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Sheet stacking apparatus, sheet storing apparatus, and image forming apparatus

a technology of stacking apparatus and storage apparatus, which is applied in the directions of transportation and packaging, thin material handling, and article delivery, etc., can solve the problem of inevitably increasing apparatus size, and achieve the effect of increasing the apparatus siz

Inactive Publication Date: 2014-11-20
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is directed to apparatuses for stacking sheets, storing sheets, and forming images on sheets without increasing the size of the apparatus. The invention includes multiple sheet stacking units that are lapped over each other in a way that a sheet can be stacked on top of another sheet. Each stacking unit has a pusher and a drive transmission unit that provides power to the pusher. The drive transmission unit is located outside of the stacking member in a way that allows for efficient use of space when stacking sheets. This design helps to avoid excessive size of the apparatus and makes it more efficient in terms of space utilization.

Problems solved by technology

While Japanese Patent Application Laid-Open No. 2008-156089 does not discuss an apparatus equipped with a plurality of trays for stacking, if the post-processing apparatus is simply equipped with a plurality of configurations discussed in Japanese Patent Application Laid-Open No. 2008-156089, the size of the apparatus may inevitably increase.

Method used

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  • Sheet stacking apparatus, sheet storing apparatus, and image forming apparatus
  • Sheet stacking apparatus, sheet storing apparatus, and image forming apparatus
  • Sheet stacking apparatus, sheet storing apparatus, and image forming apparatus

Examples

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Embodiment Construction

[0019]Various exemplary embodiments, features, and aspects of the invention will be described in detail below with reference to the drawings.

[0020]FIG. 5 is a sectional view illustrating a configuration of an image forming apparatus 100 equipped with a sheet storing apparatus 200 according to a first exemplary embodiment of the present invention. As illustrated in FIG. 5, a main body of the image forming apparatus 100 (hereinafter referred to as an apparatus body 100) includes an image forming unit 101, a feeding unit 102, which feeds a sheet S to the image forming unit 101, a fixing unit 103, and a sheet discharging unit 104. The sheet storing apparatus 200, which temporarily stores a sheet S having an image formed thereon, is attached to the apparatus body 100.

[0021]The image forming unit 101 includes a photosensitive drum 111, which rotates clockwise as viewed in FIG. 5, an exposure device 113, and a charging roller 112, a developing device 114, and a transfer roller 115, which a...

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Abstract

A sheet stacking apparatus for stacking a sheet includes a plurality of sheet stacking units, each of which includes a stacking member, a pushing unit, and a drive transmission unit. The plurality of sheet stacking units are lapped over one another in a sheet thickness direction. The stacking member stacks thereon a sheet conveyed by a conveyance member. The pushing unit pushes an edge of a sheet stacked on the stacking member to move the sheet. The drive transmission unit transmits, to the pushing unit, a drive force generated by a drive source for driving the pushing unit. The drive transmission unit is located outside the stacking member in a direction perpendicular to a direction in which the pushing unit moves the sheet.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a sheet stacking apparatus that stacks sheets, a sheet storing apparatus that stores sheets, and an image forming apparatus.[0003]2. Description of the Related Art[0004]Some conventional image forming apparatuses, such as copying machines, are equipped with a post-processing apparatus that temporarily stacks a plurality of sheets on a tray, staples the sheets, and discharges the stapled sheets (refer to FIG. 2 in Japanese Patent Application Laid-Open No. 2008-156089). Also, Japanese Patent Application Laid-Open No. 2008-156089 discusses a configuration in which, to move a plurality of sheets, a claw-shaped member capable of pushing out a plurality of sheets is driven by an endless belt mounted below a stacking member.[0005]In recent years, the market has demanded downsized image forming apparatuses. While Japanese Patent Application Laid-Open No. 2008-156089 does not discuss an apparatus...

Claims

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Application Information

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IPC IPC(8): B65H29/00B65H31/36B65H31/24
CPCB65H29/00B65H31/36B65H31/24B65H31/02B65H31/3081B65H2220/09B65H2301/4212B65H2403/41B65H2403/724B65H2405/1124B65H2405/1134B65H2405/114B65H2405/324B65H2405/332B65H2801/06
Inventor SUZUKI, YOHEIFUKATSU, MASAYOSHITSUJI, HIROHARU
Owner CANON KK
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