JPS6327323Y2 - - Google Patents
Info
- Publication number
- JPS6327323Y2 JPS6327323Y2 JP1983024173U JP2417383U JPS6327323Y2 JP S6327323 Y2 JPS6327323 Y2 JP S6327323Y2 JP 1983024173 U JP1983024173 U JP 1983024173U JP 2417383 U JP2417383 U JP 2417383U JP S6327323 Y2 JPS6327323 Y2 JP S6327323Y2
- Authority
- JP
- Japan
- Prior art keywords
- tape
- cassette
- reels
- integrally molded
- cylindrical wall
- 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
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 description 7
- 238000005192 partition Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
- G11B23/04—Magazines; Cassettes for webs or filaments
- G11B23/08—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、例えばビデオテープレコーダ用のテ
ープカセツトに適用するのに最適なテープカセツ
トに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a tape cassette most suitable for application to, for example, a tape cassette for a video tape recorder.
背景技術とその問題点
第１図及び第２図はビデオテープレコーダ用の
従来のテープカセツトを示したものであつて、カ
セツト筐体１は、共に合成樹脂にて一体成形され
た上ハーフ２と下ハーフ３とで構成されており、
上ハーフ２と下ハーフ３とは上下から嵌合され、
例えば４隅とほゞ中央部との５点で止ビス４ａ〜
４ｅによつて互に一体にビス止めされている。そ
してカセツト筐体１内には左右一対のリール５，
６が夫々回転自在に収納されており、磁気テープ
７がこれら両リール５，６に夫々巻装されて収納
されている。なおカセツト筐体１の前面開口８に
は回動自在の前蓋９が取付けられており、磁気テ
ープ７は一対のテープガイド１０，１１にて案内
されて前蓋９の内側に沿つて前面開口８を横断す
る状態にパスされている。BACKGROUND ART AND PROBLEMS FIGS. 1 and 2 show a conventional tape cassette for a video tape recorder, in which a cassette housing 1 has an upper half 2 integrally molded from synthetic resin. It consists of the lower half 3,
The upper half 2 and the lower half 3 are fitted from above and below,
For example, set screws 4a to 5 points at the four corners and approximately in the center.
4e, they are screwed together. Inside the cassette case 1 are a pair of left and right reels 5,
6 are rotatably housed, respectively, and a magnetic tape 7 is wound and housed around both reels 5 and 6, respectively. A rotatable front cover 9 is attached to the front opening 8 of the cassette housing 1, and the magnetic tape 7 is guided by a pair of tape guides 10 and 11 to the front opening 8 along the inside of the front cover 9. 8 has been passed.
そしてカセツト筐体１内で上ハーフ２の下面と
両リール５，６の上面との間の空間部分には板ば
ね１３が収納されている。この板ばね１３は平面
形状でほゞＶ字状に屈曲されていて、その屈曲点
部分である長手方向のほゞ中央部１３ａにて上ハ
ーフ２に後述する如く固定されている。そしてこ
の板ばね１３の長手方向の両端部１３ｂ，１３ｃ
が両リール５，６の上面中央部に一体成形して設
けられた小突起５ａ，６ａ上に弾性的に押圧し
て、これら両リール５，６を下ハーフ３側に押し
つけている。なお板ばね１３はステンレス板やリ
ン青銅板の如き金属ばねにて構成されており、そ
の中央部１３ａは上ハーフ２の内面（下面）に一
体成形されたダボ１４に小孔１５によつて挿入さ
れ、そのダボ１４の下端を溶着することによつて
固定されている。また板ばね１３の中央部１３ａ
でダボ１４の近傍位置は上ハーフ２の内面に一体
成形された止ビス４ｅのビス止め用のボス部１６
に挿通孔１７によつて挿通されている。 A leaf spring 13 is housed in the space between the lower surface of the upper half 2 and the upper surfaces of both reels 5 and 6 within the cassette housing 1. This leaf spring 13 has a planar shape bent into a substantially V-shape, and is fixed to the upper half 2 at a bending point, which is a substantially central portion 13a in the longitudinal direction, as will be described later. Both ends 13b and 13c in the longitudinal direction of this leaf spring 13
is elastically pressed onto small protrusions 5a, 6a integrally formed on the center portions of the upper surfaces of both reels 5, 6, thereby pressing both reels 5, 6 toward the lower half 3 side. The leaf spring 13 is made of a metal spring such as a stainless steel plate or a phosphor bronze plate, and its central portion 13a is inserted through a small hole 15 into a dowel 14 integrally formed on the inner surface (lower surface) of the upper half 2. and is fixed by welding the lower end of the dowel 14. Also, the central portion 13a of the leaf spring 13
The position near the dowel 14 is a boss portion 16 for fixing the set screw 4e integrally molded on the inner surface of the upper half 2.
