Paper feeding unit and image forming apparatus having the same

    公开(公告)号:US09624055B2

    公开(公告)日:2017-04-18

    申请号:US14684480

    申请日:2015-04-13

    Abstract: A paper feeding apparatus for an image forming apparatus is provided. The paper feeding apparatus includes a first paper feeding roller, a first one-way rotation transmission member disposed coaxially on the first paper feeding roller to transmit a first one-way rotational force to the first paper feeding roller, a second paper feeding roller spaced apart from the first paper feeding tray, a second one-way rotation transmission member disposed coaxially on the second paper feeding roller to transmit a second one-way rotational force to the second paper feeding roller, a drive source to rotate the first and second paper feeding rollers, a first power transmission member disposed between the first one-way rotation transmission member and the drive source, and a second power transmission member disposed between the second one-way rotation transmission member and the drive source.

    Automatic document feeder
    2.
    发明授权
    Automatic document feeder 有权
    自动送纸器

    公开(公告)号:US08998195B2

    公开(公告)日:2015-04-07

    申请号:US13910543

    申请日:2013-06-05

    Abstract: An automatic document feeder includes a paper transmitting path for guiding documents, a driving motor for providing driving torque, a pickup device disposed at the upstream of the paper transmitting path, an output device disposed at the downstream of the paper transmitting path and transmitting rollers disposed along the paper transmitting path for transmitting the documents, a first driving gear disposed between the pickup device and the output device, a transmitting gear swing arm equipped with a transmitting gear set and axially hinged with the first driving gear to swing according to the driving torque between a first position meshing the transmitting gear set with the pickup device and a second position idling the transmitting gear set, an actuator connected with the output device and a braking device disposed on the output device for locking the transmitting gear swing arm according to the position of the output device.

    Abstract translation: 自动进稿器包括用于引导文件的纸张传送路径,用于提供驱动扭矩的驱动电机,设置在纸张传送路径的上游的拾取装置,设置在纸张传送路径下游的输出装置和布置的传送辊 沿着用于传送文件的纸张传送路径,设置在拾取装置和输出装置之间的第一驱动齿轮,配备有传动齿轮组的传动齿轮摆臂,并与第一驱动齿轮轴向铰接以根据驱动扭矩摆动 在传动齿轮组与拾取装置之间啮合的第一位置和空转传动齿轮组之间的第二位置,与输出装置连接的致动器和设置在输出装置上的制动装置,用于根据位置锁定传动齿轮摆臂 的输出设备。

    Image forming apparatus
    3.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US08939448B2

    公开(公告)日:2015-01-27

    申请号:US14228538

    申请日:2014-03-28

    Inventor: Yohei Hashimoto

    Abstract: There is provided an image forming apparatus including a driving source, a switchback roller which switches between a normal rotation direction and a reverse rotation direction, first and second gear train for rotating the switchback roller in the normal and reverse rotation directions, respectively, a switching mechanism which switches among a first mode for transmitting driving force to the first gear train, a second mode for transmitting the driving force to the second gear train, and a third mode for not to transmit the driving force, a switching element which switches between a first state allowing switching of the switching mechanism into the first or third mode and a second state allowing switching of the switching mechanism into the second mode; and a controller which controls a state change of the switching element between the first state and the second state.

    Abstract translation: 提供一种图像形成装置,包括驱动源,在正常旋转方向和反向旋转方向之间切换的回转辊,用于分别在正向和反向旋转方向上旋转回转辊的第一和第二齿轮系,切换 在将驱动力传递到第一齿轮系的第一模式和将驱动力传递到第二齿轮系的第二模式和不传递驱动力的第三模式之间切换的开关元件, 第一状态允许切换机构切换到第一或第三模式,以及允许切换机构切换到第二模式的第二状态; 以及控制器,其控制所述开关元件在所述第一状态和所述第二状态之间的状态变化。

    Automatic document feeder and media record equipment using the same
    4.
    发明授权
    Automatic document feeder and media record equipment using the same 有权
    自动送纸器和使用相同的媒体记录设备

