Printer having paper feed roller
    81.
    发明授权
    Printer having paper feed roller 失效
    打印机有进纸辊

    公开(公告)号:US5397191A

    公开(公告)日:1995-03-14

    申请号:US994293

    申请日:1992-12-21

    Abstract: A printer which is compact, can accurately supply paper and has reduced noise characteristics. Additionally, the printer enables easy correction of paper jams and can be selectively operated in various modes according to the user's preference. The printer includes a paper feed roller which is pivotable between a paper feed position and a non-feeding position, a drive force transmitting mechanism for transmitting a drive force to the paper feed roller, a carriage reciprocatively movable along the width of the paper fed by the paper feed roller, and an intermediate transmission mechanism attached to the side of the carriage. Only when the carriage is in a stand-by position, the intermediate transmission mechanism couples with the drive force transmitting mechanism to transmit to the paper feed roller a paper-feed directional rotating force so as to rotate the paper feed roller to the paper feed position. The intermediate transmission mechanism is preferably an idler rotatably mounted on the side of the carriage. The paper feed roller is preferably driven through a planetary gear mechanism including a sun gear provided on a drive shaft, a paper-feed roller holder rotatably mounted on the drive shaft, and a planetary gear coaxially provided with the paper feed roller supported with the paper-feed roller holder.

    Abstract translation: 一种紧凑的打印机,可以准确地提供纸张并降低噪音特性。 此外,打印机能够容易地校正卡纸,并且可以根据用户的偏好以各种模式选择性地操作。 打印机包括可在进纸位置和非进给位置之间枢转的供纸辊,用于将驱动力传送到供纸辊的驱动力传递机构,沿着纸张供给辊的宽度可往复移动的托架 供纸辊和安装在滑架侧面的中间传动机构。 只有当托架处于待机位置时,中间传动机构与驱动力传递机构相连,才能将供纸辊传送给供纸辊的送纸定向旋转力,以便将供纸辊旋转到送纸位置 。 中间传动机构优选为可旋转地安装在滑架侧面的惰轮。 供纸辊优选地通过行星齿轮机构驱动,该行星齿轮机构包括设置在驱动轴上的太阳齿轮,可旋转地安装在驱动轴上的供纸辊保持架和同轴地设置有被纸张支撑的供纸辊的行星齿轮 进纸辊架。

    Operator compartment protecting device for construction vehicles
    82.
    发明授权
    Operator compartment protecting device for construction vehicles 失效
    施工车辆操作室保护装置

    公开(公告)号:US5326148A

    公开(公告)日:1994-07-05

    申请号:US990432

    申请日:1992-12-14

    CPC classification number: B62D33/0617 B60R21/11 B62D21/12 B62D27/065

    Abstract: An operator compartment protecting device (12) for construction vehicles is located to the rear and above an operator compartment (11) on a vehicle body (10) in order to protect the operator compartment (11). The operator compartment protecting device (12) includes: a gate-shaped support (15) including a pair of vertical members (13), and a connecting horizontal member (14) extending between and fixed by welding to a side surface of an upper end portion of one of the pair of vertical members (13) and a side surface of an upper end portion of the other of said pair of vertical members (13); a pair of beam members (16) each fixed by welding to the front surface of the upper end portion of each of the pair of vertical members (13) in such a manner that they are directed in a forward direction, and a ceiling plate (17) placed over and releasably secured, e.g., by bolts, to an upper surface of each of the pair of beam members (16), an upper surface of each of the pair of vertical members (13), and an upper surface of the connecting horizontal member. It is possible to lift the operator compartment (11) through the opening between the beam members (16) by merely releasing the engagement of the bolts (18).

    Abstract translation: 为了保护操作室(11),用于工程车辆的操作室保护装置(12)位于车身(10)上的操作室(11)的后部和上方。 操作室保护装置(12)包括:门形支撑件(15),包括一对垂直构件(13),以及连接水平构件(14),其通过焊接延伸并固定在上端的侧表面 所述一对垂直构件(13)中的一个的一部分和所述一对垂直构件(13)中的另一个的上端部的侧表面; 一对梁构件(16),每个梁构件(16)通过焊接固定在一对垂直构件(13)中的每一个垂直构件(13)的上端部的前表面上,使得它们沿向前方向定向;以及顶板 17)放置在例如通过螺栓可释放地固定到一对梁构件(16)中的每一个的上表面,一对竖直构件(13)中的每一个的上表面和 连接水平构件。 通过仅释放螺栓(18)的接合,能够将操作者舱(11)提升通过梁构件(16)之间的开口。

