JP2018027686A

JP2018027686A - Joint component, production method for joint component, ink tank, and ink cartridge

Info

Publication number: JP2018027686A
Application number: JP2017138546A
Authority: JP
Inventors: 広樹若山; Hiroki Wakayama; 源裕渡邊; Motohiro Watanabe; 利行富田; Toshiyuki Tomita
Original assignee: Canon Inc
Current assignee: Canon Inc
Priority date: 2016-08-12
Filing date: 2017-07-14
Publication date: 2018-02-22
Anticipated expiration: 2037-07-14
Also published as: JP2019064277A; JP6463415B2; JP7271167B2

Abstract

PROBLEM TO BE SOLVED: To provide a joint component capable of reducing deformation of joining resin due to an injection pressure and capable of preventing an increase in cost.SOLUTION: A hollow component 1being a joint component has a container component 10 having a wall part 11 surrounding a space part, a lid component 20 and an injection component 30. Further, the component has a first shape part 41 formed of joining resin between the lid component and the wall part 11 and a second shape part 42 formed of the joining resin between the wall part 11 and an injection component 30. Besides, the component has a third shape part 43 being formed of the above joining resin and connecting the first shape part 41 and the second shape part 42.SELECTED DRAWING: Figure 1

Description

本発明は、射出した接合用樹脂により、空間部を有する第１部品、第２部品、及び第３部品を接合して形成される接合部品、その接合部品の製造方法、インクタンク、及びインクカートリッジに関する。 The present invention relates to a joined part formed by joining a first part, a second part, and a third part having a space by an injected joining resin, a method for manufacturing the joined part, an ink tank, and an ink cartridge. About.

射出成形等の成形方法では、あらかじめ溶融した材料を金型内部のキャビティ空間に供給し、材料を金型内で冷却・固化させた後、エジェクタ機構等により金型から取出し所望の成形品を得るという一連の動作を繰り返して生産が行われる。通常、射出成形で中空形状を形成する場合はブロー成形が用いられるが、ブロー成形では中空形状の内部に仕切りを設けたり何らかの部材を配置したりして、何らかの機能を持たせることができない。 In a molding method such as injection molding, a previously melted material is supplied to the cavity space inside the mold, and after the material is cooled and solidified in the mold, it is taken out from the mold by an ejector mechanism or the like to obtain a desired molded product. Production is performed by repeating a series of operations. Normally, blow molding is used when a hollow shape is formed by injection molding, but blow molding cannot provide any function by providing a partition or arranging some member inside the hollow shape.

そこで、例えば容器と蓋の組み合わせにより中空形状を形成し、かつ内部に機能を持たせる場合は、まずは容器と蓋とをそれぞれの金型を用いて射出成形により製造する。次に、それらの部品を後工程における超音波溶着や振動溶着を用いて接合すれば、内部に機能を持たせた中空形状の部品を得ることができる。また、ＤＳＩ（ダイ・スライド・インジェクション）などに代表される型内組立においては、あらかじめ１次成形において製造した２つ以上の部品を何らかの方法で組み合わせ、２次成形により接合形状を射出成形する。これにより、射出成形で内部に複雑な形状を実現することができる。 Therefore, for example, when a hollow shape is formed by a combination of a container and a lid and the inside has a function, the container and the lid are first manufactured by injection molding using respective molds. Next, if these parts are joined using ultrasonic welding or vibration welding in a subsequent process, a hollow part having a function inside can be obtained. Further, in the in-mold assembly represented by DSI (die slide injection) or the like, two or more parts manufactured in advance in the primary molding are combined by some method and the joint shape is injection molded by secondary molding. Thereby, a complicated shape can be realized inside by injection molding.

また、型内組立においては、通常２部品を接合して中空形状を製造する場合がほとんどだが、３部品以上を組み合わせて接合する場合もある。３部品を接合する場合、それぞれの部品の接合箇所が隣り合っていない場合、ゲートを２箇所以上にすることで、必要な接合箇所のみに接合用樹脂を充填させることができる。しかしながら、ゲートを２箇所以上にする場合、金型の造が複雑となり、その結果、金型のコストアップになることがあるため、なるべく１個所のゲートで成形することが望ましい。そのため、合成樹脂製マニホルドの製造方法として、ガス吸入部と、デリバリパイプ部と、シリンダヘッド接合部との３部品を接合する際、まず、それぞれの部品を射出成形機の金型内にセットする。そして、インサート成形により表面に被覆層を設けることで、３部品を一体に成形する方法が提案されている（特許文献１）。 In addition, in the in-mold assembly, usually, two parts are joined together to produce a hollow shape, but there are also cases where three parts or more are joined together. In the case of joining three parts, if the joint parts of the respective parts are not adjacent to each other, the bonding resin can be filled only in the necessary joint parts by using two or more gates. However, when the number of gates is two or more, the fabrication of the mold becomes complicated, and as a result, the cost of the mold may be increased. Therefore, it is desirable to mold with one gate as much as possible. Therefore, as a method for manufacturing a synthetic resin manifold, when joining three parts, that is, a gas suction part, a delivery pipe part, and a cylinder head joint part, first, each part is set in a mold of an injection molding machine. . And the method of shape | molding 3 components integrally by providing a coating layer on the surface by insert molding is proposed (patent document 1).

特開平３−６７０５６号公報Japanese Patent Laid-Open No. 3-67056

しかしながら、特許文献１の方法で３部品を一体に形成しようとすると、中空形状の部品における外壁面の全面に対して接合用樹脂を成形する必要がある。この際、内部に金型が配置されていない中空形状の部品には、接合のために射出された樹脂の圧力がかかり、成形品が内側に大きく変形する虞がある。その対策として、例えば中空形状の部品を窒素ガスで凍結して剛性を保持させる方法や、中空形状の部品に水を入れて凍らせることで剛性を保持させる方法も考えられる。しかしながら、これらの方法では新たな設備導入が必要になったり、新たな工程が増えたりする等、製造コストがアップするため現実的ではない。 However, when three parts are formed integrally by the method of Patent Document 1, it is necessary to mold a bonding resin on the entire outer wall surface of the hollow part. At this time, the pressure of the resin injected for joining is applied to a hollow part in which no mold is disposed, and the molded product may be greatly deformed inward. As a countermeasure, for example, a method of freezing a hollow part with nitrogen gas to maintain rigidity, or a method of maintaining rigidity by putting water in the hollow part and freezing it can be considered. However, these methods are not practical because the manufacturing cost increases such as the introduction of new equipment or the increase of new processes.

そこで本発明は、３部品を一体に形成する際に、接合用樹脂の射出圧力による変形を低減し、かつコストアップの防止を図ることが可能な接合部品、及び接合部品の製造方法を提供することを目的とするものである。 Therefore, the present invention provides a joining component capable of reducing deformation due to the injection pressure of the joining resin and preventing cost increase when three components are integrally formed, and a method for manufacturing the joining component. It is for the purpose.

本発明に係る接合部品は、空間部を囲む壁部を有する第１部品と、第２部品と、第３部品と、前記第２部品と前記壁部との間に、接合用樹脂により形成される第１形状部と、前記壁部と前記第３部品との間に、前記接合用樹脂により形成される第２形状部と、前記第１形状部と前記第２形状部とをつなぐ前記接合用樹脂により形成される第３形状部と、を有することを特徴とする。 A joining component according to the present invention is formed of a joining resin between a first component having a wall portion surrounding a space portion, a second component, a third component, and the second component and the wall portion. The first shape portion, the second shape portion formed of the bonding resin, and the joint connecting the first shape portion and the second shape portion between the wall portion and the third part. And a third shape portion formed of resin for use.

また、本発明に係る接合部品の製造方法は、第１部品と、前記第１部品の一方側に接合用樹脂により形成される第１形状部で接合される第２部品と、前記第１部品の他方側に前記接合用樹脂により形成される第２形状部で接合される第３部品と、を金型にインサートするインサート工程と、前記第２部品に形成されている孔に前記接合用樹脂を射出し、前記第１形状部、前記第１形状部及び前記第２形状部をつなぐ第３形状部、及び前記第２形状部に樹脂を充填する充填工程と、を備えることを特徴とする。 Moreover, the manufacturing method of the joining component which concerns on this invention is the 1st component, the 2nd component joined by the 1st shape part formed with the resin for joining to the one side of the said 1st component, and the said 1st component A third part to be joined to the other side of the second shape part formed by the joining resin, an insert step of inserting the mold into a mold, and the joining resin in the hole formed in the second part And a filling step of filling the second shape portion with a resin, the first shape portion, a third shape portion connecting the first shape portion and the second shape portion, and a filling step of filling the second shape portion with resin. .

