公开(公告)号：US4557380A

公开(公告)日：1985-12-10

申请号：US632147

申请日：1984-07-18

申请人： Choji Komiyama ,  Kengo Oishi ,  Osamu Suzuki ,  Yasumasa Iyota

发明人： Choji Komiyama ,  Kengo Oishi ,  Osamu Suzuki ,  Yasumasa Iyota

IPC分类号： C08L7/00 ,  C08L21/00 ,  C08L25/00 ,  C08L25/16 ,  C08L51/00 ,  C08L51/02 ,  C08L55/02 ,  G11B23/04 ,  B65D85/67

CPC分类号： C08L25/16 ,  Y10S206/819

摘要： A magnetic tape cassette system is described, comprising a magnetic tape cassette and a storage case therefor, wherein at least one of the magnetic tape cassette and the storage case is molded using a resin composition containing from 75 to 95% by weight of .alpha.-methylstyrene-acrylonitrile copolymer (A) and from 5 to 25% by weight of graft copolymer (B) obtained by reacting a polybutadiene-based rubber with monomers consisting of styrene and acrylonitrile, wherein said .alpha.-methylstyrene-acrylonitrile copolymer is a copolymer having a composition consisting of from 75 to 90% by weight of .alpha.-methylstyrene, from 10 to 25% by weight of acrylonitrile, and from 0 to 5% by weight of styrene, and 30% by weight or more of said .alpha.-methylstyrene-acrylonitrile copolymer is a copolymer component having a composition containing 82% by weight or more of .alpha.-methylstyrene.

摘要翻译： 描述了一种磁带盒系统，其包括磁带盒及其存放盒，其中使用含有75至95重量％的α-甲基苯乙烯的树脂组合物来模制磁带盒和存放盒中的至少一个 丙烯腈共聚物（A）和5〜25重量％的由聚丁二烯类橡胶与苯乙烯和丙烯腈组成的单体反应得到的接枝共聚物（B），其中所述α-甲基苯乙烯 - 丙烯腈共聚物是具有组成 由75至90重量％的α-甲基苯乙烯，10至25重量％的丙烯腈和0至5重量％的苯乙烯，以及30重量％以上的所述α-甲基苯乙烯 - 丙烯腈共聚物 是具有含有82重量％以上的α-甲基苯乙烯的组合物的共聚物成分。

公开(公告)号：US4544976A

公开(公告)日：1985-10-01

申请号：US447300

申请日：1982-12-06

申请人： Kengo Oishi ,  Choji Komiyama ,  Osamu Suzuki

发明人： Kengo Oishi ,  Choji Komiyama ,  Osamu Suzuki

IPC分类号： G11B23/087 ,  G11B23/04 ,  G11B15/60

CPC分类号： G11B23/047 ,  G11B23/043

摘要： A pad which is to be provided in the interior of a videotape cassette according to this invention is in the form of a hollow cylinder. When fitted in place in the interior of a videotape cassette, the cylindrical pad is yieldingly deformed to produce a resilient force, thereby pushing a videotape against an associated guide stud. Because of the cylindrical shape, the pad requires no large space to mount, and accordingly a videotape cassette can be substantially reduced in size. The cylindrical pad need only be pushed into place in the interior of a cassette housing, and this easy mounting is advantageous to the mass-production of videotape cassettes.

摘要翻译： 根据本发明设置在录像带盒内部的垫是中空圆柱体的形式。 当安装在录像带盒内部的适当位置时，圆柱形垫片变形变形以产生弹性力，从而将录像带推向相关联的导柱。 由于圆筒形状，垫不需要大的空间来安装，因此录像带的尺寸可以大大减小。 圆柱形垫片仅需要被推入盒壳体的内部，这样易于安装便于批量生产录像带。

