JP6170539B2 - Test tube cap - Google Patents
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- JP6170539B2 JP6170539B2 JP2015221017A JP2015221017A JP6170539B2 JP 6170539 B2 JP6170539 B2 JP 6170539B2 JP 2015221017 A JP2015221017 A JP 2015221017A JP 2015221017 A JP2015221017 A JP 2015221017A JP 6170539 B2 JP6170539 B2 JP 6170539B2
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- 238000007789 sealing Methods 0.000 claims description 119
- 230000002093 peripheral effect Effects 0.000 claims description 44
- 230000005489 elastic deformation Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Description
本発明は、試験管の頂部の開口を密閉する試験管用キャップに係り、特に管径の違う複数の種類の試験管に対して適用し得る試験管用キャップに関するものである。 The present invention relates to a test tube cap that seals the top opening of a test tube, and more particularly to a test tube cap that can be applied to a plurality of types of test tubes having different tube diameters.
試験管は一般にガラス若しくは樹脂製でその頂部には、試験管内に収容する内容物の出し入れに使用する平面視円形状の開口が形成されている。 The test tube is generally made of glass or resin, and an opening having a circular shape in a plan view used for taking in and out the contents accommodated in the test tube is formed at the top.
また、内容物を入れた試験管を一時的に保管する場合や使用しない試験管を次の使用に備えて保管するような場合には、試験管内に収容した内容物の不用意な流出や試験管内へのゴミや塵等の異物の進入を防止するために下記の特許文献１に示すような試験管用キャップが使用されて、前記試験管の頂部の開口を密閉するようにしている。 In addition, when the test tube containing the contents is temporarily stored or when the unused test tube is stored for the next use, the contents stored in the test tube may be inadvertently spilled or tested. In order to prevent foreign matters such as dust and dust from entering the tube, a test tube cap as shown in Patent Document 1 below is used to seal the opening at the top of the test tube.
しかし、上記特許文献１に示す如く、従来の試験管用キャップは一種類の管径の試験管のみにしか適用することができなかったため、管径の違う複数の種類の試験管に適用するためには、試験管用キャップも口径の違う複数の種類を用意しなければならなかった。 However, as shown in Patent Document 1 above, the conventional test tube cap can only be applied to a test tube of one type of diameter, so that it can be applied to a plurality of types of test tubes having different tube diameters. Had to prepare several types of test tube caps with different calibers.
この場合、試験管用キャップの微妙な口径の違いは一見して分かり難いため、試験管用キャップの誤装着等を起こし易く、取り扱いが極めて煩雑になる。また、口径の違う試験管用キャップを種類ごとに分けて保管しておくことも面倒である。そして、このような手間によって試験管用キャップの製造コストや管理コストも増大してしまう。 In this case, since the subtle difference in the diameter of the test tube cap is difficult to understand at a glance, erroneous mounting of the test tube cap is likely to occur, and handling becomes extremely complicated. It is also troublesome to store test tube caps with different diameters separately for each type. In addition, such a trouble also increases the manufacturing cost and management cost of the test tube cap.
従って、本発明は従来の試験管用キャップが抱えているこのような問題点を解決すべく、管径の違う複数の種類の試験管に対して、一種類の試験管用キャップで対応できるようにし、取り扱いが容易で保管がし易く、製造コストや管理コストを低減し得る試験管用キャップを提供することを目的とする。 Therefore, in order to solve such problems of the conventional test tube cap, the present invention enables a single type of test tube cap to handle a plurality of types of test tubes having different tube diameters. An object of the present invention is to provide a test tube cap that is easy to handle and easy to store, and that can reduce manufacturing costs and management costs.
本発明の試験管用キャップ（１）は、試験管（６）の頂部（７）の開口（Ｈ）を密閉する試験管用キャップにおいて、
上面を密閉する天板部（２）と、
前記天板部（２）の外周縁から下方に向かって延びる外側筒状部（３）と、
前記外側筒状部（３）の内方の前記天板部（２）の下面から下方に向かって延びる内側筒状部（４）と、
前記外側筒状部（３）及び内側筒状部（４）間において前記天板部（２）の下面から下方に突出する弾性変形可能なリング形凸状封止部（５）と、を備え、
前記内側筒状部（４）とリング形凸状封止部（５）との間に、小径試験管（６Ａ）の頂部（７Ａ）が圧入的に挿入される第１リング形状凹部（８Ａ）が形成され、
且つ前記外側筒状部（３）とリング形凸状封止部（５）との間に、前記小径試験管（６Ａ）よりも大径の試験管（６Ｂ）の頂部（７Ｂ）が圧入的に挿入される第２リング形状凹部（８Ｂ）が形成される。
望ましくは、前記リング形凸状封止部（５）は、前記内側筒状部（４）の更に内方にも一又は複数の第３リング形凸状封止部（５Ｃ）として設けられている。
The test tube cap (1) of the present invention is a test tube cap that seals the opening (H) of the top (7) of the test tube (6).
A top plate (2) for sealing the upper surface;
An outer cylindrical portion (3) extending downward from the outer peripheral edge of the top plate portion (2);
An inner cylindrical portion (4) extending downward from the lower surface of the top plate portion (2) on the inner side of the outer cylindrical portion (3);
An elastically deformable ring-shaped convex sealing portion (5) protruding downward from the lower surface of the top plate portion (2) between the outer cylindrical portion (3) and the inner cylindrical portion (4). ,
A first ring-shaped recess (8A) into which the top (7A) of the small diameter test tube (6A) is press-fitted between the inner cylindrical portion (4) and the ring-shaped convex sealing portion (5). Formed,
In addition, the top (7B) of the test tube (6B) having a larger diameter than the small-diameter test tube (6A) is press-fitted between the outer tubular portion (3) and the ring-shaped convex sealing portion (5). A second ring-shaped recess (8B) to be inserted into is formed.
Preferably, the ring-shaped convex sealing portion (5) is provided as one or a plurality of third ring-shaped convex sealing portions (5C) further inward of the inner cylindrical portion (4). Yes.
また望ましくは、前記内側筒状部（４）とその内方の前記第３リング形凸状封止部（５Ｃ）との間に、前記小径試験管（６Ａ）よりも更に小径の試験管（６Ｃ）の頂部（７Ｃ）が圧入的に挿入される。
また望ましくは、前記リング形凸状封止部（５）の外周面と内周面の少なくとも一方には、挿入する試験管（６）の頂部（７）の移動を案内する案内部（５ａ、５ｂ）が形成されている。
また望ましくは、前記リング形凸状封止部（５）の断面形状は、前記天板部（２）の下面に底辺を位置させ、頂部（１０）を該底辺より下方に位置させた略三角形断面の形状である。
また望ましくは、前記リング形凸状封止部（５）の断面形状は、前記天板部（２）の下面から下方に向けて軸部（１１）を形成し、該軸部（１１）の下端に略円形断面の頂部（１０）を形成している。
また望ましくは、前記リング形凸状封止部（５）の断面形状は、前記天板部（２）の下面から下方に向けて軸部（２１）を形成し、該軸部（２１）の下端に略楕円形断面の頂部（２１）を形成している。
また望ましくは、前記外側筒状部（３）と、内側筒状部（４）と、リング形凸状封止部（５）は、同心円状に設けられている。
また望ましくは、前記リング形凸状封止部（５）には、自らの弾性変形を容易にする弾性促進構造（１３）が設けられている。
また望ましくは、前記リング形凸状封止部（５）は前記天板部（２）と一体成形されている。
また望ましくは、前記リング形凸状封止部（５）は前記天板部（２）とは別に成形されたものを該天板部（２）に固着形成する。
Desirably, a test tube having a smaller diameter than the small-diameter test tube (6A) between the inner cylindrical portion (4) and the third ring-shaped convex sealing portion (5C) on the inner side (4). The top (7C) of 6C) is inserted press-fit.
Preferably, at least one of the outer peripheral surface and the inner peripheral surface of the ring-shaped convex sealing portion (5) is a guide portion (5a, for guiding the movement of the top portion (7) of the test tube (6) to be inserted. 5b) is formed.
Desirably, the cross-sectional shape of the ring-shaped convex sealing portion (5) is a substantially triangular shape in which the bottom is located on the lower surface of the top plate (2) and the top (10) is located below the bottom. The cross-sectional shape.
Preferably, the ring-shaped convex sealing portion (5) has a cross-sectional shape in which a shaft portion (11) is formed downward from the lower surface of the top plate portion (2), and the shaft portion (11) A top portion (10) having a substantially circular cross section is formed at the lower end.
Desirably, the ring-shaped convex sealing portion (5) has a cross-sectional shape that forms a shaft portion (21) downward from the lower surface of the top plate portion (2), and the shaft portion (21) A top portion (21) having a substantially elliptical cross section is formed at the lower end.