本発明によると、例えば１つのゲート孔から接合用樹脂を射出することで第１部品、第２部品、及び第３部品を一体に形成することを可能とするものでありながら、接合用樹脂の射出圧力による第１部品の変形を低減することができる。また、第１部品の剛性を保持するための新たな設備導入や新たな工程を設けることが不要となり、コストアップの防止を図ることができる。 According to the present invention, for example, the first component, the second component, and the third component can be integrally formed by injecting the bonding resin from one gate hole. The deformation of the first part due to the injection pressure can be reduced. In addition, it is not necessary to introduce new equipment or a new process for maintaining the rigidity of the first component, thereby preventing an increase in cost.

第１の実施形態に係る中空部品を示す図で、（ａ）は分解斜視図、（ｂ）は接合用樹脂の部分だけを示す一部省略斜視図、（ｃ）は外観斜視図。It is a figure which shows the hollow component which concerns on 1st Embodiment, (a) is a disassembled perspective view, (b) is a partially-omission perspective view which shows only the part of the resin for joining, (c) is an external appearance perspective view. 第１の実施形態に係る中空部品の接合前の状態を示す分解斜視図。The disassembled perspective view which shows the state before joining of the hollow components which concern on 1st Embodiment. 射出成形機と金型を示す模式図。The schematic diagram which shows an injection molding machine and a metal mold | die. 中空部品の製造工程を示すフローチャート。The flowchart which shows the manufacturing process of a hollow component. 第２の実施形態に係る中空部品を示す図で、（ａ）は分解斜視図、（ｂ）は接合用樹脂の部分だけを示す一部省略斜視図。It is a figure which shows the hollow component which concerns on 2nd Embodiment, (a) is a disassembled perspective view, (b) is a partially-omission perspective view which shows only the part of resin for joining. 第３の実施形態に係る中空部品を示す図で、（ａ）は分解斜視図、（ｂ）は接合用樹脂の部分だけを示す一部省略斜視図。It is a figure which shows the hollow component which concerns on 3rd Embodiment, (a) is a disassembled perspective view, (b) is a partially-omission perspective view which shows only the part of resin for joining. ゲート位置を変更した場合の中空部品の一例を示す分解斜視図。The disassembled perspective view which shows an example of the hollow component at the time of changing a gate position. ゲート位置を変更する場合における接合用樹脂形状を示す一部省略斜視図。The partially abbreviated perspective view showing the resin shape for joining in the case of changing the gate position. 第４の実施形態に係る中空部品を示す図で、（ａ）は分解斜視図、（ｂ）は接合用樹脂の部分だけを示す一部省略斜視図。It is a figure which shows the hollow component which concerns on 4th Embodiment, (a) is a disassembled perspective view, (b) is a partially-omission perspective view which shows only the part of resin for joining. 第１の実施形態の変形例を示す図。The figure which shows the modification of 1st Embodiment. 第５の実施形態に係る中空部品を示す図で、（ａ）は分解斜視図、（ｂ）は接合用樹脂の部分だけを示す一部省略斜視図、（ｃ）は外観斜視図。It is a figure which shows the hollow component which concerns on 5th Embodiment, (a) is a disassembled perspective view, (b) is a partially-omission perspective view which shows only the part of joining resin, (c) is an external appearance perspective view.

＜第１の実施形態＞
以下、本発明を適用し得る第１の実施の形態を図１乃至図４を用いて説明する。図１は、連通路が壁部に形成された第１の実施形態に係る中空部品を示す図で、（ａ）は分解斜視図、（ｂ）は接合用樹脂の部分だけを示す一部省略斜視図、（ｃ）は外観斜視図である。図２は、第１の実施形態に係る中空部品の接合前の状態を示す分解斜視図である。図３は、射出成形機と金型を示す模式図であり、図４は中空部品の製造工程を示すフローチャートである。 <First Embodiment>
Hereinafter, a first embodiment to which the present invention can be applied will be described with reference to FIGS. 1A and 1B are diagrams showing a hollow part according to the first embodiment in which a communication path is formed in a wall portion. FIG. 1A is an exploded perspective view, and FIG. 1B is a partially omitted view showing only a bonding resin portion. A perspective view and (c) are external perspective views. FIG. 2 is an exploded perspective view showing a state before joining of the hollow parts according to the first embodiment. FIG. 3 is a schematic diagram showing an injection molding machine and a mold, and FIG. 4 is a flowchart showing a manufacturing process of a hollow part.

図１（ａ）に示すように、第１の実施形態に係る中空部品１_１は、第１部品の一例である容器部品１０と、第２部品の一例である蓋部品２０と、第３部品の一例である注入部品３０と、の３部品が接合されて構成される接合部品である。容器部品１０は、中空形状の空間部である中空部１９を形成する壁部１１を有している。壁部１１は、４つの側壁１１ａ，１１ｂ，１１ｃ，１１ｄが一体成形されることにより（後述する蓋部品２０が接合される第１形状部４１の側から視て）矩形の形状に形成されている。また、壁部１１の側壁１１ａと側壁１１ｃとの内側には一体的に仕切り壁部１２が連結されていてもよい。この仕切り壁部１２により中空部１９を２つの部屋に仕切ることができる。本実施形態では、仕切り壁部１２により、中空部１９を２つの部屋に仕切る例について説明するがこれに限ることはなく、仕切り壁部１２がなくてもよいし、複数の仕切り壁部によって３つ以上の部屋に仕切ってもよい。 As shown in FIG. 1A, a hollow part 11 according to the _first embodiment includes a container part 10 that is an example of a first part, a lid part 20 that is an example of a second part, and a third part. This is a joined part formed by joining three parts, an injection part 30 as an example. The container part 10 has the wall part 11 which forms the hollow part 19 which is a hollow-shaped space part. The wall portion 11 is formed into a rectangular shape by viewing the four side walls 11a, 11b, 11c, and 11d as a single unit (as viewed from the first shape portion 41 to which a lid component 20 described later is joined). Yes. Moreover, the partition wall part 12 may be integrally connected inside the side wall 11a and the side wall 11c of the wall part 11. As shown in FIG. The partition wall 12 can partition the hollow portion 19 into two rooms. In this embodiment, an example in which the hollow portion 19 is partitioned into two rooms by the partition wall portion 12 will be described. However, the present invention is not limited to this, and the partition wall portion 12 may not be provided. It may be divided into two or more rooms.

一方、図２に示すように、容器部品１０の底部分には、底壁１４が壁部１１の端部に一体成形されており、底壁１４には、上記中空部１９に対応して貫通孔１５が穿設されている。この貫通孔１５は、後述の注入部品３０の貫通孔３１に対応した位置に配置されている。本実施形態においては、上記中空部１９が２つあるので、２つの部屋のそれぞれに対応して貫通孔１５が穿設されているがこれに限らず、仕切り壁部１２がなく、１つの部屋であれば貫通孔が１つであってもよい。また、容器部品（第１部品）には、底壁１４が形成されていなくてもよく、また一部分だけに設けられていてもよい。 On the other hand, as shown in FIG. 2, a bottom wall 14 is integrally formed at the end of the wall portion 11 at the bottom portion of the container part 10, and the bottom wall 14 penetrates corresponding to the hollow portion 19. A hole 15 is formed. The through hole 15 is disposed at a position corresponding to a through hole 31 of an injection component 30 described later. In the present embodiment, since there are two hollow portions 19, the through holes 15 are formed corresponding to the two rooms, but the present invention is not limited thereto, and there is no partition wall portion 12, and one room is provided. If so, there may be one through hole. Further, the bottom wall 14 may not be formed in the container part (first part), or may be provided only in a part.

また、壁部１１の内側で底壁１４の縁部分には、１周に亘って連通するように溝形状に形成された底溝１６が形成されている。そして、壁部１１の側壁１１ａ，１１ｃには底溝１６に連通し、かつ容器部品１０と蓋部品２０とが組合わされた場合に後述の蓋部品２０の蓋溝２２に連通する連通路となる連通溝１３が形成されている。本実施形態では、連通溝１３が２箇所に形成されている例を示すがこれに限らず、樹脂の充填状況に応じて、シミュレーションなどを用いて適宜決定する。 Further, a bottom groove 16 formed in a groove shape so as to communicate with the entire circumference of the edge portion of the bottom wall 14 inside the wall portion 11 is formed. The side walls 11a and 11c of the wall portion 11 communicate with the bottom groove 16, and when the container part 10 and the lid part 20 are combined, a communication path communicates with a lid groove 22 of the lid part 20 described later. A communication groove 13 is formed. In this embodiment, although the example in which the communication groove 13 is formed in two places is shown, it does not restrict to this but determines suitably using simulation etc. according to the filling condition of resin.