公开(公告)号：US4389690A

公开(公告)日：1983-06-21

申请号：US232271

申请日：1981-02-06

申请人： Kengo Oishi ,  Osamu Suzuki ,  Choji Komiyama

发明人： Kengo Oishi ,  Osamu Suzuki ,  Choji Komiyama

IPC分类号： A47B13/12 ,  A47B37/00 ,  A47F3/00 ,  G11B23/087 ,  G11B23/04

CPC分类号： G11B23/08742

摘要： A miniturized video magnetic tape cassette of the type in which a magnetic tape wound on a pair of hubs in the hollow interior of a cassette casing is guided to run across a front opening formed in the casing along a rotatable front cover and in which the tape can be pulled out of the front opening in the cassette. The tape cassette includes locking mechanism having a supporting shaft fixed to a bottom wall of the casing and a hub rotatably mounted on the supporting shaft. An L-shaped locking lever extends from the hub and a first stop extends from the hub in a direction opposite that of the locking lever. A coil spring has a coil portion disposed around an upper portion of a hub in which a slit is formed. A first end of the coil spring is inserted into the slit while the second end abuts against an inner surface of a side wall of the casing.

摘要翻译： 一种小型化的视频磁带盒，其中缠绕在盒壳体的中空内部的一对轮毂上的磁带被引导以沿着可旋转的前盖穿过形成在壳体中的前开口，并且其中带 可以拉出盒式磁带的前开口。 带盒包括锁定机构，其具有固定到壳体的底壁的支撑轴和可旋转地安装在支撑轴上的轮毂。 L形锁定杆从轮毂延伸，并且第一止动件沿着与锁定杆的方向相反的方向从轮毂延伸。 螺旋弹簧具有围绕其中形成狭缝的毂的上部周围设置的线圈部分。 螺旋弹簧的第一端插入狭缝中，而第二端抵靠壳体的侧壁的内表面。

公开(公告)号：US4742417A

公开(公告)日：1988-05-03

申请号：US769649

申请日：1985-08-27

申请人： Choji Komiyama ,  Kengo Oishi

发明人： Choji Komiyama ,  Kengo Oishi

IPC分类号： G11B23/087 ,  G11B23/02

CPC分类号： G11B23/08735

摘要： A magnetic tape cassette particularly well adapted for use with digital audio magnetic tapes, which is small in size and easy to assemble. The cassette includes upper and lower half cases and a slide guard for covering a lower part of an opening through which the magnetic tape is extracted for recording and reproduction. The slide guard is in the form of a substantially U-shaped plate member having side pieces at its opposite ends which extend along side walls of the cassette. The slide guard is urged towards the front end of the cassette and is slidably mounted so as to be slidable forwardly and backwardly of the cassette. Overhangs are formed on upper edges of the side pieces of the slide guard confronting each other and which are received in the cassette through slits formed in the side walls of the cassette. Upper edges of the overhangs have the form of tapered surfaces inclined inwardly of the slide guard. The distance between the upper ends of the tapered surfaces is larger than the distance between the right and left parts of the lower half case on which the slide guard is mounted requiring flexing of the slide guard side pieces during mounting of the lower half case.

摘要翻译： 一种特别适用于数字音频磁带的磁带盒，尺寸小巧易于组装。 盒式磁带包括上半壳体和下半壳体，以及用于覆盖开口的下部的滑动护罩，磁带通过该下部提取用于记录和再现。 滑动防护罩呈基本上为U形的板件的形式，在其相对端具有沿着盒的侧壁延伸的侧片。 滑动护罩被推向盒的前端，并且可滑动地安装成可以向盒子前后方向滑动。 形成在彼此面对的滑动防护罩的侧片的上边缘上的突出部，并且通过形成在盒的侧壁中的狭缝容纳在盒中。 突出部分的上边缘具有向滑动护罩内侧倾斜的锥形表面。 锥形表面的上端之间的距离大于在安装下半壳的情况下安装滑动防护件需要滑动防护件侧片弯曲的下半壳体的左右部分之间的距离。

公开(公告)号：US4676453A

公开(公告)日：1987-06-30

申请号：US768610

申请日：1985-08-23

申请人： Choji Komiyama ,  Kengo Oishi

发明人： Choji Komiyama ,  Kengo Oishi

IPC分类号： G11B23/087 ,  G11B23/04 ,  G11B23/08

CPC分类号： G11B23/08742

摘要： A magnetic tape cassette of a type particularly useful for high density digital audio recording wherein the tape is positively protected from dust and other contamination. The cassette includes a pair of hubs on which the magnetic tape is wound, and a locking member for locking the hubs. An opening is provided through which the tape can be extracted for playing. A swingable guard panel is provided which closes the front part of the opening when the cassette is not in use, and a slidable slide guard closes the lower part of the opening. The locking member has locking parts engaged with annular parts formed on the hubs to prevent rotation of the hubs, the locking member being slidable in a direction forwardly and backwardly of the cassette. The slide guard is in the form of a plate slidable on the outer surface of the bottom of the cassette forwardly and backwardly. A compound spring is provided which has a fulcrum part locked to a boss formed in the cassette case and two arms extending from the fulcrum part. One of the two arms urges the locking member toward the rear end of the cassette, while the other arm urges the slide guide towards the front end of the cassette.

