JPS6140171B2 - - Google Patents
Info
- Publication number
- JPS6140171B2 JPS6140171B2 JP11930181A JP11930181A JPS6140171B2 JP S6140171 B2 JPS6140171 B2 JP S6140171B2 JP 11930181 A JP11930181 A JP 11930181A JP 11930181 A JP11930181 A JP 11930181A JP S6140171 B2 JPS6140171 B2 JP S6140171B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- resin
- holes
- fixing
- segments
- 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
- 229920005989 resin Polymers 0.000 claims description 28
- 239000011347 resin Substances 0.000 claims description 28
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 238000000465 moulding Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000000379 polymerizing effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 238000001746 injection moulding Methods 0.000 description 6
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010079 rubber tapping Methods 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
この発明はブラケツトを有する枠体の製造方
法、特に剛性のある金属板等で製作した枠体を合
成樹脂のインジエクシヨン成形型内に設置して、
枠体に部分的に部品等を取付けるための合成樹脂
製ブラケツトを一体的に形成した枠体の製造方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a frame body having a bracket, in particular, a frame body made of a rigid metal plate or the like is placed in a synthetic resin injection molding die.
The present invention relates to a method of manufacturing a frame in which a synthetic resin bracket for partially attaching parts to the frame is integrally formed.
テレビジヨンセツト用のキヤビネツトなどの電
気機器において、種々の部品を保持するために、
ブラケツトを有する枠体が使用されている。第１
図は従来の枠体を示す斜視図であり、図面におい
て、枠体１は四辺形の打抜金属板１ａに合成樹脂
製のブラケツト１ｂ，１ｃ……………が形成され
ている。 To hold various parts in electrical equipment such as television set cabinets,
A frame with brackets is used. 1st
The figure is a perspective view showing a conventional frame body. In the drawing, the frame body 1 has synthetic resin brackets 1b, 1c formed on a quadrilateral punched metal plate 1a.
従来の枠体１の製造方法は金属板をプレス等に
より額縁状に打抜くとともに、ブラケツト１ｂ，
１ｃ用の貫通孔を打抜いて打抜金属板１ａを形成
し、この打抜金属板１ａをインジエクシヨン成形
型内に載置して、枠体の表面に部分的に突出する
樹脂部分からなるブラケツト１ｂ，１ｃ…………
…を成形固着しており、ブラケツト１ｂ，１ｃ…
…………はギア、ローラ、その他の部品を取付け
るように形成している。 The conventional manufacturing method for the frame 1 is to punch out a metal plate into a frame shape using a press or the like, and then to form the brackets 1b,
A through hole for 1c is punched out to form a punched metal plate 1a, and this punched metal plate 1a is placed in an injection mold to form a bracket made of a resin portion that partially protrudes from the surface of the frame. 1b, 1c……
... are molded and fixed, and the brackets 1b, 1c...
………… is formed to attach gears, rollers, and other parts.
しかしながら、このような従来の枠体の製造方
法においては打抜によつて打抜金属板を形成する
ため、中央部の金属板がスクラツプとなり不経済
であるという問題点があつた。 However, in such a conventional method for manufacturing a frame, since a punched metal plate is formed by punching, there is a problem that the central metal plate is scrapped, which is uneconomical.
このような問題点を解決するために、枠体１を
構成する各辺をセグメントとして製作し、各セグ
メントを四辺形を形成するように重合し、重合し
た四隅部をリベツトまたはスポツト溶接等で固着
して四角枠体を形成した後、上記と同様にインジ
エクシヨン成形型内に載置してブラケツトを形成
する製造方法も行われている。 In order to solve these problems, each side of the frame 1 is manufactured as a segment, each segment is polymerized to form a quadrilateral, and the four polymerized corners are fixed by rivets or spot welding. There is also a manufacturing method in which a rectangular frame is formed and then placed in an injection mold in the same manner as above to form a bracket.
しかしながら、このような製造方法において
は、リベツト止め、あるいはスポツト溶接等によ
りセグメントを固着するので、組付工数が多くな
るとともに、固着により応力が発生したり、溶接
時に発生する熱によつて枠体が変形する等の問題
点があつた。 However, in this manufacturing method, the segments are fixed by riveting or spot welding, etc., which increases the number of assembly steps. There were problems such as deformation.
