Transport device and transport system

Patent metadata

Field	Value
Publication number	US-2016130101-A1
Application number	US-201514709545-A
Country	US
Kind code	A1
Filing date	May 12, 2015
Priority date	Nov 7, 2014
Publication date	May 12, 2016
Grant date	—

Abstract

Provided is a transport device including plural rollers that are provided on a transporting path on which a sheet is transported in a transport direction and is subjected to a process at a process position, and transport the sheet which comes into contact with surfaces of the rollers in the transport direction by rotation of the rollers, among the plural rollers, first rollers that are provided closest to the process position, among the plural rollers, second rollers that are provided closest to the first rollers on an opposite side with respect to the process position, and a driving unit that drives the first rollers and the second rollers to rotate so that a speed of a surface of the first roller is faster than a speed of a surface of the second roller at least while the sheet passes through the process position.

First claim

What is claimed is:

1 . A transport device comprising:
a plurality of rollers that are provided on a transporting path on which a sheet is transported in a transport direction and is subjected to a process at a process position, and transport the sheet which comes into contact with surfaces of the rollers in the transport direction by rotation of the rollers; among the plurality of rollers, first rollers that are provided closest to the process position on a downstream side in the transport direction of the process position; among the plurality of rollers, second rollers that are provided closest to the first rollers on an opposite side with respect to the process position in the transport direction when viewed from the first rollers; and a driving unit that drives the first rollers and the second rollers to rotate so that a speed of a surface of the first roller is faster than a speed of a surface of the second roller at least while the sheet passes through the process position.

2 . The transport device according to claim 1 , further comprising:
a guide member that guides the sheet from the first rollers to the second rollers along the transporting path, and includes a collision surface provided at a position where a tip end of a sheet fed by the first rollers collides with the guide member.

3 . The transport device according to claim 2 , wherein
in a portion of the transporting path on which the guide member is provided, the transporting path on an upstream side in the transport direction of the collision surface is wider than the transporting path on the downstream side in the transport direction of the collision surface.

4 . The transport device according to claim 1 , wherein
among the plurality of rollers, third rollers are provided closest to the process position on an upstream side of the process position in the transport direction, among the plurality of rollers, fourth rollers are provided closest to the third rollers on an upstream side of the third rollers in the transport direction, and the driving unit drives the third rollers and the fourth rollers to rotate so that a speed of a surface of the fourth roller is faster than a speed of a surface of the third roller at least while the sheet passes through the process position.

5 . The transport device according to claim 2 , wherein
among the plurality of rollers, third rollers are provided closest to the process position on an upstream side of the process position in the transport direction, among the plurality of rollers, fourth rollers are provided closest to the third rollers on an upstream side of the third rollers in the transport direction, and the driving unit drives the third rollers and the fourth rollers to rotate so that a speed of a surface of the fourth roller is faster than a speed of a surface of the third roller at least while the sheet passes through the process position.

6 . The transport device according to claim 3 , wherein
among the plurality of rollers, third rollers are provided closest to the process position on an upstream side of the process position in the transport direction, among the plurality of rollers, fourth rollers are provided closest to the third rollers on an upstream side of the third rollers in the transport direction, and the driving unit drives the third rollers and the fourth rollers to rotate so that a speed of a surface of the fourth roller is faster than a speed of a surface of the third roller at least while the sheet passes through the process position.

7 . The transport device according to claim 4 , wherein
the process position includes a first process position and a second process position which is positioned on a downstream side of the first process position in the transport direction, fifth rollers that are the first rollers provided on a downstream side of the first process position are included, sixth rollers that are the second rollers provided on a downstream side of the third rollers are included, seventh rollers that are the third rollers provided on an upstream side of the second process position are included, eighth rollers that are the fourth rollers provided on the downstream side of the third rollers are included, and the driving unit drives the fifth and sixth rollers so that a speed of a surface of the fifth roller is faster than a speed of a surface of the sixth roller at least while the sheet passes through the first process position, and drives the seventh and eighth rollers so that a speed of a surface of the eighth roller is faster than a speed of a surface of the seventh roller at least after the sheet passes through the first process position.

8 . The transport device according to claim 5 , wherein
the process position includes a first process position and a second process position which is positioned on a downstream side of the first process position in the transport direction, fifth rollers that are the first rollers provided on a downstream side of the first process position are included, sixth rollers that are the second rollers provided on a downstream side of the third rollers are included, seventh rollers that are the third rollers provided on an upstream side of the second process position are included, eighth rollers that are the fourth rollers provided on the downstream side of the third rollers are included, and the driving unit drives the fifth and sixth rollers so that a speed of a surface of the fifth roller is faster than a speed of a surface of the sixth roller at least while the sheet passes through the first process position, and drives the seventh and eighth rollers so that a speed of a surface of the eighth roller is faster than a speed of a surface of the seventh roller at least after the sheet passes through the first process position.

9 . The transport device according to claim 6 , wherein
the process position includes a first process position and a second process position which is positioned on a downstream side of the first process position in the transport direction, fifth rollers that are the first rollers provided on a downstream side of the first process position are included, sixth rollers that are the second rollers provided on a downstream side of the third rollers are included, seventh rollers that are the third rollers provided on an upstream side of the second process position are included, eighth rollers that are the fourth rollers provided on the downstream side of the third rollers are included, and the driving unit drives the fifth and sixth rollers so that a speed of a surface of the fifth roller is faster than a speed of a surface of the sixth roller at least while the sheet passes through the first process position, and drives the seventh and eighth rollers so that a speed of a surface of the eighth roller is faster than a speed of a surface of the seventh roller at least after the sheet passes through the first process position.

10 . The transport device according to claim 7 , further comprising:
a first processor that performs a reading process of reading an image by scanning the sheet at the first process position; and a second processor that performs the reading process by scanning the sheet at the second process position at a speed slower than a speed of the first processor, wherein the driving unit drives the fifth, sixth, seventh, and eighth rollers so that the speed of the surface of the fifth roller is faster than the speed of the surface of the sixth roller, the speed of the surface of the sixth roller is equal to or faster than the speed of the surface of the eighth roller, and the speed of the surface of the eighth roller is faster than the speed of the surface of the

Assignees

• Fuji Xerox Co Ltd

Inventors

• Hachisuga Masaki
• Furuya Takao
• Makida Seigo
• Fukunaga Kazuya
• Hiramatsu Takashi
• Aikawa Kiyofumi
• Moriya Hideki
• Kikuchi Michio

Classifications

• B65H7/02 Primary

  by feelers or detectors · CPC title

• H04N1/0476

  Indicating the scanning velocity · CPC title

• H04N1/123

  Using a dedicated sheet guide element · CPC title

• B65H5/068 Primary

  between one or more rollers or balls and stationary pressing, supporting or guiding elements · CPC title

• B65H7/20

  Controlling associated apparatus · CPC title