公开(公告)号：JP2013179822A

公开(公告)日：2013-09-09

申请号：JP2012277471

申请日：2012-12-19

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： KIGUCHI HIROYUKI ,  SEKI TAKEO ,  ISHIZUKA NATSUKO ,  MURATA TAKUYA

IPC分类号： H02P29/00

CPC分类号： H02P29/024 ,  G05B2219/34013 ,  H02P3/00 ,  H02P29/0241

摘要： PROBLEM TO BE SOLVED: To prevent damage of a motor driving system due to an abnormality.SOLUTION: A motor controlling apparatus comprises: a detection part for detecting motor rotation of a controlled object and outputting a rotation detection value related to the rotation; a drive control part for drive control against the motor based on the rotation detection value so that the motor rotates with a control target value increasing along with elapsed time; and an abnormality detection part for abnormality detection processing based on the rotation detection value and a prescribed threshold so that abnormality is detected in the driving control. The drive control part executes control to stop the rotation of the motor when an abnormality is detected.

摘要翻译： 要解决的问题：为了防止由于异常而导致的电动机驱动系统的损坏。解决方案：电动机控制装置包括：检测部件，用于检测受控对象的电动机旋转并输出与旋转相关的旋转检测值; 驱动控制部，其基于所述旋转检测值对所述电动机进行驱动控制，使得所述电动机随着控制目标值随着经过时间的增加而旋转; 以及异常检测部，其基于所述旋转检测值和规定的阈值进行异常检测处理，从而在所述驱动控制中检测出异常。 当检测到异常时，驱动控制部执行控制以停止电动机的旋转。

公开(公告)号：JP2013113971A

公开(公告)日：2013-06-10

申请号：JP2011258861

申请日：2011-11-28

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： TOMITA KENJI ,  YASUDA JUN ,  MURATA TAKUYA

IPC分类号： G03G15/00 ,  F16D11/00 ,  F16D27/118

摘要： PROBLEM TO BE SOLVED: To provide a planetary gear clutch mechanism capable of reducing impact sound and free vibrations when performing a switching operation of drive connection and cutoff more than before.SOLUTION: The planetary gear clutch mechanism includes switching means 130 for switching to a drive connection state of engaging a pawl part 125 of a regulation arm 121 provided on a rotation regulation part 120 and a projection part 113 of a ratchet part 112 coaxially and integrally provided with a sun gear, and a cutoff state of separating them. Also, an end of a plunger 133 of a solenoid 131 provided in the switching means 130 is connected by an engaging pin 134. Then, a compression spring 136 is provided on an outer periphery of the plunger 133 between a solenoid case 132 for holding the solenoid 131 and an end ring 135 provided on the plunger 133. Then, while the compression spring 136 is deformed in a nonlinear characteristic area where the load-deflection relation is within an elastic range, the compression spring 136 is compressed and brought into interline contact and regulates turning of the regulation arm 121.

摘要翻译： 要解决的问题：提供一种行星齿轮离合器机构，当执行驱动连接的切换操作并且比以前更多时，能够减少冲击声和自由振动。 解决方案：行星齿轮离合器机构包括切换装置130，用于切换到同轴地设置在旋转调节部分120上的调节臂121的棘爪部分125和棘轮部分112的突出部分113的驱动连接状态 并且一体地设置有太阳齿轮和分离它们的切断状态。 此外，设置在开关装置130中的螺线管131的柱塞133的端部通过接合销134连接。然后，压缩弹簧136设置在螺塞形外壳132的外周上，用于保持 螺线管131和设置在柱塞133上的端环135.然后，当压缩弹簧136在负载 - 偏转关系在弹性范围内的非线性特征区域变形时，压缩弹簧136被压缩并进入线间接触 并规范了监管机构121的转变。版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2013109378A

公开(公告)日：2013-06-06

申请号：JP2013050259

申请日：2013-03-13

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： UCHIDA TOSHIYUKI ,  EBARA YUZURU ,  KOBAYASHI KAZUHIKO ,  MIURA YOHEI ,  UEHARA TAKUYA ,  MURATA TAKUYA

IPC分类号： G03G15/01 ,  G03G21/00 ,  G03G21/14

摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which can reduce occurrence of shocking jitter when monochromatic image printing is carried out in a tandem type color image forming apparatus.SOLUTION: In a tandem type image forming apparatus, when forming a monochromatic image, only a photoreceptor 1a for black is abutted on an intermediate transfer belt 3, and when forming a color image, all photoreceptors 1a-1d including the photoreceptor 1a for the black are abutted on the intermediate transfer belt 3. A contact member 15 for selectively applying load to the intermediate transfer belt 3 is provided on an upstream side in a rotating direction of the intermediate transfer belt 3 from a contact part between the photoreceptor 1a for the black and the intermediate transfer belt 3, and when forming the monochromatic image, the contact member 15 applies the load to the intermediate transfer belt 3.

