公开(公告)号：US5147141A

公开(公告)日：1992-09-15

申请号：US426773

申请日：1989-10-26

申请人： Atsuo Sakaida ,  Yoshiyuki Ikezaki ,  Akira Iriguchi ,  Takeshi Niikawa ,  Masashi Suzuki

发明人： Atsuo Sakaida ,  Yoshiyuki Ikezaki ,  Akira Iriguchi ,  Takeshi Niikawa ,  Masashi Suzuki

IPC分类号： B41J2/30 ,  H01L41/04

CPC分类号： H01L41/042 ,  B41J2/30

摘要： A driver circuit for driving a piezoelectric element, including a charging circuit having a DC power source and a coil for charging the piezoelectric element, and a discharging circuit for discharging the piezoelectric element. When the piezoelectric element is charged, a first switching device in the charging circuit is held on until a voltage of the element reaches a predetermined level below a line voltage of the power source. A second switching device provided in the discharging circuit is turned on at the time when the first switching device is turned off or at a predetermined later time, and is turned off by the time when said first switching device is again turned on next activation of the piezoelectric element. A voltage limiter inhibits the voltage of the piezoelectric element element from exceeding the predetermined level. The driver circuit may be used for a dot-matrix printer, which may be adapted to discharge the piezoelectric element for a comparatively long time where a distance between adjacent two dots to be formed is larger than a predetermined value.

摘要翻译： 一种用于驱动压电元件的驱动电路，包括具有DC电源的充电电路和用于对压电元件充电的线圈，以及用于使压电元件放电的放电电路。 当压电元件被充电时，充电电路中的第一开关装置被保持，直到元件的电压达到低于电源的线电压的预定电平。 设置在放电电路中的第二开关装置在第一开关装置关闭时或在预定的稍后时间被导通，并且在所述第一开关装置再次接通下一次激活时被关闭 压电元件 电压限制器抑制压电元件的电压超过预定值。 驱动器电路可以用于点阵式打印机，其可适于将压电元件放电相对较长的时间，其中相邻的两个点之间的距离大于预定值。

公开(公告)号：US5152619A

公开(公告)日：1992-10-06

申请号：US645484

申请日：1991-01-24

申请人： Takeshi Niikawa ,  Masashi Suzuki

发明人： Takeshi Niikawa ,  Masashi Suzuki

IPC分类号： B41J29/20 ,  B41J2/30

CPC分类号： B41J2/30

摘要： A dot-matrix printer with a print head having plural print elements which are disposed in a row and selectively activated to form a dot or dots in a vertical row of a dot matrix pattern representing a character, having a device for adding to a content of a memory the numbers of dots which are formed by the elements; a device for measuring a time lapse; a temperature sensor for sensing a temperature of the print head; a device for substracting a predetermined value based upon the temperature sensed by the temperature sensor at predetermined time intervals; a device for checking whether the content of the memory has exceeded a reference value; and a control device for controlling the print head so as to cool the print head if the content of the memory has exceeded the predetermined value.

摘要翻译： 一种点阵式打印机，其具有打印头，所述打印头具有多个打印元素，所述打印头被布置成行并选择性地激活以在表示字符的点阵图案的垂直行中形成点或点，具有用于添加到 记忆由元素形成的点数; 用于测量时间流逝的装置; 用于感测打印头的温度的温度传感器; 基于温度传感器以预定时间间隔感测的温度来减去预定值的装置; 用于检查存储器的内容是否超过参考值的装置; 以及控制装置，用于如果存储器的内容已经超过预定值，则控制打印头以冷却打印头。