この発明は、このような従来の問題点に着目し
てなされたもので、枠体を形成するセグメントに
固着用の貫通孔を設けておき、インジエクシヨン
成形によるブラケツト成形に際して、貫通孔に樹
脂を充填してセグメントを固着し枠体を製造する
ことにより、上記問題点を解決することを目的と
している。 This invention was made by focusing on such conventional problems, and involves providing through holes for fixing in the segments forming the frame body, and filling the through holes with resin during bracket molding by injection molding. The purpose of this invention is to solve the above problems by manufacturing a frame by fixing the segments.
枠体を構成する少なくとも２個のセグメントに
ブラケツト用およびセグメント固着用の貫通孔を
形成する工程と、前記セグメントを互いにクロス
するように配置しかつ固着用の貫通孔が一致する
ように重合させてインジエクシヨン成形型内に設
置する工程と、型内に溶融樹脂を射出してブラケ
ツトを形成するとともに、重合部の貫通孔に樹脂
を充填し、セグメントを固着して枠体を形成する
ことを特徴とする枠体の製造方法である。 forming through holes for brackets and segment fixing in at least two segments constituting the frame; arranging the segments so as to cross each other and superimposing them so that the through holes for fixing coincide; It is characterized by the step of installing it in an injection mold, injecting molten resin into the mold to form a bracket, filling the through holes of the overlapping part with resin, and fixing the segments to form a frame. This is a method for manufacturing a frame body.
以下、この発明を図面により説明する。第２図
はこの発明の一実施例により製造された枠体を示
す斜視図、第３図はＰ方向矢視図、第４図は変形
例を示すＰ方向矢視図、第５図はL1−L2方向矢
視図、第６図は変形例を示すL1−L2方向矢視
図、第７図はM1−M2方向矢視図、第８図はN1−
N2方向矢視図、第９図はN1−N3方向の成形状態
を示す金型の垂直断面図、第１０図は別の実施例
によるN1−N3方向の成形状態を示す金型の一部
の垂直断面図である。 Hereinafter, this invention will be explained with reference to the drawings. Fig. 2 is a perspective view showing a frame manufactured according to an embodiment of the present invention, Fig. 3 is a view taken in the P direction, Fig. 4 is a view taken in the P direction showing a modified example, and Fig. 5 is a view taken in the P direction. 1 -L 2 direction arrow view, Figure 6 is a modified example L 1 -L 2 direction arrow view, Figure 7 is M 1 -M 2 direction arrow view, Figure 8 is N 1 -
N2 direction arrow view, FIG. 9 is a vertical sectional view of the mold showing the molding state in the N1 - N3 direction, and FIG. 10 is a mold showing the molding state in the N1 - N3 direction according to another embodiment. FIG. 3 is a vertical cross-sectional view of a portion of the mold.
枠体２は各辺を形成する４個の長尺状の金属板
からなるセグメント２ａ，２ｂ，２ｃ，２ｄが額
縁状の四辺形を形成するように、四隅で重合さ
れ、固着用樹脂３ａ，３ｂ……………３ｆによつ
て固着され、ブラケツト４ａ，４ｂ……………４
ｉが形成されている。 The frame body 2 has segments 2a, 2b, 2c, and 2d made up of four elongated metal plates forming each side, which are polymerized at the four corners to form a frame-like quadrilateral.Fixing resins 3a, 3b......3f, and the brackets 4a, 4b......4
i is formed.
製造方法は、まず鉄板などの金属板をプレス等
により所定の形状寸法に切断しセグメント２ａ，
２ｂ……………を形成する。セグメントの形状は
平板状に限らず、剛性を与えるために、第４図の
２ｃに示すように縁部を折曲げたり、あるいはビ
ード（図示せず）を設けてもよい。このようなセ
グメントには、プレス加工等によりブラケツト用
および固着用の貫通孔を形成する。この点をL1
−L2部分を例にして、第５図により説明する
と、セグメント２ｂおよび２ｃにブラケツト４ｆ
用の貫通孔５ａおよび固着用樹脂３ｃ，３ｄ用の
貫通孔６ａ，６ｂを形成する。 The manufacturing method is to first cut a metal plate such as an iron plate into a predetermined shape and size using a press or the like to form segments 2a,
2b......... is formed. The shape of the segment is not limited to a flat plate shape, and in order to provide rigidity, the edge portion may be bent or a bead (not shown) may be provided as shown in 2c in FIG. 4. Through-holes for brackets and fixing are formed in such segments by pressing or the like. This point is L 1
-L 2 part as an example, and to explain with reference to Fig. 5, brackets 4f are attached to segments 2b and 2c.
