Sheet material conveyor and image forming device with said device and image reader
A technology for conveying devices and sheets, applied in the directions of printing devices, transportation and packaging, object separation, etc.
Inactive Publication Date: 2006-08-23
CANON DENSHI KK
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Problems solved by technology
[0027] However, in a sheet conveying device employing such a delay method, for example, in a vertical sheet conveying device in which the sheet is inclined and the sheet enters the gripping portion due to its own weight, there is sometimes an interaction due to the own weight of the sheet S. , so that sheets with a high friction coefficient cannot be blocked by the conveying restriction guide 54, so that multiple sheets enter like a single sheet.
Method used
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[0050] Next, embodiments of the present invention will be described with reference to the drawings.
[0051] Figure 2A and FIG. 2B is a diagram showing the structure of the image reading apparatus of the first embodiment of the present invention.
[0052] exist Figure 2AIn FIG. 2B , 100 is an image reading device, 100A is a main body of the image reading device, 100B is a sheet supporting part that supports stacking and supporting the sheets S in a state of being inclined, 102, 103 100C is a sheet transport device that transports the sheet S supported by the sheet stacker 100B to the front and back image reading units 102 and 103 .
[0053] The sheet conveying device 100C is composed of a sheet conveying mechanism, that is, a conveying roller 1, and a separating mechanism that is in pressure contact with the conveying roller 1, that is, a separating roller 2, and is equipped with a sheet S that is stacked on the sheet stacking unit 100B one by one. Separation of the separ...
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A sheet feeding apparatus for separating and feeding sheets supported on a sheet supporting portion one by one is provided with a separating and feeding portion having a sheet feed roller provided downstream of the sheet supporting portion for feeding the sheets, and a separation roller brought into pressure contact with the sheet feed roller, and designed to be rotatable in the same direction as or a direction opposite to the rotational direction of the sheet feed roller, and separating and feeding the sheets one by one, and a transport restriction guide provided near the separation roller so as to protrude toward the sheet feed roller for restricting the number of sheets coming into the pressure contact portion between the sheet feed roller and the separation roller, and the transport restriction guide is formed by a flexible member, and is provided so as to be pressed by the sheets coming into between the sheet feed roller and the separation roller and be flexible toward the separation roller side, and the transport restriction guide is flexed so as to abut against the separation roller.
Description
technical field [0001] The present invention relates to a sheet conveying device, an image forming apparatus and an image reading device equipped with the sheet conveying device, and particularly relates to a structure for separating and conveying sheets one by one. Background technique [0002] In recent years, image forming devices such as image reading devices, printers, copiers, facsimile machines, and complex devices with multiple functions are provided with functions that separate sheets of originals, recording papers, etc. Sheet conveying device in the forming section. And, as such a sheet conveyance device, a delay separation method capable of separating sheets from a low speed to a high speed with high reliability is widely used. [0003] Here, the delayed separation method is to use a conveying roller that rotates in the sheet conveying direction, and press the conveying roller with a predetermined pressure while moving in the direction opposite to the sheet conve...
Claims
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IPC IPC(8): B65H3/06B65H3/46G06K15/16B41J13/00B65H3/52B65H3/56
CPCB65H3/5246B65H3/56B65H3/06
Inventor 岛村昌志白井雅浩
Owner CANON DENSHI KK