    Circuit device for a positional encoder
    83.
    发明授权
    Circuit device for a positional encoder 失效
    位置编码器电路装置

    公开(公告)号:US4796005A

    公开(公告)日:1989-01-03

    申请号:US81963

    申请日:1987-08-05

    CPC classification number: H03M1/305 G01D5/24404 G01D5/363

    Abstract: A circuit for an encoder apparatus of an incremental-type construction, including: a unit mechanically joined to a movable machine; a unit for outputting at least two signals having a phase shift and a periodic waveform in response to movement of the unit; a battery-type power supply; and an electric ciruit including a circuit for generating a timing pulse having predetermined frequency and pulse width, a circuit for detecting a change of the signals from the signal outputting circuit and for outputting a pulse signal in response to the change of signals, and a circuit for counting the pulse signal from the signal-change detecting circuit. The apparatus may be optical or magnetic in construction.

    Low electric power consumption voltage comparison device
    84.
    发明授权
    Low electric power consumption voltage comparison device 失效
    低功耗电压比较装置

    公开(公告)号:US4724339A

    公开(公告)日:1988-02-09

    申请号:US887403

    申请日:1986-08-12

    Applicant: Hiroshi Ishida

    Inventor: Hiroshi Ishida

    CPC classification number: G01R19/1658 H03K5/2418

    Abstract: Electric current supply circuits (23), (24) each having a switching element are inserted at an electric power supply side (31) and at an electric power return side (32) of a differential amplification means (10) in a voltage comparison device, and the electric current supply circuits having the switching element are controlled to turn ON/OFF. Thus, a voltage comparison device with a low electric power consumption and a high speed intermittent operation can be achieved.

    Abstract translation: PCT No.PCT / JP85 / 00631 Sec。 371日期1986年8月12日 102(e)日期1986年8月12日PCT提交1985年11月12日PCT公布。 第WO86 / 03012号公报 日期为1986年5月22日。具有开关元件的电流供给电路(23),(24)插入在差动放大装置(10)的电力供给侧(31)和电力返回侧(32) ),并且具有开关元件的电流供给电路被控制为接通/断开。 因此,可以实现具有低功耗和高速间歇操作的电压比较装置。

    Induction motor drive apparatus
    85.
    发明授权
    Induction motor drive apparatus 失效
    感应电动机驱动装置

    公开(公告)号:US4558269A

    公开(公告)日:1985-12-10

    申请号:US453895

    申请日:1982-12-14

    CPC classification number: H02P23/0077 H02P21/06

    Abstract: Disclosed is an induction motor drive apparatus which produces three-phase current commands using a speed error (ER) between a speed command and an actual speed (n) for driving an induction motor (10) on the basis of the current commands. The induction motor drive apparatus receives the speed error (ER) and the actual speed (n) as input signals and generates, through digital processing, a first phase sinusoidal signal and a second phase sinusoidal signal shifted by 2.pi./3 from the first phase sinusoidal signal. The first and second sinusoidal signals are used for generating a phase current (i.sub.w) in a first and second phase currents (i.sub.u, i.sub.v) which are in turn used to generate a third phase current (i.sub.w) such that the first, second and third phase current commands will have a sum equal to zero.

    Abstract translation: PCT No.PCT / JP82 / 00137 Sec。 371日期1982年12月14日第 102(e)1982年12月14日日期PCT提交1982年4月22日PCT公布。 WO 83/0392 PCT出版物 日期:1983年11月10日。公开的是一种感应电动机驱动装置,其产生三相电流指令,使用速度指令和用于驱动感应电动机(10)的实际速度(n)之间的速度误差(ER) 的当前命令。 感应电机驱动装置接收速度误差(ER)和实际速度(n)作为输入信号,并通过数字处理产生从第一相位移位2π/ 3的第一相位正弦信号和第二相位正弦信号 正弦信号。 第一和第二正弦信号用于产生第一和第二相电流(iu,iv)中的相电流(iw),其相反地用于产生第三相电流(iw),使得第一,第二和第三相 相电流命令的总和等于零。

    Pulse coder using magnetoresistance elements having an improved z-phase
signal pattern
    86.
    发明授权
    Pulse coder using magnetoresistance elements having an improved z-phase signal pattern 失效
    使用具有改进的z相信号图案的磁阻元件的脉冲编码器

