Rotary head disc for a magnetic-tape apparatus having reproducing heads
shielded from recording heads
    1.
    发明授权
    Rotary head disc for a magnetic-tape apparatus having reproducing heads shielded from recording heads 失效
    用于具有从记录头屏蔽的再现头的磁带装置的旋转头盘

    公开(公告)号:US5299084A

    公开(公告)日:1994-03-29

    申请号:US861682

    申请日:1992-04-01

    IPC分类号: G11B5/53 G11B5/52

    CPC分类号: G11B5/531 G11B5/53

    摘要: A scanning device for a magnetic-tape apparatus is proposed, which device comprises a stationary upper drum section (1) and lower drum section (2) and a head disc (10) which rotates in a gap (5) between the drum sections. In its upper radial surface and its lower radial surface the head disc (10) has segmental recesses (26, 27) for accommodating magnetic heads (11) secured to head mounts (12). At one side of the head disc (10) the recesses (26, 27) accommodate magnetic recording heads and at the other side said recesses accommodate the magnetic reproducing heads.

    摘要翻译: 提出了一种用于磁带装置的扫描装置,该装置包括固定的上鼓部分(1)和下鼓部分(2)以及在鼓部分之间的间隙(5)中旋转的头盘(10)。 在其上径向表面和其下径向表面中,头盘(10)具有用于容纳固定到头部安装件(12)的磁头(11)的节段凹槽(26,27)。 在头盘(10)的一侧,凹槽(26,27)容纳磁记录头,另一侧所述凹槽容纳磁性再现头。

    Scanning device for magnetic tape with special bearing arrangement for
scanner shaft
    2.
    发明授权
    Scanning device for magnetic tape with special bearing arrangement for scanner shaft 失效
    用于扫描仪轴的特殊轴承安装磁带的扫描装置

    公开(公告)号:US5212610A

    公开(公告)日:1993-05-18

    申请号:US835211

    申请日:1992-02-13

    IPC分类号: G11B5/02 G11B5/52 G11B5/53

    CPC分类号: G11B5/53

    摘要: A scanning device for a magnetic tape recording and playback equipment of the oblique track type has a drive shaft (9) for a rotary head wheel (4) mounted in a duplex ball bearing (10) centered on the orbit plane of the magnetic heads which revolve on the circumference of the head wheel between the two halves of a tape-guiding drum. A support bearing (19) is affixed in the bottom of a housing (17) which houses the drive motor and is held in a downward extending socket at the bottom of the lower half of the drum. The housing can be tilt-shifted slightly for shifting the support bearing and then held, by three screws accessible from below, in the correct position for aligning the orbit of the magnetic heads in the gap between the two halves of the drum.

    摘要翻译: 用于倾斜轨道型磁带记录和重放设备的扫描装置具有安装在以磁头的轨道平面为中心的双重滚珠轴承(10)中的旋转磁头轮(4)的驱动轴(9) 在磁带引导鼓的两个半部之间的头轮的圆周上旋转。 支撑轴承(19)固定在壳体(17)的底部,壳体(17)容纳驱动马达并且保持在滚筒下半部底部的向下延伸的插座中。 壳体可以稍微倾斜移动以移动支撑轴承,然后通过三个可从下方进入的螺钉保持在正确的位置,以使磁头的轨道在滚筒的两半之间的间隙中对准。

    Scanning device for magnetic tape with special disposition of rotary
transformers for recording and playback magnetic heads
    3.
    发明授权
    Scanning device for magnetic tape with special disposition of rotary transformers for recording and playback magnetic heads 失效
    具有用于记录和重放磁头的旋转变压器的特殊配置的磁带扫描装置

