JP3179473B2 - How to combine cassette halves - Google Patents
How to combine cassette halvesInfo
- Publication number
- JP3179473B2 JP3179473B2 JP31649590A JP31649590A JP3179473B2 JP 3179473 B2 JP3179473 B2 JP 3179473B2 JP 31649590 A JP31649590 A JP 31649590A JP 31649590 A JP31649590 A JP 31649590A JP 3179473 B2 JP3179473 B2 JP 3179473B2
- Authority
- JP
- Japan
- Prior art keywords
- cassette
- halves
- tip
- boss
- vibration
- 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 - Fee Related
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、例えばマイクロカセットの製造に用いて有
効なカセットハーフの結合方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for joining cassette halves that is effective, for example, for manufacturing microcassettes.
本発明はカセットハーフの結合方法に関し、下ハーフ
に植立されるボスの先端を上ハーフに設けられる孔より
突出させ、この先端部を横振動の超音波にて超音波溶融
させて、上下ハーフ間をカシメ結合するものであって、
カセット匣体の損傷や、収納される磁気テープの損傷を
招くことなく、容易に良好なカセットハーフの結合を行
えるようにするものである。The present invention relates to a method for joining cassette halves, in which a tip of a boss set in a lower half is protruded from a hole provided in an upper half, and this tip is ultrasonically melted by ultrasonic vibration of lateral vibration to form an upper and lower half. It is a caulking connection between
This makes it possible to easily and easily connect the cassette halves without damaging the cassette housing or the magnetic tape to be stored.
例えばマイクロカセットの製造においてカセットハー
フの結合を行う場合には、従来は下ハーフに植立される
ボスに対して、上ハーフに設けられる孔を介して、所謂
タッピンネジをねじ込むことによって結合するようにさ
れている。For example, in the case of connecting the cassette halves in the manufacture of a microcassette, conventionally, a so-called tapping screw is screwed into a boss set in the lower half through a hole provided in the upper half. Have been.
しかしながら通常このようなネジは、１個のカセット
に対して４本程度設けられており、タッピングを４本も
ねじ込むことは、製造工程が増加し大量生産に不適当で
あると共に、製造コストが増大するなどの問題があっ
た。However, usually, about four such screws are provided for one cassette, and screwing in as many as four tappings increases the number of manufacturing steps, is unsuitable for mass production, and increases manufacturing costs. There were problems such as doing.
これに対して、カセット匣体を形成する樹脂を超音波
溶融させて、上下ハーフの結合を行うことが検討されて
いる。On the other hand, it has been studied to combine the upper and lower halves by ultrasonically melting the resin forming the cassette housing.
すなわち第４図において、下ハーフ（41）の従来タッ
ピンネジのねじ込まれていたボス（42）に対して、上ハ
ーフ（43）の孔に代えてボス（42）の先端を保持するリ
ブ（44）が設けられ、このリブ（44）内に超音波溶融さ
れる突起部（45）が設けられる。そしてこの上ハーフ
（43）の上側から、ボス（42）に対向する位置に超音波
ホーン振動部（51）を対接させ、このホーン振動部（5
1）にて縦振動の超音波を発生させることによって、上
述の突起部（45）が超音波溶融され、ボス（42）の先端
とリブ（44）が溶着され、上下ハーフ（41）（43）が結
合される。That is, in FIG. 4, a rib (44) for holding the tip of the boss (42) instead of the hole of the upper half (43) is provided for the boss (42) into which the conventional tapping screw of the lower half (41) is screwed. And a projection (45) to be ultrasonically melted is provided in the rib (44). Then, from above the upper half (43), an ultrasonic horn vibrating part (51) is brought into contact with a position facing the boss (42), and the horn vibrating part (5
By generating longitudinal vibration ultrasonic waves in 1), the above-mentioned projections (45) are ultrasonically melted, the tips of the bosses (42) and the ribs (44) are welded, and the upper and lower halves (41) (43) ) Are combined.
