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    • 2. 发明申请
    • ROTARY HEAD ASSEMBLY
    • 旋转头组件
    • WO1984000438A1
    • 1984-02-02
    • PCT/JP1983000214
    • 1983-07-05
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.IMANISHI, KiyokazuICHIYANAGI, TakashiSAKURAI, YasuoNAKA, HiroyukiNAKAGAWA, Koji
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • G11B15/60
    • G11B15/61
    • In a rotary head assembly which has a stationary cylinder (21) with a fixed cylindrical part, and a rotatable rotary member (19) of a diameter substantially equal to that of the cylinder (21) which is arranged with a very small gap on the same shaft as the cylinder (21) and holds a magnetic head (29) so that a magnetic tape is helically wound and fed thereon, a pump-out type of spiral group (20) is formed on part or all of the periphery of either of the surfaces of the opposed rotary unit formed between the cylinder (21) and the rotary member (19), a floating force due to pneumatic pressure is generated, not only on the rotary cylinder, but also on the stationary cylinder so that the feeding of the magnetic tape is stable and smooth, thereby basically eliminating the phenomena of tape flutter and adhesion, and also tape damage or cylinder wear due to friction.
    • 具有直径为设有固定圆筒部固定缸(21),和一个可转动件(19)基本上等于气缸的旋转磁头组件,其被布置成与一个非常小的间隙在相同的(21) (21)并且保持磁头(29),以便允许磁带螺旋卷绕并在头上滚动。 形成在部分或在每个液压缸(21)和所述旋转构件(19)之间形成的旋转单元的相对表面的整个周边,力A组螺旋泵送类型的(20) 浮动由于空气压力产生不仅对旋转滚筒,而且在固定汽缸这样的磁带的,滑动是稳定的和稳定的,基本上消除了哇条带的现象和粘附性, 以及由摩擦造成的带的损坏或气缸的磨损。
    • 8. 发明申请
    • PULSE WIDTH MODULATION CONVERTER
    • 脉冲宽度调制转换器
    • WO1998029937A1
    • 1998-07-09
    • PCT/JP1997004767
    • 1997-12-24
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.TAKADA, KazuyukiISOMURA, Yoshinori
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • H02M01/12
    • H02M1/4233H02M1/4216H02M7/219H02M7/53873H02M2007/53876Y02B70/126Y02E10/56
    • A PWM converter includes a power source current detector (9), current instruction generator (7), current controller (6) and a main circuit power control section (8), and the current controller is constituted of comparators (17, 18, 19) which compare the line current measurement results with the line current instruction values, and a logic circuit (10) which generates switching instruction signals (PU, PV, PW) based on the comparison results with use of timing signals so that the switching power devices (Q1-Q6) are selectively turned ON and OFF in the direction of reducing the difference between the line current measurement results and the line current instruction values, and thus essentially solves the prior art problems associated with gain adjustment of current error amplifiers, which is completely adjustment-free and yet inexpensive.
    • PWM转换器包括电源电流检测器(9),电流指令发生器(7),电流控制器(6)和主电路功率控制部分(8),电流控制器由比较器(17,18,19) ),其将线电流测量结果与线电流指令值进行比较;以及逻辑电路(10),其基于使用定时信号的比较结果生成切换指令信号(PU,PV,PW),使得开关功率器件 (Q1-Q6)在减小线路电流测量结果和线电流指令值之间的差异的方向上选择性地导通和截止,从而基本上解决了与电流误差放大器的增益调整相关的现有技术问题, 完全免调节而且价格便宜。
    • 10. 发明申请
    • ELECTRONIC COMPONENT AND MOUNTING METHOD AND DEVICE THEREFOR
    • 电子元件及其安装方法及其设备
    • WO1998026641A1
    • 1998-06-18
    • PCT/JP1997004578
    • 1997-12-12
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.KURIBAYASHI, TakeshiNAKANO, Kazuyuki
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • H05K13/04
    • H05K13/0465H01L2224/16225H01L2224/81193H01L2924/181H05K1/0266H05K3/303H05K13/08Y10T29/49131Y10T29/49133Y10T29/49144Y10T29/53178H01L2924/00012
    • Processing is started (S1), and control of each mounting processing is sequentially executed under a mounting program command in a storage section (S2). An electronic component is positioned on a mounting head, then taken out and held (S3). A BGA component is positioned by position detection of a reference mark and inspection, and correction is carried out in response to discrimination of holding attitude. In inspection using the reference mark as a reference position, the quality of the component is discriminated, for example, loss and shift of a solder bump and insufficiency of the quantity of the solder (S4). A normal component is moved to the vicinity of a mounting position on a printed board on a mounting table by the mounting head (S5). A recognition mark at the target mounting position on the printed board is confirmed and recognized (S6). The mounting position is corrected by mounting positioning based on the results of mounting position detection and component inspection (S7). The height of the mounting head is controlled and the component is mounted (S8). In response to the presence or absence of a mounting component, the processing shifts to processing S1 for continuation of processing, or shifts to processing S10 for end (S9) and the processing ends (S10).
    • 开始处理(S1),并且在存储部中的安装程序命令下顺序执行每个安装处理的控制(S2)。 电子部件位于安装头上,然后取出并保持(S3)。 BGA组件通过参考标记和检查的位置检测来定位,并且响应于对保持姿态的区分来执行校正。 在使用参考标记作为参考位置的检查中,鉴别焊料凸块的损耗和偏移以及焊料量不足的情况(S4)。 正常部件通过安装头移动到安装台上的印刷电路板上的安装位置附近(S5)。 确认并识别在印刷电路板上的目标安装位置处的识别标记(S6)。 基于安装位置检测和部件检查的结果(S7),通过安装定位来校正安装位置。 控制安装头的高度并安装组件(S8)。 响应于是否存在安装部件,处理转移到用于继续处理的处理S1,或者转移到结束处理S10(S9)并且处理结束(S10)。