Document feeder and cover for an image forming apparatus
    1.
    发明授权
    Document feeder and cover for an image forming apparatus 失效
    用于图像形成装置的送纸器和盖子

    公开(公告)号:US5915691A

    公开(公告)日:1999-06-29

    申请号:US919362

    申请日:1997-08-28

    IPC分类号: G03G15/00 B65H7/02

    摘要: A document feeder includes: a document detecting device arranged on the top of the copier body, for detecting a document inserted from the outside; a feed roller arranged adjacent to the document detecting device, on the top of the copier body, for feeding an inserted document into a space between the original table and the original cover, in response to the detection of a document by the document detecting device; and an original cover lifting device arranged on the top of the copier body, for lifting the original cover to create a gap between the original table and the original cover, in response to the detection of a document by the document detecting device. Alternatively, the feed roller further has a rotary cam on its shaft, so that the cam rotates to lift the original cover up as the feed roller rotates in the document feeding direction. Then, after the document is fed in place, the feed roller is reversely rotated in a constant time, whereby the document cover is sunk to press the document onto the original table.

    摘要翻译: 文件馈送器包括:文档检测装置,布置在复印机主体的顶部,用于检测从外部插入的文档; 响应于由文件检测装置检测到的文件,在所述复印机主体的顶部上布置与所述文件检测装置相邻布置的馈送辊,用于将插入的文档馈送到所述原件台和所述原件盖之间的空间中; 以及布置在复印机主体的顶部上的原始盖提升装置,用于提起原始盖以在原稿台和原稿盖之间产生间隙,以响应文件检测装置的文件的检测。 或者,进给辊还在其轴上具有旋转凸轮,使得凸轮旋转以随着进给辊在原稿输送方向上旋转而将原始盖向上提起。 然后,在原稿送入到位之后,进给辊在恒定时间内反向旋转,由此文件盖被下沉以将文件按压到原始台上。

    Paper feeder
    2.
    发明授权
    Paper feeder 失效
    送纸器

    公开(公告)号:US5393044A

    公开(公告)日:1995-02-28

    申请号:US158409

    申请日:1993-11-29

    IPC分类号: B65H3/06 B65H5/00

    CPC分类号: B65H3/0669

    摘要: A paper feeder for use in copiers has a feed roller, a conveying roller and a registration roller. The apparatus further includes a feeding-conveying drive section for driving the conveying roller in synchronization with the rotation of the feed roller, and a conveying-registration drive section for driving the conveying roller in synchronization with the rotation of the registration roller. By this structure, the peripheral velocity of the rollers when the feed roller and conveying roller rotate can be set up higher than the peripheral velocity of the rollers when the registration roller and conveying roller rotate. An alternative construction of the apparatus includes a feeding-conveying drive section in which the conveying roller is driven through the conveying roller gear and conveying roller clutch and a conveying-registration drive section in which the conveying roller is driven through a pulley disposed on the rotary shaft of the registration roller, a timing belt and a clutch-equipped pulley disposed on the rotary shaft of the conveying roller. In this construction, the conveying roller is made to be able to be driven either by the feeding-conveying drive section or by the conveying-registration drive section.

    摘要翻译: 用于复印机的供纸器具有进给辊,输送辊和定位辊。 该装置还包括与进给辊的旋转同步地驱动输送辊的进给传送驱动部分,以及用于与定位辊的旋转同步地驱动输送辊的输送对位驱动部。 通过这种结构,当定位辊和输送辊旋转时,当进给辊和输送辊旋转时,辊的圆周速度可以设置得高于辊的圆周速度。 该设备的另一种结构包括一个送料传送驱动部分,其中输送辊被驱动通过输送辊齿轮和输送辊离合器;以及一个输送对位驱动部分,其中输送辊通过设置在转动体上的皮带轮 定位辊的轴,配置在输送辊的旋转轴上的同步带和配备有离合器的滑轮。 在这种结构中,输送辊能够由输送驱动部或输送对位驱动部驱动。

    Feeding and conveying device with wait position
    3.
    发明授权
    Feeding and conveying device with wait position 失效
    进料和输送装置等待位置

    公开(公告)号:US06988723B2

    公开(公告)日:2006-01-24

    申请号:US10448208

    申请日:2003-05-30

    IPC分类号: B65H3/06

    摘要: A sheet member feeding and conveying apparatus has a tray having a tray main body capable of displacement in directions close to and away from a pickup section for taking out a document in the take-out position. There is a tray driving section for driving the tray main body to be displaced in the directions close to and away from the pickup section. A control section is provided for controlling the tray driving section so as to, in a feeding state, drive the tray main body to be displaced so that a document closest to the pickup section held on the tray is placed in the take-out position, and in a waiting state, drive the tray main body to be displaced in a waiting position closer to the pickup section than a position where the maximum holding amount of documents are held on the tray.

