JPH0481241B2 - - Google Patents
Info
- Publication number
- JPH0481241B2 JPH0481241B2 JP898884A JP898884A JPH0481241B2 JP H0481241 B2 JPH0481241 B2 JP H0481241B2 JP 898884 A JP898884 A JP 898884A JP 898884 A JP898884 A JP 898884A JP H0481241 B2 JPH0481241 B2 JP H0481241B2
- Authority
- JP
- Japan
- Prior art keywords
- lead wire
- molded
- mold
- wiring
- small
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/17—Construction or disposition of windings
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Description
【発明の詳細な説明】
本願出願人は、先に、昭和58年特許願第162391
号、発明の名称「ビデオヘツドの配線具及びその
製造法」をもつて、ビデオテープレコーダのヘツ
ド部分の配線に使用する配線具の構成とその製造
法の発明につき出願したのであるが、本願発明は
先の出願に係る製造法の一部に改良を加えたもの
である。[Detailed Description of the Invention] The applicant of this application previously filed patent application No. 162391 in 1988.
The invention was filed under the title ``Video Head Wiring Fitting and Method for Manufacturing the Same'' for the structure of a wiring fitting used for wiring the head portion of a video tape recorder and its manufacturing method. is a partial improvement of the manufacturing method related to the earlier application.
即ち、従来ビデオテープレコーダのヘツド部分
の配線は、全て、設定長に切断した通常の被覆電
線をリード線として用い、これをヘツドのプリン
ト基板と中継プリント基板とに極く狭い位置にお
いてハンダ付け接続していたゝめに、著しく作業
性が悪く、また高精度が望めなかつたものを、先
の出願は、上記被覆電線を用いたリード線を１本
宛ハンダ付け使用するものを止め、必要数のリー
ド線を目的位置に合致するように固定的に配置し
た構成の配線具を開発し、該配線具を用いること
により上記ヘツドと中継プリント基板間の配線接
続を極めて簡単にしかも高能率高精度になし得る
ようにしたものであり、また、該配線具を簡単に
しかも高能率高精度に大量生産する製造方法を開
発したものであるが、
本願発明は、先の出願の製造法の一部に改良を
加えて、小柱部に細長片をインサート成形すると
きに、金型の小柱部型の一部に特殊構成を付加す
ることによつて、該小柱部に細長片の各リード線
部分が正確な平行間隔を置いて正しい形状にイン
サート成形されるようにしたものである。 In other words, all the wiring in the head section of conventional video tape recorders uses ordinary covered wires cut to a set length as lead wires, and these are soldered and connected to the head printed circuit board and relay printed circuit board in extremely narrow positions. However, the previous application stopped using the above-mentioned coated wire and soldering it to one lead wire, and the required number of lead wires was soldered. We have developed a wiring tool in which the lead wires are fixedly arranged to match the target position, and by using this wiring tool, the wiring connection between the head and the relay printed circuit board can be made extremely easily, with high efficiency and high precision. In addition, the present invention has developed a manufacturing method for easily mass-producing the wiring fittings with high efficiency and precision. By adding a special configuration to a part of the mold for the small column part of the mold when insert molding the strip in the small column part, each lead of the strip in the small column part can be inserted into the small column part. The line parts are insert-molded in the correct shape with accurate parallel spacing.
