JP6781418B2 - How to make a quartz vial - Google Patents

How to make a quartz vial Download PDF

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JP6781418B2
JP6781418B2 JP2020123758A JP2020123758A JP6781418B2 JP 6781418 B2 JP6781418 B2 JP 6781418B2 JP 2020123758 A JP2020123758 A JP 2020123758A JP 2020123758 A JP2020123758 A JP 2020123758A JP 6781418 B2 JP6781418 B2 JP 6781418B2
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quartz
neck
vial
glass material
quartz glass
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堅司 岩田
堅司 岩田
寿仁 柏木
寿仁 柏木
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NEXUS COMPANY INC.
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Description

本発明は、薬品等を収容するために用いられるバイアル瓶の製造方法に関する。 The present invention relates to a method for producing a vial used for containing a drug or the like.

バイアル瓶は、薬品等が収容される胴部と、前記胴部の下端を閉鎖する底部と、前記胴部の上方に設けられた円筒状の頸部と、前記頸部の上方に設けられ該頸部よりも外径が大きい円筒状の口部とを備えている。このようなバイアル瓶の素材としては、従来、ホウケイ酸ガラス等の硬質ガラスが用いられてきた（例えば、特許文献１を参照）。 The vial bottle is provided with a body portion containing chemicals and the like, a bottom portion that closes the lower end of the body portion, a cylindrical neck portion provided above the body portion, and a cylinder portion provided above the neck portion. It has a cylindrical mouth with a larger outer diameter than the neck. Conventionally, hard glass such as borosilicate glass has been used as a material for such a vial (see, for example, Patent Document 1).

こうしたバイアル瓶は、ワクチンや薬品等を収容した状態で、数ヶ月から数年という長期間保管されることがある。しかし、硬質ガラス製のバイアル瓶で薬品を長期間保存した場合、バイアル瓶の成分であるホウ素やナトリウム等が薬品に溶出する可能性があり、長期の保存に課題を残していた。 Such vials may be stored for a long period of several months to several years with vaccines, drugs, etc. stored in them. However, when a chemical is stored in a hard glass vial for a long period of time, boron, sodium, etc., which are components of the vial, may be eluted into the chemical, which leaves a problem in long-term storage.

特開2012-180276号公報Japanese Unexamined Patent Publication No. 2012-180276

ガラスには、前記硬質ガラスのような、二酸化ケイ素に各種元素が添加されたガラスの他に、高純度の二酸化ケイ素から成る石英ガラスがあり、バイアル瓶の素材として石英ガラスを用いることにより前記課題は解決され得る。 The glass includes quartz glass made of high-purity silicon dioxide in addition to glass in which various elements are added to silicon dioxide, such as the hard glass. By using quartz glass as a material for vials, the above-mentioned problem Can be resolved.

但し、バイアル瓶をキャップ等で確実に封止し、内容物の長期保存を可能とするためには、バイアル瓶の頸部の外周面（すなわちキャップ等と当接する領域）が正確な形状を有している必要がある。しかしながら、石英素材で、従来の硬質ガラス製のバイアル瓶と同じ形状のバイアル瓶を、従来と同様の方法で大量且つ安価に製造することは極めて困難であった。 However, in order to securely seal the vial with a cap or the like and enable long-term storage of the contents, the outer peripheral surface of the neck of the vial (that is, the area in contact with the cap or the like) has an accurate shape. Must be done. However, it has been extremely difficult to mass-produce and inexpensively produce a vial made of a quartz material and having the same shape as a conventional hard glass vial by the same method as the conventional one.

具体的には、従来のバイアル瓶の製造方法においては、加熱したガラス管を回転させつつ、その外周面に所定形状のローラを押し付けることによって、前記頸部や口部の外周面が所定の形状に成形される。しかし、石英ガラスはホウケイ酸ガラスに比べて軟化温度が高いため、前記従来のバイアル瓶と同様の方法で、頸部の外周面が正確な形状を有するバイアル瓶を多数製造することは困難であった。 Specifically, in the conventional method for manufacturing a vial, the outer peripheral surface of the neck and the mouth has a predetermined shape by pressing a roller having a predetermined shape against the outer peripheral surface of the heated glass tube while rotating the heated glass tube. Is molded into. However, since quartz glass has a higher softening temperature than borosilicate glass, it is difficult to manufacture a large number of vials having an accurate shape on the outer peripheral surface of the neck by the same method as the conventional vial. It was.