is inserted through the insertion hole 17.
一方両リール５，６の中間部相当位置で下ハー
フ３には発光素子挿入孔１９が設けられている。
そしてカセツト筐体１の内部にあつて発光素子挿
入孔１９の周囲を囲繞すべく上ハーフ２と下ハー
フ３との内面（上下面）に夫々一体成形された断
面ほゞＵ字状をなす上下一対の筒状壁２０，２１
が設けられている。なおこれら両筒状壁２０，２
１はカセツト筐体１内をリール収納部側と前面開
口８側との間で仕切るべく上ハーフ２と下ハーフ
３との内面に夫々一体成形して設けられた上下一
対の仕切壁２２，２３の背面に設けられている。
そして両筒状壁２０，２１の左右両側部でこれら
の上下突き合せ部（上下方向のほぼ中央部）には
左右一対の窓孔２４が設けられている。また両窓
孔２４に対向されてカセツト筐体１の左右両側壁
１ａに左右一対の光検出窓２５が設けられてい
る。なお両光検出窓２５は前蓋９が閉蓋状態にあ
る時にはその前蓋９の左右両端部９ａによつて閉
塞されているが、テープカセツトがビデオテープ
レコーダに装着されて前蓋９が開蓋されると、こ
れら両光検出窓２５が開放されるように構成され
ている。 On the other hand, a light emitting element insertion hole 19 is provided in the lower half 3 at a position corresponding to the intermediate portion of both reels 5 and 6.
Upper and lower halves having a substantially U-shaped cross section are integrally molded on the inner surfaces (upper and lower surfaces) of the upper half 2 and the lower half 3, respectively, to surround the light emitting element insertion hole 19 inside the cassette housing 1. A pair of cylindrical walls 20, 21
is provided. Note that both these cylindrical walls 20, 2
Reference numeral 1 denotes a pair of upper and lower partition walls 22 and 23 that are integrally molded on the inner surfaces of the upper half 2 and the lower half 3, respectively, to partition the inside of the cassette housing 1 between the reel storage section side and the front opening 8 side. It is located on the back of the .
A pair of left and right window holes 24 are provided at the upper and lower abutting portions (approximately at the center in the vertical direction) of the left and right sides of both the cylindrical walls 20 and 21. Further, a pair of left and right light detection windows 25 are provided on both left and right side walls 1a of the cassette housing 1, facing the window holes 24. When the front cover 9 is in the closed state, both the light detection windows 25 are closed by the left and right ends 9a of the front cover 9, but when the tape cassette is attached to the video tape recorder and the front cover 9 is opened. When the lid is closed, both of these light detection windows 25 are opened.
このテープカセツトは以上の如く構成されてい
て、これをビデオテープレコーダに装着すると、
第２図に仮想線で示す如く、発光素子挿入孔１９
内に小型ランプ等の発光素子２６が挿入される。
またこれと同時に第１図に示す如く前蓋９の開蓋
によつて開放された両光検出窓２５の外側にフオ
トトランジスタ等の受光素子２７が配置される。
そしてビデオテープレコーダによる磁気テープ７
の記録又は再生時等において、テープエンドとな
ると、両窓孔２４と両光検出窓２５との間の一対
の光路上のうち、何れか一方に透明のリーダテー
プが現われる為、発光素子２６から両窓孔２４の
両側方に照射されている光が、その透明なリーダ
テープを透過して何れか一方の光検出窓２５から
何れか一方の受光素子２７にて受光されて、テー
プエンドの光検出がなされる。なおこのテープエ
ンドの光検出がなされると、磁気テープ７の走行
が自動停止されることになる。 This tape cassette is constructed as described above, and when it is installed in a video tape recorder,
As shown by the imaginary line in FIG. 2, the light emitting element insertion hole 19
A light emitting element 26 such as a small lamp is inserted inside.