Desirably, the outer cylindrical portion (3), the inner cylindrical portion (4), and the ring-shaped convex sealing portion (5) are provided concentrically.
Desirably, the ring-shaped convex sealing portion (5) is provided with an elastic promotion structure (13) that facilitates its own elastic deformation.
Desirably, the ring-shaped convex sealing portion (5) is integrally formed with the top plate portion (2).
Desirably, the ring-shaped convex sealing portion (5) is formed separately from the top plate portion (2) and fixed to the top plate portion (2).
本発明の試験管用キャップ（１）によれば次に示す効果がある。
（１）先ず、外側筒状部（３）又は内側筒状部（４）の近傍の天板部（２）の下面から下方に突出するように張り出す弾性変形可能なリング形凸状封止部（５）を備え、外側筒状部（３）及びリング形凸状封止部（５）との間と、内側筒状部（４）及びリング形凸状封止部（５）との間に、試験管（６）の頂部（７）を保持する２つのリング形状凹部（８）を形成したから、これら２つのリング形状凹部（８）に嵌合する管径の異なる２種類の試験管（６）の頂部（７）の開口（Ｈ）を単一の試験管用キャップ（１）によって密閉することが可能になる。これにより、取り扱いが容易で保管がし易く、製造コストや管理コストを低減し得る試験管用キャップ（１）を提供することが可能になる。
The test tube cap (1) of the present invention has the following effects.
(1) First, an elastically deformable ring-shaped convex seal projecting so as to protrude downward from the lower surface of the top plate portion (2) in the vicinity of the outer cylindrical portion (3) or the inner cylindrical portion (4). A portion (5), between the outer cylindrical portion (3) and the ring-shaped convex sealing portion (5), and between the inner cylindrical portion (4) and the ring-shaped convex sealing portion (5). Since two ring-shaped recesses (8) that hold the top (7) of the test tube (6) are formed between them, two types of tests with different tube diameters that fit into these two ring-shaped recesses (8) are formed. The opening (H) at the top (7) of the tube (6) can be sealed by a single test tube cap (1). This makes it possible to provide a test tube cap (1) that is easy to handle and easy to store, and that can reduce manufacturing costs and management costs.
即ち、リング形凸状封止部（５）を外側筒状部（３）と内側筒状部（４）との間に設けた場合には、単一のリング形凸状封止部（５）を使用して、内側筒状部（４）との間にできる第１リング形状凹部（８Ａ）を利用して小径試験管（６Ａ）を保持及び封止でき、外側筒状部（３）との間にできる第２リング形状凹部（８Ｂ）を利用して大径試験管（６Ｂ）を保持及び封止することが可能になる。 That is, when the ring-shaped convex sealing portion (5) is provided between the outer cylindrical portion (3) and the inner cylindrical portion (4), a single ring-shaped convex sealing portion (5 ) Can be used to hold and seal the small-diameter test tube (6A) using the first ring-shaped recess (8A) formed between the inner cylindrical portion (4) and the outer cylindrical portion (3). The large-diameter test tube (6B) can be held and sealed using the second ring-shaped recess (8B) formed between the two.
また、第２のリング形凸状封止部（５）を外側筒状部（３）と内側筒状部（４）との間に加えて、内側筒状部（４）の更に内方に一又は複数のリング形凸状封止部（５Ｃ）設けることにより、前記小径試験管（６Ａ）及び大径試験管（６Ｂ）を保持及び封止可能に加えて、前記最内側のリング形凸状封止部（５Ｃ）と内側筒状部（４）との間にできる一又は複数の第３リング形状凹部（８Ｃ）を利用して前記小径試験管（６Ａ）よりも更に小径の試験管（６Ｃ）を保持及び封止することが可能になる。従って、本態様によれば管径の異なる３種類以上の試験管（６）の頂部（７）の開口（Ｈ）を単一の試験管用キャップ（１）によって密閉することが可能になる。
（２）また、リング形凸状封止部（５）の外周面と内周面の少なくとも一方に、案内部（５ａ、５ｂ）を形成した場合には、試験管（６）の頂部（７）に試験管用キャップ（１）のリング形凸状封止部（５）を挿入する作業、及び試験管の取付け封止状態の維持が円滑且つ確実に実行されるようになる。
Further, a second ring-shaped convex sealing portion (5) is added between the outer cylindrical portion (3) and the inner cylindrical portion (4), and further inside the inner cylindrical portion (4). By providing one or a plurality of ring-shaped convex sealing portions (5C), in addition to holding and sealing the small-diameter test tube (6A) and large-diameter test tube (6B), the innermost ring-shaped convex portion The test tube having a smaller diameter than the small-diameter test tube (6A) using one or a plurality of third ring-shaped recesses (8C) formed between the cylindrical sealing portion (5C) and the inner cylindrical portion (4) (6C) can be held and sealed. Therefore, according to this aspect, it becomes possible to seal the opening (H) of the top part (7) of three or more types of test tubes (6) having different tube diameters by the single test tube cap (1).
(2) When the guide portions (5a, 5b) are formed on at least one of the outer peripheral surface and the inner peripheral surface of the ring-shaped convex sealing portion (5), the top portion (7) of the test tube (6) ) To insert the ring-shaped convex sealing portion (5) of the test tube cap (1) and to maintain the test tube mounting and sealing state smoothly and reliably.
また、リング形凸状封止部（５）の断面形状を、略三角形断面の形状にした場合には、リング形凸状封止部（５）の外周面と内周面の全体を傾斜状案内部（５ａ、５ｂ）として利用することが可能になるから、管径の異なる複数の種類の試験管（６）を円滑にリング形状凹部（８）に挿入して確実に保持及び封止することが可能になる。 Moreover, when the cross-sectional shape of the ring-shaped convex sealing portion (5) is a substantially triangular cross-sectional shape, the entire outer peripheral surface and inner peripheral surface of the ring-shaped convex sealing portion (5) are inclined. Since it can be used as the guide portions (5a, 5b), a plurality of types of test tubes (6) having different tube diameters can be smoothly inserted into the ring-shaped recess (8) and securely held and sealed. It becomes possible.
また、リング形凸状封止部（５）の断面形状を、軸部（１１）と円形断面の頂部（１０）を有する形状にした場合には、幅寸法の小さな軸部（１１）において弾性変形作用が主に行われ、幅寸法の大きな円形断面頂部（１０）において試験管（６）の頂部（７）の保持及び封止作用が一層強固且つ確実に行われるようになる。
（３）また、外側筒状部（３）と、内側筒状部（４）と、リング形凸状封止部（５）を同心円状に設けた場合には、管径の異なる複数の種類の試験管（６）を、隙間なく確実に本発明の試験管用キャップ（１）によって確実に保持及び封止することが可能になる。
In addition, when the cross-sectional shape of the ring-shaped convex sealing portion (5) is a shape having a shaft portion (11) and a top portion (10) having a circular cross section, the shaft portion (11) having a small width dimension is elastic. The deformation action is mainly performed, and the holding and sealing action of the top (7) of the test tube (6) is more firmly and reliably performed at the top (10) of the circular cross section having a large width dimension.
(3) When the outer cylindrical portion (3), the inner cylindrical portion (4), and the ring-shaped convex sealing portion (5) are provided concentrically, a plurality of types having different tube diameters are provided. The test tube (6) can be reliably held and sealed by the test tube cap (1) of the present invention without gaps.
また、リング形凸状封止部（５）に対して、弾性促進構造（１３）を設けた場合には、リング形凸状封止部（５）の弾性変形がより円滑に大きな変形量で実行されるようになるから、試験管（６）の頂部（７）における開口（Ｈ）の密閉作業を容易且つ確実に実行できるようにし、試験管（６）の頂部（７）における寸法のばら付きにも広く対応できるようになる。 In addition, when the elastic promotion structure (13) is provided for the ring-shaped convex sealing portion (5), the elastic deformation of the ring-shaped convex sealing portion (5) is more smoothly performed with a large amount of deformation. Since it is to be carried out, the sealing operation of the opening (H) at the top (7) of the test tube (6) can be carried out easily and reliably and the dimensional variation at the top (7) of the test tube (6). It will be able to handle a wide range.
最初に、図１乃至図３に基づいて本発明の第１の実施形態に係る試験管用キャップ１Ａの全体構成と要部の構成について説明し、次に、図４乃至図６に基づいて該試験管用キャップ１Ａを管径の違う２種類の試験管６Ａ、６Ｂに装着する場合の装着手順と、該装着時の試験管用キャップ１Ａの作用について説明する。
［第１の実施形態］
（１）試験管用キャップの全体構成と要部の構成（図１乃至図３参照）
試験管６（図４、５及び６参照）は一般にガラス製で底部１４が中空の半球形状に形成されて密閉されている縦に長い円管状の部材である。また、試験管６の頂部７には、試験管６内に収容する内容物の出し入れに使用する平面視円形状の開口Ｈが形成されており、該開口Ｈが形成された試験管６の頂部７の内周縁と外周縁は、エッジのない滑らかな曲面形状に形成されている。
First, the overall configuration and the configuration of the main part of the test tube cap 1A according to the first embodiment of the present invention will be described based on FIGS. 1 to 3, and then the test will be described based on FIGS. A mounting procedure when the tube cap 1A is mounted on two types of test tubes 6A and 6B having different tube diameters and the operation of the test tube cap 1A at the mounting will be described.
