JPH0353720B2 - - Google Patents
Info
- Publication number
- JPH0353720B2 JPH0353720B2 JP4576083A JP4576083A JPH0353720B2 JP H0353720 B2 JPH0353720 B2 JP H0353720B2 JP 4576083 A JP4576083 A JP 4576083A JP 4576083 A JP4576083 A JP 4576083A JP H0353720 B2 JPH0353720 B2 JP H0353720B2
- Authority
- JP
- Japan
- Prior art keywords
- cassette
- tape
- shielding plate
- opening
- cassette body
- 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
- 238000004804 winding Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 208000031872 Body Remains Diseases 0.000 description 1
- 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
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 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
- G11B23/087—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends using two different reels or cores
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、カセツト本体内に装填された磁気テ
ープの保護を図るようになしたテープカセツトに
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tape cassette designed to protect the magnetic tape loaded in the cassette body.
従来、コンパクトカセツトと称される標準形の
テープカセツトは、一対の上部ハーフと下部ハー
フとを一体的に結合して構成されるカセツト本体
内に一対のテープリールを回転自在に取付けこれ
らテープリール間に亘つて磁気テープを巻装して
収納するとともに、カセツト本体の前面側に上記
磁気テープとして摺接して記録再生を行なう磁気
ヘツドやキヤプスタント協動として上記磁気テー
プの定速走行を図るピンチローラ等が進入する開
口部を設けて構成されている。
Conventionally, a standard tape cassette called a compact cassette has a pair of tape reels rotatably mounted inside the cassette body, which is constructed by integrally joining a pair of upper and lower halves. The magnetic tape is wound and stored over the cassette body, and there are also a magnetic head that records and plays the magnetic tape by sliding it on the front side of the cassette body, and a pinch roller that runs the magnetic tape at a constant speed in cooperation with the capstan. It is configured with an opening through which it enters.
このような構成を有するテープカセツトにあつ
ては、カセツト本体の前面に設けた磁気ヘツド、
ピンチローラ等の進入する開口部は比較的大きく
人の指等が容易に入る程度に形成されているた
め、該テープカセツトの取扱い中にしばしば上記
開口部を介して人の指がカセツト本体内の磁気テ
ープに触れることがあり、該磁気テープに指紋等
の油脂成分が付着する虞れがある。このような指
紋等の油脂成分が磁気テープに付着すると、記録
再生時に記録再生信号の欠落を生じ良好な記録再
生を行なえなくなつてしまう。 A tape cassette with such a configuration has a magnetic head provided on the front of the cassette body,
The opening into which the pinch rollers etc. enter is relatively large and formed to the extent that a person's finger can easily fit therein, so that when handling the tape cassette, a person's finger often passes through the opening and ends up inside the cassette body. The magnetic tape may be touched, and there is a risk that oil and fat components such as fingerprints may adhere to the magnetic tape. If such oily components such as fingerprints adhere to the magnetic tape, recording/reproduction signals may be lost during recording/reproduction, making it impossible to perform good recording/reproduction.
特に、この種のテープカセツトを、音響信号等
のアナログ信号がパルスコードしたPCM信号に
変換して記録し又はこれを再生するようになした
PCM記録再生装置の記録媒体として用いたよう
な場合に、指紋等の油脂成分の付着による記録再
生信号の欠落が著しいものとなつてしまう。 In particular, this type of tape cassette is used to convert analog signals such as audio signals into pulse-coded PCM signals for recording or playback.
When used as a recording medium for a PCM recording/reproducing device, the recording/reproducing signal is significantly missing due to the adhesion of oil and fat components such as fingerprints.
そこで、本発明は上述の如き問題点に鑑みカセ
ツト本体内に装填された磁気テープに不用意に指
が触れ指紋等の油脂成分が上記磁気テープに付着
するようになし、磁気テープの保護を図り得るテ
ープカセツトを提供することを目的とする。
Therefore, in view of the above-mentioned problems, the present invention aims to protect the magnetic tape by making it possible for fingers to touch the magnetic tape loaded in the cassette main body and oil components such as fingerprints to adhere to the magnetic tape. The purpose of the present invention is to provide a tape cassette that obtains the desired results.
