Fixing device and image forming apparatus

    公开(公告)号:US09891566B1

    公开(公告)日:2018-02-13

    申请号:US15459101

    申请日:2017-03-15

    IPC分类号: G03G15/20

    摘要: A fixing device according to an embodiment includes a first rotating body, a pressing unit, an urging member, a base body section, a screw shaft section, and a rotation regulating section. The pressing unit includes a belt, a second rotating body, and a supporting frame. The supporting frame supports the second rotating body. The urging member urges the pressing unit in a direction in which the second rotating body approaches the first rotating body. The base body section is rotatable around an axis. The shape of a cross section of the base body section orthogonal to an axial direction is a noncircular shape. The screw shaft section projects from the base body section and regulates a movement of the pressing unit in a direction in which the pressing unit approaches the first rotating body. The rotation regulating section comes into contact with the outer surface of the base body section to regulate the rotation of the base body section.

    FIXING PRESSURE ROLLER
    3.
    发明申请
    FIXING PRESSURE ROLLER 有权
    固定压力滚筒

    公开(公告)号:US20130287461A1

    公开(公告)日:2013-10-31

    申请号:US13869552

    申请日:2013-04-24

    IPC分类号: G03G15/20

    摘要: The invention provides a fixing pressure roller having an elastic layer formed of a porous material produced from an emulsion, the roller having improved durability. The fixing pressure roller has a core, a rubber layer which has a thickness of 1.0 mm or less and which is provided around the core, and an elastic layer which is formed of a porous elastomer produced from an emulsion composition and which is provided around the rubber layer, the emulsion composition having a continuous phase of a liquid rubber material which forms an elastomer through curing.

    摘要翻译: 本发明提供了一种定影压力辊,其具有由乳液制成的多孔材料形成的弹性层,该辊具有改善的耐久性。 定影压力辊具有芯,橡胶层,其厚度为1.0mm以下,并且设置在芯周围,弹性层由由乳液组合物制成的多孔弹性体形成, 橡胶层,该乳液组合物具有通过固化形成弹性体的液体橡胶材料的连续相。

    Fixing Device
    4.
    发明申请
    Fixing Device 有权
    固定装置

    公开(公告)号:US20130195527A1

    公开(公告)日:2013-08-01

    申请号:US13755720

    申请日:2013-01-31

    IPC分类号: G03G15/20

    摘要: A fixing device including: a flexible cylindrical member; a heater that is disposed inside the cylindrical member; a nip plate configured to be in contact with an inner peripheral surface of the cylindrical member and is configured to be heated by the heater; and a roller configured to pinch the cylindrical member between the roller and the nip plate, wherein, at least during fixing, the nip plate has a curved shape where a central portion thereof in an axial direction of the cylindrical member is more spaced from the roller than both end portions thereof in the axial direction, and wherein the roller is a concave roller where a diameter of a central portion thereof in the axial direction is smaller than diameters of both end portions thereof respectively.

    摘要翻译: 一种固定装置,包括:柔性圆柱形构件; 设置在所述筒状构件内的加热器; 构造成与所述筒状构件的内周面接触并被构造成被所述加热器加热的夹持板; 以及辊,其构造成在所述辊和所述夹板之间夹住所述圆柱形构件,其中,至少在固定期间,所述夹板具有弯曲形状,其中所述圆柱形构件的轴向方向上的中心部分与所述辊 并且其中,所述辊是其中心部分在轴向上的直径小于其两端部的直径的凹辊。

    IMAGE FORMING APPARATUS AND FIXING DEVICE
    5.
    发明申请

    公开(公告)号:US20180224781A1

    公开(公告)日:2018-08-09

    申请号:US15466062

    申请日:2017-03-22

    IPC分类号: G03G15/20

    CPC分类号: G03G15/206 G03G15/2089

    摘要: A first supporting member which rotatably supports a first rotator, a second supporting member which rotatably supports a second rotator, a bracket which is mounted in the second supporting member distant from the fastening portion of the first supporting member, an urging portion which is disposed between a fastening portion and the bracket, and urges the first rotator and the second rotator so as to be pulled to each other. The bracket is formed with a hooking portion on one end side of the main body portion and a hole where an inserting member can be inserted in an oblique direction from the other end side of the main body portion toward the hooking portion, the second supporting member includes a positioning member which supports the hooking portion of the bracket and regulates movement of the other end side of the bracket on which the urging portion is mounted.

    IMAGE FORMING APPARATUS AND IMAGE FORMING SYSTEM

    公开(公告)号:US20180081311A1

    公开(公告)日:2018-03-22

    申请号:US15710518

    申请日:2017-09-20

    发明人: Hajime Kawakami

    IPC分类号: G03G15/20

    摘要: An image forming apparatus includes: a toner-image fixer that fixes an unfixed toner image on a sheet by conveying the sheet while heating and pressing the sheet at a fixing nip; a pressing force changer that changes a pressing force against the sheet at the fixing nip; and a hardware processor that controls the toner-image fixer and the pressing force changer, in which when a conveying speed of the sheet is changed by controlling the toner-image fixer, the hardware processor causes the conveying speed to change in a state in which the pressing force is decreased by controlling the pressing force changer.