    公开(公告)号:US4551676A

    公开(公告)日:1985-11-05

    申请号:US448206

    申请日:1982-12-09

    CPC classification number: G01D5/145 G01D5/2451 H03M1/287

    Abstract: A pulse coder comprises a rotating member (1) on which first and second magnetic patterns (221, 222; 221', 222') are formed and a fixed member (3) on which first and second magnetoresistance patterns (MR5, MR6) are formed. When the first and second magnetic patterns of the rotating member directly face the first and second magnetoresistance patterns, respectively, of the fixed member, the first and second magnetoresistance patterns have a minimum resistance value and a maximum resistance value, respectively. The first and second magnetic patterns are constructed by alternately and irregularly arranging strong magnetic field generating areas and weak magnetic field generating areas.

    Abstract translation: 脉冲编码器包括旋转构件(1),其上形成有第一和第二磁性图案(221,222; 221',222')和固定构件(3),第一和第二磁阻图案(MR5,MR6) 形成。 当旋转构件的第一和第二磁性图案分别直接面对固定构件的第一和第二磁阻图案时,第一和第二磁阻图案分别具有最小电阻值和最大电阻值。 第一和第二磁图案通过交替地和不规则地布置强磁场产生区域和弱磁场产生区域来构造。

    Motor speed detecting device
    87.
    发明授权

    公开(公告)号:US4551662A

    公开(公告)日:1985-11-05

    申请号:US711535

    申请日:1985-03-06

    CPC classification number: G01P3/488 G01P3/481 Y10S388/912

    Abstract: Disclosed is a motor speed detecting device which comprises a first slotted disc (3) having one slot and mounted on a rotational shaft (2) of a motor (1) that is driven by a motor drive unit (7) and a second disc (4) having a plurality of slots, a first magnetic sensor (5) mounted on the first gear (3) in close proximity thereto and outputting two signals with a phase difference and a second magnetic sensor (6) mounted on the second slotted disc in close proximity thereto and outputting two signals with the phase difference and their inverted signals and a detector circuit (8) receiving the output of the first and the second magnetic sensors. The detector circuit (8) is provided, wherein two outputs from the first magnetic sensor are compared with a differential amplified voltage and a reference voltage, one pulse per one revolution of the rotational shaft (2) is output, and in addition, with the four outputs provided from the second magnetic sensor (6), differential amplification, inverting amplification, comparison and vector synthetic comparison are implemented to provide a pulse per 22.5 degrees, where the phase of the output waveform in the magnetic sensor in response to the width of the slot, resulting in a sinusoidal wave having a different phase by 90 degrees from each other, in response to the number of the slots of the second disc (4), and a square wave of as many as four times the frequencies as the number of slots of the second disc (4) and a square wave of one-fourth period of phase difference with regard to the square wave, are provided to output therewith. Thus, using the relevant device, it is applicable to a to-be-detected rotational shaft of which the rotational shaft (2) is hollow and to provide a precision of detection four times as great.

    Inverter circuit
    88.
    发明授权
    Inverter circuit 失效
    逆变电路

    公开(公告)号:US4482854A

    公开(公告)日:1984-11-13

    申请号:US433103

    申请日:1982-10-06

    CPC classification number: H02M7/537 H02M5/458

    Abstract: An inverter circuit having a bridge circuit comprising a plurality of switching elements connected in the form of a bridge for converting, into alternating current, a DC voltage produced by a DC voltage generating unit and which is received through a first switching circuit. The inverter circuit includes a pair of diodes and a spike absorbing capacitor which constitute a series network wherein the diodes are connected so as to be forward biased with respect to the DC voltage and the spike absorbing capacitor is connected between the diodes. The series network is connected in parallel with the bridge circuit and is connected to the DC voltage generating unit through the first switching circuit. The spike absorbing capacitor is connected in parallel with a smoothing capacitor of the DC voltage generating unit.