本発明は上記目的を達成するため、磁気テープ
が巻装される一対のテープリールを内蔵するとと
もに前面側に磁気ヘツド、ピンチローラ等が進入
する複数の開口部を設たカセツト本体と、上記各
開口部に対応する複数の透孔が穿設され一端部に
押圧操作片を設けた遮蔽板とを有し、該遮蔽板は
押圧操作片を上記前面側側部に設けた装置本体側
に設けられる上記遮蔽板を押圧操作する操作子が
進入する溝部に臨ませ上記カセツト本体の開口部
内側面側に摺動自在に配設されるとともに上記カ
セツト本体に設けた付勢手段により押圧付勢され
上記各透孔と各開口部を非対応状態となして上記
開口部を遮蔽するようになしたものである。
In order to achieve the above object, the present invention includes a cassette main body which incorporates a pair of tape reels for winding magnetic tape and has a plurality of openings on the front side through which magnetic heads, pinch rollers, etc. enter, and and a shielding plate provided with a plurality of through holes corresponding to the openings and a pressing operation piece at one end, and the shielding plate is provided on the device main body side with the pressing operation piece provided on the front side side. The shielding plate is slidably disposed on the inner side of the opening of the cassette body, facing the groove into which the operator for pressing the shielding plate enters, and is pressed and biased by the biasing means provided on the cassette body. Each through hole and each opening are made to be in a non-corresponding state so that the opening is shielded.
以下、本発明の一実施例を図面を参照して説明
する。
Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
本発明によるテープカセツトは、例えば合成樹
脂のモールド成形によつて形成される上部ハーフ
1と下部ハーフ2とを一体的に組合せてなるカセ
ツト本体3を有している。すなわち、このカセツ
ト本体3は、上部ハーフ1及び下部ハーフ2とを
突合せ、これらハーフ1及び2にそれぞれ設けた
ビス挿通用の孔4を設けたボス部にビスを螺合し
あるいは軸を嵌着し、上記上部及び下部ハーフ
1,2を一体的に結合することによつて構成され
る。このカセツト本体3内には、テープレコーダ
側に設けられるリール駆動軸が嵌合するハブを有
し所定量の磁気テープ5が巻装される一対のテー
プリール6,7が回転自在に取付けられている。
なお、一対のテープリール6,7間に巻装された
磁気テープ5は、下部ハーフ2の底壁に植立した
ガイドピン及びカセツト本体3の前面側両側端に
設けられるガイドローラにガイドされて上記一対
のテープリール6,7間を往復走行される。 The tape cassette according to the present invention has a cassette body 3 formed by integrally combining an upper half 1 and a lower half 2 formed by molding, for example, synthetic resin. That is, this cassette main body 3 is made by butting the upper half 1 and the lower half 2, and screwing a screw or fitting a shaft into a boss portion provided with a screw insertion hole 4 provided in each of the halves 1 and 2. However, it is constructed by integrally joining the upper and lower halves 1 and 2. Inside the cassette body 3, a pair of tape reels 6 and 7, each having a hub into which a reel drive shaft provided on the tape recorder side is fitted, is rotatably mounted, and a predetermined amount of magnetic tape 5 is wound thereon. There is.
The magnetic tape 5 wound between the pair of tape reels 6 and 7 is guided by guide pins installed on the bottom wall of the lower half 2 and guide rollers provided at both ends of the front side of the cassette body 3. The tape is reciprocated between the pair of tape reels 6 and 7.
上述のように磁気テープ5を装填してなるカセ
ツト本体3の前面側位置には、上面及び下面に連
通する円形の一対のキヤプスタン挿通孔8,8が
設けられるとともに、これらキヤプスタン挿通孔
8,8に近接してその外側方にテープレコーダ側
に設けられる位置決めピンが挿通する位置決め用
貫通孔9,9が同じくカセツト本体3の上面及び
下面に連通するように設けられている。 A pair of circular capstan insertion holes 8, 8 communicating with the upper and lower surfaces are provided at the front side of the cassette body 3 loaded with the magnetic tape 5 as described above, and these capstan insertion holes 8, 8 Positioning through holes 9, 9, through which positioning pins provided on the tape recorder side are inserted, are provided adjacent to and outwardly thereof so as to communicate with the upper and lower surfaces of the cassette body 3.
また、上記カセツト本体3の前面側には、磁気
ヘツドが進入する中央開口部10を中心にして左
右対称にピンチローラ等が進入する開口部11,
12,13,14が設けられている。なお、上記
中央開口部10に対応する位置には、図示しない
が磁気テープ5を支持するパツドを備えたリーフ
スプリングが配設される。 Further, on the front side of the cassette main body 3, openings 11 into which pinch rollers and the like enter are symmetrical with respect to the central opening 10 into which the magnetic head enters.