公开(公告)号：US5147143A

公开(公告)日：1992-09-15

申请号：US536787

申请日：1990-06-12

申请人： Toshiki Morita ,  Takeshi Niikawa ,  Kiroyuki Kato ,  Masashi Suzuki

发明人： Toshiki Morita ,  Takeshi Niikawa ,  Kiroyuki Kato ,  Masashi Suzuki

IPC分类号： B41J19/18 ,  B41J19/30 ,  B41J29/38 ,  H02P8/08

CPC分类号： B41J29/38 ,  H02P8/08 ,  Y10S400/903

摘要： A printer which includes a position controller for moving a printing head to a predetermined initial position by driving a stepping motor during initial processing operation, and a current controller for supplying a second current to the stepping motor to spontaneously start the stepping motor. Since the stepping motor is driven by the second current which is smaller than a first current to be supplied during printing, the noise to be produced during the initial homing operation can be minimized.

摘要翻译： 一种打印机，其包括位置控制器，用于在初始处理操作期间通过驱动步进电机将打印头移动到预定的初始位置，以及电流控制器，用于向步进电机提供第二电流以自动启动步进电机。 由于步进电机由打印期间要提供的第一电流的第二电流驱动，所以可以使在初始归位操作期间产生的噪声最小化。

公开(公告)号：US4866326A

公开(公告)日：1989-09-12

申请号：US156584

申请日：1988-02-17

申请人： Takeshi Niikawa ,  Masashi Suzuki

发明人： Takeshi Niikawa ,  Masashi Suzuki

IPC分类号： B41J2/295 ,  B41J2/30

CPC分类号： B41J2/295 ,  B41J2/30

摘要： An impact dot-matrix printer having a print head which includes a piezoelectric element and a print element such as a print wire activated by the piezoelectric element, wherein the print head is movable between a printing area and a non-printing area of the printer. A pressure detector is provided for detecting a printing pressure of the print element. The detector includes a pressure-sensitive element which is disposed in a predetermined position in the non-printing area, in which the print element is operable to act on the pressure-sensitive element. A voltage controller connected to the pressure detector and the piezoelectric element is provided for controlling a voltage applied to the piezoelectric element, based on an output of the pressure detector, such that the printing pressure coincides with a predetermined value. Since the printing pressure is varied with a temperature of the piezoelectric element, the voltage may be controlled based on the temperature of the piezoelectric element detected by a temperature sensor.

摘要翻译： 一种具有打印头的冲击式点阵打印机，包括压电元件和诸如由压电元件激活的打印线的打印元件，其中打印头可在打印机的打印区域和非打印区域之间移动。 提供了用于检测打印元件的打印压力的压力检测器。 检测器包括压敏元件，该压敏元件设置在非打印区域中的预定位置，其中打印元件可操作地作用在压敏元件上。 提供连接到压力检测器和压电元件的电压控制器，用于基于压力检测器的输出来控制施加到压电元件的电压，使得打印压力与预定值一致。 由于印刷压力随着压电元件的温度而变化，所以可以基于由温度传感器检测的压电元件的温度来控制电压。

公开(公告)号：US08950554B2

公开(公告)日：2015-02-10

申请号：US13145286

申请日：2009-04-09

申请人： Takeshi Niikawa

发明人： Takeshi Niikawa

IPC分类号： B66B5/04

CPC分类号： B66B5/044

摘要： Provided is an elevator governor capable of achieving, with a simple configuration, an overspeed detection mechanism to which rotation dependence is added while preventing a decrease in reliability due to the generation of vibrations and noises and the wear of parts. For this purpose, the elevator governor includes: a sheave on which a rope moving in response to the movement of an ascending and descending body of an elevator is wound, and which changes the rotation speed in one direction in response to the ascent speed of the ascending and descending body and changes the rotation speed in the other direction in response to the descent speed of the ascending and descending body; a fly-weight which is provided in the sheave and increases and decreases an outward moving quantity in response to an increase and decrease in the rotation speed of the sheave; a detector which is provided in proximity to the fly-weight and performs overspeed detection of the sheave when the fly-weight has moved outward by a predetermined quantity; and a stopper which is provided in proximity to the fly-weight and prevents the fly-weight from moving outward more than or equal to the predetermined quantity while the sheave is rotating in a predetermined direction which is either of the two rotation directions.

