公开(公告)号：US5586455A

公开(公告)日：1996-12-24

申请号：US412271

申请日：1995-03-28

申请人： Tooru Imai ,  Hiroshi Nishimura ,  Nobuichi Nishimura ,  Masahiro Imai ,  Kazutoshi Tani ,  Takayuki Hirano

发明人： Tooru Imai ,  Hiroshi Nishimura ,  Nobuichi Nishimura ,  Masahiro Imai ,  Kazutoshi Tani ,  Takayuki Hirano

IPC分类号： D06F37/40 ,  F16D11/14 ,  D06F23/04

CPC分类号： F16D11/14 ,  D06F37/40 ,  F16D2011/008

摘要： An automatic washing machine includes a clutch float having external gear teeth. The clutch float is located around a shaft which is driven by an electric motor and to which an agitator is secured. The clutch float couples the shaft to an inner rotatable tub when its external gear teeth are engaged with internal gear teeth at the inner tub side in a dehydration step. The clutch float moves upwardly in subjection to buoyancy when water is supplied into the inner tub in a wash step. The external gear teeth of the clutch float are disengaged from the internal gear teeth so that the shaft is decoupled from the inner tub. The washing machine further includes a rotation restricting float which moves upwardly in subjection to the buoyancy in the wash step to couple the inner tub to an outer stationary tub and which decouples the inner tub from the outer tub in the dehydration step. A device delivers a position signal indicative of the position of the clutch float which is vertically movable. Based on the position signal, a control device controls the drive motor. The drive motor is of an outer rotor type and a motor control circuit is disposed in its stator.

摘要翻译： 一种自动洗衣机包括具有外齿轮齿的离合器浮子。 离合器浮子位于由电动机驱动并且固定有搅拌器的轴周围。 当脱水步骤中，外部齿轮齿与内桶侧的内齿轮啮合时，离合器浮子将轴连接到内旋转桶。 当在洗涤步骤中将水供应到内桶中时，离合器浮子向上移动以浮力。 离合器浮子的外齿轮齿与内齿轮齿分离，使得轴与内桶分离。 洗衣机还包括旋转限制浮子，其在洗涤步骤中向上移动到浮力，以将内桶连接到外部固定桶，并且在脱水步骤中将内桶与外桶分离。 装置传送指示可垂直移动的离合器浮子的位置的位置信号。 基于位置信号，控制装置控制驱动马达。 驱动电机为外转子型，电机控制电路配置在定子中。

公开(公告)号：US5737944A

公开(公告)日：1998-04-14

申请号：US711932

申请日：1996-09-11

申请人： Hiroshi Nishimura ,  Masaru Koshimizu ,  Masahiro Imai ,  Koichi Hosomi ,  Yutaka Inagaki

发明人： Hiroshi Nishimura ,  Masaru Koshimizu ,  Masahiro Imai ,  Koichi Hosomi ,  Yutaka Inagaki

IPC分类号： D06F37/40 ,  D06F39/08

CPC分类号： D06F37/40

摘要： A washing machine includes an outer tub, a rotatable tub rotatably mounted in the outer tub, an agitator mounted in the rotatable tub, a hollow tub shaft transmitting a rotating force to the rotatable tub, an agitator shaft inserted in the tub shaft for transmitting a rotating force to the agitator and having a lower end, an electric motor including a stator concentric with the agitator shaft and a rotor mounted on the lower end of the agitator shaft, a clutch for changing between a first mode in which the tub shaft is operatively coupled to the agitator shaft in a dehydration step so that the motor rotor, the agitator shaft and the tub shaft are rotated together and a second mode in which the tub shaft is decoupled from the agitator shaft in a wash step so that the tub shaft is prevented from being rotated with the motor rotor and the agitator shaft, and a mechanism housing mounted on an outer bottom of the outer tub. The tub shaft, the agitator shaft, the motor and the clutch are mounted on the mechanism housing to be composed into an integral mechanism unit.