摘要翻译： 要解决的问题：提供一种图像形成装置，当在串联型彩色图像形成装置中执行单色图像打印时，可以减少震动抖动的发生。 解决方案：在串联型图像形成装置中，当形成单色图像时，只有用于黑色的感光体1a邻接在中间转印带3上，并且当形成彩色图像时，包括感光体1a的所有感光体1a-1d 因为黑色物体抵靠在中间转印带3上。在中间转印带3的旋转方向的上游侧，从感光体1a的接触部分设置用于选择性地向中间转印带3施加载荷的接触部件15 对于黑色和中间转印带3，并且当形成单色图像时，接触构件15将负载施加到中间转印带3。版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2013099056A

公开(公告)日：2013-05-20

申请号：JP2011238183

申请日：2011-10-31

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： YOSHIMIZU HIDEKI ,  MURATA TAKUYA

IPC分类号： H02P6/16 ,  H02K29/08 ,  H02K29/10 ,  H02P6/24

摘要： PROBLEM TO BE SOLVED: To freely adjust the speed of a driven body by using a DC brushless motor as a drive source, as well as restrain the motor rotation from becoming instable due to inclusion of noise into a rotation sensing signal and also restrain the speed of a first transport roller 16a from being destabilized by a load fluctuation.SOLUTION: In order for the excitation coil switchover timing of a transport motor 210 consisting of a DC brushless motor to be grasped by a driver circuit 212, separately from a hall element 217 to detect a rotation amount of the transport motor 210, a motor encoder 211 to detect the rotation amount with higher accuracy than the hall element 217 is incorporated in the transport motor 210, and also the driver circuit 212 is incorporated in the transport motor 210. In a motor control circuit 200, a speed adjustment process is executed in such a way that the revolution speed of the transport motor 210 is adjusted by adjusting the amount of an excitation voltage supplied from the driver circuit 212 to the coil is adjusted on the basis of the result of detection by the motor encoder 211.

摘要翻译： 要解决的问题：通过使用DC无刷电动机作为驱动源来自由地调节从动体的速度，并且由于将噪声包含在旋转感测信号中而抑制电动机旋转变得不稳定，并且还 抑制第一输送辊16a的速度由于载荷波动而不稳定。 解决方案：为了使由直流无刷电动机组成的输送电动机210的励磁线圈切换定时由驱动电路212与霍尔元件217分离以检测输送电动机210的旋转量， 用于检测高于霍尔元件217的精度的旋转量的电动机编码器211被结合在传送电动机210中，并且驱动电路212也被结合在传送电动机210中。在电动机控制电路200中，调速过程 以通过根据电动机编码器211的检测结果来调整从驱动电路212向线圈供给的激励电压的量来调整输送电动机210的转速的方式进行。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2013099055A

公开(公告)日：2013-05-20

申请号：JP2011238177

申请日：2011-10-31

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： YOSHIMIZU HIDEKI ,  MURATA TAKUYA

IPC分类号： H02P6/08 ,  B41J11/42 ,  G03G21/00

摘要： PROBLEM TO BE SOLVED: To restrain motor rotation from becoming instable due to inclusion of noise into a rotation sensing signal fed into a driver circuit, as well as restrain the life of a gear from being reduced by collision of gear teeth at motor startup, thereby making it possible for a first transport roller 16a to be quickly accelerated by a transport motor.SOLUTION: A motor encoder 211 to detect the rotation amount of a transport motor 210 consisting of a DC brushless motor and a driver circuit 212 are incorporated in the transport motor 210. In a motor control circuit 200, an acceleration change process for driving the transport motor 210 is executed in such a way that at motor startup, the transport motor 210 is driven so that its revolution speed will be accelerated with a first acceleration characteristic, and after the arrival of timing grasped on the basis of the detection result of the motor encoder 211 and the first acceleration characteristic, the revolution speed of the transport motor 210 is accelerated with a second acceleration characteristic which excels in acceleration ability than the first acceleration characteristic.

摘要翻译： 要解决的问题：为了抑制电机旋转由于将噪声包含在馈送到驱动电路中的旋转感测信号中而变得不稳定，以及通过电动机齿轮齿的碰撞来限制齿轮的寿命 从而能够通过传送电动机快速地加速第一传送辊16a。 解决方案：用于检测由DC无刷电动机和驱动电路212组成的运送电动机210的旋转量的电动机编码器211被并入传送电动机210.在电动机控制电路200中， 执行驱动传送电动机210的方式是在电动机启动时驱动运送电动机210，以使其转速以第一加速度特性加速，并且在基于检测结果来掌握定时到达之后 电动机编码器211和第一加速特性，运送电动机210的转速以比第一加速特性优异的加速能力的第二加速度特性加速。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2013094037A