摘要翻译： 一种对于高密度数字音频记录特别有用的类型的磁带盒，其中带被积极地保护免受灰尘和其它污染。 盒式磁带包括一对磁带被卷绕在其上的毂，以及用于锁定轮毂的锁定构件。 提供了一个开口，通过该开口可以抽出磁带进行播放。 提供可摆动的防护面板，当不使用磁带时，封闭开口的前部，并且可滑动的滑动护罩封闭开口的下部。 锁定构件具有与形成在轮毂上的环形部分接合的锁定部件，以防止轮毂的旋转，锁定构件可沿盒子的前后方向滑动。 滑动防护装置是可滑动地在盒的底部的外表面上向前和向后滑动的板的形式。 提供了复合弹簧，其具有锁定到形成在盒壳体中的凸台的支点部分和从支点部分延伸的两个臂。 两个臂中的一个朝向盒的后端推动锁定构件，而另一个臂将滑动引导件推向盒的前端。

公开(公告)号：US4719529A

公开(公告)日：1988-01-12

申请号：US783397

申请日：1985-09-27

申请人： Kengo Oishi ,  Choji Komiyama

发明人： Kengo Oishi ,  Choji Komiyama

IPC分类号： G11B23/087 ,  G11B23/08

CPC分类号： G11B23/08742

摘要： A small sized tape cassette is provided with a slide guard which, when in the normal position, prevents the reel hubs from being inserted in the cassette. The guard panel of the cassette is interengaged with a reel locking mechanism which is automatically engaged when the guard panel is closed.

摘要翻译： 一个小尺寸的磁带盒设置有滑动护罩，当在正常位置时，防止卷轴毂插入盒中。 磁带盒的防护面板与保护面板关闭时自动接合的卷轴锁定机构互相接合。

公开(公告)号：US4706148A

公开(公告)日：1987-11-10

申请号：US769645

申请日：1985-08-27

申请人： Choji Komiyama ,  Kengo Oishi

发明人： Choji Komiyama ,  Kengo Oishi

IPC分类号： G11B23/087 ,  G11B23/04 ,  G11B15/60

CPC分类号： G11B23/08785 ,  G11B23/08757

摘要： A magnetic tape cassette of the type in which the tape is extracted from the cassette through tape drawing openings formed at opposite sides of a central opening in the cassette for recording and reproducing. In accordance with the invention, each of the tape drawing openings in a rectangular opening defined by a lower rib protruding from the lower half case and confronting one edge of the magnetic tape, a guide formed integrally with the lower rib and having a sliding surface with which a rear surface of the magnetic tape contacts, an upper rib protruding from the upper half case and confronting the other edge of the magnetic tape, and a cassette case wall confronting a front surface of the magnetic tape. The upper rib is recessed farther inwardly of the guide than the sliding surface.

摘要翻译： 一种磁带盒，其中通过形成在盒中的中央开口的相对侧的条带拉出开口将带从盒中取出，用于记录和再现。 根据本发明，由下半壳突出并且面对磁带的一个边缘的下肋限定的矩形开口中的每个磁带引导开口，与下肋一体地形成的引导件，并具有滑动表面， 磁带的后表面接触，从上半壳突出并面对磁带的另一边缘的上肋，以及面对磁带前表面的盒壳壁。 上凸肋比滑动面更向内凹进。

公开(公告)号：US4427166A

公开(公告)日：1984-01-24

申请号：US224238

申请日：1981-01-12

申请人： Kengo Oishi ,  Masayoshi Moriwaki ,  Choji Komiyama

发明人： Kengo Oishi ,  Masayoshi Moriwaki ,  Choji Komiyama

IPC分类号： G11B15/60 ,  G11B23/087 ,  G03B1/04 ,  B65H23/04 ,  G11B15/32

CPC分类号： G11B23/08757

摘要： A magnetic tape cassette for either video or audio tapes in which creasing of the tape during high speed running is prevented. Tape guide members are provided having grooves in the circumferential surface thereof. The grooves can be provided by cutting or molding them into a rod-shaped member or by a tightly wound wire. The guide member can be either mounted in a fixed position or rotatably between the two cassette casing halves.