摘要翻译： 洗衣机包括外桶，可旋转地安装在外桶中的可旋转桶，安装在旋转桶中的搅拌器，向旋转桶传递旋转力的中空桶轴，插入桶轴中的搅拌轴， 旋转力到搅拌器并具有下端，电动机包括与搅拌器轴同心的定子和安装在搅拌轴的下端的转子;离合器，用于在第一模式之间切换，其中桶操作 在脱水步骤中耦合到搅拌器轴，使得马达转子，搅拌器轴和梭筒轴一起旋转，并且第二模式，其中，在洗涤步骤中，梭筒轴与搅拌器轴脱离，使得筒轴为 防止与电动机转子和搅拌轴转动，以及安装在外桶的外底上的机构壳体。 梭心轴，搅拌轴，马达和离合器安装在机构壳体上，构成整体机构单元。

公开(公告)号：US5778703A

公开(公告)日：1998-07-14

申请号：US773681

申请日：1996-12-24

申请人： Masahiro Imai ,  Hiroshi Nishimura ,  Masaru Koshimizu ,  Koichi Hosomi ,  Kazunobu Nagai ,  Isamu Nitta ,  Yutaka Inagaki

发明人： Masahiro Imai ,  Hiroshi Nishimura ,  Masaru Koshimizu ,  Koichi Hosomi ,  Kazunobu Nagai ,  Isamu Nitta ,  Yutaka Inagaki

IPC分类号： D06F37/30 ,  D06F37/40 ,  H02P3/04

CPC分类号： D06F37/40 ,  D06F37/304

摘要： A washing machine includes a hollow tub shaft mounted on a first stationary portion of the machine for rotation, a rotatable tub rotatably mounted on an upper end of the tub shaft, an agitator shaft concentrically inserted in the tub shaft for rotation, an agitator mounted on the upper end of the agitator shaft, a stator fixed to a second stationary portion of the machine to be concentric with the agitator shaft to constitute an electric motor together with the stator, and a clutch including a holder mounted on the tub shaft for rotation with the tub shaft. The clutch further includes a first engagement portion formed in a third stationary portion of the machine, a second engagement portion formed in the rotor, a lever mounted on the holder to be selectively engaged with one of the first and second engagement portions, the lever operatively coupling the rotor to the agitator shaft when engaged with the first engagement portion, the lever operatively coupling the rotor to both of the agitator and tub shafts when engaged with the second engagement portion, and toggle type springs holding the lever in engagement with the first and second engagement portions respectively.

摘要翻译： 洗衣机包括安装在机器的第一静止部分上以便旋转的中空桶轴，可旋转地安装在桶筒的上端的可旋转桶，同心地插入桶筒中以便旋转的搅拌器轴，搅拌器安装在 搅拌器轴的上端，定子固定到机器的第二静止部分以与搅拌器轴同心以与定子一起构成电动机;以及离合器，其包括安装在桶轴上的保持架，用于与 浴缸轴。 离合器还包括形成在机器的第三静止部分中的第一接合部分，形成在转子中的第二接合部分，安装在保持器上的杠杆，以选择性地与第一和第二接合部分中的一个接合，杠杆可操作地 当与第一接合部分接合时，将转子耦合到搅拌器轴，当与第二接合部分接合时，杠杆可操作地将转子连接到搅拌器和水槽轴;以及肘节式弹簧，其保持杆与第一和第二接合部分接合， 第二接合部。

公开(公告)号：US12103306B2

公开(公告)日：2024-10-01

申请号：US18213556

申请日：2023-06-23

申请人： Hiroshi Nishimura

发明人： Hiroshi Nishimura

IPC分类号： B41J2/14

CPC分类号： B41J2/1433 ,  B41J2/14201 ,  B41J2002/14306 ,  B41J2002/14338 ,  B41J2002/14419 ,  B41J2202/12

摘要： Printheads for a jetting apparatus. In one embodiment, a printhead comprises a plurality of flow-through jetting channels each configured to jet a print fluid out of a nozzle. The printhead further includes a supply manifold fluidly coupled to the flow-through jetting channels, a return manifold fluidly coupled to the flow-through jetting channels, and one or more bypass manifolds fluidly coupled between the supply manifold and the return manifold.