    公开(公告)号:US5278715A

    公开(公告)日:1994-01-11

    申请号:US832935

    申请日:1992-02-10

    CPC分类号: G11B15/14 G11B5/53

    摘要: For oblique track scanning of magnetic tape which is looped around a two-part drum (1, 2) separated by a gap (5) in which magnetic heads (11) affixed to a headwheel revolve, the rotary transformers connecting the magnetic heads on the headwheel to fixed parts of the scanning device are provided by inner and outer magnetic core rings in which windings are embedded for a number of transformers. One group of these rotary transformers (18, 19) is located above the headwheel disk structure (10, 25) in such a way that outer magnetic core rings are fixed in a bore of the fixed upper drum (1) and inner magnetic core rings (19) are affixed to a seating shell (25) that connects the headwheel disk (10) to its driving shaft. Another group of rotary transformers (10, 21) is located beneath the rotary headwheel disk structure (10, 25) and in this case the outer magnetic core rings (20) are affixed to the inner wall of the rotary headwheel disk structure (10, 25) and the inner magnetic core rings are affixed to the outer wall of the bearing (15) of the shaft (14) that drives the rotary headwheel disk.

    摘要翻译: 对于围绕由附接到头轮的磁头(11)旋转的间隙(5)分开的两部分磁鼓(1,2)环绕的磁带的斜轨扫描,旋转变压器将磁头连接到 头轮到扫描装置的固定部分由内部和外部磁芯环提供,其中绕组被嵌入用于多个变压器。 这些旋转变压器(18,19)中的一组位于头轮盘结构(10,25)的上方,使得外磁心环固定在固定的上鼓(1)的孔中,并且内磁心环 (19)固定到将前轮盘(10)连接到其驱动轴的座壳(25)上。 另一组旋转变压器(10,21)位于旋转轮毂盘结构(10,25)的下方,并且在这种情况下,外部磁芯环(20)固定在旋转头轮盘结构(10,21)的内壁上, 25),并且内部磁芯环固定到驱动旋转轮毂盘的轴(14)的轴承(15)的外壁上。

    Tape drive mechanism
    4.
    发明授权
    Tape drive mechanism 失效
    磁带机构

    公开(公告)号:US4130257A

    公开(公告)日:1978-12-19

    申请号:US778924

    申请日:1977-03-18

    申请人: Gerhard Falk

    发明人: Gerhard Falk

    IPC分类号: G11B15/22 G11B15/43

    CPC分类号: G11B15/22 G11B15/43

    摘要: A tape drive has two hubs which can each be rotated in forward and reverse direction. An arrangement is provided which permits each hub to be freely rotated in one direction while braking the other against rotation in the same direction, and vice versa.

    摘要翻译: 磁带机具有两个可以向前和向后旋转的轮毂。 提供了一种布置,其允许每个轮毂在一个方向上自由地旋转,同时制动另一个避免沿相同方向的旋转,反之亦然。

    Control and energization circuit for a brushless d-c motor
    5.
    发明授权
    Control and energization circuit for a brushless d-c motor 失效
    无刷d-c电机的控制和通电电路

    公开(公告)号:US4692675A

    公开(公告)日:1987-09-08

    申请号:US893333

    申请日:1986-08-05

    申请人: Gerhard Falk

    发明人: Gerhard Falk

    IPC分类号: H02P6/14 H02K29/10

    CPC分类号: H02P6/14

    摘要: A ring-connected d-c brushless stator winding has winding sections (I, II . . . XI), serially connected by junctions (1, 2 . . . 11) and selectively and sequentially connected to a source of d-c power (15, 16) by controlled switches (20, 21), the connection of the switches being selectively controlled by a logic network responsive to a rotor position sensor (26). In accordance with the logic, when the rotor position sensor senses that the rotor is in alignment with a junction, the respective junction is connected to one terminal and, through the logic, which includes an OR-gate (28), a NOR-gate (29) and an AND-gate (30) which receive input signals from sensors associated with other junctions, the junction beneath the sensor sensing the rotor at the position is connected to one terminal of the source, whereas junctions effectively 180.degree.-electrical displaced are connected by the switches controlled by the logic, to the other d-c terminal; as the rotor moves, the field travels around the ring stator.