    公开(公告)号:US08849176B2

    公开(公告)日:2014-09-30

    申请号:US13551577

    申请日:2012-07-17

    Abstract: An automatic document feeder and a media record equipment using the same are provided. The automatic document feeder includes a frame, a cover and a gear chain. An end of the cover pivoted to the frame has a cam. The gear chain disposed in the frame has multiple driven gears and a rotating unit. The driven gears engaged with each other rotate about a first axial direction. The rotating unit having a first rock arm contacting the cam and a second rock arm with one of the driven gears disposed thereon is capable of rotating about the first axial direction. The cam pushes the first rock arm to drive the rotating unit to rotate about the first axial direction, and then an engagement between the driven gear on the second rock arm is released by departing from another driven gear engaged therewith when the cover opens relative to the frame.

    Abstract translation: 提供了一种自动送纸器和使用其的介质记录设备。 自动进纸器包括框架,盖子和齿轮链。 枢转到框架的盖的端部具有凸轮。 设置在框架中的齿轮链具有多个从动齿轮和旋转单元。 彼此啮合的从动齿轮围绕第一轴向旋转。 具有与凸轮接触的第一摇臂和具有设置在其上的从动齿轮中的一个的第二摇臂的旋转单元能够围绕第一轴向旋转。 凸轮推动第一摇臂以驱动旋转单元围绕第一轴向方向旋转,然后当盖相对于第二摇臂旋转时,第二摇臂上的从动齿轮与其啮合的从动齿轮之间的接合被释放 帧。

    Sheet conveying device
    5.
    发明授权
    Sheet conveying device 有权
    纸张输送装置

    公开(公告)号:US08807558B2

    公开(公告)日:2014-08-19

    申请号:US13799715

    申请日:2013-03-13

    Abstract: A sheet conveying device includes: a main body; a cover; a first roller; and a second roller. The main body defines a conveying passage along which a sheet is conveyed. The cover is supported to the main body and movable between a closed position in which the cover covers the main body from above and an open position in which the cover is moved upward from the main body so as to be spaced away from the main body. The first roller is rotatably supported to the cover and configured to discharge the sheet from the conveying passage to an outside of the main body. The second roller is rotatably supported to the main body and disposed in confrontation with the first roller while interposing the conveying passage between the first roller and the second roller when the cover is at the closed position.

    Abstract translation: 片材输送装置包括:主体; 封面; 第一辊; 和第二辊。 主体限定了输送通道,片材被输送到该输送通道。 盖子支撑在主体上,并且在盖子从上方覆盖主体的关闭位置和盖子从主体向上移动的打开位置之间移动,以便与主体间隔开。 第一辊被可旋转地支撑在盖上并构造成将片材从输送通道排出到主体的外部。 当盖处于关闭位置时,第二辊被可旋转地支撑到主体并且与第一辊对对设置,同时在第一辊和第二辊之间插入输送通道。

    MEDIUM SUPPLYING APPARATUS AND IMAGE FORMING APPARATUS
    6.
    发明申请
    MEDIUM SUPPLYING APPARATUS AND IMAGE FORMING APPARATUS 有权
    中型供应装置和图像形成装置

    公开(公告)号:US20130126659A1

    公开(公告)日:2013-05-23

    申请号:US13664909

    申请日:2012-10-31

    Applicant: Kikuya NAKADA

    Inventor: Kikuya NAKADA

    Abstract: A medium supplying apparatus for applying a back tension opposite to a transferring direction of a rolled medium being transferred by a transfer unit, to the rolled medium, includes a driving unit including a drive gear to be rotated in a forward direction and a reverse direction; a rotation transmitting mechanism that includes a one-way clutch and a torque limiter and transmits a rotational force between the driving unit and a medium rotation shaft that rotatably holds the rolled medium via the one-way clutch and the torque limiter; and a control unit that controls the driving unit to be one of states including being rotated in the forward direction, being rotated in the reverse direction and not being power supplied while the rolled medium is being transferred by the transfer unit to change the strength of the back tension.