At the same time, as shown in FIG. 1, a light-receiving element 27 such as a phototransistor is placed on the outside of both light detection windows 25 opened by opening the front cover 9.
And magnetic tape 7 by video tape recorder
When recording or reproducing, etc., when the tape ends, a transparent leader tape appears on one of the pair of optical paths between the window holes 24 and the light detection windows 25, so that the light emitting element 26 The light irradiated on both sides of both window holes 24 passes through the transparent leader tape and is received by one of the light receiving elements 27 from one of the light detection windows 25, and the light at the end of the tape is detected. A detection is made. Note that when the tape end is optically detected, the running of the magnetic tape 7 is automatically stopped.
ところで以上の如く構成された従来のテープカ
セツトでは、上下ハーフ２，３を上下から嵌合さ
せて５本の止ビス４ａ〜４ｅにてビス止めしてカ
セツト筐体１を組立てる際に問題があつた。 However, in the conventional tape cassette constructed as described above, there is a problem when assembling the cassette housing 1 by fitting the upper and lower halves 2 and 3 from above and securing them with the five set screws 4a to 4e. Ta.
即ち板ばね１３を有していなければ、上下ハー
フ２，３を上下から嵌合させた時にこれらはすん
なり嵌合されるのであるが、板ばね１３がある為
に、第２図に示す如くその板ばね１３の反発力に
よつて上ハーフ２が下ハーフ３に対して大きく浮
いてしまう。従つてビス止め時には、いちいち作
業者が上ハーフ２を板ばね１３に抗して下ハーフ
３上に押え込みながらビス止めしなければなら
ず、そのビス止め作業は著しく不便なものになつ
ている。また製造ラインにおいて、下ハーフ３上
に上ハーフ２を嵌合させてビス止め工程位置まで
搬送する間に、上ハーフ２が下ハーフ３上でがた
ついて位置ずれを発生したり、場合によつては上
ハーフ２が下ハーフ３上から不測に脱落する等の
不都合も往々にして発生していた。 That is, if the leaf springs 13 were not provided, when the upper and lower halves 2 and 3 were fitted from above and below, they would fit together easily, but because of the leaf springs 13, it would not be possible to do so as shown in FIG. Due to the repulsive force of the leaf spring 13, the upper half 2 floats significantly relative to the lower half 3. Therefore, when screwing, the operator must press the upper half 2 onto the lower half 3 against the leaf spring 13 each time, making the screwing work extremely inconvenient. In addition, on the manufacturing line, while the upper half 2 is fitted onto the lower half 3 and transported to the screw-fastening process position, the upper half 2 may rattle on the lower half 3, causing misalignment. Inconveniences such as the upper half 2 accidentally falling off from the lower half 3 often occur.
考案の目的
本考案は、上述の如き欠陥を是正することが出
来るテープカセツトを提供しようとするものであ
る。Purpose of the invention The present invention aims to provide a tape cassette capable of correcting the above-mentioned defects.