公开(公告)日：2013-05-16

申请号：JP2011236267

申请日：2011-10-27

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： SAKAMOTO SHOGO ,  MURATA TAKUYA ,  SEKI TAKEO ,  KIGUCHI HIROYUKI

IPC分类号： H02P6/24 ,  G03G21/00 ,  H02P6/08

摘要： PROBLEM TO BE SOLVED: To provide a driving device capable of improving image quality and an image forming apparatus provided with the same.SOLUTION: A driving device includes a position/speed tracking controller 130, and the position/speed tracking controller 130 comprises: a PID controller 140; a subtractor 131; a PWM circuit 133; a gain setting part 134; and a gain setting instruction part 135. The gain setting instruction part 135 causes the gain setting part 134 to set gain at holding after the time when a DC motor 101 is put into a hold state, a positional deviation being less than a predetermined threshold, and after a lapse of a given time, and causes the gain setting part 134 to set gain at driving if through-up control is started.

摘要翻译： 要解决的问题：提供能够提高图像质量的驱动装置和具有该驱动装置的图像形成装置。 解决方案：驱动装置包括位置/速度跟踪控制器130，位置/速度跟踪控制器130包括：PID控制器140; 减法器131; PWM电路133; 增益设定部134; 增益设定指示部135.增益设定指示部135使得增益设定部134在直流电动机101进入保持状态，位置偏差小于预定阈值的时刻之后，设定保持时的增益， 并且在经过了给定时间之后，并且如果开启控制，则使得增益设定部分134设定驱动时的增益。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2010072520A

公开(公告)日：2010-04-02

申请号：JP2008242266

申请日：2008-09-22

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： MURATA TAKUYA ,  EBARA YUZURU ,  MIURA YOHEI

IPC分类号： G03G15/00

摘要： PROBLEM TO BE SOLVED: To reduce failures such as disconnection, due to contact of a harness in an image forming apparatus, and also to constitute the image forming apparatus so that firing of a resin gear or the like may hardly occur.
SOLUTION: Charging harnesses 142 and 144 as covered conductors are each arranged above a charging bias delivery part 143 as a contact point with a charging roller, and also, above a developing bias delivery part 145 as a contact point between the developing harness 144 and a developing roller. A photoreceptor driving gear 121 that transmits the drive coaxially with the photoreceptor drum, and a developing driving gear 123 that transmits the drive to the developing roller are made to function as drive delivery members. Other drive transmission members 124 to 130 are arranged on the opposite side of the charging harnesses 142 and 144, with respect to the photoreceptor driving gear 121 and the like. Consequently, the failures, such as disconnection, due to the contact of the harness are avoidable. A harness guide 141 holds the charging harnesses 142 and 144, and functions as a partitioning member for avoiding an interference between the harness and the drive transmission means.
COPYRIGHT: (C)2010,JPO&INPIT

摘要翻译： 要解决的问题：为了减少由于图像形成装置中的线束的接触而引起的断开等故障，并且也构成图像形成装置，使得难以发生树脂齿轮等的烧制。 解决方案：作为被覆导体的充电线束142和144分别布置在作为与充电辊的接触点的充电偏压输送部分143上方，并且还设置在作为显影线束之间的接触点的显影偏压输送部分145之上 144和显影辊。 使与感光鼓同轴地传递驱动的感光体驱动齿轮121和将驱动传递到显影辊的显影驱动齿轮123用作驱动传递部件。 其他驱动传递部件124〜130相对于感光体驱动齿轮121等配置在充电用带束142,144的相对侧。 因此，由于线束的接触而导致的故障，例如断线是可以避免的。 线束引导件141保持充电线束142和144，并且用作分隔构件，用于避免线束和驱动传动装置之间的干扰。 （C）2010，JPO＆INPIT

公开(公告)号：JP2009223177A

公开(公告)日：2009-10-01

申请号：JP2008069662

申请日：2008-03-18

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： UEDA YUICHIRO ,  KOBAYASHI KAZUHIKO ,  UEHARA TAKUYA ,  MURATA TAKUYA ,  MATSUDA YUJI ,  KAMEKURA TAKAHIRO ,  ANDO TOSHIYUKI ,  MATSUDA HIROMICHI ,  OKUBO HIROKI

IPC分类号： G03G15/16

CPC分类号： G03G15/161 ,  G03G15/0131 ,  G03G15/1615 ,  G03G2215/0129 ,  G03G2215/0158

摘要： PROBLEM TO BE SOLVED: To provide a belt drive controller capable of preventing feedback control from being deteriorated by utilizing alternative data if detected data obviously include an abnormal value. SOLUTION: In this belt drive controller, data sampling per round of a transfer belt is performed (S102, S103) when starting to drive a transfer driving belt M (S101). Upon completion of the data sampling per round of the belt, this controller computes amplitude and phase in a phase-amplitude computing part (S104) and checks whether the computed values of amplitude and phase are normal or not (S105). If these values are not normal, the computed values of amplitude and phase are replaced with alternative values (S106), and if these values are normal, these computed values are stored in a nonvolatile memory (S107) as they are. Next, this controller reads corrected values from a correction table in the nonvolatile memory in a correction table computing part and generates pulse signals to be given to the transfer driving motor M in a pulse generating part (S108). COPYRIGHT: (C)2010,JPO&INPIT