公开(公告)号：US20220288922A1

公开(公告)日：2022-09-15

申请号：US17196680

申请日：2021-03-09

申请人： Hiroshi Nishimura

发明人： Hiroshi Nishimura

IPC分类号： B41J2/045 ,  B41J2/14 ,  B41J2/21

摘要： Printheads and methods of operation. In one embodiment, a printhead includes a plurality of jetting channels comprising first jetting channels configured to jet a first print fluid and second jetting channels configured to jet a second print fluid, and a driver circuit communicatively coupled to actuators of the jetting channels. The driver circuit receives a drive waveform comprising non-jetting pulses and jetting pulses, and gating signals comprising a first active gating signal designated for jetting the first print fluid, and a second active gating signal designated for jetting the second print fluid. The driver circuit selectively applies the non-jetting pulses and the jetting pulses to actuators of the first jetting channels based on the first active gating signal to jet the first print fluid, and selectively applies the jetting pulses to actuators of the second jetting channels based on the second active gating signal to jet the second print fluid.

公开(公告)号：US20220281222A1

公开(公告)日：2022-09-08

申请号：US17194869

申请日：2021-03-08

申请人： Hiroshi Nishimura ,  Giang Vo ,  Cesar Hurtado

发明人： Hiroshi Nishimura ,  Giang Vo ,  Cesar Hurtado

IPC分类号： B41J2/14

摘要： Printheads and manifolds within printheads. In one embodiment, a method comprises determining a resonant frequency of jetting channels for a printhead, and selecting a target length for a manifold fluidly coupled to the jetting channels such that resonant frequencies of the manifold differ from the resonant frequency of the jetting channels by a threshold amount.

公开(公告)号：US11376857B2

公开(公告)日：2022-07-05

申请号：US17204046

申请日：2021-03-17

申请人： Hiroshi Nishimura

发明人： Hiroshi Nishimura

IPC分类号： B41J2/175 ,  B41J2/18 ,  B41J2/155 ,  B41J29/02

摘要： Printheads for a jetting apparatus. In one embodiment, a printhead comprises a plurality of jetting channels having nozzles on a bottom surface configured to jet a print fluid, and longitudinal sides disposed between the bottom surface and a top surface. The printhead also comprises Input/Output (I/O) ports disposed on one or more of the longitudinal sides, and configured to convey the print fluid into or out of the printhead. The printhead further includes one or more chain manifolds disposed between the I/O ports.

公开(公告)号：US11001070B2

公开(公告)日：2021-05-11

申请号：US15913795

申请日：2018-03-06

申请人： Hiroshi Nishimura

发明人： Hiroshi Nishimura

IPC分类号： B41J2/14 ,  B41J2/175 ,  B41J2/155 ,  B41J2/18

摘要： Apparatus and method for providing a print fluid to a flow-through printhead. The printhead has a row of jetting channels configured to jet droplets of a print fluid, a supply manifold fluidly coupled to the row of jetting channels, and a return manifold fluidly coupled to the row of jetting channels. A first reservoir is fluidly coupled to the supply manifold, and a second reservoir is fluidly coupled to the return manifold. The first reservoir and the second reservoir are fluidly isolated except through the printhead.

公开(公告)号：US10981388B2

公开(公告)日：2021-04-20

申请号：US16351147

申请日：2019-03-12

申请人： Hiroshi Nishimura

发明人： Hiroshi Nishimura

IPC分类号： B41J2/175 ,  B41J2/18 ,  B41J2/155 ,  B41J29/02

摘要： Printheads for a jetting apparatus. In one embodiment, a printhead comprises a plurality of jetting channels having nozzles on a bottom surface configured to jet a print fluid, and longitudinal sides disposed between the bottom surface and a top surface. The printhead also comprises Input/Output (I/O) ports disposed on one or more of the longitudinal sides, and configured to convey the print fluid into or out of the printhead. The printhead further includes one or more chain manifolds disposed between the I/O ports.

公开(公告)号：US10016991B1

公开(公告)日：2018-07-10

申请号：US15443520

申请日：2017-02-27

申请人： Hiroshi Nishimura

发明人： Hiroshi Nishimura

IPC分类号： B41J2/175 ,  B41J2/18 ,  B41J2/145 ,  B41J25/00 ,  B41J2/14

CPC分类号： B41J25/001 ,  B41J2/14233 ,  B41J2/1433 ,  B41J2/175 ,  B41J2/18 ,  B41J2002/14419 ,  B41J2002/14467 ,  B41J2202/12

摘要： A carriage assembly for a printer that reciprocates along scan directions. The carriage assembly includes at least one printhead having a row of jetting channels for ejecting a print fluid, and reservoirs mounted on the carriage assembly that each supply the print fluid to the printhead. At least one of reservoirs is mounted on the carriage assembly to be offset from the row of jetting channels.