A through hole 5a for the fixing resin and through holes 6a and 6b for the fixing resin 3c and 3d are formed.
このように貫通孔を形成したセグメントは、第
９図に示すように、互にクロスするように配置
し、かつ貫通孔が一致するように重合させてイン
ジエクシヨン成形型内に設置し、ブラケツトおよ
び固着用樹脂を射出して成形を行う。第９図によ
り、N1−N3部分の射出成形の場合を例にして説
明すると、セグメント２ａ，２ｄに固着用の貫通
孔６ｃ，６ｄ，６ｅを形成し、またセグメント２
ｄにブラケツト用の貫通孔５ｄを形成したのち、
キヤビテイ型７およびコア型８間にセツトし、ピ
ン９によつて位置決め固定したのち、ダイプレー
ト１０を閉じてランナー１１よりゲート１２を通
して溶融樹脂を射出すると、キヤビテイ型７、コ
ア型８およびセグメント２ａ，２ｄによつて形成
されるキヤビテイ空間に樹脂が充填され、ブラケ
ツト４ａが形成されるとともに、固着用樹脂３ａ
が形成され、セグメント２ａ，２ｄが固着され、
枠体２が形成される。１３はブラケツト４ａに孔
を形成するためのピンである。 As shown in FIG. 9, the segments with through holes formed in this way are arranged so as to cross each other, and are placed in an injection mold with the through holes aligned so that they overlap and are placed in an injection mold. The resin is injected and molded. To explain the case of injection molding of the N 1 -N 3 portion as an example with reference to FIG. 9, through holes 6c, 6d, and 6e for fixing are formed in the segments 2a and 2d, and
After forming a through hole 5d for the bracket in d,
After setting between the cavity mold 7 and the core mold 8 and positioning and fixing with the pins 9, the die plate 10 is closed and the molten resin is injected from the runner 11 through the gate 12, and the cavity mold 7, the core mold 8 and the segment 2a are , 2d is filled with resin to form the bracket 4a, and the fixing resin 3a
is formed, segments 2a and 2d are fixed,
A frame body 2 is formed. 13 is a pin for forming a hole in the bracket 4a.
射出成形用の樹脂としては、ナイロン、
PBT、ポリアセタールのようなエンジニアリン
グプラスチツクが使用でき、ブラケツトおよび固
着用樹脂とも同じ樹脂により成形を行う。ゲート
１２の先端が硬化したのち、コア型８を上昇させ
ると、ゲート１２内の樹脂が引きちぎられ、製品
としての枠体２が下側からインジエクトされる。 Nylon, resin for injection molding,
Engineering plastics such as PBT and polyacetal can be used, and the bracket and fixing resin are molded using the same resin. After the tip of the gate 12 is hardened, when the core mold 8 is raised, the resin inside the gate 12 is torn off and the frame 2 as a product is injected from below.
以上の射出成形は枠体２の他の部分においても
同様に行われ、例えばL1−L2部分では第５図の
ようにブラケツト４ｆおよび固着用樹脂３ｃ，３
ｄが形成される。L1−L2部分は、第６図に示す
ように、複数個の貫通孔に充填された樹脂がセグ
メントの両側で連続した形状の固着用樹脂３ｇを
形成してもよい。また固着用樹脂は、第７図の
M1−M2部分に示すように、ブラケツトと共用さ
れてもよい。すなわち、第７図において、固着用
樹脂３ｂはブラケツト２ａ，２ｂの重合部に設け
られてブラケツトとしても機能する。 The above injection molding is performed in the same way on other parts of the frame body 2. For example, in the L1 - L2 part, as shown in FIG.
d is formed. In the L 1 -L 2 portion, as shown in FIG. 6, a fixing resin 3g may be formed in which resin filled in a plurality of through holes is continuous on both sides of the segment. In addition, the adhesive resin is shown in Figure 7.