    摘要翻译: 片材进给和输送装置具有托盘,该托盘具有托盘主体,该托盘主体能够在靠近和远离用于取出取出位置的文档的拾取部分的方向上移位。 存在用于驱动托盘主体沿着靠近和远离拾取部分的方向移位的托盘驱动部分。 提供控制部分,用于控制托盘驱动部分,以便在馈送状态下驱动托盘主体移动,使得最靠近托盘上的拾取部分的原稿放置在取出位置, 并且在等待状态下,驱动托盘主体在与文档的最大保持量保持在托盘上的位置相比更靠近拾取部分的等待位置移动。

    Top sheet feeding apparatus
    4.
    发明授权
    Top sheet feeding apparatus 失效
    顶页送料装置

    公开(公告)号:US5181710A

    公开(公告)日:1993-01-26

    申请号:US672654

    申请日:1991-03-20

    CPC分类号: B65H3/48

    摘要: A sheet feeding apparatus enables the uppermost sheet in sequence in a stack of recording papers be lifted by air flow to separate and to convey the recording paper. The feeding apparatus comprises a laying plate on which plural sheets are stacked, a sheet feeding means disposed above the stacked sheets, which means partially deforms the first sheet in sequence by negative pressure at the leading end part of the sheet, and air forming means which injects air flow between the first sheet and the next sheet near the both ends in the widthwise direction of the recording paper, which flow comprises a straightforward air flow, and an air flow directed outwardly in the widthwise direction. The recording paper is separated from the next sheet by the air flow.

    Sheet feeding apparatus that uses a variable vacuum surface and timer to
achieve a duplicate feed preventive function
    5.
    发明授权
    Sheet feeding apparatus that uses a variable vacuum surface and timer to achieve a duplicate feed preventive function 失效
    使用可变真空表面和定时器实现重复进料预防功能的送纸装置

    公开(公告)号:US5181706A

    公开(公告)日:1993-01-26

    申请号:US672652

    申请日:1991-03-20

    摘要: When stacking up recording papers on a tray and conveying one by one from the top or bottom, they are conveyed by attracting in vacuum to a conveying belt. An example of conveying from the bottom is illustrated. When one recording paper is conveyed, its rear end comes into the attraction region of the conveying belt, and the second recording paper is attracted into the region out of the first recording paper in the attraction region, which results in duplicate feed. Therefore, the size of the attraction region is variable depending on the size of the recording paper so that the attraction region of the conveying belt may not come out from the rear end of the recording paper until the first recording paper is conveyed and its front end is held by the rear rollers of the conveying belt or the like.

    摘要翻译: 当将记录纸堆叠在托盘上并从顶部或底部逐个输送时,它们通过真空吸引而输送到输送带。 示出了从底部输送的示例。 当一个记录纸被输送时,其后端进入传送带的吸引区域,并且第二记录纸被吸引到吸引区域中的第一记录纸之外的区域中,这导致重复进给。 因此,吸引区域的大小根据记录纸的尺寸而变化,使得传送带的吸引区域在记录纸的后端直到第一记录纸被传送之前不会从记录纸的后端出来,并且其前端 由输送带等的后辊保持。

    Feeding device
    6.
    发明授权
    Feeding device 失效
    送料装置

    公开(公告)号:US5135214A

    公开(公告)日:1992-08-04

    申请号:US732226

    申请日:1991-07-17

    IPC分类号: B65H1/04

    摘要: A feeding device has a rotative threaded shaft and a rotatable paper tray. A movable joint is attached to the rotative threaded shaft, and permitted to move on the shaft. The movable joint is coupled to one corner of the rotatable paper tray. A shaft drive plate is secured to the movable joint. In the vicinity of the rotative threaded shaft, is disposed a shifting shaft extending in the direction of movable joint movements, which is permitted to freely move in the direction. An engaging member to be depressed by engaging the shaft drive plate and a spring to urge the shifting shaft to be located in a predetermined position, are attached to the shifting shaft. On the other hand, in the feeding device main body, there are installed an action plate for making a forward or backward movement in response to a movement of the shifting shaft driven by the shaft drive plate and switch for performing ON/OFF operation in response to shifting positions of the action plate. Thus, this arrangement makes it possible to reduce the number of required parts for connecting the feeding device to the feeding device main body and for detecting operating conditions of the rotatable paper tray.

    摘要翻译: 进给装置具有旋转螺纹轴和可旋转纸盘。 可动接头连接在旋转螺纹轴上,允许在轴上移动。 可移动接头联接到可旋转纸盘的一个角。 轴驱动板固定在可动接头上。 在旋转螺纹轴附近设置有沿可动接头运动方向延伸的变速轴,允许沿该方向自由移动。 通过接合轴驱动板而被压下的接合构件和用于推动变速轴位于预定位置的弹簧被附接到变速轴。 另一方面,在进给装置主体中,安装有用于响应于由轴驱动板驱动的换档轴的运动和用于响应地进行ON / OFF操作的开关而进行向前或向后运动的动作板 以移动动作板的位置。 因此,这种布置使得可以减少用于将馈送装置连接到馈送装置主体的所需部分的数量,并且用于检测可旋转纸盘的操作条件。