JPS6353932B2 - - Google Patents
Info
- Publication number
- JPS6353932B2 JPS6353932B2 JP58225853A JP22585383A JPS6353932B2 JP S6353932 B2 JPS6353932 B2 JP S6353932B2 JP 58225853 A JP58225853 A JP 58225853A JP 22585383 A JP22585383 A JP 22585383A JP S6353932 B2 JPS6353932 B2 JP S6353932B2
- Authority
- JP
- Japan
- Prior art keywords
- molding
- wall
- joint
- molding surface
- molded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000465 moulding Methods 0.000 claims description 35
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0081—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor of objects with parts connected by a thin section, e.g. hinge, tear line
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は合成樹脂製容体たとえばビデオ或いは
オーデイオカセツト用ケース、その他の各種容体
の素体製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing synthetic resin containers, such as cases for video or audio cassettes, and other various containers.
従来、ビデオ或いはオーデイオカセツト用ケー
ス等は表側体と裏側体とに分割されていて、夫々
専用の上下の成形金型により別々に射出成型して
おり、そのため一つのケースを製作するために二
体の専用の成形金型と、二台の射出成形機を要
し、年々その需要の増加が見込まれているだけ
に、非生産的な製造法は早急に改善しなければな
らない。 Conventionally, cases for video or audio cassettes have been divided into a front side body and a back side body, each of which is injection molded separately using dedicated upper and lower molding molds. It requires a dedicated mold and two injection molding machines, and as demand is expected to increase year by year, the unproductive manufacturing method must be improved immediately.
加えて、上記カセツト用の別体の表側体と裏側
体では、両体が同一形状でないため、両体の数量
管理から始まつて、両体が混らぬよう仕分け管理
し、両体を間違いなく組合せて組立てなければな
らない製造後の諸問題をも含んでいる。 In addition, since the separate front and back bodies for the cassette mentioned above are not the same shape, it is necessary to manage the quantity of both bodies, sort them to avoid mixing them, and avoid misplacing the two bodies. It also includes various post-manufacturing problems that require multiple assembly.
本発明には叙上問題点を解決して、生産的であ
る製造法を提案し且つ製造後の諸問題をも併せて
一挙に解消したもので、斯る技術的課題を達成す
る構成を、一側縁の屈曲可能な連成辺を経て一体
構造状の表側体と裏側体からなる合成樹脂製容体
の素体製造方法において、一方の上記裏側体成形
面部と、両成形面部間に位置して且つ夫々に連成
辺成形部を経て連通していて、表側体、裏側体の
少なくともいずれかの連成側の一側壁をジヨイン
ト壁部として成形するジヨイント壁部成形面部と
で成形面を形成している上下の成形金型に、その
成形面に合成樹脂材を圧入して素体を一体成型す
ることを特徴とする。 The present invention solves the above-mentioned problems, proposes a productive manufacturing method, and also eliminates various problems after manufacturing at once, and has a configuration that achieves these technical problems. In a method for producing an element body of a synthetic resin container that is composed of a front side body and a back side body that are integrally structured through a bendable interconnected side of one side edge, one of the molded surface portions of the back side body and the molded surface portion located between the two molded surface portions. and a joint wall molding surface part that communicates with each other via a joint side molding part and molds at least one side wall of the connected side of the front side body and the back side body as a joint wall part, forming a molding surface. The main body is integrally molded by press-fitting a synthetic resin material into the molding surfaces of upper and lower molds.
以下本発明の実施の一例を説明する。 An example of implementing the present invention will be described below.
図面はビデオカセツト用ケースＢの製造法例を
示しており、その成型に採用した成形金型Ａは上
下に分割されている射出成形金型で、その成形面
ａを、一方の表側体成形面部ａ１と、他方の裏側
体成形面部ａ２と、両成形面部ａ１，ａ２間に位
置して且つ夫々連成辺成形部ａ３，ａ３を経て連
通しているジヨイント壁部成形面部ａ４とで形成
してある。 The drawing shows an example of the manufacturing method of case B for a video cassette, and the mold A used for molding the case is an injection mold that is divided into upper and lower parts, and its molding surface a is connected to one front body molding surface part a1. , the other back side body molding surface portion a2, and a joint wall molding surface portion a4 located between both molding surface portions a1 and a2 and communicating through interconnected side molding portions a3 and a3, respectively. .
