公开(公告)号：EP0395299A2

公开(公告)日：1990-10-31

申请号：EP90304193.7

申请日：1990-04-19

申请人： SONY CORPORATION

发明人： Kurokawa, Toshiya, c/o Patents Division ,  Yamazaki, Toshiyuki, c/o Patents Division

IPC分类号： G11B15/18 ,  G11B15/44

CPC分类号： G11B15/50 ,  G11B15/442 ,  G11B15/6653

摘要： Drive means for recording and/or reproducing apparatus includes a first gear train (26, 45, 46 or 47, 3 a or 4 a ) causes a supply or take-up reel table (3, 4) to rotate at a first speed, and a second gear train (26, 40, 46, 3 a ) which causes the supply or take-up reel table to rotate at a second speed higher than the first speed. By selecting one of these gear trains, the apparatus selectively operates in a FF/REW mode or a high-speed FF/REW mode. In the FF/REW mode, the tape forwarding or rewinding is performed in a tape loaded condition in which tape is arranged in the usual tape travelling path. In the high-speed FF/REW mode, it is performed in a tape unloaded condition in which the tape is arranged at a location other than in the tape travelling path, or is housed within a tape cassette. The system has a torque limiter (17, 27) between a driving source (5) and the first or second gear train. When the apparatus operates in a forward or reverse reproduction mode, the torque limiter acts on the first gear train so as to decrease the rotation speed of the supply or take-up reel table depending upon a load applied to the first gear train.

摘要翻译： 用于记录和/或再现设备的驱动装置包括第一齿轮系（26,45,46或47,3a或4a）使得供给或卷带盘（3,4）以第一速度旋转，并且 第二齿轮系（26,40,46,3a），其使得供给或卷带盘台以比第一速度高的第二速度旋转。 通过选择这些齿轮系中的一个，该装置选择性地以FF / REW模式或高速FF / REW模式操作。 在FF / REW模式中，磁带转发或倒带是在磁带装载状态下执行的，其中磁带布置在通常的磁带传送路径中。 在高速FF / REW模式中，它是在磁带无负载状态下执行的，其中磁带布置在除磁带行进路径之外的位置，或者被容纳在磁带盒内。 该系统在驱动源（5）和第一或第二齿轮系之间具有扭矩限制器（17,27）。 当设备以正向或反向再现模式操作时，扭矩限制器作用在第一齿轮系上，以便根据施加到第一齿轮系的负载来减小供给或卷带盘的转速。

公开(公告)号：EP0395034A2

公开(公告)日：1990-10-31

申请号：EP90107891.5

申请日：1990-04-25

申请人： SONY CORPORATION

发明人： Watanabe, Hisanori ,  Ito, Shinji

IPC分类号： G11B15/44 ,  G11B15/10 ,  G11B15/18 ,  G11B15/29

CPC分类号： G11B15/442 ,  G11B15/1883 ,  G11B15/29

摘要： The present invention is relative with a recording and/or reproducing apparatus employing a tape, such as a magnetic tape, as the recording medium, and provides a mode switching mechanism for such apparatus. The mechanism includes a swing arm (8) provided with a transmission gear selectively rotated in dependence upon the rotational drive direction of a sole reel motor (6), a cam gear (3) formed with interrupted portions and cam surfaces associated with these interrupted portions and adapted for selectively switching predetermined operational modes by the cam surfaces in dependence upon its rotational angular positions, a biasing member for rotationally biasing the cam gear, and a cam gear retention member for retaining the cam gear at a predetermined angular position. The reel shaft is rotationally driven by means of the transmission gear of the swing arm by driving the reel motor in the forward direction. The cam gear retention member (41) is moved to release the retention of the cam gear by means of the transmission gear of the swing arm by driving the reel motor in the reverse direction so as to rotate the cam gear by the biasing member and the motor for switching the operational modes.

摘要翻译： 本发明与使用诸如磁带的磁带作为记录介质的记录和/或再现装置相关，并且提供用于这种装置的模式切换机构。 该机构包括摆臂，该摆臂具有选择性地根据单个卷轴电动机的旋转驱动方向旋转的传动齿轮，形成有中断部分的凸轮齿轮和与这些中断部分相关联的凸轮表面，并且适于通过 凸轮表面依赖于其旋转角度位置，用于旋转地偏置凸轮齿轮的偏置构件和用于将凸轮齿轮保持在预定角度位置的凸轮齿轮保持构件。 通过驱动卷轴电机向前的方向，通过摆臂的传动齿轮旋转地驱动卷轴。 移动凸轮齿轮保持构件，通过驱动卷轴马达反方向，借助于摆臂的传动齿轮来释放凸轮齿轮的保持，以便通过偏置构件和用于切换的马达使凸轮齿轮旋转 操作模式。