[First Embodiment]
(1) Overall configuration of test tube cap and configuration of essential parts (see FIGS. 1 to 3)
The test tube 6 (see FIGS. 4, 5 and 6) is a vertically long circular tubular member which is generally made of glass and has a bottom 14 formed in a hollow hemispherical shape and sealed. The top 7 of the test tube 6 is formed with an opening H having a circular shape in plan view, which is used for taking in and out the contents accommodated in the test tube 6, and the top of the test tube 6 in which the opening H is formed. The inner periphery and the outer periphery of 7 are formed in a smooth curved surface shape without edges.
そして、内容物を入れた試験管６を一時的に保管する場合や使用しない試験管６を次の使用に備えて保管するような場合に試験管６内に収容した内容物の不用意な流出や試験管６内へのゴミや塵等の異物の進入を防止する目的で本発明の試験管用キャップ１が使用される。 When the test tube 6 containing the contents is temporarily stored or when the unused test tube 6 is stored for the next use, the contents stored in the test tube 6 are inadvertently discharged. In addition, the test tube cap 1 of the present invention is used for the purpose of preventing foreign matters such as dust and dust from entering the test tube 6.
具体的に本発明の試験管用キャップ１は、上面を密閉する天板部２と、該天板部２の外周縁から下方に向かって延びる外側筒状部３と、該外側筒状部３の内方の天板部２の下面から下方に向かって延びる内側筒状部４と、前記外側及び内側筒状部３及び４間の位置で天板部２の下面から下方に突出するように一体形成された弾性変形可能のリング形凸状封止部５（５Ａ）と、を備えることによって基本的に構成されている。 Specifically, the test tube cap 1 of the present invention includes a top plate portion 2 that seals the upper surface, an outer cylindrical portion 3 that extends downward from the outer peripheral edge of the top plate portion 2, and the outer cylindrical portion 3. The inner cylindrical portion 4 that extends downward from the lower surface of the inner top plate portion 2 and the inner cylindrical portion 4 so as to protrude downward from the lower surface of the top plate portion 2 at a position between the outer and inner cylindrical portions 3 and 4. It is basically configured by including the elastically deformable ring-shaped convex sealing portion 5 (5A).
そして、本実施形態では試験管用キャップ１Ａは、柔軟に変形し得る樹脂製又はゴム製等の材料で形成されている。 In the present embodiment, the test tube cap 1A is made of a material such as resin or rubber that can be flexibly deformed.
また、このようにして構成される試験管用キャップ１Ａには、図3に示す如く、前記内側筒状部４とリング形凸状封止部５Ａとの間に、小径の第１リング形状凹部８Ａが形成され、また前記外側筒状部３とリング形凸状封止部５Ａとの間に、大径の第２リング形状凹部８Ｂが形成されている。 Further, as shown in FIG. 3, the test tube cap 1A constructed as described above has a first ring-shaped concave portion 8A having a small diameter between the inner cylindrical portion 4 and the ring-shaped convex sealing portion 5A. A large-diameter second ring-shaped concave portion 8B is formed between the outer cylindrical portion 3 and the ring-shaped convex sealing portion 5A.
そして、本実施形態では、天板部２は円板状に形成されており、該天板部２の外周縁に上方に向けて、突出するリング状突出部１５が形成されている。従って、天板部２の上面は、前記リング状突出部１５によって形成された凹部の底面に位置している。 And in this embodiment, the top-plate part 2 is formed in disk shape, and the ring-shaped protrusion part 15 which protrudes toward the upper direction at the outer periphery of this top-plate part 2 is formed. Therefore, the top surface of the top plate portion 2 is located on the bottom surface of the concave portion formed by the ring-shaped projecting portion 15.
外側筒状部３は、上端から下端にかけて徐々に径が大きくなるように幾分テーパ状に形成され、中間部の肉厚が幾分厚めに形成された略円筒状の部材で、その外周面３ａには、縦方向に延びるリブ１６が等間隔に複数形成されている。 The outer cylindrical portion 3 is a substantially cylindrical member which is formed in a somewhat tapered shape so that the diameter gradually increases from the upper end to the lower end, and the intermediate portion is formed with a slightly thicker wall. In 3a, a plurality of ribs 16 extending in the vertical direction are formed at equal intervals.
外側筒状部３の内周面３ｂの下端のコーナ部は、図示のように斜めに切除されており、大径試験管６Ｂの挿入を容易にするガイド面３ｃになっている。 The corner portion at the lower end of the inner peripheral surface 3b of the outer cylindrical portion 3 is cut off obliquely as shown in the figure, forming a guide surface 3c that facilitates insertion of the large-diameter test tube 6B.
内側筒状部４は、上端から下端にかけて徐々に径が大きくなるように幾分テーパ状に形成され、中間部の肉厚が幾分厚めに形成された略円筒状の部材である。また、内側筒状部４の外周面４ａの下端のコーナ部は、図示のように斜めに切除されており、小径試験管６Ａの挿入を容易にするガイド面４ｃになっている。 The inner cylindrical portion 4 is a substantially cylindrical member that is formed in a somewhat tapered shape so that the diameter gradually increases from the upper end to the lower end, and the intermediate portion is formed with a slightly thicker wall. Further, the corner portion at the lower end of the outer peripheral surface 4a of the inner cylindrical portion 4 is cut obliquely as shown in the figure, and serves as a guide surface 4c that facilitates insertion of the small-diameter test tube 6A.
また、リング形凸状封止部５Ａは、図３に示す如く、断面形状が天板部２の下面に底辺を位置させ、頂部１０を該底辺より下方に位置させた略三角形断面のリング状部材によって構成されている。 Further, as shown in FIG. 3, the ring-shaped convex sealing portion 5A has a ring shape having a substantially triangular cross section in which the cross-sectional shape is located on the bottom surface of the top plate portion 2 and the top portion 10 is located below the bottom side. It is comprised by the member.
そして、本実施形態では、前記外側筒状部と、内側筒状部４及びリング形凸状封止部５Ａが同心円状に設けられており、これに伴い、前記第１リング形状凹部８Ａと第２リング形状凹部８Ｂも同心円状に設けられている。
（２）試験管用キャップの装着手順と作用（図４乃至図６参照）
このようにして構成される試験管用キャップ１Ａを小径試験管６Ａに対して装着する場合には、図４に示す如く、小径試験管６Ａの頂部７Ａに対して上方から試験管用キャップ１Ａを被せるようにして装着する。
In this embodiment, the outer cylindrical portion, the inner cylindrical portion 4 and the ring-shaped convex sealing portion 5A are provided concentrically, and accordingly, the first ring-shaped concave portion 8A and the first cylindrical concave portion 8A Two ring-shaped recesses 8B are also provided concentrically.
(2) Test tube cap installation procedure and action (see FIGS. 4 to 6)
When the test tube cap 1A constructed as described above is attached to the small-diameter test tube 6A, as shown in FIG. 4, the test tube cap 1A is placed on the top 7A of the small-diameter test tube 6A from above. And put on.
この場合、小径試験管６Ａの頂部７Ａの内周縁が最初に内側筒状部４のガイド面４ｂに当接し、該ガイド面４ｂに案内されて、第１リング形状凹部８Ａに向かって相対的移動を開始する。 In this case, the inner peripheral edge of the top portion 7A of the small-diameter test tube 6A first comes into contact with the guide surface 4b of the inner cylindrical portion 4 and is guided by the guide surface 4b to move relatively toward the first ring-shaped recess 8A. To start.
次に、小径試験管６Ａの頂部７Ａの外周縁がリング形凸状封止部５Ａの傾斜状内側案内部５ｂに当接し、該案内部５ｂに案内されて、小径第１リング形状凹部８Ａに導かれる。 Next, the outer peripheral edge of the top portion 7A of the small-diameter test tube 6A abuts on the inclined inner guide portion 5b of the ring-shaped convex sealing portion 5A, and is guided by the guide portion 5b to the small-diameter first ring-shaped concave portion 8A. Led.
