 4 has a shape having a stopper flange 5 which plays a role of positioning the insertion depth of the seal piece, a boss portion 6 inserted into the centrifuge tube 1 and a flange for attaching / detaching the seal piece 4 at the center. .
Further, the boss portion 6 has a tapered portion 7 at the tip portion for facilitating insertion into the centrifuge tube, and a
１はプラスチック製遠心分離機用チューブ、２はクラウン、３は弾性体、４はシールピース、５はストッパフランジ、６はボス部、７はテーパ部、８はくびれ部分、９はシールピース着脱フランジ、１０はくびれ部
1 is a plastic centrifuge tube, 2 is a crown, 3 is an elastic body, 4 is a seal piece, 5 is a stopper flange, 6 is a boss portion, 7 is a tapered portion, 8 is a constricted portion, and 9 is a seal piece attaching / detaching
Claims (1)
A seal having a crown having a punch-through circular hole provided so as to surround the plastic centrifuge tube and the outer periphery of the circular opening, and a cylindrical boss inserted into the inner periphery of the circular opening of the centrifuge tube A centrifuge tube sealing cap comprising a piece, wherein the centrifuge tube is provided with an elastic body inside the crown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004132987A JP2005313061A (en) | 2004-04-28 | 2004-04-28 | Tube for centrifugal separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004132987A JP2005313061A (en) | 2004-04-28 | 2004-04-28 | Tube for centrifugal separation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2005313061A true JP2005313061A (en) | 2005-11-10 |
Family
ID=35441058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004132987A Withdrawn JP2005313061A (en) | 2004-04-28 | 2004-04-28 | Tube for centrifugal separation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2005313061A (en) |
-
2004
- 2004-04-28 JP JP2004132987A patent/JP2005313061A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20070703 |