12, 13, and 14 are provided. Although not shown, a leaf spring provided with a pad for supporting the magnetic tape 5 is disposed at a position corresponding to the central opening 10.
そして、本発明によるテープカセツトは、上述
のように構成されたカセツト本体3と、このカセ
ツト本体3の前面側に設けた開口部10,11,
12,13,14の内側面側に摺動自在に配設さ
れる遮蔽板15とから構成される。この遮蔽板1
5は、燐青銅等の非磁性金属により厚さが0.3〜
0.4mmの板状に形成され、その長手方向にそつて
上記カセツト本体3の中央開口部10及びその他
の開口部11,12,13,14にそれぞれ対応
する透孔16,17,18,19,20が穿設さ
れるとともに、一端部に設けた突片を折曲げて形
成される押圧操作片21が設けられている。この
ように形成された遮蔽板15は、上記押圧操作片
21をカセツト本体3の前面側両側部に対称に設
けられる当該テープカセツトが装着されるテープ
レコーダである装置本体側に設けられる該遮蔽板
15を押圧操作する操作子が進入する溝部22,
23の一方臨ませ、上記カセツト本体3の各開口
部10,11,12,13,14の内側面側にそ
つて摺動自在に配設される。 The tape cassette according to the present invention includes a cassette main body 3 configured as described above, and openings 10, 11 provided on the front side of the cassette main body 3.
12, 13, and 14, and a shielding plate 15 that is slidably disposed on the inner side of the shielding plates 12, 13, and 14. This shielding plate 1
5 is made of non-magnetic metal such as phosphor bronze and has a thickness of 0.3~
Through holes 16, 17, 18, 19 are formed in a plate shape of 0.4 mm and correspond to the central opening 10 and other openings 11, 12, 13, 14 of the cassette main body 3, respectively, along its longitudinal direction. 20 is perforated, and a pressing operation piece 21 formed by bending a protruding piece provided at one end is provided. The shielding plate 15 formed in this manner has the pressing operation piece 21 symmetrically provided on both sides of the front side of the cassette body 3, and is similar to the shielding plate provided on the main body side of the device, which is a tape recorder, to which the tape cassette is installed. a groove 22 into which an operator for pressing 15 enters;
23, and is slidably disposed along the inner side of each opening 10, 11, 12, 13, 14 of the cassette main body 3.
ところで、カセツト本体3の前面両側に設けら
れる溝部22,23は、カセツト本体3の両側面
側を開放となした凹状の溝として形成され、一方
の溝部22と側端に位置する開口部11とを連設
する部分には、遮蔽板15の押圧操作片21を設
けた側の端部が挿通するスリツト24が穿設され
ている。さらにカセツト本体3の開口部10,1
1,12,13,14の内側面側には、第2図に
示すように各開口部10,11,12,13,1
4の連設部25と相対向して遮蔽板15の両側が
挿入係合される挿入溝26を形成する突片27が
設けられている。これら突片27は上部及び下部
ハーフ1,2の主面から突設するようにして設け
られる。 By the way, the grooves 22 and 23 provided on both sides of the front surface of the cassette body 3 are formed as concave grooves with both sides of the cassette body 3 open. A slit 24 is formed in the portion where the shielding plate 15 is provided with the pressing operation piece 21, through which the end of the shielding plate 15 is inserted. Furthermore, the openings 10, 1 of the cassette body 3
1, 12, 13, 14, each opening 10, 11, 12, 13, 1
A projecting piece 27 is provided facing the connecting portion 25 of No. 4 and forming an insertion groove 26 into which both sides of the shielding plate 15 are inserted and engaged. These projecting pieces 27 are provided so as to project from the main surfaces of the upper and lower halves 1 and 2.
そして、遮蔽板15は、押圧操作片21を上記
スリツト24に挿通して一方の溝部22に臨ま
せ、上記挿入溝26に両側に挿入係合して第2図
に示すように配設することによりカセツト本体3
の各開口部10,11,12,13,14の内側
面にそつて摺動自在に配設される。 The shielding plate 15 is arranged as shown in FIG. 2 by inserting the pressing operation piece 21 through the slit 24 so as to face one of the grooves 22, and by inserting and engaging the insertion groove 26 on both sides. The cassette body 3
The openings 10, 11, 12, 13, and 14 are slidably disposed along the inner surfaces of the openings 10, 11, 12, 13, and 14, respectively.
