JPH0636548Y2 - Magnetic tape cassette - Google Patents
Magnetic tape cassetteInfo
- Publication number
- JPH0636548Y2 JPH0636548Y2 JP12806887U JP12806887U JPH0636548Y2 JP H0636548 Y2 JPH0636548 Y2 JP H0636548Y2 JP 12806887 U JP12806887 U JP 12806887U JP 12806887 U JP12806887 U JP 12806887U JP H0636548 Y2 JPH0636548 Y2 JP H0636548Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic tape
- tape cassette
- members
- fastened
- lower half
- 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
- 239000000463 material Substances 0.000 claims description 8
- 230000002265 prevention Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Description
【考案の詳細な説明】 〔考案の分野〕 本考案は磁気テープカセットに関し、詳しくは磁気テー
プカセットの構造に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic tape cassette, and more particularly to the structure of a magnetic tape cassette.
一般に、磁気テープカセットは第８図及び９図に示され
るように、磁気テープを巻回したハブ１と、該ハブの上
下面に各々配置された滑性シート（図示せず）を上下の
ハーフ部材３、５間に収容し、前方側７′に前記磁気テ
ープ案内用のテープガイド７が設けられ、そして後方側
７″には誤消去防止の為の爪及び穴そしてテープ種類を
検出させる為の穴が夫々設けられている。こうした磁気
テープカセットは、従来、上ハーフ部材３の平面部の角
部及び下ハーフ部材５の対応する角部に夫々に形成され
たねじ穴９に前記上ハーフ部材３側からねじ11を挿通し
次で締め付ける構成とされている。然し乍ら、一般に前
記位置に設けられたねじ穴９に於ては、特に下ハーフ部
材５のねじ穴底面を形成する部分13が比較的薄肉とさ
れ、一方その周囲が肉厚とされることから、成形後の合
成樹脂材料の収縮率の相違によって仮想線15で示すよう
なヒケを生じ易い。Generally, as shown in FIGS. 8 and 9, a magnetic tape cassette includes a hub 1 around which a magnetic tape is wound, and slippery sheets (not shown) respectively arranged on the upper and lower surfaces of the hub. The tape guide 7 for guiding the magnetic tape is provided on the front side 7'to be housed between the members 3 and 5, and the rear side 7 "is used to detect a claw and a hole for preventing erroneous erasure and a tape type. Conventionally, such a magnetic tape cassette is provided with the screw holes 9 formed at the corners of the flat surface of the upper half member 3 and the corresponding corners of the lower half member 5, respectively. The screw 11 is inserted from the side of the member 3 and tightened next. However, in the screw hole 9 generally provided at the above-mentioned position, the portion 13 forming the screw hole bottom surface of the lower half member 5 is particularly Relatively thin, while the surrounding area is meat Since the thickness is large, sink marks as shown by an imaginary line 15 are likely to occur due to the difference in shrinkage rate of the synthetic resin material after molding.
また、本考案は構造上及び製造上の融通性を向上させる
為に、第10図及び11図に例示されるように磁気テープカ
セットを例えば剛性の高い材料から形成した後面側部分
17とプラスチック材料から形成したそれ以外の部分19と
に分けた分割構造を想定し、同時出願の対象としたが、
この場合、従来通りテープカセット平面部の４隅で第11
図の如くビス留めすると、２つの部分の接合位置ａから
ねじ位置までの距離l1が大きくなり矢印ｂで示す方向の
ねじれ剛性が従来構造のテープカセットと同等或はそれ
以下となってしまい、剛性材料のメリットが失われてし
まう。またこうした構造でも先に述べたヒケの問題が生
じ易い。更に、ねじがカセットの平面部にあることか
ら、外観上あまり好ましくない。Further, in order to improve the flexibility of the structure and manufacturing, the present invention provides a magnetic tape cassette as shown in FIGS. 10 and 11, for example, a rear surface side portion formed of a highly rigid material.
Assuming a divided structure that is divided into 17 and the other portion 19 formed of a plastic material, it was the subject of the simultaneous application,
In this case, as in the past, at the four corners of the tape cassette flat surface,
When screwed as shown in the figure, the distance l 1 from the joining position a to the screw position of the two parts becomes large, and the torsional rigidity in the direction shown by the arrow b becomes equal to or less than that of the tape cassette of the conventional structure. The advantages of rigid materials are lost. Further, even with such a structure, the problem of sink marks described above is likely to occur. Further, the screws are located on the flat surface of the cassette, which is not preferable in appearance.