そして、小径試験管６Ａの頂部７Ａが第１リング形状凹部８Ａに圧入的に挿入された図４に示す状態では、小径試験管６Ａの頂部７Ａの外周面７ａはリング形凸状封止部５Ａの傾斜状内側案内部５ｂに当接して、その下端の頂部１０が幾分、外方に弾性的に湾曲変形した状態になる。一方、小径試験管６Ａの頂部７Ａの内周面７ｂは、内側筒状部４の外周面４ａに当接されることによって、小径試験管６Ａの頂部７Ａが、リング形凸状封止部５Ａ及び内側筒状部４間で挟持された状態になる。かくして、小径試験管６Ａの頂部７Ａの開口Ｈが密閉された状態で密閉される図４及び図６（ａ）に示すような試験管用キャップ１Ａによる装着状態が形成される。 In the state shown in FIG. 4 in which the top portion 7A of the small-diameter test tube 6A is press-fitted into the first ring-shaped recess 8A, the outer peripheral surface 7a of the top portion 7A of the small-diameter test tube 6A is the ring-shaped convex sealing portion 5A. The top 10 at the lower end thereof is somewhat elastically curved and deformed outwardly. On the other hand, the inner peripheral surface 7b of the top portion 7A of the small diameter test tube 6A is brought into contact with the outer peripheral surface 4a of the inner cylindrical portion 4, so that the top portion 7A of the small diameter test tube 6A becomes the ring-shaped convex sealing portion 5A. And it will be in the state clamped between the inner cylindrical parts 4. FIG. Thus, a mounting state is formed by the test tube cap 1A as shown in FIGS. 4 and 6A in which the opening H of the top portion 7A of the small diameter test tube 6A is sealed.
次に、当該試験管用キャップ１Ａを大径試験管６Ｂに対して装着する場合には、図５に示す如く、大径試験管６Ｂの頂部７Ｂに対して上方から試験管用キャップ１Ａを被せるようにして装着する。 Next, when the test tube cap 1A is attached to the large-diameter test tube 6B, the test tube cap 1A is placed on the top 7B of the large-diameter test tube 6B from above as shown in FIG. Install.
この場合、大径試験管６Ｂの頂部７Ｂの外周縁が最初に外側筒状部３のガイド面３ｃに当接し、該ガイド面３ｃに案内されて、大径第２リング形状凹部８Ｂに向かって相対移動を開始する。次に、大径試験管６Ｂの頂部７Ｂの内周縁がリング形凸状封止部５Ａの傾斜状外側案内部５ａに当接し、該外側案内部５ａに案内されて、大径第２リング形状凹部８Ｂに導かれる。 In this case, the outer peripheral edge of the top portion 7B of the large-diameter test tube 6B first comes into contact with the guide surface 3c of the outer tubular portion 3, and is guided by the guide surface 3c toward the large-diameter second ring-shaped recess 8B. Start relative movement. Next, the inner peripheral edge of the top portion 7B of the large-diameter test tube 6B abuts on the inclined outer guide portion 5a of the ring-shaped convex sealing portion 5A and is guided by the outer guide portion 5a, so that the large-diameter second ring shape is formed. Guided to the recess 8B.
そして、大径試験管６Ｂの頂部７Ｂが大径第２リング形状凹部８Ｂに圧入的に挿入された図５に示す状態では、大径試験管６Ｂの頂部７Ｂの内周面７ｂはリング形凸状封止部５Ａの傾斜状外側案内部５ａに当接して、該案内部５ａの下端頂部１０が幾分内方に弾性的に湾曲変形した状態になる。一方、大径試験管６Ｂの頂部７Ｂの外周面７ａは外側筒状部３の内周面３ｂに当接され、これによって大径試験管６Ｂの頂部７Ｂは、リング形凸状封止部５Ａ及び外側筒状部３間で挟持された状態になる。かくして、大径試験管６Ｂの頂部７Ｂの開口Ｈが密閉された状態で密閉される図５及び図６（ｂ）に示す試験管用キャップ１Ａによる装着状態が形成される。 In the state shown in FIG. 5 in which the top portion 7B of the large diameter test tube 6B is press-fitted into the large diameter second ring-shaped recess portion 8B, the inner peripheral surface 7b of the top portion 7B of the large diameter test tube 6B has a ring-shaped convex shape. The lower end top portion 10 of the guide portion 5a is elastically curved and deformed somewhat inward by contacting the inclined outer guide portion 5a of the sealing portion 5A. On the other hand, the outer peripheral surface 7a of the top portion 7B of the large-diameter test tube 6B is in contact with the inner peripheral surface 3b of the outer cylindrical portion 3, whereby the top portion 7B of the large-diameter test tube 6B is ring-shaped convex sealing portion 5A. And it will be in the state clamped between the outer side cylindrical parts 3. FIG. Thus, a mounting state is formed by the test tube cap 1A shown in FIGS. 5 and 6B in which the opening H of the top portion 7B of the large diameter test tube 6B is sealed.
そして、このように構成される本実施形態による試験管用キャップ１Ａによれば、管径の違う２種類の試験管６Ａ、６Ｂに対して、一種類の試験管用キャップ１Ａを使用して、それぞれの開口Ｈを密閉することが可能になる。これに伴い、取り扱いが容易で保管がし易い試験管用キャップ１Ａが提供できるようになり、製造コストと管理コストの削減が図れるようになる。
［第２の実施形態］（図７乃至図９参照）
第２の実施形態に係る試験管用キャップ１Ｂは、前記第１の実施形態に係るキャップ１Ａの断面略三角形状のリング形凸状封止部５Ａに比して、断面形状が異なるリング形凸状封止部５Ｂを設けたものであり、その他の構成は前記第１の実施形態と同様であり、前記第１の実施形態と同様の構成については説明を省略する。
According to the test tube cap 1A according to the present embodiment configured as described above, one type of test tube cap 1A is used for two types of test tubes 6A and 6B having different tube diameters. The opening H can be sealed. Accordingly, the test tube cap 1A that is easy to handle and easy to store can be provided, and the manufacturing cost and the management cost can be reduced.
[Second Embodiment] (See FIGS. 7 to 9)
The test tube cap 1B according to the second embodiment has a ring-shaped convex shape having a different cross-sectional shape as compared with the ring-shaped convex sealing portion 5A having a substantially triangular cross section of the cap 1A according to the first embodiment. The sealing portion 5B is provided, and the other configuration is the same as that of the first embodiment, and the description of the same configuration as that of the first embodiment is omitted.
即ち、本実施形態では、リング形凸状封止部５Ｂの断面形状が、前記天板部２の下面から下方に向けて略矩形断面の軸部１１を形成し、該軸部１１の下端に略円形断面の頂部１０を形成した形状に構成されている。そして本実施形態では、前記円形断面頂部１０の下半分の円弧が外側円弧状案内部５ａと内側円弧状案内部５ｂとを形成する。 That is, in the present embodiment, the cross-sectional shape of the ring-shaped convex sealing portion 5B forms a shaft portion 11 having a substantially rectangular cross section downward from the lower surface of the top plate portion 2, and is formed at the lower end of the shaft portion 11. It is comprised in the shape which formed the top part 10 of the substantially circular cross section. In the present embodiment, the lower half arc of the circular cross-section top 10 forms an outer arcuate guide portion 5a and an inner arcuate guide portion 5b.
また、このような円形断面形状のリング形凸状封止部５Ｂを備えた場合には、図８に示す如く、小径試験管６Ａを小径第１リング形状凹部８Ａに圧入的に挿入した状態では、リング形凸状封止部５Ｂの断面円形頂部１０が幾分外方へ弾性的に偏倚した状態になり、当該小径試験管６Ａの頂部７Ａの外周面７ａは、前記リング形凸状封止部５Ｂの断面円形頂部１０の内側円弧状案内部５ｂの最大外径部に当接して保持及び封止、即ち密閉された状態になる。 In addition, when the ring-shaped convex sealing portion 5B having such a circular cross section is provided, in a state where the small diameter test tube 6A is press-fitted into the small diameter first ring shape concave portion 8A as shown in FIG. The circular top 10 of the ring-shaped convex sealing portion 5B is elastically biased somewhat outward, and the outer peripheral surface 7a of the top 7A of the small-diameter test tube 6A is the ring-shaped convex sealing. The portion 5B is brought into contact with the maximum outer diameter portion of the inner arcuate guide portion 5b of the circular cross-sectional top portion 10 and is held and sealed, that is, sealed.
一方、小径試験管６Ａの頂部７Ａの内周面７ｂは、内側筒状部４の外周面４ａに当接して保持及び封止された状態になる。これによって小径試験管６Ａの頂部７Ａは、リング形凸状封止部５Ｂと内側筒状部４によって挟持された状態になり、小径試験管６Ａの頂部７Ａの開口Ｈが密閉された図８に示す試験管用キャップ１Ｂによる装着状態が形成される。 On the other hand, the inner peripheral surface 7b of the top portion 7A of the small diameter test tube 6A is in contact with the outer peripheral surface 4a of the inner cylindrical portion 4 and is held and sealed. As a result, the top 7A of the small diameter test tube 6A is sandwiched between the ring-shaped convex sealing portion 5B and the inner cylindrical portion 4, and the opening H of the top 7A of the small diameter test tube 6A is sealed in FIG. The mounting state by the shown test tube cap 1B is formed.