    Abstract translation: 一种介质供给装置,用于将与转印单元所转印的被轧制介质的转印方向相反的反向张力施加到轧制介质上,所述介质供给装置包括驱动单元,所述驱动单元包括沿正向和反向旋转的驱动齿轮; 旋转传递机构,其包括单向离合器和扭矩限制器,并且在所述驱动单元和介质旋转轴之间传递旋转力,所述旋转力通过所述单向离合器和所述扭矩限制器可旋转地保持所述卷绕的介质; 以及控制单元,其将所述驱动单元控制为包括在向前方向上旋转的状态之一,并且在所述转印单元被所述转印介质转印时改变所述驱动单元的强度 背部紧张。

    Sheet feeding device and image forming apparatus
    7.
    发明授权
    Sheet feeding device and image forming apparatus 有权
    送纸装置和成像装置

    公开(公告)号:US08342511B2

    公开(公告)日:2013-01-01

    申请号:US13316799

    申请日:2011-12-12

    Inventor: Kakeru Takahashi

    CPC classification number: B65H3/5261 B65H2403/422 B65H2403/722 B65H2403/732

    Abstract: Disclosed is a sheet feeding device capable of prolonging the durability life span of the retard roller with a simple structure with ease and an image forming apparatus which includes the sheet feeding device. The sheet feeding device includes a feed roller 102 which rotates in a sheet feed direction, a retard roller 103 which is able to rotate in a reverse direction to the sheet feed direction which forms a separation nip portion. A torque limiter 202 which is interposed between a drive shaft 202b and a roller shaft 103b of the retard roller 103 to transfer a predetermined torque of the reverse direction to the retard roller 103; and a speed changing device 301 which is interposed between an output shaft 202a of the torque limiter 202 and the roller shaft 103b to change a magnitude of the predetermined torque transferred to the retard roller 103.

    Abstract translation: 公开了能够以简单的结构容易地延长延迟辊的耐久寿命的片材进给装置和包括片材进给装置的图像形成装置。 片材进给装置包括沿片材进给方向旋转的进给辊102,能够沿与形成分离压合部的片材进给方向相反的方向旋转的延迟辊103。 一个扭矩限制器202,它设置在驱动轴202b和延迟辊103的辊轴103b之间,以将相反方向的预定转矩传递给延迟辊103; 以及设置在转矩限制器202的输出轴202a和辊轴103b之间的变速装置301,以改变传递到延迟辊103的规定转矩的大小。

    SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS
    8.
    发明申请
    SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS 有权
    纸张进给装置和图像形成装置

    公开(公告)号:US20120153558A1

    公开(公告)日:2012-06-21

    申请号:US13316799

    申请日:2011-12-12

    Inventor: Kakeru Takahashi

    CPC classification number: B65H3/5261 B65H2403/422 B65H2403/722 B65H2403/732

    Abstract: Disclosed is a sheet feeding device capable of prolonging the durability life span of the retard roller with a simple structure with ease and an image forming apparatus which includes the sheet feeding device. The sheet feeding device includes a feed roller 102 which rotates in a sheet feed direction, a retard roller 103 which is able to rotate in a reverse direction to the sheet feed direction which forms a separation nip portion. A torque limiter 202 which is interposed between a drive shaft 202b and a roller shaft 103b of the retard roller 103 to transfer a predetermined torque of the reverse direction to the retard roller 103; and a speed changing device 301 which is interposed between an output shaft 202a of the torque limiter 202 and the roller shaft 103b to change a magnitude of the predetermined torque transferred to the retard roller 103.

    Abstract translation: 公开了能够以简单的结构容易地延长延迟辊的耐久寿命的片材进给装置和包括片材进给装置的图像形成装置。 片材进给装置包括沿片材进给方向旋转的进给辊102,能够沿与形成分离压合部的片材进给方向相反的方向旋转的延迟辊103。 一个扭矩限制器202,它设置在驱动轴202b和延迟辊103的辊轴103b之间,以将相反方向的预定转矩传递给延迟辊103; 以及设置在转矩限制器202的输出轴202a和辊轴103b之间的变速装置301,以改变传递到延迟辊103的规定转矩的大小。

    Sheet pick-up device of automatic document feeder
    9.
    发明授权
    Sheet pick-up device of automatic document feeder 失效
    自动送纸器的送纸装置