なお、容器部品１０の大きさは、例えば長手方向が５４ｍｍ、短手方向が２７ｍｍ、高さが２６ｍｍ、壁部１１、仕切り壁部１２、底壁１４の肉厚が１．６ｍｍである。また、底溝１６は、例えば幅が１．６ｍｍ、高さが１．５ｍｍであり、連通溝１３は、幅が１．８ｍｍ、高さが１ｍｍである。そして、容器部品１０の樹脂材料は、例えばＰＰＥ＋ＰＳ＋ＧＦ３５％である。 The container part 10 has a size of 54 mm in the longitudinal direction, 27 mm in the lateral direction, 26 mm in height, and 1.6 mm in the wall portion 11, the partition wall portion 12, and the bottom wall 14. The bottom groove 16 has a width of 1.6 mm and a height of 1.5 mm, for example, and the communication groove 13 has a width of 1.8 mm and a height of 1 mm. And the resin material of the container component 10 is PPE + PS + GF35%, for example.

上記蓋部品２０は、図１（ａ）及び図２に示すように、板状に形成されており、上記容器部品１０の一方側に接合される部材である。蓋部品２０の裏側には、容器部品１０と組合される状態で壁部１１の側壁１１ａ，１１ｂ，１１ｃ，及び１１ｄの端面に対向する部分に、１周に亘って連通するように溝形状に形成された蓋溝２２が形成されている。仕切り壁がある場合は、壁部１１の側壁１１ａ，１１ｂ，１１ｃ，１１ｄ，および仕切り壁部１２の端面に対向する部分に、１周に亘って連通するように溝形状に形成された蓋溝２２が形成されている。そして、蓋部品２０には、接合用樹脂を蓋溝２２に向けて射出可能にするゲート孔２１が、蓋部品２０の表側から蓋溝２２まで貫通するように穿設されている。 As shown in FIGS. 1A and 2, the lid part 20 is formed in a plate shape and is a member joined to one side of the container part 10. On the back side of the lid part 20, a groove shape is formed so as to communicate with the part facing the end surfaces of the side walls 11 a, 11 b, 11 c, and 11 d of the wall part 11 in a state combined with the container part 10. The formed lid groove 22 is formed. When there is a partition wall, a cover groove formed in a groove shape so as to communicate over the entire circumference of the side wall 11a, 11b, 11c, 11d of the wall portion 11 and the portion facing the end face of the partition wall portion 12. 22 is formed. A gate hole 21 is formed in the lid part 20 so as to allow the bonding resin to be injected toward the lid groove 22 so as to penetrate from the front side of the lid part 20 to the lid groove 22.

なお、蓋部品２０の大きさは、例えば長手方向が６０ｍｍ、短手方向が３０ｍｍ、肉厚が２．５ｍｍである。また、蓋溝２２は、例えば幅が１．６ｍｍ、高さが１．５ｍｍである。そして、蓋部品２０の樹脂材料は、容器部品１０と同じく、例えばＰＰＥ＋ＰＳ＋ＧＦ３５％である。 The size of the lid component 20 is, for example, 60 mm in the longitudinal direction, 30 mm in the lateral direction, and 2.5 mm in thickness. The lid groove 22 has a width of 1.6 mm and a height of 1.5 mm, for example. The resin material of the lid part 20 is, for example, PPE + PS + GF35%, as in the case of the container part 10.

一方、上記注入部品３０は、図１（ａ）及び図２に示すように、板状に形成されており、上記容器部品１０の他方側（蓋部品２０とは反対側）に接合される部材である。また、注入部品３０には、上記容器部品１０の底壁１４に穿設された貫通孔１５に対応した位置に、貫通孔３１が穿設されている。即ち、この貫通孔３１は、中空部１９の２つの部屋のそれぞれにあらかじめ貯蔵された流体を、中空部１９に圧力をかけることにより中空部品１_１の外部の適切な位置に流すために形成されている。 On the other hand, the injection component 30 is formed in a plate shape as shown in FIGS. 1A and 2, and is a member to be joined to the other side (the side opposite to the lid component 20) of the container component 10. It is. Further, the injection part 30 is provided with a through hole 31 at a position corresponding to the through hole 15 formed in the bottom wall 14 of the container part 10. That is, the through hole 31, the pre-stored fluid to each of the two chambers of the hollow portion 19 is formed to flow in a proper position of the hollow part 1 ₁ of the outside by applying a pressure to the hollow portion 19 ing.

なお、注入部品３０の大きさは、例えば長手方向が５４ｍｍ、短手方向が２７ｍｍ、肉厚が６ｍｍである。そして、注入部品３０の樹脂材料は、容器部品１０及び蓋部品２０と同じく、例えばＰＰＥ＋ＰＳ＋ＧＦ３５％である。 The size of the injection component 30 is, for example, 54 mm in the longitudinal direction, 27 mm in the lateral direction, and 6 mm in thickness. And the resin material of the injection | pouring component 30 is PPE + PS + GF35% similarly to the container component 10 and the lid | cover component 20, for example.

次に射出成形機１００及び金型２００の構成について説明する。図３に示すように、金型２００は、中空部品１_１をキャビティに挿入してセットする固定側金型２０１と、その固定側金型２０１に合わさってキャビティを閉塞する可動側金型２０２とを有している。一方、射出成形機１００には、固定側金型２０１が固定される架台１０５と、可動側金型２０２が固定される可動台１０６と、可動台１０６を架台１０５に対して可動させるためのタイバー１０７とを有している。また、射出成形機１００は、射出時の圧力を例えば１８０ｔで発生可能な射出装置１０１と、接合用樹脂の材料をセットして供給するホッパ１０２と、射出装置１０１からの圧力によりホッパ１０２の接合用樹脂を先端から射出するノズル１０３とを有している。これら射出装置１０１、ホッパ１０２、ノズル１０３などによって射出ユニットが構成されている。なお、可動台１０６及び可動側金型２０２にはノズル１０３が挿入可能な孔（不図示）が形成されており、ノズル１０３の先端は上記ゲート孔２１に到達するように移動されて、ノズル１０３から接合用樹脂の射出が行われる。 Next, the configuration of the injection molding machine 100 and the mold 200 will be described. As shown in FIG. 3, the mold 200 includes a stationary die 201 to be set by inserting a hollow part 1 ₁ in the cavity, the movable mold 202 for closing the cavity together on the fixed mold 201 have. On the other hand, the injection molding machine 100 includes a gantry 105 to which the fixed mold 201 is fixed, a movable table 106 to which the movable mold 202 is fixed, and a tie bar for moving the movable table 106 with respect to the gantry 105. 107. The injection molding machine 100 also includes an injection device 101 that can generate a pressure at the time of injection at, for example, 180 t, a hopper 102 that sets and supplies a bonding resin material, and a hopper 102 that is joined by pressure from the injection device 101. And a nozzle 103 for injecting resin for use from the tip. These injection device 101, hopper 102, nozzle 103, and the like constitute an injection unit. Note that a hole (not shown) into which the nozzle 103 can be inserted is formed in the movable base 106 and the movable side mold 202, and the tip of the nozzle 103 is moved so as to reach the gate hole 21. The joining resin is injected.

なお、このように構成された射出成形機１００は、一般的な射出ユニットの大きさであり、中空部品１_１の大きさでは、例えば２本以上のノズルを並列的に配置して、２箇所以上から中空部品１_１に接合用樹脂を射出することが難しい。また、架台１０５及び固定側金型２０１の側に射出ユニットを設けると射出成形機１００が大型になると共にコストが増大するため、好ましくない。そのため、本実施形態では、接合用樹脂の射出を１箇所から行うものである。 Note that such an injection molding machine 100 constructed as above, the magnitude of the common injection unit, the hollow part 1 ₁ of the size, for example by arranging two or more nozzles in parallel, two places it is difficult to emit the adhesive resin to the hollow part 1 ₁ from above. In addition, providing an injection unit on the side of the gantry 105 and the fixed mold 201 is not preferable because the injection molding machine 100 becomes large and costs increase. Therefore, in this embodiment, injection of the bonding resin is performed from one place.

また、図３では、射出成形機１００のノズル１０３から接合用樹脂の射出をする例を示したが、これに限ることはない。簡易的な樹脂注入装置を用いることもできる。具体的には、簡易的な樹脂注入装置のノズルをゲート孔２１に当接させて、接合用樹脂をノズルから注入してもよい。 3 shows an example in which the bonding resin is injected from the nozzle 103 of the injection molding machine 100. However, the present invention is not limited to this. A simple resin injection device can also be used. Specifically, the bonding resin may be injected from the nozzle by bringing a nozzle of a simple resin injection device into contact with the gate hole 21.

続いて、中空部品１_１の製造工程について説明する。図４に示すように、まず、容器部品用の金型に樹脂を射出して容器部品１０を形成する（Ｓ１）（第１部品形成工程）。この容器部品用の金型には、壁部１１、仕切り壁部１２、底壁１４等の型が形成されていると共に、貫通孔１５、底溝１６、連通溝１３の型が形成されていて、つまり容器部品１０を形成する際には底溝１６及び連通溝１３も同時に形成される。 The following describes a hollow part 1 ₁ of the manufacturing process. As shown in FIG. 4, first, resin is injected into a container part mold to form a container part 10 (S1) (first part forming step). The mold for the container part is formed with molds such as a wall portion 11, a partition wall portion 12, a bottom wall 14, and the like, as well as molds of a through hole 15, a bottom groove 16, and a communication groove 13. That is, when the container part 10 is formed, the bottom groove 16 and the communication groove 13 are also formed at the same time.

