Recording-material-transporting device and image forming apparatus

Patent metadata

Field	Value
Publication number	US-11339017-B2
Application number	US-202016920398-A
Country	US
Kind code	B2
Filing date	Jul 2, 2020
Priority date	Feb 3, 2020
Publication date	May 24, 2022
Grant date	May 24, 2022

Abstract

A recording-material-transporting device includes an attracting part to which a recording material is attracted from below, and a blowing device that blows air from a position higher than the attracting part to an edge of the recording material attracted to the attracting part.

First claim

What is claimed is:

1. A recording-material-transporting device comprising:
an attracting part to which a recording material is attracted from below; and
a blowing device that blows air from a position higher than the attracting part to an edge of the recording material attracted to the attracting part,
wherein the blowing device comprises a rugged part again which the material attracted to the attracting part is pressed such that the edge of the recording material is made to have a wavy shape.

2. The recording-material-transporting device according to claim 1 ,
wherein the blowing device blows air to the edge by sending air obliquely downward from the position higher than the attracting part, the position being away from the edge.

3. The recording-material-transporting device according to claim 1 ,
wherein the air to be blown to the edge from the position higher than the attracting part is first directed upward from a position lower than the attracting part to the position higher than the attracting part and is redirected downward.

4. The recording-material-transporting device according to claim 3 ,
wherein the blowing device comprises an air guiding part that guides the air directed to the position higher than the attracting part,
wherein the air directed upward is guided downward by the air guiding part.

5. The recording-material-transporting device according to claim 4 ,
wherein the air guiding part is included in a member of the blowing device having the rugged part.

6. The recording-material-transporting device according to claim 4 ,
wherein a lower surface of a member included in the blowing device is used in causing the air directed upward to the position higher than the attracting part to be guided downward.

7. The recording-material-transporting device according to claim 6 ,
wherein the lower surface includes a slope descending from a side farther from the edge of the recording material toward a side nearer to the edge such that the air directed downward flows toward the edge.

8. The recording-material-transporting device according to claim 7 ,
wherein the lower surface includes a guiding part on a side farther from the edge than the slope, and
wherein the air directed to the position higher than the attracting part is guided by the guiding part toward the slope.

9. The recording-material-transporting device according to claim 1 ,
wherein the air from the position higher than the attracting part is blown to a wavy part of the edge.

10. An image forming apparatus comprising:
an image forming device that forms an image on a recording material; and
the recording-material-transporting device according to claim 1 .

11. A recording-material-transporting device comprising:
an attracting part to which a recording material is attracted from below; and
a blowing device that blows air from a position higher than the attracting part to an edge of the recording material attracted to the attracting part,
wherein the blowing device comprises an air guiding part that guides the air directed to the position higher than the attracting part,
wherein the air guiding part has a recess that is concave upward, and
wherein the air directed upward to the position higher than the attracting part is guided by an inner surface of the recess in such a manner as to be blown downward to the edge.

12. The recording-material-transporting device according to claim 11 ,
wherein the inner surface of the recess is concave upward and is curved in such a manner as to form an arc in sectional view.

13. The recording-material-transporting device according to claim 11 , further comprising:
a counter member that faces the inner surface of the recess while being spaced apart from the inner surface.

14. The recording-material-transporting device according to claim 11 , further comprising:
a discharge port from which the air to be directed toward the recess of the air guiding part is discharged,
wherein a width of the recess in a direction in which the edge extends is greater than or equal to a width of the discharge port in the direction in which the edge extends.

15. A recording-material-transporting device comprising:
an attracting part to which a recording material is attracted from below; and
a blowing device that blows air to an edge of the recording material attracted to the attracting part, the air being blown from a position higher than the edge,
wherein the blowing device comprises an air guiding part that guides the air directed to the position higher than the attracting part, and the air guiding part has a recess that is concave upward.

16. The recording-material-transporting device according to claim 15 , further comprising:
a recording-material-meeting surface positioned on a downstream side with respect to the attracting part in a transport direction of the recording material and facing downward such that a part of the recording-material-meeting surface meets the recording material attracted to the attracting part; and
an air sending unit provided at a position lower than the attracting part,
wherein the recording-material-meeting surface include a rugged surface, and
wherein the recording-material-meeting surface intersects an extension line extending in a direction in which the air sending unit sends air.

17. The recording-material-transporting device according to claim 16 ,
wherein the rugged surface includes ridges that are arranged in bilateral symmetry when seen from the downstream side in the transport direction of the recording material.

Assignees

• Fujifilm Business Innovation Corp

Inventors

• Niwa Masahito

Classifications

• G03G15/6511 Primary

  Feeding devices for picking up or separation of copy sheets · CPC title

• B65H2301/44734

  overhead, i.e. hanging material ba attraction forces, e.g. suction, magnetic forces · CPC title

• G03G2215/004

  Separation device · CPC title

• B65H5/062

  between rollers or balls · CPC title

• B65H3/48 Primary

  Air blast acting on edges of, or under, articles · CPC title