本発明は上記の点に鑑みてなされたものであり、その目的とするところは、所定形状を有する石英バイアル瓶を多数製造することのできる方法を提供することである。 The present invention has been made in view of the above points, and an object of the present invention is to provide a method capable of producing a large number of quartz vials having a predetermined shape.

上記課題を解決するためになされた本発明の第１の態様に係る石英バイアル瓶の製造方法は、
物品が収容される胴部と、前記胴部の上方に設けられた円筒状の頸部と、を有する石英バイアル瓶を製造する方法であって、
石英ガラス材に削り出し加工を施すことによって前記頸部の外周面を形成し、
該頸部に、別途作製された胴部を熱融着によって接合することを特徴としている。 The method for producing a quartz vial according to the first aspect of the present invention, which has been made to solve the above problems, is
A method of manufacturing a quartz vial having a body for accommodating articles and a cylindrical neck provided above the body.
By carving out the quartz glass material, the outer peripheral surface of the neck is formed.
It is characterized in that a separately prepared body portion is joined to the neck portion by heat fusion.

なお、本発明において、「熱融着」とは、加熱したガラス同士を当接させることによって当該ガラス同士を接合することを意味している。また、前記削り出しには、例えば、研削加工、切削加工、又は研磨加工等の加工法が含まれる。 In the present invention, "heat fusion" means that the heated glasses are brought into contact with each other to join the glasses. Further, the machining includes, for example, a processing method such as grinding, cutting, or polishing.

上記本発明に係る石英バイアル瓶の製造方法では、石英バイアル瓶の頸部の外周面を削り出しによって形成するため、該頸部の外周面において所定の形状を正確に有する石英バイアル瓶を製造することができる。これにより、薬品等の長期保存に耐え得る、密閉性のよい石英バイアル瓶を多数製造することが可能となる。 In the method for manufacturing a quartz vial according to the present invention, since the outer peripheral surface of the neck of the quartz vial is formed by carving, a quartz vial having an accurate predetermined shape on the outer peripheral surface of the neck is manufactured. be able to. This makes it possible to manufacture a large number of quartz vials with good airtightness that can withstand long-term storage of chemicals and the like.

なお、頸部に胴部を接合する工程において、胴部の下端は底部によって閉鎖されていてもよく、閉鎖されていなくてもよい。後者の場合、胴部の接合が完了した後に、胴部の下端を加熱して封止することによって底部を形成するか、別途形成した底部を胴部に接合する。 In the step of joining the body to the neck, the lower end of the body may or may not be closed by the bottom. In the latter case, after the joining of the body portion is completed, the bottom portion is formed by heating and sealing the lower end of the body portion, or the separately formed bottom portion is joined to the body portion.

また、上記課題を解決するためになされた本発明の第２の態様に係る石英バイアル瓶の製造方法は、
物品が収容される胴部と、前記胴部の上方に設けられた円筒状の頸部と、を有する石英バイアル瓶を製造する方法であって、
石英ガラス材に削り出し加工を施すことによって前記頸部の外周面を形成し、
前記石英ガラス材の前記頸部に隣接する部分を熱加工することにより前記胴部を形成することを特徴としている。 In addition, the method for producing a quartz vial according to the second aspect of the present invention, which has been made to solve the above problems, is described.
A method of manufacturing a quartz vial having a body for accommodating articles and a cylindrical neck provided above the body.
By carving out the quartz glass material, the outer peripheral surface of the neck is formed.
The body is formed by heat-processing a portion of the quartz glass material adjacent to the neck.

ここで熱加工とは、石英ガラスを加熱して軟化又は溶融させた上で、該石英ガラスを変形させる加工方法を意味している。なお、上記の製造方法において、頸部の外周面の形成、及び胴部の形成の時間的順序は上記の通りでなくてもよい。また、胴部を形成する工程では、更に、該胴部の下端を閉鎖する底部を形成するようにしてもよく、あるいは、胴部のみを形成し、その後、該胴部に別の石英ガラス材から形成した底部を接合してもよい。 Here, the thermal processing means a processing method in which quartz glass is heated to soften or melt it, and then the quartz glass is deformed. In the above manufacturing method, the temporal order of the formation of the outer peripheral surface of the neck and the formation of the body may not be as described above. Further, in the step of forming the body portion, a bottom portion that closes the lower end of the body portion may be further formed, or only the body portion is formed and then another quartz glass material is formed on the body portion. The bottom formed from may be joined.