次に、蓋部品用の金型に樹脂を射出して蓋部品２０を形成する（Ｓ２）（第２部品形成工程）。この蓋部品用の金型には、ゲート孔２１、蓋溝２２の型が形成されており、つまり蓋部品２０を形成する際にはゲート孔２１、蓋溝２２も同時に形成される。さらに、注入部品用の金型に樹脂を射出して注入部品３０を形成する（Ｓ３）（第３部品形成工程）。この注入部材用の金型には、貫通孔３１の型が形成されており、つまり注入部品３０を形成する際には貫通孔３１も同時に形成される。 Next, resin is injected into the mold for the lid component to form the lid component 20 (S2) (second component forming step). The mold for the lid part is formed with the gate hole 21 and the lid groove 22, that is, when the lid part 20 is formed, the gate hole 21 and the lid groove 22 are also formed at the same time. Further, the injection part 30 is formed by injecting resin into a mold for the injection part (S3) (third part formation step). In the mold for the injection member, a mold for the through hole 31 is formed, that is, when the injection component 30 is formed, the through hole 31 is also formed at the same time.

なお、容器部品１０、蓋部品２０、注入部品３０の形成は、それぞれ違う場所で独立して行われ、特に工程上の順序はどのような順序でもよい。また、１つの金型で、容器部品１０、蓋部品２０、注入部品３０のキャビティを有しているものを用い、いわゆるファミリー成形により製造してもよい。 In addition, formation of the container part 10, the lid | cover part 20, and the injection | pouring part 30 is independently performed in a respectively different place, and especially the order on a process may be what order. Moreover, you may manufacture by what is called a family shaping | molding using what has the cavity of the container component 10, the lid | cover component 20, and the injection | pouring component 30 by one metal mold | die.

次に、注入部品３０、容器部品１０、蓋部品２０を、多関節ロボットやそれ以外の搬送手段などを用いて、接合用の金型である上記金型２００の固定側金型２０１に順番にセット（インサート）する（Ｓ４）（インサート工程）。その後、可動側金型２０２を移動してキャビティを閉じると、注入部品３０、容器部品１０、蓋部品２０が組立てられた状態となり、その状態でノズル１０３からゲート孔２１に接合用樹脂を射出する（Ｓ５）（充填工程）。これにより、ゲート孔２１から蓋溝２２に接合用樹脂が流れ、さらに固定側金型２０１によって塞がれた連通溝１３に流れ、底溝１６に流れ、これらの各溝に接合用樹脂が導通されて充填される。接合用樹脂が充填された後は、例えば５０ＭＰａで保圧を行い（保圧工程）、その後、冷却して（冷却工程）、図１（ａ）及び（ｂ）に示すように、接合用樹脂形状４０が形成される。 Next, the injection component 30, the container component 10, and the lid component 20 are sequentially placed on the fixed mold 201 of the mold 200, which is a mold for joining, using an articulated robot or other conveying means. Set (insert) (S4) (insert step). Thereafter, when the movable mold 202 is moved and the cavity is closed, the injection part 30, the container part 10, and the lid part 20 are assembled, and in this state, the bonding resin is injected from the nozzle 103 into the gate hole 21. (S5) (filling step). As a result, the bonding resin flows from the gate hole 21 to the lid groove 22, further flows to the communication groove 13 closed by the stationary mold 201, flows to the bottom groove 16, and the bonding resin is conducted to each of these grooves. To be filled. After the bonding resin is filled, for example, holding pressure is performed at 50 MPa (pressure holding step), and then cooled (cooling step), as shown in FIGS. 1 (a) and 1 (b). A shape 40 is formed.

接合用樹脂形状４０は、第１形状部４１、第２形状部４２、第３形状部４３を含む。第１形状部は、蓋部品２０と壁部１１との間に、接合用樹脂により形成される。つまり、第１形状部は、壁部１１の端面と蓋部品２０の蓋溝２２との間に形成される。仕切り壁部１２がある場合は、壁部１１および仕切り壁部１２の端面と蓋部品２０の蓋溝２２との間に形成される。第２形状部４２は、壁部１１と注入部品３０との間に、接合用樹脂により形成される。つまり、第２形状部４２は、底溝１６と注入部品３０の内面との間に形成される。そして、第１形状部４１と第２形状部４２とをつなぐ連通部である第３形状部４３が壁部１２の連通溝１３に形成される。第１形状部は、蓋部品２０の内部を通って容器部品１０とは反対側まで抜ける凸部４４を有する。この接合用樹脂形状４０によって、第３部品である注入部品３０、第１部品である容器部品１０、第２部品である蓋部品２０が一体に接合され、図１（ｃ）に示す中空部品１_１が構成される。そして、金型２００を開くことで、一体化された中空部品１_１を金型２００から取り出すことができる（Ｓ６）。 The bonding resin shape 40 includes a first shape portion 41, a second shape portion 42, and a third shape portion 43. The first shape portion is formed between the lid component 20 and the wall portion 11 by a bonding resin. That is, the first shape portion is formed between the end surface of the wall portion 11 and the lid groove 22 of the lid component 20. When the partition wall portion 12 is present, the partition wall portion 12 is formed between the end surface of the wall portion 11 and the partition wall portion 12 and the lid groove 22 of the lid component 20. The second shape portion 42 is formed of a bonding resin between the wall portion 11 and the injection component 30. That is, the second shape portion 42 is formed between the bottom groove 16 and the inner surface of the injection component 30. A third shape portion 43 that is a communication portion that connects the first shape portion 41 and the second shape portion 42 is formed in the communication groove 13 of the wall portion 12. The first shape part has a convex part 44 that passes through the inside of the lid part 20 to the side opposite to the container part 10. By this joining resin shape 40, the injection part 30 as the third part, the container part 10 as the first part, and the lid part 20 as the second part are integrally joined, and the hollow part 1 shown in FIG. ₁ is configured. Then, by opening the mold 200 can be extracted integrated hollow part _{1 1} from the mold 200 (S6).

なお、本実施形態では、接合用の金型を容器部品１０、蓋部品２０、注入部品３０の金型とは別に準備して用いている。しかしながら、固定側金型２０１には、注入部品３０が最も下側にインサートされるので、注入部品用の金型を用いてもよい。つまり、中空部品１_１を組み合わせたときに金型内で最も下側に配置される部品の金型を接合用の金型として用いてもよい。また、ファミリー成形により１つの金型で容器部品１０、蓋部品２０、注入部品３０を製造した場合は、中空部品１_１を金型内でインサートしたときに金型の最も深い位置に配置される部品のキャビティを接合用のキャビティとして用いてもよい。また、各部品の金型（ファミリー成形を含む）を各部品の製造と部品の接合とで流用する際、例えば可動側金型に各部品をインサートする場合は、固定側金型を接合用の金型に変更する必要がある。反対に例えば固定側金型にインサートする場合は、可動側金型を接合用の金型に変更する必要がある。金型の変更は、手動でもよいし、ＤＳＩでもよいし、その他の方法でもよい。 In this embodiment, a joining mold is prepared and used separately from the molds of the container part 10, the lid part 20, and the injection part 30. However, since the injection part 30 is inserted in the lowermost side in the fixed mold 201, a mold for the injection part may be used. That may be using a mold of the part to be arranged at the bottom side in the mold when combined with hollow part 1 ₁ as a mold for the bonding. Further, the container part 10 in one mold by a family molding, the cover part 20, when manufactured infusion part 30 is disposed at the deepest position of the mold when the hollow part 1 ₁ is insert in the mold Part cavities may be used as bonding cavities. In addition, when diverting each part mold (including family molding) for manufacturing each part and joining the parts, for example, when inserting each part into the movable side mold, the fixed side mold is used for joining. It is necessary to change to a mold. On the other hand, for example, when inserting into a fixed mold, it is necessary to change the movable mold to a bonding mold. The mold may be changed manually, by DSI, or by other methods.