また、図９に示す如く、大径試験管６Ｂを第２リング形状凹部８Ｂに圧入的に挿入した状態では、リング形凸状封止部５Ｂの断面円形頂部１０が幾分内方へ弾性的に偏倚された状態になり、当該大径試験管６Ｂの頂部７Ｂの内周面７ｂは、前記断面円形頂部１０の外側円弧状案内部５ａの最大外径部に当接して保持及び封止、即ち密閉された状態になる。 Further, as shown in FIG. 9, when the large-diameter test tube 6B is press-fitted into the second ring-shaped concave portion 8B, the circular top 10 of the ring-shaped convex sealing portion 5B is somewhat elastic inward. The inner peripheral surface 7b of the top portion 7B of the large-diameter test tube 6B is in contact with the maximum outer diameter portion of the outer arcuate guide portion 5a of the circular cross-sectional top portion 10 and is held and sealed. That is, it is in a sealed state.
一方、大径試験管６Ｂの頂部７Ｂの外周面７ａは外側筒状部３の内周面３ｂに当接して保持された状態になる。これによって大径試験管６Ｂの頂部７Ｂは、リング形凸状封止部５Ｂ及び外側筒状部３間で挟持された状態になり、大径試験管６Ｂの頂部７Ｂの開口Ｈが密閉された図９に示す試験管用キャップ１Ｂによる装着状態が形成される。 On the other hand, the outer peripheral surface 7a of the top portion 7B of the large-diameter test tube 6B is in contact with and held by the inner peripheral surface 3b of the outer cylindrical portion 3. As a result, the top portion 7B of the large diameter test tube 6B is sandwiched between the ring-shaped convex sealing portion 5B and the outer cylindrical portion 3, and the opening H of the top portion 7B of the large diameter test tube 6B is sealed. The mounting state by the test tube cap 1B shown in FIG. 9 is formed.
そして、このようにして構成される本実施形態による試験管用キャップ１Ｂによっても、前述した第１の実施形態による試験管用キャップ１Ａと同様の作用、効果が発揮される。
［第３の実施形態］（図１０参照）
第３の実施形態に係る試験管用キャップ１Ｃは、管径の違う３種類の試験管６Ａ、６Ｂ、６Ｃに対して装着することが可能な構成を有する試験管用キャップである。
The test tube cap 1B according to the present embodiment configured as described above also exhibits the same operations and effects as the test tube cap 1A according to the first embodiment described above.
[Third Embodiment] (See FIG. 10)
A test tube cap 1C according to the third embodiment is a test tube cap having a configuration that can be attached to three types of test tubes 6A, 6B, and 6C having different tube diameters.
具体的には、前記外側筒状部３と内側筒状部４との間に設けられる第１リング形凸状封止部５Ａ（図３に示すものと同一）と、前記内側筒状部４の内方に設けられる第２リング形凸状封止部５Ｃと、の２種類のリング形凸状封止部５（５Ａ、５Ｃ）が設けられている点で前記第１の実施形態に係る試験管用キャップ１Ａと相違しており、その他の構成については、前記第１の実施形態と同様の構成を有している。 Specifically, a first ring-shaped convex sealing portion 5A (same as shown in FIG. 3) provided between the outer cylindrical portion 3 and the inner cylindrical portion 4, and the inner cylindrical portion 4 According to the first embodiment in that two types of ring-shaped convex sealing portions 5 (5A, 5C) are provided. It is different from the test tube cap 1A, and the other configurations are the same as those in the first embodiment.
従って、ここでは前記第１の実施形態と同様の構成については説明を省略し、前記第１の実施形態と相違する２種類のリング形凸状封止部５Ａ、５Ｃの構成とその作用に絞って説明する。 Therefore, the description of the same configuration as in the first embodiment is omitted here, and the configuration and operation of the two types of ring-shaped convex sealing portions 5A and 5C that are different from the first embodiment are focused on. I will explain.
即ち、本実施形態では、前述した位置に２種類のリング形凸状封止部５Ａ、５Ｃが同心円状に配置されており、これにより内側筒状部４とその外方に位置する第１リング形凸状封止部５Ａとの間に、小径試験管６Ａの頂部７Ａが圧入的に挿入される（この場合）中径の第１リング形状凹部８Ａが形成されている。 That is, in this embodiment, two types of ring-shaped convex sealing portions 5A and 5C are concentrically arranged at the above-described positions, whereby the inner cylindrical portion 4 and the first ring located on the outer side thereof. A first ring-shaped concave portion 8A having a medium diameter is formed between the convex-shaped sealing portion 5A and the top portion 7A of the small-diameter test tube 6A is press-fitted (in this case).
また、外側筒状部３とその内方に位置する第１リング形凸状封止部５Ａとの間に、大径試験管６Ｂの頂部７Ｂが圧入的に挿入される大径第２リング形状凹部８Ｂが形成されており、更に、内側筒状部４とその内方に位置する第２リング形凸状封止部５Ｃとの間に、最小径試験管６Ｃの頂部７Ｃが圧入的に挿入される小径第３リング形状凹部８Ｃが形成されている。 Also, a large-diameter second ring shape in which the top portion 7B of the large-diameter test tube 6B is press-fitted between the outer cylindrical portion 3 and the first ring-shaped convex sealing portion 5A located inside thereof. A concave portion 8B is formed, and the top portion 7C of the minimum diameter test tube 6C is press-fitted between the inner cylindrical portion 4 and the second ring-shaped convex sealing portion 5C located inside thereof. A small-diameter third ring-shaped recess 8C is formed.
この他、内側筒状部４の外周面４ａ及び内周面４ｂの各下端部に外側及び内側ガイド面４ｃ、４ｃが形成されており、前述した第２リング形凸状封止部５Ｃには、傾斜状外側案内部５ａが形成されている。 In addition, outer and inner guide surfaces 4c and 4c are formed at the lower end portions of the outer peripheral surface 4a and the inner peripheral surface 4b of the inner cylindrical portion 4, and the second ring-shaped convex sealing portion 5C described above has An inclined outer guide portion 5a is formed.
そして、このような構成の試験管用キャップ１Ｃを中径試験管６Ａと大径試験管６Ｂに装着する場合の装着手順と作用は前記第１の実施形態と同様であり、更に本実施形態にあっては、以下の手順で更に小径の試験管６Ｃに対しても試験管用キャップ１Ｃを装着し得るように構成されている。 The mounting procedure and operation for mounting the test tube cap 1C having such a configuration on the medium diameter test tube 6A and the large diameter test tube 6B are the same as those in the first embodiment, and further in this embodiment. Thus, the test tube cap 1C can be attached to the test tube 6C having a smaller diameter by the following procedure.
具体的には、最小径試験管６Ｃの頂部７Ｃに対して試験管用キャップ１Ｃを装着する場合には、上方から試験管用キャップ１Ｃを被せるようにして装着する。この場合、更に最小径試験管６Ｃの頂部７Ｃの外周縁が最初に内側筒状部４の内周面４ｂ側下端に形成されているガイド面４ｃに当接案内されて、小径第３リング形状凹部８Ｃに向かって相対的移動を開始し、更に最小径試験管６Ｃの頂部７Ｃの内周縁が小径リング形凸状封止部５Ｃの傾斜状外側案内部５ａに当接して弾性変形させながら、小径第３リング形状凹部８Ｃに導かれて、封止的に保持される。 Specifically, when the test tube cap 1C is mounted on the top portion 7C of the minimum diameter test tube 6C, the test tube cap 1C is mounted from above. In this case, the outer peripheral edge of the top portion 7C of the minimum diameter test tube 6C is first brought into contact with and guided by the guide surface 4c formed at the lower end on the inner peripheral surface 4b side of the inner cylindrical portion 4, so that the small diameter third ring shape is formed. While starting relative movement toward the recess 8C, the inner peripheral edge of the top portion 7C of the minimum diameter test tube 6C abuts against the inclined outer guide portion 5a of the small diameter ring-shaped convex sealing portion 5C, and elastically deforms, It is guided to the small-diameter third ring-shaped recess 8C and held in a sealing manner.
また、このようにして構成される本実施形態による試験管用キャップ１Ｃによっても、前述した第１の実施形態に係る試験管用キャップ１Ａと同様の作用、効果を発揮することができ、更に本実施形態の場合には、管径の違う３種類の試験管６Ａ、６Ｂ、６Ｃに対して、一種類の試験管用キャップ１Ｃを使用して、それぞれの開口Ｈを密閉することが可能になるから、試験管用キャップ１Ｃの適用範囲を広げることが可能になる。 Also, the test tube cap 1C according to this embodiment configured as described above can exhibit the same operations and effects as the test tube cap 1A according to the first embodiment described above, and further this embodiment. In this case, it is possible to seal each opening H by using one type of test tube cap 1C for three types of test tubes 6A, 6B and 6C having different tube diameters. The application range of the pipe cap 1C can be expanded.
