公开(公告)号：US06819529B2

公开(公告)日：2004-11-16

申请号：US10181728

申请日：2002-07-22

申请人： Tadashi Ooami ,  Junya Endo ,  Masanori Maehara ,  Masahiro Kiko ,  Tamami Mishiro ,  Kentaro Shingai

发明人： Tadashi Ooami ,  Junya Endo ,  Masanori Maehara ,  Masahiro Kiko ,  Tamami Mishiro ,  Kentaro Shingai

IPC分类号： G11B1561

CPC分类号： G11B5/53 ,  G11B5/10 ,  G11B5/52 ,  G11B5/584

摘要： A head drum device of the present invention prevents a magnetic tape (2) from clinging to the head drum device (3) due to electrostatic charge by using a carbon-containing synthetic resin as the material of an upper drum (33) in order to reduce the manufacturing cost for the upper drum. Also, setting the outside diameter of the upper drum (33) smaller than that of an intermediate drum (32) eliminates the need for a high-level of manufacturing precision in the manufacture of the upper drum (33). Thus, it is possible to reduce the manufacturing cost for the upper drum (33).

摘要翻译： 本发明的磁头鼓装置通过使用含碳合成树脂作为上鼓（33）的材料，防止磁带（2）由于静电而粘附到磁头鼓装置（3），以便 降低上鼓的制造成本。 此外，将上滚筒（33）的外径设定为小于中间滚筒（32）的外径，不需要在制造上滚筒（33）时具有高水平的制造精度。 因此，可以降低上鼓（33）的制造成本。

公开(公告)号：US20060192837A1

公开(公告)日：2006-08-31

申请号：US10539523

申请日：2003-12-18

申请人： Takeharu Takasawa ,  Sunao Kushiro ,  Hiroshi Fujii ,  Kentaro Shingai ,  Takahiro Fukutani ,  Norio Ito

发明人： Takeharu Takasawa ,  Sunao Kushiro ,  Hiroshi Fujii ,  Kentaro Shingai ,  Takahiro Fukutani ,  Norio Ito

IPC分类号： G01D15/06

CPC分类号： G11B15/32 ,  G11B15/22

摘要： The dimension in the height direction of a reel braking mechanism to be disposed on the side of an S-side reel table in a video tape recorder is made small while making it difficult to disassemble an assembled state. The dimension in an axis line direction of a pin that engages a an elongated hole of a brake member of a brake arm is lengthened, thereby penetrating the brake member and extending downward. The extended portion of the pin is made to pass through a cut formed in an edge of a slide chassis.

摘要翻译： 在磁带录像机的S侧卷轴台侧设置的卷轴制动机构的高度方向的尺寸变小，难以拆卸组装状态。 与制动臂的制动构件的长孔接合的销的轴线方向的尺寸被延长，从而穿过制动构件并向下延伸。 使销的延伸部分穿过形成在滑动底盘的边缘中的切口。

公开(公告)号：US07375919B2

公开(公告)日：2008-05-20

申请号：US10539523

申请日：2003-12-18

申请人： Takeharu Takasawa ,  Sunao Kushiro ,  Hiroshi Fujii ,  Kentaro Shingai ,  Takahiro Fukutani ,  Norio Ito

发明人： Takeharu Takasawa ,  Sunao Kushiro ,  Hiroshi Fujii ,  Kentaro Shingai ,  Takahiro Fukutani ,  Norio Ito

IPC分类号： G11B15/28

CPC分类号： G11B15/32 ,  G11B15/22

摘要： The dimension in the height direction of a reel braking mechanism to be disposed on the side of an S-side reel table in a video tape recorder is made small while making it difficult to disassemble an assembled state. The dimension in an axis line direction of a pin that engages an elongated hole of a brake member of a brake arm is lengthened, thereby penetrating the brake member and extending downward. The extended portion of the pin is made to pass through a cut formed in an edge of a slide chassis.

摘要翻译： 在磁带录像机的S侧卷轴台侧设置的卷轴制动机构的高度方向的尺寸变小，难以拆卸组装状态。 与制动臂的制动构件的长孔接合的销的轴线方向的尺寸被延长，从而穿过制动构件并向下延伸。 使销的延伸部分穿过形成在滑动底盘的边缘中的切口。

公开(公告)号：US20060164750A1

公开(公告)日：2006-07-27

申请号：US11319469

申请日：2005-12-29

申请人： Masahiro Negita ,  Sunao Kushiro ,  Shunya Sawada ,  Kentaro Shingai ,  Satoshi Moriyama ,  Takanobu Sugiyama

发明人： Masahiro Negita ,  Sunao Kushiro ,  Shunya Sawada ,  Kentaro Shingai ,  Satoshi Moriyama ,  Takanobu Sugiyama

IPC分类号： G11B5/027

CPC分类号： G11B15/6656 ,  G11B15/67565

摘要： In a magnetic recording and reproducing apparatus according to the related art, since positions of central points of radiuses of curvature of opposing arc portions of a guide groove are coincident with each other in the direction in which a movable chassis is moved, it is difficult to make the whole of the magnetic recording and reproducing apparatus become light in weight and small in size. A magnetic recording and reproducing apparatus includes a fixed chassis (24) to which a rotary head drum (25) is attached, a movable chassis (23) slidably supported to the fixed chassis (24), a cam gear (51) rotatably supported to the fixed chassis (24) or the movable chassis (23) and which has a cam pin (51a) and a cam plate (59) attached to the movable chassis (23) or the fixed chassis (24) and which has a guide groove (65) with which the cam pin (51a) is slidably engaged, wherein the cam pin (51a) is moved along the guide groove (65) as the cam gear (51) is rotated, whereby rotation operation of the cam pin (51a) is transformed into slide operation of the movable chassis (23) to make the movable chassis (23) come close to or come away the rotary head drum (25). The guide groove (65) includes an arc-like eject side slide portion (66) which is dented in the opposite side of the rotary head drum (25), an arc-like play side slide portion (67) which is dented in the side of the rotary head drum (25) and a slide portion (68) continued to one side of the eject side slide portion (66) and the play side slide portion (67) and which is extended in the direction substantially perpendicular to the direction in which the movable chassis (23) is moved, positions of central points of radiuses of curvature of the eject side slide portion (66) and the play side slide portion (67) being displaced in the direction perpendicular to the direction in which the movable chassis (23) is moved.