以上のように本実施形態では、１つのゲート孔２１から接合用樹脂を射出して中空部品１_１を一体に形成することができる。また、中空部品１_１を一体に形成する際、容器部品１０の外面全体に接合用樹脂を充填するのではなく、連通溝１３を介して第１形状部４１及び第２形状部４２を成形する。これにより、壁部１１の全体に射出圧力がかかることはなく、壁部１１の一部、即ち側壁１１ａ及び側壁１１ｃの一部にだけ射出圧力がかかる。このため、中空部１９を有する容器部品１０にかかる射出圧力を低減することができ、容器部品１０の変形、即ち中空部品１_１の変形を低減することができる。また、容器部品１０を窒素ガスで凍結したり水を入れて凍らせたりすることも不要であるため、容器部品１０の剛性を保持するための新たな設備導入や新たな工程を設けることが不要となり、コストアップの防止を図ることができる。 As described above, in the present embodiment, as described, it can be formed integrally with the hollow part 1 ₁ and the injection of the adhesive resin from one gate hole 21. In forming the hollow part 1 ₁ together, instead of filling the adhesive resin to the entire outer surface of the container part 10, forming the first shape portion 41 and the second shape portion 42 through the communication groove 13 . Thereby, the injection pressure is not applied to the entire wall portion 11, and the injection pressure is applied only to a part of the wall portion 11, that is, the side wall 11a and the side wall 11c. Therefore, it is possible to reduce the injection pressure applied to the container part 10 having a hollow portion 19, the deformation of the container part 10, that is, to reduce the deformation of the hollow part 1 _1. In addition, since it is not necessary to freeze the container part 10 with nitrogen gas or to freeze it with water, it is not necessary to introduce new equipment or provide a new process for maintaining the rigidity of the container part 10. Thus, it is possible to prevent an increase in cost.

＜第２の実施形態＞
次に上記第１の実施形態を一部変更した第２の実施形態について図５及び図６を用いて説明する。図５は、連通路が、壁部における仕切り壁の外側に対応する部分に形成された第２の実施形態に係る中空部品を示す図で、（ａ）は分解斜視図、（ｂ）は接合用樹脂の部分だけを示す一部省略斜視図である。 <Second Embodiment>
Next, a second embodiment obtained by partially changing the first embodiment will be described with reference to FIGS. FIGS. 5A and 5B are diagrams showing a hollow part according to the second embodiment in which the communication path is formed in a portion of the wall portion corresponding to the outside of the partition wall, where FIG. 5A is an exploded perspective view, and FIG. It is a partially-omission perspective view which shows only the resin part.

図５（ａ）に示すように、第２の実施形態に係る中空部品１_２は、連通溝１３を、壁部１１における仕切り壁部１２に連結される部分の外側に位置するように（即ち仕切り壁部１２の板厚を含む平面に重なる位置に）設けたものである。これにより、接合用樹脂をゲート孔２１から射出して充填すると、図５（ａ）及び図５（ｂ）に示すように、接合用樹脂形状４０において、仕切り壁部１２の外側に位置する部分に、第１形状部４１と第２形状部４２とを連通する第３形状部４３が形成される。この際、射出圧力は、仕切り壁部１２によって支持されるので、仕切り壁部１２が補強部として機能して壁部１１の変形が抑えられ、中空部品１_２の変形が低減される。 As shown in FIG. 5 (a), the hollow part 1 ₂ of the second embodiment, the communication groove 13, so as to be positioned outside the portion coupled to the partition wall 12 in the wall portion 11 (i.e. It is provided at a position overlapping a plane including the plate thickness of the partition wall portion 12. Thus, when the bonding resin is injected from the gate hole 21 and filled, as shown in FIGS. 5A and 5B, the portion located outside the partition wall portion 12 in the bonding resin shape 40. In addition, a third shape portion 43 that connects the first shape portion 41 and the second shape portion 42 is formed. At this time, injection pressure, because they are supported by the partition wall portion 12, deformation of the wall portion 11 partition wall 12 functions as a reinforcing portion is suppressed, the deformation of the hollow part 1 ₂ is reduced.

なお、これ以外の構成、製造工程、効果などは第１の実施形態と同様であるので、その説明を省略する。 Since other configurations, manufacturing processes, effects, and the like are the same as those in the first embodiment, description thereof is omitted.

＜第３の実施形態＞
次に上記第１の実施形態及び第２の実施形態を一部変更した第３の実施形態について図６を用いて説明する。図６は、連通路が、矩形の形状の壁部における角部に形成された第３の実施形態に係る中空部品を示す図で、（ａ）は分解斜視図、（ｂ）は接合用樹脂の部分だけを示す一部省略斜視図である。 <Third Embodiment>
Next, a third embodiment in which the first embodiment and the second embodiment are partially changed will be described with reference to FIG. 6A and 6B are diagrams showing a hollow part according to the third embodiment in which a communication path is formed at a corner portion of a rectangular wall portion. FIG. 6A is an exploded perspective view, and FIG. 6B is a bonding resin. It is a partially-omission perspective view which shows only the part.

図６（ａ）に示すように、第３の実施形態に係る中空部品１_３は、連通溝１３を、壁部１１における矩形上の角部１１Ｒに位置するように（即ち側壁１１ａ及び側壁１１ｄ、側壁１１ｃ及び側壁１１ｄの両板厚を含む平面が交差する位置に）設けたものである。これにより、接合用樹脂をゲート孔２１から射出して充填すると、図６（ａ）及び図６（ｂ）に示すように、接合用樹脂形状４０において、壁部１１の角部１１Ｒに位置する部分に、第１形状部４１と第２形状部４２とを連通する第３形状部４３が形成される。この際、射出圧力は、壁部１１における側壁１１ａ及び側壁１１ｄ、或いは側壁１１ｃ及び側壁１１ｄに分散することによって支持されるので、壁部１１の変形が抑えられ、中空部品１_３の変形が低減される。 As shown in FIG. 6A, in the hollow part 13 according to the _third embodiment, the communication groove 13 is positioned at a rectangular corner 11R of the wall 11 (that is, the side wall 11a and the side wall 11d). , Provided at a position where planes including both plate thicknesses of the side wall 11c and the side wall 11d intersect. Thus, when the bonding resin is injected from the gate hole 21 and filled, the bonding resin shape 40 is positioned at the corner 11R of the wall 11 as shown in FIGS. A third shape portion 43 that communicates the first shape portion 41 and the second shape portion 42 is formed in the portion. At this time, injection pressure, the side walls 11a and the side wall 11d in the wall section 11, or because they are supported by dispersing the sidewalls 11c and side walls 11d, deformation of the wall portion 11 is suppressed, the deformation of the hollow part 1 ₃ is reduced Is done.

なお、これ以外の構成、製造工程、効果などは第１及び第２の実施形態と同様であるので、その説明を省略する。 Since other configurations, manufacturing processes, effects, and the like are the same as those in the first and second embodiments, the description thereof is omitted.

＜第１乃至第３の実施形態の比較＞
ついで、上述した第１乃至第３の実施形態と比較例における射出圧力による容器部品１０の変形量及びその評価について説明する。下記の表１に、第１乃至第３の実施形態と比較例における変形量及び評価を一覧で示す。なお、評価は、変形量が１ｍｍ以下であれば○、１〜２ｍｍであれば△、それ以上であれば×とした。また、比較例は、容器部品１０、蓋部品２０、注入部品３０の３つの部品の外面を樹脂により覆って一体化して中空部品を製造した例である。 <Comparison of the first to third embodiments>
Next, the deformation amount of the container component 10 due to the injection pressure and the evaluation thereof in the first to third embodiments and the comparative example described above will be described. Table 1 below shows a list of deformation amounts and evaluations in the first to third embodiments and the comparative example. In addition, the evaluation was ◯ if the deformation amount was 1 mm or less, Δ if it was 1 to 2 mm, and x if it was more than that. Further, the comparative example is an example in which a hollow part is manufactured by covering and integrating the outer surfaces of the three parts of the container part 10, the lid part 20, and the injection part 30 with resin.

上記比較例のように全体を樹脂で覆うように射出すると、射出圧力によって大きく変形した。一方、第１の実施形態のように容器部品１０の壁部１１に連通溝１３を形成した場合は、変形量を大幅に低減することができた。さらに、第２の実施形態のように連通溝１３を仕切り壁部１２の外側に位置するように形成した場合は、第１の実施形態よりも変形量を低減することができた。また、第３の実施形態のように連通溝１３を壁部１１の角部１１Ｒに位置するように形成した場合も、第１の実施形態よりも変形量を低減することができた。変形量の値は、第１の実施形態、第３の実施形態、第２の実施形態の順に小さくなった。 When it was injected so as to cover the whole with resin as in the comparative example, it was greatly deformed by the injection pressure. On the other hand, when the communication groove 13 is formed in the wall portion 11 of the container part 10 as in the first embodiment, the amount of deformation can be significantly reduced. Furthermore, when the communication groove 13 is formed so as to be located outside the partition wall portion 12 as in the second embodiment, the deformation amount can be reduced as compared with the first embodiment. Further, when the communication groove 13 is formed so as to be positioned at the corner portion 11R of the wall portion 11 as in the third embodiment, the deformation amount can be reduced as compared with the first embodiment. The value of the deformation amount decreased in the order of the first embodiment, the third embodiment, and the second embodiment.