表側体成形面部ａ１はケースＢにおける表側体
B1を、裏側体成形面部ａ２は裏側体B2を夫々成
型し得るように形成してある。 The front body molding surface part a1 is the front body in case B.
B 1 and the back side body molding surface portion a2 are formed so as to be able to mold the back side body B 2 respectively.
ジヨイント壁部成形面部ａ４は表側体B1、裏
側体B2の少なくともいずれかの連成側の一側壁
具体的には表側体B1における一側壁ｂ１をジヨ
イント壁部B3を成型し得るように形成してあり、
このジヨイント壁部成形面部ａ４と表側体および
裏側体両方成形面部ａ１，ａ２を連通している連
成辺成形部ａ３，ａ３は表側体B1と裏側体B2と
ジヨイント壁部B3を、各部を一体構造状に連成
する連成辺B4，B4から谷側に屈曲し得るように、
その連成辺B4，B4を屈曲可能な薄肉状に成型し
得るようにしてある。 The joint wall molding surface part a4 is one side wall of at least one of the connecting side of the front body B 1 and the back body B 2. Specifically, one side wall b1 of the front body B 1 is formed so that the joint wall part B 3 can be molded. It is formed in
The joint side molding parts a3 and a3, which communicate the joint wall molding surface part a4 with both the front body and back body molding surfaces a1 and a2, connect the front body B1 , the back body B2 , and the joint wall B3 , In order to be able to bend toward the valley side from the connected sides B 4 and B 4 that connect each part into an integral structure,
The coupled sides B 4 and B 4 can be formed into a bendable thin wall shape.
斯る上下の成形金型Ａを合せて（第１Ａ図）、
その成形面ａ内に溶融状の合成樹脂材Ｂイを圧入
し（第１Ｂ図）、固形後（第１Ｃ図）に成形金型
Ａを上下に離して、素体Ｂロを射出成型する（第
１Ｄ図）。 Putting the upper and lower molding molds A together (Fig. 1A),
A molten synthetic resin material B is press-fitted into the molding surface a (Fig. 1B), and after solidification (Fig. 1C), the molding die A is vertically separated to injection mold the base body B ( Figure 1D).
成型した素体ＢロはテープのカバーヘツドＣを
取付けた（第４図）後、ジヨイント壁部B3を表
側体B1との間の連成辺B4から表側体B1側に起し
て一側壁ｂ１と成し、次いで裏側体B2との間の
連成辺B4を谷側に屈曲させて（第５図）、両体
B1，B2を合せてケースＢを組立てる（第６図）。 After attaching the cover head C of the tape to the molded element B (Fig. 4), raise the joint wall part B3 from the connecting side B4 between it and the front body B1 to the front body B1 side. The connecting side B4 formed with one side wall b1 and then the back side body B2 is bent toward the valley side (Fig. 5), and both bodies
Assemble case B by combining B 1 and B 2 (Figure 6).
上記実施例において、ジヨイント壁部成型面部
ａ４は表側体B1および裏側体B2の双方の一側壁
ｂ１，ｂ２を成型可能に形成したり（第７図）、
或いは表側体B1および又はB2の一側壁ｂ１，ｂ
２の一部を成型可能な態様に形成する態様（第８
図）もあり自由である。 In the above embodiment, the joint wall molding surface part a4 is formed to be able to mold one side wall b1, b2 of both the front side body B1 and the back side body B2 (FIG. 7),
Or one side wall b1, b of the front body B 1 and or B 2
A mode in which a part of 2 is formed into a moldable mode (8th
(Fig.) is also available.
したがつて本発明によれば次の利点がある。 Therefore, the present invention has the following advantages.
表側体と裏側体を、そのいずれかの一側壁を
形成するジヨイント壁部を経て一体構造状の展
開平面姿勢にして、上下一つの成形金型により
一度に一体成型することができ、容体を構成す
る一つの素体を一体の成形金型により一台の射
出成型機で効率良く生産することができる。 The front side body and the back side body can be made into a flat, unified structure through the joint wall that forms one of the side walls, and can be integrally molded at the same time using one upper and lower mold, forming the container. A single element body can be efficiently produced using a single injection molding machine using an integrated mold.
製造した素体は、そのジヨイント壁部におけ
る連成辺から屈曲させるだけで、表側体と裏側
体とを盲目的に折り合せてたやすく組立てるこ
とが可能である。 The manufactured element body can be easily assembled by blindly folding the front side body and the back side body by simply bending it from the connecting side in the joint wall portion.
