公开(公告)号：US5255144A

公开(公告)日：1993-10-19

申请号：US853869

申请日：1992-03-20

申请人： Yuji Iwahashi ,  Kiyoshi Urayama ,  Toshihiro Watanabe ,  Shinya Sato ,  Masanori Tanaka

发明人： Yuji Iwahashi ,  Kiyoshi Urayama ,  Toshihiro Watanabe ,  Shinya Sato ,  Masanori Tanaka

IPC分类号： G11B23/087 ,  G11B23/02

CPC分类号： G11B23/08721

摘要： A reel brake device for a tape reel of a magnetic tape cassette has a pair of braking strips for a supply reel and a take-up reel. The braking strips are formed with at least one hinged section to allow resilient deformation in order to absorb kinematic energy exerted on the braking strips from the tape reel as the reel is subjected to rotational torque or lateral force. By providing the capability of resilient deformation for the braking strips, braking engagement can be maintained even when vibration exerting rotational force is applied to the tape reels.

摘要翻译： 用于磁带盒的磁带卷盘的卷轴制动装置具有用于供带盘和卷取卷轴的一对制动条。 制动条形成有至少一个铰接部分，以允许弹性变形，以便当卷轴受到旋转扭矩或横向力时，吸收从带卷轴施加在制动条上的运动能。 通过为制动带提供弹性变形的能力，即使当对卷筒施加施加旋转力的振动时，也可以保持制动接合。

公开(公告)号：US4945440A

公开(公告)日：1990-07-31

申请号：US195876

申请日：1988-05-19

申请人： Yuji Iwahashi ,  Kiyoshi Urayama ,  Shinya Sato

发明人： Yuji Iwahashi ,  Kiyoshi Urayama ,  Shinya Sato

IPC分类号： G11B23/113 ,  B29C45/16 ,  G11B23/087 ,  G11B23/08

CPC分类号： G11B23/08785 ,  B29C45/16 ,  G11B23/0875 ,  B29K2995/0025 ,  B29K2995/0026

摘要： A tape cassette for video or audio units which consists of a housing having an upper half and a lower half, the upper half being composed mainly of an opaque material, the upper half having a transparent window portion on the upper wall thereof. A cover portion is laminated to the upper half, the cover portion being composed of a transparent material, the window portion consisting of a single layer of the transparent material, with an additional portion of the upper half formed of a double layer of the transparent material and the opaque material.

摘要翻译： 一种用于视频或音频单元的盒式磁带，包括具有上半部和下半部的壳体，上半部分主要由不透明材料构成，上半部在其上壁上具有透明窗口部分。 覆盖部分层压到上半部，盖部分由透明材料构成，窗口部分由单层透明材料组成，上半部分的另外部分由双层透明材料形成 和不透明材料。

公开(公告)号：US4901171A

公开(公告)日：1990-02-13

申请号：US174206

申请日：1988-03-28

申请人： Kiyoshi Urayama ,  Shinya Sato ,  Yuji Iwahashi

发明人： Kiyoshi Urayama ,  Shinya Sato ,  Yuji Iwahashi

IPC分类号： G11B23/30 ,  G11B15/18 ,  G11B23/04 ,  G11B23/087

CPC分类号： G11B23/0875 ,  G11B23/08714

摘要： A tape cassette arrangement includes structures formed integrally with the cassette halves or simply fitted into the light transmission apertures. Specific embodiments of the invention include light polarizing elements which are fitted into apertures formed in the sides of the cassette, corrugations on the interior of the cassette proximate the apertures, and shielding walls which are located to block light and in particular that light which tends to enter through a large window provided in the upper surface of the cassette and through which the status of the tape is visible.

公开(公告)号：US5405007A

公开(公告)日：1995-04-11

申请号：US202699

申请日：1994-02-25

申请人： Yuji Iwahashi

发明人： Yuji Iwahashi

IPC分类号： B65D85/575 ,  G11B23/023 ,  B65D85/672

CPC分类号： G11B23/0233

摘要： A tape cassette case for accommodating therein a tape cassette is increased in airtight property and is also prevented from being damaged when dropped. Further, this tape cassette case is a high-class tape cassette and excellent in external appearance. A case body portion (1) and a lid portion (2) are molded by a dichromatic molding process of a polypropylene (3) and a thermoplastic elastomer (4) serving as a surface material of the polypropylene (3). Of contact portions of the case body portion (1) and the lid portion (2), the contact portion of the case body portion (1) is molded by the thermoplastic elastomer (4) and the contact portion of the lid portion (2) is molded by the polypropylene (3).