また、上記課題を解決するためになされた本発明の第３の態様に係る石英バイアル瓶の製造方法は、
物品が収容される胴部と、前記胴部の上方に設けられた円筒状の頸部と、を有する石英バイアル瓶を製造する方法であって、
円筒状の石英ガラス材を切断することによって前記頸部を形成し、
該頸部に、別途作製された胴部を熱融着によって接合することを特徴としている。 In addition, the method for producing a quartz vial according to a third aspect of the present invention, which has been made to solve the above problems, is described.
A method of manufacturing a quartz vial having a body for accommodating articles and a cylindrical neck provided above the body.
The neck is formed by cutting a cylindrical quartz glass material.
It is characterized in that a separately prepared body portion is joined to the neck portion by heat fusion.

なお、上記本発明の第３の態様に係る石英バイアル瓶の製造方法は、
前記バイアル瓶が、更に、前記頸部の上方に設けられ該頸部よりも外径の大きい円筒状の口部を有するものであって、
更に、
前記石英ガラス材の内径と同一の内径及び前記石英ガラス材の外径よりも大きい外径を有する円筒形のガラス材である第２の石英ガラス材を切断することによって前記口部を形成し、
前記頸部の、前記胴部が接合される側の端部とは逆側の端部に、前記口部を接合するものとすることができる。 The method for producing a quartz vial according to the third aspect of the present invention is described.
The vial is further provided above the neck and has a cylindrical mouth having a larger outer diameter than the neck.
In addition
The mouth portion is formed by cutting a second quartz glass material which is a cylindrical glass material having the same inner diameter as the inner diameter of the quartz glass material and an outer diameter larger than the outer diameter of the quartz glass material.
The mouth portion may be joined to the end portion of the neck portion opposite to the end portion on the side to which the body portion is joined.

更に、本発明は、前記本発明の第１の態様又は第３の態様に係る石英バイアル瓶の製造方法によって製造された石英バイアル瓶をも提供する。 Furthermore, the present invention also provides a quartz vial produced by the method for producing a quartz vial according to the first aspect or the third aspect of the present invention.

すなわち、本発明に係る石英バイアル瓶は、
物品が収容される胴部と、前記胴部の上方に設けられた円筒状の頸部と、を有する石英バイアル瓶であって、
前記頸部の下端から前記胴部の下端までのいずれかの位置に石英ガラス同士の熱融着による接合部を有することを特徴としている。 That is, the quartz vial according to the present invention is
A quartz vial having a body for accommodating articles and a cylindrical neck provided above the body.
It is characterized by having a joint portion by heat fusion between quartz glasses at any position from the lower end of the neck portion to the lower end of the body portion.

上記本発明に係る石英バイアル瓶は、
更に、前記頸部の上方に設けられ該頸部よりも外径の大きい円筒状の口部を有するものであって、
該口部の下端から前記胴部の下端までのいずれかの位置に石英ガラス同士の熱融着による接合部を有するものとすることもできる。 The quartz vial according to the present invention is
Further, it has a cylindrical mouth portion provided above the neck portion and having an outer diameter larger than that of the neck portion.
It is also possible to have a joint portion by heat fusion between quartz glasses at any position from the lower end of the mouth portion to the lower end of the body portion.

以上の通り、本発明に係る石英バイアル瓶の製造方法によれば、所定形状を有する石英バイアル瓶を多数製造することが可能となる。 As described above, according to the method for manufacturing a quartz vial according to the present invention, it is possible to manufacture a large number of quartz vials having a predetermined shape.

本発明の第１の実施態様に係る石英バイアル瓶及びその口部に取り付けられるゴム栓の形状を示す側面図。The side view which shows the shape of the quartz vial which concerns on 1st Embodiment of this invention, and the rubber stopper attached to the mouth portion thereof. 前記石英バイアルの口部に被せられるキャップの断面図。The cross-sectional view of the cap which covers the mouth part of the quartz vial. 同実施形態に係る石英バイアル瓶の製造方法を説明する図。The figure explaining the manufacturing method of the quartz vial bottle which concerns on this embodiment. 同実施形態に係る石英バイアル瓶の製造方法の別の例を説明する図。The figure explaining another example of the manufacturing method of the quartz vial bottle which concerns on the same embodiment. 本発明の第２の実施形態に係る石英バイアル瓶の製造方法を説明する図。The figure explaining the manufacturing method of the quartz vial bottle which concerns on 2nd Embodiment of this invention. 本発明の第３の実施形態に係る石英バイアル瓶の製造方法を説明する図。The figure explaining the manufacturing method of the quartz vial bottle which concerns on 3rd Embodiment of this invention. 同実施形態に係る石英バイアル瓶の製造方法の別の例を説明する図。The figure explaining another example of the manufacturing method of the quartz vial bottle which concerns on the same embodiment.