本考案の目的は、磁気テープカセットの表裏の平面図
に、ねじ穴によるヒケの無い磁気テープカセットを提供
することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a magnetic tape cassette without sink marks due to screw holes in the front and back plan views of the magnetic tape cassette.
本考案の他の目的は、磁気テープカセットに剛性の異な
る材料から形成された部分を組み合わせる場合に、その
剛性が損なわれない磁気テープカセットを提供すること
であり、更には、磁気テープカセットの表裏の平面部に
ねじが見えず、従って外観の改善された磁気テープカセ
ットを提供することである。Another object of the present invention is to provide a magnetic tape cassette in which the rigidity is not impaired when the magnetic tape cassette is combined with portions formed of materials having different rigidity, and further, the front and back of the magnetic tape cassette are provided. To provide a magnetic tape cassette having an improved appearance, with no visible screws in the flat portion.
本考案によれば、磁気テープを巻回したハブを上下のハ
ーフ部材間に収容し、前面側に前記磁気テープ案内用の
ガイドローラ及びテープガイドが設けられ後面側に誤消
去防止部分及びテープ種類検出部分が設けられた磁気テ
ープカセットに於て、前記カセットは締着するべき２つ
の部分を具備し、該２つの部分は上下のハーフ部材の各
々の側壁側に近接して重畳する部分を具備し、該重畳す
る部分は前記側壁から挿入される締着用手段によって互
いに締着されることを特徴とする磁気テープカセットが
提出される。尚、この場合互いに締着される部分は、上
下のハーフ部材又は先に述べた分割構造における２つの
部分である。According to the present invention, the hub around which the magnetic tape is wound is housed between the upper and lower half members, the guide roller for guiding the magnetic tape and the tape guide are provided on the front side, and the erroneous erasure prevention portion and the tape type are provided on the rear side. In a magnetic tape cassette provided with a detection portion, the cassette has two portions to be fastened, and the two portions have portions overlapping adjacent to the side walls of each of the upper and lower half members. Then, the magnetic tape cassette is proposed in which the overlapping portions are fastened to each other by fastening means inserted from the side wall. In this case, the portions to be fastened to each other are the upper and lower half members or the two portions in the above-mentioned divided structure.
本考案の磁気テープカセットは、前述の構成からテープ
カセット表裏の平面部から肉厚部分を伴うねじ穴及びそ
れに起因するヒケの発生を排除可能ならしめ、それによ
って先に述べた目的を達成する。The magnetic tape cassette of the present invention can eliminate the generation of screw holes with thick portions and sink marks due to the flat portions on the front and back surfaces of the tape cassette from the above-described configuration, thereby achieving the above-mentioned object.
また、本考案の構成によれば、磁気テープカセットを剛
性の異なる複数の材料、例えば金属及びプラスチックか
ら夫々形成した２つの部分の組み合わせ構成とする場合
に、それらを従来通りカセット表面部の４隅で締着する
よりも一層ねじれ剛性を高めた状態で締着し得る。Further, according to the configuration of the present invention, when the magnetic tape cassette is formed of a combination of two parts formed of a plurality of materials having different rigidity, for example, metal and plastic, they are formed in the four corners of the cassette surface as usual. It can be tightened in a state in which the torsional rigidity is further enhanced as compared with the case of.
以下に、図面を参照して本考案を詳しく説明する。第１
図から第５図には本考案の第１実施例の磁気テープカセ
ット２が例示される。本考案の磁気テープカセット２
は、代表的に磁気テープ４とそれを巻回したハブ６と、
ハブ６の上下に各々配置された滑性シート（図示せず）
と、そして前面側に配置された磁気テープ案内用のテー
プガイド（図示せず）とを上ハーフ部材８と下ハーフ部
材10との間部分に収納している。第２図には前記上ハー
フ部材８を内側から見た部分平面図が例示される。本考
案の磁気テープカセット２に於ては、前記上ハーフ部材
８の側壁12及び下ハーフ部材10の側壁14に、前記上下の
ハーフ部材を組み合わせた場合にねじ等の締め具を挿通
し得る穴を具備するリブとそれらに隣り合う切り欠き部
とが夫々形成される。詳しくは、上ハーフ部材８の側壁
12には、第４図に示されるように所定位置に、好ましく
は半円形の第１の切り欠き20と該第１の切り欠き20に隣
接する円形の第１のリブ16とが形成される。そして、前
記下ハーフ部材10の前記第１の切り欠き20と対向する位
置にも、同様に半円形の第２の切り欠き22が設けられ、
前記第２の切り欠き22からテープカセット内側方向に一
定の間隔を置いて前記側壁14と並行に且つ前記上ハーフ
部材８及び下ハーフ部材10とを合着した場合にリブ16が
その間部分に相前後してぴったりと嵌り込む位置に、第
２のリブ18が一体的に形成される。更に、前記第１のリ
ブ16の中央にはねじ等の締着手段を挿通する為の第１の
穴24が、そして前記２つのハーフ部材が合着状態で前記
第１の穴24と整合する位置に第２の穴26が設けられる。Hereinafter, the present invention will be described in detail with reference to the drawings. First
1 to 5 illustrate a magnetic tape cassette 2 according to the first embodiment of the present invention. Magnetic tape cassette 2 of the present invention
Is typically a magnetic tape 4 and a hub 6 around which it is wound,
Sliding sheets (not shown) arranged above and below the hub 6, respectively.