公开(公告)号：EP0381058A2

公开(公告)日：1990-08-08

申请号：EP90101503.2

申请日：1990-01-25

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA AVE CO., LTD

发明人： Kato, Masao, c/o Intellectual Property Division

IPC分类号： G11B15/18 ,  G11B15/665 ,  G11B15/675

CPC分类号： G11B15/67547 ,  G11B15/1883 ,  G11B15/6656 ,  Y10T74/19358 ,  Y10T74/19633 ,  Y10T74/19898

摘要： A second clutch gear (21), which serves as a driv­ing gear, receives a driving force from a capstan motor (27). A first clutch gear (19), which serves as a driven gear, is arranged coaxial with the second clutch gear (21), with a friction mechanism (20) interposed therebetween. The first clutch gear (19) receives the driving force which the second clutch gear (21) trans­mits thereto through the friction mechanism (20). A directly-coupling gear (22) for directly transmitting the driving force from the second clutch gear (21) to the first clutch gear (19) is provided such that it can be brought into mesh with the first and second clutch gears (19, 21). The directly-coupling gear (22) includes first and second gears (22a, 22b) which are arranged coaxial with each other and are designed to provide gaps in the circumferential direction thereof, such the gaps can absorb torsion generated between the first and second clutch gears (19, 21). Engagement-­switching means moves the directly-coupling gear (22) between a first position at which the directly-coupling gear is engaged with the first and second clutch gears (19, 21) and a second position at which the directly-­coupling gear is disengaged from the first and second clutch gears.

摘要翻译： 用作驱动齿轮的第二离合器齿轮（21）从主导轴马达（27）接收驱动力。 用作从动齿轮的第一离合器齿轮（19）与第二离合器齿轮（21）同轴设置，其间插入摩擦机构（20）。 第一离合器齿轮（19）接收第二离合器齿轮（21）通过摩擦机构（20）向其传递的驱动力。 用于将来自第二离合器齿轮（21）的驱动力直接传递到第一离合器齿轮（19）的直接联接齿轮（22）设置成使其能够与第一和第二离合器齿轮（19， 21）。 直接耦合齿轮（22）包括彼此同轴布置的第一和第二齿轮（22a，22b），并被设计成在其圆周方向上提供间隙，这样的间隙可以吸收在第一和第二离合器 齿轮（19,21）。 接合切换装置使直接联接的齿轮（22）在第一位置和第二位置之间移动直接联接齿轮与第一和第二离合器齿轮（19,21）啮合的第一位置和直接联接齿轮 与第一和第二离合器齿轮脱离。

公开(公告)号：EP0346971A3

公开(公告)日：1990-03-07

申请号：EP89201463.0

申请日：1989-06-08

申请人： Philips Electronics N.V.

发明人： Bayer, Ernst ,  Fischer, Karl

IPC分类号： G11B15/18 ,  G11B15/32

CPC分类号： G11B15/1883 ,  G11B15/32

摘要： Ein Aufzeichungs- und/oder Wiedergabegerät (1) für einen in einer Kassette (5) untergebrachten, auf zwei Wickelkerne (20, 21) aufwickelbaren bandförmigen Aufzeichnungsträger (19) mit zwei Wickeldornen (6, 7) zum Antreiben der Wickelkerne (20, 21) und mit zwei zu den Wickeldornen (6, 7) koaxialen, mit diesen drehfest verbundenen Wickeldornrädern (36, 37) weist zum Antreiben der Wickeldornräder (36, 37) eine An­triebseinrichtung (39) mit einer auf einem quer zu den Ach­sen (34, 35) der Wickeldorne (6, 7) verstellbaren Lagerbock (40) drehbar gelagerten Antriebswelle (41) und einem auf der Antriebswelle (41) angebrachten, von einem Motor (43) her an­treibbaren Treibrad (44) auf. Die Antriebswelle (41) weist einen auf dem Niveau (38) der Wickeldornräder (36, 37) lie­genden ersten Wellenabschnitt (48) zum Antreiben eines der beiden Wickeldornräder und einen auf einem Niveau (51), das zwischen dem Niveau (38) der Wickeldornräder und dem Niveau (50) der von den Wickeldornrädern abgewandten Kassettenhaupt­seite (13) liegt, liegenden zweiten Wellenabschnitt (49) zum Antreiben des anderen der beiden Wickeldornräder auf. Dabei ist das Treibrad (44) ebenfalls auf einem zwischen dem Niveau (38) der Wickeldornräder (36, 37) und dem Niveau (50) der von den Wickeldornrädern (36, 37) abgewandten Kassettenhauptseite (13) liegenden Niveau (53) neben der Kassette (5) angeordnet.