＜ゲート位置の比較＞
次に、ゲート位置を中空部品１の短手方向に対して変更した場合における充填完了時の射出圧力及びその評価について説明する。図７はゲート位置を変更した場合の中空部品の一例を示す分解斜視図であり、図８はゲート位置を変更する場合における接合用樹脂形状を示す一部省略斜視図である。なお、このゲート位置の変更の比較は、第２の実施の形態と同様に、仕切り壁部１２の外側に連通溝１３を形成したもので行った。 <Comparison of gate positions>
Next, the injection pressure at the completion of filling when the gate position is changed with respect to the short direction of the hollow part 1 and the evaluation thereof will be described. FIG. 7 is an exploded perspective view showing an example of a hollow part when the gate position is changed, and FIG. 8 is a partially omitted perspective view showing a bonding resin shape when the gate position is changed. In addition, the comparison of the change of the gate position was performed by forming the communication groove 13 on the outside of the partition wall portion 12 as in the second embodiment.

図７に示す中空部品１_４では、接合用樹脂を射出するゲート孔２１の位置を、仕切り壁部１２の端面に対向する部分における短手方向の中央ではなく（図５参照）、連通溝１３の近くに設けた。容器部品１０と蓋部品２０とを接合する第１形状部４１だけを考えれば、その中央（中心）となる位置にゲート孔２１を設けることが充填バランスとしてよく、その結果、最も射出圧力が低くなるのが一般的である。しかし、第１形状部４１だけでなく第２形状部４２があり、それが壁部１１に形成された連通溝１３、即ち短手方向の端部にある連通溝１３で連通している場合は、充填バランスが異なる。つまり、連通溝１３にゲート孔２１を近づける方が、第１形状部４１と第２形状部４２との充填時間の差が小さくなるため、充填バランスがよくなり、充填完了時の射出圧力は低くなる。 In the hollow part 1 ₄ shown in FIG. 7, the position of the gate hole 21 for injecting the adhesive resin, rather than the center in the lateral direction at a portion facing the end surface of the partition wall portion 12 (see FIG. 5), the communication groove 13 Provided near. Considering only the first shape part 41 that joins the container part 10 and the lid part 20, the gate hole 21 may be provided at the center (center) position as a filling balance. As a result, the injection pressure is the lowest. It is common to become. However, when there is not only the first shape portion 41 but also the second shape portion 42, which communicates with the communication groove 13 formed in the wall portion 11, that is, the communication groove 13 at the end in the short direction. The filling balance is different. That is, the closer the gate hole 21 is to the communication groove 13, the smaller the difference in filling time between the first shape portion 41 and the second shape portion 42, the better the filling balance, and the lower the injection pressure when filling is completed. Become.

今回のゲート位置の比較を行うに際し、図８に示すように、仕切り壁部１２の上にあって短手方向に端部から中央までを５分割して６か所の位置Ｐ１〜Ｐ６を設定した。即ち、位置Ｐ１〜Ｐ６は、仕切り壁部１２の上の短手方向の直線ｘと、短手方向の端部と中央との間を５分割した平行な長手方向の直線ｙ１〜ｙ６と、の交点である。そして、下記の表２に、位置Ｐ１〜Ｐ６、連通溝１３からゲート孔２１までの距離、及び評価を一覧で示す。なお、評価は、充填完了時の接合用樹脂にかかる圧力が５０ＭＰａ以下であれば○、５０〜６０ＭＰａであれば△、それ以上であれば×とした。勿論であるが、充填時における他の条件は同じ条件とした。 When comparing the gate positions this time, as shown in FIG. 8, six positions P1 to P6 are set by dividing into 5 sections from the end to the center on the partition wall section 12 as shown in FIG. did. That is, the positions P1 to P6 are a straight line x in the short direction on the partition wall portion 12 and a parallel long straight line y1 to y6 obtained by dividing the end portion and the center in the short direction into five. It is an intersection. Table 2 below lists the positions P1 to P6, the distance from the communication groove 13 to the gate hole 21, and the evaluation. In addition, evaluation was made ◯ if the pressure applied to the bonding resin at the completion of filling was 50 MPa or less, Δ if it was 50-60 MPa, and x if it was more. Of course, other conditions during filling were the same.

これらの結果から、ゲート孔２１の位置は、連通溝１３に近いほど、接合用樹脂にかかる充填完了時の射出圧力は小さくなった。つまり、接合用樹脂にかかる射出圧力による容器部品１０の変形量は、ゲート孔２１の位置が連通溝１３に近いほど小さいという結果となった。また、上記結果から接合用樹脂にかかる圧力を５０ＭＰａ以下にするためには、第１形状部４１と連通溝１３との合流位置から短手方向に８ｍｍ以内にゲート孔２１を設けることが望ましいという結果になった。即ち、容器部品１０の短手方向の長さは上述のように２７ｍｍであるので、ゲート孔２１は、矩形の形状における短手方向の距離が、連通溝１３がある側から短手方向の全体距離の１／３以下の距離に位置することが好ましいといえる。これにより、充填時の射出圧力を低減でき、射出圧力による変形を低減することができる。 From these results, as the position of the gate hole 21 is closer to the communication groove 13, the injection pressure at the completion of filling applied to the bonding resin is smaller. In other words, the deformation amount of the container part 10 due to the injection pressure applied to the bonding resin is smaller as the position of the gate hole 21 is closer to the communication groove 13. Further, from the above results, in order to reduce the pressure applied to the bonding resin to 50 MPa or less, it is desirable to provide the gate hole 21 within 8 mm in the short direction from the joining position of the first shape portion 41 and the communication groove 13. The result was. That is, since the length of the container part 10 in the short direction is 27 mm as described above, the gate hole 21 has a rectangular shape with a short distance in the short direction from the side where the communication groove 13 is located. It can be said that it is preferable to be located at a distance of 1/3 or less of the distance. Thereby, the injection pressure at the time of filling can be reduced, and deformation due to the injection pressure can be reduced.

＜第４の実施形態＞
次に上記第１の実施形態及び第２の実施形態及び第３の実施形態を一部変更した第４の実施形態について図９を用いて説明する。図９は、蓋溝２２、底溝１６から固定側金型、可動側金型への貫通孔１７を設けた第４の実施形態に係る中空部品を示す図で、（ａ）は分解斜視図、（ｂ）は接合用樹脂の部分だけを示す一部省略斜視図である。 <Fourth Embodiment>
Next, a fourth embodiment in which the first embodiment, the second embodiment, and the third embodiment are partially changed will be described with reference to FIG. FIG. 9 is a view showing a hollow part according to the fourth embodiment in which through holes 17 are provided from the cover groove 22 and the bottom groove 16 to the fixed side mold and the movable side mold, and (a) is an exploded perspective view. , (B) is a partially omitted perspective view showing only a portion of the bonding resin.

図９（ａ）に示すように、第４の実施形態に係る中空部品１₅は、蓋部品２０の裏側に１周に亘って連通するように溝形状に形成された蓋溝２２の一部に可動側金型２０２まで通じる貫通孔２３を設けた。同様に注入部品３０と第２形状部４２の一部にも固定側金型２０１まで通じる貫通孔３３を設けた。 As shown in FIG. 9 (a), the hollow part 1 ₅ of the fourth embodiment, a portion of Futamizo 22 formed in a groove shape so as to communicate over one round to the back side of the lid part 20 Is provided with a through hole 23 leading to the movable mold 202. Similarly, the injection component 30 and a part of the second shape portion 42 are provided with a through-hole 33 that leads to the stationary mold 201.

ゲート孔２１から充填される接合用樹脂は、蓋溝２２に流れ、さらに固定側金型２０１によって塞がれた連通溝１３に流れ、底溝１６に流れることで接合が行われる。仮に上記貫通孔２３、３３が無い場合には、蓋溝２２、連通溝１３、底溝１６に接合用樹脂が充填される過程で、各溝内に存在していた空気は行き場を失い最終充填部に追いやられる。そして、一部は圧縮され、また一部は微小隙間から滲みだすようにして排出されることで最終充填部までの完全充填が行われるが、末端までの単純な流動よりも大きな圧力を必要とする。 The bonding resin filled from the gate hole 21 flows into the cover groove 22, further flows into the communication groove 13 closed by the stationary mold 201, and flows into the bottom groove 16 to perform bonding. If the through holes 23 and 33 are not provided, the air that was present in each groove loses its place in the process of filling the lid groove 22, the communication groove 13, and the bottom groove 16 with the bonding resin. Driven to the department. Then, a part is compressed, and a part is discharged so as to ooze out from the minute gap, so that the complete filling up to the final filling part is performed, but a pressure larger than a simple flow to the end is required. To do.