摘要翻译： 用于视频或音频磁带的磁带盒，其中防止在高速运行期间磁带的折痕。 带引导构件在其圆周表面上设置有凹槽。 可以通过将其切割或模制成棒状构件或通过紧密缠绕的线来提供凹槽。 引导构件可以安装在固定位置或可旋转地安装在两个盒式磁带盒半部之间。

公开(公告)号：US4743992A

公开(公告)日：1988-05-10

申请号：US769648

申请日：1985-08-27

申请人： Choji Komiyama ,  Kengo Oishi

发明人： Choji Komiyama ,  Kengo Oishi

IPC分类号： G11B23/087 ,  G11B23/04

CPC分类号： G11B23/08735

摘要： A magnetic tape cassette, particularly well adapted for high-density recording applications, in which the entry of dust and other contaminants is positively prevented. The cassette includes upper and lower half cases and a slide guard for closing an opening through which the tape can be extracted for recording and reproduction. The slide guard is in the form of a plate and is mounted so as to be slidable forwardly and backwardly of the cassette. A spring is provided to bias the slide guard towards the front end of the cassette. Protrusions are formed on the inner surface of the slide guard so as to be slidably in contact with the outer surface of the lower half case.

摘要翻译： 特别适用于高密度记录应用的磁带盒，其中积极地防止了灰尘和其它污染物的进入。 盒子包括上下半壳体和用于封闭开口的滑动防护罩，通过该开口可以提取带子用于记录和再现。 滑动防护罩为板的形式，并安装成能够向盒前方和后方滑动。 提供弹簧以将滑动护罩朝向盒的前端偏置。 在滑动护罩的内表面上形成突起，以便与下半壳的外表面可滑动地接触。

公开(公告)号：US4742416A

公开(公告)日：1988-05-03

申请号：US780759

申请日：1985-09-27

申请人： Kengo Oishi ,  Choji Komiyama

发明人： Kengo Oishi ,  Choji Komiyama

IPC分类号： G11B23/087 ,  G11B23/02

CPC分类号： G11B23/08735

摘要： A miniature audio tape cassette is provided with a slide guard which normally covers the reel insertion holes of the cassette when the cassette is not in use. The slide guard is engaged with the cassette body by inserting portions of the same between the assembled upper and lower cassette halves. In one embodiment, the slide guard is provided with an engaging part which includes a portion slidable along the inside surface of the upper cassette half. The upper surface of this sliding portion is tapered in order to facilitate assembly of the slide guard, the upper cassette half, and the lower cassette half. According to a second embodiment, the slide guard is provided with inwardly extending portions which form overhangs with respect to the lower cassette halves. The engaging portion abuts against a flanged surface of the upper cassette half and has a tapered portion which engages a similarly tapered surface of the sides of the lower cassette halves. Alternatively, the overhang may be provided in a shape of a cup, forming a groove, and the flat upper surfaces of the side walls of the lower cassette body are slidably received within the groove so formed.

摘要翻译： 微型音频磁带盒设置有滑动防护件，当磁带盒不使用时，其通常覆盖磁带盒的磁盘插入孔。 滑动护罩通过将其部分插入在组合的上部和下部半盒之间而与盒体接合。 在一个实施例中，滑动护罩设置有接合部分，该接合部分包括沿着上半盒体的内表面可滑动的部分。 该滑动部分的上表面是锥形的，以便于滑动护罩，上半盒和下半盒的组装。 根据第二实施例，滑动护罩设置有向下延伸的部分，其相对于下半盒体形成悬伸。 接合部分抵靠上半盒的凸缘表面，并且具有锥形部分，该锥形部分接合下半盒体两侧的类似的锥形表面。 或者，突出部可以设置成杯状，形成凹槽，并且下盒体的侧壁的平坦的上表面可滑动地容纳在如此形成的凹槽内。