    Abstract translation: 一种逆变器电路,具有桥式电路,该桥式电路包括以桥形式连接的多个开关元件,用于将由直流电压产生单元产生的直流电压转换为交流电流,并通过第一开关电路接收。 逆变器电路包括构成串联网络的一对二极管和尖峰吸收电容器,其中二极管相对于直流电压被正向偏置,并且尖峰吸收电容器连接在二极管之间。 串联网络与桥式电路并联连接,并通过第一开关电路连接到直流电压产生单元。 尖峰吸收电容器与直流电压产生单元的平滑电容器并联连接。

    Mechanism for supporting an original document cover lid of an
electrostatic copying apparatus
    89.
    发明授权
    Mechanism for supporting an original document cover lid of an electrostatic copying apparatus 失效
    用于支撑静电复印设备的原始文件盖盖的机构

    公开(公告)号:US4357101A

    公开(公告)日:1982-11-02

    申请号:US171536

    申请日:1980-07-23

    Abstract: A mechanism for supporting a cover lid, particularly an original document cover lid of an electrostatic copying apparatus, includes a generally U-shaped support member for supporting the cover lid. A pair of arms of the support member are fixed to a pair of hinge members which are mounted on the machine frame for rotation about an axis. Support pieces are fixed to the hinge members for rotation therewith about the axis. First springs are connected to the support pieces for urging the hinge members, the support member and the cover lid to rotate about the axis in a first direction toward an open position of the cover lid. A revolving plate is pivotally mounted on the machine frame, and a support bar is fixed to one of the hinge members and extends into an elongated opening of the revolving plate, such that rotation of the hinge members around the axis causes the support bar to pivot the revolving plate between first and second positions. An oscillating lever mounted on the machine frame has a projection fitting into the notch when the revolving plate is in the first position and the cover lid is in the open position, such that the projection maintains the cover lid in the open position. A second spring biases the projection against an arc-shaped surface of the revolving plate when the cover lid is moved from the open position toward a closed position thereof.

    Abstract translation: 用于支撑盖盖,特别是静电复印设备的原始文件盖盖的机构包括用于支撑盖盖的大致U形的支撑构件。 支撑构件的一对臂固定到一对铰链构件,所述一对铰链构件安装在机架上以围绕轴线旋转。 支撑件固定到铰链构件上,用于围绕轴线旋转。 第一弹簧连接到支撑件,用于推动铰链构件,支撑构件和盖盖围绕轴线在第一方向上朝着盖盖的打开位置旋转。 旋转板枢转地安装在机架上,并且支撑杆固定到其中一个铰链构件并延伸到旋转板的细长开口中,使得铰链构件绕轴线的旋转使得支撑杆枢转 第一和第二位置之间的旋转板。 当旋转板处于第一位置并且盖盖处于打开位置时,安装在机架上的摆动杆具有插入凹口中的突起,使得突起将盖盖保持在打开位置。 当盖盖从打开位置向其关闭位置移动时,第二弹簧将突起偏置在旋转板的弧形表面上。

    Induction motor drive apparatus
    90.
    发明授权
    Induction motor drive apparatus 失效
    感应电动机驱动装置

    公开(公告)号:US4327315A

    公开(公告)日:1982-04-27

    申请号:US89739

    申请日:1979-10-31

    CPC classification number: H02P27/045 H02P27/048 H02P2207/01 H02P27/047

    Abstract: Disclosed is an induction motor drive apparatus which brings the actual speed of an induction motor into coincidence with a command speed by varying the frequency and effective value of a three-phase AC voltage applied to the induction motor. The apparatus includes an inverter for generating three-phase AC voltage, a speed deviation signal generator, an amplitude controller for controlling the amplitude of the speed deviation signal, an adder for adding together a voltage signal which conforms to the actual speed and the speed deviation signal which has been controlled, a rectangular waveform signal generator, and a pulse width modulator. The rectangular waveform signal generator is adapted to produce a three-phase rectangular signal whose frequency is proportional to the output voltage value of the adder. The rectangular signal of each phase is modulated in pulse width on the basis of the speed deviation, the inverter being controlled by each resulting pulse-width modulated rectangular signal to thereby vary the effective value of the three-phase AC voltage.

    Abstract translation: 公开了一种感应电动机驱动装置,其通过改变施加到感应电动机的三相交流电压的频率和有效值来使感应电动机的实际速度与指令速度一致。 该装置包括用于产生三相AC电压的逆变器,速度偏差信号发生器,用于控制速度偏差信号幅度的振幅控制器,用于将符合实际速度和速度偏差的电压信号相加的加法器 已被控制的信号,矩形波形信号发生器和脉冲宽度调制器。 矩形波形信号发生器适于产生频率与加法器的输出电压值成比例的三相矩形信号。 每个相位的矩形信号基于速度偏差以脉冲宽度调制,逆变器由每个得到的脉宽调制矩形信号控制,从而改变三相交流电压的有效值。

Patent Agency Ranking