And, a tape guide (not shown) for guiding the magnetic tape arranged on the front side is housed in a portion between the upper half member 8 and the lower half member 10. FIG. 2 illustrates a partial plan view of the upper half member 8 seen from the inside. In the magnetic tape cassette 2 of the present invention, the side wall 12 of the upper half member 8 and the side wall 14 of the lower half member 10 are holes through which fasteners such as screws can be inserted when the upper and lower half members are combined. Ribs having the above and notch portions adjacent to the ribs are respectively formed. Specifically, the side wall of the upper half member 8
As shown in FIG. 4, the 12 is formed with a first notch 20 preferably in a semicircular shape and a circular first rib 16 adjacent to the first notch 20 at predetermined positions. . A second semi-circular second notch 22 is also provided at a position of the lower half member 10 facing the first notch 20,
When the upper half member 8 and the lower half member 10 are joined in parallel with the side wall 14 at a constant distance from the second notch 22 toward the inner side of the tape cassette, the rib 16 is fitted to the portion between them. The second rib 18 is integrally formed at a position where the second rib 18 is fitted tightly in the front-rear direction. Further, a first hole 24 for inserting a fastening means such as a screw is formed in the center of the first rib 16, and the two half members are aligned with the first hole 24 in a fitted state. A second hole 26 is provided in position.
第６図は、本考案の第２実施例に従う磁気テープカセッ
ト２′を例示し、誤消去防止部分及びテープ種類検出部
分を含み且つ高い剛性を有する材料から形成したセパレ
ータ部分28とそれ以外の部分30とに分割した構成とされ
ている。この場合、磁気テープカセット２′は、第７図
に分解図にて示されるように、その前面側から後面側に
かけて一定距離l2の位置で且つ磁気テープカセット２′
の長手方向に沿って２つの部分、即ちセパレータ部分28
とテープ収納部分30とに分割した構成とされている。前
記セパレータ部分28の底部には複数の嵌合凹部32が設け
られ、一方前記テープ収納部分30の前記嵌合凹部32と対
応する位置には嵌合凸部34が設けられる。前記セパレー
タ部分28の側方には、本考案に従うねじ穴36が設けら
れ、そして前記テープ収納部分30の前記セパレータ部分
28の前記ねじ穴36に対応する位置には、該ねじ穴36と整
列するねじ穴を具備するリブ38が設けられる。２つの部
分の組み合せに際しては、先ず、セパレータ部分の嵌合
凹部32及びテープ収納部分30の嵌合凸部34を互いに嵌着
させて両方の部分のねじ穴を整合させ、次で該ねじ穴に
ねじ40等を螺入して締着して２つの部分をしっかりと結
合する。前記セパレータ部分では前述の如くねじ穴が側
方に設けられる為、そうした側方のねじ中心位置から接
合部までの距離を、第11図に示すように従来通りテープ
カセット平面部で締着する場合よりも短縮し得、それに
よって前記セパレータ部分の高い剛性を有効に利用可能
である。尚、第７図ではセパレータ部分28は後面側中央
寄りにメタルポジション検出穴42を具備するメタルテー
プ対応型として例示されているが、該セパレータ部分28
はこの他に、メタルポジション検出穴を具備しない型或
は誤消去防止爪及び誤消去防止穴だけを具備するノーマ
ルテープ対応型の、合計３つのタイプとして形成され得
る。FIG. 6 illustrates a magnetic tape cassette 2'according to a second embodiment of the present invention, which includes a separator portion 28 formed of a material having high rigidity and including an erasure prevention portion and a tape type detection portion, and other portions. It is divided into 30 parts. In this case, as shown in the exploded view in FIG. 7, the magnetic tape cassette 2'is at a position of a constant distance l 2 from the front surface side to the rear surface side and the magnetic tape cassette 2 '.