摘要翻译： 提供一种能够以简单的结构实现超速检测机构的电梯调速器，其中增加旋转依赖性，同时防止由于振动和噪声的产生以及零件的​​磨损导致的可靠性降低。 为此，电梯调速器包括：缠绕有响应于升降机的上升和下降主体的运动而移动的绳索的绳轮，并且响应于上升速度改变沿一个方向的转速 上升和下降的身体，并且响应于上升和下降的身体的下降速度而改变另一方向的旋转速度; 设置在滑轮中的飞重，响应于滑轮的转速的增加和减小而增加和减少向外移动量; 设置在飞行物附近的检测器，并且当飞行重量已经向外移动预定量时执行滑轮的超速检测; 以及设置在飞轮附近的止动件，并且在滑轮沿着两个旋转方向中的任一个的预定方向旋转时，防止飞轮向外移动超过或等于预定量。

公开(公告)号：US20150014100A1

公开(公告)日：2015-01-15

申请号：US14370122

申请日：2012-03-06

申请人： Takeshi Niikawa

发明人： Takeshi Niikawa

IPC分类号： B66B5/04

CPC分类号： B66B5/046

摘要： An elevator governor to actuate an emergency stop device when a car descends, with a door kept open, includes: a pendulum which moves to a radially outer side of a sheave based on rotational speed of the sheave; a rope constraining mechanism which constrains a governor rope when the pendulum has moved when the car is descending; a protruding body provided in the pendulum; a cam, controlled by a cam moving mechanism, configured to move between a protruding position to contact the protruding body and a retracted position to not contact the protruding body, when the car door is open. A cam surface, when the cam is in the protruding position, moves the pendulum to the radially outer side of the sheave over a moving distance, and the cam moving mechanism moves the cam to the protruding position in the process of movement of the cam.

摘要翻译： 一种电梯调速器，当轿厢下降时，门保持打开，致动紧急停止装置包括：摆轮，其基于滑轮的转速移动到滑轮的径向外侧; 绳索约束机构，当汽车下降时摆锤已经移动时约束调速器绳索; 设置在摆锤中的突出体; 由凸轮移动机构控制的凸轮被构造成当轿厢门打开时在与突出体接触的突出位置和缩回位置之间移动以不接触突出体。 当凸轮处于突出位置时，凸轮表面在移动距离上将摆动件移动到滑轮的径向外侧，并且凸轮移动机构在凸轮运动的过程中将凸轮移动到突出位置。

公开(公告)号：US20150251877A1

公开(公告)日：2015-09-10

申请号：US14435330

申请日：2012-12-17

申请人： Takeshi NIIKAWA

发明人： Takeshi Niikawa

IPC分类号： B66B5/04 ,  B66B5/16

CPC分类号： B66B5/04 ,  B66B5/046 ,  B66B5/16

摘要： In an elevator apparatus, an acceleration detector that generates an acceleration signal that corresponds to acceleration in a direction of travel of a car is mounted to the car. A car velocity monitoring portion finds a traveling velocity of the car from the acceleration signal from the acceleration detector. An excessive velocity is preset in the car velocity monitoring portion. The car velocity monitoring portion stops the car by means of a braking apparatus to if the traveling velocity of the car reaches the preset excessive velocity.