It may also be shared with the bracket as shown in the M 1 -M 2 section. That is, in FIG. 7, the fixing resin 3b is provided at the overlapping portion of the brackets 2a and 2b, and also functions as a bracket.
上記のようにして形成された固着用樹脂３ａ，
３ｂ……………はセグメント２ａ，２ｂ…………
…を四隅で固着して枠体２を形成するが、この場
合、固着用の貫通孔６ａ，６ｂ……………を近接
させて２個以上設けると強固に固着され、安定性
が増す。またブラケツト４ａ，４ｂ……………は
それぞれの部品の取付等に適合した形状、構造に
成形する。例えばブラケツト４ａの場合、第８図
に示すように、部品１４をワツシヤ１５を介して
タツピングスクリユ１６により取付けることがで
きるように、ピン１３を使用して円筒状に成形す
る。いずれの場合も貫通孔の両側において、はみ
出した樹脂がセグメントを挾着するようにキヤビ
テイ空間を形成するものとする。 The fixing resin 3a formed as described above,
3b………………are segments 2a, 2b……
... are fixed at the four corners to form the frame body 2. In this case, if two or more through holes 6a, 6b for fixing are provided in close proximity, they will be firmly fixed and stability will be increased. Further, the brackets 4a, 4b, . . . are formed into shapes and structures suitable for mounting the respective parts. For example, the bracket 4a is formed into a cylindrical shape using a pin 13 so that the component 14 can be attached by a tapping screw 16 through a washer 15, as shown in FIG. In either case, cavity spaces are formed on both sides of the through-hole so that the protruding resin grips the segments.
第１０図はピン１３をコア型８に設けた場合を
示し、ブラケツト４ａの円筒状側から樹脂を射出
するようにしたものである。このように、成形型
のどちらにピンを設けるか、あるいは樹脂の射出
方向などは特に限定されない。またブラケツトお
よび固着用樹脂の形状、ならびに貫通孔の形状等
も制限はない。さらに、本発明は電気機器用の枠
体に限らず、他のブラケツトを有する枠体の製造
にも同様に適用可能である。 FIG. 10 shows a case where the pin 13 is provided in the core mold 8, and the resin is injected from the cylindrical side of the bracket 4a. In this way, there are no particular limitations on which part of the mold the pin is provided with or the direction in which the resin is injected. Furthermore, there are no restrictions on the shapes of the bracket and the fixing resin, and the shapes of the through holes. Furthermore, the present invention is not limited to frames for electrical equipment, but is equally applicable to the manufacture of frames having other brackets.
以上説明してきたように、この発明によれば、
枠体を分割してセグメントとして製作し、各セグ
メントを重合して、射出成形によりブラケツトの
形成と同時に固着するようにしたので、材料のス
クラツプが発生せず、組付用の別部品、組付工数
が不要となるとともに、枠体に応力が発生せず、
変形のおそれもないなどの効果がある。 As explained above, according to this invention,
The frame is divided into segments, each segment is polymerized, and the brackets are formed and fixed together by injection molding, so there is no scrap of material and there are no separate parts for assembly. No man-hours are required, and no stress is generated on the frame.
It has the advantage that there is no risk of deformation.
第１図は従来の枠体を示す斜視図、第２図はこ
の発明の一実施例により製造された枠体を示す斜
視図、第３図はＰ方向矢視図、第４図は変形例を
示すＰ方向矢視図、第５図はL1−L2方向矢視
図、第６図は変形例を示すL1−L2方向矢視図、
第７図はM1−M2方向矢視図、第８図はN1−N2方
向矢視図、第９図はN1−N3方向の成形状態を示
す金型の一部の垂直断面図、第１０図は別の実施
例によるN1−N3方向の成形状態を示す金型の一
部の垂直断面図である。
各図中、同一符号は同一または相当部分を示
し、１，２は枠体、２ａ，２ｂ……………はセグ
メント、３ａ，３ｂ……………は固着用樹脂、４
ａ，４ｂ……………はブラケツト、５ａ，５ｂ…
…………，６ａ，６ｂ……………は貫通孔、７は
キヤビテイ型、８はコア型、９はピン、１０はダ
イプレートである。
Fig. 1 is a perspective view showing a conventional frame body, Fig. 2 is a perspective view showing a frame body manufactured according to an embodiment of the present invention, Fig. 3 is a view taken in the direction of arrow P, and Fig. 4 is a modified example. 5 is a view taken in the L1 - L2 direction, and FIG. 6 is a view taken in the L1 - L2 direction showing a modification.