以下、本発明を実施するための形態について図面を参照しつつ説明を行う。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

［実施形態１］
図１に本発明の第１の実施形態に係る石英バイアル瓶１０及びこれに取り付けられるゴム栓２０（樹脂栓）の構成を示す。この石英バイアル瓶１０は、全体が石英ガラスから成り、薬品等の物品を収容するための円筒状の胴部１４と、胴部１４の下端を閉鎖する底部１５と、胴部１４の上方に設けられた、胴部１４よりも外径の小さい円筒状の頸部１３と、頸部１３の上方に設けられ、頸部１３よりも外径の大きい円筒状の口部１１と、を備えている。口部１１及び頸部１３は、いずれもその中心部に、軸方向（上下方向）に延伸する同一径の貫通孔を有しており、これにより口部１１の上端から頸部１３の下端に至る通路が形成されている。該通路は胴部１４の内部空間に連通している。 [Embodiment 1]
FIG. 1 shows the configuration of the quartz vial bottle 10 according to the first embodiment of the present invention and the rubber stopper 20 (resin stopper) attached to the quartz vial bottle 10. The quartz vial bottle 10 is entirely made of quartz glass, and is provided with a cylindrical body 14 for accommodating articles such as chemicals, a bottom 15 for closing the lower end of the body 14, and an upper part of the body 14. It is provided with a cylindrical neck portion 13 having an outer diameter smaller than that of the body portion 14 and a cylindrical mouth portion 11 provided above the neck portion 13 and having an outer diameter larger than that of the neck portion 13. .. Both the mouth portion 11 and the neck portion 13 have a through hole having the same diameter extending in the axial direction (vertical direction) in the central portion thereof, whereby the upper end of the mouth portion 11 to the lower end of the neck portion 13. A passage leading to it is formed. The passage communicates with the internal space of the body portion 14.

ゴム栓２０は、例えばブチル・ゴムから成り、石英バイアル瓶１０の口部１１の孔（すなわち前記貫通孔の上端）に挿入される栓部２１と、栓部２１が石英バイアル瓶１０の口部１１に挿入された際に、口部１１の上面と当接する円盤部２２と、を備えている。 The rubber stopper 20 is made of, for example, butyl rubber, and the stopper portion 21 inserted into the hole (that is, the upper end of the through hole) of the mouth portion 11 of the quartz vial bottle 10 and the stopper portion 21 are the mouth portion of the quartz vial bottle 10. A disk portion 22 that comes into contact with the upper surface of the mouth portion 11 when inserted into the mouth portion 11 is provided.

石英バイアル瓶１０の口部１１の外径は、ゴム栓２０の円盤部２２の直径と等しく、口部１１の内径（すなわち前記貫通孔の直径）は、ゴム栓２０の栓部２１の外径と等しくなっている。 The outer diameter of the mouth 11 of the quartz vial 10 is equal to the diameter of the disk 22 of the rubber stopper 20, and the inner diameter of the mouth 11 (that is, the diameter of the through hole) is the outer diameter of the stopper 21 of the rubber stopper 20. Is equal to.

本実施形態に係る石英バイアル瓶１０を薬品等の保存に使用する際には、その胴部１４に薬品等を収容した上で、口部１１にゴム栓２０が嵌め込まれる。更に、その上からアルミニウム等の比較的柔らかい金属から成るキャップ３０（図２）が被せられ、このキャップ３０をかしめ（巻き締め）ることによって石英バイアル瓶１０が密閉される。 When the quartz vial 10 according to the present embodiment is used for storing chemicals or the like, the rubber stopper 20 is fitted into the mouth portion 11 after the chemicals or the like are stored in the body portion 14. Further, a cap 30 (FIG. 2) made of a relatively soft metal such as aluminum is put on the cap 30, and the quartz vial bottle 10 is sealed by caulking (winding) the cap 30.