なお、図１０の実施例において、最内側の小径リング形凸状封止部５Ｃは一つに限らず、同心状に複数も受けても良く、その場合は、隣り合う小径リング形凸状封止部５Ｃどうしの間に形成されたリング形状凹部に試験管の頂部を圧入するようにしてもよい。
［第４の実施形態］（図１１参照）
第４の実施形態に係る試験管用キャップ１Ｄは、リング形凸状封止部５に弾性促進構造１３を設けることによって、自らの弾性変形を容易にするように構成された試験管用キャップである。
In the embodiment shown in FIG. 10, the innermost small-diameter ring-shaped convex sealing portion 5C is not limited to one, and a plurality of concentric rings may be received. You may make it press-fit the top part of a test tube in the ring-shaped recessed part formed between the stop parts 5C.
[Fourth Embodiment] (see FIG. 11)
A test tube cap 1D according to the fourth embodiment is a test tube cap configured to facilitate its own elastic deformation by providing an elastic promotion structure 13 in the ring-shaped convex sealing portion 5.
従って、その他の構成については前記第１の実施形態に係る試験管用キャップ１Ａと同様であるので、ここでの説明は省略し、前記第１の実施形態と相違する弾性促進構造１３の構成とその作用に絞って説明する。 Accordingly, since the other configuration is the same as that of the test tube cap 1A according to the first embodiment, the description thereof will be omitted, and the configuration of the elastic promotion structure 13 different from the first embodiment and its configuration will be omitted. The explanation will focus on the action.
即ち、本実施形態ではリング形凸状封止部５に対して自らの弾性変形を容易にする弾性促進構造１３が設けられている。弾性促進構造１３としては、例えば図１１（ａ）（ｂ）に示す如く、リング形凸状封止部５に対してスリット１７、１８を設けた構成やリング形凸状封止部５を中空にした構成、或いはリング形凸状封止部５の全部又は一部を弾性変形が容易な別材料で構成する等の態様が採用可能である。 That is, in this embodiment, the elastic promotion structure 13 that facilitates its own elastic deformation is provided for the ring-shaped convex sealing portion 5. As the elastic promotion structure 13, for example, as shown in FIGS. 11 (a) and 11 (b), the ring-shaped convex sealing portion 5 is provided with slits 17 and 18, and the ring-shaped convex sealing portion 5 is hollow. It is possible to adopt a configuration in which the entire structure or a part of the ring-shaped convex sealing portion 5 is made of another material that can be easily elastically deformed.
このうち、図１１（ａ）では、リング形凸状封止部５の付け根部分の天板部２の下面から所定深さのスリット１７を入れてリング形凸状封止部５の変形可能領域を拡大するようにした態様の試験管用キャップ１Ｄが開示されている。一方、図１１（ｂ）では、リング形凸状封止部５の傾斜状内側案内部５ｂから所定深さのスリット１８を放射状に等間隔に複数個（図示の実施形態では４個）入れてリング形凸状封止部５の円周方向の部分毎の変形を容易にするようにした態様の試験管用キャップ１Ｄが開示されている。 Among these, in FIG. 11A, a deformable region of the ring-shaped convex sealing portion 5 by inserting a slit 17 having a predetermined depth from the bottom surface of the top plate portion 2 at the base portion of the ring-shaped convex sealing portion 5. A test tube cap 1 </ b> D having a configuration in which is enlarged is disclosed. On the other hand, in FIG. 11B, a plurality of slits 18 (four in the illustrated embodiment) having a predetermined depth are radially inserted from the inclined inner guide portion 5b of the ring-shaped convex sealing portion 5 at equal intervals. A test tube cap 1 </ b> D is disclosed that facilitates deformation of each portion of the ring-shaped convex sealing portion 5 in the circumferential direction.
そして、このようにして構成される本実施形態に係る試験管用キャップ１Ｄによっても、前述した第１の実施形態に係る試験管用キャップ１Ａと同様の作用、効果を発揮することができ、更に本実施形態の場合には、試験管６に寸法精度や形状に微妙なばら付きがあった場合でも隙間なく該試験管６の頂部７の開口Ｈを密閉し得るようになる。
［第５の実施形態］（図１２参照）
第５の実施形態に係る試験管用キャップ１Ｅは、リング形凸状封止部５の断面形状を変えた、その他の態様の試験管用キャップを示している。従って、リング形凸状封止部５以外の構成は前述した第１の実施形態に係る試験管用キャップ１Ａ乃至第２の実施形態に係る試験管用キャップ１Ｂと同様であるのでここでの説明は省略し、前記実施形態１及び実施形態２と相違するリング形凸状封止部５の断面形状に絞って説明する。
The test tube cap 1D according to the present embodiment configured as described above can exhibit the same operations and effects as the test tube cap 1A according to the first embodiment described above. In the case of the form, even when the test tube 6 has a slight variation in dimensional accuracy and shape, the opening H of the top portion 7 of the test tube 6 can be sealed without a gap.
[Fifth Embodiment] (see FIG. 12)
A test tube cap 1E according to the fifth embodiment is a test tube cap of another mode in which the cross-sectional shape of the ring-shaped convex sealing portion 5 is changed. Therefore, since the configuration other than the ring-shaped convex sealing portion 5 is the same as the test tube cap 1A according to the first embodiment or the test tube cap 1B according to the second embodiment, description thereof is omitted here. The description will focus on the cross-sectional shape of the ring-shaped convex sealing portion 5 that is different from the first and second embodiments.
即ち、リング形凸状封止部５の断面形状は、図１２（ａ）に示す如く、逆台形断面形状の案内部５ａ１、５ｂ１を有するリング形凸状封止部５Ｅとしたり、図１２（ｂ）に示す如く、下端のコーナ部を面取りした略矩形断面形状の案内部５ａ２、５ｂ２を有するリング形凸状封止部５Ｆとしたり、図１２（ｃ）に示す如く、上辺から下辺にかけて徐々に幅が小さくなる逆台形状の軸部１１の下端に略半球状の頂部１０を設けた、きのこ状断面形状の案内部５ａ３、５ｂ３を有するリング形凸状封止部５Ｇとすることが可能である。 That is, the cross-sectional shape of the ring-shaped convex sealing portion 5 is a ring-shaped convex sealing portion 5E having guide portions 5a1 and 5b1 having inverted trapezoidal cross-sectional shapes as shown in FIG. As shown in FIG. 12B, a ring-shaped convex sealing portion 5F having guide portions 5a2 and 5b2 having a substantially rectangular cross-sectional shape with a chamfered corner portion at the lower end, or gradually from the upper side to the lower side as shown in FIG. It is possible to provide a ring-shaped convex sealing portion 5G having guide portions 5a3 and 5b3 having a mushroom-like cross-sectional shape, in which a substantially hemispherical top portion 10 is provided at the lower end of the inverted trapezoidal shaft portion 11 having a smaller width. It is.
また、図１２（ｄ）に示す如く、矩形状の軸部１１の下端に略菱形状をした頂部１０の断面形状案内部５ａ４、５ｂ４を有するリング形凸状封止部５Ｈとしたり、図１２（ｅ）に示す如く、直角三角形の断面形状の案内部５ａ５、５ｂ５を有するリング形凸状封止部５ｉを同心円状に２個並設した構成のリング形凸状封止部５Ｉとすることも可能である。 Further, as shown in FIG. 12 (d), a ring-shaped convex sealing portion 5H having cross-sectional shape guide portions 5a4 and 5b4 of the top portion 10 having a substantially rhombus shape at the lower end of the rectangular shaft portion 11 is formed. As shown in (e), a ring-shaped convex sealing portion 5I having a configuration in which two ring-shaped convex sealing portions 5i having right-angled triangular cross-section guide portions 5a5 and 5b5 are arranged concentrically in parallel. Is also possible.
そして、このようにして構成される本実施形態に係る試験管用キャップ１Ｅによっても、前述した第１の実施形態に係る試験管用キャップ１Ａ或いは前述した第２の実施形態に係る試験管用キャップ１Ｂと同様の作用、効果を発揮することができる。
［第６の実施形態］（図１３参照）
第６の実施形態に係る試験管用キャップ１Ｆは、リング形凸状封止部５の断面形状を変えた、リング形凸状封止部５Ｊを有する他の態様の試験管用キャップ１Ｆを示している。
The test tube cap 1E according to the present embodiment configured as described above is similar to the test tube cap 1A according to the first embodiment described above or the test tube cap 1B according to the second embodiment described above. The effects and effects of the
[Sixth Embodiment] (see FIG. 13)
A test tube cap 1F according to the sixth embodiment is a test tube cap 1F of another aspect having a ring-shaped convex sealing portion 5J in which the cross-sectional shape of the ring-shaped convex sealing portion 5 is changed. .