    公开(公告)号:US08162312B2

    公开(公告)日:2012-04-24

    申请号:US12885764

    申请日:2010-09-20

    Abstract: A sheet pick-up device of an automatic document feeder is provided. The sheet pick-up device includes a two-way clutch transmission mechanism, a sheet pick-up arm, a stopper and a linking assembly. When the two-way clutch transmission mechanism is operated to have the sheet pick-up arm move to a standby position, the stopper is moved with the linking assembly to be in a stopping position. Whereas, when the two-way clutch transmission mechanism is operated to have the sheet pick-up arm move to a sheet pick-up position, the stopper is in a non-stopping position. The sheet pick-up device has enhanced operating stability.

    Abstract translation: 提供了一种自动进纸器的纸张拾取装置。 片材拾取装置包括双向离合器传动机构,片材拾取臂,止动器和连接组件。 当双向离合器传动机构被操作以使片状拾取臂移动到待机位置时,止动器随着连接组件移动而处于停止位置。 而当双向离合器传动机构被操作以使拾纸臂移动到拾纸位置时,止动器处于非停止位置。 片材拾取装置具有增强的操作稳定性。

    IMAGE FORMING DEVICE HAVING IMPROVED SHEET FEEDING MECHANISM
    10.
    发明申请
    IMAGE FORMING DEVICE HAVING IMPROVED SHEET FEEDING MECHANISM 有权
    具有改进的纸张进给机构的图像形成装置

    公开(公告)号:US20110180985A1

    公开(公告)日:2011-07-28

    申请号:US12974150

    申请日:2010-12-21

    Inventor: Tomoya YAMAMOTO

    Abstract: An image forming device including a pick-up roller, a planetary gear mechanism having an input gear, a trigger and an output gear, a lift mechanism, a cam member, a change-over member, and a stop assembly. The change-over member includes a first arm movable between a first position engaging with the trigger for transmitting rotation of the input gear to the output gear and a second position disengaging from the trigger for shutting off the transmission of rotation from the input gear to the output gear. The second arm is contactable with the cam member for moving the first arm between the first and second positions in accordance with the movement of the pickup roller. The stop assembly includes a third arm movable between a third position engageable with the output gear and a fourth position disengaging from the output gear, and a fourth arm contactable with the cam member for moving the third arm between the third and fourth positions. The cam portion has a cam profile configured to position the first arm at the second position and to position the third arm at the third position when the pressure plate is at the stopping position at a stopping phase of rotation of the cam portion, and to position the first arm at the first position after the start of rotation of the cam portion, and then to position the third arm at the fourth position, and to again position the third arm at the third position with maintaining the first position of the first arm after the temporary rotation stop phase and the rotation re-start phase, and then to position the first arm at the second position.

    Abstract translation: 一种图像形成装置,包括拾取辊,具有输入齿轮的行星齿轮机构,触发器和输出齿轮,提升机构,凸轮构件,转换构件和止动组件。 所述转换构件包括第一臂,所述第一臂可在与所述触发器啮合的第一位置与所述输入齿轮之间移动,所述第一位置用于将所述输入齿轮的旋转传递到所述输出齿轮;以及第二位置,与所述触发器脱离接合,用于切断所述输入齿轮的转动 输出齿轮 第二臂可与凸轮构件接触,用于根据拾取辊的运动在第一和第二位置之间移动第一臂。 止动组件包括可在与输出齿轮啮合的第三位置和与输出齿轮分离的第四位置之间可移动的第三臂,以及与凸轮构件接触的第四臂,用于在第三和第四位置之间移动第三臂。 凸轮部分具有凸轮轮廓,凸轮轮廓构造成在第二位置处将第一臂定位并且当压板在凸轮部分的旋转停止阶段处于停止位置时将第三臂定位在第三位置,并且定位 第一臂在凸轮部分旋转开始之后的第一位置,然后将第三臂定位在第四位置,并且在保持第一臂的第一位置的同时保持第三臂的第三位置,再次将第三臂定位在第三位置 临时旋转停止阶段和旋转重新开始阶段,然后将第一臂定位在第二位置。

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