摘要翻译： 要解决的问题：提供一种带驱动控制器，其能够通过利用备选数据来防止反馈控制恶化，如果检测到的数据显然包括异常值。

解决方案：在该皮带驱动控制器中，当开始驱动传送驱动带M时，执行每一圈传送带的数据采样（S102，S103）（S101）。 在每轮的数据采样完成后，该控制器计算相位幅度计算部分中的幅度和相位（S104），并检查计算的幅度和相位值是否正常（S105）。 如果这些值不正常，则将计算出的振幅和相位的值替换为替代值（S106），如果这些值是正常的，则这些计算值原样存储在非易失性存储器（S107）中。 接下来，该控制器从校正表计算部分中的非易失性存储器中的校正表读出校正值，并在脉冲发生部分生成给予传送驱动电动机M的脉冲信号（S108）。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009037198A

公开(公告)日：2009-02-19

申请号：JP2008055373

申请日：2008-03-05

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： UEHARA TAKUYA ,  EBARA YUZURU ,  MIURA YOHEI ,  MURATA TAKUYA

IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G21/00 ,  G03G21/16

摘要： PROBLEM TO BE SOLVED: To provide a rotary drive device with improved assembling property, good maintenance property, enhanced sensor position precision and improved load resistance against radial load to an output shaft. SOLUTION: A rotary drive device includes a motor 200 including a rotary shaft 203, an outer gear 101 fixed to the housing 202 of the motor 200, a multistage planetary gear mechanism 100 in which the outer gear 101 is used as a common outer gear and which decelerates the rotation output of the motor 200 at a desired reduction ratio, an output shaft 117 for externally outputting the rotational output of the motor 200 which is decelerated at the planetary gear mechanism 100 and a rotation position detection means 300 for detecting the rotation position of the output shaft 117. The motor 200, the planetary gear mechanism 100, and the rotation position detection means 300 are combined into a single integrated unit and aligned in the axial direction of the rotary shaft of the motor 200. COPYRIGHT: (C)2009,JPO&INPIT

摘要翻译： 要解决的问题：提供一种具有改进的组装性能，良好的维护性能，增强的传感器位置精度和改善对输出轴的径向载荷的负载阻力的旋转驱动装置。 解决方案：旋转驱动装置包括电动机200，其包括旋转轴203，固定到电动机200的壳体202的外齿轮101，多级行星齿轮机构100，其中外齿轮101用作公共 外齿轮，以期望的减速比使马达200的旋转输出减速;外部输出在行星齿轮机构100减速的马达200的旋转输出的输出轴117和用于检测的旋转位置检测单元300 马达200，行星齿轮机构100和旋转位置检测装置300组合成单个集成单元并沿电动机200的旋转轴的轴向对准。

版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008233625A

公开(公告)日：2008-10-02

申请号：JP2007074552

申请日：2007-03-22

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： MURATA TAKUYA ,  TAKEMOTO HIDEYUKI

IPC分类号： G03G15/00 ,  G03G21/00

摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which can efficiently transmit a driving force to respective devices disposed near a photoreceptor drum while achieving space-saving, and also, prevent banding and positional deviation, thereby, obtain a high quality image. SOLUTION: A holding member 114 is provided with a positioning part 115 for positioning a photoreceptor drum unit 103 and an attitude deciding part 116 for deciding the attitude of the drum unit 103. A positioning part 105 and an attitude deciding part 106 located on the drum unit side are fitted to the positioning part 115 and the attitude deciding part 116, then, the position and attitude of the drum unit 103 are simultaneously decided. Thereby, the position and attitude of a developing sleeve included in the drum unit 103 are also decided. COPYRIGHT: (C)2009,JPO&INPIT

摘要翻译： 要解决的问题：提供一种图像形成装置，其可以有效地将驱动力传递到设置在感光鼓附近的各个装置，同时实现节省空间，并且还防止条带和位置偏离，从而获得高质量 图片。

解决方案：保持构件114设置有用于定位感光鼓单元103的定位部115和用于决定鼓单元103的姿态的姿态决定部116.定位部105和姿势判定部106位于 在鼓单元侧安装在定位部115和姿势判定部116上，同时决定鼓单元103的位置和姿势。 因此，也决定了包括在鼓单元103中的显影套筒的位置和姿态。 版权所有（C）2009，JPO＆INPIT