公开(公告)号：US20070234776A1

公开(公告)日：2007-10-11

申请号：US11783504

申请日：2007-04-10

申请人： Hideaki Shiga ,  Masayoshi Moriwaki

发明人： Hideaki Shiga ,  Masayoshi Moriwaki

IPC分类号： B21D31/02

CPC分类号： B21D19/088

摘要： A burring method forms a boss on a metal sheet, using a press die including: a die with a burring hole formed therein; and a burring punch having a shape adapted to be inserted into the burring hole. In the burring method, a width of a clearance formed between the burring hole and the burring punch is in a range not less than 60% and not more than 115%, preferably not less than 65% and not more than 100%, and more preferably, not less than 75% and not more than 95%, of a thickness of the metal sheet, before the metal sheet goes through a burring process.

摘要翻译： 打褶方法在金属板上形成凸台，使用压模包括：在其中形成有毛刺孔的模具; 以及具有适于插入到所述毛刺孔中的形状的翻边冲头。 在这种翻边方法中，形成在上述翻边孔和上述打孔机之间的间隙的宽度在60％以上且115％以下，优选在65％以上100％以下的范围内。 优选不小于75％且不大于95％的金属片的厚度。

公开(公告)号：US06804084B2

公开(公告)日：2004-10-12

申请号：US10443851

申请日：2003-05-23

申请人： Teruo Ashikawa ,  Hiroyuki Naito ,  Kiyoo Morita ,  Shozo Onmori ,  Katsuki Asano ,  Masayoshi Moriwaki

发明人： Teruo Ashikawa ,  Hiroyuki Naito ,  Kiyoo Morita ,  Shozo Onmori ,  Katsuki Asano ,  Masayoshi Moriwaki

IPC分类号： G11B23087

CPC分类号： G11B23/08728 ,  G11B23/0875 ,  G11B23/08757 ,  G11B23/08785

摘要： In a magnetic tape cassette, a top end portion of a reel urging plate spring for urging a tape reel is subjected to a surface treatment to prevent from a friction. A distance between a couple of flanges of the tape reel is selected to keep a form of the wound magnetic tape, and to prevent the tape running from being disturbed by the increase of a contact resistance of the tape edges to the flanges. Additionally, positioning portions for positioning the magnetic tape cassette relative to a magnetic tape drive device are formed of a differential resin from the resin of the remaining part of the cassette case. Additionally, at least one of both end faces of each guide roller is surface treated so that the end face is not worn through its contact with the cassette half. Further, an information presenting section for displaying variable information is provided at a location other than label areas of the tape cassette.

摘要翻译： 在磁带盒中，对用于推动磁带卷轴的卷轴推动板簧的顶端部进行表面处理以防止摩擦。 选择磁带卷盘的几个凸缘之间的距离以保持卷绕的磁带的形式，并且为了防止由于带边缘到凸缘的接触电阻的增加而妨碍磁带的运行。 此外，用于将磁带盒相对于磁带驱动装置定位的定位部分由与盒壳体的其余部分的树脂不同的树脂形成。 此外，每个导辊的两个端面中的至少一个被表面处理，使得端面不会通过其与盒半部的接触而磨损。 此外，用于显示可变信息的信息呈现部分设置在除了带盒的标签区域之外的位置处。

公开(公告)号：US06742739B2

公开(公告)日：2004-06-01

申请号：US10246393

申请日：2002-09-19

申请人： Katsuki Asano ,  Masayoshi Moriwaki ,  Shigeru Nishiyama

发明人： Katsuki Asano ,  Masayoshi Moriwaki ,  Shigeru Nishiyama

IPC分类号： G11B2304

CPC分类号： B29C45/1639 ,  B29C45/0025 ,  B29C45/1418 ,  B29C2045/0034 ,  B29L2031/32 ,  G11B15/605 ,  G11B23/08757

摘要： A magnetic tape cassette and a guide roller in which the magnetic tape can stably travel and the magnetic head can read/write the record correctly, and a method of manufacturing the guide roller are provided. The magnetic tape cassette of the present invention comprises a guide roller (106) rotatably supported by the lower cassette half. The guide roller is almost in the shape of a barrel of which a coefficient of curvature T expressed by the expression [1] representing the extent of curvature of the circumferential surface is in the range between 0.001 and 0.01, and comprises a primary molding and injected resin injected within the primary molding for bulging said primary molding into the shape of said barrel shaped cavity that has a largest diameter at the parting line by the injection pressure.