このリング形凸状封止部５Ｊは、一見して、図７に示すリング形凸状封止部５Ｂに似ているが、図７のリング形凸状封止部５Ｂの頂部１０が略円形断面であったのに比して、このリング形凸状封止部５Ｊは、軸部２２、外側案内部５ａ６及び内側案内部５ｂ６、及び頂部２１を有し、該頂部２１の断面形状が上下方向長細の略楕円形である。かかる楕円形断面のリング形凸状封止部５Ｊを適用する試験管としては、一方では、図１３（ａ）に示す如く、小径試験管６Ｄの上端部外周面に大径の周方向凸部６Ｄ１（この凸部６Ｄ１は全周に連続していてもまたは飛び飛びに配置されていても良い）を有する該小径試験管６Ｄであり、他方では、図１３（ｂ）に示す如く、大径小径試験管６Ｅの上端部内周面に周方向凹部６Ｅ１（この凹部６Ｅ１は全周に連続していてもまたは飛び飛びに配置されていても良い）を有する該大径試験管６Ｅである。
まず、図１３（ａ）中、楕円形断面のリング形凸状封止部５Ｊを小径試験管６Ｄに取付けるには、試験管６Ｄの上部がキャップ１Ｆの小径第１リング形状凹部８Ａに対して相対的に下方から挿入されるとき、楕円形頂部２１の内側案内部５ｂ６が試験管６Ｄの大径周方向凸部６Ｄ１に乗り上げて一旦弾性的に外方へ変位した後に該大径周方向凸部６Ｄ１を乗り越えた時点で弾性復帰して小径試験管６Ｄの外周面に圧接して小径試験管６Ｄを封止密閉する。従って、上記圧接を有効にするために、自然状態におけるリング形凸状封止部５Ｊの内側案内部５ｂ６の差し渡し内径寸法は小径試験管６Ｄの外形寸法よりも僅かに小さい。
次に、図１３（ｂ）中、このリング形凸状封止部５Ｊを大径試験管６Ｅに取付けるには、試験管６Ｅの上部がキャップ１Ｆの大径第２リング形状凹部８Ｂに対して相対的に下方から挿入されるとき、楕円形頂部２１の外側案内部５ａ６が試験管６Ｅの周方向凹部６Ｅ１に弾性的に内方へ変位しつつ乗り上げて該周方向凹部６Ｅ１より下方へ移動した位置で試験管６Ｅの内周面に圧接して大径試験管６Ｅを封止密閉する。従って、上記圧接を有効にするために、自然状態におけるリング形凸状封止部５Ｊの外側案内部５ａ６の差し渡し外径寸法は大径試験管６Ｅの内径寸法よりも僅かに大きい。
At first glance, this ring-shaped convex sealing portion 5J resembles the ring-shaped convex sealing portion 5B shown in FIG. 7, but the top 10 of the ring-shaped convex sealing portion 5B in FIG. 7 is substantially circular. Compared to the cross section, this ring-shaped convex sealing part 5J has a shaft part 22, an outer guide part 5a6, an inner guide part 5b6, and a top part 21, and the cross-sectional shape of the top part 21 is vertical. It is a substantially elliptical shape with a long direction. As a test tube to which the ring-shaped convex sealing portion 5J having such an elliptical cross section is applied, on the one hand, as shown in FIG. 13 (a), a large-diameter circumferential convex portion is formed on the outer peripheral surface of the upper end portion of the small-diameter test tube 6D. The small diameter test tube 6D having 6D1 (this convex portion 6D1 may be continuous or distantly disposed on the entire circumference), on the other hand, as shown in FIG. The large-diameter test tube 6E has a circumferential recess 6E1 (this recess 6E1 may be continuous over the entire circumference or arranged in a jump) on the inner peripheral surface of the upper end portion of the test tube 6E.
First, in FIG. 13A, in order to attach the ring-shaped convex sealing portion 5J having an elliptical cross section to the small-diameter test tube 6D, the upper portion of the test tube 6D is opposed to the small-diameter first ring-shaped concave portion 8A of the cap 1F. When inserted from the lower side, the inner guide portion 5b6 of the elliptical top portion 21 rides on the large-diameter circumferential convex portion 6D1 of the test tube 6D and is elastically displaced outward once. When it gets over the part 6D1, it elastically recovers and presses against the outer peripheral surface of the small diameter test tube 6D to seal and seal the small diameter test tube 6D. Therefore, in order to make the press contact effective, the inner diameter of the inner guide portion 5b6 of the ring-shaped convex sealing portion 5J in the natural state is slightly smaller than the outer size of the small-diameter test tube 6D.
Next, in FIG. 13B, in order to attach the ring-shaped convex sealing portion 5J to the large-diameter test tube 6E, the upper portion of the test tube 6E is against the large-diameter second ring-shaped concave portion 8B of the cap 1F. When inserted from the lower side, the outer guide portion 5a6 of the elliptical top portion 21 rides on the circumferential recess 6E1 of the test tube 6E while being elastically displaced inward and moves downward from the circumferential recess 6E1. The large-diameter test tube 6E is hermetically sealed by pressing against the inner peripheral surface of the test tube 6E at the position. Therefore, in order to make the pressure contact effective, the outer diameter of the outer guide portion 5a6 of the ring-shaped convex sealing portion 5J in the natural state is slightly larger than the inner diameter of the large diameter test tube 6E.
これによれば、リング形凸状封止部５Ｊの頂部２１の断面形状が略楕円形であるため、試験管の上端外周の凸部、又は上端内周の凹部を有する異なる径の試験管に対しても上記凸部及び凹部を弾性的に変形しつつ通過し易いので、適用範囲が広くなる。
［他の実施形態］
以上が本発明の試験管用キャップ１の基本的な実施形態であるが、本発明の試験管用キャップ１は、前述した実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内での部分的構成の変更や省略、或いは当業者において、周知、慣用の技術を追加することが可能である。
According to this, since the cross-sectional shape of the top portion 21 of the ring-shaped convex sealing portion 5J is substantially elliptical, the test tube with a different diameter having a convex portion on the upper outer periphery of the test tube or a concave portion on the inner periphery of the upper end. On the other hand, since it easily passes through the convex portion and the concave portion while being elastically deformed, the application range is widened.
[Other Embodiments]
The above is the basic embodiment of the test tube cap 1 of the present invention. However, the test tube cap 1 of the present invention is not limited to the above-described embodiment, and does not depart from the gist of the present invention. It is possible to change or omit the partial configuration of the above, or add a well-known and conventional technique to those skilled in the art.
例えば、外側筒状部３と内側筒状部４を別部材によって構成し、外側筒状部３と内側筒状部４の何れか一方又は双方を付け替えることによって、更に多くの種類の試験管６に対して適用できるように構成することも可能である。 For example, by forming the outer cylindrical portion 3 and the inner cylindrical portion 4 as separate members and changing either one or both of the outer cylindrical portion 3 and the inner cylindrical portion 4, more types of test tubes 6 can be used. It is also possible to configure so as to be applicable to the above.
また、場合によっては、リング形凸状封止部５もキャップ１とは別体に製造したものをキャップ１に接着固定するようにしてもよい。 In some cases, the ring-shaped convex sealing portion 5 manufactured separately from the cap 1 may be bonded and fixed to the cap 1.
