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EP-4741329-A1 - SHEET CONVEYING APPARATUS

EP4741329A1EP 4741329 A1EP4741329 A1EP 4741329A1EP-4741329-A1

Abstract

A sheet conveying apparatus (120) includes a feed roller (46), a separation pad (48), a separation roller (47), and at least one groove (48A). The feed roller (46) feeds at least one sheet (G) from a sheet feeding tray (36) in a predetermined conveying direction (Z). The separation pad (48) is provided on a downstream side of the feed roller (46) in the conveying direction (Z). The separation roller (47) holds the at least one sheet (G) fed by the feed roller (46) between itself and the separation pad (48) and conveys the at least one sheet (G) in the conveying direction (Z). At least one groove (48A) is provided on a surface of the separation pad (48) with which the at least one sheet (G) comes into contact.

Inventors

  • ISODA, REN
  • HARADA, HIROYUKI

Assignees

  • KYOCERA Document Solutions Inc.

Dates

Publication Date
20260513
Application Date
20251103

Claims (6)

  1. A sheet conveying apparatus (120) comprising: a feed roller (46) which feeds at least one sheet (G) from a sheet feeding tray (36) in a predetermined conveying direction (Z); a separation pad (48) which is provided on a downstream side of the feed roller (46) in the conveying direction (Z); a separation roller (47) which holds the at least one sheet (G) fed by the feed roller (46) between itself and the separation pad (48) and conveys the at least one sheet (G) in the conveying direction (Z); and at least one groove (48A) which is provided on a surface of the separation pad (48) with which the at least one sheet (G) comes into contact.
  2. The sheet conveying apparatus (120) according to claim 1, wherein the at least one groove (48A) includes a first groove formed in a straight line along the conveying direction (Z), a second groove formed in a straight line along an inclination direction inclined to the conveying direction (Z), the inclination direction being different from a direction orthogonal to the conveying direction (Z), a third groove formed in a curved shape extending in the conveying direction (Z), or a fourth groove formed in a curved shape extending in the inclination direction.
  3. The sheet conveying apparatus (120) according to claim 2, wherein on the surface of the separation pad (48), the first groove and at least one of the second groove, the third groove, or the fourth groove are formed in a direction orthogonal to the conveying direction (Z) according to a predetermined rule or irregularly.
  4. The sheet conveying apparatus (120) according to any one of claims 1 to 3, wherein a plurality of kinds of the separation pads (48) having different specifications of the at least one groove (48A) is interchangeable.
  5. The sheet conveying apparatus (120) according to any one of claims 1 to 4, further comprising: a separation pad holder (50) which holds the separation pad (48), and a conveying guide member (39A) which guides a conveyance of the at least one sheet (G) and detachably supports the separation pad holder (50).
  6. The sheet conveying apparatus (120) according to any one of claims 1 to 5, wherein the at least one sheet (G) includes a first sheet (G) and a second sheet (G), a plurality of grooves (48A) are provided on the surface of the separation pad (48), a specification including at least one of a width, a depth, an interval, or a number of the plurality of grooves (48A) is such that when the first sheet (G) and the second sheet (G) are fed by the feed roller (46) in an overlapping state, a friction coefficient between the first sheet (G) and the surface of the separation pad (48) is larger than a friction coefficient between the first sheet (G) and the second sheet (G).

Description

BACKGROUND The present disclosure relates to a sheet conveying apparatus. A document conveying apparatus for conveying a document along a conveying path passing through a reading position of a document reading apparatus is known. The document conveying apparatus includes a tray on which the document is placed and a feed roller which feeds the document from the tray. The feed roller comes into contact with the document placed on the tray, when the feed roller is worn or the documents are stuck to each other due to static electricity, a double feeding occurs in which two or more documents are fed in an overlapped state. Therefore, a technique for separating the double fed documents has been studied. For example, in the document conveying apparatus disclosed in JP2005112525, a separation roller and a separation pad are provided on the downstream side of the feed roller in the feed direction. By holding the document between the separation roller and the separation pad and conveying the document, the double fed documents are separated. SUMMARY A sheet conveying apparatus according to the present disclosure includes a feed roller, a separation pad, a separation roller, and at least one groove. The feed roller feeds at least one sheet from a sheet feeding tray in a predetermined conveying direction. The separation pad is provided on a downstream side of the feed roller in the conveying direction. The separation roller holds the at least one sheet fed by the feed roller between itself and the separation pad and conveys the at least one sheet in the conveying direction. At least one groove is provided on a surface of the separation pad with which the at least one sheet comes into contact. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an appearance of an image forming system according to one embodiment of the present disclosure.FIG. 2 is a front view schematically showing a configuration of a document conveying apparatus and a document reading apparatus according to the embodiment of the present disclosure.FIG. 3 is a right side view schematically showing a configuration of a printing apparatus according to the embodiment of the present disclosure.FIG. 4 is a cross-sectional view showing the configuration of the document conveying apparatus according to the embodiment of the present disclosure.FIG. 5 is a cross-sectional view showing a feed part and a separation pad according to the embodiment of the present disclosure.FIG. 6 is a cross-sectional view showing the feed part and the separation pad according to the embodiment of the present disclosure.FIG. 7 is a cross-sectional view showing the feed part and the separation pad according to the embodiment of the present disclosure.FIG. 8 is a perspective view showing a cross section of a conveying guide member and the separation pad according to the embodiment of the present disclosure.FIG. 9 is a perspective view showing a cross section of the conveying guide member and the separation pad according to the embodiment of the present disclosure.FIG. 10 is a perspective view showing the feed part according to the embodiment of the present disclosure.FIG. 11 is a perspective view showing a separation pad holder according to the embodiment of the present disclosure.FIG. 12 is a perspective view showing the separation pad holder according to the embodiment of the present disclosure.FIG. 13 is a front view showing the separation pad holder according to the embodiment of the present disclosure.FIG. 14 is a perspective view showing the separation pad according to the embodiment of the present disclosure.FIG. 15 is a perspective view showing the separation pad according to the embodiment of the present disclosure.FIG. 16 is a perspective view showing the separation pad according to the embodiment of the present disclosure.FIG. 17 is a front view showing a state in which the separation pad holder is flipped up, in the embodiment of the present disclosure.FIG. 18 is a front view showing a state in which the separation pad holder is removed from a hinge shaft, in the embodiment of the present disclosure. DETAILED DESCRIPTION Hereinafter, with reference to the drawings, an image forming system 100 according to an embodiment of the present disclosure will be described. FIG. 1 is a perspective view showing an appearance of the image forming system 100. FIG. 2 is a front view schematically showing a configuration of a document conveying apparatus 120 and a document reading apparatus 110. FIG. 3 is a right side view schematically showing a configuration of a printing apparatus 1. In each figure, U, Lo, L, R, Fr, and Rr indicate the upper, lower, left, right, front, and rear, respectively. These directions are determined only for convenience of explanation. The image forming system 100 (see FIG. 1) includes the printing apparatus 1, the document reading apparatus 110, and the document conveying apparatus 120. The document reading apparatus 110 is provided above th