また、このようにカセツト本体3内に配設され
る遮蔽板15は、上部ハーフ2の内側面側に取付
けられる付勢手段としてのねじりコイルバネ28
により押圧操作片21を設けた側方へ押圧付勢さ
れる。このねじりコイルバネ28は、例えば上部
ハーフ2の内側面に突設した支持ピン29にコイ
ル部を挿通し、一端28aを遮蔽板15の一側に
設けた係合凹部30に係合させ、他端28bを上
部ハーフ2の内側面に設けた係止部31に係止さ
せて取付けられることにより、上記遮蔽板15を
押圧操作片21を設けた側方(第3図中矢印A方
向)に付勢している。 Further, the shielding plate 15 disposed inside the cassette body 3 in this manner is supported by a torsion coil spring 28 as a biasing means attached to the inner surface side of the upper half 2.
As a result, the pressing operation piece 21 is pressed toward the side where the pressing operation piece 21 is provided. The torsion coil spring 28 has its coil portion inserted through a support pin 29 protruding from the inner surface of the upper half 2, and has one end 28a engaged with an engagement recess 30 provided on one side of the shielding plate 15, and the other end 28b is attached to the locking portion 31 provided on the inner surface of the upper half 2, so that the shielding plate 15 is attached to the side where the pressing operation piece 21 is provided (in the direction of arrow A in FIG. 3). It is strong.
上記遮蔽板15は、ねじりコイルバネ28によ
り付勢された状態にあるとき、第3図に示すよう
にカセツト本体3の各開口部10,11,12,
13,14と透孔16,17,18,19,20
とがそれぞれ非対応状態となつてこれら透孔1
6,17,18,19,20間の連設部が上記各
開口部10,11,12,13,14に臨み、少
なくともこれら開口部10,11,12,13,
14を介してカセツト本体3内に指等が入つて磁
気テープ5に触れないように遮蔽する。そして、
遮蔽板15はねじりコイルバネ28の付勢力に抗
して押圧操作片21が押圧操作されると第3図中
反矢印A方向に摺動され、各透孔16,17,1
8,19,20とカセツト本体3の各開口部1
0,11,12,13,14との対応が図られ、
これら開口部10,11,12,13,14が開
放された状態に至る。 When the shielding plate 15 is biased by the torsion coil spring 28, the openings 10, 11, 12 of the cassette body 3,
13, 14 and through holes 16, 17, 18, 19, 20
are in a non-corresponding state, and these through holes 1
6, 17, 18, 19, 20 faces each of the openings 10, 11, 12, 13, 14, and at least these openings 10, 11, 12, 13,
14 to prevent fingers or the like from entering the cassette body 3 and touching the magnetic tape 5. and,
When the pressing operation piece 21 is pressed against the biasing force of the torsion coil spring 28, the shielding plate 15 slides in the opposite direction of arrow A in FIG.
8, 19, 20 and each opening 1 of the cassette body 3
Correspondence with 0, 11, 12, 13, 14 is planned,
These openings 10, 11, 12, 13, and 14 reach an open state.
上述の如き構成を有する本発明によるテープカ
セツトTが装着されるテープレコーダに、第4図
及び第5図に示す如き遮蔽板開放機構を設けるこ
とにより上記遮蔽板15はテープカセツトTの装
着操作に関連して自動的に開閉操作される。 By providing a shielding plate opening mechanism as shown in FIGS. 4 and 5 in a tape recorder to which the tape cassette T according to the present invention having the above-mentioned structure is mounted, the shielding plate 15 can be easily used for mounting the tape cassette T. Automatic opening/closing operations are performed accordingly.