１（１Ａ〜１Ｆ） 試験管用キャップ
２ 天板部
３ 外側筒状部
３ａ、４ａ 外周面
３ｂ、４ｂ 内周面
３ｃ、４ｃ ガイド面
４ 内側筒状部
５（５Ａ〜５Ｊ） リング形凸状封止部
５ａ（５ａ１〜５ａ６） 外側案内部
５ｂ（５ｂ１〜５ｂ６） 内側案内部
６（６Ａ〜６Ｅ） 試験管
６Ｄ１ 試験管外周凸部
６Ｅ１ 試験管内周凹部
７（７Ａ〜７Ｃ） 試験管頂部
７ａ 試験管外周面
７ｂ 試験管内周面
８ リング形状凹部
１０、２１ 封止部の頂部
１１、２２ 封止部の軸部
１３ 弾性促進構造
１４ 試験管底部
１５ リング状突出部
１６ リブ
１７ スリット
１８ スリット
Ｈ 開口
1 (1A-1F) Test tube cap 2 Top plate part 3 Outer cylindrical part 3a, 4a Outer peripheral surface 3b, 4b Inner peripheral surface 3c, 4c Guide surface 4 Inner cylindrical part 5 (5A-5J) Ring-shaped convex seal Stop part 5a (5a1 to 5a6) Outer guide part 5b (5b1 to 5b6) Inner guide part 6 (6A to 6E) Test tube 6D1 Test tube outer periphery convex part 6E1 Test tube inner peripheral recess part 7 (7A to 7C) Test tube top part 7a Test Tube outer peripheral surface 7b Test tube inner peripheral surface 8 Ring-shaped concave portion 10, 21 Top portion of sealing portion 11, 22 Shaft portion of sealing portion 13 Elasticity promoting structure 14 Test tube bottom portion 15 Ring-shaped protruding portion 16 Rib 17 Slit 18 Slit H Opening
Claims (9)
上面を密閉する天板部（２）と、
前記天板部（２）の外周縁から下方に向かって延びる外側筒状部（３）と、
前記外側筒状部（３）の内方の前記天板部（２）の下面から下方に向かって延びる内側筒状部（４）と、
前記外側筒状部（３）及び内側筒状部（４）間において前記天板部（２）の下面から下方に突出する弾性変形可能なリング形凸状封止部（５）と、を備え、
前記内側筒状部（４）とリング形凸状封止部（５）との間に、小径試験管（６Ａ）の頂部（７Ａ）が圧入的に挿入される第１リング形状凹部（８Ａ）が形成され、
且つ前記外側筒状部（３）とリング形凸状封止部（５）との間に、前記小径試験管（６Ａ）よりも大径の試験管（６Ｂ）の頂部（７Ｂ）が圧入的に挿入される第２リング形状凹部（８Ｂ）が形成され、
前記リング形凸状封止部（５）の断面形状は、前記天板部（２）の下面から下方に向けて軸部（１１）を形成し、該軸部（１１）の下端に略円形断面の頂部（１０）を形成している、ことを特徴とする試験管用キャップ。 In a test tube cap that seals the opening (H) of the top (7) of the test tube (6),
A top plate (2) for sealing the upper surface;
An outer cylindrical portion (3) extending downward from the outer peripheral edge of the top plate portion (2);
An inner cylindrical portion (4) extending downward from the lower surface of the top plate portion (2) on the inner side of the outer cylindrical portion (3);
An elastically deformable ring-shaped convex sealing portion (5) protruding downward from the lower surface of the top plate portion (2) between the outer cylindrical portion (3) and the inner cylindrical portion (4). ,
A first ring-shaped recess (8A) into which the top (7A) of the small diameter test tube (6A) is press-fitted between the inner cylindrical portion (4) and the ring-shaped convex sealing portion (5). Formed,
In addition, the top (7B) of the test tube (6B) having a larger diameter than the small-diameter test tube (6A) is press-fitted between the outer tubular portion (3) and the ring-shaped convex sealing portion (5). A second ring-shaped recess (8B) to be inserted into the
The ring-shaped convex sealing portion (5) has a cross-sectional shape in which a shaft portion (11) is formed downward from the lower surface of the top plate portion (2), and a substantially circular shape is formed at the lower end of the shaft portion (11). A cap for a test tube, characterized in that it forms the top (10) of the cross section .
上面を密閉する天板部（２）と、
前記天板部（２）の外周縁から下方に向かって延びる外側筒状部（３）と、
前記外側筒状部（３）の内方の前記天板部（２）の下面から下方に向かって延びる内側筒状部（４）と、
前記外側筒状部（３）及び内側筒状部（４）間において前記天板部（２）の下面から下方に突出する弾性変形可能なリング形凸状封止部（５）と、を備え、
前記内側筒状部（４）とリング形凸状封止部（５）との間に、小径試験管（６Ａ）の頂部（７Ａ）が圧入的に挿入される第１リング形状凹部（８Ａ）が形成され、
且つ前記外側筒状部（３）とリング形凸状封止部（５）との間に、前記小径試験管（６Ａ）よりも大径の試験管（６Ｂ）の頂部（７Ｂ）が圧入的に挿入される第２リング形状凹部（８Ｂ）が形成され、
前記リング形凸状封止部（５）の断面形状は、前記天板部（２）の下面から下方に向けて軸部（２１）を形成し、該軸部（２１）の下端に略楕円形断面の頂部（２１）を形成している、ことを特徴とする試験管用キャップ。 In a test tube cap that seals the opening (H) of the top (7) of the test tube (6),
A top plate (2) for sealing the upper surface;
An outer cylindrical portion (3) extending downward from the outer peripheral edge of the top plate portion (2);
An inner cylindrical portion (4) extending downward from the lower surface of the top plate portion (2) on the inner side of the outer cylindrical portion (3);
An elastically deformable ring-shaped convex sealing portion (5) protruding downward from the lower surface of the top plate portion (2) between the outer cylindrical portion (3) and the inner cylindrical portion (4). ,
A first ring-shaped recess (8A) into which the top (7A) of the small diameter test tube (6A) is press-fitted between the inner cylindrical portion (4) and the ring-shaped convex sealing portion (5). Formed,
In addition, the top (7B) of the test tube (6B) having a larger diameter than the small-diameter test tube (6A) is press-fitted between the outer tubular portion (3) and the ring-shaped convex sealing portion (5). A second ring-shaped recess (8B) to be inserted into the
The ring-shaped convex sealing part (5) has a cross-sectional shape in which a shaft part (21) is formed downward from the lower surface of the top plate part (2), and is substantially elliptical at the lower end of the shaft part (21). A cap for a test tube, characterized in that it forms the top (21) of the cross section .
前記リング形凸状封止部（５）は、前記内側筒状部（４）の内方にも一又は複数の第３リング形凸状封止部（５Ｃ）として設けられており、
前記内側筒状部（４）とその内方の前記第３リング形凸状封止部（５Ｃ）との間に、前記小径試験管（６Ａ）よりも更に小径の試験管（６Ｃ）の頂部（７Ｃ）が圧入的に挿入される、ことを特徴とする試験管用キャップ。 The test tube cap (1) according to claim 1 or 2 ,
The ring-shaped convex sealing part (5) is also provided as one or a plurality of third ring-shaped convex sealing parts (5C) on the inner side of the inner cylindrical part (4),
The top of the test tube (6C) having a smaller diameter than the small diameter test tube (6A) between the inner cylindrical portion (4) and the third ring-shaped convex sealing portion (5C) on the inner side thereof. A cap for a test tube, wherein (7C) is inserted by press-fitting.
前記リング形凸状封止部（５）の外周面と内周面の少なくとも一方には、挿入する試験管（６）の頂部（７）の移動を案内する案内部（５ａ、５ｂ）が形成されていることを特徴とする試験管用キャップ。 The test tube cap (1) according to any one of claims 1 to 3 ,
Guide portions (5a, 5b) for guiding the movement of the top portion (7) of the test tube (6) to be inserted are formed on at least one of the outer peripheral surface and the inner peripheral surface of the ring-shaped convex sealing portion (5). A cap for a test tube characterized by being made.
前記リング形凸状封止部（５）の断面形状は、前記天板部（２）の下面に底辺を位置させ、頂部（１０）を該底辺より下方に位置させた略三角形断面の形状である、ことを特徴とする試験管用キャップ。 The test tube cap (1) according to any one of claims 1 to 4 ,
The cross-sectional shape of the ring-shaped convex sealing part (5) is a substantially triangular cross-sectional shape in which the base is located on the lower surface of the top plate part (2) and the top (10) is located below the base. There is a test tube cap characterized by that.
前記外側筒状部（３）と、内側筒状部（４）と、リング形凸状封止部（５）は、同心円状に設けられている、ことを特徴とする試験管用キャップ。 The test tube cap (1) according to any one of claims 1 to 5 ,
The test tube cap characterized in that the outer cylindrical part (3), the inner cylindrical part (4), and the ring-shaped convex sealing part (5) are provided concentrically.
前記リング形凸状封止部（５）には、自らの弾性変形を容易にする弾性促進構造（１３）が設けられている、ことを特徴とする試験管用キャップ。 The test tube cap (1) according to any one of claims 1 to 6 ,
The test tube cap according to claim 1, wherein the ring-shaped convex sealing portion (5) is provided with an elastic promotion structure (13) that facilitates its own elastic deformation.
前記リング形凸状封止部（５）は前記天板部（２）と一体成形されている、ことを特徴とする試験管用キャップ。 The test tube cap (1) according to any one of claims 1 to 7 ,
A cap for a test tube, wherein the ring-shaped convex sealing portion (5) is integrally formed with the top plate portion (2).
前記リング形凸状封止部（５）は前記天板部（２）とは別に成形されたものを該天板部（２）に固着形成する、ことを特徴とする試験管用キャップ。 The test tube cap (1) according to any one of claims 1 to 7 ,
The ring-shaped convex sealing portion (5) is formed separately from the top plate portion (2), and is fixedly formed on the top plate portion (2).
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| JPH0546755U (en) * | 1991-11-25 | 1993-06-22 | サンテック株式会社 | Sealing lid for open can |
| JP2007116906A (en) * | 2005-10-25 | 2007-05-17 | Nanetsu Chemical Kk | Cap for test tube and test tube having the same mounted thereon |
| JP5047732B2 (en) * | 2007-08-24 | 2012-10-10 | 有 佐藤 | Screw cap |
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