Along the longitudinal direction of the separator part 28
And the tape storage portion 30 are divided. A plurality of fitting recesses 32 are provided at the bottom of the separator portion 28, while a fitting protrusion 34 is provided at a position corresponding to the fitting recess 32 of the tape storage portion 30. The side of the separator portion 28 is provided with a screw hole 36 according to the present invention, and the separator portion of the tape storage portion 30 is provided.
A rib 38 having a screw hole aligned with the screw hole 36 is provided at a position corresponding to the screw hole 36 of 28. When assembling the two parts, first, the fitting concave portion 32 of the separator portion and the fitting convex portion 34 of the tape accommodating portion 30 are fitted to each other so that the screw holes of both portions are aligned with each other, and then the screw holes are fitted into the screw holes. Tighten the screws 40 etc. by tightening them to firmly connect the two parts. Since the screw holes are provided on the side of the separator as described above, when the distance from the center of the screw on the side to the joint is fixed in the tape cassette plane as in the conventional case as shown in FIG. It is possible to shorten the length of the separator portion, thereby effectively utilizing the high rigidity of the separator portion. In FIG. 7, the separator portion 28 is illustrated as a metal tape compatible type having a metal position detecting hole 42 near the center of the rear surface side.
In addition to the above, a total of three types can be formed, that is, a type not having a metal position detecting hole or a type corresponding to a normal tape having only an erroneous erasure prevention claw and an erroneous erasure prevention hole.
以上本考案を２つの実施例を参照して説明したが、本考
案の内で多くの変更を為し得ることを銘記されたい。前
記第２実施例ではカセット後面側にセパレータ部分を設
けたが、これを磁気ヘッド挿入テープ案内部を含む前面
側に設け、本考案に従って本体部分にねじ留めしても良
い。Although the invention has been described with reference to two embodiments, it should be noted that many modifications can be made within the invention. In the second embodiment, the separator portion is provided on the rear surface side of the cassette, but it may be provided on the front surface side including the magnetic head insertion tape guide portion and screwed to the main body portion according to the present invention.
第１図は本考案の第１実施例に従う磁気テープカセット
の斜視図である。 第２図は本考案の磁気テープカセットの上ハーフ部材を
内側から見た部分平面図である。 第３図は本考案の磁気テープカセットの下ハーフ部材を
内側から見た、第２図と同様の部分平面図である。 第４図は第２図を矢印ａ方向から見た部分斜視図であ
る。 第５図は第３図を矢印ｂ方向から見た部分斜視図であ
る。 第６図は本考案の第２実施例を例示する磁気テープカセ
ットの正面図である。 第７図は第６図の磁気テープカセットの分割状態を例示
する上ハーフ部材の分解平面図である。 第８図は従来の磁気テープカセットの平面図である。 第９図は第８図を線ｃ−ｃで切断した部分断面図であ
る。 第10図は分割部分を有する形式の磁気テープカセットを
従来方式でテープカセットの平面部でねじ留めした場合
を例示する平面図である。 第11図は、第10図を線ｄ−ｄで切断した部分断面図であ
る。 以上本考案を具体例を参照して説明したが、本考案の内
で多くの変更を為し得ることを銘記されたい。 尚、図中主な部分の名称は以下の通りである。 2;磁気テープカセット 8;上ハーフ 10;下ハーフ 12;側壁 14;側壁 16;第１のリブ 18;第２のリブ 20;第１の切り欠き 22;第２の切り欠き 24;第１のねじ穴 26;第２のねじ穴 28;セパレータ部分 32;嵌合凹部 34;嵌合凸部 42;メタルポジション検出穴 44;誤消去防止穴FIG. 1 is a perspective view of a magnetic tape cassette according to a first embodiment of the present invention. FIG. 2 is a partial plan view of the upper half member of the magnetic tape cassette of the present invention seen from the inside. FIG. 3 is a partial plan view similar to FIG. 2, in which the lower half member of the magnetic tape cassette of the present invention is viewed from the inside. FIG. 4 is a partial perspective view of FIG. 2 seen from the direction of arrow a. FIG. 5 is a partial perspective view of FIG. 3 seen from the direction of arrow b. FIG. 6 is a front view of a magnetic tape cassette illustrating a second embodiment of the present invention. FIG. 7 is an exploded plan view of the upper half member illustrating the divided state of the magnetic tape cassette of FIG. FIG. 8 is a plan view of a conventional magnetic tape cassette. FIG. 9 is a partial sectional view of FIG. 8 taken along the line cc. FIG. 10 is a plan view illustrating a case where a magnetic tape cassette having a divided portion is screwed to a flat surface portion of the tape cassette by a conventional method. FIG. 11 is a partial sectional view of FIG. 10 taken along line d-d. Although the present invention has been described above with reference to specific examples, it should be noted that many modifications can be made within the present invention. The names of the main parts in the figure are as follows. 