摘要翻译： 用于在其中容纳带盒的盒式磁带盒增加了气密性，并且也防止了在掉落时被损坏。 此外，该盒式磁带盒是高档磁带盒，外观优异。 通过聚丙烯（3）和用作聚丙烯（3）的表面材料的热塑性弹性体（4）的二色成型工艺来模制壳体部分（1）和盖部分（2）。 壳体部分（1）和盖部分（2）的接触部分之间，壳体部分（1）的接触部分由热塑性弹性体（4）和盖部分（2）的接触部分模制， 由聚丙烯（3）模制。

公开(公告)号：US5174520A

公开(公告)日：1992-12-29

申请号：US388653

申请日：1989-08-02

申请人： Yuji Iwahashi

发明人： Yuji Iwahashi

IPC分类号： G11B23/037 ,  G11B23/087

CPC分类号： G11B23/08728 ,  G11B23/037

摘要： A tape cassette reel having an upper flange portion and a lower flange portion formed as one body with a reel hub, in which the central portion of the upper flange portion is made of an opaque resin and a peripheral portion thereof is made of a transparent resin by a dichromatic molding process and a stepped portion is formed on a bonding surface between the central portion and the peripheral portion of the upper flange portion so as to increase a bonding strength of the bonding surface.

公开(公告)号：US5007596A

公开(公告)日：1991-04-16

申请号：US452203

申请日：1989-12-18

申请人： Yuji Iwahashi

发明人： Yuji Iwahashi

IPC分类号： G11B23/037 ,  G11B23/087

CPC分类号： G11B23/08728 ,  G11B23/037

摘要： A tape cassette reel of the type having an opaque, upper flange portion which is bonded to an outer peripheral flange portion and to an integrally formed lower flange portion and reel hub, wherein a shock-absorbing rib portion is formed on a radially inner surface of the outer peripheral flange portion so as to oppose an end face of the reel hub, and a pouring gate mark is formed on the radially inner side of the shock-absorbing rib portion during molding of the outer peripheral flange portion.

公开(公告)号：US5506739A

公开(公告)日：1996-04-09

申请号：US366010

申请日：1994-12-29

申请人： Yuji Iwahashi

发明人： Yuji Iwahashi

IPC分类号： G11B23/087

CPC分类号： G11B23/08721

摘要： A tape cassette having a reel lock mechanism which includes a slider adapted to slide in frontward and rearward directions within a cassette housing; a pair of lock pawls adapted to engage with outer circumferential toothed portions of a pair of reels to lock rotation of the reels in tape slacking directions, the lock pawls being rotatably mounted on the slider; a first spring for biasing the lock pawls to rotate the same in such a direction as to engage the lock pawls with the toothed portions of the reels; a second spring for biasing the slider to slide the same in the frontward direction and drive the reels through the lock pawls in tape winding directions; and a pair of guides for rotating the lock pawls in such a direction as to disengage the lock pawls from the toothed portions against a biasing force of the first spring when the slider is slid in the rearward direction. Accordingly, when the reels are locked by the lock pawls, the reels are rotationally driven in the tape winding directions to thereby securely prevent slacking of the tape.

摘要翻译： 一种带盒，其具有卷轴锁定机构，该卷带锁定机构包括适于在盒壳体内沿前后方向滑动的滑块; 一对锁定爪，其适于与一对卷轴的外周齿部接合，以将卷轴的旋转锁定在卷带方向上，所述锁定爪可旋转地安装在滑块上; 第一弹簧，用于使所述锁定爪偏压以使所述锁定爪与所述卷轴的齿形部分接合; 第二弹簧，用于偏置滑块以使其向前方滑动，并以卷带方向驱动卷轴穿过锁定爪; 以及一对引导件，用于当滑动器沿向后的方向滑动时，克服第一弹簧的偏压力，使锁定爪沿着使锁定爪与齿部脱离的方向旋转。 因此，当所述卷轴被所述锁定爪锁定时，所述卷轴以带卷绕方向被旋转地驱动，从而可靠地防止所述带的松弛。

公开(公告)号：US5407145A

公开(公告)日：1995-04-18

申请号：US43930

申请日：1993-04-08

申请人： Yuji Iwahashi

发明人： Yuji Iwahashi

IPC分类号： G11B23/087 ,  G11B23/02

CPC分类号： G11B23/08735

摘要： A tape cassette includes a main lid which is pivotally mounted on an open end of a cassette shell. The main lid pivotally mounts a sub lid having a cam boss portion which is positioned in a lower end of a cam groove provided at each side of the open end of the cassette shell. A portion of the cassette shell supporting the cam groove also includes a tape guide surface backed by a concave portion. A rib is provided across the concave portion to prevent the cam boss from entering thereinto during closing operation of the cassette, thus preventing jamming and assuring reliable opening and closing operation of the tape cassette.