摘要翻译： 一种磁带盒和导辊，其中磁带可以稳定地行进并且磁头可以正确地读/写记录，以及制造导辊的方法。 本发明的磁带盒包括由下半盒体可旋转地支撑的导辊（106）。 引导辊几乎为圆筒形，其中表示圆周表面的曲率程度的表达式[1]表示的曲率系数T在0.001至0.01之间的范围内，并且包括一次成型并注入 注射在初级模制件内的树脂，用于将所述初级模制件膨胀成所述桶状空腔的形状，其在分型线处具有通过注射压力具有最大直径的形状。

公开(公告)号：US20070245796A1

公开(公告)日：2007-10-25

申请号：US11785344

申请日：2007-04-17

申请人： Hideaki Shiga ,  Masayoshi Moriwaki

发明人： Hideaki Shiga ,  Masayoshi Moriwaki

IPC分类号： B21D11/00

CPC分类号： B21D22/02

摘要： A press die for molding an edge wall at a peripheral edge of a workpiece includes a die convexly formed along a shape of one surface of the edge wall, a punch formed with a concave portion along the other surface of the edge wall, and a stripper for holding the workpiece with the die therebetween, wherein a clearance between the die and the punch is in a range of not less than 70% and not more than 95% of a thickness of the workpiece before forming.

摘要翻译： 用于在工件的周缘成型边缘壁的压模包括沿着边缘壁的一个表面的形状凸起地形成的模具，沿着边缘壁的另一个表面形成有凹部的冲头和剥离器 用于将工件保持在其间的模具，其中模具和冲头之间的间隙在成形之前不小于工件的厚度的70％且不大于95％的范围内。

公开(公告)号：US07014136B1

公开(公告)日：2006-03-21

申请号：US10088230

申请日：2000-09-06

申请人： Kazuo Hiraguchi ,  Katsuki Asano ,  Masayoshi Moriwaki

发明人： Kazuo Hiraguchi ,  Katsuki Asano ,  Masayoshi Moriwaki

IPC分类号： G11B23/087

CPC分类号： G11B23/08728 ,  G11B23/08757 ,  G11B25/066

摘要： The present invention aims to prevent damages of a magnetic tape in a magnetic tape cassette adapted to be operated in a recording and reproducing apparatus which can similarly operate a plurality of magnetic tape cassettes.More specifically, in the invention, differences (A1−B1, A2−B2) between heights A1, A2 of radially inner portions (32a), (42a) of lower flanges (32), (42) and heights B1, B2 of ribs (35a), (45a) of lower halves (35), (45) for restricting a height of the magnetic tape are equal (A1−B1=A2−B2) in a plurality of the magnetic tape cassettes which have the same vertical sizes and different sizes in a horizontal direction.

摘要翻译： 本发明的目的在于防止适用于可以类似地操作多个磁带盒的记录和再现装置中操作的磁带盒中的磁带的损坏。 更具体地，在本发明中，下凸缘（32），（42）的径向内部部分（32a），（42a），（42a）的高度A1，A2之间的差异（A 1 -B 1，A 2 -B 2） ）和用于限制磁带高度的下半部（35），（45）的肋（35a），（45a）的高度B 1，B 2相等（A 1 -B 1 = A 2 -B 2）在水平方向上具有相同垂直尺寸和不同尺寸的多个磁带盒中。

公开(公告)号：US06643096B2

公开(公告)日：2003-11-04

申请号：US09833671

申请日：2001-04-13

申请人： Teruo Ashikawa ,  Hiroyuki Naito ,  Kiyoo Morita ,  Shozo Onmori ,  Katsuki Asano ,  Masayoshi Moriwaki

发明人： Teruo Ashikawa ,  Hiroyuki Naito ,  Kiyoo Morita ,  Shozo Onmori ,  Katsuki Asano ,  Masayoshi Moriwaki

IPC分类号： G11B23087

CPC分类号： G11B23/08728 ,  G11B23/0875 ,  G11B23/08757 ,  G11B23/08785

摘要： In a magnetic tape cassette, a top end portion of a reel urging plate spring for urging a tape reel is subjected to a surface treatment to prevent from a friction. A distance between a couple of flanges of the tape reel is selected to keep a form of the wound magnetic tape, and to prevent the tape running from being disturbed by the increase of a contact resistance of the tape edges to the flanges. Additionally, positioning portions for positioning the magnetic tape cassette relative to a magnetic tape drive device are formed of a differential resin from the resin of the remaining part of the cassette case. Additionally, at least one of both end faces of each guide roller is surface treated so that the end face is not worn through its contact with the cassette half. Further, an information presenting section for displaying variable information is provided at a location other than label areas of the tape cassette.

