Rotating electrical machine
    1.
    发明授权

    公开(公告)号:US09647505B2

    公开(公告)日:2017-05-09

    申请号:US14426894

    申请日:2012-12-19

    申请人: Naoki Yamamoto

    发明人: Naoki Yamamoto

    摘要: A rotating electrical machine is configured such that, in a rotor coil, ventilation passages are formed in two lines arranged in a width direction of the rotor coil, and formed in the same shape at a plurality of positions spaced from each other in a longitudinal direction, 0.3≦W1/W2≦0.7 . . . (Expression 1) is satisfied, where (W1) is a width dimension of the ventilation passage in the longitudinal direction and (W2) is a width dimension from one end of the ventilation passage to one end of another ventilation passage adjacent thereto, and 0.025≦W4/W3≦0.08 . . . (Expression 2) is satisfied, where (W3) is a width dimension of the rotor coil and (W4) is a width dimension of the ventilation passage.

    Fixing device and image forming apparatus with a mechanism to extend life of a fixing belt
    5.
    发明授权
    Fixing device and image forming apparatus with a mechanism to extend life of a fixing belt 有权
    固定装置和成像装置具有延长定影带寿命的机构

    公开(公告)号:US08639170B2

    公开(公告)日:2014-01-28

    申请号:US13112325

    申请日:2011-05-20

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2053 G03G2215/2025

    摘要: A fixing device for thermally fixing an unfixed image formed on a recording sheet by passing the recording sheet through a fixing nip. The fixing device has: a heat-generating endless belt having, on a circumferential surface thereof, a sheet passing area through which the recording sheet passes; a first pressure member disposed inside a running path of the endless belt; and a second pressure member disposed to press the endless belt against the first pressure member from outside the running path to form the fixing nip. The endless belt includes: a resistive heat layer that generates heat upon receiving electric current; and a pair of electrode layers that receive electric current. The electrode layers flank the sheet passing area. The resistive heat layer is in contact with the electrode layers at a different one of end faces opposing each other in a width direction of the resistive heat layer.

    摘要翻译: 一种定影装置,用于通过使记录纸通过定影辊隙来热定影在记录纸上形成的未定影图像。 定影装置具有:发热环形带,其周面上具有记录纸通过的纸张通过区域; 设置在所述环形带的行进路径内的第一压力构件; 以及第二压力构件,其设置成从行进路径外部将环形带压靠第一压力构件以形成定影辊隙。 环形带包括:在接收电流时产生热量的电阻热层; 以及一对接收电流的电极层。 电极层位于片材通过区域的两侧。 电阻加热层在电阻热层的宽度方向上彼此相对的不同的一个端面处与电极层接触。

    Fixing device and image forming apparatus
    7.
    发明授权
    Fixing device and image forming apparatus 有权
    固定装置和成像装置

    公开(公告)号:US08346148B2

    公开(公告)日:2013-01-01

    申请号:US13111093

    申请日:2011-05-19

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2053 G03G2215/2025

    摘要: A fixing device thermally fixes an unfixed image on a recording sheet by passing the recording sheet through a fixing nip. The fixing device has: a heat-generating endless belt; a first pressure member inside a running path of the endless belt; a second pressure member pressing the endless belt against the first pressure member from outside the running path to form the fixing nip, and a pair of power feeders. The endless belt includes: a circumferential resistive heat layer that generates heat upon receiving electric current; and a first electrode and a second electrode flanking a sheet passing area of the circumferential surface of the endless belt. Each electrode is composed of a pair of electrode layers, one on the inner and another on the outer circumferential surface of the resistive heat layer. Each power feeder is in contact with both the electrode layers of a different electrode.

    摘要翻译: 定影装置通过使记录片材通过定影辊隙将未定影图像热定影在记录片材上。 定影装置具有:发热环带; 在环形带的行进路径内的第一压力构件; 第二压力构件,从行进路径的外部将环形带压靠第一压力构件,以形成定影辊隙;以及一对供电装置。 环形带包括:在接收电流时产生热的圆周电阻热层; 以及在环形带的圆周表面的片材通过区域的侧面的第一电极和第二电极。 每个电极由一对电极层构成,一对电极层位于电阻加热层的内部,另外在电阻加热层的外周面上。 每个馈电器与不同电极的两个电极层接触。

    Fixing device and image formation apparatus
    8.
    发明授权
    Fixing device and image formation apparatus 有权
    固定装置和图像形成装置