本実施形態においては、貫通孔２３、３３を設けたので、金型内の排出回路を通じて各溝部にあった空気を積極的に外へ排出することができる。このため、充填過程において各溝内で圧縮される空気量を減らすことが可能となるため、最終充填までの流動を容易に行うことができ、流動圧力を低減することができるようになる。これにより、第１形状部は、ゲートにより形成される、蓋部品２０の内部を通って容器部品１０とは反対側まで貫通する凸部とは別に、蓋部品２０の内部を通って容器部品１０とは反対側まで貫通する凸部を一つあるいは複数有することになる。さらに、第２形状部にも、注入部品３０の内部を通って容器部品１０とは反対側まで貫通する凸部を一つあるいは複数有することになる。 In this embodiment, since the through holes 23 and 33 are provided, the air in each groove can be positively discharged to the outside through the discharge circuit in the mold. For this reason, since it becomes possible to reduce the amount of air compressed in each groove in the filling process, the flow up to the final filling can be easily performed, and the flow pressure can be reduced. As a result, the first shape portion passes through the inside of the lid part 20 and passes through the inside of the lid part 20 through the inside of the lid part 20 through the inside of the lid part 20 to the opposite side of the container part 10. One or a plurality of convex portions penetrating to the opposite side to the side. Furthermore, the second shape portion also has one or a plurality of convex portions that pass through the inside of the injection component 30 to the side opposite to the container component 10.

＜ガス抜き形態による充填性の比較＞
第１の実施形態と第４の実施形態と第１の実施形態の変形例とにおける充填性評価について説明する。下記の表３に、第１の実施形態と第４の実施形態と第１の実施形態の変形例とにおけるガス抜き形態の違いによる充填性の評価を一覧で示す。第１の実施形態の変形例として中空部品１_６は、図１０に示すように、第１の実施形態に対し蓋部品２０の容器部品１０側の接合面の一部にガス抜き溝２８を、容器部品１０の注入部品３０側の接合面の一部にガス抜き溝１８を、それぞれ設けた例である。それぞれ溝は、深さ０．０２ｍｍで設けた。評価は接合樹脂溝への充填度合いで行い、流動末端まで流せれば○、末端まで流した上で流動圧力を低くできた場合は◎とした。 <Comparison of fillability by degassing configuration>
The fillability evaluation in the first embodiment, the fourth embodiment, and the modification of the first embodiment will be described. Table 3 below shows a list of evaluations of filling properties according to differences in the degassing mode in the first embodiment, the fourth embodiment, and the modified example of the first embodiment. As a modification of the first embodiment, as shown in FIG. 10, the hollow part ₁₆ has a gas vent groove 28 in a part of the joint surface on the container part 10 side of the lid part 20 with respect to the first embodiment. This is an example in which a gas vent groove 18 is provided in a part of the joint surface of the container part 10 on the injection part 30 side. Each groove was provided with a depth of 0.02 mm. The evaluation was performed based on the degree of filling of the bonding resin groove, and was evaluated as ◯ when it was allowed to flow to the flow end, and ◎ when the flow pressure could be lowered after flowing to the end.

上記表３に示すように、第１の実施形態に対してガス抜き溝１８，２８を設けた変形例では、充填性向上効果は得られなかった。これは接合のために容器部品１０、蓋部品２０、注入部品３０を押し付けたことでガス抜き溝１８，２８も押しつぶされガス抜き効果が得られなかったことによる。一方、接合樹脂溝とつながる貫通孔２３，３３を設けた第４の実施形態では、圧縮方向に貫通孔２３，３３を形成しているため、押しつぶされることはなく、充填性を向上させることができた。 As shown in Table 3 above, in the modified example in which the gas vent grooves 18 and 28 were provided in the first embodiment, the effect of improving the filling property was not obtained. This is because the degassing grooves 18 and 28 are crushed by pressing the container part 10, the lid part 20, and the injection part 30 for joining, and the degassing effect is not obtained. On the other hand, in the fourth embodiment in which the through holes 23 and 33 connected to the bonding resin grooves are provided, the through holes 23 and 33 are formed in the compression direction, so that they are not crushed and the filling property can be improved. did it.

＜第５の実施形態＞
図１１は、第５の実施形態として、中空部品１_７をインクジェットプリンターに用いられるインクカートリッジに適用した例を示したものである。図１１に示す第５の実施形態おいて、図１に示す第１の実施形態と同じ機能を有する部分には同じ符号を付し、その説明を省略する。なお、注入部品３０は、容器部品１０の中に収容されるインクを吐出するためのヘッドである。また、インクカートリッジは、スポンジやインクを収容するために複数の部屋に区切る必要があり、そのために壁部１１の内側に連結される仕切り壁部１２及び仕切り壁部１２１が形成されている。第３形状部４３は、壁部１１における仕切り壁部１２に連結される部分の外側に配置している。これにより、中空の容器部品１０（第１部品）を変形させることなく、蓋部品２０（第２部品）、容器部品１０（第１部品）、及び注入部品３０（第３部品）の３部品を射出による接合用樹脂により、一体に接合させることが可能となる。 <Fifth Embodiment>
FIG. 11 shows an example in which the hollow part ₁₇ is applied to an ink cartridge used in an ink jet printer as a fifth embodiment. In the fifth embodiment shown in FIG. 11, parts having the same functions as those in the first embodiment shown in FIG. The injection component 30 is a head for ejecting ink stored in the container component 10. In addition, the ink cartridge needs to be partitioned into a plurality of rooms in order to accommodate sponges and ink. For this purpose, a partition wall 12 and a partition wall 121 connected to the inside of the wall 11 are formed. The third shape portion 43 is disposed outside the portion of the wall portion 11 that is connected to the partition wall portion 12. Thereby, without deforming the hollow container part 10 (first part), the three parts of the lid part 20 (second part), the container part 10 (first part), and the injection part 30 (third part) are formed. The joining resin by injection can be integrally joined.

なお、第５の実施形態においては、注入部品３０をヘッドとした中空部品１_７にインクを収容して、インクカートリッジを構成したものを説明したが、注入部品３０とは別体のヘッドを取付けて中空部品をインクタンクとして構成してもよい。即ち、例えばヘッドがプリンターに備えられ、注入部品３０に、プリンターに備えられたヘッドに取り付けるための取り付け機能が備えられているインクタンクであっても本発明を好適に用いることができる。 In the fifth embodiment, the ink cartridge is configured by containing ink in the hollow part ₁₇ having the injection part 30 as a head. However, a head separate from the injection part 30 is attached. The hollow part may be configured as an ink tank. That is, for example, the present invention can be suitably used even in an ink tank in which a head is provided in a printer and the injection component 30 is provided with an attachment function for attaching to the head provided in the printer.

＜他の実施形態の可能性＞
なお、第１乃至第５の実施形態においては、容器部品１０が中空部１９を有して中空部品１が液体を貯蔵する容器を構成したものを説明したが、これに限らず、３つ以上の部品を２箇所以上の形状部で接合されるものならば何でも本発明を適用可能である。また、容器を構成する場合であっても、液体に限らず、気体や紛体など、何れのものを容器内に貯蔵するものであっても構わない。 <Possibility of other embodiments>
In the first to fifth embodiments, the container part 10 has the hollow part 19 and the hollow part 1 constitutes the container for storing the liquid. However, the present invention is not limited to this. The present invention can be applied to any parts that can be joined at two or more shapes. Even when the container is configured, not only liquid but also gas or powder may be stored in the container.

また、第１乃至第５の実施形態においては、１箇所のゲート孔から接合用樹脂を射出して充填するものを説明したが、これに限らず、ゲート孔を２箇所以上設けてもよい。特に接合する部品の数が４つ以上あり、形状部が３箇所以上ある場合でも、そのうちの２箇所以上を連通路によって接合用樹脂を導通させて充填するものでも本発明を適用可能である。 In the first to fifth embodiments, the description has been given of the case where the bonding resin is injected and filled from one gate hole. However, the present invention is not limited to this, and two or more gate holes may be provided. In particular, even when the number of parts to be joined is four or more and there are three or more shape portions, the present invention can be applied to those in which two or more of them are filled with the joining resin through a communication path.

また、第１乃至第５の実施形態においては、蓋部品２０に蓋溝２２を形成して第１形状部４１を構成するものを説明したが、壁部１１や仕切り壁部１２の端面に溝を形成してもよく、また、それら両方に溝を形成してもよい。さらに、第１乃至第３の実施形態においては、容器部品１０に底溝１６を形成して第２形状部４２を構成するものを説明したが、注入部品３０に溝を形成してもよく、また、それら両方に溝を形成してもよい。 In the first to fifth embodiments, the lid part 20 is formed with the lid groove 22 to form the first shape part 41. However, the groove is formed on the end face of the wall part 11 or the partition wall part 12. Or grooves may be formed in both of them. In the first to third embodiments, the bottom groove 16 is formed in the container part 10 to form the second shape portion 42, but the groove may be formed in the injection part 30. Moreover, you may form a groove | channel in both of them.