以下、本実施形態に係る石英バイアル瓶１０の製造方法について図３を参照しつつ説明する。まず、所定の形状及び大きさの石英ガラス材を用意し、該石英ガラス材に、熱加工、又は削り出し加工（例えば研削砥石を用いた研削加工）を施すことによって、石英バイアル瓶１０の口部１１及び頸部１３を一体に形成して成るパーツを作製する（図３（ａ）上段）。なお、このとき、少なくとも頸部１３の外周面は、削り出しによって形成する。更に、口部１１及び頸部１３の内周面に研削加工を施すようにしてもよい。 Hereinafter, the method for producing the quartz vial 10 according to the present embodiment will be described with reference to FIG. First, a quartz glass material having a predetermined shape and size is prepared, and the quartz glass material is subjected to thermal processing or shaving processing (for example, grinding processing using a grinding wheel) to perform the mouth of the quartz vial 10. A part formed by integrally forming the portion 11 and the neck portion 13 is produced (upper part of FIG. 3A). At this time, at least the outer peripheral surface of the neck portion 13 is formed by carving. Further, the inner peripheral surfaces of the mouth portion 11 and the neck portion 13 may be ground.

一方、前記石英ガラス材（第１石英ガラス材とよぶ）とは別の石英ガラス材（第２石英ガラス材とよぶ）から、頸部１３と外径及び内径が同一である上部開口１４ａを備えた無底の胴部１４を作製する（図３（ａ）下段）。この胴部１４は、例えば、第２石英ガラス材として石英ガラスから成るガラス管を使用し、その一端をバーナーで加熱しつつ絞りローラによって径を絞ることで作製することができる。 On the other hand, from a quartz glass material (called a second quartz glass material) different from the quartz glass material (called a first quartz glass material), an upper opening 14a having the same outer diameter and inner diameter as the neck 13 is provided. A bottomless body 14 is manufactured (lower part of FIG. 3A). The body portion 14 can be manufactured, for example, by using a glass tube made of quartz glass as the second quartz glass material and reducing the diameter with a drawing roller while heating one end thereof with a burner.

その後、第１石英ガラス材から作製された頸部１３の下端と、第２石英ガラス材から作製された胴部１４の上部開口１４ａの周縁部とをバーナーで加熱した上で互いに当接させることにより、第１石英ガラス材から作製されたパーツと第２石英ガラス材から作製されたパーツとを熱融着させる（図３（ｂ））。なお、頸部１３の外周面は、削り出しによってスリ面となっているため、前記熱融着を行う際などに、該スリ面をバーナーで加熱し、表面の微細な凹凸を溶融させて平滑化させることが望ましい。 After that, the lower end of the neck portion 13 made of the first quartz glass material and the peripheral edge portion of the upper opening 14a of the body portion 14 made of the second quartz glass material are heated by a burner and brought into contact with each other. The parts made from the first quartz glass material and the parts made from the second quartz glass material are heat-sealed (FIG. 3 (b)). Since the outer peripheral surface of the neck portion 13 is a threaded surface due to carving, the threaded surface is heated with a burner when performing the heat fusion or the like to melt fine irregularities on the surface and smooth the surface. It is desirable to make it.

続いて、胴部１４の下端をバーナーで加熱しつつ封止することにより、石英バイアル瓶１０の底部１５を形成する（図３（ｃ））。これにより、製品となる石英バイアル瓶１０が完成する。 Subsequently, the lower end of the body portion 14 is sealed while being heated by a burner to form the bottom portion 15 of the quartz vial bottle 10 (FIG. 3 (c)). As a result, the product quartz vial 10 is completed.

なお、図３では、胴部１４の下端（すなわち上部開口１４ａとは逆側の端部）が開放された状態で、第１石英ガラス材から作製されたパーツと第２石英ガラス材から作製されたパーツとを接合したが、胴部１４の下端を封止（すなわち石英バイアル瓶１０の底部１５を形成）した後に、第１石英ガラス材から作製されたパーツと第２石英ガラス材から作製されたパーツとの接合を行うようにしてもよい。 In FIG. 3, the lower end of the body portion 14 (that is, the end portion opposite to the upper opening 14a) is opened, and the parts are made of the first quartz glass material and the second quartz glass material. The parts were joined, but after the lower end of the body 14 was sealed (that is, the bottom 15 of the quartz vial 10 was formed), the parts were made from the first quartz glass material and the second quartz glass material. You may try to join with the parts.