以下、本発明に係る配線具の製造法の改良につ
き説明すれば、
導電性の適宜の金属（例、アルミニユーム、銅
等）薄板をプレス成形加工して、長手方向にスリ
ツト６をあけ、その左右側をリード線部ｂとした
細長片７を、ヘツド２の数（通例、２〜５ヘツ
ド、図示例は４ヘツド）に合わせ、放射状（図示
例４方向）に設けるか（第１図のイ）または個々
（図示例４本）に設け（第１図のい）、
各細長片７を、〓形に曲成し（ロ，ろ、但し、
〓形曲成は射出成形加工後に行うも可。）、その曲
成したものを、輪形部８上面にプーリ１における
ヘツド２の数と位置に合わせて小柱部９（図示例
４本）を垂直一体的に突設した構成の配線具本体
ａを成形するための金型D1，D2の小柱部型d1，
d2内にセツトし、該金型により上記配線具本体ａ
を絶縁性プラスチツクで成形加工するとき、該曲
成細長片７を同時に小柱部９内にインサート成形
加工し、
次に、上記成形加工品（ハ，は）の小柱部９上
下端から露出した細長片７の上下端をカツト１０
して、各リード線部ｂを個々に分離したリード線
Ｂとして、
輪形部８と小柱部９からなる配線具本体ａの小
柱部９内にリード線Ｂをその上下端を僅かに露出
して埋没した構成の配線具Ａを製造するようにし
た、先の出願に係るビデオヘツドの配線具の製造
法において、
上記各細長片７を配線具本体ａの小柱部９内に
インサート成形するための金型D1、D2の小柱部
型d1，d2の一方の金型d2に設定長の３本の突条
4a，4b，4cを平行して突設し、該突条４ａ，４
ｂ，４ｃによつてその間に成形される２本の凹条
溝５ａ，５ｂ内に細長片７の２本のリード線部
ｂ，ｂを各別に嵌挿位置した状態で、インサート
成形加工して、もつて、成形された小柱部９の側
面にリード線部ｂ、ｂが前記凸条４ａ，４ｂ，４
ｃによつて成形された条溝１３ａ，１３ｂ，１３
ｃを隔てゝ正確に区画分離された平行状態にイン
サート成形されるようにしたものである。 In the following, an improvement in the manufacturing method of the wiring fitting according to the present invention will be described. A thin plate of an appropriate conductive metal (e.g., aluminum, copper, etc.) is press-molded, a slit 6 is made in the longitudinal direction, and slits 6 are formed on the left and right sides of the thin plate. Either the strips 7 with the lead wire portion b on the side are provided radially (in the four directions in the illustrated example) in accordance with the number of heads 2 (usually 2 to 5 heads, 4 heads in the illustrated example). ) or individually (four illustrated examples) (as shown in Figure 1), each strip 7 is bent into a square shape (B, RO, however,
〓Shaping can be done after the injection molding process. ), and the curved one has a structure in which small pillars 9 (four in the illustrated example) are vertically and integrally protruded from the upper surface of the ring-shaped part 8 in accordance with the number and position of the heads 2 on the pulley 1. The mold D 1 for molding, the small column part mold d 1 of D 2 ,
d 2 , and use the mold to form the wiring fitting body a.
When molding with insulating plastic, the curved strip 7 is simultaneously inserted into the small pillar part 9, and then exposed from the upper and lower ends of the small pillar part 9 of the molded product (c, ha). Cut the top and bottom ends of the strip 7
Then, each lead wire part b is separated as a lead wire B, and the upper and lower ends of the lead wire B are slightly exposed in the small pillar part 9 of the wiring tool body a, which consists of a ring part 8 and a small pillar part 9. In the method for manufacturing a wiring fitting A for a video head according to the previous application, in which wiring fitting A having a buried configuration is manufactured, each of the above-mentioned strips 7 is insert-molded into a small pillar portion 9 of a wiring fitting body a. Three protrusions of a set length are placed on one mold d 2 of the small column parts d 1 and d 2 of the molds D 1 and D 2 for
4a, 4b, 4c are protruded in parallel, and the protrusions 4a, 4
The two lead wire portions b and b of the elongated piece 7 are inserted into the two groove grooves 5a and 5b formed between them by the strips b and 4c, respectively, and insert molding is performed. , and the lead wire portions b, b are attached to the side surfaces of the molded small pillar portion 9 to form the protrusions 4a, 4b, 4.
Grooves 13a, 13b, 13 formed by c.
Insert molding is performed in a parallel state with accurate compartmentalization separated by c.
なお、配線具本体ａの小柱部９に条溝１３ａ，
１３ｂ，１３ｃを形成する金型d2の凸条４ａ，４
ｂ，４ｃは３本共に小柱部９の全長に亙つて条溝
１３ａ，１３ｂ，１３ｃが成形されるように長く
突設しても、また、図示例の如く、中央の凸条４
ｂは長く、左右の凸条４ａ，４ｃは輪形部８に近
い部分だけに突設しても任意であり、要するに、
該金型d2の凸条構成をもつてリード線部ｂ，ｂを
平行状態に保持したまゝインサート成形を行い得
る長さがあれば可である。 Note that grooves 13a,
Convex strips 4a, 4 of mold d2 forming 13b, 13c
Even if the three ridges b and 4c are long and protrude so that grooves 13a, 13b, and 13c are formed over the entire length of the small pillar portion 9, as shown in the example shown in the figure, the central protrusion 4
b is long, and the left and right protrusions 4a, 4c may optionally be provided protruding only in the portion close to the ring-shaped portion 8; in short,
Any length is acceptable as long as the convex structure of the mold d2 has a length that allows insert molding to be performed while the lead wire portions b, b are held in a parallel state.