また、第１乃至第５の実施形態においては、壁部１１に連通溝１３を形成して連通路を構成するものを説明したが、金型に溝を形成して連通路を構成してもよく、また、それら両方に溝を形成して連通路を構成してもよい。金型に溝を形成した場合は、接合用樹脂により形成される第３形状部４３が壁部１１の外面よりも突出することになるので、その突出部分を後から切削して外面が平らな中空容器となるように後工程を設けてもよい。 In the first to fifth embodiments, the communication groove 13 is formed in the wall portion 11 to configure the communication path. However, the communication path may be configured by forming a groove in the mold. Alternatively, the communication path may be formed by forming grooves in both of them. When the groove is formed in the mold, the third shape portion 43 formed of the bonding resin protrudes from the outer surface of the wall portion 11, so that the protruding portion is cut later and the outer surface is flat. You may provide a post process so that it may become a hollow container.

また、第１及び第４の実施形態では連通溝１３を仕切り壁部１２の外側と角部１１Ｒとの間に形成し、第２及び第５の実施形態では連通溝１３を仕切り壁部１２の外側に形成し、第３の実施形態では連通溝１３を角部１１Ｒに形成したものを説明した。しかしながら、これらの連通溝１３の配置は、特にその場所のみに形成する必要はなく、２つ以上の配置箇所の組合せ（連通溝１３は計４箇所以上）であってもよく、特に仕切り壁部１２の外側と角部１１Ｒとの両方に配置してもよい。このように２つ以上の配置箇所を組合せれば、射出圧力がより分散し、変形量のさらなる低減を望むことが可能である。また、連通溝１３を仕切り壁部１２の外側と角部１１Ｒとの間にあって２箇所以上形成してもよく、つまり連通溝１３の数は２つに限らず、数が多くなるほど射出圧力の分散効果が見込まれる。 In the first and fourth embodiments, the communication groove 13 is formed between the outside of the partition wall portion 12 and the corner portion 11R, and in the second and fifth embodiments, the communication groove 13 is formed on the partition wall portion 12. In the third embodiment, the communication groove 13 is formed in the corner portion 11R. However, the arrangement of these communication grooves 13 does not need to be formed only in that place, and may be a combination of two or more arrangement places (total of four or more communication grooves 13). You may arrange | position to both the outer side of 12 and corner | angular part 11R. Thus, if two or more arrangement locations are combined, the injection pressure can be further dispersed, and further reduction of the deformation amount can be desired. Further, the communication groove 13 may be formed between the outside of the partition wall portion 12 and the corner portion 11R, and two or more locations may be formed. That is, the number of the communication grooves 13 is not limited to two, and the dispersion of the injection pressure increases as the number increases. The effect is expected.

また、第１乃至第５の実施形態においては、容器部品１０の壁部１１が矩形の形状となるものを説明したが、これに限らず、円筒形状など、どのような形状であっても本発明を適用可能である。例えば特開平３−６７０５６号公報で示された樹脂製マニホルドのような形状であれば、円筒形状の外壁や円筒形状同士をつないだ接合部分に連通溝を形成することが考えられる。 In the first to fifth embodiments, the case where the wall portion 11 of the container part 10 has a rectangular shape has been described. However, the present invention is not limited to this, and any shape such as a cylindrical shape may be used. The invention can be applied. For example, in the case of a shape such as a resin manifold disclosed in Japanese Patent Laid-Open No. 3-67056, it is conceivable to form a communication groove in a joint portion connecting the cylindrical outer wall and the cylindrical shapes.

また、第１乃至第５の実施形態においては、容器部品１０、蓋部品２０、注入部品３０、接合用材料を例えばＰＰＥ＋ＰＳ＋ＧＦ３５％の樹脂で構成したものを説明したが、これに限らず、他の樹脂の種類であってもよい。他の樹脂としては、例えばＰＣ／ＡＢＳ、ＰＳ、ＨＩＰＳ等でも同様に用いることができる。 In the first to fifth embodiments, the container part 10, the lid part 20, the injection part 30, and the joining material made of, for example, PPE + PS + GF 35% resin have been described. The kind of resin may be sufficient. As other resins, for example, PC / ABS, PS, HIPS and the like can be used similarly.

１…中空部品（接合部品）：１０…容器部品（第１部品）：１１…壁部：１１Ｒ…角部：１２…仕切り壁部：１９…中空部（空間部）：２０…蓋部品（第２部品）：２１…ゲート孔：３０…注入部品（第３部品）：４０…接合用樹脂形状：４１…第１形状部：４２…第２形状部：４３…第３形状部：２００…金型：Ｓ１…第１部品形成工程：Ｓ２…第２部品形成工程：Ｓ３…第３部品形成工程：Ｓ４…インサート工程：Ｓ５…充填工程 DESCRIPTION OF SYMBOLS 1 ... Hollow part (joint part): 10 ... Container part (1st part): 11 ... Wall part: 11R ... Corner | angular part: 12 ... Partition wall part: 19 ... Hollow part (space part): 20 ... Cover part (1st) 2 parts): 21 ... gate hole: 30 ... injection part (third part): 40 ... bonding resin shape: 41 ... first shape part: 42 ... second shape part: 43 ... third shape part: 200 ... gold Mold: S1 ... 1st part formation process: S2 ... 2nd part formation process: S3 ... 3rd part formation process: S4 ... Insert process: S5 ... Filling process

Claims

A first part having a wall surrounding the space;
A second part;
A third part;
A first shape portion formed of a bonding resin between the second component and the wall portion;
A second shape portion formed of the bonding resin between the wall portion and the third component;
A third shape portion formed by the bonding resin that connects the first shape portion and the second shape portion;
Joined parts characterized by that.

The first shape portion has a convex portion that passes through the inside of the second component to the side opposite to the first component,
The joined part according to claim 1, wherein:

The first shape portion has a plurality of the convex portions,
The joining component according to claim 2, wherein

The second shape part has a convex part that passes through the inside of the third part to the opposite side to the first part,
The joining component according to any one of claims 1 to 3, wherein:

The second shape portion has a plurality of the convex portions,
The joined part according to claim 4, wherein

The first shape portion and the second shape portion are connected by a plurality of the third shape portions,
The joining component according to any one of claims 1 to 5, characterized in that:

The wall portion is formed in a rectangular shape as viewed from the first shape portion side.
The joining part according to claim 1, wherein the joining part is a member.

The first component has a partition wall portion connected to the inside of the wall portion so as to partition the space portion,
The third shape portion is disposed outside a portion of the wall portion connected to the partition wall portion.
The joined part according to claim 7, wherein:

The third shape portion is disposed at a corner of the rectangle in the wall portion,
The joined part according to claim 7, wherein:

The wall portion is formed in a rectangular shape when viewed from the first shape portion side,
The convex part is located at a distance of 1/3 or less of the entire distance in the short direction from the side where the third shape part is located in the short direction of the rectangle.
The joining component according to claim 2, wherein

A first part, a second part joined by a first shape part formed of a joining resin on one side of the first part, and a second part formed of the joining resin on the other side of the first part. An insert step of inserting a third part to be joined at the two-shaped portion into the mold;
The bonding resin is injected into the hole formed in the second component, and the first shape portion, the third shape portion connecting the first shape portion and the second shape portion, and the second shape portion A filling step of filling the resin,
The manufacturing method of the joining components characterized by the above-mentioned.

A first component forming step of forming the first component in the mold;
A second component forming step of forming the second component in the mold;
A third component forming step of forming the third component in the mold,
The manufacturing method of the joining component of Claim 11 characterized by the above-mentioned.

In the filling step, the first shape portion and a plurality of the third shape portions are used to fill the second shape portion with resin.
The manufacturing method of the joining component of Claim 11 characterized by the above-mentioned.

In the first component forming step, the first component is formed so as to have a wall portion surrounding the space portion and a communication path capable of forming the third shape portion in the wall portion.
The manufacturing method of the joining component of Claim 12 characterized by the above-mentioned.

In the first component forming step, the wall of the first component is formed to be rectangular.
The manufacturing method of the joining component of Claim 14 characterized by the above-mentioned.

In the first component forming step, the first component is formed so as to have a partition wall portion connected to the inside of the wall portion so as to partition the space portion, and the communication path is formed in the wall portion. Forming outside the portion connected to the partition wall,
The method for manufacturing a joined part according to claim 15.

In the first component forming step, the communication path is formed at the rectangular corner of the wall.
The method for manufacturing a joined part according to claim 15.

In the second component forming step, the hole is positioned such that the distance in the short direction of the rectangle is equal to or less than 1/3 of the total distance in the short direction from the side where the third shape portion is located. Form,
The method for manufacturing a joined part according to any one of claims 15 to 17, wherein:

The joining component according to any one of claims 1 to 10,
An ink accommodated in the space,
An ink tank characterized by that.

An ink tank according to claim 19,
A head for ejecting ink contained in the space portion,
An ink cartridge characterized by that.