この遮蔽板開放機構は、テープカセツトTが第
4図に示すようにテープレコーダ内の位置決め支
持部32に位置決め支持され所定のカセツト装置
部に装着されたとき、上記テープカセツトTによ
り押圧操作され該テープカセツトTの装着があつ
たことを検出する検出スイツチ33と、第5図に
示すように上記装着されたテープカセツトTの両
側の溝部22,23と対向する位置にこれらの溝
部22,23に進入して遮蔽板15の押圧操作片
21を押圧操作する操作子34を先端に設け支軸
35を中心にして回動自在となされた一対の操作
レバー36,37と、これら操作レバー36,3
7を回動操作する一対の直杆レバー38,39と
一対のL字状レバー40,41からなるリンク機
構と、上記検出出力が入力されて動作し上記リン
ク機構を操作するソレノイドプランジヤー42と
から構成されている。上記リンク機構は、折曲部
を支軸43に枢支して回動自在とされた一対L字
状レバー40,41の一端をソレノイドプランジ
ヤー42の駆動軸44に取付け、上記L字状レバ
ー38,39の他端と操作レバー36,37の中
途部間にそれぞれ直杆レバー38,39を連結し
て構成され、上記一対のL字状レバー40,41
の他端間に圧縮コイルバネ45を張設するとによ
り、上記操作レバー36,37先端の操作子34
をそれぞれ第5図中破線で示す如くテープカセツ
トTの側方向へ逃げるように回動付勢するように
なしている。そして、テープカセツトTが装着さ
れ、検出スイツチ33操作されて検出出力がソレ
ノイドプランジヤー42に入力されると、ソレノ
イドプランジヤー42は駆動軸44を引き付ける
ように動作し、L字状レバー40,41を圧縮コ
イルバネ45の圧縮力に抗して回動させ、直杆レ
バー38,39を介して操作レバー36,37を
回動させるとこれら操作レバー36,37の先端
に設けた操作子34がテープカセツトTの各溝部
22,23に臨み、いずれか一方の操作子34に
より遮蔽板15の押圧操作片21を押圧し上記遮
蔽板15をねじりコイルバネ28に抗して摺動さ
せ、各透孔16,17,18,19,20とカセ
ツト本体3の各開口部10,11,12,13,
14との対応を図りこれら開口部10,11,1
2,13,14を開放し、カセツト本体3内への
磁気ヘツド、ピンチローラ等の進入を可能とな
す。 This shielding plate opening mechanism is operated by pressing the tape cassette T when the tape cassette T is positioned and supported by the positioning support part 32 in the tape recorder and installed in a predetermined cassette device part as shown in FIG. A detection switch 33 detects whether the tape cassette T has been installed, and a detection switch 33 is installed in the grooves 22, 23 at positions facing the grooves 22, 23 on both sides of the installed tape cassette T, as shown in FIG. A pair of operating levers 36 and 37 are provided with an operating element 34 at the tip thereof and are rotatable about a support shaft 35, and these operating levers 36 and 3
a link mechanism consisting of a pair of straight rod levers 38, 39 and a pair of L-shaped levers 40, 41, which rotate and operate the solenoid plunger 42, which operates upon receiving the detection output and operates the link mechanism. It consists of In the link mechanism, one end of a pair of L-shaped levers 40 and 41, which are rotatable by pivoting a bent portion on a support shaft 43, is attached to a drive shaft 44 of a solenoid plunger 42, and the L-shaped lever The pair of L-shaped levers 40, 41 are constructed by connecting straight rod levers 38, 39 between the other ends of the operating levers 38, 39 and the midpoints of the operating levers 36, 37, respectively.
By tensioning the compression coil spring 45 between the other ends, the operator 34 at the tip of the operating levers 36, 37
As shown by broken lines in FIG. 5, each of the tape cassettes T is rotated and biased so as to escape toward the side of the tape cassette T. Then, when the tape cassette T is attached and the detection switch 33 is operated to input the detection output to the solenoid plunger 42, the solenoid plunger 42 operates to attract the drive shaft 44, and the L-shaped levers 40, 41 is rotated against the compression force of the compression coil spring 45, and the operating levers 36, 37 are rotated via the straight rod levers 38, 39. Facing each of the grooves 22 and 23 of the cassette T, press the pressing operation piece 21 of the shielding plate 15 with one of the operators 34 to slide the shielding plate 15 against the torsion coil spring 28, and open each through-hole 16. , 17, 18, 19, 20 and each opening 10, 11, 12, 13 of the cassette body 3,
14, these openings 10, 11, 1
2, 13, and 14 are opened to allow the magnetic head, pinch roller, etc. to enter into the cassette body 3.
なお、上述の説明では、上下面を使用可能とし
たテープカセツトの例を挙げたので、溝部22,
23をカセツト本体3の両側に設け、遮蔽板開放
機構の操作子34を設けた操作レバー36,37
を一対設けるようにしているが、片面のみと使用
するテープカセツトにあつては、遮蔽板15の押
圧操作片21の臨む溝部のみを設け、上記操作レ
バーも該溝部に臨むもの1つを設けるだけで良
い。 In addition, in the above explanation, an example of a tape cassette in which the upper and lower surfaces can be used has been given, so the groove portions 22,
23 are provided on both sides of the cassette body 3, and operating levers 36, 37 are provided with an operator 34 of the shielding plate opening mechanism.
However, in the case of a tape cassette that is used only on one side, only the groove portion of the shielding plate 15 facing the pressing operation piece 21 is provided, and one of the operation levers is provided facing the groove portion. That's fine.