    公开(公告)号:US08265538B2

    公开(公告)日:2012-09-11

    申请号:US12481626

    申请日:2009-06-10

    IPC分类号: G03G15/20

    CPC分类号: G03G15/206 G03G2215/2009

    摘要: Fixing belt is brought into pressure-contact with the surface of fixing roller such that fixing belt rotates according to rotation of fixing roller, thereby forming, between fixing belt and fixing roller, fixing nip portion through which recording sheets pass. A pressing area of an opposing surface of pressing member contacting the surface of fixing roller via fixing belt is smaller in each end portion of the opposing surface in the axis direction of fixing roller than in a central portion of the opposing surface in the axis direction of fixing roller. This makes speed of conveying recording sheets faster in each edge portion in the width direction perpendicular to a recording sheet conveyance direction than in a central portion in the width direction. Thus, creases of recording sheets can be prevented while a recording sheet passes through fixing nip portion between fixing roller and fixing belt mutually brought into pressure-contact.

    摘要翻译: 定影带与定影辊的表面压力接触,使得定影带根据定影辊的旋转而旋转,从而在定影带和定影辊之间形成定影夹持部分,通过该定影辊隙部分。 在定影辊的轴向上的相对表面的每个端部的相对表面的相对表面的相对表面的按压区域在定影辊的轴线方向上的相对表面的中心部分比在定影辊的轴向方向上的中心部分小 定影辊。 这使得在垂直于记录纸张传送方向的宽度方向上的每个边缘部分中传送记录纸张的速度比宽度方向上的中心部分快。 因此,当记录纸通过定影辊和相互压力接触的定影带之间的定影辊隙部分时,可以防止记录纸的折痕。

    Presser member, fixing device and image forming apparatus
    9.
    发明授权
    Presser member, fixing device and image forming apparatus 有权
    压紧构件,固定装置和图像形成装置

    公开(公告)号:US08200138B2

    公开(公告)日:2012-06-12

    申请号:US12709583

    申请日:2010-02-22

    IPC分类号: G03G15/20

    CPC分类号: G03G15/206

    摘要: A first pad has a first nip forming surface which extends in a direction X. An angle formed between an end portion of the first nip forming surface and an XZ plane is smaller than an angle formed between a central portion of the first nip forming surface and the XZ plane, where the XZ plane is formed on a downstream side of the first nip forming surface. Thereby, a fixing device is provided which suppresses generation of wrinkles on a recording material when the fixing device fixes toner on the recording material and conveys it.

    摘要翻译: 第一焊盘具有沿X方向延伸的第一压区形成表面。形成在第一辊隙形成表面的端部与XZ平面之间的角度小于在第一辊隙形成表面的中心部分和 XZ平面,其中XZ平面形成在第一辊隙形成表面的下游侧。 因此,提供了一种定影装置,当定影装置将调色剂固定在记录材料上并传送时,可以抑制记录材料上的皱纹的产生。

    FIXING DEVICE AND IMAGE FORMING APPARATUS
    10.
    发明申请
    FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
    固定装置和图像形成装置

    公开(公告)号:US20110293340A1

    公开(公告)日:2011-12-01

    申请号:US13112346

    申请日:2011-05-20

    IPC分类号: G03G15/20

    摘要: A fixing device for thermally fixing an unfixed image onto a recording sheet by causing the sheet to pass through a fixing nip. The fixing device includes: heat belt formed in an endless shape and provided with a resistance heat layer; first pressure member provided inside a running path of the heat belt; and second pressure member pressing the first pressure member from over the running path to form the fixing nip. At least one of the first and second pressure members is rotating body. The heat belt has a pressure-receiving area and two non-pressure areas. The pressure-receiving area receives pressures from both the first and second pressure members. The non-pressure areas have been arranged at outside of the pressure-receiving area in an axis direction of the rotating body. Two ring-like electrodes have been formed on circumferential surfaces of the non-pressure areas and are used to supply power to the resistance heat layer.

    摘要翻译: 一种用于通过使片材通过定影辊隙将未定影图像热定影到记录片材上的定影装置。 定影装置包括:加热带,其形成为环形,并设有电阻加热层; 第一压力构件设置在加热带的行进路径内; 以及第二压力部件,从所述行进路径的上方按压所述第一压力部件,以形成所述定影辊隙。 第一和第二压力构件中的至少一个是旋转体。 加热带具有受压面积和两个非压力区域。 压力接收区域接收来自第一和第二压力构件的压力。 非压力区域设置在受压区域的旋转体的轴线方向的外侧。 在非压力区域的圆周表面上形成有两个环形电极,用于向电阻加热层供电。