考案の概要
本考案は、第１図及び第２図で述べたテープカ
セツトにおいて、上記両リールの中間部に入り込
む平面形状がほゞＶ字状をなすテープ案内壁兼用
のハーフ補強用リブを上記筒状壁と一体に上記一
方のハーフに一体成形して設け、この補強用リブ
の先端部近傍位置に垂直状をなす係止孔を設け、
上記上下ハーフのうち他方のハーフに一体成形さ
れたビス止め用ボス部を上記係止孔内に圧入嵌合
させて、上記上ハーフと下ハーフとを仮止めさせ
ることが出来るように構成したものであり、カセ
ツト筐体の組立て作業を極めて都合良く行えるも
のを提供出来る。Summary of the invention The present invention is based on the tape cassette described in Figs. 1 and 2, in which a half-reinforcing rib that also serves as a tape guide wall and has a substantially V-shaped planar shape that enters the intermediate portion of the two reels is provided. The reinforcing rib is integrally molded into one half of the cylindrical wall, and a vertical locking hole is provided near the tip of the reinforcing rib.
A screw fixing boss integrally molded on the other half of the upper and lower halves is press-fitted into the locking hole to temporarily fix the upper half and the lower half. Therefore, it is possible to provide an extremely convenient assembly work of the cassette case.
実施例
以下本考案を、ビデオテープレコーダ用のテー
プカセツトに適用した一実施例を第３図〜第６図
によつて説明する。なお第１図及び第２図に示し
た従来例と同一構造部には同一の符号を附してそ
の説明を省略した。Embodiment An embodiment in which the present invention is applied to a tape cassette for a video tape recorder will be described below with reference to FIGS. 3 to 6. Note that structural parts that are the same as those of the conventional example shown in FIGS. 1 and 2 are given the same reference numerals, and their explanations are omitted.
即ちこのテープカセツトでは、先ず第３図に示
す如く下ハーフ３側の内面（上面）に筒状壁３１
を一体成形して設けている。この筒状壁３１は仕
切壁２３の背面側に一体に接続される状態で成形
されていて、その仕切壁２３の上方に延出されて
いる。そして後述するように上下ハーフ２，３を
上下から嵌合させた時にその筒状壁３１の上端面
３１ａが上ハーフ２の内面（下面）に固着されて
いる板ばね１３の中央部を下方から押圧して固定
することが出来るように、その筒状壁３１の高さ
h1は充分に高く構成されている。しかしてこの筒
状壁３１にはテープ案内壁兼用の下ハーフ補強用
リブ３２が一体に成形されている。この下ハーフ
補強用リブ３２は前記リール５，６の中間部に入
り込む平面形状がほゞＶ字状をなしていて、その
先端部３２ａ近傍位置には垂直状の係止孔３３が
ほゞ下ハーフ３の底面近くまで深さh2にわたつて
設けられている。そして下ハーフ補強用リブ３２
の先端部３２ａは係止孔３３の左右両側部に設け
られたスリツト３４により前後方向の弾性をもつ
ように形成されている。 That is, in this tape cassette, first, as shown in FIG.
are integrally molded. This cylindrical wall 31 is molded to be integrally connected to the back side of the partition wall 23 and extends above the partition wall 23. Then, as will be described later, when the upper and lower halves 2 and 3 are fitted from above and below, the upper end surface 31a of the cylindrical wall 31 connects the central part of the leaf spring 13 fixed to the inner surface (lower surface) of the upper half 2 from below. The height of the cylindrical wall 31 is set so that it can be fixed by pressing.
h 1 is configured high enough. However, a lower half reinforcing rib 32 which also serves as a tape guide wall is integrally formed on the cylindrical wall 31 of the lever. The lower half reinforcing rib 32 has a substantially V-shaped planar shape that enters the intermediate portion of the reels 5 and 6, and a vertical locking hole 33 is provided near the tip 32a of the lower half reinforcing rib 32. It is provided over a depth h 2 to near the bottom of half 3. And lower half reinforcing rib 32
The distal end portion 32a is formed with slits 34 provided on both left and right sides of the locking hole 33 so as to have elasticity in the front-rear direction.