また、図４（ｂ）に示すような、円錐状に窪んだ内底面（すなわち、底部４５の上面）を有する石英バイアル瓶４０を製造する場合には、例えば、図４（ａ）に示すように、口部４１及び頸部４３を一体成形して成る第１パーツ４６と、胴部４４の上側の領域４４ｂに相当する第２パーツ４７と、胴部４４の下側の領域４４ｃ及び円錐状に窪んだ上面を有する底部４５に相当する第３パーツ４８と、を個別に作製し、これら３つのパーツ４６、４７、４８を熱融着によって接合することによって石英バイアル瓶４０を製造する。なお、前記３つのパーツ４６、４７、４８は、例えば、それぞれ異なる石英ガラス材に熱加工又は削り出し加工を施すことによって作製することができる。このとき、少なくとも頸部４３の外周面は削り出し加工によって形成する。 Further, when manufacturing a quartz vial 40 having a conical recessed inner bottom surface (that is, the upper surface of the bottom portion 45) as shown in FIG. 4 (b), for example, as shown in FIG. 4 (a). The first part 46 formed by integrally molding the mouth portion 41 and the neck portion 43, the second part 47 corresponding to the upper region 44b of the body portion 44, the lower region 44c of the body portion 44, and the conical shape. A third part 48, which corresponds to a bottom portion 45 having a recessed upper surface, is individually manufactured, and the three parts 46, 47, and 48 are joined by heat fusion to manufacture a quartz vial 40. The three parts 46, 47, and 48 can be manufactured, for example, by subjecting different quartz glass materials to heat processing or machine processing. At this time, at least the outer peripheral surface of the neck 43 is formed by machining.

以上のいずれかの方法により製造された本実施形態に係る石英バイアル瓶は、頸部の下端から胴部の下端までのいずれかの位置に、石英ガラス同士の熱融着による接合部を有するものとなる。例えば、図３の方法で製造された石英バイアル瓶１０は、頸部１３と胴部１４の境界に接合部を有し、図４の方法で製造された石英バイアル瓶４０は、頸部４３と胴部４４の境界に接合部を有すると共に、胴部４４の上端から下端までのいずれかの位置に接合部（図中の符号４４ｄ）を有するものとなる。 The quartz vial according to the present embodiment manufactured by any of the above methods has a joint portion by heat fusion between quartz glasses at any position from the lower end of the neck to the lower end of the body. It becomes. For example, the quartz vial 10 manufactured by the method of FIG. 3 has a joint at the boundary between the neck 13 and the body 14, and the quartz vial 40 manufactured by the method of FIG. 4 has a joint with the neck 43. A joint portion is provided at the boundary of the body portion 44, and a joint portion (reference numeral 44d in the drawing) is provided at any position from the upper end to the lower end of the body portion 44.

［実施形態２］
続いて、本発明の第２の実施形態に係る石英バイアル瓶の製造方法について、図５を参照しつつ説明する。本実施形態に係る石英バイアル瓶１０の製造方法は、石英バイアル瓶の全体を一つの石英ガラス材から一体成形するものである。なお、製品となる石英バイアル瓶１０の形状は図１で示したものと同様である。まず、適当な大きさ及び形状を有する石英ガラス材から、例えば溶融成形などにより円筒状のパーツを作製し、該パーツに削り出し加工（例えば、研削砥石を用いた研削加工）や、バーナーを用いた熱加工等を施すことによって、石英バイアル瓶１０の口部１１及び頸部１３を形成する（図５（ａ））。このとき、少なくとも頸部１３の外周面は、削り出しによって形成する。なお、前記削り出しによって形成された面はスリ面となるため、バーナー等で該スリ面を加熱し、表面の微細な凹凸を溶融させて平滑化することが望ましい。続いて、前記円筒状のパーツの下端をバーナーで加熱しつつ封止することにより、石英バイアル瓶１０の底部１５を形成する（図５（ｂ））。次に、ブロー成形により、頸部１３よりも下側の領域（すなわち前記円筒状のパーツの頸部１３に隣接する部分であって、口部１１とは逆側の部分）の内径、外径、及び長さを拡大させることにより、石英バイアル瓶１０の胴部１４を形成する（図５（ｃ））。これにより、製品となる石英バイアル瓶１０が完成する。 [Embodiment 2]
Subsequently, a method for manufacturing a quartz vial according to a second embodiment of the present invention will be described with reference to FIG. The method for manufacturing a quartz vial 10 according to the present embodiment is to integrally mold the entire quartz vial from one quartz glass material. The shape of the quartz vial 10 as a product is the same as that shown in FIG. First, a cylindrical part is produced from a quartz glass material having an appropriate size and shape by, for example, melt molding, and the part is machined (for example, grinding using a grinding wheel) or a burner is used. The mouth portion 11 and the neck portion 13 of the quartz vial 10 are formed by performing the heat processing or the like (FIG. 5 (a)). At this time, at least the outer peripheral surface of the neck portion 13 is formed by carving. Since the surface formed by the cutting is a threaded surface, it is desirable to heat the threaded surface with a burner or the like to melt and smooth the fine irregularities on the surface. Subsequently, the lower end of the cylindrical part is sealed while being heated by a burner to form the bottom portion 15 of the quartz vial bottle 10 (FIG. 5 (b)). Next, by blow molding, the inner diameter and outer diameter of the region below the neck 13 (that is, the portion adjacent to the neck 13 of the cylindrical part and opposite to the mouth 11). , And by increasing the length, the body 14 of the quartz vial 10 is formed (FIG. 5 (c)). As a result, the product quartz vial 10 is completed.

