JP2019069860A5

JP2019069860A5 - Sheet processing apparatus and image forming system

Info

Publication number: JP2019069860A5
Application number: JP2019022497A
Authority: JP
Filing date: 2019-02-12
Publication date: 2019-10-10
Anticipated expiration: 2034-02-26

Description

本発明は、用紙処理装置及び画像形成システムに係り、特に搬入されてきた用紙、転写紙、印刷紙、ＯＨＰシートなどのシート状記録媒体（本明細書では、「用紙」と称す）に対して折り処理を施すシート処理装置、及びこの用紙処理装置と複写機、プリンタ、ファクシミリ、デジタル複合機などの画像形成装置とを備えた画像形成システムに関する。 The present invention relates to a paper processing apparatus and an image forming system, and particularly to a sheet-like recording medium (referred to as “paper” in the present specification) such as paper, transfer paper, printing paper, and OHP sheet that has been carried in. The present invention relates to a sheet processing apparatus that performs a folding process, and an image forming system including the sheet processing apparatus and an image forming apparatus such as a copying machine, a printer, a facsimile, or a digital multifunction peripheral.

前記課題を解決するため、本発明は、シートを折る第１の搬送部材対と、前記第１の搬送部材対によって折られた前記シートを下流へ搬送する第２の搬送部材対と、前記第１の搬送部材対によって折られた前記シートをさらに折る第３の搬送部材対と、を備え、前記第２の搬送部材対は、駆動ローラを有し、前記駆動ローラは、非駆動時には、前記シートを上流へ搬送する方向にはロックされ、当該シートを下流へ搬送する方向には回転可能であるシート処理装置を特徴とする。なお、前記以外の課題、構成及び効果は、以下の実施形態の説明において明らかにされる。 To solve the above problems, the present invention includes a first conveying member pairs folding seat, and a second conveying member pair that conveys the sheet folded by the first conveying member pairs downstream, said first comprising a third conveying member pairs further folding the sheet folded by the first transport member pair, wherein the second conveying member pair has a driving roller, the driving roller, during non-driving, the in the direction for conveying the sheet to the upstream locked, in the direction for conveying the sheet to the downstream, characterized in the sheet processing apparatus is rotatable. Note that problems, configurations, and effects other than those described above will be clarified in the following description of embodiments.

Claims

A first conveying member pair for folding the sheet ;
A second conveying member pair that conveys the sheet folded by the first conveying member pair downstream;
A third conveying member pair that further folds the sheet folded by the first conveying member pair;
The second conveying member pair has a driving roller,
The drive roller, at the time of non-driving, a direction to convey the sheet to the upstream is locked, the sheet processing apparatus is rotatable in the direction to convey the sheet downstream.

The sheet processing apparatus according to claim 1,
A fourth conveying member pair for conveying the sheet ;
A fifth conveying member pair that receives a sheet conveyed by the fourth conveying member pair and conveys the sheet to a subsequent stage;
Further comprising
A sheet processing apparatus, wherein the fifth conveying member pair is rotated in a reverse direction while the sheet is held by the fourth conveying member pair and the fifth conveying member pair.

In the sheet processing apparatus according to claim 1 or 2,
The sheet processing apparatus is characterized in that the rotatable range is preset.

In the sheet processing apparatus according to claim 3,
The preset rotatable range is such that when the driving roller stops and the third conveying member pair conveys the sheet downstream, the second conveying member pair and the third conveying member pair. A sheet processing apparatus having a rotation range sufficient to eliminate the bending of the sheet generated during the period.

The sheet processing apparatus according to claim 4, wherein
The third when folding the sheet by the conveying member pair, the sheet processing apparatus, wherein the second conveying member pair is stopped.

The sheet processing apparatus according to claim 5, wherein
The sheet is conveyed by the third pair of conveying members, and the driving roller is pulled by the sheet along with the conveyance to start idling, and after elapse of a preset time before the idling ends, The sheet processing apparatus, wherein the driving roller is rotationally driven in the pulling direction.

The sheet processing apparatus according to claim 6,
The sheet processing apparatus, wherein the sheet conveying speed when the driving roller is rotationally driven is set to a speed equal to or higher than the sheet conveying speed of the third conveying member pair. .

The sheet processing apparatus according to any one of claims 1 to 7,
The drive roller includes a drive unit that includes a drive member that rotates concentrically with the drive shaft, a driven unit that is driven by the drive member, and an idle region in which the drive member idles. Sheet processing apparatus.

In the sheet processing apparatus according to any one of claims 1 to 8,
The second conveying member pair, the sheet processing apparatus, characterized in that each drive roller.

The sheet processing apparatus according to any one of claims 1 to 7 ,
Each of the second conveying member pairs is a driving roller,
A sheet processing apparatus, wherein a drive unit of one drive roller of the second conveying member pair is provided with a one-way clutch, and a drive unit of the other drive roller is provided with an electromagnetic clutch.

Image forming system comprising the sheet processing apparatus according to any one of 請 Motomeko 1 to 10.