一方上ハーフ２のほゞ中央部の内面（下面）に
はほゞ円柱状をなす前記ビス止め用ボス部１６が
一体成形で設けられている。このボス部１６は成
形時の型抜きの為に若干先すぼまりに形成されて
いるが、このボス部１６の基部での径d1は上記係
止孔３３内に圧入嵌合されるべく、係止孔３３の
径d2より若干大き目に構成されている。 On the other hand, on the inner surface (lower surface) of the substantially central portion of the upper half 2, the substantially cylindrical screw-fixing boss portion 16 is integrally formed. This boss portion 16 is formed to be slightly tapered for die cutting during molding, but the diameter d 1 at the base of this boss portion 16 is designed to be press-fitted into the locking hole 33. , is configured to be slightly larger than the diameter d2 of the locking hole 33.
本考案のテープカセツトは以上の如く構成され
ており、第４図及び第５図に示す如くカセツト筐
体１の組立て時において、上下ハーフ２，３を上
下から嵌合させると、〔なおこの時、板ばね１３
の両端部１３ｂ，１３ｃが両リール５，６の上面
中央部の両小突起５ａ，６ａ上に弾性に抗して押
圧される。〕第６図に示す如く上ハーフ２のビス
止め用ボス１６が下ハーフ補強用リブ３２の係止
孔３３内に弾性に抗して圧入嵌合される。なおこ
の際の弾性は係止孔３３の左右両側部に形成され
たスリツト３４によつて下ハーフ補強用リブ３２
の先端部３２ａに与えられたものである。 The tape cassette of the present invention is constructed as described above, and when the upper and lower halves 2 and 3 are fitted from above and below when assembling the cassette housing 1 as shown in FIGS. , leaf spring 13
Both ends 13b, 13c of the reels 5, 6 are pressed against elasticity onto the small protrusions 5a, 6a at the center of the upper surfaces of the reels 5, 6. ] As shown in FIG. 6, the screw fixing boss 16 of the upper half 2 is press-fitted into the locking hole 33 of the lower half reinforcing rib 32 against elasticity. The elasticity at this time is maintained by the slits 34 formed on both the left and right sides of the locking hole 33, so that the lower half reinforcing rib 32
This is given to the tip portion 32a of the.
しかしてビス止め用ボス部１６を係止孔３３内
に圧入嵌合させたことで、そのビス止め用ボス部
１６の外周面と係止孔３３の内周面との嵌合摩擦
力により、上下ハーフ２，３はその嵌合状態で機
械的に結合された仮止め状態となる。そしてこの
仮止めにより、上ハーフ２が板ばね１３の反発力
によつて下ハーフ３の上方に不測に浮き上つてし
まうようなことがなくなる。従つてこの後におけ
る５本の止ビス４ａ〜４ｅによる上下ハーフ２，
３のビス止め作業時に、いちいち作業者が上ハー
フ２を板ばね１３に抗して下ハーフ３上に押え込
みながらビス止めする必要がなくなり、そのビス
止め作業は著しく簡単となる。また製造ラインに
おいて、下ハーフ３上に上ハーフ２を嵌合させて
ビス止め工程位置まで搬送する間でも、上ハーフ
２が下ハーフ３上でがたついて位置ずれを発生し
たり、場合によつて上ハーフ２が下ハーフ３上か
ら不測に脱落する等の不都合も確実に防止出来
る。 By press-fitting the screw fixing boss part 16 into the locking hole 33, the fitting friction force between the outer circumferential surface of the screw fixing boss part 16 and the inner circumferential surface of the locking hole 33 causes In the fitted state, the upper and lower halves 2 and 3 are mechanically coupled and temporarily fixed. This temporary fixing prevents the upper half 2 from accidentally floating above the lower half 3 due to the repulsive force of the leaf spring 13. Therefore, after this, the upper and lower halves 2,
During the screw fixing work in step 3, it is no longer necessary for the operator to press the upper half 2 onto the lower half 3 against the leaf spring 13 each time, and the screw fixing work becomes extremely simple. In addition, on the manufacturing line, even when the upper half 2 is fitted onto the lower half 3 and transported to the screw-fastening process position, the upper half 2 may wobble on the lower half 3, causing misalignment. Inconveniences such as the upper half 2 accidentally falling off from the lower half 3 can also be reliably prevented.
