JP2010240799A5

JP2010240799A5 -

Info

Publication number: JP2010240799A5
Application number: JP2009094407A
Authority: JP
Filing date: 2009-04-08
Publication date: 2012-05-31
Anticipated expiration: 2029-04-08

Description

上記目的を達成するため本発明では、シート束を搬送する束搬送手段と、前記シート束の束位置を決める位置決め手段と、前記シート束を押圧する押え手段と、前記シート束を裁断する裁断手段と、を備え、前記位置決め手段にて前記シート束の束位置を決め、前記押え手段にて束位置を決められた前記シート束の所定位置を押圧し、その押え手段による押圧で決められた束位置を保持した状態で前記束搬送手段にて前記シート束を前記裁断手段まで搬送するように構成されている。 In order to achieve the above object, in the present invention, a bundle conveying unit that conveys a sheet bundle, a positioning unit that determines a bundle position of the sheet bundle, a holding unit that presses the sheet bundle, and a cutting unit that cuts the sheet bundle When, with a determined Me a bundle position of the sheet bundle by the positioning means, to press the predetermined position of the sheet bundle that has been decided to bundle location in front Kiosae means, determined by the pressing by the pressing means It was and is configured to convey while holding a bundle position by the bundle conveyance unit to the sheet bundle to the cutting means.

このような構成を有する本発明によれば、裁断が行われる際にシート束の押圧で決められた束位置が保持されていることから、シート束の内部から空気抜きが行われた状態で裁断が行われることとなり、シート束における例えば見開き端縁部（小口）が略直線状に良好に切り揃えられるようになっている。また、押え手段にてシート束を押圧した後に搬送を行った場合であっても、裁断が行われる際にシート束の押圧状態が維持されることとなることから、裁断位置を変更しても良好な裁断状態が得られる。
According to the present invention having such a configuration, since the beam position determined by the pressing of the sheet bundle when the cutting is performed is held, is cut in a state where the air vent is performed from the inside of the sheet stack For example, the spread edge (small edge) in the sheet bundle is well aligned substantially in a straight line. Even when the sheet bundle is conveyed after being pressed by the holding means, the pressing state of the sheet bundle is maintained when cutting is performed. A good cutting state can be obtained.

Claims

A bundle conveying means for conveying the sheet bundle, a positioning means for determining a bundle position of the sheet bundle, a pressing means for pressing the sheet bundle, and a cutting means for cutting the sheet bundle,
Determine Me a bundle position of the sheet bundle by the positioning means, before pressing the predetermined position of the sheet bundle that has been decided to bundle location in Kiosae means, holding the bundle position determined by the pressing by the pressing means sheet cutting apparatus characterized by being configured to the sheet bundle by the bundle conveying means while conveying to said cutting means.

2. The sheet cutting apparatus according to claim 1, wherein the pressing means includes a roller-shaped member that also serves as the bundle conveying means.

3. The sheet cutting apparatus according to claim 2, wherein a plurality of roller-shaped members of the pressing means are provided in the sheet bundle conveying direction.

5. The sheet cutting device according to claim 4, wherein at least one of the roller-shaped members is disposed at a position where the roller-shaped member is in contact with a substantially top portion of the bulging portion of the sheet bundle.

5. A saddle-stitching bookbinding unit that performs saddle stitching in a bundle of center-folded sheets folded in a booklet shape with a center-folding portion as a center, and the saddle-stitching bookbinding unit according to claim 1. A sheet post-processing apparatus, wherein a sheet cutting apparatus is continuously provided.

An image forming apparatus comprising: an image forming unit that forms an image on a sheet; and the sheet post-processing device according to claim 5 connected to the image forming unit.

6. An image forming system, wherein the sheet post-processing apparatus according to claim 5 is connected to an image forming apparatus that forms an image on a sheet.