ところがこの方法の実施に当たって、例えば４点ホー
ンを用いて４箇所に同時に縦振動の超音波を発生させ、
40kHzの振動で0.10秒の溶着を行ったところ、カセット
匣体の前歯ピンに根本クラック等の損傷を生じる問題が
発生した。また同じく40kHzの振動で0.20秒の溶着を行
ったところ、カセット匣体の前歯ピンに傾斜クラック等
の損傷を生じた。また、40kHzの振動で0.30秒の溶着を
行ったところ、カセット匣体の前歯ピンに傾斜クラック
等の損傷を発生すると共に、収納される磁気テープのエ
ッジ部に所謂ワカメ状の損傷を生じた。さらに40kHzの
振動で0.50秒の溶着を行ったところ、カセット匣体の前
歯ピンに傾斜クラック等の損傷を発生し、収納される磁
気テープのエッジ部に所謂ワカメ状の損傷を生じると共
に、誤消去防止ツメにも傾斜クラック等の損傷を発生し
た。However, in implementing this method, for example, using a four-point horn, simultaneously generate longitudinal vibration ultrasonic waves at four locations,
When welding was performed for 0.10 seconds at a vibration of 40 kHz, there was a problem that the front teeth pins of the cassette casing were damaged such as a root crack. In addition, when welding was performed for 0.20 seconds at the same vibration of 40 kHz, damage such as inclined cracks occurred on the front teeth pins of the cassette housing. Further, when welding was performed for 0.30 seconds with a vibration of 40 kHz, damage such as inclined cracks occurred on the front tooth pins of the cassette casing, and so-called wakame-like damage occurred on the edges of the magnetic tape to be stored. Furthermore, when welding was performed for 0.50 seconds with a vibration of 40 kHz, damage such as inclined cracks occurred on the front tooth pins of the cassette casing, so-called wakame-like damage occurred at the edge of the stored magnetic tape, and erroneous erasure The prevention claws also suffered damage such as inclined cracks.
すなわち従来の縦振動の超音波を用いた超音波溶融に
よる溶着では、カセット匣体の損傷や、収納される磁気
テープの損傷を招く等、良好なカセットハーフの結合を
行うことができないものであった。That is, conventional welding by ultrasonic fusion using ultrasonic waves of longitudinal vibration cannot damage the cassette housing or damage the magnetic tape to be housed, and cannot perform good joining of cassette halves. Was.
この出願はこのような点に鑑みてなされたもので、簡
単な構成で容易に良好なカセットハーフの結合を行うこ
とができるようにするものである。This application is made in view of such a point, and aims at making it possible to easily connect a good cassette half with a simple configuration.
本発明は、下ハーフ（11）に植立されるボス（12）の
先端（突起部（13））を上ハーフ（14）にラベル面側を
テーパ状（凹部（16））にして形成される孔（15）より
突出させると共に、この突出された先端部を横振動の超
音波（超音波ホーン振動部（22））にて超音波溶融させ
て、この溶融により上記ボスの先端を上記テーパ状に沿
った形状に変形固化させて上記上下ハーフ間をカシメ結
合するようにしたカセットハーフの結合方法である。In the present invention, the tip (projection (13)) of the boss (12) planted in the lower half (11) is formed in the upper half (14) with the label surface side tapered (recess (16)). Through the hole (15), and the protruding tip is ultrasonically melted by a transverse vibration ultrasonic wave (ultrasonic horn vibrator (22)). This is a method of connecting cassette halves in which the upper and lower halves are deformed and solidified into a shape along the shape and are caulked to each other.
これによれば、下ハーフに植立されるボスの先端が上
ハーフに設けられる孔より突出され、この先端部が横振
動の超音波にて超音波溶融されて、上下ハーフ間がカシ
メ結合されるので、カセット匣体の損傷や、収納される
磁気テープの損傷を招くことなく、容易に良好なカセッ
トハーフの結合を行うことができる。According to this, the tip of the boss planted in the lower half protrudes from the hole provided in the upper half, and this tip is ultrasonically melted by transverse vibration ultrasonic waves, and the upper and lower halves are caulked. Therefore, good cassette halves can be easily connected without causing damage to the cassette housing and damage to the magnetic tape to be stored.