    Fixing device having fixing nip formed by elastic roller and a back-up unit with cylindrical film and film guide including a plurality of ribs extending circumferentially along the inner periphery of the film
    7.
    发明授权
    Fixing device having fixing nip formed by elastic roller and a back-up unit with cylindrical film and film guide including a plurality of ribs extending circumferentially along the inner periphery of the film 有权
    具有由弹性辊形成的定影辊隙的定影装置和具有圆柱形薄膜和薄膜导向器的支撑单元,所述支撑单元具有沿着薄膜的内周沿周向延伸的多个肋

    公开(公告)号:US09423732B2

    公开(公告)日:2016-08-23

    申请号:US14816437

    申请日:2015-08-03

    IPC分类号: G03G15/20

    摘要: An image fixing device includes an elastic roller; a back-up unit forming a fixing nip with the roller therebetween, the back-up unit including a cylindrical film, a film guide, extending inside the film, for guiding the film, and an end portion guiding member including a guiding portion for guiding an inner surface of an end portion of the film. The film guide includes plural ribs contacting the film and arranged in a generatrix direction at positions upstream of the fixing nip with respect to a feeding direction of a sheet. The ribs have free end portions retracted more toward a downstream side with respect to the feeding direction of the recording material than the guiding portion of the end portion guiding member. An inside rib has a free end portion which is retracted more toward the downstream side than free end portions of the opposite end ribs.

    摘要翻译: 图像定影装置包括弹性辊; 形成与辊之间的定影辊隙的支撑单元,所述支撑单元包括圆柱形膜,在所述膜内延伸以引导所述膜的膜导向件,以及端部引导构件,所述端部引导构件包括用于引导的引导部 膜的端部的内表面。 薄膜导向器包括与薄膜接触的多个肋,并相对于片材的馈送方向在母线方向上在定影辊隙的上游位置布置。 所述肋具有比所述端部引导构件的引导部相对于所述记录材料的输送方向更靠近下游侧缩回的自由端部。 内侧肋具有比相对端肋的自由端部更靠近下游侧缩回的自由端部。

    Fixing pressure roller
    8.
    发明授权
    Fixing pressure roller 有权
    固定压力辊

    公开(公告)号:US09091982B2

    公开(公告)日:2015-07-28

    申请号:US13869552

    申请日:2013-04-24

    IPC分类号: G03G15/20

    摘要: The invention provides a fixing pressure roller having an elastic layer formed of a porous material produced from an emulsion, the roller having improved durability. The fixing pressure roller has a core, a rubber layer which has a thickness of 1.0 mm or less and which is provided around the core, and an elastic layer which is formed of a porous elastomer produced from an emulsion composition and which is provided around the rubber layer, the emulsion composition having a continuous phase of a liquid rubber material which forms an elastomer through curing.

    摘要翻译: 本发明提供了一种定影压力辊,其具有由乳液制成的多孔材料形成的弹性层,该辊具有改善的耐久性。 定影压力辊具有芯,橡胶层,其厚度为1.0mm以下,并且设置在芯周围,弹性层由由乳液组合物制成的多孔弹性体形成, 橡胶层,该乳液组合物具有通过固化形成弹性体的液体橡胶材料的连续相。

    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:US20140099146A1

    公开(公告)日:2014-04-10

    申请号:US14017383

    申请日:2013-09-04

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2089 G03G15/206

    摘要: A fixing device includes a fixing rotary body and a pressing rotary body disposed opposite the fixing rotary body. A pivotable pressurization member contacts and presses the pressing rotary body against the fixing rotary body. A pressurization pivot is provided on the pressurization member. A depressurization member, pivotable about the pressurization pivot, causes the pressurization member to isolate the pressing rotary body from the fixing rotary body. A depressurization pivot is provided on the depressurization member. A lock is pivotable about the depressurization pivot and engageable with the pressurization pivot. A biasing member, anchored to the lock, exerts a resilient bias that allows the lock to cause the pressurization member to press the pressing rotary body against the fixing rotary body. A detent is situated in a pivotal trajectory of the lock to restrict pivot of the lock by contacting the lock.

    摘要翻译: 定影装置包括定影旋转体和与定影旋转体相对设置的按压旋转体。 可枢转的加压构件接触压紧旋转体抵靠定影旋转体。 在加压构件上设有加压枢轴。 减压构件可围绕增压枢轴转动,使得加压构件将压制旋转体与固定旋转体隔离。 在减压部件上设有减压枢轴。 锁可围绕减压枢轴枢转并与加压枢轴接合。 锚定在锁上的偏置构件施加弹性偏压,该偏压允许锁定使加压构件将压紧旋转体按压在定影旋转体上。 锁定件位于锁的枢转轨迹中,以通过接触锁来限制锁的枢转。