上述したように本発明によるテープカセツト
は、遮蔽板を付勢手段に抗して摺動操作しない限
りカセツト本体の開口部は上記遮蔽板により遮蔽
された状態におかれるので、上記開口部を介して
人の指がカセツト本体内に挿入されるのを防止し
磁気テープに指紋等の油脂成分の付着を防止でき
るので確実な磁気テープの保護が図られ、上記油
脂成分の磁気テープへの付着による記録再生信号
の欠落の防止を達成し、常に記録再生特性の良好
な状態を維持できるテープカセツトの提供が可能
となる。
As described above, in the tape cassette according to the present invention, unless the shielding plate is slid against the biasing means, the opening of the cassette main body remains shielded by the shielding plate. This prevents a person's finger from being inserted into the cassette body, and prevents oily components such as fingerprints from adhering to the magnetic tape, ensuring reliable protection of the magnetic tape. It becomes possible to provide a tape cassette that can prevent dropouts in recording and reproduction signals and always maintain good recording and reproduction characteristics.
第1図は本発明の一実施例を示す分解斜視図、
第2図は遮蔽板の取付け部分を示す平面図であ
り、第3図は全体斜視図であり、第4図は本発明
が装着されるテープレコーダの一例を示す概略側
面図であり、第5図は上記テープレコーダに設け
られる遮蔽板開放機構を示す平面図である。
3……カセツト本体、5……磁気テープ、1
0,11,12,13,14……開口部、15…
…遮蔽板、16,17,18,19,20……透
孔、21……押圧操作片、22,23……溝部、
28……ねじりコイルバネ。
FIG. 1 is an exploded perspective view showing an embodiment of the present invention;
FIG. 2 is a plan view showing the mounting portion of the shielding plate, FIG. 3 is an overall perspective view, FIG. 4 is a schematic side view showing an example of a tape recorder to which the present invention is installed, and FIG. The figure is a plan view showing a shielding plate opening mechanism provided in the tape recorder. 3...Cassette body, 5...Magnetic tape, 1
0, 11, 12, 13, 14... opening, 15...
...shielding plate, 16, 17, 18, 19, 20... through hole, 21... pressing operation piece, 22, 23... groove,
28...Torsion coil spring.
Claims (1)
を内蔵するとともに前面側に磁気ヘツド、ピンチ
ローラ等が進入する複数の開口部を設けたカセツ
ト本体と、上記各開口部に対応する複数の透孔が
穿設され一端部に押圧操作片を設けた遮蔽板とを
有し、該遮蔽板は押圧操作片を上記前面側側部に
設けた装置本体側に設けられる上記遮蔽板を押圧
操作する操作子が進入する溝部に臨ませ上記カセ
ツト本体の開口部内側面側に摺動自在に配設され
るとともに上記カセツト本体に設けた付勢手段に
より押圧付勢され上記各透孔と各開口部を非対応
状態となして上記開口部を遮蔽するようになした
テープカセツト。1. A cassette body containing a pair of tape reels for winding magnetic tape and having a plurality of openings on the front side through which magnetic heads, pinch rollers, etc. enter, and a plurality of through holes corresponding to each of the openings. and a shielding plate provided with a pressing operation piece at one end thereof, and the shielding plate is provided on the side of the main body of the device and the pressing operation piece is provided on the side of the front side. It is slidably disposed on the inner side of the opening of the cassette body facing the groove into which the child enters, and is pressed and biased by the biasing means provided in the cassette body to close each through hole and each opening. A tape cassette that is adapted to cover the opening.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4576083A JPS59171090A (en) | 1983-03-18 | 1983-03-18 | Tape cassette |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4576083A JPS59171090A (en) | 1983-03-18 | 1983-03-18 | Tape cassette |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59171090A JPS59171090A (en) | 1984-09-27 |
JPH0353720B2 true JPH0353720B2 (en) | 1991-08-15 |
Family
ID=12728248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4576083A Granted JPS59171090A (en) | 1983-03-18 | 1983-03-18 | Tape cassette |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59171090A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5161079A (en) * | 1990-01-19 | 1992-11-03 | Matsushita Electric Industrial Co., Ltd. | Tape cassette with slidable shutter |
JP2630004B2 (en) * | 1990-02-26 | 1997-07-16 | 松下電器産業株式会社 | Tape cassette mounting device |
-
1983
- 1983-03-18 JP JP4576083A patent/JPS59171090A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59171090A (en) | 1984-09-27 |
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