第１図において、下ハーフ（11）の従来タッピンネジ
のねじ込まれていたボス（12）の先端に超音波溶融され
る突起部（13）が設けられる。この突起部（13）が上ハ
ーフ（14）の孔（15）から突出される。さらにこの孔
（15）の周囲の上ハーフ（14）の上面側は所定のテーパ
状の凹部（16）にされると共に、下面側には突起部（1
3）を保持するリブ（17）が設けられる。そしてこの上
ハーフ（14）の孔（15）から突出される突起部（13）に
超音波ホーン振動部（22）を対接させ、このホーン振動
部（22）にて横振動の超音波を発生させることによっ
て、突起部（13）が超音波溶融され、この溶融された樹
脂がテーパ状の凹部（16）に溜まって固化されることに
よって、上下ハーフ（11）（14）がカシメ結合される。In FIG. 1, a projection (13) to be ultrasonically melted is provided at the tip of a boss (12) into which a conventional tapping screw of a lower half (11) is screwed. The projection (13) projects from the hole (15) of the upper half (14). Further, the upper half side of the upper half (14) around the hole (15) is formed into a predetermined tapered recess (16), and the projection (1) is formed on the lower side.
A rib (17) for holding 3) is provided. The ultrasonic horn vibrating part (22) is brought into contact with the projection (13) projecting from the hole (15) of the upper half (14), and the ultrasonic vibration of the lateral vibration is applied to the horn vibrating part (22). The protrusions (13) are ultrasonically melted by this generation, and the melted resin accumulates in the tapered recess (16) and solidifies, whereby the upper and lower halves (11) and (14) are caulked. You.
すなわち第２図Ａは溶着前の構成を示し、下ハーフ
（11）のボス（12）の先端に突起部（13）が設けられ、
この突起部（13）が上ハーフ（14）の孔（15）から突出
されている。そして同図Ｂは溶着後の構成を示し、横振
動の超音波で超音波溶融された突起部（13）は、この溶
融された樹脂（18）がテーパ状の凹部（16）に溜まって
固化されることによって、上下ハーフ（11）（14）がカ
シメ結合されている。なおこの固化された樹脂（18）の
上面は、上ハーフ（14）の上側のラベル面（19）に対し
て0.30〜0.70mm程度の凹部となるように突起部（13）の
大きさ、凹部（16）の形状等が調整される。That is, FIG. 2A shows the configuration before welding, in which a projection (13) is provided at the tip of the boss (12) of the lower half (11).
The projection (13) projects from the hole (15) of the upper half (14). FIG. 3B shows the structure after welding, and the protrusion (13) ultrasonically melted by the transverse vibration ultrasonic wave is solidified by the molten resin (18) accumulating in the tapered recess (16). As a result, the upper and lower halves (11) and (14) are caulked. The size of the protrusion (13) is set such that the upper surface of the solidified resin (18) forms a recess of about 0.30 to 0.70 mm with respect to the upper label surface (19) of the upper half (14). The shape of (16) is adjusted.
また第３図は超音波ホーン（21）にて超音波溶融を行
う際の構成を示し、超音波ホーン（21）に設けられた例
えば４点振動部（22）が、それぞれカセット匣体の突起
部（13）に対接され、この超音波ホーン（21）の全体が
例えば矢印ａに示すように前後に振動されることによっ
て、横振動の超音波が突起部（13）に与えられる。FIG. 3 shows a configuration when ultrasonic melting is performed by the ultrasonic horn (21). For example, a four-point vibrating section (22) provided on the ultrasonic horn (21) has a projection on the cassette housing. The ultrasonic horn (21) is brought into contact with the portion (13), and is vibrated back and forth as shown by an arrow a, for example, so that a transverse vibration ultrasonic wave is applied to the projection (13).
こうして上述の方法によれば、下ハーフ（11）に植立
されるボス（12）の先端（突起部（13））が上ハーフ
（14）に設けられる孔（15）より突出され、この先端部
が横振動の超音波（超音波ホーン（21））にて超音波溶
融されて、上下ハーフ間がカシメ結合されるので、カセ
ット匣体の損傷や、収納される磁気テープの損傷を招く
ことなく、容易に良好なカセットハーフの結合を行うこ
とができるものである。Thus, according to the above-described method, the tip (projection (13)) of the boss (12) planted in the lower half (11) is projected from the hole (15) provided in the upper half (14). The part is ultrasonically melted by the transverse vibration ultrasonic wave (ultrasonic horn (21)), and the upper and lower halves are crimped together, causing damage to the cassette housing and damage to the magnetic tape to be stored. Therefore, good cassette halves can be easily connected.