而して、上記により製造した配線具Ａ、即ち、
絶縁性プラスチツクの輪形部８と小柱部９からな
る配線具本体ａの、小柱部９内にリード線Ｂをそ
の上下端を僅かに露出して埋設して成る配線具Ａ
は、
ビデオテープレコーダのヘツド部分において、
プーリ１に予め突設した孔１１に小柱部９を挿通
してプーリ１の反対側にその先端を突出し、その
各リード線Ｂ端をヘツド２側のプリント基板２′
等及び、中継プリント基板３の所定位置にハンダ
付けｃにより接続して両者２，３間の配線を完成
するものである。なお、このときリード線Ｂを垂
直方向に曲成し、プリント基板に刺し通すように
することも可である。尚、１２は配線具Ａの小柱
部９を孔１１に挿通セツトするときに配線具Ａの
向き（ヘツドに対する）をきめる、位置ぎめダボ
を示す。 Thus, the wiring fitting A manufactured as above, that is,
Wiring tool A consists of a wiring tool body a consisting of an insulating plastic ring-shaped part 8 and a small pillar part 9, and a lead wire B buried in the small pillar part 9 with its upper and lower ends slightly exposed.
In the head part of the video tape recorder,
The small pillar part 9 is inserted into the hole 11 previously provided in the pulley 1, and its tip is projected to the opposite side of the pulley 1, and the end of each lead wire B is connected to the printed circuit board 2' on the head 2 side.
etc., and is connected to a predetermined position of the relay printed circuit board 3 by soldering c to complete the wiring between both 2 and 3. In addition, at this time, it is also possible to bend the lead wire B in the vertical direction and pierce it through the printed circuit board. Reference numeral 12 indicates a positioning dowel for determining the direction of the wiring fitting A (with respect to the head) when inserting and setting the small pillar portion 9 of the wiring fitting A into the hole 11.
上記のようにして、配線具本体Ａの小柱部９内
に細長片７のリード線部分ｂ，ｂをインサート成
形することによつて、次記の如き効果が得られ
る。 By insert-molding the lead wire portions b, b of the elongated strip 7 into the small pillar portion 9 of the wiring fitting main body A as described above, the following effects can be obtained.
即ち、先の出願の製造法によつてインサート成
形を行うと、細長片７（例、アルミニユーム、銅
等の薄板製）のリード線部分ｂは極めて細い
（例、径0.3×0.5mm）上に、２本平行する間隔が
狭く（例、0.7mm）、その上に比較的長い（例、15
〜20mm）ために、金属へセツトする前の取扱い中
や、インサートのために金型へセツトする時など
に、リード線部ｂ，ｂが曲つたり、曲つて相互に
接触したりし易く、また、前記のようにリード線
部ｂ，ｂが細長く、狭い平行間隔であるため、射
出成形時に、プラスチツクの射出圧で該リード線
部ｂ，ｂが変形してしまうことが多く、為に、リ
ード線部ｂ，ｂ相互が接触してしまつてシヨート
したり、一部が小柱部９の外周面に露出してしま
つて、プーリ１の孔１１の内面に接触しシヨート
したりする恐れがあつたが、
その点、本発明のより改良した上記製造法によ
れば、インサート成形時に、リード線部ｂ，ｂが
一方の金型d2の凹条溝５ａ，５ｂ内に嵌挿位置さ
れて該リード線部ｂ，ｂの平行状態が強制的に保
持されたまゝ、プラスチツクの射出成形が行われ
るので、リード線部ｂ，ｂの金型へのセツト前の
変形等は凹条溝５ａ，５ｂへセツトする時に矯正
されると共に、射出時には凹条溝５ａ，５ｂ内に
保持されて射出圧等で決して位置ずれや変形を生
じることがないので、離型後、リード線部ｂ，ｂ
は凸条４ａ，４ｂ，４ｃが成形した条溝１３ａ，
１３ｂ，１３ｃを隔てて、正確な平行間隔を置い
た状態にインサート成形され、よつて、リード線
部ｂ，ｂ相互が誤接触した状態にインサート成形
されたり、或は小柱部９の外周面にリード線ｂ，
ｂの一部が露出してインサート成形されたりする
恐れを、完全に解消し得る優れた特徴を発揮しう
る。 That is, when insert molding is performed using the manufacturing method of the previous application, the lead wire portion b of the strip 7 (e.g., made of a thin plate of aluminum, copper, etc.) is extremely thin (e.g., diameter 0.3 x 0.5 mm). , the distance between the two parallel wires is narrow (e.g. 0.7 mm), and the distance between the two parallel wires is relatively long (e.g. 15 mm).