［実施形態３］
続いて、本発明の第３の実施形態に係る石英バイアル瓶の製造方法について、図６を参照しつつ説明する。なお、本実施形態に係る方法で製造される石英バイアル瓶１０の形状は、図１で示したものと同様である。 [Embodiment 3]
Subsequently, a method for manufacturing a quartz vial according to a third embodiment of the present invention will be described with reference to FIG. The shape of the quartz vial 10 produced by the method according to the present embodiment is the same as that shown in FIG.

まず、それぞれ異なる石英ガラス管を切断することによって、口部１１のみから成るパーツと、頸部１３のみから成るパーツとを個別に作製する。ここで、口部１１のみから成るパーツは、内径及び外径が、それぞれ製品となる石英バイアル瓶１０の口部１１の内径及び外径と等しいものを切断することによって作製する。また、頸部１３のみから成るパーツは、内径及び外径が、それぞれ製品となる石英バイアル瓶１０の頸部１３の内径及び外径と等しいものを切断することによって作製する。 First, by cutting different quartz glass tubes, a part composed of only the mouth portion 11 and a part composed of only the neck portion 13 are individually produced. Here, the part consisting of only the mouth portion 11 is manufactured by cutting a part having an inner diameter and an outer diameter equal to the inner diameter and the outer diameter of the mouth portion 11 of the quartz vial 10 to be a product, respectively. Further, a part composed of only the neck portion 13 is manufactured by cutting a part having an inner diameter and an outer diameter equal to the inner diameter and the outer diameter of the neck portion 13 of the quartz vial 10 to be a product, respectively.

続いて、これら２つのパーツを熱融着によって互いに接合すると共に、別途作製された胴部１４及び底部１５から成るパーツを、頸部１３の下端に熱融着する。このようにして製造されたバイアル瓶１０は、口部１１と頸部１３の境界及び頸部１３と胴部１４の境界に熱融着による接合部を有するものとなる。 Subsequently, these two parts are joined to each other by heat fusion, and the separately manufactured parts composed of the body portion 14 and the bottom portion 15 are heat-sealed to the lower end of the neck portion 13. The vial bottle 10 produced in this manner has a joint portion by heat fusion at the boundary between the mouth portion 11 and the neck portion 13 and the boundary between the neck portion 13 and the body portion 14.

なお、本実施形態においても、パーツ同士を接合する時点では、胴部１４の下端は開放された状態（すなわち無底の状態）としておき、パーツ同士の接合が完了した後に、胴部１４の下端を閉鎖することによって底部１５を形成するようにしてもよい。 Also in the present embodiment, at the time of joining the parts, the lower end of the body portion 14 is left in an open state (that is, a bottomless state), and after the joining of the parts is completed, the lower end of the body portion 14 is set. The bottom 15 may be formed by closing the.