    摘要翻译: 环形直流无刷定子绕组具有通过接点(1,2 ... 11)串联连接的绕组部分(I,II。...),并且选择性地并且顺序地连接到直流电源(15,16) 通过受控开关(20,21),响应于转子位置传感器(26),开关的连接被逻辑网络选择性地控制。 根据逻辑,当转子位置传感器感测到转子与结点对准时,相应的连接点连接到一个端子,并且通过包括或门(28)的逻辑,或非门 (29)和与门(30)接收来自与其它连接点相关联的传感器的输入信号,传感器下方的连接处感测位于该位置处的转子,而连接有效地180°电位置 由逻辑控制的开关连接到另一个直流端子; 当转子移动时,场围绕环定子行进。

    Flutter compensated magnetic tape transducing drive apparatus
    6.
    发明授权
    Flutter compensated magnetic tape transducing drive apparatus 失效
    颤振补偿磁带传感驱动装置

    公开(公告)号:US4420109A

    公开(公告)日:1983-12-13

    申请号:US274718

    申请日:1981-06-18

    IPC分类号: G11B15/29 B65H17/20

    CPC分类号: G11B15/29

    摘要: To prevent external acceleration or deceleration forces from affecting the linear speed of a tape of a tape transport mechanism, counter-rotating masses are formed by the counter or pressure roller (13) engaging the tape and pressing the tape against the capstan (4'), the respective moments of inertia about the respective axes of rotation, and the respective radii being selected in accordance with the relationship ##EQU1## wherein j.sub.1 is the moment of inertia of the drive system about the axis of rotation of the drive capstan (4');r.sub.1 is the radius of the drive capstan (4');j.sub.2 is the moment of inertia of the counter or pressure roller (13) about its axis of rotation (14); andr.sub.2 is the radius of the counter or pressure roller (13).

    摘要翻译: 为了防止外部加速或减速力影响带传送机构的带的线速度,反转质量由与台带或加压辊(13)接合并且将带压靠在绞盘(4')上而形成, ,相应的旋转轴线的惯性力矩,以及根据关系式(IMAGE)选择的相应半径,其中j1是驱动系统围绕驱动绞盘(4')的旋转轴的惯性矩, ); r1是驱动绞盘(4')的半径; j2是计数器或加压辊(13)围绕其旋转轴线(14)的惯性矩; 并且r2是计数器或加压辊(13)的半径。

    Apparatus for winding a tape-like material
    7.
    发明授权
    Apparatus for winding a tape-like material 失效
    用于缠绕带状材料的装置

    公开(公告)号:US5553800A

    公开(公告)日:1996-09-10

    申请号:US293983

    申请日:1994-08-22

    申请人: Gerhard Falk

    发明人: Gerhard Falk

    摘要: The density of winding of tape onto a reel at high winding speeds is improved by oscillatory longitudinal translation of a portion of the tape, to induce tape tension oscillations. This substantially precludes slipping of the layers on the reel. To initiate the tension oscillations, a tape tension controller in a video tape recorder is vibrated by a motor whose torque is varied periodically. In another embodiment, the spindle of a guide roller is mounted for eccentric rotation by a drive motor.

    摘要翻译: 通过磁带的一部分的振荡纵向平移来提高磁带以高卷绕速度卷绕在卷轴上的密度,以引起磁带张力振荡。 这基本上排除了卷筒上的各层的滑动。 为了启动张力振荡,磁带录像机中的磁带张力控制器由其扭矩周期性变化的电动机振动。 在另一个实施例中,引导辊的主轴被安装成用于由驱动马达偏心旋转。

    Scanning device for a magnetic-tape apparatus having a radially
expandable clamping hub
    8.
    发明授权
    Scanning device for a magnetic-tape apparatus having a radially expandable clamping hub 失效
    具有可径向扩张的夹紧毂的磁带装置的扫描装置

    公开(公告)号:US5388018A

    公开(公告)日:1995-02-07

    申请号:US861753

    申请日:1992-04-01

    申请人: Gerhard Falk

    发明人: Gerhard Falk

    CPC分类号: G11B5/53 G11B15/61

    摘要: For rotationally locking a motor shaft (16) to a head disc (10) one end of the motor shaft (16) is provided with a clamping hub (15). The clamping hub (15) comprises a clamping sleeve (27) in which two clamping elements (28, 29), spaced apart by a spacer tube (30) and extending in the direction of the axis of rotation, are axially movable. Two conical star washers (32, 33) are mounted between the individual clamping bolts (28, 29) and the ends of the spacer tube (30) and provide a centric expansion of the clamping tube (27) at two locations (38, 39).