~20mm), the lead wire parts b and b tend to bend or bend and come into contact with each other during handling before setting into metal or when setting into a mold for insert. Furthermore, as mentioned above, since the lead wire parts b, b are long and thin and have narrow parallel spacing, the lead wire parts b, b are often deformed by the injection pressure of the plastic during injection molding. There is a risk that the lead wire portions b and b may come into contact with each other and be shot, or a portion may be exposed on the outer peripheral surface of the small column portion 9 and come into contact with the inner surface of the hole 11 of the pulley 1 and be shot. However, in this regard, according to the improved manufacturing method of the present invention, the lead wire portions b, b are inserted into the grooves 5a, 5b of one mold d2 during insert molding. Since plastic injection molding is performed while the parallel state of the lead wire portions b, b is forcibly maintained, deformation of the lead wire portions b, b before setting them into the mold is prevented by the concave groove 5a. , 5b, and at the time of injection, they are held in the grooves 5a, 5b and will never be misaligned or deformed due to injection pressure, etc., so that after releasing the mold, the lead wire portions b, b
are the grooves 13a formed by the protrusions 4a, 4b, 4c,
13b and 13c are separated, and insert molding is performed in a state with accurate parallel spacing. Therefore, the insert molding is performed in a state where the lead wire portions b and b are in erroneous contact with each other, or the outer circumferential surface of the small column portion 9. lead wire b,
It can exhibit an excellent feature that can completely eliminate the risk of insert molding with a part of b exposed.
第１図の，イ，い，ロ，ろ，ハ、は及びニは本
発明製造法の順序を示す説明図、第２図はヘツド
及び中継プリント基板の取付けたプーリにおい
て、本発明による配線具の一例を用いた配線状態
を示す一部切断正面図、平面図及び底面図、第３
図は配線具の一例の一部拡大図で、イは平面図、
ロはその左側面図、ハはロのA′−A″切断矢視図、
第４図は本発明に係る改良金型によつて小柱部に
リード線部をインサート成形する順序を示す説明
図、第５図は先の出願に係る金型によつて小柱部
にリード線部をインサート成形する説明図であ
る。
付号、Ａ……本発明方法によつて製造したビデ
オヘツドの配線具、ａ……配線具本体、Ｂ……リ
ード線、ｂ……リード線部分、Ｃ……ハンダ付
け、D1，D2……金型、d1，d2……小柱部型、１
……プーリ、２……ヘツド、２′……そのプリン
ト基板、３……中継プリント基板、４ａ，４ｂ，
４ｃ……凸条、５ａ，５ｂ……凹条溝、６……ス
リツト、７……細長片、８……輪形部、９……小
柱部、１０……カツト、１１……孔、１２……位
置ぎわダボ、１３ａ，１３ｂ，１３ｃ……条溝。
1, A, I, B, RO, C, H, and D are explanatory diagrams showing the order of the manufacturing method of the present invention, and FIG. A partially cutaway front view, top view, and bottom view showing the wiring state using an example, Part 3
The figure is a partially enlarged view of an example of wiring fittings, A is a plan view,
B is the left side view, C is the A′-A″ cutaway view of B,
FIG. 4 is an explanatory diagram showing the order of insert molding a lead wire part in a small column part using the improved mold according to the present invention, and FIG. It is an explanatory view of insert molding a line part. Number, A... Wiring tool for video head manufactured by the method of the present invention, a... Wiring tool body, B... Lead wire, b... Lead wire portion, C... Soldering, D 1 , D 2 ... Mold, d 1 , d 2 ... Small column mold, 1
...Pulley, 2...Head, 2'...The printed circuit board, 3...Relay printed circuit board, 4a, 4b,
4c... Convex strip, 5a, 5b... Concave groove, 6... Slit, 7... Elongated piece, 8... Annular part, 9... Small pillar part, 10... Cut, 11... Hole, 12 ... Position dowels, 13a, 13b, 13c... Grooves.