また、図７（ｂ）に示すような、口部を有しない（すなわち、頸部５３、胴部５４、及び底部５５のみから成る）バイアル瓶５０を製造する場合には、内寸及び外寸が、それぞれ製造しようとする石英バイアル瓶５０の頸部５３の内寸及び外寸と等しい石英ガラス管を用意し、これを切断することによって頸部５３のみから成るパーツを作製する。そして、該パーツを、別途作製された胴部５４及び底部５５から成るパーツと熱融着によって接合することにより、製品となる石英バイアル瓶５０を製造する。このようにして製造された石英バイアル瓶は、頸部５３と胴部５４の境界に熱融着による接合部を有するものとなる。なお、この場合も、パーツ同士を接合する時点では、胴部５４の下端は開放された状態（すなわち無底の状態）としておき、パーツ同士の接合が完了した後に、胴部５４の下端を閉鎖することによって底部５５を形成するようにしてもよい。 Further, when manufacturing a vial bottle 50 having no mouth (that is, consisting of only the neck 53, the body 54, and the bottom 55) as shown in FIG. 7 (b), the inner and outer dimensions are formed. However, a quartz glass tube having the same inner and outer dimensions as the neck 53 of the quartz vial 50 to be manufactured is prepared, and a part consisting of only the neck 53 is manufactured by cutting the quartz glass tube. Then, the quartz vial bottle 50 to be a product is manufactured by joining the parts to the separately manufactured parts including the body portion 54 and the bottom portion 55 by heat fusion. The quartz vial produced in this manner has a heat-sealed joint at the boundary between the neck 53 and the body 54. Also in this case, the lower end of the body portion 54 is left open (that is, the bottomless state) at the time of joining the parts, and the lower end of the body portion 54 is closed after the joining of the parts is completed. The bottom 55 may be formed by this.

１０、４０、５０…石英バイアル瓶
１１、４１…口部
１３、４３、５３…頸部
１４、４４、５３…胴部
１４ａ…上部開口
４４ｄ…接合部
１５、４５、５５…底部
２０…ゴム栓
２１…栓部
２２…円盤部
３０…キャップ 10, 40, 50 ... Quartz vials 11, 41 ... Mouth 13, 43, 53 ... Neck 14, 44, 53 ... Body 14a ... Top opening 44d ... Joint 15, 45, 55 ... Bottom 20 ... Rubber stopper 21 ... Plug part 22 ... Disk part 30 ... Cap

Claims (3)

物品が収容される胴部と、前記胴部の上方に設けられた円筒状の頸部と、を有する石英バイアル瓶を製造する方法であって、
石英ガラス材に削り出し加工を施すことによって前記頸部の外周面を形成し、
該頸部に、別途作製された胴部を熱融着によって接合するものであって、
前記胴部の下端を熱加工によって封止する工程を有することを特徴とする石英バイアル瓶の製造方法。 A method of manufacturing a quartz vial having a body for accommodating articles and a cylindrical neck provided above the body.
By carving out the quartz glass material, the outer peripheral surface of the neck is formed.
A separately prepared body is joined to the neck by heat fusion.
A method for producing a quartz vial, which comprises a step of sealing the lower end of the body portion by thermal processing. 物品が収容される胴部と、前記胴部の上方に設けられた円筒状の頸部と、を有する石英バイアル瓶を製造する方法であって、
円筒状の石英ガラス材を切断することによって前記頸部を形成し、
該頸部に、別途作製された胴部を熱融着によって接合するものであって、
前記胴部の下端を熱加工によって封止する工程を有することを特徴とする石英バイアル瓶の製造方法。 A method of manufacturing a quartz vial having a body for accommodating articles and a cylindrical neck provided above the body.
The neck is formed by cutting a cylindrical quartz glass material.
A separately prepared body is joined to the neck by heat fusion.
A method for producing a quartz vial, which comprises a step of sealing the lower end of the body portion by thermal processing. 前記バイアル瓶が、更に、前記頸部の上方に設けられ該頸部よりも外径の大きい円筒状の口部を有するものであって、
更に、
前記石英ガラス材の内径と同一の内径及び前記石英ガラス材の外径よりも大きい外径を有する円筒形のガラス材である第２の石英ガラス材を切断することによって前記口部を形成し、
前記頸部の、前記胴部が接合される側の端部とは逆側の端部に、前記口部を接合することを特徴とする請求項２に記載の石英バイアル瓶の製造方法。 The vial is further provided above the neck and has a cylindrical mouth having a larger outer diameter than the neck.
In addition
The mouth portion is formed by cutting a second quartz glass material which is a cylindrical glass material having the same inner diameter as the inner diameter of the quartz glass material and an outer diameter larger than the outer diameter of the quartz glass material.
The method for producing a quartz vial according to claim 2, wherein the mouth portion is joined to the end portion of the neck portion opposite to the end portion on the side to which the body portion is joined.
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