第１Ａ図乃至第１Ｄ図は本発明の容体の素体製
造方法の一実施例をビデオカセツト用ケースの素
体の製造例で示す工程図。第２図は成型した素体
の平面図。第３図は−線に沿える縦断面図。
第４図乃至第６図は素体からケースを組立てる状
態を示す各縦断面図。第７図および第８図は本発
明製造方法を実施する他の成型金型におけるジヨ
イント壁部成形面部の部分拡大縦断面図である。
図中、Ａは成形金型、ａは成形面、ａ１は表側
体成形面部、ａ２は裏側体成形面部、ａ３は連成
辺成形部、ａ４はジヨイント壁部成形面部、Ｂロ
は素体、B1は表側体、B2は裏側体、B3はジヨイ
ント壁部、B4は連成辺、ｂ１，ｂ２は一側壁。
FIGS. 1A to 1D are process diagrams showing an example of the method for manufacturing a container element according to the present invention, using an example of manufacturing an element for a video cassette case. Figure 2 is a plan view of the molded element. FIG. 3 is a longitudinal sectional view taken along the - line.
4 to 6 are longitudinal sectional views showing how the case is assembled from the element body. FIGS. 7 and 8 are partially enlarged vertical cross-sectional views of the joint wall molding surface of another mold for implementing the manufacturing method of the present invention. In the figure, A is the molding die, a is the molding surface, a1 is the front body molding surface, a2 is the back body molding surface, a3 is the coupled side molding part, a4 is the joint wall molding surface, B is the element body, B 1 is the front side body, B 2 is the back side body, B 3 is the joint wall, B 4 is the connected side, and b1 and b2 are one side wall.
Claims (1)
の表側体と裏側体からなる合成樹脂製容体の素体
製造方法において、一方の上記表側体成形面部
と、他方の上記裏側体成形面部と、両成形面部間
に位置して且つ夫々に連成辺成形部を経て連通し
ていて、表側体、裏側体の少なくともいずれかの
連成側の一側壁をジヨイント壁部として成形する
ジヨイント壁部成形面部とで成形面を形成してい
る上下の成形金型に、その成形面に合成樹脂材を
圧入して素体を一体成型することを特徴とする素
体製造方法。1. In a method for manufacturing an element body of a synthetic resin container consisting of a front side body and a back side body having an integral structure through a bendable interconnected side of one side edge, the above-mentioned front side body molding surface part on one side and the back side body molding on the other side. A joint that is located between the face part and both molded face parts, communicates with each other via a joint side molded part, and molds one side wall of at least one of the connected sides of the front side body and the back side body as a joint wall part. A method for producing an element body, characterized in that the element body is integrally molded by press-fitting a synthetic resin material into the molding surfaces of upper and lower molding dies whose molding surfaces are formed by a wall molding surface part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22585383A JPS60116416A (en) | 1983-11-30 | 1983-11-30 | Manufacture of blank body of vessel made of synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22585383A JPS60116416A (en) | 1983-11-30 | 1983-11-30 | Manufacture of blank body of vessel made of synthetic resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60116416A JPS60116416A (en) | 1985-06-22 |
| JPS6353932B2 true JPS6353932B2 (en) | 1988-10-26 |
Family
ID=16835865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22585383A Granted JPS60116416A (en) | 1983-11-30 | 1983-11-30 | Manufacture of blank body of vessel made of synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60116416A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0729333B2 (en) * | 1986-03-28 | 1995-04-05 | ソニー株式会社 | Method of manufacturing resin case |
| FR2871535B1 (en) * | 2004-06-15 | 2008-12-05 | Renault Sas | ARRANGEMENT FOR FASTENING A MOTOR VEHICLE ELEMENT |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240574A (en) * | 1975-09-26 | 1977-03-29 | Tokyo Shibaura Electric Co | Method of forming threaded hole for screw in molded article |
| JPS5247467U (en) * | 1975-09-30 | 1977-04-04 |
-
1983
- 1983-11-30 JP JP22585383A patent/JPS60116416A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240574A (en) * | 1975-09-26 | 1977-03-29 | Tokyo Shibaura Electric Co | Method of forming threaded hole for screw in molded article |
| JPS5247467U (en) * | 1975-09-30 | 1977-04-04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60116416A (en) | 1985-06-22 |
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