2; magnetic tape cassette 8; upper half 10; lower half 12; side wall 14; side wall 16; first rib 18; second rib 20; first notch 22; second notch 24; first notch 24 Screw hole 26; Second screw hole 28; Separator part 32; Mating recess 34; Mating protrusion 42; Metal position detection hole 44; Erase prevention hole
Claims (6)
部材間に収容し、前面側に前記磁気テープ案内用のガイ
ドローラ及びテープガイドが設けられ後面側に誤消去防
止部分及びテープ種類検出部分が設けられた磁気テープ
カセットに於て、前記カセットは締着するべき２つの部
分を具備し、該２つの部分は上下のハーフ部材の各々の
側壁側に近接して重畳する部分を具備し、該重畳する部
分は前記側壁から挿入される締着用手段によって互いに
締着されることを特徴とする磁気テープカセット。1. A hub around which a magnetic tape is wound is housed between upper and lower half members, a guide roller for guiding the magnetic tape and a tape guide are provided on the front side, and an erroneous erasure prevention portion and tape type detection are provided on the rear side. In a magnetic tape cassette provided with parts, said cassette comprises two parts to be fastened, said two parts comprising parts overlapping adjacent to the side walls of each of the upper and lower half members. A magnetic tape cassette, wherein the overlapping portions are fastened to each other by fastening means inserted from the side wall.
テープ検出部分を含み且つ高い剛性を有する材料から形
成されたセパレータ部分と、それ以外の部分とに分割さ
れた構成である実用新案登録請求の範囲第１項記載の磁
気テープカセット。2. A utility model registration claim, wherein the magnetic tape cassette is divided into a separator portion including an erroneous erasure prevention portion and a tape detection portion and formed of a material having high rigidity, and the other portion. A magnetic tape cassette according to claim 1.
の範囲第１項記載の磁気テープカセット。3. The magnetic tape cassette according to claim 1, wherein the fastening means is a screw.
ブ部分は、前記締着するべき２つの部材を互いに組合せ
た状態で互いに磁気テープカセットの長手方向に相前後
して重なり合う実用新案登録請求の範囲第１項記載の磁
気テープカセット。4. A utility model in which rib portions provided on each of the two members to be fastened overlap each other in the longitudinal direction of the magnetic tape cassette in a state where the two members to be fastened are combined with each other. The magnetic tape cassette according to claim 1.
ブ部分のねじ穴は、前記締着するべき２つの部材を組み
合わせた場合に整合する実用新案登録請求の範囲第１項
記載の磁気テープカセット。5. The utility model registration claim 1 wherein the screw holes of the rib portion provided on each of the two members to be fastened are matched when the two members to be fastened are combined. Magnetic tape cassette.
材である実用新案登録請求の範囲第１項記載の磁気テー
プカセット。6. A magnetic tape cassette according to claim 1, wherein the two members to be fastened are upper and lower half members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12806887U JPH0636548Y2 (en) | 1987-08-25 | 1987-08-25 | Magnetic tape cassette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12806887U JPH0636548Y2 (en) | 1987-08-25 | 1987-08-25 | Magnetic tape cassette |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6435582U JPS6435582U (en) | 1989-03-03 |
| JPH0636548Y2 true JPH0636548Y2 (en) | 1994-09-21 |
Family
ID=31381060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12806887U Expired - Lifetime JPH0636548Y2 (en) | 1987-08-25 | 1987-08-25 | Magnetic tape cassette |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0636548Y2 (en) |
-
1987
- 1987-08-25 JP JP12806887U patent/JPH0636548Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6435582U (en) | 1989-03-03 |
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