摘要翻译： 盒式磁带包括主盖，该主盖枢转地安装在盒壳的开口端。 主盖枢转地安装一个副盖，该副盖具有凸轮凸台部分，凸轮凸台部分位于设置在磁带盒外壳的开口端的每一侧的凸轮槽的下端。 支撑凸轮槽的盒壳的一部分还包括由凹部支撑的带引导表面。 横跨凹部设置肋以防止在关闭盒的操作期间凸轮凸台进入其中，从而防止卡住并确保带盒的可靠的打开和关闭操作。

公开(公告)号：US4773614A

公开(公告)日：1988-09-27

申请号：US2206

申请日：1987-01-12

申请人： Masahiro Makino ,  Yuji Iwahashi

发明人： Masahiro Makino ,  Yuji Iwahashi

IPC分类号： G11B23/087 ,  G03B1/04

CPC分类号： G11B23/0875 ,  G11B23/08785 ,  Y10S242/90

摘要： A tape cassette comprising upper and lower halves secured to each other to define a space containing a pair of tape reels. The upper half is formed in its upper surface with a depression. The upper half is provided with a window opening above one of the tape reels. A transparent window plate is provided on the upper half. The window plate is made through a molding process using a gate to spout a fused transparent synthetic resin into a molding cavity. The transparent window plate has a first portion covering the window opening and a second portion extending a substantial length from the first portion over the depression. The window plate second portion has a gate mark made thereon after the molding process. The gate mark is hidden under a label stuck on the depression.

摘要翻译： 一种盒式磁带，包括彼此固定的上半部和下半部，以限定包含一对磁带盘的空间。 上半部在其上表面形成有凹陷部。 上半部设置有在一个磁带盘上方的窗口。 上半部设有透明窗板。 窗板通过使用浇口将熔融的透明合成树脂喷射到模制腔中的成型工艺制成。 透明窗板具有覆盖窗口的第一部分和从凹部上方的第一部分延伸相当长度的第二部分。 窗板第二部分在模制过程之后具有在其上形成的门标记。 门标在隐藏在凹陷处的标签下方隐藏。

公开(公告)号：US5422773A

公开(公告)日：1995-06-06

申请号：US200736

申请日：1994-02-23

申请人： Hiroshi Ozaki ,  Yuji Iwahashi

发明人： Hiroshi Ozaki ,  Yuji Iwahashi

IPC分类号： G11B23/087 ,  G11B23/02

CPC分类号： G11B23/08735

摘要： In order to prevent drop-out in recording and reproducing, a cassette back lid is constituted by a first swing plate having a first engagement member engageable with a first cam surface, and a second swing plate having a second engagement member engageable with a second cam surface. The first swing plate is urged by torsion springs, in the lid opening direction. Therefore, a rotational operation of a cassette front lid in the lid opening direction causes the first swing plate to swing in the lid opening direction, and the second swing plate to swing in the lid opening direction, independently of the swing motion of the first swing plate, that is, the first and second swing plates swing relative to each other and also relative to the front lid in response to the swinging movements of the front lid between its opened and closed positions. This arrangement makes it possible to add the cassette back lid behind the front lid without changing the conventional open angle, and to improve the ability of protecting the tape.

摘要翻译： 为了防止记录和再现的脱落，盒后盖由具有与第一凸轮表面接合的第一接合构件的第一摆动板和具有与第二凸轮接合的第二接合构件的第二摆动板构成， 表面。 第一摇摆板由扭簧在盖打开方向推动。 因此，盒式前盖在盖打开方向上的旋转操作使得第一摇摆板在盖打开方向上摆动，并且第二摇摆板在盖打开方向上摆动，而与第一摆动的摆动不同 板，即第一和第二摇摆板响应于前盖在其打开和关闭位置的摆动运动而相对于彼此以及相对于前盖相对摆动。 这种布置使得可以在前盖的后面添加盒后盖，而不改变常规的开放角度，并且提高保护带的能力。