なお上下ハーフ２，３をビス止めしてカセツト
筐体１を組立てた時、第５図に示すように、筒状
壁３１の上端面３１ａが板ばね１３の中央部１３
ａを下方から押圧して上ハーフ２の内面（下面）
との間で挟み込んでしまうので、その板ばね１３
の中央部１３ａは上ハーフ２に強固に固定され
る。 Note that when the upper and lower halves 2 and 3 are screwed together to assemble the cassette housing 1, the upper end surface 31a of the cylindrical wall 31 is aligned with the center portion 13 of the leaf spring 13, as shown in FIG.
Press a from below to remove the inner surface (lower surface) of upper half 2.
Because the leaf spring 13 gets caught between
The central portion 13a of is firmly fixed to the upper half 2.
以上本考案の一実施例に付き述べたが、本考案
によれば実施例で示した構成とは逆に、筒状壁３
１を上ハーフ２側に上ハーフ補強用リブと一体に
設け、またビス止め用ボス１６を下ハーフ３側に
一体成形しても良い。 Although one embodiment of the present invention has been described above, according to the present invention, contrary to the configuration shown in the embodiment, the cylindrical wall 3
1 may be provided integrally with the upper half reinforcing rib on the upper half 2 side, and the screw fixing boss 16 may be integrally molded on the lower half 3 side.
応用例
本考案はビデオテープレコーダ用テープカセツ
トに限定されることなく、その他の各種記録再生
装置や情報処理装置用のテープカセツトに適用可
能である。Application Examples The present invention is not limited to tape cassettes for video tape recorders, but can be applied to tape cassettes for various other recording/reproducing devices and information processing devices.
考案の効果
本考案は、上述した如く上下ハーフを上下から
嵌合させた時に、ハーフ補強用リブに設けた係止
孔内に他方のハーフに設けたビス止め用ボス部を
圧入嵌合させて、上下ハーフを機械的に仮止めす
ることが出来るように構成したものである。そし
て上下ハーフを機械的に仮止めすることが出来る
ので、これらを複数本の止ビスにてビス止めして
カセツト筐体を組立てる際の、そのビス止め作業
を極めて簡単に行える。また上下ハーフを機械的
に仮止めした状態でビス止め出来ることから、自
動機を導入した自動組立てを非常に容易に行え
る。また係止孔を有するリブはハーフの補強をも
兼用して行うので、ハーフが堅牢となる。Effects of the invention The present invention is such that, when the upper and lower halves are fitted from above and below, as described above, the boss portion for screw fixing provided on the other half is press-fitted into the locking hole provided on the rib for reinforcing one half. , which is constructed so that the upper and lower halves can be mechanically temporarily fastened. Since the upper and lower halves can be mechanically temporarily fastened, the screw fastening work when assembling the cassette casing by fastening these with a plurality of set screws can be performed extremely easily. In addition, since the upper and lower halves can be screwed together while being mechanically temporarily secured, automatic assembly using an automatic machine can be performed very easily. Furthermore, since the ribs having the locking holes also serve as reinforcement for the half, the half becomes sturdy.
第１図はビデオテープレコーダ用テープカセツ
トの従来例を示した一部切欠き平面図、第２図は
第１図−線矢視状態の断面図である。第３図
〜第６図は本考案を適用したビデオテープレコー
ダ用テープカセツトの一実施例を示したものであ
つて、第３図は要部の分解斜視図、第４図はカセ
ツト全体の一部切欠き平面図、第５図は第４図
−線矢視状態の断面図、第６図は要部の圧入嵌
合状態を示した斜視図である。
また図面に用いられた符号において、１……カ
セツト筐体、１ａ……カセツト筐体の左右両側
壁、２……上ハーフ、３……下ハーフ、５，６…
…リール、７……磁気テープ、１６……ビス止め
用ボス部、１９……発光素子挿入孔、２４……窓
孔、２５……光検出窓、３１……筒状壁、３２…
…下ハーフ補強用リブ、３２ａ……下ハーフ補強
用リブの先端部、３３……係止孔である。
FIG. 1 is a partially cutaway plan view showing a conventional example of a tape cassette for a video tape recorder, and FIG. 2 is a sectional view taken along the line shown in FIG. 1. 3 to 6 show an embodiment of a tape cassette for a video tape recorder to which the present invention is applied. FIG. 3 is an exploded perspective view of the main parts, and FIG. FIG. 5 is a cross-sectional view taken from the line shown in FIG. 4, and FIG. 6 is a perspective view showing the press-fitted state of the main parts. In addition, in the symbols used in the drawings, 1...cassette housing, 1a...left and right side walls of the cassette housing, 2...upper half, 3...lower half, 5, 6...