公开(公告)号：EP0345739A2

公开(公告)日：1989-12-13

申请号：EP89110242.8

申请日：1989-06-06

申请人： SANYO ELECTRIC CO., LTD. ,  Tottori Sanyo Electric Co., Ltd.

发明人： Wada, Hajime

IPC分类号： G11B15/10 ,  G11B15/18

CPC分类号： G11B15/103 ,  G11B15/1883

摘要： A magnetic tape recording and playback apparatus comprises a tape driving system for driving a tape, a recording/playing system for recording/playing/erasing and linking means for mechanically linking the operations of the tape driving system with the recording/playing system. The tape driving system comprises a motor (130), a gear train coupled to the motor and a reel shaft (20, 30) for rotating reels of the cassette. The gear train comprises an planetary gear (180) which swings. The planetary gear selectively rotates the reel shaft in correspondence with respective operation modes of the magnetic recording and playback apparatus. The linking means comprises a cam (170) coupled to the planetary gear and a head base (60) mounting a recording/playing head (80). The cam transmits the driving power from the motor to the head base through the planetary gear. The head base moves corresponding to the shape of the cam and in association with the operation of the planetary gear. Operation such as recording and playing is carried out on the tape by the movement of the head base.

摘要翻译： 磁带记录和重放装置包括用于驱动磁带的磁带驱动系统，用于记录/播放/擦除的记录/播放系统和用于将磁带驱动系统的操作与记录/播放系统机械连接的链接装置。 磁带驱动系统包括电动机（130），耦合到电动机的齿轮系和用于旋转盒的卷轴的卷轴（20,30）。 齿轮系包括摆动的行星齿轮（180）。 行星齿轮根据磁记录和重放装置的相应操作模式选择性地旋转卷轴。 联接装置包括联接到行星齿轮的凸轮（170）和安装记录/播放头（80）的头座（60）。 凸轮通过行星齿轮将电机的驱动力传递到头座。 头座基于凸轮的形状并与行星齿轮的操作相关联地移动。 诸如记录和播放的操作通过磁头基座的移动在磁带上进行。

公开(公告)号：EP0267756A3

公开(公告)日：1989-10-18

申请号：EP87309859.4

申请日：1987-11-06

申请人： SONY CORPORATION

发明人： Koga, Noriyuki Sony Corporation ,  Hosoya, Masakatsu§Sony Corporation

IPC分类号： G11B15/18 ,  G11B15/00 ,  G11B15/10

CPC分类号： G11B15/29 ,  G11B15/442 ,  G11B25/063

摘要： A mode-change mechanism for a tape recorder has a driving bar (50) mounted for movement between a record/playback mode position and a stop mode position (S) and a partially toothless gear (38) has a cam (65) thereon engagable by a cam follower (54) on the driving bar (50) to move the driving bar (50) between its mode selecting positions in response to turning of the paritally toothless gear (38) between immobile positions thereof in which opposed first and second toothless portions (66, 67) on the outer periphery respectively face a driving gear (40) intermittently to rotate the partially toothless gear (38). A lock lever (71) is selectively engagable with one of a pair of stop elements (68, 69) on the partially toothless gear (38) to halt rotation thereof in a respective one of the immobile positions thereof, and a spring (53) urges the driving bar (50) toward one of its mode selecting positions (S), with the cam (65), the toothless portions (66, 67) and the stop elements (68, 69) on the partially toothless gear (38) being angularly positioned with respect to each other so that, when the lock lever (71) is disengaged from one of the stop elements (68, 69), the force of the spring (53) on the driving bar (50) is effective, through the action of the cam follower (54) on the cam (65), to initiate turning of the partially toothless gear (38) from its prior immobile position into meshing engagement with the driving gear (40). The toothless portion (66) which faces the driving gear in the record/playback mode is longer (ϑ₁) than the length (ϑ₂) of the toothless portion (67) which faces the driving gear (40) in the stop mode so that substantially instantaneous change from the record/playback mode to the stop mode can be achieved upon disengagement of the locking lever (71). Further, the partially toothless gear (38) for controlling the selection of the record/playback mode and the stop mode, a similar partially toothless gear (39) for controlling the selection of forward and reverse tape running modes, and a group of driving gears for selectively driving reel bases (7, 8) are arranged in surrounding relation to an intermediate driving gear (45) which intermittently rotates the partially toothless gears (38, 39) so that all of the gears may be accommodated in a substantially small space.