Claims (1)
方向にスリツトをあけその左右側をリード線部と
した細長片を、ヘツドの数に合わせ、放射状に設
けるか、または個々に設け、 各細手片を、輪形部上面にヘツドの数と位置に
合わせて小柱部を垂直一体的に突設した構成の配
線具本体を成形するための金型の小柱部型内にセ
ツトし、該金型により上記配線具本体を絶縁性プ
ラスチツクで成形加工するとき、該細長片を同時
に小柱部内にインサート成形加工し、 次に、上記成形加工品の、小柱部上下端から露
出した細長片の上下端をカツトして、各リード線
部を個々に分離した各リード線として、 輪形部と小柱部からなる配線具本体の小柱部内
にリード線のその上下端を僅かに露出して埋設し
た構成の配線具を設けるようにした、ビデオヘツ
ドの配線具の製造法において、 上記各細長片を小柱部内にインサート成形加工
するための小柱部型の一方の金型に設定長の突条
を平行に突設し、該突条によつて形成される凹条
構内に、細長片のリード線部を各別に嵌挿位置せ
しめた状態でインサート成形加工して、もつて、
成形された小柱部の側面にリード線部が正確な平
行状態にインサート成形されるようにしたことを
特徴とする、ビデオヘツドの配線具の製造法の改
良。[Scope of Claims] 1. A suitable metal thin plate is press-molded, and slits are formed in the longitudinal direction, and the left and right sides of the strips are formed into lead wire portions, and the strips are provided radially or individually in accordance with the number of heads. Each narrow piece is placed inside the small pillar part mold of a mold for molding the main body of the wiring device, which has a configuration in which small pillar parts are vertically integrally protruded from the top surface of the ring-shaped part in accordance with the number and position of the heads. When the wire fitting main body is molded from insulating plastic using the mold, the strip is simultaneously insert-molded into the small pillar part, and then the upper and lower ends of the small pillar part of the molded product are molded. Cut the top and bottom ends of the strips exposed from the top and bottom of each lead wire, separate each lead wire section, and insert the top and bottom ends of the lead wires into the small pillar part of the wiring fitting body, which consists of a ring part and a small pillar part. In a method of manufacturing a wiring fitting for a video head in which wiring fittings are provided with a slightly exposed and buried configuration, one metal plate of a small column mold is used for insert molding each of the above-mentioned strips into the small column part. Protrusions of a set length are provided on the mold in parallel, and insert molding is performed with the lead wire portions of the elongated pieces individually inserted into the grooves formed by the protrusions. Also,
An improved method for manufacturing a wiring fitting for a video head, characterized in that a lead wire part is insert-molded in an accurate parallel state on the side surface of a molded small column part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP898884A JPS60154302A (en) | 1984-01-21 | 1984-01-21 | Improved manufacturing method for video head wiring fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP898884A JPS60154302A (en) | 1984-01-21 | 1984-01-21 | Improved manufacturing method for video head wiring fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60154302A JPS60154302A (en) | 1985-08-14 |
| JPH0481241B2 true JPH0481241B2 (en) | 1992-12-22 |
Family
ID=11708064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP898884A Granted JPS60154302A (en) | 1984-01-21 | 1984-01-21 | Improved manufacturing method for video head wiring fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60154302A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS618701A (en) * | 1984-06-22 | 1986-01-16 | Hitachi Ltd | Manufacturing and installation method of signal transmission relay terminal in rotating magnetic head device |
-
1984
- 1984-01-21 JP JP898884A patent/JPS60154302A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60154302A (en) | 1985-08-14 |
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