Figure 7 is a view in the M1 - M2 direction, Figure 8 is a view in the N1 - N2 direction, and Figure 9 is a vertical view of a part of the mold showing the molding state in the N1 - N3 direction. 10 is a vertical sectional view of a part of a mold showing a molding state in the N 1 -N 3 direction according to another embodiment. In each figure, the same reference numerals indicate the same or equivalent parts, 1 and 2 are frame bodies, 2a, 2b...... are segments, 3a, 3b...... are resin for fixing, 4
a, 4b……… are brackets, 5a, 5b…
. . . , 6 a, 6 b . . . are through holes, 7 is a cavity type, 8 is a core type, 9 is a pin, and 10 is a die plate.
Claims (1)
にブラケツト用およびセグメント固着用の貫通孔
を形成する工程と、前記セグメントを互いにクロ
スするように配置しかつ固着用の貫通孔が一致す
るように重合させてインジエクシヨン成形型内に
設置する工程と、型内に溶融樹脂を射出してブラ
ケツトを形成するとともに、重合部の貫通孔に樹
脂を充填し、セグメントを固着して枠体を形成す
ることを特徴とする枠体の製造方法。 ２ 重合部の固着用の貫通孔を、近接して少なく
とも２個設ける特許請求の範囲第１項記載の枠体
の製造方法。 ３ 貫通孔に充填した樹脂が、両側からセグメン
トを挟着するように成形を行う特許請求の範囲第
１項または第２項記載の枠体の製造方法。 ４ 貫通孔に充填した樹脂がセグメントの両側に
おいて連続するように成形を行う特許請求の範囲
第１項ないし第３項のいずれかに記載の枠体の製
造方法。[Scope of Claims] 1. A step of forming through holes for brackets and segment fixing in at least two segments constituting the frame, and arranging the segments so as to cross each other and having through holes for fixing. The process involves polymerizing them so that they match and placing them in an injection mold. In addition to injecting molten resin into the mold to form a bracket, filling the through holes in the polymerized part with resin and fixing the segments to form a frame. A method for manufacturing a frame body, characterized by forming a frame body. 2. The method for manufacturing a frame according to claim 1, wherein at least two through holes for fixing the overlapping portion are provided in close proximity. 3. The method of manufacturing a frame body according to claim 1 or 2, wherein the molding is performed so that the resin filled in the through hole sandwiches the segments from both sides. 4. The method for manufacturing a frame according to any one of claims 1 to 3, wherein the molding is performed so that the resin filled in the through holes is continuous on both sides of the segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11930181A JPS5820428A (en) | 1981-07-31 | 1981-07-31 | Production of frame body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11930181A JPS5820428A (en) | 1981-07-31 | 1981-07-31 | Production of frame body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5820428A JPS5820428A (en) | 1983-02-05 |
| JPS6140171B2 true JPS6140171B2 (en) | 1986-09-08 |
Family
ID=14758025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11930181A Granted JPS5820428A (en) | 1981-07-31 | 1981-07-31 | Production of frame body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5820428A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61246732A (en) * | 1985-04-24 | 1986-11-04 | Fuji Photo Optical Co Ltd | Variable power mechanism for copying machine |
| JP5680454B2 (en) * | 2011-03-16 | 2015-03-04 | 小島プレス工業株式会社 | Injection molding method |
| US10059078B2 (en) * | 2012-03-23 | 2018-08-28 | Cutting Dynamics, Inc. | Injection molded composite blank and guide |
| JP6212469B2 (en) * | 2014-11-19 | 2017-10-11 | 豊田鉄工株式会社 | Plate-shaped composite member and method for manufacturing plate-shaped composite member |
| JP2020104442A (en) * | 2018-12-28 | 2020-07-09 | 株式会社マーレ フィルターシステムズ | Junction structure and manufacturing method of junction structure |
-
1981
- 1981-07-31 JP JP11930181A patent/JPS5820428A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5820428A (en) | 1983-02-05 |
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