... Reel, 7 ... Magnetic tape, 16 ... Screw fixing boss, 19 ... Light emitting element insertion hole, 24 ... Window hole, 25 ... Photodetection window, 31 ... Cylindrical wall, 32 ...
...lower half reinforcing rib, 32a...tip end of lower half reinforcing rib, 33...locking hole.
Claims (1)
体と、上記カセツト筐体内に回転自在に収納され
た一対のリールと、上記両リールに巻装されて収
納されたテープと、上記両リールの中間部相当位
置で上記下ハーフに開口された発光素子挿入孔
と、上記発光素子挿入孔の周囲を囲繞すべく上記
上下ハーフのうち一方のハーフに一体成形して設
けられた筒状壁と、上記筒状壁の左右両側部に設
けられた左右一対の窓孔と、上記両窓孔に対向さ
れて上記カセツト筐体の左右両側壁に設けられた
左右一対の光検出窓とを有するテープカセツトに
おいて、上記両リールの中間部に入り込む平面形
状がほゞＶ字状をなすテープ案内壁兼用のハーフ
補強用リブを上記筒状壁と一体に上記一方のハー
フに一体成形して設け、この補強用リブの先端部
近傍位置に垂直状をなす係止孔を設け、上記上下
ハーフのうち他方のハーフに一体成形されたビス
止め用ボス部を上記係止孔内に圧入嵌合させて、
上記上ハーフと下ハーフとを仮止めさせるように
構成したことを特徴とするテープカセツト。 A cassette housing composed of an upper half and a lower half, a pair of reels rotatably housed within the cassette housing, a tape wound and housed around both the reels, and an intermediate between the two reels. a cylindrical wall integrally molded into one of the upper and lower halves to surround the light emitting element insertion hole; In a tape cassette, the tape cassette has a pair of left and right window holes provided on both left and right sides of a cylindrical wall, and a pair of left and right photodetection windows provided on both left and right side walls of the cassette casing, facing the window holes. A half-reinforcing rib that also serves as a tape guide wall and has a substantially V-shaped planar shape that enters the intermediate portion of both reels is integrally molded with the cylindrical wall and on one half, and for this reinforcing purpose. A vertical locking hole is provided near the tip of the rib, and a screw fixing boss integrally molded on the other half of the upper and lower halves is press-fitted into the locking hole,
A tape cassette characterized in that the upper half and the lower half are temporarily attached.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983024173U JPS59130279U (en) | 1983-02-21 | 1983-02-21 | tape cassette |
| KR2019840000629U KR900007374Y1 (en) | 1983-02-21 | 1984-01-26 | Tape cassette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983024173U JPS59130279U (en) | 1983-02-21 | 1983-02-21 | tape cassette |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59130279U JPS59130279U (en) | 1984-09-01 |
| JPS6327323Y2 true JPS6327323Y2 (en) | 1988-07-25 |
Family
ID=30155229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983024173U Granted JPS59130279U (en) | 1983-02-21 | 1983-02-21 | tape cassette |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS59130279U (en) |
| KR (1) | KR900007374Y1 (en) |
-
1983
- 1983-02-21 JP JP1983024173U patent/JPS59130279U/en active Granted
-
1984
- 1984-01-26 KR KR2019840000629U patent/KR900007374Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR900007374Y1 (en) | 1990-08-13 |
| JPS59130279U (en) | 1984-09-01 |
| KR840006386U (en) | 1984-12-03 |
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