公开(公告)号：EP0257562A3

公开(公告)日：1989-08-23

申请号：EP87112076.2

申请日：1987-08-20

申请人： Deutsche Thomson-Brandt GmbH

发明人： Mahr, Peter

IPC分类号： G11B21/02 ,  G11B15/18 ,  G11B5/53

CPC分类号： G11B15/1833 ,  G11B5/53 ,  G11B21/02

摘要： Bei einer Hubeinrichtung für einen Rotor (8), der auf einer von einem Stellmotor (M2) angetriebenen, ein Gewinde (6) auf­weisenden Welle (4) drehbar und in Axialrichtung (A) der Wel­le (4) verschiebbar angeordnet ist, wobei die Differenz der Drehzahlen von Rotor (8) und Welle (4) ein Maß für die Hubge­schwindigkeit und Hubrichtung des Rotors (8) ist, insbesonde­re für die Kopfradanordnung eines Recorders mit einem um ei­ne Achse (A) rotierenden, von einem Magnetband umschlungenen Kopfrad (1), werden der Rotor (8) von einem Motor (M1) mit im wesentlichen konstanter Drehzahl angetrieben und der Stellmotor (M2) so gesteuert, daß die von ihm angetriebene Welle (4) in einer Hubrichtung eine gegenüber der Drehzahl des Rotors (8) größere und in der anderen Hubrichtung kleine­re Drehzahl hat, wobei der Bewegungsablauf der Hubeinrich­tung durch die Drehzahländerungen des Stellmotors (M2) be­stimmt wird.

公开(公告)号：EP0219041A3

公开(公告)日：1989-05-24

申请号：EP86113871.7

申请日：1986-10-07

申请人： HITACHI, LTD.

发明人： Hashiguchi, Yasuhiro ,  Katono, Noboru ,  Shibata, Yoshihiro

IPC分类号： G11B15/675 ,  G11B15/18

CPC分类号： G11B15/1883 ,  G11B15/67549

摘要： In a cassette loading apparatus for a video tape recorder equipped with a front loading mechanism, bearing portions (45, 46) of a worm (10) are disposed at predetermined positions of side brackets (2, 3) for supporting a cassette holder (12) which have L-shaped guide holes (2a, 2b) for guiding the support shaft (12a) of the cassette holder in both horizontal and vertical directions, a reference hole (57) is bored on the base (53) of the video tape recorder, the shaft (10a) of the worm (10) is inserted through the bearing portions (45, 46) and the reference hole (57), and the worm shaft (10a) keeps constant the axial distance be­tween gears (8, 9) for a cassette loading mechanism and a driving gear (35) for driving the video tape recorder.

公开(公告)号：EP0209796A3

公开(公告)日：1989-02-08

申请号：EP86109382.1

申请日：1986-07-09

申请人： HITACHI, LTD.

发明人： Azuma, Nobuo

IPC分类号： G11B15/18 ,  H04N5/783 ,  G11B15/467

CPC分类号： H04N5/937 ,  G11B15/1875 ,  G11B15/4673

摘要： uring still reproduction, slow-motion reproduction and the like reproduction mode in a magnetic reproducing apparatus. a magnetic tape (1) is travelled intermittently at a standard travel speed, i.e., at the same tape speed as that for recording, and a video signal (S) reproduced over a period (T3) during which the magnetic tape runs at the standard travel speed is written into an image memory (9). During the standard travel speed period of the magnetic tape, a magnetic head (3) correctly traces recording tracks (A1- A3; B1- B3) on the magnetic taple and so the video signal of less noise is stored In the image memory. The video signal stored in the image memory is read out to provide for reproduced still and slow-motion output signal (OUT).

公开(公告)号：EP0297805A2

公开(公告)日：1989-01-04

申请号：EP88305824.0

申请日：1988-06-27

申请人： SONY CORPORATION

发明人： Watanabe, Hisanori ,  Ohara, Kenji

IPC分类号： G11B15/44 ,  G11B15/18

CPC分类号： G11B15/093 ,  G11B15/1883 ,  G11B15/442

摘要： A mode-change mechanism for a tape recording and/or reproducing apparatus of the auto reverse type requires only one partially toothless gear with at least four, toothless peripheral portions in order to change modes of operation of the apparatus. The gear with the partially toothless peripheral portions is rotated only in one direction, and rotates in turn from each locked position to its next locked position in selecting the various modes of operation, so that a stop mode, a forward reproducing or recording mode, a reverse reproducing or recording mode, a fast forward mode, and a rewind mode are selectively obtained.

摘要翻译： 为了改变装置的操作模式，用于自动反转型的磁带记录和/或再现装置的模式改变机构仅需要一个具有至少四个无齿周边部分的部分无齿齿轮。 具有部分无牙周边部分的齿轮仅在一个方向上旋转，并且在选择各种操作模式时从每个锁定位置依次旋转到其下一个锁定位置，使得停止模式，向前再现或记录模式， 选择性地获得反向再现或记录模式，快进模式和快退模式。