    摘要翻译: 为了将电动机轴(16)旋转地锁定到头盘(10),电动机轴(16)的一端设置有夹紧毂(15)。 夹紧轮毂(15)包括夹紧套筒(27),两个由间隔管(30)间隔开并沿旋转轴线方向延伸的夹紧元件(28,29)可轴向移动。 两个锥形星形垫圈(32,33)安装在单独的夹紧螺栓(28,29)和间隔管(30)的端部之间,并且在两个位置(38,39)处提供夹紧管(27)的中心膨胀 )。

    Tension control mechanism for a recording/reproducing device
    9.
    发明授权
    Tension control mechanism for a recording/reproducing device 失效
    用于记录/再现装置的张力控制机构

    公开(公告)号:US4080635A

    公开(公告)日:1978-03-21

    申请号:US688625

    申请日:1976-05-21

    IPC分类号: B65H23/16 G11B15/43 G11B15/18

    CPC分类号: G11B15/43

    摘要: In a recording and reproduction device for a tape-like carrier having at least one scanning device and two spools for the carrier, first and second tape-tension adjusting levers, and first and second guidance devices disposed on the levers, respectively, for guiding and maintaining the carrier thereon, spring devices exerting a force against the levers, and where the levers may be displaced from a rest position to one of a plurality of operating positions against the force of the spring devices, the improvement includes a regulating mechanism for the spring device where the force of the latter has first, second and third regions, which may be controlled by the regulating mechanism. The force for the spring device may be adjusted by the regulating mechanism in the first region to a value sufficient to maintain the carrier on the guidance devices, is adjustable in the second region to a second value required for selective recording and reproduction of the carrier, and may be adjusted in the third region to a value at least equal to a value required for fast rewinding of the carrier, but below a predetermined maximum allowable value that if obtained, would result in a permanent deformation of the tape-like carrier.

    摘要翻译: 在具有至少一个扫描装置和用于载体的两个卷轴的带状载体的记录和再现装置中,第一和第二带张力调节杆以及分别设置在杆上的第一和第二引导装置用于引导和 在其上保持载体,弹簧装置施加力抵靠杠杆,并且其中杆可以抵抗弹簧装置的力而从静止位置移动到多个操作位置中的一个,改进包括用于弹簧的调节机构 装置,其中后者的力具有可由调节机构控制的第一,第二和第三区域。 弹簧装置的力可以通过第一区域中的调节机构调节到足以将载体保持在引导装置上的值,在第二区域中可调节到载体的选择性记录和再现所需的第二值, 并且可以在第三区域中调节至少等于载体快速重绕所需的值,但是低于预定的最大允许值,如果获得的话,将导致带状载体的永久变形。

    Magnetic tape transport device with tape tension roller on a lever
subjected to motor torque
    10.
    发明授权
    Magnetic tape transport device with tape tension roller on a lever subjected to motor torque 失效
    磁带传送装置带有带张力辊的杠杆受到电机扭矩的影响

    公开(公告)号:US5310133A

    公开(公告)日:1994-05-10

    申请号:US123707

    申请日:1993-09-17

    IPC分类号: G11B15/43 G11B15/46

    CPC分类号: G11B15/43 G11B15/46

    摘要: In a magnetic tape transport device having supply and take-up reels and tape guide elements, as well as a scanner, there is engaged with the tape on each side of the scanner a tape tension roller on the free extremity of a tape tension lever which is subjected to torque at its pivot by a d.c. motor for maintaining the desired tension of the tape. An angular position indicator is connected to the pivot of the lever and a regulation loop is provided for controlling the tape tension in a manner consistent with the tape speed. A capstan drive of the tape is not necessary.

    摘要翻译: 在具有供应和卷取卷轴和带引导元件以及扫描器的磁带传送装置中,在扫描器的每一侧上与带张紧辊接合在带张力杆的自由端上, 在其枢轴处受到直流的扭矩 电机用于保持磁带所需的张力。 角位置指示器连接到杠杆的枢轴,并且提供调节回路以以与带速度一致的方式控制带张力。 磁带的主导驱动器不是必需的。