なおこの方法の実施に当たって、例えば４点ホーンを
用いて４箇所に同時に横振動の超音波を発生させ、20kH
zの振動で0.20秒、0.40秒、0.80秒の溶着を行ったとこ
ろ、いずれの場合もカセット匣体及び収納される磁気テ
ープへの損傷は認められなかった。In carrying out this method, for example, a four-point horn is used to simultaneously generate transverse vibration ultrasonic waves at four points,
When welding was performed for 0.20 seconds, 0.40 seconds, and 0.80 seconds with the vibration of z, no damage to the cassette casing and the magnetic tape to be stored was found in any case.
〔発明の効果〕 この発明によれば、下ハーフに植立されるボスの先端
が上ハーフに設けられる孔より突出され、この先端部が
横振動の超音波にて超音波溶融されて、上下ハーフ間が
カシメ結合されるので、カセット匣体の損傷や、収納さ
れる磁気テープの損傷を招くことなく、容易に良好なカ
セットハーフの結合を行うことができるようになった。[Effects of the Invention] According to the present invention, the tip of the boss planted in the lower half is projected from the hole provided in the upper half, and this tip is ultrasonically melted by transverse vibration ultrasonic waves, Since the halves are caulked, the cassette halves can be easily and easily connected without damaging the cassette casing or the magnetic tape to be stored.
第１図は本発明によるカセットハーフの結合方法の一例
の説明のための線図、第２図、第３図は具体例の装置の
構成図、第４図は従来の方法の説明のための線図であ
る。 （11）は下ハーフ、（12）はボス、（13）は突起部、
（14）は上ハーフ、（15）は孔、（16）は凹部、（17）
はリブ、（21）は超音波ホーン、（22）はホーン振動部
である。FIG. 1 is a diagram for explaining an example of a method for joining cassette halves according to the present invention, FIGS. 2 and 3 are diagrams showing the construction of a specific example of an apparatus, and FIG. 4 is a diagram for explaining a conventional method. FIG. (11) is the lower half, (12) is the boss, (13) is the protrusion,
(14) upper half, (15) hole, (16) recess, (17)
Is a rib, (21) is an ultrasonic horn, and (22) is a horn vibrator.
Claims (1)
フにラベル面側をテーパ状にして形成される孔より突出
させると共に、 この突出された先端部を横振動の超音波にて超音波溶融
させて、 この溶融により上記ボスの先端を上記テーパ状に沿った
形状に変形固化させて上記上下ハーフ間をカシメ結合す
るようにしたカセットハーフの結合方法。1. A tip of a boss set in a lower half is made to protrude from a hole formed in the upper half by tapering the label surface side, and the protruding tip is made by ultrasonic vibration of lateral vibration. A method of joining cassette halves by ultrasonically melting and deforming and solidifying the tip of the boss into a shape along the tapered shape by the melting, thereby caulking between the upper and lower halves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31649590A JP3179473B2 (en) | 1990-11-21 | 1990-11-21 | How to combine cassette halves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31649590A JP3179473B2 (en) | 1990-11-21 | 1990-11-21 | How to combine cassette halves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04186581A JPH04186581A (en) | 1992-07-03 |
| JP3179473B2 true JP3179473B2 (en) | 2001-06-25 |
Family
ID=18077738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31649590A Expired - Fee Related JP3179473B2 (en) | 1990-11-21 | 1990-11-21 | How to combine cassette halves |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3179473B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102599431B1 (en) | 2015-08-10 | 2023-11-07 | 카와사키 주코교 카부시키 카이샤 | insulation structure |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2528671Y2 (en) * | 1991-11-05 | 1997-03-12 | 河西工業株式会社 | Caulking structure of resin parts |
| JP4203446B2 (en) * | 2004-05-25 | 2009-01-07 | 富士フイルム株式会社 | Caulking method of metal plate for tape reel |
| JP5017162B2 (en) * | 2008-03-27 | 2012-09-05 | 本田技研工業株式会社 | Fuel pump mounting structure |
| KR102310290B1 (en) * | 2014-11-21 | 2021-10-07 | 현대모비스 주식회사 | Lamp Apparatus |
-
1990
- 1990-11-21 JP JP31649590A patent/JP3179473B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102599431B1 (en) | 2015-08-10 | 2023-11-07 | 카와사키 주코교 카부시키 카이샤 | insulation structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04186581A (en) | 1992-07-03 |
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