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    • 54. 发明授权
    • Aperture control apparatus of programming shutter
    • 光圈控制装置
    • US4835564A
    • 1989-05-30
    • US137322
    • 1987-12-23
    • Norifumi NakagawaJunichi Matsumoto
    • Norifumi NakagawaJunichi Matsumoto
    • G03B7/087G03B7/097G03B9/10G03B9/24G03B17/18
    • G03B7/097
    • A drive current of a motor is controlled by an output of a pulse oscillator having a variable duty ratio in response to a shutter release operation. Shutter blades having the function of the diaphragm blade start to open the aperture for exposure in interlocked relationship with the rotation of the motor. The shutter blades are provided with a plurality of detection marks for use in detection of the shutter blade position, and every time each of the detection marks passes through a predetermined detection point, an aperture value detection circuit produces a detection pulse. Each of the detection pulses is supplied to an operation circuit which calculates a time interval between the detection pulses. The time interval between the detection pulses is compared with a reference time stored previously in a setting device so that the duty ratio of the output signal of the pulse oscillator in the next cycle of the detection pulse is controlled to control the rotational speed of the motor. Further, the duty ratio of the pulse oscillator is made equal to 100% so that the motive power at the initial operation is secured until the aperture value detection circuit produces a first detection pulse.
    • 电动机的驱动电流由响应于快门释放操作的具有可变占空比的脉冲振荡器的输出控制。 具有光阑叶片功能的快门叶片开始打开用于与电动机旋转互锁关系的曝光孔。 快门叶片设置有用于检测快门叶片位置的多个检测标记,并且每当检测标记通过预定检测点时,孔径值检测电路产生检测脉冲。 每个检测脉冲被提供给计算检测脉冲之间的时间间隔的运算电路。 将检测脉冲之间的时间间隔与预先存储在设定装置中的参考时间进行比较,使得在检测脉冲的下一周期中脉冲振荡器的输出信号的占空比被控制以控制电动机的转速 。 此外,使脉冲振荡器的占空比等于100%,使得确保初始操作时的动力直到孔径值检测电路产生第一检测脉冲。
    • 57. 发明授权
    • Powder container, powder supply device and image forming apparatus
    • 粉末容器,粉末供给装置和成像装置
    • US09547258B2
    • 2017-01-17
    • US14881317
    • 2015-10-13
    • Junichi MatsumotoTsukuru KaiHiroshi HosokawaMakoto KomatsuTadashi HayakawaYuzuru Ozawa
    • Junichi MatsumotoTsukuru KaiHiroshi HosokawaMakoto KomatsuTadashi HayakawaYuzuru Ozawa
    • G03G15/08
    • G03G15/0886G03G15/0832G03G15/0865G03G15/0872G03G15/0879G03G2215/0132
    • Provided is a powder container having a new structure capable of stable discharge and transport of a powder contained in a container by enabling the powder to be reliably discharged to the outside of the package while preventing the powder from spilling and flying out of the container. The powder container has a container body (138) for transporting powder contained therein from a first end side (138a) to a second end side (138b) thereof by self-rotating; a nozzle receiver (139) having a nozzle receiving hole (insertion section) (139a) arranged inside the second end side of the container body and configured to allow a transport nozzle (162) having a powder receiving inlet (170) to be inserted therein, and a supply port 139b arranged in at least a part of the nozzle receiver (139) and configured to supply the powder in the container body (138) to the powder receiving inlet (170): and a shutter (140) supported by the nozzle receiver 139 and configured to open and close the nozzle receiving hole (insertion section) 139a by sliding in response to insertion of the transport nozzle 162 into the nozzle receiver (139).
    • 本发明提供一种粉末容器,其具有通过使粉末能够可靠地排出到包装外部而能够稳定地排出和运送容器中的粉末的结构,同时防止粉末溢出并从容器中飞出。 该粉末容器具有:容纳体,用于通过自转旋转从第一端侧(138a)向第二端侧(138b)输送其中所含的粉末; 喷嘴接收器(139),其具有布置在容器主体的第二端侧内侧的喷嘴接收孔(插入部)(139a),并且构造成允许具有粉末接收入口(170)的输送喷嘴(162)插入其中 以及布置在喷嘴接收器(139)的至少一部分中并被配置为将粉末容纳在容器主体(138)中的粉末供应到粉末接收入口(170)的供应口139b,以及由所述容器主体 喷嘴接收器139,并且构造成响应于将输送喷嘴162插入喷嘴接收器(139)而滑动来打开和关闭喷嘴接收孔(插入部)139a。
    • 59. 发明授权
    • Image-forming apparatus and powder container
    • 成像设备和粉末容器
    • US08934813B2
    • 2015-01-13
    • US13413733
    • 2012-03-07
    • Hiroshi HosokawaTsukuru KaiJunichi MatsumotoMakoto KomatsuTadashi Hayakawa
    • Hiroshi HosokawaTsukuru KaiJunichi MatsumotoMakoto KomatsuTadashi Hayakawa
    • G03G15/08
    • G03G15/0886G03G15/0872
    • An image-forming apparatus includes a development device configured to form a visualized image with a developer, a powder supplier configured to supply the developer from a powder container to the development device and a housing in which the powder supplier and the development device are housed, a loading preparation position which allows the powder container to be placed from an outside of the housing and a loading position which enables the developer to be supplied to the development device from the powder container are set in the powder supplier, and the powder supplier includes a loading drive mechanism configured to move the powder container in a central axis line direction between the loading preparation position and the loading position while rotating the powder container about the central axis line of the powder container.
    • 图像形成装置包括:显影装置,被配置为用显影剂形成可视化图像;粉末供应器,被配置为将显影剂从粉末容器供应到显影装置;以及壳体,其中容纳有粉末供应器和显影装置, 将粉末容器从壳体外部放置的装载准备位置和使得能够从粉末容器向显影装置供给显影剂的装载位置设置在粉末供给体中,粉末供给体包括: 装载驱动机构,其构造成使粉末容器在装载准备位置和装载位置之间沿中心轴线方向移动,同时使粉末容器围绕粉末容器的中心轴线旋转。