摘要翻译： 在电梯装置中，将安装有轿厢行驶方向上的加速度的加速度信号的加速度检测器安装在轿厢上。 车速监视部根据来自加速度检测器的加速度信号求出轿厢的行驶速度。 轿厢速度监测部中预先设定过大的速度。 轿厢速度监视部通过制动装置停止轿厢，以使轿厢的行驶速度达到设定的过大速度。

公开(公告)号：US20120024636A1

公开(公告)日：2012-02-02

申请号：US13262876

申请日：2009-07-23

申请人： Takeshi Niikawa

发明人： Takeshi Niikawa

IPC分类号： B66B3/00

CPC分类号： B66B5/02

摘要： In an elevator derailment detecting apparatus, first and second conducting wires are disposed parallel to a direction of raising and lowering of an ascending/descending body inside a hoistway. First and second contacts that respectively contact the first and second conducting wires if the ascending/descending body disengages from a guide rail are mounted to the ascending/descending body. The first conducting wire is set to positive electric potential, and the second conducting wire is set to ground electric potential. The detecting portion detects by the presence or absence of conduction between the first contact and the first conducting wire whether or not the ascending/descending body is disengaged from the guide rail.

摘要翻译： 在电梯出轨检测装置中，第一导线和第二导线平行于井道内升降体的升降方向。 如果上升/下降主体与导轨分离，则分别接触第一和第二导线的第一和第二触点被安装到升降体上。 将第一导线设定为正电位，将第二导线设定为接地电位。 检测部分通过第一触点和第一导线之间是否存在导电来检测上升/下降主体是否与导轨脱离接触。

公开(公告)号：US5020927A

公开(公告)日：1991-06-04

申请号：US385995

申请日：1989-07-27

申请人： Takeshi Niikawa

发明人： Takeshi Niikawa

IPC分类号： B41J2/255 ,  B41J2/51 ,  G06K15/10

CPC分类号： B41J2/51 ,  G06K15/10 ,  G06K2215/111

摘要： A control system for a dot printer having a printing head mounting at least two printing elements thereon per row along a moving direction of the printing head. The printing elements are selectively driven according to a moving position of the printing head to print a dot at a desired column position on a printing paper. The control system comprises a grouping means for grouping dot data to be printed into two groups, wherein the grouping means first groups into one of the two groups the dot data to be printed at column positions spaced a distance equal to or greater than a moving distance of the printing head during a period when the same printing element can be driven, and secondly groups into the other group the remaining dot data not grouped in the first grouping step; and a driving means for driving the printing element assignable to each group on the basis of the data grouped to each group. The dots are assigned independently of what column they are in.

摘要翻译： 一种用于点打印机的控制系统，其具有打印头，其沿着打印头的移动方向每行安装至少两个打印元件。 打印元件根据打印头的移动位置被选择性地驱动，以在打印纸上的期望的列位置上打印点。 控制系统包括用于将要打印的点数据分组为两组的分组装置，其中分组装置首先将两个组中的一个组中的点数据分组在距离等于或大于移动距离的列位置 在第一分组步骤中未分组的剩余点数据被分组到另一组中; 以及驱动装置，用于基于分组到每个组的数据来驱动可分配给每个组的打印元件。 点是独立于它们所在的列分配的。

公开(公告)号：US4925325A

公开(公告)日：1990-05-15

申请号：US185761

申请日：1988-04-25

申请人： Takeshi Niikawa

发明人： Takeshi Niikawa

IPC分类号： B41J11/48 ,  B41J11/66 ,  B41J11/70 ,  B41J13/00 ,  B41J13/10

CPC分类号： B41J13/0018 ,  B41J11/48 ,  B41J11/663 ,  B41J11/666 ,  B41J11/70 ,  B41J13/0009 ,  B41J13/10

摘要： A printer of the type in which printing is performed in response to data supplied from a host computer and the printer is selectively rendered in an on-line mode enabling to receive the data from the host computer and in an off-line mode disabling to receive the data therefrom. A recording paper is firstly moved beyond a reference line by a desired length corresponding to a desired amount of upper margin of the recording paper. The recording paper is then moved backwardly by a distance between a print position and the reference line, whereby the desired amount of upper margin is reserved when printing is started. In another aspect of the invention, an elongated, web-like recording sheet is moved toward a cutting blade and is cut at an appropriate line on the sheet. Then, the sheet is backwardly moved by a predetermined distance toward the print position.