摘要翻译： 在磁带盒中，对用于推动磁带卷轴的卷轴推动板簧的顶端部进行表面处理以防止摩擦。 选择磁带卷盘的几个凸缘之间的距离以保持卷绕的磁带的形式，并且为了防止由于带边缘到凸缘的接触电阻的增加而妨碍磁带的运行。 此外，用于将磁带盒相对于磁带驱动装置定位的定位部分由与盒壳体的其余部分的树脂不同的树脂形成。 此外，每个导辊的两个端面中的至少一个被表面处理，使得端面不会通过其与盒半部的接触而磨损。 此外，用于显示可变信息的信息呈现部分设置在除了带盒的标签区域之外的位置处。

公开(公告)号：US06595450B2

公开(公告)日：2003-07-22

申请号：US09729857

申请日：2000-12-06

申请人： Katsuki Asano ,  Masayoshi Moriwaki ,  Shigeru Nishiyama

发明人： Katsuki Asano ,  Masayoshi Moriwaki ,  Shigeru Nishiyama

IPC分类号： G11B2304

CPC分类号： B29C45/1639 ,  B29C45/0025 ,  B29C45/1418 ,  B29C2045/0034 ,  B29L2031/32 ,  G11B15/605 ,  G11B23/08757

摘要： A magnetic tape cassette and a guide roller in which the magnetic tape can stably travel and the magnetic head can read/write the record correctly, and a method of manufacturing the guide roller are provided. The magnetic tape cassette comprises a guide roller (106) rotatably supported by the lower cassette half. The guide roller is almost in the shape of a barrel of which a coefficient of curvature T expressed by the expression [1] representing the extent of curvature of the circumferential surface is in the range between 0.001 and 0.01, and comprises a primary molding and injected resin injected within the primary molding for bulging said primary molding into the shape of said barrel shaped cavity that has a largest diameter at the parting line by the injection pressure.

摘要翻译： 一种磁带盒和导辊，其中磁带可以稳定地行进并且磁头可以正确地读/写记录，以及制造导辊的方法。 磁带盒包括由下半盒体可旋转地支撑的导辊（106）。 引导辊几乎为圆筒形，其中表示圆周表面的曲率程度的表达式[1]表示的曲率系数T在0.001至0.01之间的范围内，并且包括一次成型并注入 注射在初级模制件内的树脂，用于将所述初级模制件膨胀成所述桶状空腔的形状，其在分型线处具有通过注射压力具有最大直径的形状。

公开(公告)号：US4570877A

公开(公告)日：1986-02-18

申请号：US645960

申请日：1984-08-31

申请人： Kengo Oishi ,  Masayoshi Moriwaki

发明人： Kengo Oishi ,  Masayoshi Moriwaki

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

CPC分类号： G11B23/08764

摘要： A pair of friction sheets loosely disposed between the opposite end faces of wind-up cores and the inner surfaces of a cassette casing in a magnetic tape cassette are loosely engaged with posts of rotatable guide rollers and guide pins in the cassette so that the opposite side edges of the magnetic tape may be guided by the friction sheets substantially throughout its path and the tape may be fed in a stable manner. Engaging portions of the friction sheets may have protruded portions protruded toward the inner surfaces of the casing to guide the tape with sufficient friction. When the magnetic tape cassette is put into a cassette tape recorder, the tape travels stably with respect to the magnetic head of the recorder.

摘要翻译： 松散地布置在卷绕芯的相对端面和磁带盒的盒壳体的内表面之间的一对摩擦片与盒中的可旋转导向辊和导向销的柱松动地接合，使得相对侧 磁带的边缘可以由摩擦片基本上贯穿其路径引导，并且可以以稳定的方式进给带。 摩擦片的接合部分可以具有朝向壳体的内表面突出的突出部分，以以足够的摩擦引导带。 当磁带盒放入盒式磁带录音机时，磁带相对于记录器的磁头稳定地行进。

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：US4544975A

公开(公告)日：1985-10-01

申请号：US472129

申请日：1983-03-04

申请人： Kengo Oishi ,  Masayoshi Moriwaki

发明人： Kengo Oishi ,  Masayoshi Moriwaki

IPC分类号： G11B23/087 ,  G11B15/60

CPC分类号： G11B23/08771

摘要： In a magnetic recording tape cassette, a pad supporting member which supports a tape pad for backing the recording tape against the magnetic head of a recording/reproducing system comprises upper and lower halves. Each half includes a pad supporting portion and a pair of arm portions extending from either side of the pad supporting portion and the halves are connected with each other at the respective free ends of the arm portions with the pad supporting portions being separated from each other by a slit. The upper portion of the pad is bonded to the pad supporting portion of the upper half of the supporting member and the lower portion of the pad is bonded to the lower half, whereby the upper and lower portions can be flexed independently from each other.

摘要翻译： 在磁记录带盒中，支撑用于将记录带背衬在记录/再现系统的磁头上的带垫的衬垫支撑构件包括上半部和下半部。 每一半包括垫支撑部分和一对臂部分，其从衬垫支撑部分的任一侧延伸，并且半部在臂部分的相应自由端处彼此连接，衬垫支撑部分彼此分离， 一个狭缝 垫的上部结合到支撑构件的上半部的衬垫支撑部分，并且衬垫的下部接合到下半部，由此上部和下部可以彼此独立地弯曲。